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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support Reviewed-by: kvn
author simonis
date Fri, 06 Sep 2013 20:16:09 +0200
parents
children 3068270ba476
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14415
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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1 /*
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2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * Copyright 2012, 2013 SAP AG. All rights reserved.
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 *
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6 * This code is free software; you can redistribute it and/or modify it
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7 * under the terms of the GNU General Public License version 2 only, as
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8 * published by the Free Software Foundation.
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9 *
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10 * This code is distributed in the hope that it will be useful, but WITHOUT
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 * version 2 for more details (a copy is included in the LICENSE file that
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14 * accompanied this code).
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15 *
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16 * You should have received a copy of the GNU General Public License version
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17 * 2 along with this work; if not, write to the Free Software Foundation,
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 *
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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21 * or visit www.oracle.com if you need additional information or have any
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22 * questions.
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23 *
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24 */
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25
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26 // According to the AIX OS doc #pragma alloca must be used
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27 // with C++ compiler before referencing the function alloca()
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28 #pragma alloca
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29
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30 // no precompiled headers
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31 #include "classfile/classLoader.hpp"
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32 #include "classfile/systemDictionary.hpp"
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33 #include "classfile/vmSymbols.hpp"
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34 #include "code/icBuffer.hpp"
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35 #include "code/vtableStubs.hpp"
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36 #include "compiler/compileBroker.hpp"
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37 #include "interpreter/interpreter.hpp"
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38 #include "jvm_aix.h"
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39 #include "libperfstat_aix.hpp"
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40 #include "loadlib_aix.hpp"
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41 #include "memory/allocation.inline.hpp"
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42 #include "memory/filemap.hpp"
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43 #include "mutex_aix.inline.hpp"
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44 #include "oops/oop.inline.hpp"
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45 #include "os_share_aix.hpp"
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46 #include "porting_aix.hpp"
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47 #include "prims/jniFastGetField.hpp"
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48 #include "prims/jvm.h"
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49 #include "prims/jvm_misc.hpp"
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50 #include "runtime/arguments.hpp"
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51 #include "runtime/extendedPC.hpp"
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52 #include "runtime/globals.hpp"
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53 #include "runtime/interfaceSupport.hpp"
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54 #include "runtime/java.hpp"
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55 #include "runtime/javaCalls.hpp"
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56 #include "runtime/mutexLocker.hpp"
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57 #include "runtime/objectMonitor.hpp"
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58 #include "runtime/osThread.hpp"
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59 #include "runtime/perfMemory.hpp"
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60 #include "runtime/sharedRuntime.hpp"
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61 #include "runtime/statSampler.hpp"
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62 #include "runtime/stubRoutines.hpp"
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63 #include "runtime/threadCritical.hpp"
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64 #include "runtime/timer.hpp"
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65 #include "services/attachListener.hpp"
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66 #include "services/runtimeService.hpp"
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67 #include "thread_aix.inline.hpp"
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68 #include "utilities/decoder.hpp"
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69 #include "utilities/defaultStream.hpp"
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70 #include "utilities/events.hpp"
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71 #include "utilities/growableArray.hpp"
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72 #include "utilities/vmError.hpp"
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73 #ifdef TARGET_ARCH_ppc
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74 # include "assembler_ppc.inline.hpp"
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75 # include "nativeInst_ppc.hpp"
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76 #endif
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77 #ifdef COMPILER1
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78 #include "c1/c1_Runtime1.hpp"
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79 #endif
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80 #ifdef COMPILER2
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81 #include "opto/runtime.hpp"
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82 #endif
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83
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84 // put OS-includes here (sorted alphabetically)
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85 #include <errno.h>
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86 #include <fcntl.h>
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87 #include <inttypes.h>
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88 #include <poll.h>
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89 #include <procinfo.h>
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90 #include <pthread.h>
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91 #include <pwd.h>
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92 #include <semaphore.h>
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93 #include <signal.h>
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94 #include <stdint.h>
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95 #include <stdio.h>
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96 #include <string.h>
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97 #include <unistd.h>
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98 #include <sys/ioctl.h>
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99 #include <sys/ipc.h>
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100 #include <sys/mman.h>
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101 #include <sys/resource.h>
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102 #include <sys/select.h>
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103 #include <sys/shm.h>
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104 #include <sys/socket.h>
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105 #include <sys/stat.h>
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106 #include <sys/sysinfo.h>
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107 #include <sys/systemcfg.h>
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108 #include <sys/time.h>
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109 #include <sys/times.h>
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110 #include <sys/types.h>
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111 #include <sys/utsname.h>
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112 #include <sys/vminfo.h>
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113 #include <sys/wait.h>
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114
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115 // Add missing declarations (should be in procinfo.h but isn't until AIX 6.1).
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116 #if !defined(_AIXVERSION_610)
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117 extern "C" {
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118 int getthrds64(pid_t ProcessIdentifier,
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119 struct thrdentry64* ThreadBuffer,
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120 int ThreadSize,
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121 tid64_t* IndexPointer,
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122 int Count);
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123 }
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124 #endif
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125
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126 // Excerpts from systemcfg.h definitions newer than AIX 5.3
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127 #ifndef PV_7
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128 # define PV_7 0x200000 // Power PC 7
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129 # define PV_7_Compat 0x208000 // Power PC 7
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130 #endif
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131
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132 #define MAX_PATH (2 * K)
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133
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134 // for timer info max values which include all bits
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135 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF)
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136 // for multipage initialization error analysis (in 'g_multipage_error')
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137 #define ERROR_MP_OS_TOO_OLD 100
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138 #define ERROR_MP_EXTSHM_ACTIVE 101
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139 #define ERROR_MP_VMGETINFO_FAILED 102
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140 #define ERROR_MP_VMGETINFO_CLAIMS_NO_SUPPORT_FOR_64K 103
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141
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142 // the semantics in this file are thus that codeptr_t is a *real code ptr*
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143 // This means that any function taking codeptr_t as arguments will assume
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144 // a real codeptr and won't handle function descriptors (eg getFuncName),
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145 // whereas functions taking address as args will deal with function
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146 // descriptors (eg os::dll_address_to_library_name)
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147 typedef unsigned int* codeptr_t;
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148
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149 // typedefs for stackslots, stack pointers, pointers to op codes
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150 typedef unsigned long stackslot_t;
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151 typedef stackslot_t* stackptr_t;
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152
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153 // query dimensions of the stack of the calling thread
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154 static void query_stack_dimensions(address* p_stack_base, size_t* p_stack_size);
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155
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156 // function to check a given stack pointer against given stack limits
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157 inline bool is_valid_stackpointer(stackptr_t sp, stackptr_t stack_base, size_t stack_size) {
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158 if (((uintptr_t)sp) & 0x7) {
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159 return false;
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160 }
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161 if (sp > stack_base) {
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162 return false;
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163 }
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164 if (sp < (stackptr_t) ((address)stack_base - stack_size)) {
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165 return false;
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166 }
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167 return true;
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168 }
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169
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170 // returns true if function is a valid codepointer
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171 inline bool is_valid_codepointer(codeptr_t p) {
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172 if (!p) {
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173 return false;
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174 }
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175 if (((uintptr_t)p) & 0x3) {
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176 return false;
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177 }
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178 if (LoadedLibraries::find_for_text_address((address)p) == NULL) {
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179 return false;
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180 }
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181 return true;
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182 }
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183
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184 // macro to check a given stack pointer against given stack limits and to die if test fails
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185 #define CHECK_STACK_PTR(sp, stack_base, stack_size) { \
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186 guarantee(is_valid_stackpointer((stackptr_t)(sp), (stackptr_t)(stack_base), stack_size), "Stack Pointer Invalid"); \
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187 }
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188
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189 // macro to check the current stack pointer against given stacklimits
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190 #define CHECK_CURRENT_STACK_PTR(stack_base, stack_size) { \
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191 address sp; \
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192 sp = os::current_stack_pointer(); \
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193 CHECK_STACK_PTR(sp, stack_base, stack_size); \
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194 }
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195
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196 ////////////////////////////////////////////////////////////////////////////////
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197 // global variables (for a description see os_aix.hpp)
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198
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199 julong os::Aix::_physical_memory = 0;
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200 pthread_t os::Aix::_main_thread = ((pthread_t)0);
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201 int os::Aix::_page_size = -1;
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202 int os::Aix::_on_pase = -1;
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203 int os::Aix::_os_version = -1;
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204 int os::Aix::_stack_page_size = -1;
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205 size_t os::Aix::_shm_default_page_size = -1;
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206 int os::Aix::_can_use_64K_pages = -1;
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207 int os::Aix::_can_use_16M_pages = -1;
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208 int os::Aix::_xpg_sus_mode = -1;
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209 int os::Aix::_extshm = -1;
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210 int os::Aix::_logical_cpus = -1;
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211
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212 ////////////////////////////////////////////////////////////////////////////////
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213 // local variables
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214
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215 static int g_multipage_error = -1; // error analysis for multipage initialization
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216 static jlong initial_time_count = 0;
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217 static int clock_tics_per_sec = 100;
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218 static sigset_t check_signal_done; // For diagnostics to print a message once (see run_periodic_checks)
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219 static bool check_signals = true;
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220 static pid_t _initial_pid = 0;
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221 static int SR_signum = SIGUSR2; // Signal used to suspend/resume a thread (must be > SIGSEGV, see 4355769)
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222 static sigset_t SR_sigset;
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223 static pthread_mutex_t dl_mutex; // Used to protect dlsym() calls */
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224
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225 julong os::available_memory() {
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226 return Aix::available_memory();
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227 }
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228
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229 julong os::Aix::available_memory() {
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230 Unimplemented();
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231 return 0;
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232 }
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233
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234 julong os::physical_memory() {
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235 return Aix::physical_memory();
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236 }
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237
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238 ////////////////////////////////////////////////////////////////////////////////
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239 // environment support
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240
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241 bool os::getenv(const char* name, char* buf, int len) {
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242 const char* val = ::getenv(name);
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243 if (val != NULL && strlen(val) < (size_t)len) {
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244 strcpy(buf, val);
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245 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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246 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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247 if (len > 0) buf[0] = 0; // return a null string
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248 return false;
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249 }
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250
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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251
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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252 // Return true if user is running as root.
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253
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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254 bool os::have_special_privileges() {
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255 static bool init = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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256 static bool privileges = false;
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257 if (!init) {
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258 privileges = (getuid() != geteuid()) || (getgid() != getegid());
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259 init = true;
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260 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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261 return privileges;
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262 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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263
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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264 // Helper function, emulates disclaim64 using multiple 32bit disclaims
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265 // because we cannot use disclaim64() on AS/400 and old AIX releases.
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266 static bool my_disclaim64(char* addr, size_t size) {
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267
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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268 if (size == 0) {
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269 return true;
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270 }
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271
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272 // Maximum size 32bit disclaim() accepts. (Theoretically 4GB, but I just do not trust that.)
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273 const unsigned int maxDisclaimSize = 0x80000000;
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274
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275 const unsigned int numFullDisclaimsNeeded = (size / maxDisclaimSize);
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276 const unsigned int lastDisclaimSize = (size % maxDisclaimSize);
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277
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278 char* p = addr;
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279
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280 for (int i = 0; i < numFullDisclaimsNeeded; i ++) {
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281 if (::disclaim(p, maxDisclaimSize, DISCLAIM_ZEROMEM) != 0) {
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282 //if (Verbose)
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283 fprintf(stderr, "Cannot disclaim %p - %p (errno %d)\n", p, p + maxDisclaimSize, errno);
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284 return false;
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285 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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286 p += maxDisclaimSize;
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287 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
288
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
289 if (lastDisclaimSize > 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
290 if (::disclaim(p, lastDisclaimSize, DISCLAIM_ZEROMEM) != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
291 //if (Verbose)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
292 fprintf(stderr, "Cannot disclaim %p - %p (errno %d)\n", p, p + lastDisclaimSize, errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
293 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
294 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
295 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
296
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
297 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
298 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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299
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
300 // Cpu architecture string
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
301 #if defined(PPC32)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
302 static char cpu_arch[] = "ppc";
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
303 #elif defined(PPC64)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
304 static char cpu_arch[] = "ppc64";
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
305 #else
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
306 #error Add appropriate cpu_arch setting
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
307 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
308
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
309
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
310 // Given an address, returns the size of the page backing that address.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
311 size_t os::Aix::query_pagesize(void* addr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
312
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
313 vm_page_info pi;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
314 pi.addr = (uint64_t)addr;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
315 if (::vmgetinfo(&pi, VM_PAGE_INFO, sizeof(pi)) == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
316 return pi.pagesize;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
317 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
318 fprintf(stderr, "vmgetinfo failed to retrieve page size for address %p (errno %d).\n", addr, errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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319 assert(false, "vmgetinfo failed to retrieve page size");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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320 return SIZE_4K;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
321 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
322
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
323 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
324
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
325 // Returns the kernel thread id of the currently running thread.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
326 pid_t os::Aix::gettid() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
327 return (pid_t) thread_self();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
328 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
329
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
330 void os::Aix::initialize_system_info() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
331
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
332 // get the number of online(logical) cpus instead of configured
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
333 os::_processor_count = sysconf(_SC_NPROCESSORS_ONLN);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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334 assert(_processor_count > 0, "_processor_count must be > 0");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
335
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
336 // retrieve total physical storage
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
337 os::Aix::meminfo_t mi;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
338 if (!os::Aix::get_meminfo(&mi)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
339 fprintf(stderr, "os::Aix::get_meminfo failed.\n"); fflush(stderr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
340 assert(false, "os::Aix::get_meminfo failed.");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
341 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
342 _physical_memory = (julong) mi.real_total;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
343 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
344
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
345 // Helper function for tracing page sizes.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
346 static const char* describe_pagesize(size_t pagesize) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
347 switch (pagesize) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
348 case SIZE_4K : return "4K";
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
349 case SIZE_64K: return "64K";
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
350 case SIZE_16M: return "16M";
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
351 case SIZE_16G: return "16G";
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
352 default:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
353 assert(false, "surprise");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
354 return "??";
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
355 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
356 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
357
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
358 // Retrieve information about multipage size support. Will initialize
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
359 // Aix::_page_size, Aix::_stack_page_size, Aix::_can_use_64K_pages,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
360 // Aix::_can_use_16M_pages.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
361 // Must be called before calling os::large_page_init().
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
362 void os::Aix::query_multipage_support() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
363
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
364 guarantee(_page_size == -1 &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
365 _stack_page_size == -1 &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
366 _can_use_64K_pages == -1 &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
367 _can_use_16M_pages == -1 &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
368 g_multipage_error == -1,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
369 "do not call twice");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
370
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
371 _page_size = ::sysconf(_SC_PAGESIZE);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
372
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
373 // This really would surprise me.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
374 assert(_page_size == SIZE_4K, "surprise!");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
375
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
376
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
377 // query default data page size (default page size for C-Heap, pthread stacks and .bss).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
378 // Default data page size is influenced either by linker options (-bdatapsize)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
379 // or by environment variable LDR_CNTRL (suboption DATAPSIZE). If none is given,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
380 // default should be 4K.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
381 size_t data_page_size = SIZE_4K;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
382 {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
383 void* p = ::malloc(SIZE_16M);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
384 data_page_size = os::Aix::query_pagesize(p);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
385 ::free(p);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
386 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
387
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
388 // query default shm page size (LDR_CNTRL SHMPSIZE)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
389 {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
390 const int shmid = ::shmget(IPC_PRIVATE, 1, IPC_CREAT | S_IRUSR | S_IWUSR);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
391 guarantee(shmid != -1, "shmget failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
392 void* p = ::shmat(shmid, NULL, 0);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
393 ::shmctl(shmid, IPC_RMID, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
394 guarantee(p != (void*) -1, "shmat failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
395 _shm_default_page_size = os::Aix::query_pagesize(p);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
396 ::shmdt(p);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
397 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
398
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
399 // before querying the stack page size, make sure we are not running as primordial
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
400 // thread (because primordial thread's stack may have different page size than
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
401 // pthread thread stacks). Running a VM on the primordial thread won't work for a
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
402 // number of reasons so we may just as well guarantee it here
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
403 guarantee(!os::Aix::is_primordial_thread(), "Must not be called for primordial thread");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
404
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
405 // query stack page size
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
406 {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
407 int dummy = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
408 _stack_page_size = os::Aix::query_pagesize(&dummy);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
409 // everything else would surprise me and should be looked into
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
410 guarantee(_stack_page_size == SIZE_4K || _stack_page_size == SIZE_64K, "Wrong page size");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
411 // also, just for completeness: pthread stacks are allocated from C heap, so
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
412 // stack page size should be the same as data page size
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
413 guarantee(_stack_page_size == data_page_size, "stack page size should be the same as data page size");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
414 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
415
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
416 // EXTSHM is bad: among other things, it prevents setting pagesize dynamically
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
417 // for system V shm.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
418 if (Aix::extshm()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
419 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
420 fprintf(stderr, "EXTSHM is active - will disable large page support.\n"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
421 "Please make sure EXTSHM is OFF for large page support.\n");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
422 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
423 g_multipage_error = ERROR_MP_EXTSHM_ACTIVE;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
424 _can_use_64K_pages = _can_use_16M_pages = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
425 goto query_multipage_support_end;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
426 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
427
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
428 // now check which page sizes the OS claims it supports, and of those, which actually can be used.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
429 {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
430 const int MAX_PAGE_SIZES = 4;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
431 psize_t sizes[MAX_PAGE_SIZES];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
432 const int num_psizes = ::vmgetinfo(sizes, VMINFO_GETPSIZES, MAX_PAGE_SIZES);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
433 if (num_psizes == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
434 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
435 fprintf(stderr, "vmgetinfo(VMINFO_GETPSIZES) failed (errno: %d)\n", errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
436 fprintf(stderr, "disabling multipage support.\n");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
437 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
438 g_multipage_error = ERROR_MP_VMGETINFO_FAILED;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
439 _can_use_64K_pages = _can_use_16M_pages = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
440 goto query_multipage_support_end;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
441 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
442 guarantee(num_psizes > 0, "vmgetinfo(.., VMINFO_GETPSIZES, ...) failed.");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
443 assert(num_psizes <= MAX_PAGE_SIZES, "Surprise! more than 4 page sizes?");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
444 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
445 fprintf(stderr, "vmgetinfo(.., VMINFO_GETPSIZES, ...) returns %d supported page sizes: ", num_psizes);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
446 for (int i = 0; i < num_psizes; i ++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
447 fprintf(stderr, " %s ", describe_pagesize(sizes[i]));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
448 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
449 fprintf(stderr, " .\n");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
450 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
451
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
452 // Can we use 64K, 16M pages?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
453 _can_use_64K_pages = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
454 _can_use_16M_pages = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
455 for (int i = 0; i < num_psizes; i ++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
456 if (sizes[i] == SIZE_64K) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
457 _can_use_64K_pages = 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
458 } else if (sizes[i] == SIZE_16M) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
459 _can_use_16M_pages = 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
460 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
461 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
462
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
463 if (!_can_use_64K_pages) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
464 g_multipage_error = ERROR_MP_VMGETINFO_CLAIMS_NO_SUPPORT_FOR_64K;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
465 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
466
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
467 // Double-check for 16M pages: Even if AIX claims to be able to use 16M pages,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
468 // there must be an actual 16M page pool, and we must run with enough rights.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
469 if (_can_use_16M_pages) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
470 const int shmid = ::shmget(IPC_PRIVATE, SIZE_16M, IPC_CREAT | S_IRUSR | S_IWUSR);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
471 guarantee(shmid != -1, "shmget failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
472 struct shmid_ds shm_buf = { 0 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
473 shm_buf.shm_pagesize = SIZE_16M;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
474 const bool can_set_pagesize = ::shmctl(shmid, SHM_PAGESIZE, &shm_buf) == 0 ? true : false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
475 const int en = errno;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
476 ::shmctl(shmid, IPC_RMID, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
477 if (!can_set_pagesize) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
478 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
479 fprintf(stderr, "Failed to allocate even one misely 16M page. shmctl failed with %d (%s).\n"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
480 "Will deactivate 16M support.\n", en, strerror(en));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
481 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
482 _can_use_16M_pages = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
483 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
484 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
485
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
486 } // end: check which pages can be used for shared memory
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
487
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
488 query_multipage_support_end:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
489
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
490 guarantee(_page_size != -1 &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
491 _stack_page_size != -1 &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
492 _can_use_64K_pages != -1 &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
493 _can_use_16M_pages != -1, "Page sizes not properly initialized");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
494
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
495 if (_can_use_64K_pages) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
496 g_multipage_error = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
497 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
498
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
499 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
500 fprintf(stderr, "Data page size (C-Heap, bss, etc): %s\n", describe_pagesize(data_page_size));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
501 fprintf(stderr, "Thread stack page size (pthread): %s\n", describe_pagesize(_stack_page_size));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
502 fprintf(stderr, "Default shared memory page size: %s\n", describe_pagesize(_shm_default_page_size));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
503 fprintf(stderr, "Can use 64K pages dynamically with shared meory: %s\n", (_can_use_64K_pages ? "yes" :"no"));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
504 fprintf(stderr, "Can use 16M pages dynamically with shared memory: %s\n", (_can_use_16M_pages ? "yes" :"no"));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
505 fprintf(stderr, "Multipage error details: %d\n", g_multipage_error);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
506 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
507
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
508 } // end os::Aix::query_multipage_support()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
509
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
510
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
511 // The code for this method was initially derived from the version in os_linux.cpp
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
512 void os::init_system_properties_values() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
513 // The next few definitions allow the code to be verbatim:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
514 #define malloc(n) (char*)NEW_C_HEAP_ARRAY(char, (n), mtInternal)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
515 #define DEFAULT_LIBPATH "/usr/lib:/lib"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
516 #define EXTENSIONS_DIR "/lib/ext"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
517 #define ENDORSED_DIR "/lib/endorsed"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
518
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
519 // sysclasspath, java_home, dll_dir
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
520 char *home_path;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
521 char *dll_path;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
522 char *pslash;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
523 char buf[MAXPATHLEN];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
524 os::jvm_path(buf, sizeof(buf));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
525
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
526 // Found the full path to libjvm.so.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
527 // Now cut the path to <java_home>/jre if we can.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
528 *(strrchr(buf, '/')) = '\0'; // get rid of /libjvm.so
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
529 pslash = strrchr(buf, '/');
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
530 if (pslash != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
531 *pslash = '\0'; // get rid of /{client|server|hotspot}
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
532 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
533
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
534 dll_path = malloc(strlen(buf) + 1);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
535 strcpy(dll_path, buf);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
536 Arguments::set_dll_dir(dll_path);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
537
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
538 if (pslash != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
539 pslash = strrchr(buf, '/');
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
540 if (pslash != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
541 *pslash = '\0'; // get rid of /<arch>
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
542 pslash = strrchr(buf, '/');
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
543 if (pslash != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
544 *pslash = '\0'; // get rid of /lib
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
545 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
546 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
547 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
548
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
549 home_path = malloc(strlen(buf) + 1);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
550 strcpy(home_path, buf);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
551 Arguments::set_java_home(home_path);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
552
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
553 if (!set_boot_path('/', ':')) return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
554
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
555 // Where to look for native libraries
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
556
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
557 // On Aix we get the user setting of LIBPATH
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
558 // Eventually, all the library path setting will be done here.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
559 char *ld_library_path;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
560
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
561 // Construct the invariant part of ld_library_path.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
562 ld_library_path = (char *) malloc(sizeof(DEFAULT_LIBPATH));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
563 sprintf(ld_library_path, DEFAULT_LIBPATH);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
564
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
565 // Get the user setting of LIBPATH, and prepended it.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
566 char *v = ::getenv("LIBPATH");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
567 if (v == NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
568 v = "";
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
569 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
570
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
571 char *t = ld_library_path;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
572 // That's +1 for the colon and +1 for the trailing '\0'
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
573 ld_library_path = (char *) malloc(strlen(v) + 1 + strlen(t) + 1);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
574 sprintf(ld_library_path, "%s:%s", v, t);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
575
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
576 Arguments::set_library_path(ld_library_path);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
577
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
578 // Extensions directories
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
579 char* cbuf = malloc(strlen(Arguments::get_java_home()) + sizeof(EXTENSIONS_DIR));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
580 sprintf(cbuf, "%s" EXTENSIONS_DIR, Arguments::get_java_home());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
581 Arguments::set_ext_dirs(cbuf);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
582
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
583 // Endorsed standards default directory.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
584 cbuf = malloc(strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
585 sprintf(cbuf, "%s" ENDORSED_DIR, Arguments::get_java_home());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
586 Arguments::set_endorsed_dirs(cbuf);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
587
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
588 #undef malloc
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
589 #undef DEFAULT_LIBPATH
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
590 #undef EXTENSIONS_DIR
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
591 #undef ENDORSED_DIR
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
592 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
593
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
594 ////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
595 // breakpoint support
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
596
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
597 void os::breakpoint() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
598 BREAKPOINT;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
599 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
600
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
601 extern "C" void breakpoint() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
602 // use debugger to set breakpoint here
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
603 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
604
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
605 ////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
606 // signal support
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
607
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
608 debug_only(static bool signal_sets_initialized = false);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
609 static sigset_t unblocked_sigs, vm_sigs, allowdebug_blocked_sigs;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
610
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
611 bool os::Aix::is_sig_ignored(int sig) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
612 struct sigaction oact;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
613 sigaction(sig, (struct sigaction*)NULL, &oact);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
614 void* ohlr = oact.sa_sigaction ? CAST_FROM_FN_PTR(void*, oact.sa_sigaction)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
615 : CAST_FROM_FN_PTR(void*, oact.sa_handler);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
616 if (ohlr == CAST_FROM_FN_PTR(void*, SIG_IGN))
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
617 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
618 else
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
619 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
620 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
621
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
622 void os::Aix::signal_sets_init() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
623 // Should also have an assertion stating we are still single-threaded.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
624 assert(!signal_sets_initialized, "Already initialized");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
625 // Fill in signals that are necessarily unblocked for all threads in
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
626 // the VM. Currently, we unblock the following signals:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
627 // SHUTDOWN{1,2,3}_SIGNAL: for shutdown hooks support (unless over-ridden
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
628 // by -Xrs (=ReduceSignalUsage));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
629 // BREAK_SIGNAL which is unblocked only by the VM thread and blocked by all
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
630 // other threads. The "ReduceSignalUsage" boolean tells us not to alter
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
631 // the dispositions or masks wrt these signals.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
632 // Programs embedding the VM that want to use the above signals for their
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
633 // own purposes must, at this time, use the "-Xrs" option to prevent
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
634 // interference with shutdown hooks and BREAK_SIGNAL thread dumping.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
635 // (See bug 4345157, and other related bugs).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
636 // In reality, though, unblocking these signals is really a nop, since
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
637 // these signals are not blocked by default.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
638 sigemptyset(&unblocked_sigs);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
639 sigemptyset(&allowdebug_blocked_sigs);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
640 sigaddset(&unblocked_sigs, SIGILL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
641 sigaddset(&unblocked_sigs, SIGSEGV);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
642 sigaddset(&unblocked_sigs, SIGBUS);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
643 sigaddset(&unblocked_sigs, SIGFPE);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
644 sigaddset(&unblocked_sigs, SIGTRAP);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
645 sigaddset(&unblocked_sigs, SIGDANGER);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
646 sigaddset(&unblocked_sigs, SR_signum);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
647
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
648 if (!ReduceSignalUsage) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
649 if (!os::Aix::is_sig_ignored(SHUTDOWN1_SIGNAL)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
650 sigaddset(&unblocked_sigs, SHUTDOWN1_SIGNAL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
651 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN1_SIGNAL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
652 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
653 if (!os::Aix::is_sig_ignored(SHUTDOWN2_SIGNAL)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
654 sigaddset(&unblocked_sigs, SHUTDOWN2_SIGNAL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
655 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN2_SIGNAL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
656 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
657 if (!os::Aix::is_sig_ignored(SHUTDOWN3_SIGNAL)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
658 sigaddset(&unblocked_sigs, SHUTDOWN3_SIGNAL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
659 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN3_SIGNAL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
660 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
661 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
662 // Fill in signals that are blocked by all but the VM thread.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
663 sigemptyset(&vm_sigs);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
664 if (!ReduceSignalUsage)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
665 sigaddset(&vm_sigs, BREAK_SIGNAL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
666 debug_only(signal_sets_initialized = true);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
667 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
668
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
669 // These are signals that are unblocked while a thread is running Java.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
670 // (For some reason, they get blocked by default.)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
671 sigset_t* os::Aix::unblocked_signals() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
672 assert(signal_sets_initialized, "Not initialized");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
673 return &unblocked_sigs;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
674 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
675
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
676 // These are the signals that are blocked while a (non-VM) thread is
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
677 // running Java. Only the VM thread handles these signals.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
678 sigset_t* os::Aix::vm_signals() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
679 assert(signal_sets_initialized, "Not initialized");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
680 return &vm_sigs;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
681 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
682
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
683 // These are signals that are blocked during cond_wait to allow debugger in
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
684 sigset_t* os::Aix::allowdebug_blocked_signals() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
685 assert(signal_sets_initialized, "Not initialized");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
686 return &allowdebug_blocked_sigs;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
687 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
688
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
689 void os::Aix::hotspot_sigmask(Thread* thread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
690
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
691 //Save caller's signal mask before setting VM signal mask
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
692 sigset_t caller_sigmask;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
693 pthread_sigmask(SIG_BLOCK, NULL, &caller_sigmask);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
694
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
695 OSThread* osthread = thread->osthread();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
696 osthread->set_caller_sigmask(caller_sigmask);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
697
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
698 pthread_sigmask(SIG_UNBLOCK, os::Aix::unblocked_signals(), NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
699
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
700 if (!ReduceSignalUsage) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
701 if (thread->is_VM_thread()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
702 // Only the VM thread handles BREAK_SIGNAL ...
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
703 pthread_sigmask(SIG_UNBLOCK, vm_signals(), NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
704 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
705 // ... all other threads block BREAK_SIGNAL
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
706 pthread_sigmask(SIG_BLOCK, vm_signals(), NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
707 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
708 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
709 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
710
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
711 // retrieve memory information.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
712 // Returns false if something went wrong;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
713 // content of pmi undefined in this case.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
714 bool os::Aix::get_meminfo(meminfo_t* pmi) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
715
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
716 assert(pmi, "get_meminfo: invalid parameter");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
717
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
718 memset(pmi, 0, sizeof(meminfo_t));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
719
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
720 if (os::Aix::on_pase()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
721
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
722 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
723 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
724
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
725 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
726
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
727 // On AIX, I use the (dynamically loaded) perfstat library to retrieve memory statistics
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
728 // See:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
729 // http://publib.boulder.ibm.com/infocenter/systems/index.jsp
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
730 // ?topic=/com.ibm.aix.basetechref/doc/basetrf1/perfstat_memtot.htm
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
731 // http://publib.boulder.ibm.com/infocenter/systems/index.jsp
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
732 // ?topic=/com.ibm.aix.files/doc/aixfiles/libperfstat.h.htm
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
733
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
734 perfstat_memory_total_t psmt;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
735 memset (&psmt, '\0', sizeof(psmt));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
736 const int rc = libperfstat::perfstat_memory_total(NULL, &psmt, sizeof(psmt), 1);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
737 if (rc == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
738 fprintf(stderr, "perfstat_memory_total() failed (errno=%d)\n", errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
739 assert(0, "perfstat_memory_total() failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
740 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
741 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
742
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
743 assert(rc == 1, "perfstat_memory_total() - weird return code");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
744
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
745 // excerpt from
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
746 // http://publib.boulder.ibm.com/infocenter/systems/index.jsp
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
747 // ?topic=/com.ibm.aix.files/doc/aixfiles/libperfstat.h.htm
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
748 // The fields of perfstat_memory_total_t:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
749 // u_longlong_t virt_total Total virtual memory (in 4 KB pages).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
750 // u_longlong_t real_total Total real memory (in 4 KB pages).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
751 // u_longlong_t real_free Free real memory (in 4 KB pages).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
752 // u_longlong_t pgsp_total Total paging space (in 4 KB pages).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
753 // u_longlong_t pgsp_free Free paging space (in 4 KB pages).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
754
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
755 pmi->virt_total = psmt.virt_total * 4096;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
756 pmi->real_total = psmt.real_total * 4096;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
757 pmi->real_free = psmt.real_free * 4096;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
758 pmi->pgsp_total = psmt.pgsp_total * 4096;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
759 pmi->pgsp_free = psmt.pgsp_free * 4096;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
760
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
761 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
762
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
763 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
764 } // end os::Aix::get_meminfo
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
765
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
766 // Retrieve global cpu information.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
767 // Returns false if something went wrong;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
768 // the content of pci is undefined in this case.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
769 bool os::Aix::get_cpuinfo(cpuinfo_t* pci) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
770 assert(pci, "get_cpuinfo: invalid parameter");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
771 memset(pci, 0, sizeof(cpuinfo_t));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
772
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
773 perfstat_cpu_total_t psct;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
774 memset (&psct, '\0', sizeof(psct));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
775
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
776 if (-1 == libperfstat::perfstat_cpu_total(NULL, &psct, sizeof(perfstat_cpu_total_t), 1)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
777 fprintf(stderr, "perfstat_cpu_total() failed (errno=%d)\n", errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
778 assert(0, "perfstat_cpu_total() failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
779 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
780 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
781
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
782 // global cpu information
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
783 strcpy (pci->description, psct.description);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
784 pci->processorHZ = psct.processorHZ;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
785 pci->ncpus = psct.ncpus;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
786 os::Aix::_logical_cpus = psct.ncpus;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
787 for (int i = 0; i < 3; i++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
788 pci->loadavg[i] = (double) psct.loadavg[i] / (1 << SBITS);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
789 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
790
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
791 // get the processor version from _system_configuration
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
792 switch (_system_configuration.version) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
793 case PV_7:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
794 strcpy(pci->version, "Power PC 7");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
795 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
796 case PV_6_1:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
797 strcpy(pci->version, "Power PC 6 DD1.x");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
798 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
799 case PV_6:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
800 strcpy(pci->version, "Power PC 6");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
801 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
802 case PV_5:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
803 strcpy(pci->version, "Power PC 5");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
804 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
805 case PV_5_2:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
806 strcpy(pci->version, "Power PC 5_2");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
807 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
808 case PV_5_3:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
809 strcpy(pci->version, "Power PC 5_3");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
810 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
811 case PV_5_Compat:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
812 strcpy(pci->version, "PV_5_Compat");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
813 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
814 case PV_6_Compat:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
815 strcpy(pci->version, "PV_6_Compat");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
816 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
817 case PV_7_Compat:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
818 strcpy(pci->version, "PV_7_Compat");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
819 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
820 default:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
821 strcpy(pci->version, "unknown");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
822 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
823
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
824 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
825
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
826 } //end os::Aix::get_cpuinfo
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
827
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
828 //////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
829 // detecting pthread library
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
830
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
831 void os::Aix::libpthread_init() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
832 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
833 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
834
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
835 //////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
836 // create new thread
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
837
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
838 // Thread start routine for all newly created threads
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
839 static void *java_start(Thread *thread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
840
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
841 // find out my own stack dimensions
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
842 {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
843 // actually, this should do exactly the same as thread->record_stack_base_and_size...
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
844 address base = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
845 size_t size = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
846 query_stack_dimensions(&base, &size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
847 thread->set_stack_base(base);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
848 thread->set_stack_size(size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
849 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
850
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
851 // Do some sanity checks.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
852 CHECK_CURRENT_STACK_PTR(thread->stack_base(), thread->stack_size());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
853
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
854 // Try to randomize the cache line index of hot stack frames.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
855 // This helps when threads of the same stack traces evict each other's
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
856 // cache lines. The threads can be either from the same JVM instance, or
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
857 // from different JVM instances. The benefit is especially true for
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
858 // processors with hyperthreading technology.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
859
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
860 static int counter = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
861 int pid = os::current_process_id();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
862 alloca(((pid ^ counter++) & 7) * 128);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
863
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
864 ThreadLocalStorage::set_thread(thread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
865
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
866 OSThread* osthread = thread->osthread();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
867
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
868 // thread_id is kernel thread id (similar to Solaris LWP id)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
869 osthread->set_thread_id(os::Aix::gettid());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
870
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
871 // initialize signal mask for this thread
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
872 os::Aix::hotspot_sigmask(thread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
873
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
874 // initialize floating point control register
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
875 os::Aix::init_thread_fpu_state();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
876
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
877 assert(osthread->get_state() == RUNNABLE, "invalid os thread state");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
878
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
879 // call one more level start routine
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
880 thread->run();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
881
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
882 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
883 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
884
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
885 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
886
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
887 // We want the whole function to be synchronized.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
888 ThreadCritical cs;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
889
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
890 assert(thread->osthread() == NULL, "caller responsible");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
891
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
892 // Allocate the OSThread object
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
893 OSThread* osthread = new OSThread(NULL, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
894 if (osthread == NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
895 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
896 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
897
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
898 // set the correct thread state
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
899 osthread->set_thread_type(thr_type);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
900
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
901 // Initial state is ALLOCATED but not INITIALIZED
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
902 osthread->set_state(ALLOCATED);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
903
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
904 thread->set_osthread(osthread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
905
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
906 // init thread attributes
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
907 pthread_attr_t attr;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
908 pthread_attr_init(&attr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
909 guarantee(pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED) == 0, "???");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
910
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
911 // Make sure we run in 1:1 kernel-user-thread mode.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
912 if (os::Aix::on_aix()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
913 guarantee(pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM) == 0, "???");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
914 guarantee(pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED) == 0, "???");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
915 } // end: aix
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
916
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
917 // Start in suspended state, and in os::thread_start, wake the thread up.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
918 guarantee(pthread_attr_setsuspendstate_np(&attr, PTHREAD_CREATE_SUSPENDED_NP) == 0, "???");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
919
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
920 // calculate stack size if it's not specified by caller
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
921 if (os::Aix::supports_variable_stack_size()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
922 if (stack_size == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
923 stack_size = os::Aix::default_stack_size(thr_type);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
924
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
925 switch (thr_type) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
926 case os::java_thread:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
927 // Java threads use ThreadStackSize whose default value can be changed with the flag -Xss.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
928 assert(JavaThread::stack_size_at_create() > 0, "this should be set");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
929 stack_size = JavaThread::stack_size_at_create();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
930 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
931 case os::compiler_thread:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
932 if (CompilerThreadStackSize > 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
933 stack_size = (size_t)(CompilerThreadStackSize * K);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
934 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
935 } // else fall through:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
936 // use VMThreadStackSize if CompilerThreadStackSize is not defined
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
937 case os::vm_thread:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
938 case os::pgc_thread:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
939 case os::cgc_thread:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
940 case os::watcher_thread:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
941 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
942 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
943 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
944 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
945
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
946 stack_size = MAX2(stack_size, os::Aix::min_stack_allowed);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
947 pthread_attr_setstacksize(&attr, stack_size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
948 } //else let thread_create() pick the default value (96 K on AIX)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
949
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
950 pthread_t tid;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
951 int ret = pthread_create(&tid, &attr, (void* (*)(void*)) java_start, thread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
952
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
953 pthread_attr_destroy(&attr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
954
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
955 if (ret != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
956 if (PrintMiscellaneous && (Verbose || WizardMode)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
957 perror("pthread_create()");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
958 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
959 // Need to clean up stuff we've allocated so far
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
960 thread->set_osthread(NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
961 delete osthread;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
962 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
963 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
964
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
965 // Store pthread info into the OSThread
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
966 osthread->set_pthread_id(tid);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
967
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
968 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
969 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
970
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
971 /////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
972 // attach existing thread
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
973
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
974 // bootstrap the main thread
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
975 bool os::create_main_thread(JavaThread* thread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
976 assert(os::Aix::_main_thread == pthread_self(), "should be called inside main thread");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
977 return create_attached_thread(thread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
978 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
979
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
980 bool os::create_attached_thread(JavaThread* thread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
981 #ifdef ASSERT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
982 thread->verify_not_published();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
983 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
984
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
985 // Allocate the OSThread object
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
986 OSThread* osthread = new OSThread(NULL, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
987
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
988 if (osthread == NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
989 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
990 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
991
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
992 // Store pthread info into the OSThread
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
993 osthread->set_thread_id(os::Aix::gettid());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
994 osthread->set_pthread_id(::pthread_self());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
995
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
996 // initialize floating point control register
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
997 os::Aix::init_thread_fpu_state();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
998
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
999 // some sanity checks
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1000 CHECK_CURRENT_STACK_PTR(thread->stack_base(), thread->stack_size());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1001
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1002 // Initial thread state is RUNNABLE
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1003 osthread->set_state(RUNNABLE);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1004
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1005 thread->set_osthread(osthread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1006
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1007 if (UseNUMA) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1008 int lgrp_id = os::numa_get_group_id();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1009 if (lgrp_id != -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1010 thread->set_lgrp_id(lgrp_id);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1011 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1012 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1013
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1014 // initialize signal mask for this thread
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1015 // and save the caller's signal mask
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1016 os::Aix::hotspot_sigmask(thread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1017
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1018 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1019 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1020
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1021 void os::pd_start_thread(Thread* thread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1022 int status = pthread_continue_np(thread->osthread()->pthread_id());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1023 assert(status == 0, "thr_continue failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1024 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1025
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1026 // Free OS resources related to the OSThread
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1027 void os::free_thread(OSThread* osthread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1028 assert(osthread != NULL, "osthread not set");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1029
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1030 if (Thread::current()->osthread() == osthread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1031 // Restore caller's signal mask
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1032 sigset_t sigmask = osthread->caller_sigmask();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1033 pthread_sigmask(SIG_SETMASK, &sigmask, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1034 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1035
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1036 delete osthread;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1037 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1038
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1039 //////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1040 // thread local storage
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1041
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1042 int os::allocate_thread_local_storage() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1043 pthread_key_t key;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1044 int rslt = pthread_key_create(&key, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1045 assert(rslt == 0, "cannot allocate thread local storage");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1046 return (int)key;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1047 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1048
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1049 // Note: This is currently not used by VM, as we don't destroy TLS key
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1050 // on VM exit.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1051 void os::free_thread_local_storage(int index) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1052 int rslt = pthread_key_delete((pthread_key_t)index);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1053 assert(rslt == 0, "invalid index");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1054 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1055
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1056 void os::thread_local_storage_at_put(int index, void* value) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1057 int rslt = pthread_setspecific((pthread_key_t)index, value);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1058 assert(rslt == 0, "pthread_setspecific failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1059 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1060
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1061 extern "C" Thread* get_thread() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1062 return ThreadLocalStorage::thread();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1063 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1064
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1065 ////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1066 // time support
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1067
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1068 // Time since start-up in seconds to a fine granularity.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1069 // Used by VMSelfDestructTimer and the MemProfiler.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1070 double os::elapsedTime() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1071 return (double)(os::elapsed_counter()) * 0.000001;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1072 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1073
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1074 jlong os::elapsed_counter() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1075 timeval time;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1076 int status = gettimeofday(&time, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1077 return jlong(time.tv_sec) * 1000 * 1000 + jlong(time.tv_usec) - initial_time_count;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1078 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1079
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1080 jlong os::elapsed_frequency() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1081 return (1000 * 1000);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1082 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1083
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1084 // For now, we say that linux does not support vtime. I have no idea
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1085 // whether it can actually be made to (DLD, 9/13/05).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1086
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1087 bool os::supports_vtime() { return false; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1088 bool os::enable_vtime() { return false; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1089 bool os::vtime_enabled() { return false; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1090 double os::elapsedVTime() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1091 // better than nothing, but not much
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1092 return elapsedTime();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1093 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1094
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1095 jlong os::javaTimeMillis() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1096 timeval time;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1097 int status = gettimeofday(&time, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1098 assert(status != -1, "aix error at gettimeofday()");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1099 return jlong(time.tv_sec) * 1000 + jlong(time.tv_usec / 1000);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1100 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1101
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1102 // We need to manually declare mread_real_time,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1103 // because IBM didn't provide a prototype in time.h.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1104 // (they probably only ever tested in C, not C++)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1105 extern "C"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1106 int mread_real_time(timebasestruct_t *t, size_t size_of_timebasestruct_t);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1107
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1108 jlong os::javaTimeNanos() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1109 if (os::Aix::on_pase()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1110 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1111 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1112 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1113 else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1114 // On AIX use the precision of processors real time clock
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1115 // or time base registers.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1116 timebasestruct_t time;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1117 int rc;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1118
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1119 // If the CPU has a time register, it will be used and
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1120 // we have to convert to real time first. After convertion we have following data:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1121 // time.tb_high [seconds since 00:00:00 UTC on 1.1.1970]
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1122 // time.tb_low [nanoseconds after the last full second above]
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1123 // We better use mread_real_time here instead of read_real_time
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1124 // to ensure that we will get a monotonic increasing time.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1125 if (mread_real_time(&time, TIMEBASE_SZ) != RTC_POWER) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1126 rc = time_base_to_time(&time, TIMEBASE_SZ);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1127 assert(rc != -1, "aix error at time_base_to_time()");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1128 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1129 return jlong(time.tb_high) * (1000 * 1000 * 1000) + jlong(time.tb_low);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1130 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1131 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1132
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1133 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1134 {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1135 // gettimeofday - based on time in seconds since the Epoch thus does not wrap
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1136 info_ptr->max_value = ALL_64_BITS;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1137
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1138 // gettimeofday is a real time clock so it skips
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1139 info_ptr->may_skip_backward = true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1140 info_ptr->may_skip_forward = true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1141 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1142
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1143 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1144 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1145
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1146 // Return the real, user, and system times in seconds from an
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1147 // arbitrary fixed point in the past.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1148 bool os::getTimesSecs(double* process_real_time,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1149 double* process_user_time,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1150 double* process_system_time) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1151 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1152 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1153 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1154
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1155
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1156 char * os::local_time_string(char *buf, size_t buflen) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1157 struct tm t;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1158 time_t long_time;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1159 time(&long_time);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1160 localtime_r(&long_time, &t);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1161 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1162 t.tm_year + 1900, t.tm_mon + 1, t.tm_mday,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1163 t.tm_hour, t.tm_min, t.tm_sec);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1164 return buf;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1165 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1166
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1167 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1168 return localtime_r(clock, res);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1169 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1170
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1171 ////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1172 // runtime exit support
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1173
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1174 // Note: os::shutdown() might be called very early during initialization, or
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1175 // called from signal handler. Before adding something to os::shutdown(), make
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1176 // sure it is async-safe and can handle partially initialized VM.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1177 void os::shutdown() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1178
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1179 // allow PerfMemory to attempt cleanup of any persistent resources
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1180 perfMemory_exit();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1181
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1182 // needs to remove object in file system
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1183 AttachListener::abort();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1184
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1185 // flush buffered output, finish log files
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1186 ostream_abort();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1187
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1188 // Check for abort hook
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1189 abort_hook_t abort_hook = Arguments::abort_hook();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1190 if (abort_hook != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1191 abort_hook();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1192 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1193
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1194 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1195
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1196 // Note: os::abort() might be called very early during initialization, or
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1197 // called from signal handler. Before adding something to os::abort(), make
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1198 // sure it is async-safe and can handle partially initialized VM.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1199 void os::abort(bool dump_core) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1200 os::shutdown();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1201 if (dump_core) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1202 #ifndef PRODUCT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1203 fdStream out(defaultStream::output_fd());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1204 out.print_raw("Current thread is ");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1205 char buf[16];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1206 jio_snprintf(buf, sizeof(buf), UINTX_FORMAT, os::current_thread_id());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1207 out.print_raw_cr(buf);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1208 out.print_raw_cr("Dumping core ...");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1209 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1210 ::abort(); // dump core
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1211 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1212
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1213 ::exit(1);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1214 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1215
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1216 // Die immediately, no exit hook, no abort hook, no cleanup.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1217 void os::die() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1218 ::abort();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1219 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1220
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1221 // Unused on Aix for now.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1222 void os::set_error_file(const char *logfile) {}
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1223
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1224
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1225 // This method is a copy of JDK's sysGetLastErrorString
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1226 // from src/solaris/hpi/src/system_md.c
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1227
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1228 size_t os::lasterror(char *buf, size_t len) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1229
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1230 if (errno == 0) return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1231
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1232 const char *s = ::strerror(errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1233 size_t n = ::strlen(s);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1234 if (n >= len) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1235 n = len - 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1236 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1237 ::strncpy(buf, s, n);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1238 buf[n] = '\0';
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1239 return n;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1240 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1241
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1242 intx os::current_thread_id() { return (intx)pthread_self(); }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1243 int os::current_process_id() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1244
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1245 // This implementation returns a unique pid, the pid of the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1246 // launcher thread that starts the vm 'process'.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1247
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1248 // Under POSIX, getpid() returns the same pid as the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1249 // launcher thread rather than a unique pid per thread.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1250 // Use gettid() if you want the old pre NPTL behaviour.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1251
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1252 // if you are looking for the result of a call to getpid() that
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1253 // returns a unique pid for the calling thread, then look at the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1254 // OSThread::thread_id() method in osThread_linux.hpp file
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1255
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1256 return (int)(_initial_pid ? _initial_pid : getpid());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1257 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1258
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1259 // DLL functions
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1260
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1261 const char* os::dll_file_extension() { return ".so"; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1262
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1263 // This must be hard coded because it's the system's temporary
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1264 // directory not the java application's temp directory, ala java.io.tmpdir.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1265 const char* os::get_temp_directory() { return "/tmp"; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1266
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1267 static bool file_exists(const char* filename) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1268 struct stat statbuf;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1269 if (filename == NULL || strlen(filename) == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1270 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1271 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1272 return os::stat(filename, &statbuf) == 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1273 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1274
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1275 bool os::dll_build_name(char* buffer, size_t buflen,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1276 const char* pname, const char* fname) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1277 bool retval = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1278 // Copied from libhpi
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1279 const size_t pnamelen = pname ? strlen(pname) : 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1280
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1281 // Return error on buffer overflow.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1282 if (pnamelen + strlen(fname) + 10 > (size_t) buflen) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1283 *buffer = '\0';
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1284 return retval;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1285 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1286
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1287 if (pnamelen == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1288 snprintf(buffer, buflen, "lib%s.so", fname);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1289 retval = true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1290 } else if (strchr(pname, *os::path_separator()) != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1291 int n;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1292 char** pelements = split_path(pname, &n);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1293 for (int i = 0; i < n; i++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1294 // Really shouldn't be NULL, but check can't hurt
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1295 if (pelements[i] == NULL || strlen(pelements[i]) == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1296 continue; // skip the empty path values
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1297 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1298 snprintf(buffer, buflen, "%s/lib%s.so", pelements[i], fname);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1299 if (file_exists(buffer)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1300 retval = true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1301 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1302 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1303 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1304 // release the storage
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1305 for (int i = 0; i < n; i++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1306 if (pelements[i] != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1307 FREE_C_HEAP_ARRAY(char, pelements[i], mtInternal);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1308 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1309 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1310 if (pelements != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1311 FREE_C_HEAP_ARRAY(char*, pelements, mtInternal);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1312 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1313 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1314 snprintf(buffer, buflen, "%s/lib%s.so", pname, fname);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1315 retval = true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1316 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1317 return retval;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1318 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1319
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1320 // Check if addr is inside libjvm.so.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1321 bool os::address_is_in_vm(address addr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1322
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1323 // Input could be a real pc or a function pointer literal. The latter
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1324 // would be a function descriptor residing in the data segment of a module.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1325
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1326 const LoadedLibraryModule* lib = LoadedLibraries::find_for_text_address(addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1327 if (lib) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1328 if (strcmp(lib->get_shortname(), "libjvm.so") == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1329 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1330 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1331 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1332 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1333 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1334 lib = LoadedLibraries::find_for_data_address(addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1335 if (lib) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1336 if (strcmp(lib->get_shortname(), "libjvm.so") == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1337 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1338 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1339 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1340 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1341 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1342 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1343 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1344 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1345 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1346
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1347 // Resolve an AIX function descriptor literal to a code pointer.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1348 // If the input is a valid code pointer to a text segment of a loaded module,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1349 // it is returned unchanged.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1350 // If the input is a valid AIX function descriptor, it is resolved to the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1351 // code entry point.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1352 // If the input is neither a valid function descriptor nor a valid code pointer,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1353 // NULL is returned.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1354 static address resolve_function_descriptor_to_code_pointer(address p) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1355
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1356 const LoadedLibraryModule* lib = LoadedLibraries::find_for_text_address(p);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1357 if (lib) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1358 // its a real code pointer
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1359 return p;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1360 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1361 lib = LoadedLibraries::find_for_data_address(p);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1362 if (lib) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1363 // pointer to data segment, potential function descriptor
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1364 address code_entry = (address)(((FunctionDescriptor*)p)->entry());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1365 if (LoadedLibraries::find_for_text_address(code_entry)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1366 // Its a function descriptor
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1367 return code_entry;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1368 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1369 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1370 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1371 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1372 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1373
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1374 bool os::dll_address_to_function_name(address addr, char *buf,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1375 int buflen, int *offset) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1376 if (offset) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1377 *offset = -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1378 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1379 if (buf) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1380 buf[0] = '\0';
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1381 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1382
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1383 // Resolve function ptr literals first.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1384 addr = resolve_function_descriptor_to_code_pointer(addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1385 if (!addr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1386 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1387 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1388
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1389 // Go through Decoder::decode to call getFuncName which reads the name from the traceback table.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1390 return Decoder::decode(addr, buf, buflen, offset);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1391 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1392
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1393 static int getModuleName(codeptr_t pc, // [in] program counter
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1394 char* p_name, size_t namelen, // [out] optional: function name
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1395 char* p_errmsg, size_t errmsglen // [out] optional: user provided buffer for error messages
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1396 ) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1397
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1398 // initialize output parameters
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1399 if (p_name && namelen > 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1400 *p_name = '\0';
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1401 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1402 if (p_errmsg && errmsglen > 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1403 *p_errmsg = '\0';
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1404 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1405
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1406 const LoadedLibraryModule* const lib = LoadedLibraries::find_for_text_address((address)pc);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1407 if (lib) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1408 if (p_name && namelen > 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1409 sprintf(p_name, "%.*s", namelen, lib->get_shortname());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1410 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1411 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1412 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1413
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1414 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1415 fprintf(stderr, "pc outside any module");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1416 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1417
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1418 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1419
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1420 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1421
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1422 bool os::dll_address_to_library_name(address addr, char* buf,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1423 int buflen, int* offset) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1424 if (offset) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1425 *offset = -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1426 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1427 if (buf) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1428 buf[0] = '\0';
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1429 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1430
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1431 // Resolve function ptr literals first.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1432 addr = resolve_function_descriptor_to_code_pointer(addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1433 if (!addr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1434 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1435 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1436
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1437 if (::getModuleName((codeptr_t) addr, buf, buflen, 0, 0) == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1438 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1439 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1440 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1441 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1442
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1443 // Loads .dll/.so and in case of error it checks if .dll/.so was built
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1444 // for the same architecture as Hotspot is running on
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1445 void *os::dll_load(const char *filename, char *ebuf, int ebuflen) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1446
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1447 if (ebuf && ebuflen > 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1448 ebuf[0] = '\0';
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1449 ebuf[ebuflen - 1] = '\0';
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1450 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1451
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1452 if (!filename || strlen(filename) == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1453 ::strncpy(ebuf, "dll_load: empty filename specified", ebuflen - 1);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1454 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1455 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1456
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1457 // RTLD_LAZY is currently not implemented. The dl is loaded immediately with all its dependants.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1458 void * result= ::dlopen(filename, RTLD_LAZY);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1459 if (result != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1460 // Reload dll cache. Don't do this in signal handling.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1461 LoadedLibraries::reload();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1462 return result;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1463 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1464 // error analysis when dlopen fails
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1465 const char* const error_report = ::dlerror();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1466 if (error_report && ebuf && ebuflen > 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1467 snprintf(ebuf, ebuflen - 1, "%s, LIBPATH=%s, LD_LIBRARY_PATH=%s : %s",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1468 filename, ::getenv("LIBPATH"), ::getenv("LD_LIBRARY_PATH"), error_report);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1469 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1470 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1471 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1472 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1473
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1474 // Glibc-2.0 libdl is not MT safe. If you are building with any glibc,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1475 // chances are you might want to run the generated bits against glibc-2.0
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1476 // libdl.so, so always use locking for any version of glibc.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1477 void* os::dll_lookup(void* handle, const char* name) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1478 pthread_mutex_lock(&dl_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1479 void* res = dlsym(handle, name);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1480 pthread_mutex_unlock(&dl_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1481 return res;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1482 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1483
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1484 void os::print_dll_info(outputStream *st) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1485 st->print_cr("Dynamic libraries:");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1486 LoadedLibraries::print(st);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1487 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1488
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1489 void os::print_os_info(outputStream* st) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1490 st->print("OS:");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1491
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1492 st->print("uname:");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1493 struct utsname name;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1494 uname(&name);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1495 st->print(name.sysname); st->print(" ");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1496 st->print(name.nodename); st->print(" ");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1497 st->print(name.release); st->print(" ");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1498 st->print(name.version); st->print(" ");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1499 st->print(name.machine);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1500 st->cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1501
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1502 // rlimit
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1503 st->print("rlimit:");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1504 struct rlimit rlim;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1505
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1506 st->print(" STACK ");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1507 getrlimit(RLIMIT_STACK, &rlim);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1508 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1509 else st->print("%uk", rlim.rlim_cur >> 10);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1510
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1511 st->print(", CORE ");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1512 getrlimit(RLIMIT_CORE, &rlim);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1513 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1514 else st->print("%uk", rlim.rlim_cur >> 10);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1515
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1516 st->print(", NPROC ");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1517 st->print("%d", sysconf(_SC_CHILD_MAX));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1518
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1519 st->print(", NOFILE ");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1520 getrlimit(RLIMIT_NOFILE, &rlim);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1521 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1522 else st->print("%d", rlim.rlim_cur);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1523
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1524 st->print(", AS ");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1525 getrlimit(RLIMIT_AS, &rlim);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1526 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1527 else st->print("%uk", rlim.rlim_cur >> 10);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1528
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1529 // Print limits on DATA, because it limits the C-heap.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1530 st->print(", DATA ");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1531 getrlimit(RLIMIT_DATA, &rlim);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1532 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1533 else st->print("%uk", rlim.rlim_cur >> 10);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1534 st->cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1535
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1536 // load average
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1537 st->print("load average:");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1538 double loadavg[3] = {-1.L, -1.L, -1.L};
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1539 os::loadavg(loadavg, 3);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1540 st->print("%0.02f %0.02f %0.02f", loadavg[0], loadavg[1], loadavg[2]);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1541 st->cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1542 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1543
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1544 void os::print_memory_info(outputStream* st) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1545
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1546 st->print_cr("Memory:");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1547
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1548 st->print_cr(" default page size: %s", describe_pagesize(os::vm_page_size()));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1549 st->print_cr(" default stack page size: %s", describe_pagesize(os::vm_page_size()));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1550 st->print_cr(" default shm page size: %s", describe_pagesize(os::Aix::shm_default_page_size()));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1551 st->print_cr(" can use 64K pages dynamically: %s", (os::Aix::can_use_64K_pages() ? "yes" :"no"));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1552 st->print_cr(" can use 16M pages dynamically: %s", (os::Aix::can_use_16M_pages() ? "yes" :"no"));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1553 if (g_multipage_error != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1554 st->print_cr(" multipage error: %d", g_multipage_error);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1555 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1556
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1557 // print out LDR_CNTRL because it affects the default page sizes
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1558 const char* const ldr_cntrl = ::getenv("LDR_CNTRL");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1559 st->print_cr(" LDR_CNTRL=%s.", ldr_cntrl ? ldr_cntrl : "<unset>");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1560
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1561 const char* const extshm = ::getenv("EXTSHM");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1562 st->print_cr(" EXTSHM=%s.", extshm ? extshm : "<unset>");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1563
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1564 // Call os::Aix::get_meminfo() to retrieve memory statistics.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1565 os::Aix::meminfo_t mi;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1566 if (os::Aix::get_meminfo(&mi)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1567 char buffer[256];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1568 if (os::Aix::on_aix()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1569 jio_snprintf(buffer, sizeof(buffer),
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1570 " physical total : %llu\n"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1571 " physical free : %llu\n"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1572 " swap total : %llu\n"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1573 " swap free : %llu\n",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1574 mi.real_total,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1575 mi.real_free,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1576 mi.pgsp_total,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1577 mi.pgsp_free);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1578 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1579 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1580 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1581 st->print_raw(buffer);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1582 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1583 st->print_cr(" (no more information available)");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1584 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1585 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1586
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1587 void os::pd_print_cpu_info(outputStream* st) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1588 // cpu
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1589 st->print("CPU:");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1590 st->print("total %d", os::processor_count());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1591 // It's not safe to query number of active processors after crash
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1592 // st->print("(active %d)", os::active_processor_count());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1593 st->print(" %s", VM_Version::cpu_features());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1594 st->cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1595 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1596
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1597 void os::print_siginfo(outputStream* st, void* siginfo) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1598 // Use common posix version.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1599 os::Posix::print_siginfo_brief(st, (const siginfo_t*) siginfo);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1600 st->cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1601 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1602
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1603
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1604 static void print_signal_handler(outputStream* st, int sig,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1605 char* buf, size_t buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1606
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1607 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1608 st->print_cr("Signal Handlers:");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1609 print_signal_handler(st, SIGSEGV, buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1610 print_signal_handler(st, SIGBUS , buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1611 print_signal_handler(st, SIGFPE , buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1612 print_signal_handler(st, SIGPIPE, buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1613 print_signal_handler(st, SIGXFSZ, buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1614 print_signal_handler(st, SIGILL , buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1615 print_signal_handler(st, INTERRUPT_SIGNAL, buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1616 print_signal_handler(st, SR_signum, buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1617 print_signal_handler(st, SHUTDOWN1_SIGNAL, buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1618 print_signal_handler(st, SHUTDOWN2_SIGNAL , buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1619 print_signal_handler(st, SHUTDOWN3_SIGNAL , buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1620 print_signal_handler(st, BREAK_SIGNAL, buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1621 print_signal_handler(st, SIGTRAP, buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1622 print_signal_handler(st, SIGDANGER, buf, buflen);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1623 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1624
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1625 static char saved_jvm_path[MAXPATHLEN] = {0};
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1626
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1627 // Find the full path to the current module, libjvm.so or libjvm_g.so
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1628 void os::jvm_path(char *buf, jint buflen) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1629 // Error checking.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1630 if (buflen < MAXPATHLEN) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1631 assert(false, "must use a large-enough buffer");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1632 buf[0] = '\0';
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1633 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1634 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1635 // Lazy resolve the path to current module.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1636 if (saved_jvm_path[0] != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1637 strcpy(buf, saved_jvm_path);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1638 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1639 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1640
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1641 Dl_info dlinfo;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1642 int ret = dladdr(CAST_FROM_FN_PTR(void *, os::jvm_path), &dlinfo);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1643 assert(ret != 0, "cannot locate libjvm");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1644 char* rp = realpath((char *)dlinfo.dli_fname, buf);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1645 assert(rp != NULL, "error in realpath(): maybe the 'path' argument is too long?");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1646
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1647 strcpy(saved_jvm_path, buf);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1648 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1649
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1650 void os::print_jni_name_prefix_on(outputStream* st, int args_size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1651 // no prefix required, not even "_"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1652 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1653
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1654 void os::print_jni_name_suffix_on(outputStream* st, int args_size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1655 // no suffix required
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1656 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1657
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1658 ////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1659 // sun.misc.Signal support
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1660
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1661 static volatile jint sigint_count = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1662
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1663 static void
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1664 UserHandler(int sig, void *siginfo, void *context) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1665 // 4511530 - sem_post is serialized and handled by the manager thread. When
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1666 // the program is interrupted by Ctrl-C, SIGINT is sent to every thread. We
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1667 // don't want to flood the manager thread with sem_post requests.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1668 if (sig == SIGINT && Atomic::add(1, &sigint_count) > 1)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1669 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1670
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1671 // Ctrl-C is pressed during error reporting, likely because the error
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1672 // handler fails to abort. Let VM die immediately.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1673 if (sig == SIGINT && is_error_reported()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1674 os::die();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1675 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1676
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1677 os::signal_notify(sig);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1678 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1679
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1680 void* os::user_handler() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1681 return CAST_FROM_FN_PTR(void*, UserHandler);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1682 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1683
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1684 extern "C" {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1685 typedef void (*sa_handler_t)(int);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1686 typedef void (*sa_sigaction_t)(int, siginfo_t *, void *);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1687 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1688
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1689 void* os::signal(int signal_number, void* handler) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1690 struct sigaction sigAct, oldSigAct;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1691
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1692 sigfillset(&(sigAct.sa_mask));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1693
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1694 // Do not block out synchronous signals in the signal handler.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1695 // Blocking synchronous signals only makes sense if you can really
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1696 // be sure that those signals won't happen during signal handling,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1697 // when the blocking applies. Normal signal handlers are lean and
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1698 // do not cause signals. But our signal handlers tend to be "risky"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1699 // - secondary SIGSEGV, SIGILL, SIGBUS' may and do happen.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1700 // On AIX, PASE there was a case where a SIGSEGV happened, followed
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1701 // by a SIGILL, which was blocked due to the signal mask. The process
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1702 // just hung forever. Better to crash from a secondary signal than to hang.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1703 sigdelset(&(sigAct.sa_mask), SIGSEGV);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1704 sigdelset(&(sigAct.sa_mask), SIGBUS);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1705 sigdelset(&(sigAct.sa_mask), SIGILL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1706 sigdelset(&(sigAct.sa_mask), SIGFPE);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1707 sigdelset(&(sigAct.sa_mask), SIGTRAP);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1708
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1709 sigAct.sa_flags = SA_RESTART|SA_SIGINFO;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1710
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1711 sigAct.sa_handler = CAST_TO_FN_PTR(sa_handler_t, handler);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1712
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1713 if (sigaction(signal_number, &sigAct, &oldSigAct)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1714 // -1 means registration failed
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1715 return (void *)-1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1716 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1717
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1718 return CAST_FROM_FN_PTR(void*, oldSigAct.sa_handler);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1719 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1720
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1721 void os::signal_raise(int signal_number) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1722 ::raise(signal_number);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1723 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1724
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1725 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1726 // The following code is moved from os.cpp for making this
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1727 // code platform specific, which it is by its very nature.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1728 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1729
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1730 // Will be modified when max signal is changed to be dynamic
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1731 int os::sigexitnum_pd() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1732 return NSIG;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1733 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1734
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1735 // a counter for each possible signal value
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1736 static volatile jint pending_signals[NSIG+1] = { 0 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1737
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1738 // Linux(POSIX) specific hand shaking semaphore.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1739 static sem_t sig_sem;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1740
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1741 void os::signal_init_pd() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1742 // Initialize signal structures
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1743 ::memset((void*)pending_signals, 0, sizeof(pending_signals));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1744
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1745 // Initialize signal semaphore
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1746 int rc = ::sem_init(&sig_sem, 0, 0);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1747 guarantee(rc != -1, "sem_init failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1748 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1749
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1750 void os::signal_notify(int sig) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1751 Atomic::inc(&pending_signals[sig]);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1752 ::sem_post(&sig_sem);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1753 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1754
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1755 static int check_pending_signals(bool wait) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1756 Atomic::store(0, &sigint_count);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1757 for (;;) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1758 for (int i = 0; i < NSIG + 1; i++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1759 jint n = pending_signals[i];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1760 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1761 return i;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1762 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1763 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1764 if (!wait) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1765 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1766 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1767 JavaThread *thread = JavaThread::current();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1768 ThreadBlockInVM tbivm(thread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1769
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1770 bool threadIsSuspended;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1771 do {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1772 thread->set_suspend_equivalent();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1773 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1774
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1775 ::sem_wait(&sig_sem);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1776
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1777 // were we externally suspended while we were waiting?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1778 threadIsSuspended = thread->handle_special_suspend_equivalent_condition();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1779 if (threadIsSuspended) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1780 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1781 // The semaphore has been incremented, but while we were waiting
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1782 // another thread suspended us. We don't want to continue running
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1783 // while suspended because that would surprise the thread that
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1784 // suspended us.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1785 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1786 ::sem_post(&sig_sem);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1787
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1788 thread->java_suspend_self();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1789 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1790 } while (threadIsSuspended);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1791 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1792 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1793
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1794 int os::signal_lookup() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1795 return check_pending_signals(false);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1796 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1797
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1798 int os::signal_wait() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1799 return check_pending_signals(true);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1800 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1801
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1802 ////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1803 // Virtual Memory
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1804
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1805 // AddrRange describes an immutable address range
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1806 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1807 // This is a helper class for the 'shared memory bookkeeping' below.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1808 class AddrRange {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1809 friend class ShmBkBlock;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1810
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1811 char* _start;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1812 size_t _size;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1813
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1814 public:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1815
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1816 AddrRange(char* start, size_t size)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1817 : _start(start), _size(size)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1818 {}
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1819
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1820 AddrRange(const AddrRange& r)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1821 : _start(r.start()), _size(r.size())
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1822 {}
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1823
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1824 char* start() const { return _start; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1825 size_t size() const { return _size; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1826 char* end() const { return _start + _size; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1827 bool is_empty() const { return _size == 0 ? true : false; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1828
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1829 static AddrRange empty_range() { return AddrRange(NULL, 0); }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1830
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1831 bool contains(const char* p) const {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1832 return start() <= p && end() > p;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1833 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1834
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1835 bool contains(const AddrRange& range) const {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1836 return start() <= range.start() && end() >= range.end();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1837 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1838
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1839 bool intersects(const AddrRange& range) const {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1840 return (range.start() <= start() && range.end() > start()) ||
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1841 (range.start() < end() && range.end() >= end()) ||
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1842 contains(range);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1843 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1844
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1845 bool is_same_range(const AddrRange& range) const {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1846 return start() == range.start() && size() == range.size();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1847 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1848
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1849 // return the closest inside range consisting of whole pages
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1850 AddrRange find_closest_aligned_range(size_t pagesize) const {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1851 if (pagesize == 0 || is_empty()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1852 return empty_range();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1853 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1854 char* const from = (char*)align_size_up((intptr_t)_start, pagesize);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1855 char* const to = (char*)align_size_down((intptr_t)end(), pagesize);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1856 if (from > to) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1857 return empty_range();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1858 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1859 return AddrRange(from, to - from);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1860 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1861 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1862
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1863 ////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1864 // shared memory bookkeeping
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1865 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1866 // the os::reserve_memory() API and friends hand out different kind of memory, depending
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1867 // on need and circumstances. Memory may be allocated with mmap() or with shmget/shmat.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1868 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1869 // But these memory types have to be treated differently. For example, to uncommit
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1870 // mmap-based memory, msync(MS_INVALIDATE) is needed, to uncommit shmat-based memory,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1871 // disclaim64() is needed.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1872 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1873 // Therefore we need to keep track of the allocated memory segments and their
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1874 // properties.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1875
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1876 // ShmBkBlock: base class for all blocks in the shared memory bookkeeping
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1877 class ShmBkBlock {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1878
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1879 ShmBkBlock* _next;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
1880
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1881 protected:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1882
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1883 AddrRange _range;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1884 const size_t _pagesize;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1885 const bool _pinned;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1886
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1887 public:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1888
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1889 ShmBkBlock(AddrRange range, size_t pagesize, bool pinned)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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1890 : _range(range), _pagesize(pagesize), _pinned(pinned) , _next(NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1891
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1892 assert(_pagesize == SIZE_4K || _pagesize == SIZE_64K || _pagesize == SIZE_16M, "invalid page size");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1893 assert(!_range.is_empty(), "invalid range");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1894 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1895
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1896 virtual void print(outputStream* st) const {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1897 st->print("0x%p ... 0x%p (%llu) - %d %s pages - %s",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1898 _range.start(), _range.end(), _range.size(),
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1899 _range.size() / _pagesize, describe_pagesize(_pagesize),
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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1900 _pinned ? "pinned" : "");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1901 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1902
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1903 enum Type { MMAP, SHMAT };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1904 virtual Type getType() = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1905
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1906 char* base() const { return _range.start(); }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1907 size_t size() const { return _range.size(); }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1908
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1909 void setAddrRange(AddrRange range) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1910 _range = range;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1911 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1912
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1913 bool containsAddress(const char* p) const {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1914 return _range.contains(p);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1915 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1916
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1917 bool containsRange(const char* p, size_t size) const {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1918 return _range.contains(AddrRange((char*)p, size));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1919 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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1920
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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1921 bool isSameRange(const char* p, size_t size) const {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1922 return _range.is_same_range(AddrRange((char*)p, size));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1923 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1924
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1925 virtual bool disclaim(char* p, size_t size) = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1926 virtual bool release() = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1927
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1928 // blocks live in a list.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1929 ShmBkBlock* next() const { return _next; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1930 void set_next(ShmBkBlock* blk) { _next = blk; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1931
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1932 }; // end: ShmBkBlock
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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1933
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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1934
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1935 // ShmBkMappedBlock: describes an block allocated with mmap()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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1936 class ShmBkMappedBlock : public ShmBkBlock {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1937 public:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1938
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1939 ShmBkMappedBlock(AddrRange range)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1940 : ShmBkBlock(range, SIZE_4K, false) {} // mmap: always 4K, never pinned
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1941
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1942 void print(outputStream* st) const {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1943 ShmBkBlock::print(st);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1944 st->print_cr(" - mmap'ed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1945 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1946
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1947 Type getType() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1948 return MMAP;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1949 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff changeset
1950
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1951 bool disclaim(char* p, size_t size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1952
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1953 AddrRange r(p, size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1954
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1955 guarantee(_range.contains(r), "invalid disclaim");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1956
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1957 // only disclaim whole ranges.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1958 const AddrRange r2 = r.find_closest_aligned_range(_pagesize);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1959 if (r2.is_empty()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1960 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1961 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1962
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1963 const int rc = ::msync(r2.start(), r2.size(), MS_INVALIDATE);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1964
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1965 if (rc != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1966 warning("msync(0x%p, %llu, MS_INVALIDATE) failed (%d)\n", r2.start(), r2.size(), errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1967 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1968
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1969 return rc == 0 ? true : false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1970 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1971
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1972 bool release() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1973 // mmap'ed blocks are released using munmap
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1974 if (::munmap(_range.start(), _range.size()) != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1975 warning("munmap(0x%p, %llu) failed (%d)\n", _range.start(), _range.size(), errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1976 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1977 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1978 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1979 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1980 }; // end: ShmBkMappedBlock
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1981
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1982 // ShmBkShmatedBlock: describes an block allocated with shmget/shmat()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1983 class ShmBkShmatedBlock : public ShmBkBlock {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1984 public:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1985
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1986 ShmBkShmatedBlock(AddrRange range, size_t pagesize, bool pinned)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1987 : ShmBkBlock(range, pagesize, pinned) {}
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1988
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1989 void print(outputStream* st) const {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1990 ShmBkBlock::print(st);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1991 st->print_cr(" - shmat'ed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1992 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1993
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1994 Type getType() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1995 return SHMAT;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1996 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1997
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
1998 bool disclaim(char* p, size_t size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
1999
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff changeset
2000 AddrRange r(p, size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2001
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2002 if (_pinned) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2003 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2004 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2005
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2006 // shmat'ed blocks are disclaimed using disclaim64
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2007 guarantee(_range.contains(r), "invalid disclaim");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2008
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2009 // only disclaim whole ranges.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2010 const AddrRange r2 = r.find_closest_aligned_range(_pagesize);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2011 if (r2.is_empty()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2012 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2013 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2014
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2015 const bool rc = my_disclaim64(r2.start(), r2.size());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2016
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2017 if (Verbose && !rc) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2018 warning("failed to disclaim shm %p-%p\n", r2.start(), r2.end());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2019 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff changeset
2020
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2021 return rc;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2022 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2023
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2024 bool release() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2025 bool rc = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2026 if (::shmdt(_range.start()) != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2027 warning("shmdt(0x%p) failed (%d)\n", _range.start(), errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2028 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2029 rc = true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2030 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2031 return rc;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2032 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2033
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2034 }; // end: ShmBkShmatedBlock
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2035
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2036 static ShmBkBlock* g_shmbk_list = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2037 static volatile jint g_shmbk_table_lock = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2038
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2039 // keep some usage statistics
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2040 static struct {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2041 int nodes; // number of nodes in list
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2042 size_t bytes; // reserved - not committed - bytes.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2043 int reserves; // how often reserve was called
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2044 int lookups; // how often a lookup was made
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2045 } g_shmbk_stats = { 0, 0, 0, 0 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2046
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2047 // add information about a shared memory segment to the bookkeeping
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2048 static void shmbk_register(ShmBkBlock* p_block) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2049 guarantee(p_block, "logic error");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2050 p_block->set_next(g_shmbk_list);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2051 g_shmbk_list = p_block;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2052 g_shmbk_stats.reserves ++;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2053 g_shmbk_stats.bytes += p_block->size();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2054 g_shmbk_stats.nodes ++;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2055 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2056
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2057 // remove information about a shared memory segment by its starting address
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2058 static void shmbk_unregister(ShmBkBlock* p_block) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2059 ShmBkBlock* p = g_shmbk_list;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2060 ShmBkBlock* prev = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2061 while (p) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2062 if (p == p_block) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2063 if (prev) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2064 prev->set_next(p->next());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2065 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2066 g_shmbk_list = p->next();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2067 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2068 g_shmbk_stats.nodes --;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2069 g_shmbk_stats.bytes -= p->size();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2070 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2071 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2072 prev = p;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2073 p = p->next();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2074 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2075 assert(false, "should not happen");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2076 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2077
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2078 // given a pointer, return shared memory bookkeeping record for the segment it points into
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2079 // using the returned block info must happen under lock protection
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2080 static ShmBkBlock* shmbk_find_by_containing_address(const char* addr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2081 g_shmbk_stats.lookups ++;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2082 ShmBkBlock* p = g_shmbk_list;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2083 while (p) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2084 if (p->containsAddress(addr)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2085 return p;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2086 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2087 p = p->next();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2088 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2089 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2090 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2091
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2092 // dump all information about all memory segments allocated with os::reserve_memory()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2093 void shmbk_dump_info() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2094 tty->print_cr("-- shared mem bookkeeping (alive: %d segments, %llu bytes, "
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2095 "total reserves: %d total lookups: %d)",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2096 g_shmbk_stats.nodes, g_shmbk_stats.bytes, g_shmbk_stats.reserves, g_shmbk_stats.lookups);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2097 const ShmBkBlock* p = g_shmbk_list;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2098 int i = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2099 while (p) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2100 p->print(tty);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2101 p = p->next();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2102 i ++;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2103 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2104 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2105
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2106 #define LOCK_SHMBK { ThreadCritical _LOCK_SHMBK;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2107 #define UNLOCK_SHMBK }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2108
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2109 // End: shared memory bookkeeping
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2110 ////////////////////////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2111
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2112 int os::vm_page_size() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2113 // Seems redundant as all get out
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2114 assert(os::Aix::page_size() != -1, "must call os::init");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2115 return os::Aix::page_size();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2116 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2117
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2118 // Aix allocates memory by pages.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2119 int os::vm_allocation_granularity() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2120 assert(os::Aix::page_size() != -1, "must call os::init");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2121 return os::Aix::page_size();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2122 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2123
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2124 int os::Aix::commit_memory_impl(char* addr, size_t size, bool exec) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2125
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2126 // Commit is a noop. There is no explicit commit
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2127 // needed on AIX. Memory is committed when touched.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2128 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2129 // Debug : check address range for validity
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2130 #ifdef ASSERT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2131 LOCK_SHMBK
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2132 ShmBkBlock* const block = shmbk_find_by_containing_address(addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2133 if (!block) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2134 fprintf(stderr, "invalid pointer: " INTPTR_FORMAT "\n", addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2135 shmbk_dump_info();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2136 assert(false, "invalid pointer");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2137 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2138 } else if (!block->containsRange(addr, size)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2139 fprintf(stderr, "invalid range: " INTPTR_FORMAT " .. " INTPTR_FORMAT "\n", addr, addr + size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2140 shmbk_dump_info();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2141 assert(false, "invalid range");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2142 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2143 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2144 UNLOCK_SHMBK
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2145 #endif // ASSERT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2146
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2147 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2148 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2149
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2150 bool os::pd_commit_memory(char* addr, size_t size, bool exec) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2151 return os::Aix::commit_memory_impl(addr, size, exec) == 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2152 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2153
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2154 void os::pd_commit_memory_or_exit(char* addr, size_t size, bool exec,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2155 const char* mesg) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2156 assert(mesg != NULL, "mesg must be specified");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2157 os::Aix::commit_memory_impl(addr, size, exec);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2158 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2159
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2160 int os::Aix::commit_memory_impl(char* addr, size_t size,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2161 size_t alignment_hint, bool exec) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2162 return os::Aix::commit_memory_impl(addr, size, exec);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2163 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2164
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2165 bool os::pd_commit_memory(char* addr, size_t size, size_t alignment_hint,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2166 bool exec) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2167 return os::Aix::commit_memory_impl(addr, size, alignment_hint, exec) == 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2168 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2169
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2170 void os::pd_commit_memory_or_exit(char* addr, size_t size,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2171 size_t alignment_hint, bool exec,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2172 const char* mesg) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2173 os::Aix::commit_memory_impl(addr, size, alignment_hint, exec);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2174 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2175
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2176 bool os::pd_uncommit_memory(char* addr, size_t size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2177
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2178 // Delegate to ShmBkBlock class which knows how to uncommit its memory.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2179
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2180 bool rc = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2181 LOCK_SHMBK
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2182 ShmBkBlock* const block = shmbk_find_by_containing_address(addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2183 if (!block) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2184 fprintf(stderr, "invalid pointer: 0x%p.\n", addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2185 shmbk_dump_info();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2186 assert(false, "invalid pointer");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2187 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2188 } else if (!block->containsRange(addr, size)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2189 fprintf(stderr, "invalid range: 0x%p .. 0x%p.\n", addr, addr + size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2190 shmbk_dump_info();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2191 assert(false, "invalid range");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2192 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2193 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2194 rc = block->disclaim(addr, size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2195 UNLOCK_SHMBK
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2196
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2197 if (Verbose && !rc) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2198 warning("failed to disclaim 0x%p .. 0x%p (0x%llX bytes).", addr, addr + size, size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2199 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2200 return rc;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2201 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2202
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2203 bool os::pd_create_stack_guard_pages(char* addr, size_t size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2204 return os::guard_memory(addr, size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2205 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2206
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2207 bool os::remove_stack_guard_pages(char* addr, size_t size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2208 return os::unguard_memory(addr, size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2209 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2210
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2211 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2212 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2213
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2214 void os::pd_free_memory(char *addr, size_t bytes, size_t alignment_hint) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2215 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2216
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2217 void os::numa_make_global(char *addr, size_t bytes) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2218 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2219
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2220 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2221 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2222
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2223 bool os::numa_topology_changed() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2224 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2225 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2226
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2227 size_t os::numa_get_groups_num() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2228 return 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2229 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2230
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2231 int os::numa_get_group_id() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2232 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2233 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2234
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2235 size_t os::numa_get_leaf_groups(int *ids, size_t size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2236 if (size > 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2237 ids[0] = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2238 return 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2239 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2240 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2241 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2242
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2243 bool os::get_page_info(char *start, page_info* info) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2244 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2245 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2246
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2247 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2248 return end;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2249 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2250
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2251 // Flags for reserve_shmatted_memory:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2252 #define RESSHM_WISHADDR_OR_FAIL 1
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2253 #define RESSHM_TRY_16M_PAGES 2
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2254 #define RESSHM_16M_PAGES_OR_FAIL 4
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2255
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2256 // Result of reserve_shmatted_memory:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2257 struct shmatted_memory_info_t {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2258 char* addr;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2259 size_t pagesize;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2260 bool pinned;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2261 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2262
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2263 // Reserve a section of shmatted memory.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2264 // params:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2265 // bytes [in]: size of memory, in bytes
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2266 // requested_addr [in]: wish address.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2267 // NULL = no wish.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2268 // If RESSHM_WISHADDR_OR_FAIL is set in flags and wish address cannot
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2269 // be obtained, function will fail. Otherwise wish address is treated as hint and
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2270 // another pointer is returned.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2271 // flags [in]: some flags. Valid flags are:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2272 // RESSHM_WISHADDR_OR_FAIL - fail if wish address is given and cannot be obtained.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2273 // RESSHM_TRY_16M_PAGES - try to allocate from 16M page pool
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2274 // (requires UseLargePages and Use16MPages)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2275 // RESSHM_16M_PAGES_OR_FAIL - if you cannot allocate from 16M page pool, fail.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2276 // Otherwise any other page size will do.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2277 // p_info [out] : holds information about the created shared memory segment.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2278 static bool reserve_shmatted_memory(size_t bytes, char* requested_addr, int flags, shmatted_memory_info_t* p_info) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2279
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2280 assert(p_info, "parameter error");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2281
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2282 // init output struct.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2283 p_info->addr = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2284
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2285 // neither should we be here for EXTSHM=ON.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2286 if (os::Aix::extshm()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2287 ShouldNotReachHere();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2288 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2289
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2290 // extract flags. sanity checks.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2291 const bool wishaddr_or_fail =
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2292 flags & RESSHM_WISHADDR_OR_FAIL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2293 const bool try_16M_pages =
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2294 flags & RESSHM_TRY_16M_PAGES;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2295 const bool f16M_pages_or_fail =
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2296 flags & RESSHM_16M_PAGES_OR_FAIL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2297
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2298 // first check: if a wish address is given and it is mandatory, but not aligned to segment boundary,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2299 // shmat will fail anyway, so save some cycles by failing right away
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2300 if (requested_addr && ((uintptr_t)requested_addr % SIZE_256M == 0)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2301 if (wishaddr_or_fail) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2302 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2303 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2304 requested_addr = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2305 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2306 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2307
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2308 char* addr = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2309
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2310 // Align size of shm up to the largest possible page size, to avoid errors later on when we try to change
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2311 // pagesize dynamically.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2312 const size_t size = align_size_up(bytes, SIZE_16M);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2313
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2314 // reserve the shared segment
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2315 int shmid = shmget(IPC_PRIVATE, size, IPC_CREAT | S_IRUSR | S_IWUSR);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2316 if (shmid == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2317 warning("shmget(.., %lld, ..) failed (errno: %d).", size, errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2318 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2319 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2320
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2321 // Important note:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2322 // It is very important that we, upon leaving this function, do not leave a shm segment alive.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2323 // We must right after attaching it remove it from the system. System V shm segments are global and
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2324 // survive the process.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2325 // So, from here on: Do not assert. Do not return. Always do a "goto cleanup_shm".
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2326
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2327 // try forcing the page size
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2328 size_t pagesize = -1; // unknown so far
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2329
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2330 if (UseLargePages) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2331
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2332 struct shmid_ds shmbuf;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2333 memset(&shmbuf, 0, sizeof(shmbuf));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2334
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2335 // First, try to take from 16M page pool if...
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2336 if (os::Aix::can_use_16M_pages() // we can ...
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2337 && Use16MPages // we are not explicitly forbidden to do so (-XX:-Use16MPages)..
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2338 && try_16M_pages) { // caller wants us to.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2339 shmbuf.shm_pagesize = SIZE_16M;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2340 if (shmctl(shmid, SHM_PAGESIZE, &shmbuf) == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2341 pagesize = SIZE_16M;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2342 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2343 warning("Failed to allocate %d 16M pages. 16M page pool might be exhausted. (shmctl failed with %d)",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2344 size / SIZE_16M, errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2345 if (f16M_pages_or_fail) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2346 goto cleanup_shm;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2347 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2348 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2349 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2350
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2351 // Nothing yet? Try setting 64K pages. Note that I never saw this fail, but in theory it might,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2352 // because the 64K page pool may also be exhausted.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2353 if (pagesize == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2354 shmbuf.shm_pagesize = SIZE_64K;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2355 if (shmctl(shmid, SHM_PAGESIZE, &shmbuf) == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2356 pagesize = SIZE_64K;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2357 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2358 warning("Failed to allocate %d 64K pages. (shmctl failed with %d)",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2359 size / SIZE_64K, errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2360 // here I give up. leave page_size -1 - later, after attaching, we will query the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2361 // real page size of the attached memory. (in theory, it may be something different
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2362 // from 4K if LDR_CNTRL SHM_PSIZE is set)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2363 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2364 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2365 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2366
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2367 // sanity point
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2368 assert(pagesize == -1 || pagesize == SIZE_16M || pagesize == SIZE_64K, "wrong page size");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2369
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2370 // Now attach the shared segment.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2371 addr = (char*) shmat(shmid, requested_addr, 0);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2372 if (addr == (char*)-1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2373 // How to handle attach failure:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2374 // If it failed for a specific wish address, tolerate this: in that case, if wish address was
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2375 // mandatory, fail, if not, retry anywhere.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2376 // If it failed for any other reason, treat that as fatal error.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2377 addr = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2378 if (requested_addr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2379 if (wishaddr_or_fail) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2380 goto cleanup_shm;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2381 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2382 addr = (char*) shmat(shmid, NULL, 0);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2383 if (addr == (char*)-1) { // fatal
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2384 addr = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2385 warning("shmat failed (errno: %d)", errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2386 goto cleanup_shm;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2387 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2388 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2389 } else { // fatal
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2390 addr = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2391 warning("shmat failed (errno: %d)", errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2392 goto cleanup_shm;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2393 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2394 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2395
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2396 // sanity point
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2397 assert(addr && addr != (char*) -1, "wrong address");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2398
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2399 // after successful Attach remove the segment - right away.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2400 if (::shmctl(shmid, IPC_RMID, NULL) == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2401 warning("shmctl(%u, IPC_RMID) failed (%d)\n", shmid, errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2402 guarantee(false, "failed to remove shared memory segment!");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2403 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2404 shmid = -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2405
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2406 // query the real page size. In case setting the page size did not work (see above), the system
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2407 // may have given us something other then 4K (LDR_CNTRL)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2408 {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2409 const size_t real_pagesize = os::Aix::query_pagesize(addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2410 if (pagesize != -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2411 assert(pagesize == real_pagesize, "unexpected pagesize after shmat");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2412 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2413 pagesize = real_pagesize;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2414 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2415 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2416
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2417 // Now register the reserved block with internal book keeping.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2418 LOCK_SHMBK
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2419 const bool pinned = pagesize >= SIZE_16M ? true : false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2420 ShmBkShmatedBlock* const p_block = new ShmBkShmatedBlock(AddrRange(addr, size), pagesize, pinned);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2421 assert(p_block, "");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2422 shmbk_register(p_block);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2423 UNLOCK_SHMBK
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2424
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2425 cleanup_shm:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2426
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2427 // if we have not done so yet, remove the shared memory segment. This is very important.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2428 if (shmid != -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2429 if (::shmctl(shmid, IPC_RMID, NULL) == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2430 warning("shmctl(%u, IPC_RMID) failed (%d)\n", shmid, errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2431 guarantee(false, "failed to remove shared memory segment!");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2432 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2433 shmid = -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2434 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2435
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2436 // trace
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2437 if (Verbose && !addr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2438 if (requested_addr != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2439 warning("failed to shm-allocate 0x%llX bytes at with address 0x%p.", size, requested_addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2440 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2441 warning("failed to shm-allocate 0x%llX bytes at any address.", size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2442 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2443 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2444
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2445 // hand info to caller
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2446 if (addr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2447 p_info->addr = addr;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2448 p_info->pagesize = pagesize;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2449 p_info->pinned = pagesize == SIZE_16M ? true : false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2450 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2451
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2452 // sanity test:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2453 if (requested_addr && addr && wishaddr_or_fail) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2454 guarantee(addr == requested_addr, "shmat error");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2455 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2456
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2457 // just one more test to really make sure we have no dangling shm segments.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2458 guarantee(shmid == -1, "dangling shm segments");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2459
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2460 return addr ? true : false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2461
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2462 } // end: reserve_shmatted_memory
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2463
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2464 // Reserve memory using mmap. Behaves the same as reserve_shmatted_memory():
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2465 // will return NULL in case of an error.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2466 static char* reserve_mmaped_memory(size_t bytes, char* requested_addr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2467
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2468 // if a wish address is given, but not aligned to 4K page boundary, mmap will fail.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2469 if (requested_addr && ((uintptr_t)requested_addr % os::vm_page_size() != 0)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2470 warning("Wish address 0x%p not aligned to page boundary.", requested_addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2471 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2472 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2473
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2474 const size_t size = align_size_up(bytes, SIZE_4K);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2475
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2476 // Note: MAP_SHARED (instead of MAP_PRIVATE) needed to be able to
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2477 // msync(MS_INVALIDATE) (see os::uncommit_memory)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2478 int flags = MAP_ANONYMOUS | MAP_SHARED;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2479
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2480 // MAP_FIXED is needed to enforce requested_addr - manpage is vague about what
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2481 // it means if wishaddress is given but MAP_FIXED is not set.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2482 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2483 // Note however that this changes semantics in SPEC1170 mode insofar as MAP_FIXED
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2484 // clobbers the address range, which is probably not what the caller wants. That's
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2485 // why I assert here (again) that the SPEC1170 compat mode is off.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2486 // If we want to be able to run under SPEC1170, we have to do some porting and
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2487 // testing.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2488 if (requested_addr != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2489 assert(!os::Aix::xpg_sus_mode(), "SPEC1170 mode not allowed.");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2490 flags |= MAP_FIXED;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2491 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2492
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2493 char* addr = (char*)::mmap(requested_addr, size, PROT_READ|PROT_WRITE|PROT_EXEC, flags, -1, 0);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2494
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2495 if (addr == MAP_FAILED) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2496 // attach failed: tolerate for specific wish addresses. Not being able to attach
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2497 // anywhere is a fatal error.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2498 if (requested_addr == NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2499 // It's ok to fail here if the machine has not enough memory.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2500 warning("mmap(NULL, 0x%llX, ..) failed (%d)", size, errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2501 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2502 addr = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2503 goto cleanup_mmap;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2504 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2505
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2506 // If we did request a specific address and that address was not available, fail.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2507 if (addr && requested_addr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2508 guarantee(addr == requested_addr, "unexpected");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2509 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2510
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2511 // register this mmap'ed segment with book keeping
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2512 LOCK_SHMBK
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2513 ShmBkMappedBlock* const p_block = new ShmBkMappedBlock(AddrRange(addr, size));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2514 assert(p_block, "");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2515 shmbk_register(p_block);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2516 UNLOCK_SHMBK
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2517
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2518 cleanup_mmap:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2519
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2520 if (addr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2521 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2522 fprintf(stderr, "mmap-allocated 0x%p .. 0x%p (0x%llX bytes)\n", addr, addr + bytes, bytes);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2523 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2524 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2525 else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2526 if (requested_addr != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2527 warning("failed to mmap-allocate 0x%llX bytes at wish address 0x%p.", bytes, requested_addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2528 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2529 warning("failed to mmap-allocate 0x%llX bytes at any address.", bytes);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2530 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2531 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2532
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2533 return addr;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2534
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2535 } // end: reserve_mmaped_memory
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2536
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2537 // Reserves and attaches a shared memory segment.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2538 // Will assert if a wish address is given and could not be obtained.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2539 char* os::pd_reserve_memory(size_t bytes, char* requested_addr, size_t alignment_hint) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2540 return os::attempt_reserve_memory_at(bytes, requested_addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2541 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2542
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2543 bool os::pd_release_memory(char* addr, size_t size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2544
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2545 // delegate to ShmBkBlock class which knows how to uncommit its memory.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2546
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2547 bool rc = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2548 LOCK_SHMBK
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2549 ShmBkBlock* const block = shmbk_find_by_containing_address(addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2550 if (!block) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2551 fprintf(stderr, "invalid pointer: 0x%p.\n", addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2552 shmbk_dump_info();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2553 assert(false, "invalid pointer");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2554 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2555 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2556 else if (!block->isSameRange(addr, size)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2557 if (block->getType() == ShmBkBlock::MMAP) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2558 // Release only the same range or a the beginning or the end of a range.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2559 if (block->base() == addr && size < block->size()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2560 ShmBkMappedBlock* const b = new ShmBkMappedBlock(AddrRange(block->base() + size, block->size() - size));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2561 assert(b, "");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2562 shmbk_register(b);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2563 block->setAddrRange(AddrRange(addr, size));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2564 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2565 else if (addr > block->base() && addr + size == block->base() + block->size()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2566 ShmBkMappedBlock* const b = new ShmBkMappedBlock(AddrRange(block->base(), block->size() - size));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2567 assert(b, "");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2568 shmbk_register(b);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2569 block->setAddrRange(AddrRange(addr, size));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2570 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2571 else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2572 fprintf(stderr, "invalid mmap range: 0x%p .. 0x%p.\n", addr, addr + size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2573 shmbk_dump_info();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2574 assert(false, "invalid mmap range");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2575 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2576 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2577 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2578 else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2579 // Release only the same range. No partial release allowed.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2580 // Soften the requirement a bit, because the user may think he owns a smaller size
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2581 // than the block is due to alignment etc.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2582 if (block->base() != addr || block->size() < size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2583 fprintf(stderr, "invalid shmget range: 0x%p .. 0x%p.\n", addr, addr + size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2584 shmbk_dump_info();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2585 assert(false, "invalid shmget range");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2586 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2587 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2588 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2589 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2590 rc = block->release();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2591 assert(rc, "release failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2592 // remove block from bookkeeping
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2593 shmbk_unregister(block);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2594 delete block;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2595 UNLOCK_SHMBK
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2596
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2597 if (!rc) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2598 warning("failed to released %lu bytes at 0x%p", size, addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2599 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2600
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2601 return rc;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2602 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2603
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2604 static bool checked_mprotect(char* addr, size_t size, int prot) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2605
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2606 // Little problem here: if SPEC1170 behaviour is off, mprotect() on AIX will
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2607 // not tell me if protection failed when trying to protect an un-protectable range.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2608 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2609 // This means if the memory was allocated using shmget/shmat, protection wont work
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2610 // but mprotect will still return 0:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2611 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2612 // See http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.basetechref/doc/basetrf1/mprotect.htm
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2613
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2614 bool rc = ::mprotect(addr, size, prot) == 0 ? true : false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2615
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2616 if (!rc) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2617 const char* const s_errno = strerror(errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2618 warning("mprotect(" PTR_FORMAT "-" PTR_FORMAT ", 0x%X) failed (%s).", addr, addr + size, prot, s_errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2619 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2620 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2621
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2622 // mprotect success check
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2623 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2624 // Mprotect said it changed the protection but can I believe it?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2625 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2626 // To be sure I need to check the protection afterwards. Try to
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2627 // read from protected memory and check whether that causes a segfault.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2628 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2629 if (!os::Aix::xpg_sus_mode()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2630
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2631 if (StubRoutines::SafeFetch32_stub()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2632
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2633 const bool read_protected =
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2634 (SafeFetch32((int*)addr, 0x12345678) == 0x12345678 &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2635 SafeFetch32((int*)addr, 0x76543210) == 0x76543210) ? true : false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2636
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2637 if (prot & PROT_READ) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2638 rc = !read_protected;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2639 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2640 rc = read_protected;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2641 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2642 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2643 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2644 if (!rc) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2645 assert(false, "mprotect failed.");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2646 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2647 return rc;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2648 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2649
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2650 // Set protections specified
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2651 bool os::protect_memory(char* addr, size_t size, ProtType prot, bool is_committed) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2652 unsigned int p = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2653 switch (prot) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2654 case MEM_PROT_NONE: p = PROT_NONE; break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2655 case MEM_PROT_READ: p = PROT_READ; break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2656 case MEM_PROT_RW: p = PROT_READ|PROT_WRITE; break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2657 case MEM_PROT_RWX: p = PROT_READ|PROT_WRITE|PROT_EXEC; break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2658 default:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2659 ShouldNotReachHere();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2660 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2661 // is_committed is unused.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2662 return checked_mprotect(addr, size, p);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2663 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2664
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2665 bool os::guard_memory(char* addr, size_t size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2666 return checked_mprotect(addr, size, PROT_NONE);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2667 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2668
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2669 bool os::unguard_memory(char* addr, size_t size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2670 return checked_mprotect(addr, size, PROT_READ|PROT_WRITE|PROT_EXEC);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2671 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2672
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2673 // Large page support
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2674
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2675 static size_t _large_page_size = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2676
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2677 // Enable large page support if OS allows that.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2678 void os::large_page_init() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2679
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2680 // Note: os::Aix::query_multipage_support must run first.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2681
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2682 if (!UseLargePages) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2683 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2684 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2685
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2686 if (!Aix::can_use_64K_pages()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2687 assert(!Aix::can_use_16M_pages(), "64K is a precondition for 16M.");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2688 UseLargePages = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2689 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2690 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2691
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2692 if (!Aix::can_use_16M_pages() && Use16MPages) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2693 fprintf(stderr, "Cannot use 16M pages. Please ensure that there is a 16M page pool "
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2694 " and that the VM runs with CAP_BYPASS_RAC_VMM and CAP_PROPAGATE capabilities.\n");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2695 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2696
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2697 // Do not report 16M page alignment as part of os::_page_sizes if we are
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2698 // explicitly forbidden from using 16M pages. Doing so would increase the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2699 // alignment the garbage collector calculates with, slightly increasing
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2700 // heap usage. We should only pay for 16M alignment if we really want to
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2701 // use 16M pages.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2702 if (Use16MPages && Aix::can_use_16M_pages()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2703 _large_page_size = SIZE_16M;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2704 _page_sizes[0] = SIZE_16M;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2705 _page_sizes[1] = SIZE_64K;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2706 _page_sizes[2] = SIZE_4K;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2707 _page_sizes[3] = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2708 } else if (Aix::can_use_64K_pages()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2709 _large_page_size = SIZE_64K;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2710 _page_sizes[0] = SIZE_64K;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2711 _page_sizes[1] = SIZE_4K;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2712 _page_sizes[2] = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2713 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2714
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2715 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2716 ("Default large page size is 0x%llX.", _large_page_size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2717 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2718 } // end: os::large_page_init()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2719
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2720 char* os::reserve_memory_special(size_t bytes, size_t alignment, char* req_addr, bool exec) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2721 // "exec" is passed in but not used. Creating the shared image for
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2722 // the code cache doesn't have an SHM_X executable permission to check.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2723 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2724 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2725 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2726
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2727 bool os::release_memory_special(char* base, size_t bytes) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2728 // detaching the SHM segment will also delete it, see reserve_memory_special()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2729 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2730 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2731 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2732
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2733 size_t os::large_page_size() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2734 return _large_page_size;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2735 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2736
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2737 bool os::can_commit_large_page_memory() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2738 // Well, sadly we cannot commit anything at all (see comment in
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2739 // os::commit_memory) but we claim to so we can make use of large pages
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2740 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2741 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2742
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2743 bool os::can_execute_large_page_memory() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2744 // We can do that
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2745 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2746 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2747
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2748 // Reserve memory at an arbitrary address, only if that area is
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2749 // available (and not reserved for something else).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2750 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2751
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2752 bool use_mmap = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2753
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2754 // mmap: smaller graining, no large page support
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2755 // shm: large graining (256M), large page support, limited number of shm segments
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2756 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2757 // Prefer mmap wherever we either do not need large page support or have OS limits
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2758
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2759 if (!UseLargePages || bytes < SIZE_16M) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2760 use_mmap = true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2761 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2762
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2763 char* addr = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2764 if (use_mmap) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2765 addr = reserve_mmaped_memory(bytes, requested_addr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2766 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2767 // shmat: wish address is mandatory, and do not try 16M pages here.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2768 shmatted_memory_info_t info;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2769 const int flags = RESSHM_WISHADDR_OR_FAIL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2770 if (reserve_shmatted_memory(bytes, requested_addr, flags, &info)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2771 addr = info.addr;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2772 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2773 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2774
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2775 return addr;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2776 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2777
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2778 size_t os::read(int fd, void *buf, unsigned int nBytes) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2779 return ::read(fd, buf, nBytes);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2780 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2781
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2782 #define NANOSECS_PER_MILLISEC 1000000
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2783
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2784 int os::sleep(Thread* thread, jlong millis, bool interruptible) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2785 assert(thread == Thread::current(), "thread consistency check");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2786
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2787 // Prevent nasty overflow in deadline calculation
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2788 // by handling long sleeps similar to solaris or windows.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2789 const jlong limit = INT_MAX;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2790 int result;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2791 while (millis > limit) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2792 if ((result = os::sleep(thread, limit, interruptible)) != OS_OK) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2793 return result;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2794 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2795 millis -= limit;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2796 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2797
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2798 ParkEvent * const slp = thread->_SleepEvent;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2799 slp->reset();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2800 OrderAccess::fence();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2801
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2802 if (interruptible) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2803 jlong prevtime = javaTimeNanos();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2804
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2805 // Prevent precision loss and too long sleeps
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2806 jlong deadline = prevtime + millis * NANOSECS_PER_MILLISEC;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2807
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2808 for (;;) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2809 if (os::is_interrupted(thread, true)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2810 return OS_INTRPT;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2811 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2812
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2813 jlong newtime = javaTimeNanos();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2814
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2815 assert(newtime >= prevtime, "time moving backwards");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2816 // Doing prevtime and newtime in microseconds doesn't help precision,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2817 // and trying to round up to avoid lost milliseconds can result in a
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2818 // too-short delay.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2819 millis -= (newtime - prevtime) / NANOSECS_PER_MILLISEC;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2820
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2821 if (millis <= 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2822 return OS_OK;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2823 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2824
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2825 // Stop sleeping if we passed the deadline
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2826 if (newtime >= deadline) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2827 return OS_OK;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2828 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2829
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2830 prevtime = newtime;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2831
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2832 {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2833 assert(thread->is_Java_thread(), "sanity check");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2834 JavaThread *jt = (JavaThread *) thread;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2835 ThreadBlockInVM tbivm(jt);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2836 OSThreadWaitState osts(jt->osthread(), false /* not Object.wait() */);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2837
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2838 jt->set_suspend_equivalent();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2839
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2840 slp->park(millis);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2841
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2842 // were we externally suspended while we were waiting?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2843 jt->check_and_wait_while_suspended();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2844 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2845 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2846 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2847 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2848 jlong prevtime = javaTimeNanos();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2849
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2850 // Prevent precision loss and too long sleeps
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2851 jlong deadline = prevtime + millis * NANOSECS_PER_MILLISEC;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2852
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2853 for (;;) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2854 // It'd be nice to avoid the back-to-back javaTimeNanos() calls on
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2855 // the 1st iteration ...
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2856 jlong newtime = javaTimeNanos();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2857
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2858 if (newtime - prevtime < 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2859 // time moving backwards, should only happen if no monotonic clock
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2860 // not a guarantee() because JVM should not abort on kernel/glibc bugs
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2861 // - HS14 Commented out as not implemented.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2862 // - TODO Maybe we should implement it?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2863 //assert(!Aix::supports_monotonic_clock(), "time moving backwards");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2864 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2865 millis -= (newtime - prevtime) / NANOSECS_PER_MILLISEC;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2866 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2867
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2868 if (millis <= 0) break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2869
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2870 if (newtime >= deadline) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2871 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2872 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2873
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2874 prevtime = newtime;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2875 slp->park(millis);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2876 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2877 return OS_OK;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2878 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2879 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2880
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2881 int os::naked_sleep() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2882 // %% make the sleep time an integer flag. for now use 1 millisec.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2883 return os::sleep(Thread::current(), 1, false);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2884 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2885
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2886 // Sleep forever; naked call to OS-specific sleep; use with CAUTION
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2887 void os::infinite_sleep() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2888 while (true) { // sleep forever ...
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2889 ::sleep(100); // ... 100 seconds at a time
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2890 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2891 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2892
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2893 // Used to convert frequent JVM_Yield() to nops
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2894 bool os::dont_yield() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2895 return DontYieldALot;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2896 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2897
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2898 void os::yield() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2899 sched_yield();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2900 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2901
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2902 os::YieldResult os::NakedYield() { sched_yield(); return os::YIELD_UNKNOWN; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2903
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2904 void os::yield_all(int attempts) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2905 // Yields to all threads, including threads with lower priorities
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2906 // Threads on Linux are all with same priority. The Solaris style
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2907 // os::yield_all() with nanosleep(1ms) is not necessary.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2908 sched_yield();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2909 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2910
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2911 // Called from the tight loops to possibly influence time-sharing heuristics
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2912 void os::loop_breaker(int attempts) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2913 os::yield_all(attempts);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2914 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2915
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2916 ////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2917 // thread priority support
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2918
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2919 // From AIX manpage to pthread_setschedparam
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2920 // (see: http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2921 // topic=/com.ibm.aix.basetechref/doc/basetrf1/pthread_setschedparam.htm):
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2922 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2923 // "If schedpolicy is SCHED_OTHER, then sched_priority must be in the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2924 // range from 40 to 80, where 40 is the least favored priority and 80
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2925 // is the most favored."
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2926 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2927 // (Actually, I doubt this even has an impact on AIX, as we do kernel
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2928 // scheduling there; however, this still leaves iSeries.)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2929 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2930 // We use the same values for AIX and PASE.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2931 int os::java_to_os_priority[CriticalPriority + 1] = {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2932 54, // 0 Entry should never be used
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2933
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2934 55, // 1 MinPriority
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2935 55, // 2
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2936 56, // 3
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2937
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2938 56, // 4
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2939 57, // 5 NormPriority
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2940 57, // 6
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2941
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2942 58, // 7
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2943 58, // 8
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2944 59, // 9 NearMaxPriority
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2945
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2946 60, // 10 MaxPriority
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2947
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2948 60 // 11 CriticalPriority
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2949 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2950
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2951 OSReturn os::set_native_priority(Thread* thread, int newpri) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2952 if (!UseThreadPriorities) return OS_OK;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2953 pthread_t thr = thread->osthread()->pthread_id();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2954 int policy = SCHED_OTHER;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2955 struct sched_param param;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2956 param.sched_priority = newpri;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2957 int ret = pthread_setschedparam(thr, policy, &param);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2958
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2959 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2960 if (ret == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2961 fprintf(stderr, "changed priority of thread %d to %d\n", (int)thr, newpri);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2962 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2963 fprintf(stderr, "Could not changed priority for thread %d to %d (error %d, %s)\n",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2964 (int)thr, newpri, ret, strerror(ret));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2965 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2966 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2967 return (ret == 0) ? OS_OK : OS_ERR;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2968 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2969
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2970 OSReturn os::get_native_priority(const Thread* const thread, int *priority_ptr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2971 if (!UseThreadPriorities) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2972 *priority_ptr = java_to_os_priority[NormPriority];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2973 return OS_OK;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2974 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2975 pthread_t thr = thread->osthread()->pthread_id();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2976 int policy = SCHED_OTHER;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2977 struct sched_param param;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2978 int ret = pthread_getschedparam(thr, &policy, &param);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2979 *priority_ptr = param.sched_priority;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2980
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2981 return (ret == 0) ? OS_OK : OS_ERR;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2982 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2983
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2984 // Hint to the underlying OS that a task switch would not be good.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2985 // Void return because it's a hint and can fail.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2986 void os::hint_no_preempt() {}
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2987
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2988 ////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2989 // suspend/resume support
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2990
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2991 // the low-level signal-based suspend/resume support is a remnant from the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2992 // old VM-suspension that used to be for java-suspension, safepoints etc,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2993 // within hotspot. Now there is a single use-case for this:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2994 // - calling get_thread_pc() on the VMThread by the flat-profiler task
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2995 // that runs in the watcher thread.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2996 // The remaining code is greatly simplified from the more general suspension
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2997 // code that used to be used.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2998 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
2999 // The protocol is quite simple:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3000 // - suspend:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3001 // - sends a signal to the target thread
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3002 // - polls the suspend state of the osthread using a yield loop
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3003 // - target thread signal handler (SR_handler) sets suspend state
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3004 // and blocks in sigsuspend until continued
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3005 // - resume:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3006 // - sets target osthread state to continue
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3007 // - sends signal to end the sigsuspend loop in the SR_handler
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3008 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3009 // Note that the SR_lock plays no role in this suspend/resume protocol.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3010 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3011
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3012 static void resume_clear_context(OSThread *osthread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3013 osthread->set_ucontext(NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3014 osthread->set_siginfo(NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3015 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3016
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3017 static void suspend_save_context(OSThread *osthread, siginfo_t* siginfo, ucontext_t* context) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3018 osthread->set_ucontext(context);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3019 osthread->set_siginfo(siginfo);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3020 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3021
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3022 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3023 // Handler function invoked when a thread's execution is suspended or
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3024 // resumed. We have to be careful that only async-safe functions are
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3025 // called here (Note: most pthread functions are not async safe and
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3026 // should be avoided.)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3027 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3028 // Note: sigwait() is a more natural fit than sigsuspend() from an
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3029 // interface point of view, but sigwait() prevents the signal hander
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3030 // from being run. libpthread would get very confused by not having
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3031 // its signal handlers run and prevents sigwait()'s use with the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3032 // mutex granting granting signal.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3033 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3034 // Currently only ever called on the VMThread and JavaThreads (PC sampling).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3035 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3036 static void SR_handler(int sig, siginfo_t* siginfo, ucontext_t* context) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3037 // Save and restore errno to avoid confusing native code with EINTR
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3038 // after sigsuspend.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3039 int old_errno = errno;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3040
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3041 Thread* thread = Thread::current();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3042 OSThread* osthread = thread->osthread();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3043 assert(thread->is_VM_thread() || thread->is_Java_thread(), "Must be VMThread or JavaThread");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3044
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3045 os::SuspendResume::State current = osthread->sr.state();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3046 if (current == os::SuspendResume::SR_SUSPEND_REQUEST) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3047 suspend_save_context(osthread, siginfo, context);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3048
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3049 // attempt to switch the state, we assume we had a SUSPEND_REQUEST
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3050 os::SuspendResume::State state = osthread->sr.suspended();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3051 if (state == os::SuspendResume::SR_SUSPENDED) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3052 sigset_t suspend_set; // signals for sigsuspend()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3053
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3054 // get current set of blocked signals and unblock resume signal
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3055 pthread_sigmask(SIG_BLOCK, NULL, &suspend_set);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3056 sigdelset(&suspend_set, SR_signum);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3057
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3058 // wait here until we are resumed
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3059 while (1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3060 sigsuspend(&suspend_set);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3061
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3062 os::SuspendResume::State result = osthread->sr.running();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3063 if (result == os::SuspendResume::SR_RUNNING) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3064 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3065 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3066 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3067
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3068 } else if (state == os::SuspendResume::SR_RUNNING) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3069 // request was cancelled, continue
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3070 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3071 ShouldNotReachHere();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3072 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3073
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3074 resume_clear_context(osthread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3075 } else if (current == os::SuspendResume::SR_RUNNING) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3076 // request was cancelled, continue
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3077 } else if (current == os::SuspendResume::SR_WAKEUP_REQUEST) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3078 // ignore
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3079 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3080 ShouldNotReachHere();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3081 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3082
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3083 errno = old_errno;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3084 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3085
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3086
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3087 static int SR_initialize() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3088 struct sigaction act;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3089 char *s;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3090 // Get signal number to use for suspend/resume
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3091 if ((s = ::getenv("_JAVA_SR_SIGNUM")) != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3092 int sig = ::strtol(s, 0, 10);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3093 if (sig > 0 || sig < NSIG) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3094 SR_signum = sig;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3095 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3096 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3097
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3098 assert(SR_signum > SIGSEGV && SR_signum > SIGBUS,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3099 "SR_signum must be greater than max(SIGSEGV, SIGBUS), see 4355769");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3100
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3101 sigemptyset(&SR_sigset);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3102 sigaddset(&SR_sigset, SR_signum);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3103
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3104 // Set up signal handler for suspend/resume.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3105 act.sa_flags = SA_RESTART|SA_SIGINFO;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3106 act.sa_handler = (void (*)(int)) SR_handler;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3107
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3108 // SR_signum is blocked by default.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3109 // 4528190 - We also need to block pthread restart signal (32 on all
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3110 // supported Linux platforms). Note that LinuxThreads need to block
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3111 // this signal for all threads to work properly. So we don't have
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3112 // to use hard-coded signal number when setting up the mask.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3113 pthread_sigmask(SIG_BLOCK, NULL, &act.sa_mask);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3114
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3115 if (sigaction(SR_signum, &act, 0) == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3116 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3117 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3118
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3119 // Save signal flag
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3120 os::Aix::set_our_sigflags(SR_signum, act.sa_flags);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3121 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3122 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3123
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3124 static int SR_finalize() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3125 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3126 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3127
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3128 static int sr_notify(OSThread* osthread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3129 int status = pthread_kill(osthread->pthread_id(), SR_signum);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3130 assert_status(status == 0, status, "pthread_kill");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3131 return status;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3132 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3133
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3134 // "Randomly" selected value for how long we want to spin
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3135 // before bailing out on suspending a thread, also how often
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3136 // we send a signal to a thread we want to resume
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3137 static const int RANDOMLY_LARGE_INTEGER = 1000000;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3138 static const int RANDOMLY_LARGE_INTEGER2 = 100;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3139
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3140 // returns true on success and false on error - really an error is fatal
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3141 // but this seems the normal response to library errors
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3142 static bool do_suspend(OSThread* osthread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3143 assert(osthread->sr.is_running(), "thread should be running");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3144 // mark as suspended and send signal
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3145
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3146 if (osthread->sr.request_suspend() != os::SuspendResume::SR_SUSPEND_REQUEST) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3147 // failed to switch, state wasn't running?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3148 ShouldNotReachHere();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3149 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3150 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3151
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3152 if (sr_notify(osthread) != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3153 // try to cancel, switch to running
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3154
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3155 os::SuspendResume::State result = osthread->sr.cancel_suspend();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3156 if (result == os::SuspendResume::SR_RUNNING) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3157 // cancelled
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3158 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3159 } else if (result == os::SuspendResume::SR_SUSPENDED) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3160 // somehow managed to suspend
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3161 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3162 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3163 ShouldNotReachHere();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3164 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3165 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3166 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3167
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3168 // managed to send the signal and switch to SUSPEND_REQUEST, now wait for SUSPENDED
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3169
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3170 for (int n = 0; !osthread->sr.is_suspended(); n++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3171 for (int i = 0; i < RANDOMLY_LARGE_INTEGER2 && !osthread->sr.is_suspended(); i++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3172 os::yield_all(i);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3173 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3174
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3175 // timeout, try to cancel the request
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3176 if (n >= RANDOMLY_LARGE_INTEGER) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3177 os::SuspendResume::State cancelled = osthread->sr.cancel_suspend();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3178 if (cancelled == os::SuspendResume::SR_RUNNING) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3179 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3180 } else if (cancelled == os::SuspendResume::SR_SUSPENDED) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3181 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3182 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3183 ShouldNotReachHere();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3184 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3185 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3186 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3187 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3188
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3189 guarantee(osthread->sr.is_suspended(), "Must be suspended");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3190 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3191 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3192
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3193 static void do_resume(OSThread* osthread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3194 //assert(osthread->sr.is_suspended(), "thread should be suspended");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3195
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3196 if (osthread->sr.request_wakeup() != os::SuspendResume::SR_WAKEUP_REQUEST) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3197 // failed to switch to WAKEUP_REQUEST
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3198 ShouldNotReachHere();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3199 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3200 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3201
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3202 while (!osthread->sr.is_running()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3203 if (sr_notify(osthread) == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3204 for (int n = 0; n < RANDOMLY_LARGE_INTEGER && !osthread->sr.is_running(); n++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3205 for (int i = 0; i < 100 && !osthread->sr.is_running(); i++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3206 os::yield_all(i);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3207 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3208 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3209 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3210 ShouldNotReachHere();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3211 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3212 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3213
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3214 guarantee(osthread->sr.is_running(), "Must be running!");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3215 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3216
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3217 ////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3218 // interrupt support
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3219
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3220 void os::interrupt(Thread* thread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3221 assert(Thread::current() == thread || Threads_lock->owned_by_self(),
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3222 "possibility of dangling Thread pointer");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3223
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3224 OSThread* osthread = thread->osthread();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3225
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3226 if (!osthread->interrupted()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3227 osthread->set_interrupted(true);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3228 // More than one thread can get here with the same value of osthread,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3229 // resulting in multiple notifications. We do, however, want the store
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3230 // to interrupted() to be visible to other threads before we execute unpark().
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3231 OrderAccess::fence();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3232 ParkEvent * const slp = thread->_SleepEvent;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3233 if (slp != NULL) slp->unpark();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3234 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3235
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3236 // For JSR166. Unpark even if interrupt status already was set
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3237 if (thread->is_Java_thread())
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3238 ((JavaThread*)thread)->parker()->unpark();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3239
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3240 ParkEvent * ev = thread->_ParkEvent;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3241 if (ev != NULL) ev->unpark();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3242
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3243 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3244
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3245 bool os::is_interrupted(Thread* thread, bool clear_interrupted) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3246 assert(Thread::current() == thread || Threads_lock->owned_by_self(),
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3247 "possibility of dangling Thread pointer");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3248
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3249 OSThread* osthread = thread->osthread();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3250
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3251 bool interrupted = osthread->interrupted();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3252
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3253 if (interrupted && clear_interrupted) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3254 osthread->set_interrupted(false);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3255 // consider thread->_SleepEvent->reset() ... optional optimization
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3256 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3257
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3258 return interrupted;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3259 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3260
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3261 ///////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3262 // signal handling (except suspend/resume)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3263
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3264 // This routine may be used by user applications as a "hook" to catch signals.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3265 // The user-defined signal handler must pass unrecognized signals to this
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3266 // routine, and if it returns true (non-zero), then the signal handler must
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3267 // return immediately. If the flag "abort_if_unrecognized" is true, then this
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3268 // routine will never retun false (zero), but instead will execute a VM panic
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3269 // routine kill the process.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3270 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3271 // If this routine returns false, it is OK to call it again. This allows
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3272 // the user-defined signal handler to perform checks either before or after
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3273 // the VM performs its own checks. Naturally, the user code would be making
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3274 // a serious error if it tried to handle an exception (such as a null check
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3275 // or breakpoint) that the VM was generating for its own correct operation.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3276 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3277 // This routine may recognize any of the following kinds of signals:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3278 // SIGBUS, SIGSEGV, SIGILL, SIGFPE, SIGQUIT, SIGPIPE, SIGXFSZ, SIGUSR1.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3279 // It should be consulted by handlers for any of those signals.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3280 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3281 // The caller of this routine must pass in the three arguments supplied
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3282 // to the function referred to in the "sa_sigaction" (not the "sa_handler")
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3283 // field of the structure passed to sigaction(). This routine assumes that
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3284 // the sa_flags field passed to sigaction() includes SA_SIGINFO and SA_RESTART.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3285 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3286 // Note that the VM will print warnings if it detects conflicting signal
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3287 // handlers, unless invoked with the option "-XX:+AllowUserSignalHandlers".
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3288 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3289 extern "C" JNIEXPORT int
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3290 JVM_handle_aix_signal(int signo, siginfo_t* siginfo, void* ucontext, int abort_if_unrecognized);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3291
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3292 // Set thread signal mask (for some reason on AIX sigthreadmask() seems
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3293 // to be the thing to call; documentation is not terribly clear about whether
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3294 // pthread_sigmask also works, and if it does, whether it does the same.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3295 bool set_thread_signal_mask(int how, const sigset_t* set, sigset_t* oset) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3296 const int rc = ::pthread_sigmask(how, set, oset);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3297 // return value semantics differ slightly for error case:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3298 // pthread_sigmask returns error number, sigthreadmask -1 and sets global errno
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3299 // (so, pthread_sigmask is more theadsafe for error handling)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3300 // But success is always 0.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3301 return rc == 0 ? true : false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3302 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3303
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3304 // Function to unblock all signals which are, according
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3305 // to POSIX, typical program error signals. If they happen while being blocked,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3306 // they typically will bring down the process immediately.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3307 bool unblock_program_error_signals() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3308 sigset_t set;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3309 ::sigemptyset(&set);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3310 ::sigaddset(&set, SIGILL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3311 ::sigaddset(&set, SIGBUS);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3312 ::sigaddset(&set, SIGFPE);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3313 ::sigaddset(&set, SIGSEGV);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3314 return set_thread_signal_mask(SIG_UNBLOCK, &set, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3315 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3316
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3317 // Renamed from 'signalHandler' to avoid collision with other shared libs.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3318 void javaSignalHandler(int sig, siginfo_t* info, void* uc) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3319 assert(info != NULL && uc != NULL, "it must be old kernel");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3320
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3321 // Never leave program error signals blocked;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3322 // on all our platforms they would bring down the process immediately when
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3323 // getting raised while being blocked.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3324 unblock_program_error_signals();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3325
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3326 JVM_handle_aix_signal(sig, info, uc, true);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3327 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3328
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3329
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3330 // This boolean allows users to forward their own non-matching signals
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3331 // to JVM_handle_aix_signal, harmlessly.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3332 bool os::Aix::signal_handlers_are_installed = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3333
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3334 // For signal-chaining
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3335 struct sigaction os::Aix::sigact[MAXSIGNUM];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3336 unsigned int os::Aix::sigs = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3337 bool os::Aix::libjsig_is_loaded = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3338 typedef struct sigaction *(*get_signal_t)(int);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3339 get_signal_t os::Aix::get_signal_action = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3340
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3341 struct sigaction* os::Aix::get_chained_signal_action(int sig) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3342 struct sigaction *actp = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3343
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3344 if (libjsig_is_loaded) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3345 // Retrieve the old signal handler from libjsig
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3346 actp = (*get_signal_action)(sig);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3347 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3348 if (actp == NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3349 // Retrieve the preinstalled signal handler from jvm
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3350 actp = get_preinstalled_handler(sig);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3351 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3352
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3353 return actp;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3354 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3355
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3356 static bool call_chained_handler(struct sigaction *actp, int sig,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3357 siginfo_t *siginfo, void *context) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3358 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3359 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3360 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3361
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3362 bool os::Aix::chained_handler(int sig, siginfo_t* siginfo, void* context) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3363 bool chained = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3364 // signal-chaining
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3365 if (UseSignalChaining) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3366 struct sigaction *actp = get_chained_signal_action(sig);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3367 if (actp != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3368 chained = call_chained_handler(actp, sig, siginfo, context);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3369 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3370 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3371 return chained;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3372 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3373
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3374 struct sigaction* os::Aix::get_preinstalled_handler(int sig) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3375 if ((((unsigned int)1 << sig) & sigs) != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3376 return &sigact[sig];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3377 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3378 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3379 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3380
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3381 void os::Aix::save_preinstalled_handler(int sig, struct sigaction& oldAct) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3382 assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3383 sigact[sig] = oldAct;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3384 sigs |= (unsigned int)1 << sig;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3385 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3386
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3387 // for diagnostic
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3388 int os::Aix::sigflags[MAXSIGNUM];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3389
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3390 int os::Aix::get_our_sigflags(int sig) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3391 assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3392 return sigflags[sig];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3393 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3394
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3395 void os::Aix::set_our_sigflags(int sig, int flags) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3396 assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3397 sigflags[sig] = flags;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3398 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3399
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3400 void os::Aix::set_signal_handler(int sig, bool set_installed) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3401 // Check for overwrite.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3402 struct sigaction oldAct;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3403 sigaction(sig, (struct sigaction*)NULL, &oldAct);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3404
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3405 void* oldhand = oldAct.sa_sigaction
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3406 ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3407 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3408 // Renamed 'signalHandler' to avoid collision with other shared libs.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3409 if (oldhand != CAST_FROM_FN_PTR(void*, SIG_DFL) &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3410 oldhand != CAST_FROM_FN_PTR(void*, SIG_IGN) &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3411 oldhand != CAST_FROM_FN_PTR(void*, (sa_sigaction_t)javaSignalHandler)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3412 if (AllowUserSignalHandlers || !set_installed) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3413 // Do not overwrite; user takes responsibility to forward to us.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3414 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3415 } else if (UseSignalChaining) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3416 // save the old handler in jvm
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3417 save_preinstalled_handler(sig, oldAct);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3418 // libjsig also interposes the sigaction() call below and saves the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3419 // old sigaction on it own.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3420 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3421 fatal(err_msg("Encountered unexpected pre-existing sigaction handler "
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3422 "%#lx for signal %d.", (long)oldhand, sig));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3423 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3424 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3425
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3426 struct sigaction sigAct;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3427 sigfillset(&(sigAct.sa_mask));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3428 if (!set_installed) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3429 sigAct.sa_handler = SIG_DFL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3430 sigAct.sa_flags = SA_RESTART;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3431 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3432 // Renamed 'signalHandler' to avoid collision with other shared libs.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3433 sigAct.sa_sigaction = javaSignalHandler;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3434 sigAct.sa_flags = SA_SIGINFO|SA_RESTART;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3435 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3436 // Save flags, which are set by ours
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3437 assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3438 sigflags[sig] = sigAct.sa_flags;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3439
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3440 int ret = sigaction(sig, &sigAct, &oldAct);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3441 assert(ret == 0, "check");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3442
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3443 void* oldhand2 = oldAct.sa_sigaction
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3444 ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3445 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3446 assert(oldhand2 == oldhand, "no concurrent signal handler installation");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3447 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3448
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3449 // install signal handlers for signals that HotSpot needs to
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3450 // handle in order to support Java-level exception handling.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3451 void os::Aix::install_signal_handlers() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3452 if (!signal_handlers_are_installed) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3453 signal_handlers_are_installed = true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3454
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3455 // signal-chaining
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3456 typedef void (*signal_setting_t)();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3457 signal_setting_t begin_signal_setting = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3458 signal_setting_t end_signal_setting = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3459 begin_signal_setting = CAST_TO_FN_PTR(signal_setting_t,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3460 dlsym(RTLD_DEFAULT, "JVM_begin_signal_setting"));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3461 if (begin_signal_setting != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3462 end_signal_setting = CAST_TO_FN_PTR(signal_setting_t,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3463 dlsym(RTLD_DEFAULT, "JVM_end_signal_setting"));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3464 get_signal_action = CAST_TO_FN_PTR(get_signal_t,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3465 dlsym(RTLD_DEFAULT, "JVM_get_signal_action"));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3466 libjsig_is_loaded = true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3467 assert(UseSignalChaining, "should enable signal-chaining");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3468 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3469 if (libjsig_is_loaded) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3470 // Tell libjsig jvm is setting signal handlers
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3471 (*begin_signal_setting)();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3472 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3473
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3474 set_signal_handler(SIGSEGV, true);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3475 set_signal_handler(SIGPIPE, true);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3476 set_signal_handler(SIGBUS, true);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3477 set_signal_handler(SIGILL, true);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3478 set_signal_handler(SIGFPE, true);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3479 set_signal_handler(SIGTRAP, true);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3480 set_signal_handler(SIGXFSZ, true);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3481 set_signal_handler(SIGDANGER, true);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3482
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3483 if (libjsig_is_loaded) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3484 // Tell libjsig jvm finishes setting signal handlers
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3485 (*end_signal_setting)();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3486 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3487
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3488 // We don't activate signal checker if libjsig is in place, we trust ourselves
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3489 // and if UserSignalHandler is installed all bets are off.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3490 // Log that signal checking is off only if -verbose:jni is specified.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3491 if (CheckJNICalls) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3492 if (libjsig_is_loaded) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3493 tty->print_cr("Info: libjsig is activated, all active signal checking is disabled");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3494 check_signals = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3495 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3496 if (AllowUserSignalHandlers) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3497 tty->print_cr("Info: AllowUserSignalHandlers is activated, all active signal checking is disabled");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3498 check_signals = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3499 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3500 // need to initialize check_signal_done
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3501 ::sigemptyset(&check_signal_done);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3502 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3503 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3504 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3505
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3506 static const char* get_signal_handler_name(address handler,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3507 char* buf, int buflen) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3508 int offset;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3509 bool found = os::dll_address_to_library_name(handler, buf, buflen, &offset);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3510 if (found) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3511 // skip directory names
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3512 const char *p1, *p2;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3513 p1 = buf;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3514 size_t len = strlen(os::file_separator());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3515 while ((p2 = strstr(p1, os::file_separator())) != NULL) p1 = p2 + len;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3516 // The way os::dll_address_to_library_name is implemented on Aix
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3517 // right now, it always returns -1 for the offset which is not
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3518 // terribly informative.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3519 // Will fix that. For now, omit the offset.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3520 jio_snprintf(buf, buflen, "%s", p1);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3521 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3522 jio_snprintf(buf, buflen, PTR_FORMAT, handler);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3523 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3524 return buf;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3525 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3526
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3527 static void print_signal_handler(outputStream* st, int sig,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3528 char* buf, size_t buflen) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3529 struct sigaction sa;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3530 sigaction(sig, NULL, &sa);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3531
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3532 st->print("%s: ", os::exception_name(sig, buf, buflen));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3533
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3534 address handler = (sa.sa_flags & SA_SIGINFO)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3535 ? CAST_FROM_FN_PTR(address, sa.sa_sigaction)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3536 : CAST_FROM_FN_PTR(address, sa.sa_handler);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3537
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3538 if (handler == CAST_FROM_FN_PTR(address, SIG_DFL)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3539 st->print("SIG_DFL");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3540 } else if (handler == CAST_FROM_FN_PTR(address, SIG_IGN)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3541 st->print("SIG_IGN");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3542 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3543 st->print("[%s]", get_signal_handler_name(handler, buf, buflen));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3544 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3545
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3546 // Print readable mask.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3547 st->print(", sa_mask[0]=");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3548 os::Posix::print_signal_set_short(st, &sa.sa_mask);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3549
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3550 address rh = VMError::get_resetted_sighandler(sig);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3551 // May be, handler was resetted by VMError?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3552 if (rh != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3553 handler = rh;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3554 sa.sa_flags = VMError::get_resetted_sigflags(sig);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3555 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3556
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3557 // Print textual representation of sa_flags.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3558 st->print(", sa_flags=");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3559 os::Posix::print_sa_flags(st, sa.sa_flags);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3560
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3561 // Check: is it our handler?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3562 if (handler == CAST_FROM_FN_PTR(address, (sa_sigaction_t)javaSignalHandler) ||
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3563 handler == CAST_FROM_FN_PTR(address, (sa_sigaction_t)SR_handler)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3564 // It is our signal handler.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3565 // Check for flags, reset system-used one!
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3566 if ((int)sa.sa_flags != os::Aix::get_our_sigflags(sig)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3567 st->print(", flags was changed from " PTR32_FORMAT ", consider using jsig library",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3568 os::Aix::get_our_sigflags(sig));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3569 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3570 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3571 st->cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3572 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3573
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3574
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3575 #define DO_SIGNAL_CHECK(sig) \
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3576 if (!sigismember(&check_signal_done, sig)) \
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3577 os::Aix::check_signal_handler(sig)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3578
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3579 // This method is a periodic task to check for misbehaving JNI applications
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3580 // under CheckJNI, we can add any periodic checks here
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3581
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3582 void os::run_periodic_checks() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3583
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3584 if (check_signals == false) return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3585
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3586 // SEGV and BUS if overridden could potentially prevent
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3587 // generation of hs*.log in the event of a crash, debugging
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3588 // such a case can be very challenging, so we absolutely
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3589 // check the following for a good measure:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3590 DO_SIGNAL_CHECK(SIGSEGV);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3591 DO_SIGNAL_CHECK(SIGILL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3592 DO_SIGNAL_CHECK(SIGFPE);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3593 DO_SIGNAL_CHECK(SIGBUS);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3594 DO_SIGNAL_CHECK(SIGPIPE);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3595 DO_SIGNAL_CHECK(SIGXFSZ);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3596 if (UseSIGTRAP) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3597 DO_SIGNAL_CHECK(SIGTRAP);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3598 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3599 DO_SIGNAL_CHECK(SIGDANGER);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3600
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3601 // ReduceSignalUsage allows the user to override these handlers
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3602 // see comments at the very top and jvm_solaris.h
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3603 if (!ReduceSignalUsage) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3604 DO_SIGNAL_CHECK(SHUTDOWN1_SIGNAL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3605 DO_SIGNAL_CHECK(SHUTDOWN2_SIGNAL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3606 DO_SIGNAL_CHECK(SHUTDOWN3_SIGNAL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3607 DO_SIGNAL_CHECK(BREAK_SIGNAL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3608 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3609
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3610 DO_SIGNAL_CHECK(SR_signum);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3611 DO_SIGNAL_CHECK(INTERRUPT_SIGNAL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3612 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3613
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3614 typedef int (*os_sigaction_t)(int, const struct sigaction *, struct sigaction *);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3615
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3616 static os_sigaction_t os_sigaction = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3617
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3618 void os::Aix::check_signal_handler(int sig) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3619 char buf[O_BUFLEN];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3620 address jvmHandler = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3621
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3622 struct sigaction act;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3623 if (os_sigaction == NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3624 // only trust the default sigaction, in case it has been interposed
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3625 os_sigaction = (os_sigaction_t)dlsym(RTLD_DEFAULT, "sigaction");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3626 if (os_sigaction == NULL) return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3627 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3628
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3629 os_sigaction(sig, (struct sigaction*)NULL, &act);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3630
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3631 address thisHandler = (act.sa_flags & SA_SIGINFO)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3632 ? CAST_FROM_FN_PTR(address, act.sa_sigaction)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3633 : CAST_FROM_FN_PTR(address, act.sa_handler);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3634
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3635
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3636 switch(sig) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3637 case SIGSEGV:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3638 case SIGBUS:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3639 case SIGFPE:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3640 case SIGPIPE:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3641 case SIGILL:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3642 case SIGXFSZ:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3643 // Renamed 'signalHandler' to avoid collision with other shared libs.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3644 jvmHandler = CAST_FROM_FN_PTR(address, (sa_sigaction_t)javaSignalHandler);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3645 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3646
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3647 case SHUTDOWN1_SIGNAL:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3648 case SHUTDOWN2_SIGNAL:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3649 case SHUTDOWN3_SIGNAL:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3650 case BREAK_SIGNAL:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3651 jvmHandler = (address)user_handler();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3652 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3653
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3654 case INTERRUPT_SIGNAL:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3655 jvmHandler = CAST_FROM_FN_PTR(address, SIG_DFL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3656 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3657
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3658 default:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3659 if (sig == SR_signum) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3660 jvmHandler = CAST_FROM_FN_PTR(address, (sa_sigaction_t)SR_handler);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3661 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3662 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3663 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3664 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3665 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3666
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3667 if (thisHandler != jvmHandler) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3668 tty->print("Warning: %s handler ", exception_name(sig, buf, O_BUFLEN));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3669 tty->print("expected:%s", get_signal_handler_name(jvmHandler, buf, O_BUFLEN));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3670 tty->print_cr(" found:%s", get_signal_handler_name(thisHandler, buf, O_BUFLEN));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3671 // No need to check this sig any longer
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3672 sigaddset(&check_signal_done, sig);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3673 } else if (os::Aix::get_our_sigflags(sig) != 0 && (int)act.sa_flags != os::Aix::get_our_sigflags(sig)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3674 tty->print("Warning: %s handler flags ", exception_name(sig, buf, O_BUFLEN));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3675 tty->print("expected:" PTR32_FORMAT, os::Aix::get_our_sigflags(sig));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3676 tty->print_cr(" found:" PTR32_FORMAT, act.sa_flags);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3677 // No need to check this sig any longer
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3678 sigaddset(&check_signal_done, sig);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3679 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3680
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3681 // Dump all the signal
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3682 if (sigismember(&check_signal_done, sig)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3683 print_signal_handlers(tty, buf, O_BUFLEN);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3684 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3685 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3686
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3687 extern bool signal_name(int signo, char* buf, size_t len);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3688
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3689 const char* os::exception_name(int exception_code, char* buf, size_t size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3690 if (0 < exception_code && exception_code <= SIGRTMAX) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3691 // signal
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3692 if (!signal_name(exception_code, buf, size)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3693 jio_snprintf(buf, size, "SIG%d", exception_code);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3694 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3695 return buf;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3696 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3697 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3698 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3699 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3700
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3701 // To install functions for atexit system call
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3702 extern "C" {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3703 static void perfMemory_exit_helper() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3704 perfMemory_exit();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3705 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3706 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3707
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3708 // This is called _before_ the most of global arguments have been parsed.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3709 void os::init(void) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3710 // This is basic, we want to know if that ever changes.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3711 // (shared memory boundary is supposed to be a 256M aligned)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3712 assert(SHMLBA == ((uint64_t)0x10000000ULL)/*256M*/, "unexpected");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3713
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3714 // First off, we need to know whether we run on AIX or PASE, and
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3715 // the OS level we run on.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3716 os::Aix::initialize_os_info();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3717
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3718 // Scan environment (SPEC1170 behaviour, etc)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3719 os::Aix::scan_environment();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3720
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3721 // Check which pages are supported by AIX.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3722 os::Aix::query_multipage_support();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3723
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3724 // Next, we need to initialize libo4 and libperfstat libraries.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3725 if (os::Aix::on_pase()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3726 os::Aix::initialize_libo4();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3727 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3728 os::Aix::initialize_libperfstat();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3729 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3730
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3731 // Reset the perfstat information provided by ODM.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3732 if (os::Aix::on_aix()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3733 libperfstat::perfstat_reset();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3734 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3735
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3736 // Now initialze basic system properties. Note that for some of the values we
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3737 // need libperfstat etc.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3738 os::Aix::initialize_system_info();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3739
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3740 // Initialize large page support.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3741 if (UseLargePages) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3742 os::large_page_init();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3743 if (!UseLargePages) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3744 // initialize os::_page_sizes
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3745 _page_sizes[0] = Aix::page_size();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3746 _page_sizes[1] = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3747 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3748 fprintf(stderr, "Large Page initialization failed: setting UseLargePages=0.\n");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3749 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3750 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3751 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3752 // initialize os::_page_sizes
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3753 _page_sizes[0] = Aix::page_size();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3754 _page_sizes[1] = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3755 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3756
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3757 // debug trace
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3758 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3759 fprintf(stderr, "os::vm_page_size 0x%llX\n", os::vm_page_size());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3760 fprintf(stderr, "os::large_page_size 0x%llX\n", os::large_page_size());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3761 fprintf(stderr, "os::_page_sizes = ( ");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3762 for (int i = 0; _page_sizes[i]; i ++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3763 fprintf(stderr, " %s ", describe_pagesize(_page_sizes[i]));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3764 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3765 fprintf(stderr, ")\n");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3766 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3767
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3768 _initial_pid = getpid();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3769
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3770 clock_tics_per_sec = sysconf(_SC_CLK_TCK);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3771
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3772 init_random(1234567);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3773
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3774 ThreadCritical::initialize();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3775
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3776 // Main_thread points to the aboriginal thread.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3777 Aix::_main_thread = pthread_self();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3778
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3779 initial_time_count = os::elapsed_counter();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3780 pthread_mutex_init(&dl_mutex, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3781 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3782
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3783 // this is called _after_ the global arguments have been parsed
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3784 jint os::init_2(void) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3785
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3786 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3787 fprintf(stderr, "processor count: %d\n", os::_processor_count);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3788 fprintf(stderr, "physical memory: %lu\n", Aix::_physical_memory);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3789 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3790
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3791 // initially build up the loaded dll map
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3792 LoadedLibraries::reload();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3793
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3794 const int page_size = Aix::page_size();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3795 const int map_size = page_size;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3796
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3797 address map_address = (address) MAP_FAILED;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3798 const int prot = PROT_READ;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3799 const int flags = MAP_PRIVATE|MAP_ANONYMOUS;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3800
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3801 // use optimized addresses for the polling page,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3802 // e.g. map it to a special 32-bit address.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3803 if (OptimizePollingPageLocation) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3804 // architecture-specific list of address wishes:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3805 address address_wishes[] = {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3806 // AIX: addresses lower than 0x30000000 don't seem to work on AIX.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3807 // PPC64: all address wishes are non-negative 32 bit values where
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3808 // the lower 16 bits are all zero. we can load these addresses
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3809 // with a single ppc_lis instruction.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3810 (address) 0x30000000, (address) 0x31000000,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3811 (address) 0x32000000, (address) 0x33000000,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3812 (address) 0x40000000, (address) 0x41000000,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3813 (address) 0x42000000, (address) 0x43000000,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3814 (address) 0x50000000, (address) 0x51000000,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3815 (address) 0x52000000, (address) 0x53000000,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3816 (address) 0x60000000, (address) 0x61000000,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3817 (address) 0x62000000, (address) 0x63000000
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3818 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3819 int address_wishes_length = sizeof(address_wishes)/sizeof(address);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3820
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3821 // iterate over the list of address wishes:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3822 for (int i=0; i<address_wishes_length; i++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3823 // try to map with current address wish.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3824 // AIX: AIX needs MAP_FIXED if we provide an address and mmap will
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3825 // fail if the address is already mapped.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3826 map_address = (address) ::mmap(address_wishes[i] - (ssize_t)page_size,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3827 map_size, prot,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3828 flags | MAP_FIXED,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3829 -1, 0);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3830 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3831 fprintf(stderr, "SafePoint Polling Page address: %p (wish) => %p\n",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3832 address_wishes[i], map_address + (ssize_t)page_size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3833 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3834
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3835 if (map_address + (ssize_t)page_size == address_wishes[i]) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3836 // map succeeded and map_address is at wished address, exit loop.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3837 break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3838 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3839
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3840 if (map_address != (address) MAP_FAILED) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3841 // map succeeded, but polling_page is not at wished address, unmap and continue.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3842 ::munmap(map_address, map_size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3843 map_address = (address) MAP_FAILED;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3844 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3845 // map failed, continue loop.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3846 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3847 } // end OptimizePollingPageLocation
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3848
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3849 if (map_address == (address) MAP_FAILED) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3850 map_address = (address) ::mmap(NULL, map_size, prot, flags, -1, 0);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3851 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3852 guarantee(map_address != MAP_FAILED, "os::init_2: failed to allocate polling page");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3853 os::set_polling_page(map_address);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3854
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3855 if (!UseMembar) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3856 address mem_serialize_page = (address) ::mmap(NULL, Aix::page_size(), PROT_READ | PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3857 guarantee(mem_serialize_page != NULL, "mmap Failed for memory serialize page");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3858 os::set_memory_serialize_page(mem_serialize_page);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3859
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3860 #ifndef PRODUCT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3861 if (Verbose && PrintMiscellaneous)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3862 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3863 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3864 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3865
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3866 // initialize suspend/resume support - must do this before signal_sets_init()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3867 if (SR_initialize() != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3868 perror("SR_initialize failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3869 return JNI_ERR;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3870 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3871
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3872 Aix::signal_sets_init();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3873 Aix::install_signal_handlers();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3874
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3875 // Check minimum allowable stack size for thread creation and to initialize
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3876 // the java system classes, including StackOverflowError - depends on page
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3877 // size. Add a page for compiler2 recursion in main thread.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3878 // Add in 2*BytesPerWord times page size to account for VM stack during
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3879 // class initialization depending on 32 or 64 bit VM.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3880 os::Aix::min_stack_allowed = MAX2(os::Aix::min_stack_allowed,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3881 (size_t)(StackYellowPages+StackRedPages+StackShadowPages +
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3882 2*BytesPerWord COMPILER2_PRESENT(+1)) * Aix::page_size());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3883
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3884 size_t threadStackSizeInBytes = ThreadStackSize * K;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3885 if (threadStackSizeInBytes != 0 &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3886 threadStackSizeInBytes < os::Aix::min_stack_allowed) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3887 tty->print_cr("\nThe stack size specified is too small, "
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3888 "Specify at least %dk",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3889 os::Aix::min_stack_allowed / K);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3890 return JNI_ERR;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3891 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3892
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3893 // Make the stack size a multiple of the page size so that
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3894 // the yellow/red zones can be guarded.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3895 // note that this can be 0, if no default stacksize was set
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3896 JavaThread::set_stack_size_at_create(round_to(threadStackSizeInBytes, vm_page_size()));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3897
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3898 Aix::libpthread_init();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3899
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3900 if (MaxFDLimit) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3901 // set the number of file descriptors to max. print out error
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3902 // if getrlimit/setrlimit fails but continue regardless.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3903 struct rlimit nbr_files;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3904 int status = getrlimit(RLIMIT_NOFILE, &nbr_files);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3905 if (status != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3906 if (PrintMiscellaneous && (Verbose || WizardMode))
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3907 perror("os::init_2 getrlimit failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3908 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3909 nbr_files.rlim_cur = nbr_files.rlim_max;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3910 status = setrlimit(RLIMIT_NOFILE, &nbr_files);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3911 if (status != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3912 if (PrintMiscellaneous && (Verbose || WizardMode))
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3913 perror("os::init_2 setrlimit failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3914 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3915 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3916 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3917
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3918 if (PerfAllowAtExitRegistration) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3919 // only register atexit functions if PerfAllowAtExitRegistration is set.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3920 // atexit functions can be delayed until process exit time, which
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3921 // can be problematic for embedded VM situations. Embedded VMs should
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3922 // call DestroyJavaVM() to assure that VM resources are released.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3923
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3924 // note: perfMemory_exit_helper atexit function may be removed in
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3925 // the future if the appropriate cleanup code can be added to the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3926 // VM_Exit VMOperation's doit method.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3927 if (atexit(perfMemory_exit_helper) != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3928 warning("os::init_2 atexit(perfMemory_exit_helper) failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3929 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3930 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3931
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3932 return JNI_OK;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3933 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3934
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3935 // this is called at the end of vm_initialization
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3936 void os::init_3(void) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3937 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3938 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3939
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3940 // Mark the polling page as unreadable
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3941 void os::make_polling_page_unreadable(void) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3942 if (!guard_memory((char*)_polling_page, Aix::page_size())) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3943 fatal("Could not disable polling page");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3944 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3945 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3946
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3947 // Mark the polling page as readable
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3948 void os::make_polling_page_readable(void) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3949 // Changed according to os_linux.cpp.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3950 if (!checked_mprotect((char *)_polling_page, Aix::page_size(), PROT_READ)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3951 fatal(err_msg("Could not enable polling page at " PTR_FORMAT, _polling_page));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3952 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3953 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3954
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3955 int os::active_processor_count() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3956 int online_cpus = ::sysconf(_SC_NPROCESSORS_ONLN);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3957 assert(online_cpus > 0 && online_cpus <= processor_count(), "sanity check");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3958 return online_cpus;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3959 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3960
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3961 void os::set_native_thread_name(const char *name) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3962 // Not yet implemented.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3963 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3964 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3965
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3966 bool os::distribute_processes(uint length, uint* distribution) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3967 // Not yet implemented.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3968 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3969 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3970
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3971 bool os::bind_to_processor(uint processor_id) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3972 // Not yet implemented.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3973 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3974 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3975
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3976 void os::SuspendedThreadTask::internal_do_task() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3977 if (do_suspend(_thread->osthread())) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3978 SuspendedThreadTaskContext context(_thread, _thread->osthread()->ucontext());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3979 do_task(context);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3980 do_resume(_thread->osthread());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3981 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3982 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3983
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3984 class PcFetcher : public os::SuspendedThreadTask {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3985 public:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3986 PcFetcher(Thread* thread) : os::SuspendedThreadTask(thread) {}
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3987 ExtendedPC result();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3988 protected:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3989 void do_task(const os::SuspendedThreadTaskContext& context);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3990 private:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3991 ExtendedPC _epc;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3992 };
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3993
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3994 ExtendedPC PcFetcher::result() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3995 guarantee(is_done(), "task is not done yet.");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3996 return _epc;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3997 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3998
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
3999 void PcFetcher::do_task(const os::SuspendedThreadTaskContext& context) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4000 Thread* thread = context.thread();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4001 OSThread* osthread = thread->osthread();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4002 if (osthread->ucontext() != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4003 _epc = os::Aix::ucontext_get_pc((ucontext_t *) context.ucontext());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4004 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4005 // NULL context is unexpected, double-check this is the VMThread.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4006 guarantee(thread->is_VM_thread(), "can only be called for VMThread");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4007 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4008 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4009
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4010 // Suspends the target using the signal mechanism and then grabs the PC before
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4011 // resuming the target. Used by the flat-profiler only
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4012 ExtendedPC os::get_thread_pc(Thread* thread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4013 // Make sure that it is called by the watcher for the VMThread.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4014 assert(Thread::current()->is_Watcher_thread(), "Must be watcher");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4015 assert(thread->is_VM_thread(), "Can only be called for VMThread");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4016
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4017 PcFetcher fetcher(thread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4018 fetcher.run();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4019 return fetcher.result();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4020 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4021
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4022 // Not neede on Aix.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4023 // int os::Aix::safe_cond_timedwait(pthread_cond_t *_cond, pthread_mutex_t *_mutex, const struct timespec *_abstime) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4024 // }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4025
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4026 ////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4027 // debug support
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4028
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4029 static address same_page(address x, address y) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4030 intptr_t page_bits = -os::vm_page_size();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4031 if ((intptr_t(x) & page_bits) == (intptr_t(y) & page_bits))
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4032 return x;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4033 else if (x > y)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4034 return (address)(intptr_t(y) | ~page_bits) + 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4035 else
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4036 return (address)(intptr_t(y) & page_bits);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4037 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4038
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4039 bool os::find(address addr, outputStream* st) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4040 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4041 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4042 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4043
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4044 ////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4045 // misc
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4046
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4047 // This does not do anything on Aix. This is basically a hook for being
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4048 // able to use structured exception handling (thread-local exception filters)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4049 // on, e.g., Win32.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4050 void
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4051 os::os_exception_wrapper(java_call_t f, JavaValue* value, methodHandle* method,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4052 JavaCallArguments* args, Thread* thread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4053 f(value, method, args, thread);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4054 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4055
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4056 void os::print_statistics() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4057 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4058
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4059 int os::message_box(const char* title, const char* message) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4060 int i;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4061 fdStream err(defaultStream::error_fd());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4062 for (i = 0; i < 78; i++) err.print_raw("=");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4063 err.cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4064 err.print_raw_cr(title);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4065 for (i = 0; i < 78; i++) err.print_raw("-");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4066 err.cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4067 err.print_raw_cr(message);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4068 for (i = 0; i < 78; i++) err.print_raw("=");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4069 err.cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4070
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4071 char buf[16];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4072 // Prevent process from exiting upon "read error" without consuming all CPU
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4073 while (::read(0, buf, sizeof(buf)) <= 0) { ::sleep(100); }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4074
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4075 return buf[0] == 'y' || buf[0] == 'Y';
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4076 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4077
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4078 int os::stat(const char *path, struct stat *sbuf) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4079 char pathbuf[MAX_PATH];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4080 if (strlen(path) > MAX_PATH - 1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4081 errno = ENAMETOOLONG;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4082 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4083 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4084 os::native_path(strcpy(pathbuf, path));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4085 return ::stat(pathbuf, sbuf);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4086 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4087
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4088 bool os::check_heap(bool force) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4089 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4090 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4091
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4092 // int local_vsnprintf(char* buf, size_t count, const char* format, va_list args) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4093 // return ::vsnprintf(buf, count, format, args);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4094 // }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4095
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4096 // Is a (classpath) directory empty?
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4097 bool os::dir_is_empty(const char* path) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4098 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4099 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4100 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4101
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4102 // This code originates from JDK's sysOpen and open64_w
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4103 // from src/solaris/hpi/src/system_md.c
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4104
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4105 #ifndef O_DELETE
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4106 #define O_DELETE 0x10000
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4107 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4108
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4109 // Open a file. Unlink the file immediately after open returns
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4110 // if the specified oflag has the O_DELETE flag set.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4111 // O_DELETE is used only in j2se/src/share/native/java/util/zip/ZipFile.c
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4112
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4113 int os::open(const char *path, int oflag, int mode) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4114
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4115 if (strlen(path) > MAX_PATH - 1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4116 errno = ENAMETOOLONG;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4117 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4118 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4119 int fd;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4120 int o_delete = (oflag & O_DELETE);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4121 oflag = oflag & ~O_DELETE;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4122
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4123 fd = ::open64(path, oflag, mode);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4124 if (fd == -1) return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4125
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4126 //If the open succeeded, the file might still be a directory
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4127 {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4128 struct stat64 buf64;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4129 int ret = ::fstat64(fd, &buf64);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4130 int st_mode = buf64.st_mode;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4131
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4132 if (ret != -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4133 if ((st_mode & S_IFMT) == S_IFDIR) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4134 errno = EISDIR;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4135 ::close(fd);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4136 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4137 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4138 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4139 ::close(fd);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4140 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4141 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4142 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4143
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4144 // All file descriptors that are opened in the JVM and not
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4145 // specifically destined for a subprocess should have the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4146 // close-on-exec flag set. If we don't set it, then careless 3rd
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4147 // party native code might fork and exec without closing all
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4148 // appropriate file descriptors (e.g. as we do in closeDescriptors in
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4149 // UNIXProcess.c), and this in turn might:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4150 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4151 // - cause end-of-file to fail to be detected on some file
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4152 // descriptors, resulting in mysterious hangs, or
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4153 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4154 // - might cause an fopen in the subprocess to fail on a system
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4155 // suffering from bug 1085341.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4156 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4157 // (Yes, the default setting of the close-on-exec flag is a Unix
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4158 // design flaw.)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4159 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4160 // See:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4161 // 1085341: 32-bit stdio routines should support file descriptors >255
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4162 // 4843136: (process) pipe file descriptor from Runtime.exec not being closed
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4163 // 6339493: (process) Runtime.exec does not close all file descriptors on Solaris 9
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4164 #ifdef FD_CLOEXEC
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4165 {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4166 int flags = ::fcntl(fd, F_GETFD);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4167 if (flags != -1)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4168 ::fcntl(fd, F_SETFD, flags | FD_CLOEXEC);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4169 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4170 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4171
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4172 if (o_delete != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4173 ::unlink(path);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4174 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4175 return fd;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4176 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4177
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4178
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4179 // create binary file, rewriting existing file if required
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4180 int os::create_binary_file(const char* path, bool rewrite_existing) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4181 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4182 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4183 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4184
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4185 // return current position of file pointer
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4186 jlong os::current_file_offset(int fd) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4187 return (jlong)::lseek64(fd, (off64_t)0, SEEK_CUR);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4188 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4189
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4190 // move file pointer to the specified offset
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4191 jlong os::seek_to_file_offset(int fd, jlong offset) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4192 return (jlong)::lseek64(fd, (off64_t)offset, SEEK_SET);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4193 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4194
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4195 // This code originates from JDK's sysAvailable
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4196 // from src/solaris/hpi/src/native_threads/src/sys_api_td.c
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4197
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4198 int os::available(int fd, jlong *bytes) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4199 jlong cur, end;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4200 int mode;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4201 struct stat64 buf64;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4202
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4203 if (::fstat64(fd, &buf64) >= 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4204 mode = buf64.st_mode;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4205 if (S_ISCHR(mode) || S_ISFIFO(mode) || S_ISSOCK(mode)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4206 // XXX: is the following call interruptible? If so, this might
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4207 // need to go through the INTERRUPT_IO() wrapper as for other
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4208 // blocking, interruptible calls in this file.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4209 int n;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4210 if (::ioctl(fd, FIONREAD, &n) >= 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4211 *bytes = n;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4212 return 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4213 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4214 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4215 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4216 if ((cur = ::lseek64(fd, 0L, SEEK_CUR)) == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4217 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4218 } else if ((end = ::lseek64(fd, 0L, SEEK_END)) == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4219 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4220 } else if (::lseek64(fd, cur, SEEK_SET) == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4221 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4222 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4223 *bytes = end - cur;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4224 return 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4225 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4226
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4227 int os::socket_available(int fd, jint *pbytes) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4228 // Linux doc says EINTR not returned, unlike Solaris
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4229 int ret = ::ioctl(fd, FIONREAD, pbytes);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4230
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4231 //%% note ioctl can return 0 when successful, JVM_SocketAvailable
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4232 // is expected to return 0 on failure and 1 on success to the jdk.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4233 return (ret < 0) ? 0 : 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4234 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4235
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4236 // Map a block of memory.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4237 char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4238 char *addr, size_t bytes, bool read_only,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4239 bool allow_exec) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4240 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4241 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4242 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4243
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4244
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4245 // Remap a block of memory.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4246 char* os::pd_remap_memory(int fd, const char* file_name, size_t file_offset,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4247 char *addr, size_t bytes, bool read_only,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4248 bool allow_exec) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4249 // same as map_memory() on this OS
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4250 return os::map_memory(fd, file_name, file_offset, addr, bytes, read_only,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4251 allow_exec);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4252 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4253
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4254 // Unmap a block of memory.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4255 bool os::pd_unmap_memory(char* addr, size_t bytes) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4256 return munmap(addr, bytes) == 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4257 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4258
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4259 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4260 // are used by JVM M&M and JVMTI to get user+sys or user CPU time
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4261 // of a thread.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4262 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4263 // current_thread_cpu_time() and thread_cpu_time(Thread*) returns
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4264 // the fast estimate available on the platform.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4265
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4266 jlong os::current_thread_cpu_time() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4267 // return user + sys since the cost is the same
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4268 const jlong n = os::thread_cpu_time(Thread::current(), true /* user + sys */);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4269 assert(n >= 0, "negative CPU time");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4270 return n;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4271 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4272
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4273 jlong os::thread_cpu_time(Thread* thread) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4274 // consistent with what current_thread_cpu_time() returns
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4275 const jlong n = os::thread_cpu_time(thread, true /* user + sys */);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4276 assert(n >= 0, "negative CPU time");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4277 return n;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4278 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4279
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4280 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4281 const jlong n = os::thread_cpu_time(Thread::current(), user_sys_cpu_time);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4282 assert(n >= 0, "negative CPU time");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4283 return n;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4284 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4285
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4286 static bool thread_cpu_time_unchecked(Thread* thread, jlong* p_sys_time, jlong* p_user_time) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4287 bool error = false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4288
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4289 jlong sys_time = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4290 jlong user_time = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4291
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4292 // reimplemented using getthrds64().
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4293 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4294 // goes like this:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4295 // For the thread in question, get the kernel thread id. Then get the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4296 // kernel thread statistics using that id.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4297 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4298 // This only works of course when no pthread scheduling is used,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4299 // ie there is a 1:1 relationship to kernel threads.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4300 // On AIX, see AIXTHREAD_SCOPE variable.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4301
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4302 pthread_t pthtid = thread->osthread()->pthread_id();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4303
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4304 // retrieve kernel thread id for the pthread:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4305 tid64_t tid = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4306 struct __pthrdsinfo pinfo;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4307 // I just love those otherworldly IBM APIs which force me to hand down
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4308 // dummy buffers for stuff I dont care for...
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4309 char dummy[1];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4310 int dummy_size = sizeof(dummy);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4311 if (pthread_getthrds_np(&pthtid, PTHRDSINFO_QUERY_TID, &pinfo, sizeof(pinfo),
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4312 dummy, &dummy_size) == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4313 tid = pinfo.__pi_tid;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4314 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4315 tty->print_cr("pthread_getthrds_np failed.");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4316 error = true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4317 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4318
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4319 // retrieve kernel timing info for that kernel thread
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4320 if (!error) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4321 struct thrdentry64 thrdentry;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4322 if (getthrds64(getpid(), &thrdentry, sizeof(thrdentry), &tid, 1) == 1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4323 sys_time = thrdentry.ti_ru.ru_stime.tv_sec * 1000000000LL + thrdentry.ti_ru.ru_stime.tv_usec * 1000LL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4324 user_time = thrdentry.ti_ru.ru_utime.tv_sec * 1000000000LL + thrdentry.ti_ru.ru_utime.tv_usec * 1000LL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4325 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4326 tty->print_cr("pthread_getthrds_np failed.");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4327 error = true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4328 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4329 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4330
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4331 if (p_sys_time) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4332 *p_sys_time = sys_time;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4333 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4334
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4335 if (p_user_time) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4336 *p_user_time = user_time;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4337 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4338
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4339 if (error) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4340 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4341 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4342
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4343 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4344 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4345
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4346 jlong os::thread_cpu_time(Thread *thread, bool user_sys_cpu_time) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4347 jlong sys_time;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4348 jlong user_time;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4349
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4350 if (!thread_cpu_time_unchecked(thread, &sys_time, &user_time)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4351 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4352 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4353
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4354 return user_sys_cpu_time ? sys_time + user_time : user_time;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4355 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4356
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4357 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4358 info_ptr->max_value = ALL_64_BITS; // will not wrap in less than 64 bits
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4359 info_ptr->may_skip_backward = false; // elapsed time not wall time
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4360 info_ptr->may_skip_forward = false; // elapsed time not wall time
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4361 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4362 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4363
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4364 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4365 info_ptr->max_value = ALL_64_BITS; // will not wrap in less than 64 bits
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4366 info_ptr->may_skip_backward = false; // elapsed time not wall time
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4367 info_ptr->may_skip_forward = false; // elapsed time not wall time
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4368 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4369 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4370
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4371 bool os::is_thread_cpu_time_supported() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4372 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4373 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4374
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4375 // System loadavg support. Returns -1 if load average cannot be obtained.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4376 // For now just return the system wide load average (no processor sets).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4377 int os::loadavg(double values[], int nelem) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4378
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4379 // Implemented using libperfstat on AIX.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4380
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4381 guarantee(nelem >= 0 && nelem <= 3, "argument error");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4382 guarantee(values, "argument error");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4383
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4384 if (os::Aix::on_pase()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4385 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4386 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4387 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4388 // AIX: use libperfstat
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4389 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4390 // See also:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4391 // http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.basetechref/doc/basetrf1/perfstat_cputot.htm
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4392 // /usr/include/libperfstat.h:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4393
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4394 // Use the already AIX version independent get_cpuinfo.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4395 os::Aix::cpuinfo_t ci;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4396 if (os::Aix::get_cpuinfo(&ci)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4397 for (int i = 0; i < nelem; i++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4398 values[i] = ci.loadavg[i];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4399 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4400 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4401 return -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4402 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4403 return nelem;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4404 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4405 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4406
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4407 void os::pause() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4408 char filename[MAX_PATH];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4409 if (PauseAtStartupFile && PauseAtStartupFile[0]) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4410 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4411 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4412 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4413 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4414
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4415 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4416 if (fd != -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4417 struct stat buf;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4418 ::close(fd);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4419 while (::stat(filename, &buf) == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4420 (void)::poll(NULL, 0, 100);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4421 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4422 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4423 jio_fprintf(stderr,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4424 "Could not open pause file '%s', continuing immediately.\n", filename);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4425 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4426 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4427
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4428 bool os::Aix::is_primordial_thread() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4429 if (pthread_self() == (pthread_t)1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4430 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4431 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4432 return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4433 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4434 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4435
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4436 // OS recognitions (PASE/AIX, OS level) call this before calling any
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4437 // one of Aix::on_pase(), Aix::os_version() static
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4438 void os::Aix::initialize_os_info() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4439
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4440 assert(_on_pase == -1 && _os_version == -1, "already called.");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4441
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4442 struct utsname uts;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4443 memset(&uts, 0, sizeof(uts));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4444 strcpy(uts.sysname, "?");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4445 if (::uname(&uts) == -1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4446 fprintf(stderr, "uname failed (%d)\n", errno);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4447 guarantee(0, "Could not determine whether we run on AIX or PASE");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4448 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4449 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4450 fprintf(stderr,"uname says: sysname \"%s\" version \"%s\" release \"%s\" "
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4451 "node \"%s\" machine \"%s\"\n",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4452 uts.sysname, uts.version, uts.release, uts.nodename, uts.machine);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4453 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4454 const int major = atoi(uts.version);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4455 assert(major > 0, "invalid OS version");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4456 const int minor = atoi(uts.release);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4457 assert(minor > 0, "invalid OS release");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4458 _os_version = (major << 8) | minor;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4459 if (strcmp(uts.sysname, "OS400") == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4460 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4461 } else if (strcmp(uts.sysname, "AIX") == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4462 // We run on AIX. We do not support versions older than AIX 5.3.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4463 _on_pase = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4464 if (_os_version < 0x0503) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4465 fprintf(stderr, "AIX release older than AIX 5.3 not supported.\n");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4466 assert(false, "AIX release too old.");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4467 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4468 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4469 fprintf(stderr, "We run on AIX %d.%d\n", major, minor);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4470 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4471 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4472 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4473 assert(false, "unknown OS");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4474 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4475 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4476
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4477 guarantee(_on_pase != -1 && _os_version, "Could not determine AIX/OS400 release");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4478
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4479 } // end: os::Aix::initialize_os_info()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4480
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4481 // Scan environment for important settings which might effect the VM.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4482 // Trace out settings. Warn about invalid settings and/or correct them.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4483 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4484 // Must run after os::Aix::initialue_os_info().
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4485 void os::Aix::scan_environment() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4486
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4487 char* p;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4488 int rc;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4489
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4490 // Warn explicity if EXTSHM=ON is used. That switch changes how
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4491 // System V shared memory behaves. One effect is that page size of
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4492 // shared memory cannot be change dynamically, effectivly preventing
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4493 // large pages from working.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4494 // This switch was needed on AIX 32bit, but on AIX 64bit the general
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4495 // recommendation is (in OSS notes) to switch it off.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4496 p = ::getenv("EXTSHM");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4497 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4498 fprintf(stderr, "EXTSHM=%s.\n", p ? p : "<unset>");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4499 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4500 if (p && strcmp(p, "ON") == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4501 fprintf(stderr, "Unsupported setting: EXTSHM=ON. Large Page support will be disabled.\n");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4502 _extshm = 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4503 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4504 _extshm = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4505 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4506
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4507 // SPEC1170 behaviour: will change the behaviour of a number of POSIX APIs.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4508 // Not tested, not supported.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4509 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4510 // Note that it might be worth the trouble to test and to require it, if only to
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4511 // get useful return codes for mprotect.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4512 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4513 // Note: Setting XPG_SUS_ENV in the process is too late. Must be set earlier (before
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4514 // exec() ? before loading the libjvm ? ....)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4515 p = ::getenv("XPG_SUS_ENV");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4516 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4517 fprintf(stderr, "XPG_SUS_ENV=%s.\n", p ? p : "<unset>");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4518 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4519 if (p && strcmp(p, "ON") == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4520 _xpg_sus_mode = 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4521 fprintf(stderr, "Unsupported setting: XPG_SUS_ENV=ON\n");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4522 // This is not supported. Worst of all, it changes behaviour of mmap MAP_FIXED to
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4523 // clobber address ranges. If we ever want to support that, we have to do some
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4524 // testing first.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4525 guarantee(false, "XPG_SUS_ENV=ON not supported");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4526 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4527 _xpg_sus_mode = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4528 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4529
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4530 // Switch off AIX internal (pthread) guard pages. This has
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4531 // immediate effect for any pthread_create calls which follow.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4532 p = ::getenv("AIXTHREAD_GUARDPAGES");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4533 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4534 fprintf(stderr, "AIXTHREAD_GUARDPAGES=%s.\n", p ? p : "<unset>");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4535 fprintf(stderr, "setting AIXTHREAD_GUARDPAGES=0.\n");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4536 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4537 rc = ::putenv("AIXTHREAD_GUARDPAGES=0");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4538 guarantee(rc == 0, "");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4539
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4540 } // end: os::Aix::scan_environment()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4541
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4542 // PASE: initialize the libo4 library (AS400 PASE porting library).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4543 void os::Aix::initialize_libo4() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4544 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4545 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4546
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4547 // AIX: initialize the libperfstat library (we load this dynamically
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4548 // because it is only available on AIX.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4549 void os::Aix::initialize_libperfstat() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4550
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4551 assert(os::Aix::on_aix(), "AIX only");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4552
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4553 if (!libperfstat::init()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4554 fprintf(stderr, "libperfstat initialization failed.\n");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4555 assert(false, "libperfstat initialization failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4556 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4557 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4558 fprintf(stderr, "libperfstat initialized.\n");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4559 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4560 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4561 } // end: os::Aix::initialize_libperfstat
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4562
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4563 /////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4564 // thread stack
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4565
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4566 // function to query the current stack size using pthread_getthrds_np
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4567 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4568 // ! do not change anything here unless you know what you are doing !
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4569 static void query_stack_dimensions(address* p_stack_base, size_t* p_stack_size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4570
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4571 // This only works when invoked on a pthread. As we agreed not to use
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4572 // primordial threads anyway, I assert here
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4573 guarantee(!os::Aix::is_primordial_thread(), "not allowed on the primordial thread");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4574
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4575 // information about this api can be found (a) in the pthread.h header and
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4576 // (b) in http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.basetechref/doc/basetrf1/pthread_getthrds_np.htm
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4577 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4578 // The use of this API to find out the current stack is kind of undefined.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4579 // But after a lot of tries and asking IBM about it, I concluded that it is safe
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4580 // enough for cases where I let the pthread library create its stacks. For cases
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4581 // where I create an own stack and pass this to pthread_create, it seems not to
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4582 // work (the returned stack size in that case is 0).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4583
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4584 pthread_t tid = pthread_self();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4585 struct __pthrdsinfo pinfo;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4586 char dummy[1]; // we only need this to satisfy the api and to not get E
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4587 int dummy_size = sizeof(dummy);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4588
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4589 memset(&pinfo, 0, sizeof(pinfo));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4590
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4591 const int rc = pthread_getthrds_np (&tid, PTHRDSINFO_QUERY_ALL, &pinfo,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4592 sizeof(pinfo), dummy, &dummy_size);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4593
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4594 if (rc != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4595 fprintf(stderr, "pthread_getthrds_np failed (%d)\n", rc);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4596 guarantee(0, "pthread_getthrds_np failed");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4597 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4598
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4599 guarantee(pinfo.__pi_stackend, "returned stack base invalid");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4600
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4601 // the following can happen when invoking pthread_getthrds_np on a pthread running on a user provided stack
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4602 // (when handing down a stack to pthread create, see pthread_attr_setstackaddr).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4603 // Not sure what to do here - I feel inclined to forbid this use case completely.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4604 guarantee(pinfo.__pi_stacksize, "returned stack size invalid");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4605
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4606 // On AIX, stacks are not necessarily page aligned so round the base and size accordingly
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4607 if (p_stack_base) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4608 (*p_stack_base) = (address) align_size_up((intptr_t)pinfo.__pi_stackend, os::Aix::stack_page_size());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4609 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4610
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4611 if (p_stack_size) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4612 (*p_stack_size) = pinfo.__pi_stacksize - os::Aix::stack_page_size();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4613 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4614
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4615 #ifndef PRODUCT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4616 if (Verbose) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4617 fprintf(stderr,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4618 "query_stack_dimensions() -> real stack_base=" INTPTR_FORMAT ", real stack_addr=" INTPTR_FORMAT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4619 ", real stack_size=" INTPTR_FORMAT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4620 ", stack_base=" INTPTR_FORMAT ", stack_size=" INTPTR_FORMAT "\n",
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4621 (intptr_t)pinfo.__pi_stackend, (intptr_t)pinfo.__pi_stackaddr, pinfo.__pi_stacksize,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4622 (intptr_t)align_size_up((intptr_t)pinfo.__pi_stackend, os::Aix::stack_page_size()),
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4623 pinfo.__pi_stacksize - os::Aix::stack_page_size());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4624 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4625 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4626
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4627 } // end query_stack_dimensions
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4628
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4629 // get the current stack base from the OS (actually, the pthread library)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4630 address os::current_stack_base() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4631 address p;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4632 query_stack_dimensions(&p, 0);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4633 return p;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4634 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4635
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4636 // get the current stack size from the OS (actually, the pthread library)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4637 size_t os::current_stack_size() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4638 size_t s;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4639 query_stack_dimensions(0, &s);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4640 return s;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4641 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4642
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4643 // Refer to the comments in os_solaris.cpp park-unpark.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4644 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4645 // Beware -- Some versions of NPTL embody a flaw where pthread_cond_timedwait() can
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4646 // hang indefinitely. For instance NPTL 0.60 on 2.4.21-4ELsmp is vulnerable.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4647 // For specifics regarding the bug see GLIBC BUGID 261237 :
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4648 // http://www.mail-archive.com/debian-glibc@lists.debian.org/msg10837.html.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4649 // Briefly, pthread_cond_timedwait() calls with an expiry time that's not in the future
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4650 // will either hang or corrupt the condvar, resulting in subsequent hangs if the condvar
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4651 // is used. (The simple C test-case provided in the GLIBC bug report manifests the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4652 // hang). The JVM is vulernable via sleep(), Object.wait(timo), LockSupport.parkNanos()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4653 // and monitorenter when we're using 1-0 locking. All those operations may result in
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4654 // calls to pthread_cond_timedwait(). Using LD_ASSUME_KERNEL to use an older version
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4655 // of libpthread avoids the problem, but isn't practical.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4656 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4657 // Possible remedies:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4658 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4659 // 1. Establish a minimum relative wait time. 50 to 100 msecs seems to work.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4660 // This is palliative and probabilistic, however. If the thread is preempted
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4661 // between the call to compute_abstime() and pthread_cond_timedwait(), more
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4662 // than the minimum period may have passed, and the abstime may be stale (in the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4663 // past) resultin in a hang. Using this technique reduces the odds of a hang
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4664 // but the JVM is still vulnerable, particularly on heavily loaded systems.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4665 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4666 // 2. Modify park-unpark to use per-thread (per ParkEvent) pipe-pairs instead
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4667 // of the usual flag-condvar-mutex idiom. The write side of the pipe is set
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4668 // NDELAY. unpark() reduces to write(), park() reduces to read() and park(timo)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4669 // reduces to poll()+read(). This works well, but consumes 2 FDs per extant
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4670 // thread.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4671 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4672 // 3. Embargo pthread_cond_timedwait() and implement a native "chron" thread
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4673 // that manages timeouts. We'd emulate pthread_cond_timedwait() by enqueuing
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4674 // a timeout request to the chron thread and then blocking via pthread_cond_wait().
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4675 // This also works well. In fact it avoids kernel-level scalability impediments
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4676 // on certain platforms that don't handle lots of active pthread_cond_timedwait()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4677 // timers in a graceful fashion.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4678 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4679 // 4. When the abstime value is in the past it appears that control returns
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4680 // correctly from pthread_cond_timedwait(), but the condvar is left corrupt.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4681 // Subsequent timedwait/wait calls may hang indefinitely. Given that, we
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4682 // can avoid the problem by reinitializing the condvar -- by cond_destroy()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4683 // followed by cond_init() -- after all calls to pthread_cond_timedwait().
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4684 // It may be possible to avoid reinitialization by checking the return
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4685 // value from pthread_cond_timedwait(). In addition to reinitializing the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4686 // condvar we must establish the invariant that cond_signal() is only called
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4687 // within critical sections protected by the adjunct mutex. This prevents
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4688 // cond_signal() from "seeing" a condvar that's in the midst of being
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4689 // reinitialized or that is corrupt. Sadly, this invariant obviates the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4690 // desirable signal-after-unlock optimization that avoids futile context switching.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4691 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4692 // I'm also concerned that some versions of NTPL might allocate an auxilliary
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4693 // structure when a condvar is used or initialized. cond_destroy() would
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4694 // release the helper structure. Our reinitialize-after-timedwait fix
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4695 // put excessive stress on malloc/free and locks protecting the c-heap.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4696 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4697 // We currently use (4). See the WorkAroundNTPLTimedWaitHang flag.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4698 // It may be possible to refine (4) by checking the kernel and NTPL verisons
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4699 // and only enabling the work-around for vulnerable environments.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4700
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4701 // utility to compute the abstime argument to timedwait:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4702 // millis is the relative timeout time
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4703 // abstime will be the absolute timeout time
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4704 // TODO: replace compute_abstime() with unpackTime()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4705
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4706 static struct timespec* compute_abstime(timespec* abstime, jlong millis) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4707 if (millis < 0) millis = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4708 struct timeval now;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4709 int status = gettimeofday(&now, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4710 assert(status == 0, "gettimeofday");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4711 jlong seconds = millis / 1000;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4712 millis %= 1000;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4713 if (seconds > 50000000) { // see man cond_timedwait(3T)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4714 seconds = 50000000;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4715 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4716 abstime->tv_sec = now.tv_sec + seconds;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4717 long usec = now.tv_usec + millis * 1000;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4718 if (usec >= 1000000) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4719 abstime->tv_sec += 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4720 usec -= 1000000;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4721 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4722 abstime->tv_nsec = usec * 1000;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4723 return abstime;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4724 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4725
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4726
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4727 // Test-and-clear _Event, always leaves _Event set to 0, returns immediately.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4728 // Conceptually TryPark() should be equivalent to park(0).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4729
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4730 int os::PlatformEvent::TryPark() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4731 for (;;) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4732 const int v = _Event;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4733 guarantee ((v == 0) || (v == 1), "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4734 if (Atomic::cmpxchg (0, &_Event, v) == v) return v;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4735 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4736 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4737
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4738 void os::PlatformEvent::park() { // AKA "down()"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4739 // Invariant: Only the thread associated with the Event/PlatformEvent
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4740 // may call park().
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4741 // TODO: assert that _Assoc != NULL or _Assoc == Self
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4742 int v;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4743 for (;;) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4744 v = _Event;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4745 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4746 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4747 guarantee (v >= 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4748 if (v == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4749 // Do this the hard way by blocking ...
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4750 int status = pthread_mutex_lock(_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4751 assert_status(status == 0, status, "mutex_lock");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4752 guarantee (_nParked == 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4753 ++ _nParked;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4754 while (_Event < 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4755 status = pthread_cond_wait(_cond, _mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4756 assert_status(status == 0 || status == ETIMEDOUT, status, "cond_timedwait");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4757 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4758 -- _nParked;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4759
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4760 // In theory we could move the ST of 0 into _Event past the unlock(),
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4761 // but then we'd need a MEMBAR after the ST.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4762 _Event = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4763 status = pthread_mutex_unlock(_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4764 assert_status(status == 0, status, "mutex_unlock");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4765 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4766 guarantee (_Event >= 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4767 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4768
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4769 int os::PlatformEvent::park(jlong millis) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4770 guarantee (_nParked == 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4771
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4772 int v;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4773 for (;;) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4774 v = _Event;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4775 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4776 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4777 guarantee (v >= 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4778 if (v != 0) return OS_OK;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4779
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4780 // We do this the hard way, by blocking the thread.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4781 // Consider enforcing a minimum timeout value.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4782 struct timespec abst;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4783 compute_abstime(&abst, millis);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4784
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4785 int ret = OS_TIMEOUT;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4786 int status = pthread_mutex_lock(_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4787 assert_status(status == 0, status, "mutex_lock");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4788 guarantee (_nParked == 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4789 ++_nParked;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4790
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4791 // Object.wait(timo) will return because of
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4792 // (a) notification
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4793 // (b) timeout
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4794 // (c) thread.interrupt
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4795 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4796 // Thread.interrupt and object.notify{All} both call Event::set.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4797 // That is, we treat thread.interrupt as a special case of notification.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4798 // The underlying Solaris implementation, cond_timedwait, admits
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4799 // spurious/premature wakeups, but the JLS/JVM spec prevents the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4800 // JVM from making those visible to Java code. As such, we must
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4801 // filter out spurious wakeups. We assume all ETIME returns are valid.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4802 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4803 // TODO: properly differentiate simultaneous notify+interrupt.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4804 // In that case, we should propagate the notify to another waiter.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4805
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4806 while (_Event < 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4807 status = pthread_cond_timedwait(_cond, _mutex, &abst);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4808 assert_status(status == 0 || status == ETIMEDOUT,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4809 status, "cond_timedwait");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4810 if (!FilterSpuriousWakeups) break; // previous semantics
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4811 if (status == ETIMEDOUT) break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4812 // We consume and ignore EINTR and spurious wakeups.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4813 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4814 --_nParked;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4815 if (_Event >= 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4816 ret = OS_OK;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4817 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4818 _Event = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4819 status = pthread_mutex_unlock(_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4820 assert_status(status == 0, status, "mutex_unlock");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4821 assert (_nParked == 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4822 return ret;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4823 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4824
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4825 void os::PlatformEvent::unpark() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4826 int v, AnyWaiters;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4827 for (;;) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4828 v = _Event;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4829 if (v > 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4830 // The LD of _Event could have reordered or be satisfied
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4831 // by a read-aside from this processor's write buffer.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4832 // To avoid problems execute a barrier and then
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4833 // ratify the value.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4834 OrderAccess::fence();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4835 if (_Event == v) return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4836 continue;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4837 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4838 if (Atomic::cmpxchg (v+1, &_Event, v) == v) break;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4839 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4840 if (v < 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4841 // Wait for the thread associated with the event to vacate
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4842 int status = pthread_mutex_lock(_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4843 assert_status(status == 0, status, "mutex_lock");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4844 AnyWaiters = _nParked;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4845
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4846 if (AnyWaiters != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4847 // We intentional signal *after* dropping the lock
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4848 // to avoid a common class of futile wakeups.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4849 status = pthread_cond_signal(_cond);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4850 assert_status(status == 0, status, "cond_signal");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4851 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4852 // Mutex should be locked for pthread_cond_signal(_cond).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4853 status = pthread_mutex_unlock(_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4854 assert_status(status == 0, status, "mutex_unlock");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4855 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4856
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4857 // Note that we signal() _after dropping the lock for "immortal" Events.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4858 // This is safe and avoids a common class of futile wakeups. In rare
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4859 // circumstances this can cause a thread to return prematurely from
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4860 // cond_{timed}wait() but the spurious wakeup is benign and the victim will
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4861 // simply re-test the condition and re-park itself.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4862 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4863
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4864
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4865 // JSR166
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4866 // -------------------------------------------------------
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4867
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4868 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4869 // The solaris and linux implementations of park/unpark are fairly
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4870 // conservative for now, but can be improved. They currently use a
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4871 // mutex/condvar pair, plus a a count.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4872 // Park decrements count if > 0, else does a condvar wait. Unpark
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4873 // sets count to 1 and signals condvar. Only one thread ever waits
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4874 // on the condvar. Contention seen when trying to park implies that someone
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4875 // is unparking you, so don't wait. And spurious returns are fine, so there
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4876 // is no need to track notifications.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4877 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4878
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4879 #define MAX_SECS 100000000
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4880 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4881 // This code is common to linux and solaris and will be moved to a
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4882 // common place in dolphin.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4883 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4884 // The passed in time value is either a relative time in nanoseconds
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4885 // or an absolute time in milliseconds. Either way it has to be unpacked
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4886 // into suitable seconds and nanoseconds components and stored in the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4887 // given timespec structure.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4888 // Given time is a 64-bit value and the time_t used in the timespec is only
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4889 // a signed-32-bit value (except on 64-bit Linux) we have to watch for
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4890 // overflow if times way in the future are given. Further on Solaris versions
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4891 // prior to 10 there is a restriction (see cond_timedwait) that the specified
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4892 // number of seconds, in abstime, is less than current_time + 100,000,000.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4893 // As it will be 28 years before "now + 100000000" will overflow we can
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4894 // ignore overflow and just impose a hard-limit on seconds using the value
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4895 // of "now + 100,000,000". This places a limit on the timeout of about 3.17
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4896 // years from "now".
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4897 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4898
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4899 static void unpackTime(timespec* absTime, bool isAbsolute, jlong time) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4900 assert (time > 0, "convertTime");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4901
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4902 struct timeval now;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4903 int status = gettimeofday(&now, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4904 assert(status == 0, "gettimeofday");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4905
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4906 time_t max_secs = now.tv_sec + MAX_SECS;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4907
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4908 if (isAbsolute) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4909 jlong secs = time / 1000;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4910 if (secs > max_secs) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4911 absTime->tv_sec = max_secs;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4912 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4913 else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4914 absTime->tv_sec = secs;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4915 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4916 absTime->tv_nsec = (time % 1000) * NANOSECS_PER_MILLISEC;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4917 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4918 else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4919 jlong secs = time / NANOSECS_PER_SEC;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4920 if (secs >= MAX_SECS) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4921 absTime->tv_sec = max_secs;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4922 absTime->tv_nsec = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4923 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4924 else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4925 absTime->tv_sec = now.tv_sec + secs;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4926 absTime->tv_nsec = (time % NANOSECS_PER_SEC) + now.tv_usec*1000;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4927 if (absTime->tv_nsec >= NANOSECS_PER_SEC) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4928 absTime->tv_nsec -= NANOSECS_PER_SEC;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4929 ++absTime->tv_sec; // note: this must be <= max_secs
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4930 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4931 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4932 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4933 assert(absTime->tv_sec >= 0, "tv_sec < 0");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4934 assert(absTime->tv_sec <= max_secs, "tv_sec > max_secs");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4935 assert(absTime->tv_nsec >= 0, "tv_nsec < 0");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4936 assert(absTime->tv_nsec < NANOSECS_PER_SEC, "tv_nsec >= nanos_per_sec");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4937 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4938
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4939 void Parker::park(bool isAbsolute, jlong time) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4940 // Optional fast-path check:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4941 // Return immediately if a permit is available.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4942 if (_counter > 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4943 _counter = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4944 OrderAccess::fence();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4945 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4946 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4947
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4948 Thread* thread = Thread::current();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4949 assert(thread->is_Java_thread(), "Must be JavaThread");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4950 JavaThread *jt = (JavaThread *)thread;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4951
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4952 // Optional optimization -- avoid state transitions if there's an interrupt pending.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4953 // Check interrupt before trying to wait
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4954 if (Thread::is_interrupted(thread, false)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4955 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4956 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4957
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4958 // Next, demultiplex/decode time arguments
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4959 timespec absTime;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4960 if (time < 0 || (isAbsolute && time == 0)) { // don't wait at all
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4961 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4962 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4963 if (time > 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4964 unpackTime(&absTime, isAbsolute, time);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4965 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4966
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4967
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4968 // Enter safepoint region
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4969 // Beware of deadlocks such as 6317397.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4970 // The per-thread Parker:: mutex is a classic leaf-lock.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4971 // In particular a thread must never block on the Threads_lock while
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4972 // holding the Parker:: mutex. If safepoints are pending both the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4973 // the ThreadBlockInVM() CTOR and DTOR may grab Threads_lock.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4974 ThreadBlockInVM tbivm(jt);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4975
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4976 // Don't wait if cannot get lock since interference arises from
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4977 // unblocking. Also. check interrupt before trying wait
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4978 if (Thread::is_interrupted(thread, false) || pthread_mutex_trylock(_mutex) != 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4979 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4980 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4981
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4982 int status;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4983 if (_counter > 0) { // no wait needed
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4984 _counter = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4985 status = pthread_mutex_unlock(_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4986 assert (status == 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4987 OrderAccess::fence();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4988 return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4989 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4990
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4991 #ifdef ASSERT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4992 // Don't catch signals while blocked; let the running threads have the signals.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4993 // (This allows a debugger to break into the running thread.)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4994 sigset_t oldsigs;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4995 sigset_t* allowdebug_blocked = os::Aix::allowdebug_blocked_signals();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4996 pthread_sigmask(SIG_BLOCK, allowdebug_blocked, &oldsigs);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4997 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4998
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
4999 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5000 jt->set_suspend_equivalent();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5001 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5002
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5003 if (time == 0) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5004 status = pthread_cond_wait (_cond, _mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5005 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5006 status = pthread_cond_timedwait (_cond, _mutex, &absTime);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5007 if (status != 0 && WorkAroundNPTLTimedWaitHang) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5008 pthread_cond_destroy (_cond);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5009 pthread_cond_init (_cond, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5010 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5011 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5012 assert_status(status == 0 || status == EINTR ||
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5013 status == ETIME || status == ETIMEDOUT,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5014 status, "cond_timedwait");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5015
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5016 #ifdef ASSERT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5017 pthread_sigmask(SIG_SETMASK, &oldsigs, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5018 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5019
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5020 _counter = 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5021 status = pthread_mutex_unlock(_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5022 assert_status(status == 0, status, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5023 // If externally suspended while waiting, re-suspend
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5024 if (jt->handle_special_suspend_equivalent_condition()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5025 jt->java_suspend_self();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5026 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5027
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5028 OrderAccess::fence();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5029 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5030
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5031 void Parker::unpark() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5032 int s, status;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5033 status = pthread_mutex_lock(_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5034 assert (status == 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5035 s = _counter;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5036 _counter = 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5037 if (s < 1) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5038 if (WorkAroundNPTLTimedWaitHang) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5039 status = pthread_cond_signal (_cond);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5040 assert (status == 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5041 status = pthread_mutex_unlock(_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5042 assert (status == 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5043 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5044 status = pthread_mutex_unlock(_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5045 assert (status == 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5046 status = pthread_cond_signal (_cond);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5047 assert (status == 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5048 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5049 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5050 pthread_mutex_unlock(_mutex);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5051 assert (status == 0, "invariant");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5052 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5053 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5054
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5055
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5056 extern char** environ;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5057
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5058 // Run the specified command in a separate process. Return its exit value,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5059 // or -1 on failure (e.g. can't fork a new process).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5060 // Unlike system(), this function can be called from signal handler. It
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5061 // doesn't block SIGINT et al.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5062 int os::fork_and_exec(char* cmd) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5063 Unimplemented();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5064 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5065 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5066
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5067 // is_headless_jre()
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5068 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5069 // Test for the existence of xawt/libmawt.so or libawt_xawt.so
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5070 // in order to report if we are running in a headless jre.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5071 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5072 // Since JDK8 xawt/libmawt.so is moved into the same directory
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5073 // as libawt.so, and renamed libawt_xawt.so
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5074 bool os::is_headless_jre() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5075 struct stat statbuf;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5076 char buf[MAXPATHLEN];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5077 char libmawtpath[MAXPATHLEN];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5078 const char *xawtstr = "/xawt/libmawt.so";
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5079 const char *new_xawtstr = "/libawt_xawt.so";
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5080
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5081 char *p;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5082
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5083 // Get path to libjvm.so
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5084 os::jvm_path(buf, sizeof(buf));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5085
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5086 // Get rid of libjvm.so
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5087 p = strrchr(buf, '/');
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5088 if (p == NULL) return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5089 else *p = '\0';
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5090
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5091 // Get rid of client or server
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5092 p = strrchr(buf, '/');
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5093 if (p == NULL) return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5094 else *p = '\0';
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5095
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5096 // check xawt/libmawt.so
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5097 strcpy(libmawtpath, buf);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5098 strcat(libmawtpath, xawtstr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5099 if (::stat(libmawtpath, &statbuf) == 0) return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5100
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5101 // check libawt_xawt.so
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5102 strcpy(libmawtpath, buf);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5103 strcat(libmawtpath, new_xawtstr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5104 if (::stat(libmawtpath, &statbuf) == 0) return false;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5105
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5106 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5107 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5108
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5109 // Get the default path to the core file
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5110 // Returns the length of the string
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5111 int os::get_core_path(char* buffer, size_t bufferSize) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5112 const char* p = get_current_directory(buffer, bufferSize);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5113
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5114 if (p == NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5115 assert(p != NULL, "failed to get current directory");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5116 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5117 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5118
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5119 return strlen(buffer);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5120 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5121
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5122 #ifndef PRODUCT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5123 void TestReserveMemorySpecial_test() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5124 // No tests available for this platform
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5125 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff changeset
5126 #endif