Mercurial > hg > truffle
annotate src/os/aix/vm/os_aix.cpp @ 14511:7e8e4d1a41d6
8035970: PPC64: fix ad file after 8027754: Enable loop optimizations for loops with MathExact
Reviewed-by: kvn
author | goetz |
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date | Thu, 27 Feb 2014 20:40:24 +0100 |
parents | 3ef193f311ed |
children | 97586c131ac8 |
rev | line source |
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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 |
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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 os::Aix::meminfo_t mi; |
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231 if (os::Aix::get_meminfo(&mi)) { |
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232 return mi.real_free; |
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233 } else { |
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234 return 0xFFFFFFFFFFFFFFFFLL; |
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235 } |
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236 } |
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237 |
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238 julong os::physical_memory() { |
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239 return Aix::physical_memory(); |
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240 } |
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241 |
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242 //////////////////////////////////////////////////////////////////////////////// |
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243 // environment support |
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244 |
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245 bool os::getenv(const char* name, char* buf, int len) { |
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246 const char* val = ::getenv(name); |
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247 if (val != NULL && strlen(val) < (size_t)len) { |
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248 strcpy(buf, val); |
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249 return true; |
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250 } |
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251 if (len > 0) buf[0] = 0; // return a null string |
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252 return false; |
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253 } |
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254 |
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255 |
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256 // Return true if user is running as root. |
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257 |
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258 bool os::have_special_privileges() { |
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259 static bool init = false; |
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260 static bool privileges = false; |
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261 if (!init) { |
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262 privileges = (getuid() != geteuid()) || (getgid() != getegid()); |
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263 init = true; |
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264 } |
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265 return privileges; |
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266 } |
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267 |
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268 // Helper function, emulates disclaim64 using multiple 32bit disclaims |
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269 // because we cannot use disclaim64() on AS/400 and old AIX releases. |
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270 static bool my_disclaim64(char* addr, size_t size) { |
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271 |
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272 if (size == 0) { |
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273 return true; |
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274 } |
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275 |
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276 // Maximum size 32bit disclaim() accepts. (Theoretically 4GB, but I just do not trust that.) |
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277 const unsigned int maxDisclaimSize = 0x80000000; |
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278 |
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279 const unsigned int numFullDisclaimsNeeded = (size / maxDisclaimSize); |
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280 const unsigned int lastDisclaimSize = (size % maxDisclaimSize); |
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281 |
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282 char* p = addr; |
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283 |
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284 for (int i = 0; i < numFullDisclaimsNeeded; i ++) { |
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285 if (::disclaim(p, maxDisclaimSize, DISCLAIM_ZEROMEM) != 0) { |
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286 //if (Verbose) |
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287 fprintf(stderr, "Cannot disclaim %p - %p (errno %d)\n", p, p + maxDisclaimSize, errno); |
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288 return false; |
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289 } |
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290 p += maxDisclaimSize; |
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291 } |
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292 |
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293 if (lastDisclaimSize > 0) { |
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294 if (::disclaim(p, lastDisclaimSize, DISCLAIM_ZEROMEM) != 0) { |
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295 //if (Verbose) |
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296 fprintf(stderr, "Cannot disclaim %p - %p (errno %d)\n", p, p + lastDisclaimSize, errno); |
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297 return false; |
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298 } |
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299 } |
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300 |
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301 return true; |
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302 } |
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303 |
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304 // Cpu architecture string |
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305 #if defined(PPC32) |
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306 static char cpu_arch[] = "ppc"; |
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307 #elif defined(PPC64) |
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308 static char cpu_arch[] = "ppc64"; |
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309 #else |
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310 #error Add appropriate cpu_arch setting |
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311 #endif |
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312 |
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313 |
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314 // Given an address, returns the size of the page backing that address. |
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315 size_t os::Aix::query_pagesize(void* addr) { |
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316 |
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317 vm_page_info pi; |
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318 pi.addr = (uint64_t)addr; |
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319 if (::vmgetinfo(&pi, VM_PAGE_INFO, sizeof(pi)) == 0) { |
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320 return pi.pagesize; |
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321 } else { |
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322 fprintf(stderr, "vmgetinfo failed to retrieve page size for address %p (errno %d).\n", addr, errno); |
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323 assert(false, "vmgetinfo failed to retrieve page size"); |
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324 return SIZE_4K; |
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325 } |
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326 |
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327 } |
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328 |
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329 // Returns the kernel thread id of the currently running thread. |
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330 pid_t os::Aix::gettid() { |
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331 return (pid_t) thread_self(); |
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332 } |
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333 |
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334 void os::Aix::initialize_system_info() { |
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335 |
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336 // get the number of online(logical) cpus instead of configured |
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337 os::_processor_count = sysconf(_SC_NPROCESSORS_ONLN); |
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338 assert(_processor_count > 0, "_processor_count must be > 0"); |
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339 |
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340 // retrieve total physical storage |
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341 os::Aix::meminfo_t mi; |
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342 if (!os::Aix::get_meminfo(&mi)) { |
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343 fprintf(stderr, "os::Aix::get_meminfo failed.\n"); fflush(stderr); |
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344 assert(false, "os::Aix::get_meminfo failed."); |
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345 } |
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346 _physical_memory = (julong) mi.real_total; |
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347 } |
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348 |
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349 // Helper function for tracing page sizes. |
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350 static const char* describe_pagesize(size_t pagesize) { |
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351 switch (pagesize) { |
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352 case SIZE_4K : return "4K"; |
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353 case SIZE_64K: return "64K"; |
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354 case SIZE_16M: return "16M"; |
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355 case SIZE_16G: return "16G"; |
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356 default: |
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357 assert(false, "surprise"); |
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358 return "??"; |
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359 } |
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360 } |
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361 |
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362 // Retrieve information about multipage size support. Will initialize |
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363 // Aix::_page_size, Aix::_stack_page_size, Aix::_can_use_64K_pages, |
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364 // Aix::_can_use_16M_pages. |
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365 // Must be called before calling os::large_page_init(). |
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366 void os::Aix::query_multipage_support() { |
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367 |
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368 guarantee(_page_size == -1 && |
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369 _stack_page_size == -1 && |
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370 _can_use_64K_pages == -1 && |
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371 _can_use_16M_pages == -1 && |
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372 g_multipage_error == -1, |
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373 "do not call twice"); |
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374 |
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375 _page_size = ::sysconf(_SC_PAGESIZE); |
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376 |
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377 // This really would surprise me. |
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378 assert(_page_size == SIZE_4K, "surprise!"); |
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379 |
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380 |
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381 // query default data page size (default page size for C-Heap, pthread stacks and .bss). |
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382 // Default data page size is influenced either by linker options (-bdatapsize) |
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383 // or by environment variable LDR_CNTRL (suboption DATAPSIZE). If none is given, |
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384 // default should be 4K. |
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385 size_t data_page_size = SIZE_4K; |
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386 { |
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387 void* p = ::malloc(SIZE_16M); |
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388 data_page_size = os::Aix::query_pagesize(p); |
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389 ::free(p); |
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390 } |
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391 |
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392 // query default shm page size (LDR_CNTRL SHMPSIZE) |
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393 { |
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394 const int shmid = ::shmget(IPC_PRIVATE, 1, IPC_CREAT | S_IRUSR | S_IWUSR); |
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395 guarantee(shmid != -1, "shmget failed"); |
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396 void* p = ::shmat(shmid, NULL, 0); |
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397 ::shmctl(shmid, IPC_RMID, NULL); |
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398 guarantee(p != (void*) -1, "shmat failed"); |
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399 _shm_default_page_size = os::Aix::query_pagesize(p); |
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400 ::shmdt(p); |
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401 } |
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402 |
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403 // before querying the stack page size, make sure we are not running as primordial |
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404 // thread (because primordial thread's stack may have different page size than |
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405 // pthread thread stacks). Running a VM on the primordial thread won't work for a |
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406 // number of reasons so we may just as well guarantee it here |
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407 guarantee(!os::Aix::is_primordial_thread(), "Must not be called for primordial thread"); |
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408 |
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409 // query stack page size |
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410 { |
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411 int dummy = 0; |
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412 _stack_page_size = os::Aix::query_pagesize(&dummy); |
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413 // everything else would surprise me and should be looked into |
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414 guarantee(_stack_page_size == SIZE_4K || _stack_page_size == SIZE_64K, "Wrong page size"); |
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415 // also, just for completeness: pthread stacks are allocated from C heap, so |
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416 // stack page size should be the same as data page size |
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417 guarantee(_stack_page_size == data_page_size, "stack page size should be the same as data page size"); |
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418 } |
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419 |
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420 // EXTSHM is bad: among other things, it prevents setting pagesize dynamically |
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421 // for system V shm. |
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422 if (Aix::extshm()) { |
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423 if (Verbose) { |
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424 fprintf(stderr, "EXTSHM is active - will disable large page support.\n" |
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425 "Please make sure EXTSHM is OFF for large page support.\n"); |
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426 } |
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427 g_multipage_error = ERROR_MP_EXTSHM_ACTIVE; |
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428 _can_use_64K_pages = _can_use_16M_pages = 0; |
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429 goto query_multipage_support_end; |
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430 } |
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431 |
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432 // now check which page sizes the OS claims it supports, and of those, which actually can be used. |
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433 { |
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434 const int MAX_PAGE_SIZES = 4; |
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435 psize_t sizes[MAX_PAGE_SIZES]; |
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436 const int num_psizes = ::vmgetinfo(sizes, VMINFO_GETPSIZES, MAX_PAGE_SIZES); |
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437 if (num_psizes == -1) { |
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438 if (Verbose) { |
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439 fprintf(stderr, "vmgetinfo(VMINFO_GETPSIZES) failed (errno: %d)\n", errno); |
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440 fprintf(stderr, "disabling multipage support.\n"); |
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441 } |
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442 g_multipage_error = ERROR_MP_VMGETINFO_FAILED; |
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443 _can_use_64K_pages = _can_use_16M_pages = 0; |
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444 goto query_multipage_support_end; |
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445 } |
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446 guarantee(num_psizes > 0, "vmgetinfo(.., VMINFO_GETPSIZES, ...) failed."); |
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447 assert(num_psizes <= MAX_PAGE_SIZES, "Surprise! more than 4 page sizes?"); |
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448 if (Verbose) { |
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449 fprintf(stderr, "vmgetinfo(.., VMINFO_GETPSIZES, ...) returns %d supported page sizes: ", num_psizes); |
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450 for (int i = 0; i < num_psizes; i ++) { |
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451 fprintf(stderr, " %s ", describe_pagesize(sizes[i])); |
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452 } |
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453 fprintf(stderr, " .\n"); |
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454 } |
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455 |
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456 // Can we use 64K, 16M pages? |
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457 _can_use_64K_pages = 0; |
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458 _can_use_16M_pages = 0; |
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459 for (int i = 0; i < num_psizes; i ++) { |
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460 if (sizes[i] == SIZE_64K) { |
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461 _can_use_64K_pages = 1; |
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462 } else if (sizes[i] == SIZE_16M) { |
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463 _can_use_16M_pages = 1; |
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464 } |
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|
465 } |
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|
466 |
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467 if (!_can_use_64K_pages) { |
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468 g_multipage_error = ERROR_MP_VMGETINFO_CLAIMS_NO_SUPPORT_FOR_64K; |
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469 } |
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470 |
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471 // Double-check for 16M pages: Even if AIX claims to be able to use 16M pages, |
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472 // there must be an actual 16M page pool, and we must run with enough rights. |
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473 if (_can_use_16M_pages) { |
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474 const int shmid = ::shmget(IPC_PRIVATE, SIZE_16M, IPC_CREAT | S_IRUSR | S_IWUSR); |
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475 guarantee(shmid != -1, "shmget failed"); |
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476 struct shmid_ds shm_buf = { 0 }; |
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477 shm_buf.shm_pagesize = SIZE_16M; |
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478 const bool can_set_pagesize = ::shmctl(shmid, SHM_PAGESIZE, &shm_buf) == 0 ? true : false; |
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479 const int en = errno; |
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480 ::shmctl(shmid, IPC_RMID, NULL); |
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481 if (!can_set_pagesize) { |
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482 if (Verbose) { |
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483 fprintf(stderr, "Failed to allocate even one misely 16M page. shmctl failed with %d (%s).\n" |
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484 "Will deactivate 16M support.\n", en, strerror(en)); |
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485 } |
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486 _can_use_16M_pages = 0; |
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487 } |
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488 } |
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|
489 |
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490 } // end: check which pages can be used for shared memory |
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|
491 |
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|
492 query_multipage_support_end: |
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|
493 |
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494 guarantee(_page_size != -1 && |
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|
495 _stack_page_size != -1 && |
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496 _can_use_64K_pages != -1 && |
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497 _can_use_16M_pages != -1, "Page sizes not properly initialized"); |
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|
498 |
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|
499 if (_can_use_64K_pages) { |
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500 g_multipage_error = 0; |
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|
501 } |
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|
502 |
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503 if (Verbose) { |
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504 fprintf(stderr, "Data page size (C-Heap, bss, etc): %s\n", describe_pagesize(data_page_size)); |
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505 fprintf(stderr, "Thread stack page size (pthread): %s\n", describe_pagesize(_stack_page_size)); |
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506 fprintf(stderr, "Default shared memory page size: %s\n", describe_pagesize(_shm_default_page_size)); |
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507 fprintf(stderr, "Can use 64K pages dynamically with shared meory: %s\n", (_can_use_64K_pages ? "yes" :"no")); |
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508 fprintf(stderr, "Can use 16M pages dynamically with shared memory: %s\n", (_can_use_16M_pages ? "yes" :"no")); |
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509 fprintf(stderr, "Multipage error details: %d\n", g_multipage_error); |
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510 } |
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511 |
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512 } // end os::Aix::query_multipage_support() |
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513 |
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514 |
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515 // The code for this method was initially derived from the version in os_linux.cpp |
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516 void os::init_system_properties_values() { |
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517 // The next few definitions allow the code to be verbatim: |
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518 #define malloc(n) (char*)NEW_C_HEAP_ARRAY(char, (n), mtInternal) |
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519 #define DEFAULT_LIBPATH "/usr/lib:/lib" |
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520 #define EXTENSIONS_DIR "/lib/ext" |
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521 #define ENDORSED_DIR "/lib/endorsed" |
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522 |
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523 // sysclasspath, java_home, dll_dir |
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524 char *home_path; |
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525 char *dll_path; |
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526 char *pslash; |
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527 char buf[MAXPATHLEN]; |
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528 os::jvm_path(buf, sizeof(buf)); |
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529 |
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530 // Found the full path to libjvm.so. |
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531 // Now cut the path to <java_home>/jre if we can. |
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532 *(strrchr(buf, '/')) = '\0'; // get rid of /libjvm.so |
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533 pslash = strrchr(buf, '/'); |
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534 if (pslash != NULL) { |
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535 *pslash = '\0'; // get rid of /{client|server|hotspot} |
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536 } |
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537 |
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538 dll_path = malloc(strlen(buf) + 1); |
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539 strcpy(dll_path, buf); |
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540 Arguments::set_dll_dir(dll_path); |
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541 |
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542 if (pslash != NULL) { |
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543 pslash = strrchr(buf, '/'); |
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544 if (pslash != NULL) { |
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545 *pslash = '\0'; // get rid of /<arch> |
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546 pslash = strrchr(buf, '/'); |
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547 if (pslash != NULL) { |
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548 *pslash = '\0'; // get rid of /lib |
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549 } |
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550 } |
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551 } |
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552 |
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553 home_path = malloc(strlen(buf) + 1); |
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554 strcpy(home_path, buf); |
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555 Arguments::set_java_home(home_path); |
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556 |
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557 if (!set_boot_path('/', ':')) return; |
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558 |
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559 // Where to look for native libraries |
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560 |
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561 // On Aix we get the user setting of LIBPATH |
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562 // Eventually, all the library path setting will be done here. |
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563 char *ld_library_path; |
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564 |
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565 // Construct the invariant part of ld_library_path. |
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566 ld_library_path = (char *) malloc(sizeof(DEFAULT_LIBPATH)); |
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567 sprintf(ld_library_path, DEFAULT_LIBPATH); |
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568 |
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569 // Get the user setting of LIBPATH, and prepended it. |
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570 char *v = ::getenv("LIBPATH"); |
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571 if (v == NULL) { |
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572 v = ""; |
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573 } |
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574 |
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575 char *t = ld_library_path; |
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576 // That's +1 for the colon and +1 for the trailing '\0' |
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577 ld_library_path = (char *) malloc(strlen(v) + 1 + strlen(t) + 1); |
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578 sprintf(ld_library_path, "%s:%s", v, t); |
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579 |
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580 Arguments::set_library_path(ld_library_path); |
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581 |
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582 // Extensions directories |
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583 char* cbuf = malloc(strlen(Arguments::get_java_home()) + sizeof(EXTENSIONS_DIR)); |
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584 sprintf(cbuf, "%s" EXTENSIONS_DIR, Arguments::get_java_home()); |
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585 Arguments::set_ext_dirs(cbuf); |
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586 |
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587 // Endorsed standards default directory. |
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588 cbuf = malloc(strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR)); |
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589 sprintf(cbuf, "%s" ENDORSED_DIR, Arguments::get_java_home()); |
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590 Arguments::set_endorsed_dirs(cbuf); |
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|
591 |
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592 #undef malloc |
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593 #undef DEFAULT_LIBPATH |
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594 #undef EXTENSIONS_DIR |
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595 #undef ENDORSED_DIR |
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|
596 } |
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597 |
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598 //////////////////////////////////////////////////////////////////////////////// |
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599 // breakpoint support |
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|
600 |
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601 void os::breakpoint() { |
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602 BREAKPOINT; |
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603 } |
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|
604 |
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605 extern "C" void breakpoint() { |
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606 // use debugger to set breakpoint here |
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|
607 } |
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|
608 |
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609 //////////////////////////////////////////////////////////////////////////////// |
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610 // signal support |
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|
611 |
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612 debug_only(static bool signal_sets_initialized = false); |
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613 static sigset_t unblocked_sigs, vm_sigs, allowdebug_blocked_sigs; |
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614 |
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615 bool os::Aix::is_sig_ignored(int sig) { |
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616 struct sigaction oact; |
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617 sigaction(sig, (struct sigaction*)NULL, &oact); |
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618 void* ohlr = oact.sa_sigaction ? CAST_FROM_FN_PTR(void*, oact.sa_sigaction) |
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619 : CAST_FROM_FN_PTR(void*, oact.sa_handler); |
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620 if (ohlr == CAST_FROM_FN_PTR(void*, SIG_IGN)) |
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621 return true; |
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622 else |
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623 return false; |
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624 } |
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625 |
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626 void os::Aix::signal_sets_init() { |
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627 // Should also have an assertion stating we are still single-threaded. |
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628 assert(!signal_sets_initialized, "Already initialized"); |
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629 // Fill in signals that are necessarily unblocked for all threads in |
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630 // the VM. Currently, we unblock the following signals: |
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631 // SHUTDOWN{1,2,3}_SIGNAL: for shutdown hooks support (unless over-ridden |
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632 // by -Xrs (=ReduceSignalUsage)); |
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633 // BREAK_SIGNAL which is unblocked only by the VM thread and blocked by all |
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634 // other threads. The "ReduceSignalUsage" boolean tells us not to alter |
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635 // the dispositions or masks wrt these signals. |
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636 // Programs embedding the VM that want to use the above signals for their |
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637 // own purposes must, at this time, use the "-Xrs" option to prevent |
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638 // interference with shutdown hooks and BREAK_SIGNAL thread dumping. |
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639 // (See bug 4345157, and other related bugs). |
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640 // In reality, though, unblocking these signals is really a nop, since |
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641 // these signals are not blocked by default. |
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642 sigemptyset(&unblocked_sigs); |
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643 sigemptyset(&allowdebug_blocked_sigs); |
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644 sigaddset(&unblocked_sigs, SIGILL); |
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645 sigaddset(&unblocked_sigs, SIGSEGV); |
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646 sigaddset(&unblocked_sigs, SIGBUS); |
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647 sigaddset(&unblocked_sigs, SIGFPE); |
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648 sigaddset(&unblocked_sigs, SIGTRAP); |
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649 sigaddset(&unblocked_sigs, SIGDANGER); |
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650 sigaddset(&unblocked_sigs, SR_signum); |
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651 |
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652 if (!ReduceSignalUsage) { |
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653 if (!os::Aix::is_sig_ignored(SHUTDOWN1_SIGNAL)) { |
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654 sigaddset(&unblocked_sigs, SHUTDOWN1_SIGNAL); |
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655 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN1_SIGNAL); |
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656 } |
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657 if (!os::Aix::is_sig_ignored(SHUTDOWN2_SIGNAL)) { |
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658 sigaddset(&unblocked_sigs, SHUTDOWN2_SIGNAL); |
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659 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN2_SIGNAL); |
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660 } |
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661 if (!os::Aix::is_sig_ignored(SHUTDOWN3_SIGNAL)) { |
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662 sigaddset(&unblocked_sigs, SHUTDOWN3_SIGNAL); |
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663 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN3_SIGNAL); |
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664 } |
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665 } |
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666 // Fill in signals that are blocked by all but the VM thread. |
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667 sigemptyset(&vm_sigs); |
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668 if (!ReduceSignalUsage) |
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669 sigaddset(&vm_sigs, BREAK_SIGNAL); |
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670 debug_only(signal_sets_initialized = true); |
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671 } |
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672 |
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673 // These are signals that are unblocked while a thread is running Java. |
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674 // (For some reason, they get blocked by default.) |
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675 sigset_t* os::Aix::unblocked_signals() { |
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676 assert(signal_sets_initialized, "Not initialized"); |
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677 return &unblocked_sigs; |
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678 } |
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679 |
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680 // These are the signals that are blocked while a (non-VM) thread is |
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681 // running Java. Only the VM thread handles these signals. |
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682 sigset_t* os::Aix::vm_signals() { |
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683 assert(signal_sets_initialized, "Not initialized"); |
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684 return &vm_sigs; |
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685 } |
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686 |
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687 // These are signals that are blocked during cond_wait to allow debugger in |
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688 sigset_t* os::Aix::allowdebug_blocked_signals() { |
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689 assert(signal_sets_initialized, "Not initialized"); |
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690 return &allowdebug_blocked_sigs; |
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691 } |
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|
692 |
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693 void os::Aix::hotspot_sigmask(Thread* thread) { |
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|
694 |
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|
695 //Save caller's signal mask before setting VM signal mask |
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696 sigset_t caller_sigmask; |
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697 pthread_sigmask(SIG_BLOCK, NULL, &caller_sigmask); |
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698 |
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|
699 OSThread* osthread = thread->osthread(); |
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700 osthread->set_caller_sigmask(caller_sigmask); |
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|
701 |
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702 pthread_sigmask(SIG_UNBLOCK, os::Aix::unblocked_signals(), NULL); |
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|
703 |
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|
704 if (!ReduceSignalUsage) { |
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|
705 if (thread->is_VM_thread()) { |
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706 // Only the VM thread handles BREAK_SIGNAL ... |
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|
707 pthread_sigmask(SIG_UNBLOCK, vm_signals(), NULL); |
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708 } else { |
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|
709 // ... all other threads block BREAK_SIGNAL |
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|
710 pthread_sigmask(SIG_BLOCK, vm_signals(), NULL); |
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|
711 } |
666e6ce3976c
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|
712 } |
666e6ce3976c
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|
713 } |
666e6ce3976c
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|
714 |
666e6ce3976c
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|
715 // retrieve memory information. |
666e6ce3976c
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|
716 // Returns false if something went wrong; |
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|
717 // content of pmi undefined in this case. |
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|
718 bool os::Aix::get_meminfo(meminfo_t* pmi) { |
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|
719 |
666e6ce3976c
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|
720 assert(pmi, "get_meminfo: invalid parameter"); |
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|
721 |
666e6ce3976c
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|
722 memset(pmi, 0, sizeof(meminfo_t)); |
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|
723 |
666e6ce3976c
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|
724 if (os::Aix::on_pase()) { |
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|
725 |
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|
726 Unimplemented(); |
666e6ce3976c
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|
727 return false; |
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|
728 |
666e6ce3976c
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|
729 } else { |
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|
730 |
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|
731 // On AIX, I use the (dynamically loaded) perfstat library to retrieve memory statistics |
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|
732 // See: |
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|
733 // http://publib.boulder.ibm.com/infocenter/systems/index.jsp |
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|
734 // ?topic=/com.ibm.aix.basetechref/doc/basetrf1/perfstat_memtot.htm |
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|
735 // http://publib.boulder.ibm.com/infocenter/systems/index.jsp |
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736 // ?topic=/com.ibm.aix.files/doc/aixfiles/libperfstat.h.htm |
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|
737 |
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|
738 perfstat_memory_total_t psmt; |
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|
739 memset (&psmt, '\0', sizeof(psmt)); |
666e6ce3976c
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|
740 const int rc = libperfstat::perfstat_memory_total(NULL, &psmt, sizeof(psmt), 1); |
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|
741 if (rc == -1) { |
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|
742 fprintf(stderr, "perfstat_memory_total() failed (errno=%d)\n", errno); |
666e6ce3976c
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|
743 assert(0, "perfstat_memory_total() failed"); |
666e6ce3976c
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|
744 return false; |
666e6ce3976c
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|
745 } |
666e6ce3976c
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|
746 |
666e6ce3976c
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|
747 assert(rc == 1, "perfstat_memory_total() - weird return code"); |
666e6ce3976c
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|
748 |
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|
749 // excerpt from |
666e6ce3976c
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|
750 // http://publib.boulder.ibm.com/infocenter/systems/index.jsp |
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|
751 // ?topic=/com.ibm.aix.files/doc/aixfiles/libperfstat.h.htm |
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752 // The fields of perfstat_memory_total_t: |
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753 // u_longlong_t virt_total Total virtual memory (in 4 KB pages). |
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754 // u_longlong_t real_total Total real memory (in 4 KB pages). |
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755 // u_longlong_t real_free Free real memory (in 4 KB pages). |
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756 // u_longlong_t pgsp_total Total paging space (in 4 KB pages). |
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757 // u_longlong_t pgsp_free Free paging space (in 4 KB pages). |
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758 |
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759 pmi->virt_total = psmt.virt_total * 4096; |
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760 pmi->real_total = psmt.real_total * 4096; |
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761 pmi->real_free = psmt.real_free * 4096; |
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762 pmi->pgsp_total = psmt.pgsp_total * 4096; |
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763 pmi->pgsp_free = psmt.pgsp_free * 4096; |
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|
764 |
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765 return true; |
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766 |
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767 } |
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768 } // end os::Aix::get_meminfo |
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769 |
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770 // Retrieve global cpu information. |
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771 // Returns false if something went wrong; |
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772 // the content of pci is undefined in this case. |
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773 bool os::Aix::get_cpuinfo(cpuinfo_t* pci) { |
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774 assert(pci, "get_cpuinfo: invalid parameter"); |
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775 memset(pci, 0, sizeof(cpuinfo_t)); |
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776 |
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777 perfstat_cpu_total_t psct; |
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778 memset (&psct, '\0', sizeof(psct)); |
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779 |
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780 if (-1 == libperfstat::perfstat_cpu_total(NULL, &psct, sizeof(perfstat_cpu_total_t), 1)) { |
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781 fprintf(stderr, "perfstat_cpu_total() failed (errno=%d)\n", errno); |
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782 assert(0, "perfstat_cpu_total() failed"); |
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783 return false; |
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784 } |
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|
785 |
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786 // global cpu information |
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787 strcpy (pci->description, psct.description); |
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788 pci->processorHZ = psct.processorHZ; |
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789 pci->ncpus = psct.ncpus; |
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790 os::Aix::_logical_cpus = psct.ncpus; |
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791 for (int i = 0; i < 3; i++) { |
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792 pci->loadavg[i] = (double) psct.loadavg[i] / (1 << SBITS); |
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793 } |
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794 |
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795 // get the processor version from _system_configuration |
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796 switch (_system_configuration.version) { |
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797 case PV_7: |
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798 strcpy(pci->version, "Power PC 7"); |
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799 break; |
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800 case PV_6_1: |
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801 strcpy(pci->version, "Power PC 6 DD1.x"); |
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802 break; |
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803 case PV_6: |
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804 strcpy(pci->version, "Power PC 6"); |
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805 break; |
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806 case PV_5: |
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807 strcpy(pci->version, "Power PC 5"); |
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808 break; |
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809 case PV_5_2: |
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810 strcpy(pci->version, "Power PC 5_2"); |
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811 break; |
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812 case PV_5_3: |
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813 strcpy(pci->version, "Power PC 5_3"); |
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814 break; |
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815 case PV_5_Compat: |
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816 strcpy(pci->version, "PV_5_Compat"); |
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817 break; |
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818 case PV_6_Compat: |
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819 strcpy(pci->version, "PV_6_Compat"); |
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|
820 break; |
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821 case PV_7_Compat: |
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822 strcpy(pci->version, "PV_7_Compat"); |
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|
823 break; |
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824 default: |
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825 strcpy(pci->version, "unknown"); |
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|
826 } |
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|
827 |
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|
828 return true; |
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|
829 |
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830 } //end os::Aix::get_cpuinfo |
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831 |
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832 ////////////////////////////////////////////////////////////////////////////// |
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833 // detecting pthread library |
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|
834 |
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835 void os::Aix::libpthread_init() { |
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|
836 return; |
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|
837 } |
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|
838 |
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|
839 ////////////////////////////////////////////////////////////////////////////// |
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|
840 // create new thread |
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|
841 |
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|
842 // Thread start routine for all newly created threads |
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|
843 static void *java_start(Thread *thread) { |
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|
844 |
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845 // find out my own stack dimensions |
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|
846 { |
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847 // actually, this should do exactly the same as thread->record_stack_base_and_size... |
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|
848 address base = 0; |
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|
849 size_t size = 0; |
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|
850 query_stack_dimensions(&base, &size); |
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851 thread->set_stack_base(base); |
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852 thread->set_stack_size(size); |
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|
853 } |
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|
854 |
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855 // Do some sanity checks. |
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856 CHECK_CURRENT_STACK_PTR(thread->stack_base(), thread->stack_size()); |
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|
857 |
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858 // Try to randomize the cache line index of hot stack frames. |
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859 // This helps when threads of the same stack traces evict each other's |
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860 // cache lines. The threads can be either from the same JVM instance, or |
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861 // from different JVM instances. The benefit is especially true for |
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862 // processors with hyperthreading technology. |
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|
863 |
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|
864 static int counter = 0; |
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|
865 int pid = os::current_process_id(); |
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|
866 alloca(((pid ^ counter++) & 7) * 128); |
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|
867 |
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|
868 ThreadLocalStorage::set_thread(thread); |
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|
869 |
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|
870 OSThread* osthread = thread->osthread(); |
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|
871 |
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|
872 // thread_id is kernel thread id (similar to Solaris LWP id) |
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873 osthread->set_thread_id(os::Aix::gettid()); |
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|
874 |
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|
875 // initialize signal mask for this thread |
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|
876 os::Aix::hotspot_sigmask(thread); |
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|
877 |
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|
878 // initialize floating point control register |
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|
879 os::Aix::init_thread_fpu_state(); |
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|
880 |
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881 assert(osthread->get_state() == RUNNABLE, "invalid os thread state"); |
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|
882 |
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|
883 // call one more level start routine |
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|
884 thread->run(); |
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|
885 |
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|
886 return 0; |
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|
887 } |
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|
888 |
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|
889 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { |
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|
890 |
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|
891 // We want the whole function to be synchronized. |
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|
892 ThreadCritical cs; |
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|
893 |
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|
894 assert(thread->osthread() == NULL, "caller responsible"); |
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|
895 |
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|
896 // Allocate the OSThread object |
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|
897 OSThread* osthread = new OSThread(NULL, NULL); |
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|
898 if (osthread == NULL) { |
666e6ce3976c
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|
899 return false; |
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|
900 } |
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|
901 |
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|
902 // set the correct thread state |
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903 osthread->set_thread_type(thr_type); |
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|
904 |
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|
905 // Initial state is ALLOCATED but not INITIALIZED |
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906 osthread->set_state(ALLOCATED); |
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|
907 |
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|
908 thread->set_osthread(osthread); |
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|
909 |
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|
910 // init thread attributes |
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|
911 pthread_attr_t attr; |
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|
912 pthread_attr_init(&attr); |
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|
913 guarantee(pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED) == 0, "???"); |
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|
914 |
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|
915 // Make sure we run in 1:1 kernel-user-thread mode. |
666e6ce3976c
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|
916 if (os::Aix::on_aix()) { |
666e6ce3976c
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|
917 guarantee(pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM) == 0, "???"); |
666e6ce3976c
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|
918 guarantee(pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED) == 0, "???"); |
666e6ce3976c
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|
919 } // end: aix |
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|
920 |
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changeset
|
921 // Start in suspended state, and in os::thread_start, wake the thread up. |
666e6ce3976c
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|
922 guarantee(pthread_attr_setsuspendstate_np(&attr, PTHREAD_CREATE_SUSPENDED_NP) == 0, "???"); |
666e6ce3976c
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|
923 |
666e6ce3976c
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|
924 // calculate stack size if it's not specified by caller |
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|
925 if (os::Aix::supports_variable_stack_size()) { |
666e6ce3976c
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|
926 if (stack_size == 0) { |
666e6ce3976c
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|
927 stack_size = os::Aix::default_stack_size(thr_type); |
666e6ce3976c
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|
928 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
929 switch (thr_type) { |
666e6ce3976c
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|
930 case os::java_thread: |
666e6ce3976c
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diff
changeset
|
931 // Java threads use ThreadStackSize whose default value can be changed with the flag -Xss. |
666e6ce3976c
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|
932 assert(JavaThread::stack_size_at_create() > 0, "this should be set"); |
666e6ce3976c
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|
933 stack_size = JavaThread::stack_size_at_create(); |
666e6ce3976c
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diff
changeset
|
934 break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
935 case os::compiler_thread: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
936 if (CompilerThreadStackSize > 0) { |
666e6ce3976c
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|
937 stack_size = (size_t)(CompilerThreadStackSize * K); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
938 break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
939 } // else fall through: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
940 // use VMThreadStackSize if CompilerThreadStackSize is not defined |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
941 case os::vm_thread: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
942 case os::pgc_thread: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
943 case os::cgc_thread: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
944 case os::watcher_thread: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
945 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
946 break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
947 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
948 } |
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
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parents:
diff
changeset
|
950 stack_size = MAX2(stack_size, os::Aix::min_stack_allowed); |
666e6ce3976c
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diff
changeset
|
951 pthread_attr_setstacksize(&attr, stack_size); |
666e6ce3976c
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diff
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|
952 } //else let thread_create() pick the default value (96 K on AIX) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
953 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
954 pthread_t tid; |
666e6ce3976c
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diff
changeset
|
955 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
|
956 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
957 pthread_attr_destroy(&attr); |
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 if (ret != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
960 if (PrintMiscellaneous && (Verbose || WizardMode)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
961 perror("pthread_create()"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
962 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
963 // Need to clean up stuff we've allocated so far |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
964 thread->set_osthread(NULL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
965 delete osthread; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
966 return false; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
969 // Store pthread info into the OSThread |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
970 osthread->set_pthread_id(tid); |
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 return true; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
975 ///////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
976 // attach existing thread |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
977 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
978 // bootstrap the main thread |
666e6ce3976c
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parents:
diff
changeset
|
979 bool os::create_main_thread(JavaThread* thread) { |
666e6ce3976c
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simonis
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changeset
|
980 assert(os::Aix::_main_thread == pthread_self(), "should be called inside main thread"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
981 return create_attached_thread(thread); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
982 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
983 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
984 bool os::create_attached_thread(JavaThread* thread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
985 #ifdef ASSERT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
986 thread->verify_not_published(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
987 #endif |
666e6ce3976c
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parents:
diff
changeset
|
988 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
989 // Allocate the OSThread object |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
990 OSThread* osthread = new OSThread(NULL, NULL); |
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 if (osthread == NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
993 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
994 } |
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 // Store pthread info into the OSThread |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
997 osthread->set_thread_id(os::Aix::gettid()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
998 osthread->set_pthread_id(::pthread_self()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
999 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1000 // initialize floating point control register |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1001 os::Aix::init_thread_fpu_state(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1002 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1003 // some sanity checks |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1004 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
|
1005 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1006 // Initial thread state is RUNNABLE |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1007 osthread->set_state(RUNNABLE); |
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1008 |
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1009 thread->set_osthread(osthread); |
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1010 |
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1011 if (UseNUMA) { |
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1012 int lgrp_id = os::numa_get_group_id(); |
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1013 if (lgrp_id != -1) { |
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1014 thread->set_lgrp_id(lgrp_id); |
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1015 } |
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1016 } |
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1017 |
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1018 // initialize signal mask for this thread |
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1019 // and save the caller's signal mask |
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1020 os::Aix::hotspot_sigmask(thread); |
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1021 |
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1022 return true; |
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1023 } |
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1024 |
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1025 void os::pd_start_thread(Thread* thread) { |
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1026 int status = pthread_continue_np(thread->osthread()->pthread_id()); |
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1027 assert(status == 0, "thr_continue failed"); |
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1028 } |
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1029 |
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1030 // Free OS resources related to the OSThread |
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1031 void os::free_thread(OSThread* osthread) { |
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1032 assert(osthread != NULL, "osthread not set"); |
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1033 |
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1034 if (Thread::current()->osthread() == osthread) { |
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1035 // Restore caller's signal mask |
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1036 sigset_t sigmask = osthread->caller_sigmask(); |
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1037 pthread_sigmask(SIG_SETMASK, &sigmask, NULL); |
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1038 } |
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1039 |
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1040 delete osthread; |
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1041 } |
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1042 |
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1043 ////////////////////////////////////////////////////////////////////////////// |
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1044 // thread local storage |
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1045 |
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1046 int os::allocate_thread_local_storage() { |
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1047 pthread_key_t key; |
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1048 int rslt = pthread_key_create(&key, NULL); |
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1049 assert(rslt == 0, "cannot allocate thread local storage"); |
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1050 return (int)key; |
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1051 } |
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1052 |
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1053 // Note: This is currently not used by VM, as we don't destroy TLS key |
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1054 // on VM exit. |
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1055 void os::free_thread_local_storage(int index) { |
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1056 int rslt = pthread_key_delete((pthread_key_t)index); |
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1057 assert(rslt == 0, "invalid index"); |
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1058 } |
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1059 |
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1060 void os::thread_local_storage_at_put(int index, void* value) { |
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1061 int rslt = pthread_setspecific((pthread_key_t)index, value); |
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1062 assert(rslt == 0, "pthread_setspecific failed"); |
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1063 } |
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1064 |
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1065 extern "C" Thread* get_thread() { |
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1066 return ThreadLocalStorage::thread(); |
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1067 } |
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|
1068 |
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1069 //////////////////////////////////////////////////////////////////////////////// |
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1070 // time support |
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|
1071 |
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1072 // Time since start-up in seconds to a fine granularity. |
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1073 // Used by VMSelfDestructTimer and the MemProfiler. |
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1074 double os::elapsedTime() { |
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1075 return (double)(os::elapsed_counter()) * 0.000001; |
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1076 } |
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|
1077 |
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1078 jlong os::elapsed_counter() { |
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1079 timeval time; |
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1080 int status = gettimeofday(&time, NULL); |
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1081 return jlong(time.tv_sec) * 1000 * 1000 + jlong(time.tv_usec) - initial_time_count; |
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1082 } |
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|
1083 |
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1084 jlong os::elapsed_frequency() { |
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1085 return (1000 * 1000); |
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|
1086 } |
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|
1087 |
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1088 // For now, we say that linux does not support vtime. I have no idea |
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1089 // whether it can actually be made to (DLD, 9/13/05). |
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|
1090 |
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|
1091 bool os::supports_vtime() { return false; } |
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1092 bool os::enable_vtime() { return false; } |
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1093 bool os::vtime_enabled() { return false; } |
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1094 double os::elapsedVTime() { |
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1095 // better than nothing, but not much |
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|
1096 return elapsedTime(); |
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|
1097 } |
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|
1098 |
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|
1099 jlong os::javaTimeMillis() { |
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|
1100 timeval time; |
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1101 int status = gettimeofday(&time, NULL); |
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1102 assert(status != -1, "aix error at gettimeofday()"); |
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1103 return jlong(time.tv_sec) * 1000 + jlong(time.tv_usec / 1000); |
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1104 } |
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|
1105 |
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1106 // We need to manually declare mread_real_time, |
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1107 // because IBM didn't provide a prototype in time.h. |
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1108 // (they probably only ever tested in C, not C++) |
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1109 extern "C" |
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1110 int mread_real_time(timebasestruct_t *t, size_t size_of_timebasestruct_t); |
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|
1111 |
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|
1112 jlong os::javaTimeNanos() { |
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1113 if (os::Aix::on_pase()) { |
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|
1114 Unimplemented(); |
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|
1115 return 0; |
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|
1116 } |
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1117 else { |
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1118 // On AIX use the precision of processors real time clock |
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1119 // or time base registers. |
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|
1120 timebasestruct_t time; |
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|
1121 int rc; |
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|
1122 |
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1123 // If the CPU has a time register, it will be used and |
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1124 // we have to convert to real time first. After convertion we have following data: |
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1125 // time.tb_high [seconds since 00:00:00 UTC on 1.1.1970] |
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1126 // time.tb_low [nanoseconds after the last full second above] |
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1127 // We better use mread_real_time here instead of read_real_time |
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1128 // to ensure that we will get a monotonic increasing time. |
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1129 if (mread_real_time(&time, TIMEBASE_SZ) != RTC_POWER) { |
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1130 rc = time_base_to_time(&time, TIMEBASE_SZ); |
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1131 assert(rc != -1, "aix error at time_base_to_time()"); |
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1132 } |
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1133 return jlong(time.tb_high) * (1000 * 1000 * 1000) + jlong(time.tb_low); |
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1134 } |
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1135 } |
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1136 |
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1137 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { |
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1138 { |
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1139 // gettimeofday - based on time in seconds since the Epoch thus does not wrap |
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1140 info_ptr->max_value = ALL_64_BITS; |
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1141 |
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1142 // gettimeofday is a real time clock so it skips |
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1143 info_ptr->may_skip_backward = true; |
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1144 info_ptr->may_skip_forward = true; |
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1145 } |
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1146 |
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1147 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time |
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1148 } |
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1149 |
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1150 // Return the real, user, and system times in seconds from an |
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1151 // arbitrary fixed point in the past. |
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1152 bool os::getTimesSecs(double* process_real_time, |
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1153 double* process_user_time, |
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1154 double* process_system_time) { |
14451 | 1155 struct tms ticks; |
1156 clock_t real_ticks = times(&ticks); | |
1157 | |
1158 if (real_ticks == (clock_t) (-1)) { | |
1159 return false; | |
1160 } else { | |
1161 double ticks_per_second = (double) clock_tics_per_sec; | |
1162 *process_user_time = ((double) ticks.tms_utime) / ticks_per_second; | |
1163 *process_system_time = ((double) ticks.tms_stime) / ticks_per_second; | |
1164 *process_real_time = ((double) real_ticks) / ticks_per_second; | |
1165 | |
1166 return true; | |
1167 } | |
14415
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1168 } |
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1169 |
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1170 |
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1171 char * os::local_time_string(char *buf, size_t buflen) { |
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1172 struct tm t; |
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1173 time_t long_time; |
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1174 time(&long_time); |
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1175 localtime_r(&long_time, &t); |
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1176 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", |
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1177 t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, |
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1178 t.tm_hour, t.tm_min, t.tm_sec); |
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1179 return buf; |
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1180 } |
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1181 |
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1182 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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1183 return localtime_r(clock, res); |
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1184 } |
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1185 |
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1186 //////////////////////////////////////////////////////////////////////////////// |
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1187 // runtime exit support |
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1188 |
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1189 // Note: os::shutdown() might be called very early during initialization, or |
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1190 // called from signal handler. Before adding something to os::shutdown(), make |
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1191 // sure it is async-safe and can handle partially initialized VM. |
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1192 void os::shutdown() { |
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1193 |
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1194 // allow PerfMemory to attempt cleanup of any persistent resources |
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1195 perfMemory_exit(); |
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1196 |
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1197 // needs to remove object in file system |
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1198 AttachListener::abort(); |
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1199 |
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1200 // flush buffered output, finish log files |
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1201 ostream_abort(); |
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1202 |
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1203 // Check for abort hook |
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1204 abort_hook_t abort_hook = Arguments::abort_hook(); |
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1205 if (abort_hook != NULL) { |
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1206 abort_hook(); |
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1207 } |
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1208 |
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1209 } |
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1210 |
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1211 // Note: os::abort() might be called very early during initialization, or |
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1212 // called from signal handler. Before adding something to os::abort(), make |
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1213 // sure it is async-safe and can handle partially initialized VM. |
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1214 void os::abort(bool dump_core) { |
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1215 os::shutdown(); |
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1216 if (dump_core) { |
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|
1217 #ifndef PRODUCT |
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1218 fdStream out(defaultStream::output_fd()); |
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1219 out.print_raw("Current thread is "); |
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1220 char buf[16]; |
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1221 jio_snprintf(buf, sizeof(buf), UINTX_FORMAT, os::current_thread_id()); |
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1222 out.print_raw_cr(buf); |
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1223 out.print_raw_cr("Dumping core ..."); |
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|
1224 #endif |
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|
1225 ::abort(); // dump core |
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|
1226 } |
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|
1227 |
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|
1228 ::exit(1); |
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|
1229 } |
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|
1230 |
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1231 // Die immediately, no exit hook, no abort hook, no cleanup. |
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1232 void os::die() { |
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|
1233 ::abort(); |
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|
1234 } |
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|
1235 |
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|
1236 // Unused on Aix for now. |
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1237 void os::set_error_file(const char *logfile) {} |
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|
1238 |
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|
1239 |
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|
1240 // This method is a copy of JDK's sysGetLastErrorString |
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1241 // from src/solaris/hpi/src/system_md.c |
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|
1242 |
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1243 size_t os::lasterror(char *buf, size_t len) { |
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|
1244 |
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|
1245 if (errno == 0) return 0; |
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|
1246 |
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|
1247 const char *s = ::strerror(errno); |
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|
1248 size_t n = ::strlen(s); |
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|
1249 if (n >= len) { |
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|
1250 n = len - 1; |
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|
1251 } |
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|
1252 ::strncpy(buf, s, n); |
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|
1253 buf[n] = '\0'; |
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|
1254 return n; |
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|
1255 } |
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|
1256 |
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|
1257 intx os::current_thread_id() { return (intx)pthread_self(); } |
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|
1258 int os::current_process_id() { |
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|
1259 |
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|
1260 // This implementation returns a unique pid, the pid of the |
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|
1261 // launcher thread that starts the vm 'process'. |
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|
1262 |
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|
1263 // Under POSIX, getpid() returns the same pid as the |
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|
1264 // launcher thread rather than a unique pid per thread. |
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|
1265 // Use gettid() if you want the old pre NPTL behaviour. |
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|
1266 |
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|
1267 // if you are looking for the result of a call to getpid() that |
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|
1268 // returns a unique pid for the calling thread, then look at the |
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|
1269 // OSThread::thread_id() method in osThread_linux.hpp file |
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1270 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
1271 return (int)(_initial_pid ? _initial_pid : getpid()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1272 } |
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 // DLL functions |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1275 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1276 const char* os::dll_file_extension() { return ".so"; } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1277 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1278 // 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
|
1279 // 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
|
1280 const char* os::get_temp_directory() { return "/tmp"; } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1281 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1282 static bool file_exists(const char* filename) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1283 struct stat statbuf; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1284 if (filename == NULL || strlen(filename) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1285 return false; |
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 return os::stat(filename, &statbuf) == 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1288 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1289 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1290 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
|
1291 const char* pname, const char* fname) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1292 bool retval = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1293 // Copied from libhpi |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1294 const size_t pnamelen = pname ? strlen(pname) : 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1295 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1296 // Return error on buffer overflow. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1297 if (pnamelen + strlen(fname) + 10 > (size_t) buflen) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1298 *buffer = '\0'; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1299 return retval; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1300 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1301 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1302 if (pnamelen == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1303 snprintf(buffer, buflen, "lib%s.so", fname); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1304 retval = true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1305 } else if (strchr(pname, *os::path_separator()) != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1306 int n; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1307 char** pelements = split_path(pname, &n); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1308 for (int i = 0; i < n; i++) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1309 // 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
|
1310 if (pelements[i] == NULL || strlen(pelements[i]) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1311 continue; // skip the empty path values |
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 snprintf(buffer, buflen, "%s/lib%s.so", pelements[i], fname); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1314 if (file_exists(buffer)) { |
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 break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1317 } |
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 // release the storage |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1320 for (int i = 0; i < n; i++) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1321 if (pelements[i] != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1322 FREE_C_HEAP_ARRAY(char, pelements[i], mtInternal); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1323 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1324 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1325 if (pelements != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1326 FREE_C_HEAP_ARRAY(char*, pelements, mtInternal); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1327 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1328 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1329 snprintf(buffer, buflen, "%s/lib%s.so", pname, fname); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1330 retval = true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1331 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1332 return retval; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1333 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1334 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1335 // Check if addr is inside libjvm.so. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1336 bool os::address_is_in_vm(address addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1337 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1338 // 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
|
1339 // 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
|
1340 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1341 const LoadedLibraryModule* lib = LoadedLibraries::find_for_text_address(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1342 if (lib) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1343 if (strcmp(lib->get_shortname(), "libjvm.so") == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1344 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1345 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1346 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1347 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1348 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1349 lib = LoadedLibraries::find_for_data_address(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1350 if (lib) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1351 if (strcmp(lib->get_shortname(), "libjvm.so") == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1352 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1353 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1354 return false; |
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 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1357 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1358 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1359 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1360 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1361 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1362 // 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
|
1363 // 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
|
1364 // it is returned unchanged. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1365 // 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
|
1366 // code entry point. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1367 // 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
|
1368 // NULL is returned. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1369 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
|
1370 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1371 const LoadedLibraryModule* lib = LoadedLibraries::find_for_text_address(p); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1372 if (lib) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1373 // its a real code pointer |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1374 return p; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1375 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1376 lib = LoadedLibraries::find_for_data_address(p); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1377 if (lib) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1378 // pointer to data segment, potential function descriptor |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1379 address code_entry = (address)(((FunctionDescriptor*)p)->entry()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1380 if (LoadedLibraries::find_for_text_address(code_entry)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1381 // Its a function descriptor |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1382 return code_entry; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1383 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1384 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1385 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1386 return NULL; |
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 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
|
1390 int buflen, int *offset) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1391 if (offset) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1392 *offset = -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1393 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1394 if (buf) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1395 buf[0] = '\0'; |
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 // Resolve function ptr literals first. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1399 addr = resolve_function_descriptor_to_code_pointer(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1400 if (!addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1401 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1402 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1403 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1404 // 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
|
1405 return Decoder::decode(addr, buf, buflen, offset); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1406 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1407 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1408 static int getModuleName(codeptr_t pc, // [in] program counter |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1409 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
|
1410 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
|
1411 ) { |
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 // initialize output parameters |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1414 if (p_name && namelen > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1415 *p_name = '\0'; |
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 if (p_errmsg && errmsglen > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1418 *p_errmsg = '\0'; |
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 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
|
1422 if (lib) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1423 if (p_name && namelen > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1424 sprintf(p_name, "%.*s", namelen, lib->get_shortname()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1425 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1426 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1427 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1428 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1429 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1430 fprintf(stderr, "pc outside any module"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1431 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1432 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1433 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1434 |
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 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
|
1438 int buflen, int* offset) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1439 if (offset) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1440 *offset = -1; |
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 if (buf) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1443 buf[0] = '\0'; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1444 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1445 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1446 // Resolve function ptr literals first. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1447 addr = resolve_function_descriptor_to_code_pointer(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1448 if (!addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1449 return false; |
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 (::getModuleName((codeptr_t) addr, buf, buflen, 0, 0) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1453 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1454 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1455 return false; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1458 // 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
|
1459 // for the same architecture as Hotspot is running on |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1460 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
|
1461 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1462 if (ebuf && ebuflen > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1463 ebuf[0] = '\0'; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1464 ebuf[ebuflen - 1] = '\0'; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1465 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1466 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1467 if (!filename || strlen(filename) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1468 ::strncpy(ebuf, "dll_load: empty filename specified", ebuflen - 1); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1469 return NULL; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1472 // 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
|
1473 void * result= ::dlopen(filename, RTLD_LAZY); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1474 if (result != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1475 // 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
|
1476 LoadedLibraries::reload(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1477 return result; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1478 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1479 // error analysis when dlopen fails |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1480 const char* const error_report = ::dlerror(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1481 if (error_report && ebuf && ebuflen > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1482 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
|
1483 filename, ::getenv("LIBPATH"), ::getenv("LD_LIBRARY_PATH"), error_report); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1484 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1485 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1486 return NULL; |
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 // 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
|
1490 // 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
|
1491 // 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
|
1492 void* os::dll_lookup(void* handle, const char* name) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1493 pthread_mutex_lock(&dl_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1494 void* res = dlsym(handle, name); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1495 pthread_mutex_unlock(&dl_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1496 return res; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1497 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1498 |
14464
3ef193f311ed
8035423: AIX: Fix os::get_default_process_handle() in os_aix.cpp after 8031968
simonis
parents:
14461
diff
changeset
|
1499 void* os::get_default_process_handle() { |
3ef193f311ed
8035423: AIX: Fix os::get_default_process_handle() in os_aix.cpp after 8031968
simonis
parents:
14461
diff
changeset
|
1500 return (void*)::dlopen(NULL, RTLD_LAZY); |
3ef193f311ed
8035423: AIX: Fix os::get_default_process_handle() in os_aix.cpp after 8031968
simonis
parents:
14461
diff
changeset
|
1501 } |
3ef193f311ed
8035423: AIX: Fix os::get_default_process_handle() in os_aix.cpp after 8031968
simonis
parents:
14461
diff
changeset
|
1502 |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1503 void os::print_dll_info(outputStream *st) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1504 st->print_cr("Dynamic libraries:"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1505 LoadedLibraries::print(st); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1506 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1507 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1508 void os::print_os_info(outputStream* st) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1509 st->print("OS:"); |
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("uname:"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1512 struct utsname name; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1513 uname(&name); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1514 st->print(name.sysname); st->print(" "); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1515 st->print(name.nodename); st->print(" "); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1516 st->print(name.release); st->print(" "); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1517 st->print(name.version); st->print(" "); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1518 st->print(name.machine); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1519 st->cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1520 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1521 // rlimit |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1522 st->print("rlimit:"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1523 struct rlimit rlim; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1524 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1525 st->print(" STACK "); |
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1526 getrlimit(RLIMIT_STACK, &rlim); |
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1527 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity"); |
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1528 else st->print("%uk", rlim.rlim_cur >> 10); |
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|
1529 |
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|
1530 st->print(", CORE "); |
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|
1531 getrlimit(RLIMIT_CORE, &rlim); |
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|
1532 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity"); |
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|
1533 else st->print("%uk", rlim.rlim_cur >> 10); |
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|
1534 |
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1535 st->print(", NPROC "); |
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|
1536 st->print("%d", sysconf(_SC_CHILD_MAX)); |
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|
1537 |
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|
1538 st->print(", NOFILE "); |
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|
1539 getrlimit(RLIMIT_NOFILE, &rlim); |
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|
1540 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity"); |
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1541 else st->print("%d", rlim.rlim_cur); |
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|
1542 |
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1543 st->print(", AS "); |
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|
1544 getrlimit(RLIMIT_AS, &rlim); |
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1545 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity"); |
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1546 else st->print("%uk", rlim.rlim_cur >> 10); |
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1547 |
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1548 // Print limits on DATA, because it limits the C-heap. |
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1549 st->print(", DATA "); |
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1550 getrlimit(RLIMIT_DATA, &rlim); |
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1551 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity"); |
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1552 else st->print("%uk", rlim.rlim_cur >> 10); |
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1553 st->cr(); |
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|
1554 |
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|
1555 // load average |
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1556 st->print("load average:"); |
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|
1557 double loadavg[3] = {-1.L, -1.L, -1.L}; |
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1558 os::loadavg(loadavg, 3); |
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1559 st->print("%0.02f %0.02f %0.02f", loadavg[0], loadavg[1], loadavg[2]); |
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1560 st->cr(); |
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|
1561 } |
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|
1562 |
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1563 void os::print_memory_info(outputStream* st) { |
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|
1564 |
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|
1565 st->print_cr("Memory:"); |
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|
1566 |
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1567 st->print_cr(" default page size: %s", describe_pagesize(os::vm_page_size())); |
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1568 st->print_cr(" default stack page size: %s", describe_pagesize(os::vm_page_size())); |
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1569 st->print_cr(" default shm page size: %s", describe_pagesize(os::Aix::shm_default_page_size())); |
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1570 st->print_cr(" can use 64K pages dynamically: %s", (os::Aix::can_use_64K_pages() ? "yes" :"no")); |
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1571 st->print_cr(" can use 16M pages dynamically: %s", (os::Aix::can_use_16M_pages() ? "yes" :"no")); |
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1572 if (g_multipage_error != 0) { |
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1573 st->print_cr(" multipage error: %d", g_multipage_error); |
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1574 } |
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|
1575 |
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|
1576 // print out LDR_CNTRL because it affects the default page sizes |
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1577 const char* const ldr_cntrl = ::getenv("LDR_CNTRL"); |
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1578 st->print_cr(" LDR_CNTRL=%s.", ldr_cntrl ? ldr_cntrl : "<unset>"); |
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1579 |
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1580 const char* const extshm = ::getenv("EXTSHM"); |
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1581 st->print_cr(" EXTSHM=%s.", extshm ? extshm : "<unset>"); |
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|
1582 |
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1583 // Call os::Aix::get_meminfo() to retrieve memory statistics. |
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1584 os::Aix::meminfo_t mi; |
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1585 if (os::Aix::get_meminfo(&mi)) { |
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|
1586 char buffer[256]; |
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|
1587 if (os::Aix::on_aix()) { |
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|
1588 jio_snprintf(buffer, sizeof(buffer), |
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|
1589 " physical total : %llu\n" |
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|
1590 " physical free : %llu\n" |
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|
1591 " swap total : %llu\n" |
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|
1592 " swap free : %llu\n", |
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|
1593 mi.real_total, |
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|
1594 mi.real_free, |
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|
1595 mi.pgsp_total, |
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|
1596 mi.pgsp_free); |
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|
1597 } else { |
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|
1598 Unimplemented(); |
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|
1599 } |
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|
1600 st->print_raw(buffer); |
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|
1601 } else { |
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|
1602 st->print_cr(" (no more information available)"); |
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|
1603 } |
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|
1604 } |
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|
1605 |
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|
1606 void os::pd_print_cpu_info(outputStream* st) { |
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|
1607 // cpu |
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|
1608 st->print("CPU:"); |
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|
1609 st->print("total %d", os::processor_count()); |
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1610 // It's not safe to query number of active processors after crash |
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|
1611 // st->print("(active %d)", os::active_processor_count()); |
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|
1612 st->print(" %s", VM_Version::cpu_features()); |
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|
1613 st->cr(); |
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|
1614 } |
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|
1615 |
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|
1616 void os::print_siginfo(outputStream* st, void* siginfo) { |
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|
1617 // Use common posix version. |
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|
1618 os::Posix::print_siginfo_brief(st, (const siginfo_t*) siginfo); |
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|
1619 st->cr(); |
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|
1620 } |
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|
1621 |
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|
1622 |
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|
1623 static void print_signal_handler(outputStream* st, int sig, |
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|
1624 char* buf, size_t buflen); |
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|
1625 |
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|
1626 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { |
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|
1627 st->print_cr("Signal Handlers:"); |
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|
1628 print_signal_handler(st, SIGSEGV, buf, buflen); |
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|
1629 print_signal_handler(st, SIGBUS , buf, buflen); |
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|
1630 print_signal_handler(st, SIGFPE , buf, buflen); |
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|
1631 print_signal_handler(st, SIGPIPE, buf, buflen); |
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|
1632 print_signal_handler(st, SIGXFSZ, buf, buflen); |
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|
1633 print_signal_handler(st, SIGILL , buf, buflen); |
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|
1634 print_signal_handler(st, INTERRUPT_SIGNAL, buf, buflen); |
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|
1635 print_signal_handler(st, SR_signum, buf, buflen); |
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|
1636 print_signal_handler(st, SHUTDOWN1_SIGNAL, buf, buflen); |
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|
1637 print_signal_handler(st, SHUTDOWN2_SIGNAL , buf, buflen); |
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|
1638 print_signal_handler(st, SHUTDOWN3_SIGNAL , buf, buflen); |
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|
1639 print_signal_handler(st, BREAK_SIGNAL, buf, buflen); |
666e6ce3976c
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|
1640 print_signal_handler(st, SIGTRAP, buf, buflen); |
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|
1641 print_signal_handler(st, SIGDANGER, buf, buflen); |
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|
1642 } |
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|
1643 |
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|
1644 static char saved_jvm_path[MAXPATHLEN] = {0}; |
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|
1645 |
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|
1646 // Find the full path to the current module, libjvm.so or libjvm_g.so |
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|
1647 void os::jvm_path(char *buf, jint buflen) { |
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|
1648 // Error checking. |
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|
1649 if (buflen < MAXPATHLEN) { |
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|
1650 assert(false, "must use a large-enough buffer"); |
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|
1651 buf[0] = '\0'; |
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|
1652 return; |
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|
1653 } |
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|
1654 // Lazy resolve the path to current module. |
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|
1655 if (saved_jvm_path[0] != 0) { |
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|
1656 strcpy(buf, saved_jvm_path); |
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|
1657 return; |
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|
1658 } |
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|
1659 |
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|
1660 Dl_info dlinfo; |
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|
1661 int ret = dladdr(CAST_FROM_FN_PTR(void *, os::jvm_path), &dlinfo); |
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|
1662 assert(ret != 0, "cannot locate libjvm"); |
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|
1663 char* rp = realpath((char *)dlinfo.dli_fname, buf); |
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|
1664 assert(rp != NULL, "error in realpath(): maybe the 'path' argument is too long?"); |
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|
1665 |
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|
1666 strcpy(saved_jvm_path, buf); |
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|
1667 } |
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|
1668 |
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|
1669 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { |
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|
1670 // no prefix required, not even "_" |
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|
1671 } |
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|
1672 |
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|
1673 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { |
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|
1674 // no suffix required |
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|
1675 } |
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|
1676 |
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|
1677 //////////////////////////////////////////////////////////////////////////////// |
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|
1678 // sun.misc.Signal support |
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|
1679 |
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|
1680 static volatile jint sigint_count = 0; |
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|
1681 |
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|
1682 static void |
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|
1683 UserHandler(int sig, void *siginfo, void *context) { |
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|
1684 // 4511530 - sem_post is serialized and handled by the manager thread. When |
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|
1685 // the program is interrupted by Ctrl-C, SIGINT is sent to every thread. We |
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|
1686 // don't want to flood the manager thread with sem_post requests. |
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|
1687 if (sig == SIGINT && Atomic::add(1, &sigint_count) > 1) |
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|
1688 return; |
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|
1689 |
666e6ce3976c
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|
1690 // Ctrl-C is pressed during error reporting, likely because the error |
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|
1691 // handler fails to abort. Let VM die immediately. |
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|
1692 if (sig == SIGINT && is_error_reported()) { |
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|
1693 os::die(); |
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|
1694 } |
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|
1695 |
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|
1696 os::signal_notify(sig); |
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|
1697 } |
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|
1698 |
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|
1699 void* os::user_handler() { |
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|
1700 return CAST_FROM_FN_PTR(void*, UserHandler); |
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|
1701 } |
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|
1702 |
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|
1703 extern "C" { |
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|
1704 typedef void (*sa_handler_t)(int); |
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|
1705 typedef void (*sa_sigaction_t)(int, siginfo_t *, void *); |
666e6ce3976c
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|
1706 } |
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|
1707 |
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|
1708 void* os::signal(int signal_number, void* handler) { |
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|
1709 struct sigaction sigAct, oldSigAct; |
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|
1710 |
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|
1711 sigfillset(&(sigAct.sa_mask)); |
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|
1712 |
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|
1713 // Do not block out synchronous signals in the signal handler. |
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|
1714 // Blocking synchronous signals only makes sense if you can really |
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|
1715 // be sure that those signals won't happen during signal handling, |
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|
1716 // when the blocking applies. Normal signal handlers are lean and |
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diff
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|
1717 // do not cause signals. But our signal handlers tend to be "risky" |
666e6ce3976c
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|
1718 // - secondary SIGSEGV, SIGILL, SIGBUS' may and do happen. |
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|
1719 // On AIX, PASE there was a case where a SIGSEGV happened, followed |
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|
1720 // by a SIGILL, which was blocked due to the signal mask. The process |
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diff
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|
1721 // just hung forever. Better to crash from a secondary signal than to hang. |
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|
1722 sigdelset(&(sigAct.sa_mask), SIGSEGV); |
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|
1723 sigdelset(&(sigAct.sa_mask), SIGBUS); |
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|
1724 sigdelset(&(sigAct.sa_mask), SIGILL); |
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|
1725 sigdelset(&(sigAct.sa_mask), SIGFPE); |
666e6ce3976c
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diff
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|
1726 sigdelset(&(sigAct.sa_mask), SIGTRAP); |
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|
1727 |
666e6ce3976c
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|
1728 sigAct.sa_flags = SA_RESTART|SA_SIGINFO; |
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diff
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|
1729 |
666e6ce3976c
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|
1730 sigAct.sa_handler = CAST_TO_FN_PTR(sa_handler_t, handler); |
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|
1731 |
666e6ce3976c
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|
1732 if (sigaction(signal_number, &sigAct, &oldSigAct)) { |
666e6ce3976c
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diff
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|
1733 // -1 means registration failed |
666e6ce3976c
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diff
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|
1734 return (void *)-1; |
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diff
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|
1735 } |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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|
1736 |
666e6ce3976c
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|
1737 return CAST_FROM_FN_PTR(void*, oldSigAct.sa_handler); |
666e6ce3976c
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|
1738 } |
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|
1739 |
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|
1740 void os::signal_raise(int signal_number) { |
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|
1741 ::raise(signal_number); |
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|
1742 } |
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|
1743 |
666e6ce3976c
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|
1744 // |
666e6ce3976c
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|
1745 // The following code is moved from os.cpp for making this |
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|
1746 // code platform specific, which it is by its very nature. |
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|
1747 // |
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|
1748 |
666e6ce3976c
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|
1749 // Will be modified when max signal is changed to be dynamic |
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|
1750 int os::sigexitnum_pd() { |
666e6ce3976c
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diff
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|
1751 return NSIG; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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|
1752 } |
666e6ce3976c
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|
1753 |
666e6ce3976c
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|
1754 // a counter for each possible signal value |
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changeset
|
1755 static volatile jint pending_signals[NSIG+1] = { 0 }; |
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|
1756 |
666e6ce3976c
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|
1757 // Linux(POSIX) specific hand shaking semaphore. |
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changeset
|
1758 static sem_t sig_sem; |
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|
1759 |
666e6ce3976c
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|
1760 void os::signal_init_pd() { |
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|
1761 // Initialize signal structures |
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|
1762 ::memset((void*)pending_signals, 0, sizeof(pending_signals)); |
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|
1763 |
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|
1764 // Initialize signal semaphore |
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|
1765 int rc = ::sem_init(&sig_sem, 0, 0); |
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|
1766 guarantee(rc != -1, "sem_init failed"); |
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|
1767 } |
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|
1768 |
666e6ce3976c
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|
1769 void os::signal_notify(int sig) { |
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|
1770 Atomic::inc(&pending_signals[sig]); |
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|
1771 ::sem_post(&sig_sem); |
666e6ce3976c
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1772 } |
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1773 |
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1774 static int check_pending_signals(bool wait) { |
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1775 Atomic::store(0, &sigint_count); |
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1776 for (;;) { |
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1777 for (int i = 0; i < NSIG + 1; i++) { |
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1778 jint n = pending_signals[i]; |
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1779 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { |
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1780 return i; |
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1781 } |
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1782 } |
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1783 if (!wait) { |
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1784 return -1; |
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1785 } |
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1786 JavaThread *thread = JavaThread::current(); |
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1787 ThreadBlockInVM tbivm(thread); |
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1788 |
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1789 bool threadIsSuspended; |
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1790 do { |
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1791 thread->set_suspend_equivalent(); |
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1792 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() |
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1793 |
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1794 ::sem_wait(&sig_sem); |
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1795 |
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1796 // were we externally suspended while we were waiting? |
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1797 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); |
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1798 if (threadIsSuspended) { |
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1799 // |
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1800 // The semaphore has been incremented, but while we were waiting |
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1801 // another thread suspended us. We don't want to continue running |
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1802 // while suspended because that would surprise the thread that |
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1803 // suspended us. |
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1804 // |
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1805 ::sem_post(&sig_sem); |
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1806 |
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1807 thread->java_suspend_self(); |
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1808 } |
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1809 } while (threadIsSuspended); |
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1810 } |
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1811 } |
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1812 |
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1813 int os::signal_lookup() { |
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1814 return check_pending_signals(false); |
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1815 } |
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1816 |
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1817 int os::signal_wait() { |
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1818 return check_pending_signals(true); |
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1819 } |
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1820 |
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1821 //////////////////////////////////////////////////////////////////////////////// |
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1822 // Virtual Memory |
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1823 |
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1824 // AddrRange describes an immutable address range |
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1825 // |
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1826 // This is a helper class for the 'shared memory bookkeeping' below. |
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1827 class AddrRange { |
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1828 friend class ShmBkBlock; |
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1829 |
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1830 char* _start; |
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1831 size_t _size; |
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1832 |
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1833 public: |
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1834 |
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1835 AddrRange(char* start, size_t size) |
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1836 : _start(start), _size(size) |
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1837 {} |
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1838 |
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1839 AddrRange(const AddrRange& r) |
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1840 : _start(r.start()), _size(r.size()) |
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1841 {} |
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1842 |
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1843 char* start() const { return _start; } |
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1844 size_t size() const { return _size; } |
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1845 char* end() const { return _start + _size; } |
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1846 bool is_empty() const { return _size == 0 ? true : false; } |
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1847 |
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1848 static AddrRange empty_range() { return AddrRange(NULL, 0); } |
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1849 |
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1850 bool contains(const char* p) const { |
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1851 return start() <= p && end() > p; |
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1852 } |
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|
1853 |
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1854 bool contains(const AddrRange& range) const { |
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1855 return start() <= range.start() && end() >= range.end(); |
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1856 } |
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|
1857 |
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1858 bool intersects(const AddrRange& range) const { |
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1859 return (range.start() <= start() && range.end() > start()) || |
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1860 (range.start() < end() && range.end() >= end()) || |
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1861 contains(range); |
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|
1862 } |
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|
1863 |
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1864 bool is_same_range(const AddrRange& range) const { |
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1865 return start() == range.start() && size() == range.size(); |
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1866 } |
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|
1867 |
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1868 // return the closest inside range consisting of whole pages |
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1869 AddrRange find_closest_aligned_range(size_t pagesize) const { |
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1870 if (pagesize == 0 || is_empty()) { |
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1871 return empty_range(); |
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1872 } |
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1873 char* const from = (char*)align_size_up((intptr_t)_start, pagesize); |
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1874 char* const to = (char*)align_size_down((intptr_t)end(), pagesize); |
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1875 if (from > to) { |
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|
1876 return empty_range(); |
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|
1877 } |
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|
1878 return AddrRange(from, to - from); |
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1879 } |
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|
1880 }; |
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|
1881 |
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|
1882 //////////////////////////////////////////////////////////////////////////// |
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1883 // shared memory bookkeeping |
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|
1884 // |
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1885 // the os::reserve_memory() API and friends hand out different kind of memory, depending |
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1886 // on need and circumstances. Memory may be allocated with mmap() or with shmget/shmat. |
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1887 // |
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1888 // But these memory types have to be treated differently. For example, to uncommit |
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1889 // mmap-based memory, msync(MS_INVALIDATE) is needed, to uncommit shmat-based memory, |
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1890 // disclaim64() is needed. |
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|
1891 // |
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1892 // Therefore we need to keep track of the allocated memory segments and their |
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1893 // properties. |
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|
1894 |
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1895 // ShmBkBlock: base class for all blocks in the shared memory bookkeeping |
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|
1896 class ShmBkBlock { |
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|
1897 |
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|
1898 ShmBkBlock* _next; |
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|
1899 |
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|
1900 protected: |
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1901 |
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1902 AddrRange _range; |
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1903 const size_t _pagesize; |
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1904 const bool _pinned; |
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1905 |
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1906 public: |
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1907 |
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1908 ShmBkBlock(AddrRange range, size_t pagesize, bool pinned) |
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1909 : _range(range), _pagesize(pagesize), _pinned(pinned) , _next(NULL) { |
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1910 |
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1911 assert(_pagesize == SIZE_4K || _pagesize == SIZE_64K || _pagesize == SIZE_16M, "invalid page size"); |
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1912 assert(!_range.is_empty(), "invalid range"); |
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1913 } |
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1914 |
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1915 virtual void print(outputStream* st) const { |
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1916 st->print("0x%p ... 0x%p (%llu) - %d %s pages - %s", |
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1917 _range.start(), _range.end(), _range.size(), |
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1918 _range.size() / _pagesize, describe_pagesize(_pagesize), |
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1919 _pinned ? "pinned" : ""); |
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1920 } |
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1921 |
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1922 enum Type { MMAP, SHMAT }; |
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1923 virtual Type getType() = 0; |
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1924 |
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1925 char* base() const { return _range.start(); } |
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1926 size_t size() const { return _range.size(); } |
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1927 |
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1928 void setAddrRange(AddrRange range) { |
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1929 _range = range; |
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1930 } |
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1931 |
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1932 bool containsAddress(const char* p) const { |
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1933 return _range.contains(p); |
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1934 } |
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1935 |
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1936 bool containsRange(const char* p, size_t size) const { |
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1937 return _range.contains(AddrRange((char*)p, size)); |
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1938 } |
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1939 |
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1940 bool isSameRange(const char* p, size_t size) const { |
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1941 return _range.is_same_range(AddrRange((char*)p, size)); |
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1942 } |
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1943 |
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1944 virtual bool disclaim(char* p, size_t size) = 0; |
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1945 virtual bool release() = 0; |
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1946 |
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1947 // blocks live in a list. |
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1948 ShmBkBlock* next() const { return _next; } |
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1949 void set_next(ShmBkBlock* blk) { _next = blk; } |
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1950 |
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1951 }; // end: ShmBkBlock |
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1952 |
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1953 |
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1954 // ShmBkMappedBlock: describes an block allocated with mmap() |
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1955 class ShmBkMappedBlock : public ShmBkBlock { |
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1956 public: |
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1957 |
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1958 ShmBkMappedBlock(AddrRange range) |
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1959 : ShmBkBlock(range, SIZE_4K, false) {} // mmap: always 4K, never pinned |
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1960 |
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1961 void print(outputStream* st) const { |
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1962 ShmBkBlock::print(st); |
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1963 st->print_cr(" - mmap'ed"); |
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1964 } |
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1965 |
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1966 Type getType() { |
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1967 return MMAP; |
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1968 } |
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1969 |
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1970 bool disclaim(char* p, size_t size) { |
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1971 |
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1972 AddrRange r(p, size); |
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1973 |
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1974 guarantee(_range.contains(r), "invalid disclaim"); |
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1975 |
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1976 // only disclaim whole ranges. |
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1977 const AddrRange r2 = r.find_closest_aligned_range(_pagesize); |
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1978 if (r2.is_empty()) { |
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1979 return true; |
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1980 } |
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1981 |
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1982 const int rc = ::msync(r2.start(), r2.size(), MS_INVALIDATE); |
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1983 |
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1984 if (rc != 0) { |
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1985 warning("msync(0x%p, %llu, MS_INVALIDATE) failed (%d)\n", r2.start(), r2.size(), errno); |
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1986 } |
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1987 |
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1988 return rc == 0 ? true : false; |
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1989 } |
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1990 |
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1991 bool release() { |
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1992 // mmap'ed blocks are released using munmap |
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1993 if (::munmap(_range.start(), _range.size()) != 0) { |
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1994 warning("munmap(0x%p, %llu) failed (%d)\n", _range.start(), _range.size(), errno); |
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1995 return false; |
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1996 } |
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1997 return true; |
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1998 } |
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1999 }; // end: ShmBkMappedBlock |
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2000 |
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2001 // ShmBkShmatedBlock: describes an block allocated with shmget/shmat() |
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2002 class ShmBkShmatedBlock : public ShmBkBlock { |
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2003 public: |
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2004 |
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2005 ShmBkShmatedBlock(AddrRange range, size_t pagesize, bool pinned) |
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2006 : ShmBkBlock(range, pagesize, pinned) {} |
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2007 |
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2008 void print(outputStream* st) const { |
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2009 ShmBkBlock::print(st); |
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2010 st->print_cr(" - shmat'ed"); |
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2011 } |
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2012 |
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2013 Type getType() { |
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2014 return SHMAT; |
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2015 } |
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2016 |
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2017 bool disclaim(char* p, size_t size) { |
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2018 |
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2019 AddrRange r(p, size); |
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2020 |
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2021 if (_pinned) { |
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2022 return true; |
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2023 } |
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2024 |
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2025 // shmat'ed blocks are disclaimed using disclaim64 |
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2026 guarantee(_range.contains(r), "invalid disclaim"); |
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2027 |
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2028 // only disclaim whole ranges. |
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2029 const AddrRange r2 = r.find_closest_aligned_range(_pagesize); |
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2030 if (r2.is_empty()) { |
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|
2031 return true; |
666e6ce3976c
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simonis
parents:
diff
changeset
|
2032 } |
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simonis
parents:
diff
changeset
|
2033 |
666e6ce3976c
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parents:
diff
changeset
|
2034 const bool rc = my_disclaim64(r2.start(), r2.size()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
2035 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2036 if (Verbose && !rc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2037 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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diff
changeset
|
2038 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2039 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2040 return rc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2041 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2042 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2043 bool release() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2044 bool rc = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2045 if (::shmdt(_range.start()) != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2046 warning("shmdt(0x%p) failed (%d)\n", _range.start(), errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2047 } else { |
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parents:
diff
changeset
|
2048 rc = true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2049 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2050 return rc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2051 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2052 |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2053 }; // end: ShmBkShmatedBlock |
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diff
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|
2054 |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2055 static ShmBkBlock* g_shmbk_list = NULL; |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2056 static volatile jint g_shmbk_table_lock = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
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|
2057 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2058 // keep some usage statistics |
666e6ce3976c
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simonis
parents:
diff
changeset
|
2059 static struct { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2060 int nodes; // number of nodes in list |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2061 size_t bytes; // reserved - not committed - bytes. |
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diff
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|
2062 int reserves; // how often reserve was called |
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diff
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|
2063 int lookups; // how often a lookup was made |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
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|
2064 } g_shmbk_stats = { 0, 0, 0, 0 }; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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|
2065 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2066 // add information about a shared memory segment to the bookkeeping |
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diff
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|
2067 static void shmbk_register(ShmBkBlock* p_block) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2068 guarantee(p_block, "logic error"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
2069 p_block->set_next(g_shmbk_list); |
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parents:
diff
changeset
|
2070 g_shmbk_list = p_block; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
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|
2071 g_shmbk_stats.reserves ++; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2072 g_shmbk_stats.bytes += p_block->size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
2073 g_shmbk_stats.nodes ++; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2074 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2075 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2076 // 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
|
2077 static void shmbk_unregister(ShmBkBlock* p_block) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2078 ShmBkBlock* p = g_shmbk_list; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2079 ShmBkBlock* prev = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2080 while (p) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2081 if (p == p_block) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2082 if (prev) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2083 prev->set_next(p->next()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2084 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2085 g_shmbk_list = p->next(); |
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 g_shmbk_stats.nodes --; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2088 g_shmbk_stats.bytes -= p->size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2089 return; |
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 prev = p; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2092 p = p->next(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2093 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2094 assert(false, "should not happen"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2095 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2096 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2097 // 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
|
2098 // using the returned block info must happen under lock protection |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2099 static ShmBkBlock* shmbk_find_by_containing_address(const char* addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
2100 g_shmbk_stats.lookups ++; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2101 ShmBkBlock* p = g_shmbk_list; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2102 while (p) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2103 if (p->containsAddress(addr)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2104 return p; |
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 p = p->next(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2107 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2108 return NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2109 } |
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 // 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
|
2112 void shmbk_dump_info() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2113 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
|
2114 "total reserves: %d total lookups: %d)", |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2115 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
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diff
changeset
|
2116 const ShmBkBlock* p = g_shmbk_list; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2117 int i = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2118 while (p) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2119 p->print(tty); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2120 p = p->next(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2121 i ++; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2125 #define LOCK_SHMBK { ThreadCritical _LOCK_SHMBK; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2126 #define UNLOCK_SHMBK } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2127 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2128 // End: shared memory bookkeeping |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2129 //////////////////////////////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2130 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2131 int os::vm_page_size() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2132 // Seems redundant as all get out |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2133 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
|
2134 return os::Aix::page_size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2135 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2136 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2137 // Aix allocates memory by pages. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2138 int os::vm_allocation_granularity() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2139 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
|
2140 return os::Aix::page_size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2141 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2142 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2143 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
|
2144 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2145 // Commit is a noop. There is no explicit commit |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2146 // needed on AIX. Memory is committed when touched. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2147 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2148 // Debug : check address range for validity |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2149 #ifdef ASSERT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2150 LOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2151 ShmBkBlock* const block = shmbk_find_by_containing_address(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2152 if (!block) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2153 fprintf(stderr, "invalid pointer: " INTPTR_FORMAT "\n", addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2154 shmbk_dump_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2155 assert(false, "invalid pointer"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2156 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2157 } else if (!block->containsRange(addr, size)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2158 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
|
2159 shmbk_dump_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2160 assert(false, "invalid range"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2161 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2162 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2163 UNLOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2164 #endif // ASSERT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2165 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2166 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2167 } |
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 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
|
2170 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
|
2171 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2172 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2173 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
|
2174 const char* mesg) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2175 assert(mesg != NULL, "mesg must be specified"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2176 os::Aix::commit_memory_impl(addr, size, exec); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2179 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
|
2180 size_t alignment_hint, bool exec) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2181 return os::Aix::commit_memory_impl(addr, size, exec); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2182 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2183 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2184 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
|
2185 bool exec) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2186 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
|
2187 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2188 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2189 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
|
2190 size_t alignment_hint, bool exec, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2191 const char* mesg) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2192 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
|
2193 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2194 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2195 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
|
2196 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2197 // 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
|
2198 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2199 bool rc = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2200 LOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2201 ShmBkBlock* const block = shmbk_find_by_containing_address(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2202 if (!block) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2203 fprintf(stderr, "invalid pointer: 0x%p.\n", addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2204 shmbk_dump_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2205 assert(false, "invalid pointer"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2206 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2207 } else if (!block->containsRange(addr, size)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2208 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
|
2209 shmbk_dump_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2210 assert(false, "invalid range"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2211 return false; |
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 rc = block->disclaim(addr, size); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2214 UNLOCK_SHMBK |
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 if (Verbose && !rc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2217 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
|
2218 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2219 return rc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2220 } |
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 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
|
2223 return os::guard_memory(addr, size); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2224 } |
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 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
|
2227 return os::unguard_memory(addr, size); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2228 } |
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 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
|
2231 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2232 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2233 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
|
2234 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2235 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2236 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
|
2237 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2238 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2239 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
|
2240 } |
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 bool os::numa_topology_changed() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2243 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2244 } |
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 size_t os::numa_get_groups_num() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2247 return 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2248 } |
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 int os::numa_get_group_id() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2251 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2252 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2253 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2254 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
|
2255 if (size > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2256 ids[0] = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2257 return 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2258 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2259 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2260 } |
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 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
|
2263 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2264 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2265 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2266 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
|
2267 return end; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2268 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2269 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2270 // Flags for reserve_shmatted_memory: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2271 #define RESSHM_WISHADDR_OR_FAIL 1 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2272 #define RESSHM_TRY_16M_PAGES 2 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2273 #define RESSHM_16M_PAGES_OR_FAIL 4 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2274 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2275 // Result of reserve_shmatted_memory: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2276 struct shmatted_memory_info_t { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2277 char* addr; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2278 size_t pagesize; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2279 bool pinned; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2280 }; |
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 // Reserve a section of shmatted memory. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2283 // params: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2284 // bytes [in]: size of memory, in bytes |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2285 // requested_addr [in]: wish address. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
2286 // NULL = no wish. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2287 // 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
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diff
changeset
|
2288 // 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
|
2289 // another pointer is returned. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2290 // flags [in]: some flags. Valid flags are: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2291 // 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
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diff
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|
2292 // RESSHM_TRY_16M_PAGES - try to allocate from 16M page pool |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
2293 // (requires UseLargePages and Use16MPages) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2294 // 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
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diff
changeset
|
2295 // Otherwise any other page size will do. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2296 // p_info [out] : holds information about the created shared memory segment. |
666e6ce3976c
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diff
changeset
|
2297 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
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diff
changeset
|
2298 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2299 assert(p_info, "parameter error"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2300 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2301 // init output struct. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2302 p_info->addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2303 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2304 // neither should we be here for EXTSHM=ON. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2305 if (os::Aix::extshm()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2306 ShouldNotReachHere(); |
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
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parents:
diff
changeset
|
2308 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2309 // extract flags. sanity checks. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2310 const bool wishaddr_or_fail = |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2311 flags & RESSHM_WISHADDR_OR_FAIL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2312 const bool try_16M_pages = |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2313 flags & RESSHM_TRY_16M_PAGES; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2314 const bool f16M_pages_or_fail = |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2315 flags & RESSHM_16M_PAGES_OR_FAIL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2316 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2317 // 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
|
2318 // 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
|
2319 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
|
2320 if (wishaddr_or_fail) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2321 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2322 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2323 requested_addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2324 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2325 } |
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 char* addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2328 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2329 // 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
|
2330 // pagesize dynamically. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2331 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
|
2332 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2333 // reserve the shared segment |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2334 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
|
2335 if (shmid == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2336 warning("shmget(.., %lld, ..) failed (errno: %d).", size, errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2337 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2338 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2339 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2340 // Important note: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2341 // 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
|
2342 // 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
|
2343 // survive the process. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2344 // 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
|
2345 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2346 // try forcing the page size |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2347 size_t pagesize = -1; // unknown so far |
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 if (UseLargePages) { |
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 struct shmid_ds shmbuf; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2352 memset(&shmbuf, 0, sizeof(shmbuf)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2353 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2354 // First, try to take from 16M page pool if... |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2355 if (os::Aix::can_use_16M_pages() // we can ... |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2356 && 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
|
2357 && try_16M_pages) { // caller wants us to. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2358 shmbuf.shm_pagesize = SIZE_16M; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2359 if (shmctl(shmid, SHM_PAGESIZE, &shmbuf) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2360 pagesize = SIZE_16M; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2361 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2362 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
|
2363 size / SIZE_16M, errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2364 if (f16M_pages_or_fail) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2365 goto cleanup_shm; |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2368 } |
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 // 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
|
2371 // because the 64K page pool may also be exhausted. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2372 if (pagesize == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2373 shmbuf.shm_pagesize = SIZE_64K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2374 if (shmctl(shmid, SHM_PAGESIZE, &shmbuf) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2375 pagesize = SIZE_64K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2376 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2377 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
|
2378 size / SIZE_64K, errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2379 // 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
|
2380 // 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
|
2381 // from 4K if LDR_CNTRL SHM_PSIZE is set) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2382 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2383 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2384 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2385 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2386 // sanity point |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2387 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
|
2388 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2389 // Now attach the shared segment. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2390 addr = (char*) shmat(shmid, requested_addr, 0); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2391 if (addr == (char*)-1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2392 // How to handle attach failure: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2393 // 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
|
2394 // mandatory, fail, if not, retry anywhere. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2395 // 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
|
2396 addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2397 if (requested_addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2398 if (wishaddr_or_fail) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2399 goto cleanup_shm; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2400 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2401 addr = (char*) shmat(shmid, NULL, 0); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2402 if (addr == (char*)-1) { // fatal |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2403 addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2404 warning("shmat failed (errno: %d)", errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2405 goto cleanup_shm; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2406 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2407 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2408 } else { // fatal |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2409 addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2410 warning("shmat failed (errno: %d)", errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2411 goto cleanup_shm; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2412 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2413 } |
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 // sanity point |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2416 assert(addr && addr != (char*) -1, "wrong address"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2417 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2418 // after successful Attach remove the segment - right away. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2419 if (::shmctl(shmid, IPC_RMID, NULL) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2420 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
|
2421 guarantee(false, "failed to remove shared memory segment!"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2422 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2423 shmid = -1; |
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 // 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
|
2426 // 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
|
2427 { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2428 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
|
2429 if (pagesize != -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2430 assert(pagesize == real_pagesize, "unexpected pagesize after shmat"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2431 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2432 pagesize = real_pagesize; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2433 } |
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 // Now register the reserved block with internal book keeping. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2437 LOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2438 const bool pinned = pagesize >= SIZE_16M ? true : false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2439 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
|
2440 assert(p_block, ""); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2441 shmbk_register(p_block); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2442 UNLOCK_SHMBK |
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 cleanup_shm: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2445 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2446 // 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
|
2447 if (shmid != -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2448 if (::shmctl(shmid, IPC_RMID, NULL) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2449 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
|
2450 guarantee(false, "failed to remove shared memory segment!"); |
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 shmid = -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2453 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2454 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2455 // trace |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2456 if (Verbose && !addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2457 if (requested_addr != NULL) { |
14451 | 2458 warning("failed to shm-allocate 0x%llX bytes at wish address 0x%p.", size, requested_addr); |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2459 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2460 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
|
2461 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2462 } |
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 // hand info to caller |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2465 if (addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2466 p_info->addr = addr; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2467 p_info->pagesize = pagesize; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2468 p_info->pinned = pagesize == SIZE_16M ? true : false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2469 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2470 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2471 // sanity test: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2472 if (requested_addr && addr && wishaddr_or_fail) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2473 guarantee(addr == requested_addr, "shmat error"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2474 } |
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 // 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
|
2477 guarantee(shmid == -1, "dangling shm segments"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2478 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2479 return addr ? true : false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2480 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2481 } // end: reserve_shmatted_memory |
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 // 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
|
2484 // will return NULL in case of an error. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2485 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
|
2486 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2487 // 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
|
2488 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
|
2489 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
|
2490 return NULL; |
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 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
|
2494 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2495 // 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
|
2496 // msync(MS_INVALIDATE) (see os::uncommit_memory) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2497 int flags = MAP_ANONYMOUS | MAP_SHARED; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2498 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2499 // 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
|
2500 // 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
|
2501 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2502 // 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
|
2503 // 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
|
2504 // 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
|
2505 // 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
|
2506 // testing. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2507 if (requested_addr != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2508 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
|
2509 flags |= MAP_FIXED; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2512 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
|
2513 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2514 if (addr == MAP_FAILED) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2515 // 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
|
2516 // anywhere is a fatal error. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2517 if (requested_addr == NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2518 // 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
|
2519 warning("mmap(NULL, 0x%llX, ..) failed (%d)", size, errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2520 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2521 addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2522 goto cleanup_mmap; |
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 // 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
|
2526 if (addr && requested_addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2527 guarantee(addr == requested_addr, "unexpected"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2528 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2529 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2530 // register this mmap'ed segment with book keeping |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2531 LOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2532 ShmBkMappedBlock* const p_block = new ShmBkMappedBlock(AddrRange(addr, size)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2533 assert(p_block, ""); |
666e6ce3976c
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diff
changeset
|
2534 shmbk_register(p_block); |
666e6ce3976c
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parents:
diff
changeset
|
2535 UNLOCK_SHMBK |
666e6ce3976c
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parents:
diff
changeset
|
2536 |
666e6ce3976c
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parents:
diff
changeset
|
2537 cleanup_mmap: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2538 |
14451 | 2539 // trace |
2540 if (Verbose) { | |
2541 if (addr) { | |
14415
666e6ce3976c
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changeset
|
2542 fprintf(stderr, "mmap-allocated 0x%p .. 0x%p (0x%llX bytes)\n", addr, addr + bytes, bytes); |
666e6ce3976c
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diff
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|
2543 } |
14451 | 2544 else { |
2545 if (requested_addr != NULL) { | |
2546 warning("failed to mmap-allocate 0x%llX bytes at wish address 0x%p.", bytes, requested_addr); | |
2547 } else { | |
2548 warning("failed to mmap-allocate 0x%llX bytes at any address.", bytes); | |
2549 } | |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2550 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2551 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2552 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2553 return addr; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2554 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
2555 } // end: reserve_mmaped_memory |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2556 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2557 // Reserves and attaches a shared memory segment. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2558 // Will assert if a wish address is given and could not be obtained. |
666e6ce3976c
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parents:
diff
changeset
|
2559 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
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diff
changeset
|
2560 return os::attempt_reserve_memory_at(bytes, requested_addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2561 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2562 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2563 bool os::pd_release_memory(char* addr, size_t size) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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changeset
|
2564 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2565 // delegate to ShmBkBlock class which knows how to uncommit its memory. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2566 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2567 bool rc = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
2568 LOCK_SHMBK |
666e6ce3976c
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parents:
diff
changeset
|
2569 ShmBkBlock* const block = shmbk_find_by_containing_address(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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changeset
|
2570 if (!block) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2571 fprintf(stderr, "invalid pointer: 0x%p.\n", addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2572 shmbk_dump_info(); |
666e6ce3976c
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parents:
diff
changeset
|
2573 assert(false, "invalid pointer"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2574 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2575 } |
666e6ce3976c
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parents:
diff
changeset
|
2576 else if (!block->isSameRange(addr, size)) { |
666e6ce3976c
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diff
changeset
|
2577 if (block->getType() == ShmBkBlock::MMAP) { |
666e6ce3976c
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parents:
diff
changeset
|
2578 // Release only the same range or a the beginning or the end of a range. |
666e6ce3976c
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diff
changeset
|
2579 if (block->base() == addr && size < block->size()) { |
666e6ce3976c
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parents:
diff
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|
2580 ShmBkMappedBlock* const b = new ShmBkMappedBlock(AddrRange(block->base() + size, block->size() - size)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2581 assert(b, ""); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2582 shmbk_register(b); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2583 block->setAddrRange(AddrRange(addr, size)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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|
2584 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2585 else if (addr > block->base() && addr + size == block->base() + block->size()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2586 ShmBkMappedBlock* const b = new ShmBkMappedBlock(AddrRange(block->base(), block->size() - size)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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changeset
|
2587 assert(b, ""); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2588 shmbk_register(b); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2589 block->setAddrRange(AddrRange(addr, size)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2590 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2591 else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2592 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
|
2593 shmbk_dump_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2594 assert(false, "invalid mmap range"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2595 return false; |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2598 else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2599 // Release only the same range. No partial release allowed. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2600 // 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
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parents:
diff
changeset
|
2601 // than the block is due to alignment etc. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2602 if (block->base() != addr || block->size() < size) { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
2603 fprintf(stderr, "invalid shmget range: 0x%p .. 0x%p.\n", addr, addr + size); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2604 shmbk_dump_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2605 assert(false, "invalid shmget range"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2606 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2607 } |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2610 rc = block->release(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2611 assert(rc, "release failed"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2612 // remove block from bookkeeping |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2613 shmbk_unregister(block); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2614 delete block; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2615 UNLOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2616 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2617 if (!rc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2618 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
|
2619 } |
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 return rc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2622 } |
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 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
|
2625 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2626 // 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
|
2627 // 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
|
2628 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2629 // This means if the memory was allocated using shmget/shmat, protection wont work |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2630 // but mprotect will still return 0: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2631 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2632 // 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
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diff
changeset
|
2633 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2634 bool rc = ::mprotect(addr, size, prot) == 0 ? true : false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2635 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2636 if (!rc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2637 const char* const s_errno = strerror(errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2638 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
|
2639 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2640 } |
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 // mprotect success check |
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 // 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
|
2645 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2646 // 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
|
2647 // 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
|
2648 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2649 if (!os::Aix::xpg_sus_mode()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2650 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2651 if (StubRoutines::SafeFetch32_stub()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2652 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2653 const bool read_protected = |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2654 (SafeFetch32((int*)addr, 0x12345678) == 0x12345678 && |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2655 SafeFetch32((int*)addr, 0x76543210) == 0x76543210) ? true : false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2656 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2657 if (prot & PROT_READ) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2658 rc = !read_protected; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2659 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2660 rc = read_protected; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2661 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2662 } |
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 if (!rc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2665 assert(false, "mprotect failed."); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2666 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2667 return rc; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2670 // Set protections specified |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2671 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
|
2672 unsigned int p = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2673 switch (prot) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2674 case MEM_PROT_NONE: p = PROT_NONE; break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2675 case MEM_PROT_READ: p = PROT_READ; break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2676 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
|
2677 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
|
2678 default: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2679 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2680 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2681 // is_committed is unused. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2682 return checked_mprotect(addr, size, p); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2683 } |
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 bool os::guard_memory(char* addr, size_t size) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2686 return checked_mprotect(addr, size, PROT_NONE); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2687 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2688 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2689 bool os::unguard_memory(char* addr, size_t size) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2690 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
|
2691 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2692 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2693 // Large page support |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2694 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2695 static size_t _large_page_size = 0; |
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 // Enable large page support if OS allows that. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2698 void os::large_page_init() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2699 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2700 // Note: os::Aix::query_multipage_support must run first. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2701 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2702 if (!UseLargePages) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2703 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2704 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2705 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2706 if (!Aix::can_use_64K_pages()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2707 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
|
2708 UseLargePages = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2709 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2710 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2711 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2712 if (!Aix::can_use_16M_pages() && Use16MPages) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2713 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
|
2714 " 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
|
2715 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2716 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2717 // 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
|
2718 // 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
|
2719 // alignment the garbage collector calculates with, slightly increasing |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2720 // 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
|
2721 // use 16M pages. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2722 if (Use16MPages && Aix::can_use_16M_pages()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2723 _large_page_size = SIZE_16M; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2724 _page_sizes[0] = SIZE_16M; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2725 _page_sizes[1] = SIZE_64K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2726 _page_sizes[2] = SIZE_4K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2727 _page_sizes[3] = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2728 } else if (Aix::can_use_64K_pages()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2729 _large_page_size = SIZE_64K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2730 _page_sizes[0] = SIZE_64K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2731 _page_sizes[1] = SIZE_4K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2732 _page_sizes[2] = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2733 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2734 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2735 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2736 ("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
|
2737 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2738 } // end: os::large_page_init() |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2739 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2740 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
|
2741 // "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
|
2742 // 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
|
2743 Unimplemented(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2744 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2745 } |
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 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
|
2748 // 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
|
2749 Unimplemented(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2750 return false; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2753 size_t os::large_page_size() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2754 return _large_page_size; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2755 } |
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 bool os::can_commit_large_page_memory() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2758 // 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
|
2759 // 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
|
2760 return 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 bool os::can_execute_large_page_memory() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2764 // We can do that |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2765 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2766 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2767 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2768 // 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
|
2769 // available (and not reserved for something else). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2770 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
|
2771 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2772 bool use_mmap = false; |
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 // mmap: smaller graining, no large page support |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2775 // 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
|
2776 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2777 // 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
|
2778 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2779 if (!UseLargePages || bytes < SIZE_16M) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2780 use_mmap = true; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2783 char* addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2784 if (use_mmap) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2785 addr = reserve_mmaped_memory(bytes, requested_addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2786 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2787 // 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
|
2788 shmatted_memory_info_t info; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2789 const int flags = RESSHM_WISHADDR_OR_FAIL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2790 if (reserve_shmatted_memory(bytes, requested_addr, flags, &info)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2791 addr = info.addr; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2792 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2793 } |
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 return addr; |
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 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
|
2799 return ::read(fd, buf, nBytes); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2800 } |
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 #define NANOSECS_PER_MILLISEC 1000000 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2803 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2804 int os::sleep(Thread* thread, jlong millis, bool interruptible) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2805 assert(thread == Thread::current(), "thread consistency check"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2806 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2807 // Prevent nasty overflow in deadline calculation |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2808 // by handling long sleeps similar to solaris or windows. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2809 const jlong limit = INT_MAX; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2810 int result; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2811 while (millis > limit) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2812 if ((result = os::sleep(thread, limit, interruptible)) != OS_OK) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2813 return result; |
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 millis -= limit; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2816 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2817 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2818 ParkEvent * const slp = thread->_SleepEvent; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2819 slp->reset(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2820 OrderAccess::fence(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2821 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2822 if (interruptible) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2823 jlong prevtime = javaTimeNanos(); |
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 // Prevent precision loss and too long sleeps |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2826 jlong deadline = prevtime + millis * NANOSECS_PER_MILLISEC; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2827 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2828 for (;;) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2829 if (os::is_interrupted(thread, true)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2830 return OS_INTRPT; |
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 jlong newtime = javaTimeNanos(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2834 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2835 assert(newtime >= prevtime, "time moving backwards"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2836 // 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
|
2837 // 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
|
2838 // too-short delay. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2839 millis -= (newtime - prevtime) / NANOSECS_PER_MILLISEC; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2840 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2841 if (millis <= 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2842 return OS_OK; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2843 } |
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 // Stop sleeping if we passed the deadline |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2846 if (newtime >= deadline) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2847 return OS_OK; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2848 } |
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 prevtime = newtime; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2851 |
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 assert(thread->is_Java_thread(), "sanity check"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2854 JavaThread *jt = (JavaThread *) thread; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2855 ThreadBlockInVM tbivm(jt); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2856 OSThreadWaitState osts(jt->osthread(), false /* not Object.wait() */); |
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 jt->set_suspend_equivalent(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2859 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2860 slp->park(millis); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2861 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2862 // were we externally suspended while we were waiting? |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2863 jt->check_and_wait_while_suspended(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2864 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2865 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2866 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2867 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2868 jlong prevtime = javaTimeNanos(); |
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 // Prevent precision loss and too long sleeps |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2871 jlong deadline = prevtime + millis * NANOSECS_PER_MILLISEC; |
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 for (;;) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2874 // 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
|
2875 // the 1st iteration ... |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2876 jlong newtime = javaTimeNanos(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2877 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2878 if (newtime - prevtime < 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2879 // 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
|
2880 // 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
|
2881 // - HS14 Commented out as not implemented. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2882 // - TODO Maybe we should implement it? |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2883 //assert(!Aix::supports_monotonic_clock(), "time moving backwards"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2884 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2885 millis -= (newtime - prevtime) / NANOSECS_PER_MILLISEC; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2886 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2887 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2888 if (millis <= 0) break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2889 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2890 if (newtime >= deadline) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2891 break; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2894 prevtime = newtime; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2895 slp->park(millis); |
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 return OS_OK; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2898 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2899 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2900 |
14461
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2901 void os::naked_short_sleep(jlong ms) { |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2902 struct timespec req; |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2903 |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2904 assert(ms < 1000, "Un-interruptable sleep, short time use only"); |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2905 req.tv_sec = 0; |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2906 if (ms > 0) { |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2907 req.tv_nsec = (ms % 1000) * 1000000; |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2908 } |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2909 else { |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2910 req.tv_nsec = 1; |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2911 } |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2912 |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2913 nanosleep(&req, NULL); |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2914 |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2915 return; |
14415
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2918 // 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
|
2919 void os::infinite_sleep() { |
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2920 while (true) { // sleep forever ... |
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2921 ::sleep(100); // ... 100 seconds at a time |
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|
2922 } |
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|
2923 } |
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|
2924 |
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|
2925 // Used to convert frequent JVM_Yield() to nops |
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|
2926 bool os::dont_yield() { |
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|
2927 return DontYieldALot; |
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|
2928 } |
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|
2929 |
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|
2930 void os::yield() { |
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|
2931 sched_yield(); |
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|
2932 } |
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|
2933 |
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2934 os::YieldResult os::NakedYield() { sched_yield(); return os::YIELD_UNKNOWN; } |
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|
2935 |
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|
2936 void os::yield_all(int attempts) { |
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2937 // Yields to all threads, including threads with lower priorities |
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2938 // Threads on Linux are all with same priority. The Solaris style |
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2939 // os::yield_all() with nanosleep(1ms) is not necessary. |
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|
2940 sched_yield(); |
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|
2941 } |
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|
2942 |
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2943 // Called from the tight loops to possibly influence time-sharing heuristics |
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2944 void os::loop_breaker(int attempts) { |
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2945 os::yield_all(attempts); |
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|
2946 } |
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|
2947 |
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2948 //////////////////////////////////////////////////////////////////////////////// |
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|
2949 // thread priority support |
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|
2950 |
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2951 // From AIX manpage to pthread_setschedparam |
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2952 // (see: http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp? |
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2953 // topic=/com.ibm.aix.basetechref/doc/basetrf1/pthread_setschedparam.htm): |
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2954 // |
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2955 // "If schedpolicy is SCHED_OTHER, then sched_priority must be in the |
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2956 // range from 40 to 80, where 40 is the least favored priority and 80 |
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2957 // is the most favored." |
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|
2958 // |
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2959 // (Actually, I doubt this even has an impact on AIX, as we do kernel |
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2960 // scheduling there; however, this still leaves iSeries.) |
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2961 // |
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2962 // We use the same values for AIX and PASE. |
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|
2963 int os::java_to_os_priority[CriticalPriority + 1] = { |
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2964 54, // 0 Entry should never be used |
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|
2965 |
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2966 55, // 1 MinPriority |
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2967 55, // 2 |
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2968 56, // 3 |
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|
2969 |
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|
2970 56, // 4 |
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2971 57, // 5 NormPriority |
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|
2972 57, // 6 |
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|
2973 |
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|
2974 58, // 7 |
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|
2975 58, // 8 |
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|
2976 59, // 9 NearMaxPriority |
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|
2977 |
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|
2978 60, // 10 MaxPriority |
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|
2979 |
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|
2980 60 // 11 CriticalPriority |
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|
2981 }; |
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|
2982 |
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|
2983 OSReturn os::set_native_priority(Thread* thread, int newpri) { |
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|
2984 if (!UseThreadPriorities) return OS_OK; |
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|
2985 pthread_t thr = thread->osthread()->pthread_id(); |
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|
2986 int policy = SCHED_OTHER; |
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|
2987 struct sched_param param; |
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|
2988 param.sched_priority = newpri; |
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|
2989 int ret = pthread_setschedparam(thr, policy, ¶m); |
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|
2990 |
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|
2991 if (Verbose) { |
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|
2992 if (ret == 0) { |
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|
2993 fprintf(stderr, "changed priority of thread %d to %d\n", (int)thr, newpri); |
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|
2994 } else { |
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|
2995 fprintf(stderr, "Could not changed priority for thread %d to %d (error %d, %s)\n", |
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|
2996 (int)thr, newpri, ret, strerror(ret)); |
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|
2997 } |
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|
2998 } |
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|
2999 return (ret == 0) ? OS_OK : OS_ERR; |
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|
3000 } |
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|
3001 |
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|
3002 OSReturn os::get_native_priority(const Thread* const thread, int *priority_ptr) { |
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|
3003 if (!UseThreadPriorities) { |
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|
3004 *priority_ptr = java_to_os_priority[NormPriority]; |
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|
3005 return OS_OK; |
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|
3006 } |
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|
3007 pthread_t thr = thread->osthread()->pthread_id(); |
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|
3008 int policy = SCHED_OTHER; |
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|
3009 struct sched_param param; |
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|
3010 int ret = pthread_getschedparam(thr, &policy, ¶m); |
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|
3011 *priority_ptr = param.sched_priority; |
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|
3012 |
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|
3013 return (ret == 0) ? OS_OK : OS_ERR; |
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|
3014 } |
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|
3015 |
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|
3016 // Hint to the underlying OS that a task switch would not be good. |
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|
3017 // Void return because it's a hint and can fail. |
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|
3018 void os::hint_no_preempt() {} |
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|
3019 |
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|
3020 //////////////////////////////////////////////////////////////////////////////// |
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|
3021 // suspend/resume support |
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|
3022 |
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|
3023 // the low-level signal-based suspend/resume support is a remnant from the |
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|
3024 // old VM-suspension that used to be for java-suspension, safepoints etc, |
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|
3025 // within hotspot. Now there is a single use-case for this: |
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3026 // - calling get_thread_pc() on the VMThread by the flat-profiler task |
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|
3027 // that runs in the watcher thread. |
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|
3028 // The remaining code is greatly simplified from the more general suspension |
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|
3029 // code that used to be used. |
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|
3030 // |
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|
3031 // The protocol is quite simple: |
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|
3032 // - suspend: |
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|
3033 // - sends a signal to the target thread |
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|
3034 // - polls the suspend state of the osthread using a yield loop |
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3035 // - target thread signal handler (SR_handler) sets suspend state |
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|
3036 // and blocks in sigsuspend until continued |
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|
3037 // - resume: |
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|
3038 // - sets target osthread state to continue |
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|
3039 // - sends signal to end the sigsuspend loop in the SR_handler |
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|
3040 // |
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3041 // Note that the SR_lock plays no role in this suspend/resume protocol. |
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3042 // |
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|
3043 |
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|
3044 static void resume_clear_context(OSThread *osthread) { |
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|
3045 osthread->set_ucontext(NULL); |
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diff
changeset
|
3046 osthread->set_siginfo(NULL); |
666e6ce3976c
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parents:
diff
changeset
|
3047 } |
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 static void suspend_save_context(OSThread *osthread, siginfo_t* siginfo, ucontext_t* context) { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3050 osthread->set_ucontext(context); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3051 osthread->set_siginfo(siginfo); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3052 } |
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 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3055 // 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
|
3056 // resumed. We have to be careful that only async-safe functions are |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3057 // 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
|
3058 // should be avoided.) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3059 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3060 // 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
|
3061 // interface point of view, but sigwait() prevents the signal hander |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3062 // 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
|
3063 // 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
|
3064 // mutex granting granting signal. |
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 // 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
|
3067 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3068 static void SR_handler(int sig, siginfo_t* siginfo, ucontext_t* context) { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3069 // Save and restore errno to avoid confusing native code with EINTR |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3070 // after sigsuspend. |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3071 int old_errno = errno; |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3072 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3073 Thread* thread = Thread::current(); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3074 OSThread* osthread = thread->osthread(); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3075 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
|
3076 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3077 os::SuspendResume::State current = osthread->sr.state(); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3078 if (current == os::SuspendResume::SR_SUSPEND_REQUEST) { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3079 suspend_save_context(osthread, siginfo, context); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3080 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3081 // 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
|
3082 os::SuspendResume::State state = osthread->sr.suspended(); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3083 if (state == os::SuspendResume::SR_SUSPENDED) { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3084 sigset_t suspend_set; // signals for sigsuspend() |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3085 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3086 // 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
|
3087 pthread_sigmask(SIG_BLOCK, NULL, &suspend_set); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3088 sigdelset(&suspend_set, SR_signum); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3089 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3090 // wait here until we are resumed |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3091 while (1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3092 sigsuspend(&suspend_set); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3093 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3094 os::SuspendResume::State result = osthread->sr.running(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3095 if (result == os::SuspendResume::SR_RUNNING) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3096 break; |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3099 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3100 } else if (state == os::SuspendResume::SR_RUNNING) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3101 // request was cancelled, continue |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3102 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3103 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3104 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3105 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3106 resume_clear_context(osthread); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3107 } else if (current == os::SuspendResume::SR_RUNNING) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3108 // request was cancelled, continue |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3109 } else if (current == os::SuspendResume::SR_WAKEUP_REQUEST) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3110 // ignore |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3111 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3112 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3113 } |
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 errno = old_errno; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3116 } |
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 static int SR_initialize() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3120 struct sigaction act; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3121 char *s; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3122 // Get signal number to use for suspend/resume |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3123 if ((s = ::getenv("_JAVA_SR_SIGNUM")) != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3124 int sig = ::strtol(s, 0, 10); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3125 if (sig > 0 || sig < NSIG) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3126 SR_signum = sig; |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3129 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3130 assert(SR_signum > SIGSEGV && SR_signum > SIGBUS, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3131 "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
|
3132 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3133 sigemptyset(&SR_sigset); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3134 sigaddset(&SR_sigset, SR_signum); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3135 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3136 // Set up signal handler for suspend/resume. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3137 act.sa_flags = SA_RESTART|SA_SIGINFO; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3138 act.sa_handler = (void (*)(int)) SR_handler; |
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 // SR_signum is blocked by default. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3141 // 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
|
3142 // supported Linux platforms). Note that LinuxThreads need to block |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3143 // 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
|
3144 // 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
|
3145 pthread_sigmask(SIG_BLOCK, NULL, &act.sa_mask); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3146 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3147 if (sigaction(SR_signum, &act, 0) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3148 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3149 } |
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 // Save signal flag |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3152 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
|
3153 return 0; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3156 static int SR_finalize() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3157 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3158 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3159 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3160 static int sr_notify(OSThread* osthread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3161 int status = pthread_kill(osthread->pthread_id(), SR_signum); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3162 assert_status(status == 0, status, "pthread_kill"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3163 return status; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3164 } |
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 // "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
|
3167 // 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
|
3168 // 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
|
3169 static const int RANDOMLY_LARGE_INTEGER = 1000000; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3170 static const int RANDOMLY_LARGE_INTEGER2 = 100; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3171 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3172 // 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
|
3173 // but this seems the normal response to library errors |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3174 static bool do_suspend(OSThread* osthread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3175 assert(osthread->sr.is_running(), "thread should be running"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3176 // mark as suspended and send signal |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3177 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3178 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
|
3179 // failed to switch, state wasn't running? |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3180 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3181 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3182 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3183 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3184 if (sr_notify(osthread) != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3185 // try to cancel, switch to running |
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 os::SuspendResume::State result = osthread->sr.cancel_suspend(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3188 if (result == os::SuspendResume::SR_RUNNING) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3189 // cancelled |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3190 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3191 } else if (result == os::SuspendResume::SR_SUSPENDED) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3192 // somehow managed to suspend |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3193 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3194 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3195 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3196 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3197 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3198 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3199 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3200 // 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
|
3201 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3202 for (int n = 0; !osthread->sr.is_suspended(); n++) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3203 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
|
3204 os::yield_all(i); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3205 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3206 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3207 // timeout, try to cancel the request |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3208 if (n >= RANDOMLY_LARGE_INTEGER) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3209 os::SuspendResume::State cancelled = osthread->sr.cancel_suspend(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3210 if (cancelled == os::SuspendResume::SR_RUNNING) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3211 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3212 } else if (cancelled == os::SuspendResume::SR_SUSPENDED) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3213 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3214 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3215 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3216 return false; |
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 } |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3221 guarantee(osthread->sr.is_suspended(), "Must be suspended"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3222 return true; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3225 static void do_resume(OSThread* osthread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3226 //assert(osthread->sr.is_suspended(), "thread should be suspended"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3227 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3228 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
|
3229 // failed to switch to WAKEUP_REQUEST |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3230 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3231 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3232 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3233 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3234 while (!osthread->sr.is_running()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3235 if (sr_notify(osthread) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3236 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
|
3237 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
|
3238 os::yield_all(i); |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3241 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3242 ShouldNotReachHere(); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3246 guarantee(osthread->sr.is_running(), "Must be running!"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3247 } |
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 //////////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3250 // interrupt support |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3251 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3252 void os::interrupt(Thread* thread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3253 assert(Thread::current() == thread || Threads_lock->owned_by_self(), |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3254 "possibility of dangling Thread pointer"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3255 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3256 OSThread* osthread = thread->osthread(); |
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 if (!osthread->interrupted()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3259 osthread->set_interrupted(true); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3260 // 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
|
3261 // 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
|
3262 // 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
|
3263 OrderAccess::fence(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3264 ParkEvent * const slp = thread->_SleepEvent; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3265 if (slp != NULL) slp->unpark(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3266 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3267 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3268 // 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
|
3269 if (thread->is_Java_thread()) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3270 ((JavaThread*)thread)->parker()->unpark(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3271 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3272 ParkEvent * ev = thread->_ParkEvent; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3273 if (ev != NULL) ev->unpark(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3274 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3275 } |
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 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3278 assert(Thread::current() == thread || Threads_lock->owned_by_self(), |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3279 "possibility of dangling Thread pointer"); |
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 OSThread* osthread = thread->osthread(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3282 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3283 bool interrupted = osthread->interrupted(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3284 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3285 if (interrupted && clear_interrupted) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3286 osthread->set_interrupted(false); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3287 // consider thread->_SleepEvent->reset() ... optional optimization |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3290 return interrupted; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3293 /////////////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3294 // signal handling (except suspend/resume) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3295 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3296 // 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
|
3297 // 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
|
3298 // routine, and if it returns true (non-zero), then the signal handler must |
666e6ce3976c
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|
3299 // return immediately. If the flag "abort_if_unrecognized" is true, then this |
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|
3300 // routine will never retun false (zero), but instead will execute a VM panic |
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|
3301 // routine kill the process. |
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|
3302 // |
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|
3303 // If this routine returns false, it is OK to call it again. This allows |
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|
3304 // the user-defined signal handler to perform checks either before or after |
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diff
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|
3305 // the VM performs its own checks. Naturally, the user code would be making |
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diff
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|
3306 // a serious error if it tried to handle an exception (such as a null check |
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diff
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|
3307 // or breakpoint) that the VM was generating for its own correct operation. |
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|
3308 // |
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|
3309 // This routine may recognize any of the following kinds of signals: |
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3310 // SIGBUS, SIGSEGV, SIGILL, SIGFPE, SIGQUIT, SIGPIPE, SIGXFSZ, SIGUSR1. |
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|
3311 // It should be consulted by handlers for any of those signals. |
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|
3312 // |
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|
3313 // The caller of this routine must pass in the three arguments supplied |
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|
3314 // to the function referred to in the "sa_sigaction" (not the "sa_handler") |
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|
3315 // field of the structure passed to sigaction(). This routine assumes that |
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|
3316 // the sa_flags field passed to sigaction() includes SA_SIGINFO and SA_RESTART. |
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|
3317 // |
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|
3318 // Note that the VM will print warnings if it detects conflicting signal |
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|
3319 // handlers, unless invoked with the option "-XX:+AllowUserSignalHandlers". |
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|
3320 // |
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|
3321 extern "C" JNIEXPORT int |
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|
3322 JVM_handle_aix_signal(int signo, siginfo_t* siginfo, void* ucontext, int abort_if_unrecognized); |
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|
3323 |
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|
3324 // Set thread signal mask (for some reason on AIX sigthreadmask() seems |
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|
3325 // to be the thing to call; documentation is not terribly clear about whether |
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3326 // pthread_sigmask also works, and if it does, whether it does the same. |
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|
3327 bool set_thread_signal_mask(int how, const sigset_t* set, sigset_t* oset) { |
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3328 const int rc = ::pthread_sigmask(how, set, oset); |
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3329 // return value semantics differ slightly for error case: |
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|
3330 // pthread_sigmask returns error number, sigthreadmask -1 and sets global errno |
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|
3331 // (so, pthread_sigmask is more theadsafe for error handling) |
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|
3332 // But success is always 0. |
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|
3333 return rc == 0 ? true : false; |
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|
3334 } |
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|
3335 |
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|
3336 // Function to unblock all signals which are, according |
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|
3337 // to POSIX, typical program error signals. If they happen while being blocked, |
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|
3338 // they typically will bring down the process immediately. |
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|
3339 bool unblock_program_error_signals() { |
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|
3340 sigset_t set; |
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|
3341 ::sigemptyset(&set); |
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|
3342 ::sigaddset(&set, SIGILL); |
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|
3343 ::sigaddset(&set, SIGBUS); |
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|
3344 ::sigaddset(&set, SIGFPE); |
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|
3345 ::sigaddset(&set, SIGSEGV); |
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|
3346 return set_thread_signal_mask(SIG_UNBLOCK, &set, NULL); |
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|
3347 } |
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|
3348 |
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|
3349 // Renamed from 'signalHandler' to avoid collision with other shared libs. |
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|
3350 void javaSignalHandler(int sig, siginfo_t* info, void* uc) { |
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|
3351 assert(info != NULL && uc != NULL, "it must be old kernel"); |
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|
3352 |
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diff
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|
3353 // Never leave program error signals blocked; |
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|
3354 // on all our platforms they would bring down the process immediately when |
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parents:
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|
3355 // getting raised while being blocked. |
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|
3356 unblock_program_error_signals(); |
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|
3357 |
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|
3358 JVM_handle_aix_signal(sig, info, uc, true); |
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diff
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|
3359 } |
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|
3360 |
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diff
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|
3361 |
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diff
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|
3362 // This boolean allows users to forward their own non-matching signals |
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3363 // to JVM_handle_aix_signal, harmlessly. |
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|
3364 bool os::Aix::signal_handlers_are_installed = false; |
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|
3365 |
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|
3366 // For signal-chaining |
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diff
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|
3367 struct sigaction os::Aix::sigact[MAXSIGNUM]; |
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|
3368 unsigned int os::Aix::sigs = 0; |
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|
3369 bool os::Aix::libjsig_is_loaded = false; |
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|
3370 typedef struct sigaction *(*get_signal_t)(int); |
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|
3371 get_signal_t os::Aix::get_signal_action = NULL; |
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|
3372 |
666e6ce3976c
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|
3373 struct sigaction* os::Aix::get_chained_signal_action(int sig) { |
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|
3374 struct sigaction *actp = NULL; |
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|
3375 |
666e6ce3976c
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|
3376 if (libjsig_is_loaded) { |
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diff
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|
3377 // Retrieve the old signal handler from libjsig |
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diff
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|
3378 actp = (*get_signal_action)(sig); |
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diff
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|
3379 } |
666e6ce3976c
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|
3380 if (actp == NULL) { |
666e6ce3976c
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diff
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|
3381 // Retrieve the preinstalled signal handler from jvm |
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diff
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|
3382 actp = get_preinstalled_handler(sig); |
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diff
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|
3383 } |
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diff
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|
3384 |
666e6ce3976c
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diff
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|
3385 return actp; |
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diff
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|
3386 } |
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|
3387 |
666e6ce3976c
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|
3388 static bool call_chained_handler(struct sigaction *actp, int sig, |
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|
3389 siginfo_t *siginfo, void *context) { |
14451 | 3390 // Call the old signal handler |
3391 if (actp->sa_handler == SIG_DFL) { | |
3392 // It's more reasonable to let jvm treat it as an unexpected exception | |
3393 // instead of taking the default action. | |
3394 return false; | |
3395 } else if (actp->sa_handler != SIG_IGN) { | |
3396 if ((actp->sa_flags & SA_NODEFER) == 0) { | |
3397 // automaticlly block the signal | |
3398 sigaddset(&(actp->sa_mask), sig); | |
3399 } | |
3400 | |
3401 sa_handler_t hand = NULL; | |
3402 sa_sigaction_t sa = NULL; | |
3403 bool siginfo_flag_set = (actp->sa_flags & SA_SIGINFO) != 0; | |
3404 // retrieve the chained handler | |
3405 if (siginfo_flag_set) { | |
3406 sa = actp->sa_sigaction; | |
3407 } else { | |
3408 hand = actp->sa_handler; | |
3409 } | |
3410 | |
3411 if ((actp->sa_flags & SA_RESETHAND) != 0) { | |
3412 actp->sa_handler = SIG_DFL; | |
3413 } | |
3414 | |
3415 // try to honor the signal mask | |
3416 sigset_t oset; | |
3417 pthread_sigmask(SIG_SETMASK, &(actp->sa_mask), &oset); | |
3418 | |
3419 // call into the chained handler | |
3420 if (siginfo_flag_set) { | |
3421 (*sa)(sig, siginfo, context); | |
3422 } else { | |
3423 (*hand)(sig); | |
3424 } | |
3425 | |
3426 // restore the signal mask | |
3427 pthread_sigmask(SIG_SETMASK, &oset, 0); | |
3428 } | |
3429 // Tell jvm's signal handler the signal is taken care of. | |
14415
666e6ce3976c
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|
3430 return true; |
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|
3431 } |
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|
3432 |
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|
3433 bool os::Aix::chained_handler(int sig, siginfo_t* siginfo, void* context) { |
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|
3434 bool chained = false; |
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|
3435 // signal-chaining |
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|
3436 if (UseSignalChaining) { |
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|
3437 struct sigaction *actp = get_chained_signal_action(sig); |
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|
3438 if (actp != NULL) { |
666e6ce3976c
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|
3439 chained = call_chained_handler(actp, sig, siginfo, context); |
666e6ce3976c
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|
3440 } |
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|
3441 } |
666e6ce3976c
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|
3442 return chained; |
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|
3443 } |
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|
3444 |
666e6ce3976c
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|
3445 struct sigaction* os::Aix::get_preinstalled_handler(int sig) { |
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|
3446 if ((((unsigned int)1 << sig) & sigs) != 0) { |
666e6ce3976c
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|
3447 return &sigact[sig]; |
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|
3448 } |
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|
3449 return NULL; |
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|
3450 } |
666e6ce3976c
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|
3451 |
666e6ce3976c
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diff
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|
3452 void os::Aix::save_preinstalled_handler(int sig, struct sigaction& oldAct) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
3453 assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range"); |
666e6ce3976c
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diff
changeset
|
3454 sigact[sig] = oldAct; |
666e6ce3976c
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diff
changeset
|
3455 sigs |= (unsigned int)1 << sig; |
666e6ce3976c
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diff
changeset
|
3456 } |
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parents:
diff
changeset
|
3457 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
3458 // for diagnostic |
666e6ce3976c
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parents:
diff
changeset
|
3459 int os::Aix::sigflags[MAXSIGNUM]; |
666e6ce3976c
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parents:
diff
changeset
|
3460 |
666e6ce3976c
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parents:
diff
changeset
|
3461 int os::Aix::get_our_sigflags(int sig) { |
666e6ce3976c
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diff
changeset
|
3462 assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range"); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3463 return sigflags[sig]; |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3464 } |
666e6ce3976c
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parents:
diff
changeset
|
3465 |
666e6ce3976c
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parents:
diff
changeset
|
3466 void os::Aix::set_our_sigflags(int sig, int flags) { |
666e6ce3976c
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simonis
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diff
changeset
|
3467 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
|
3468 sigflags[sig] = flags; |
666e6ce3976c
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parents:
diff
changeset
|
3469 } |
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parents:
diff
changeset
|
3470 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3471 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
|
3472 // Check for overwrite. |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3473 struct sigaction oldAct; |
666e6ce3976c
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parents:
diff
changeset
|
3474 sigaction(sig, (struct sigaction*)NULL, &oldAct); |
666e6ce3976c
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diff
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|
3475 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3476 void* oldhand = oldAct.sa_sigaction |
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diff
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|
3477 ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction) |
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diff
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|
3478 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler); |
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diff
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|
3479 // Renamed 'signalHandler' to avoid collision with other shared libs. |
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diff
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|
3480 if (oldhand != CAST_FROM_FN_PTR(void*, SIG_DFL) && |
666e6ce3976c
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diff
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|
3481 oldhand != CAST_FROM_FN_PTR(void*, SIG_IGN) && |
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diff
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|
3482 oldhand != CAST_FROM_FN_PTR(void*, (sa_sigaction_t)javaSignalHandler)) { |
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diff
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|
3483 if (AllowUserSignalHandlers || !set_installed) { |
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diff
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|
3484 // Do not overwrite; user takes responsibility to forward to us. |
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diff
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|
3485 return; |
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parents:
diff
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|
3486 } else if (UseSignalChaining) { |
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diff
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|
3487 // save the old handler in jvm |
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diff
changeset
|
3488 save_preinstalled_handler(sig, oldAct); |
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diff
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|
3489 // libjsig also interposes the sigaction() call below and saves the |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3490 // old sigaction on it own. |
666e6ce3976c
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diff
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|
3491 } else { |
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diff
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|
3492 fatal(err_msg("Encountered unexpected pre-existing sigaction handler " |
666e6ce3976c
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simonis
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diff
changeset
|
3493 "%#lx for signal %d.", (long)oldhand, sig)); |
666e6ce3976c
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diff
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|
3494 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3495 } |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3496 |
666e6ce3976c
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parents:
diff
changeset
|
3497 struct sigaction sigAct; |
666e6ce3976c
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parents:
diff
changeset
|
3498 sigfillset(&(sigAct.sa_mask)); |
666e6ce3976c
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diff
changeset
|
3499 if (!set_installed) { |
666e6ce3976c
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parents:
diff
changeset
|
3500 sigAct.sa_handler = SIG_DFL; |
666e6ce3976c
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parents:
diff
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|
3501 sigAct.sa_flags = SA_RESTART; |
666e6ce3976c
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diff
changeset
|
3502 } else { |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3503 // Renamed 'signalHandler' to avoid collision with other shared libs. |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3504 sigAct.sa_sigaction = javaSignalHandler; |
666e6ce3976c
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parents:
diff
changeset
|
3505 sigAct.sa_flags = SA_SIGINFO|SA_RESTART; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
3506 } |
666e6ce3976c
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parents:
diff
changeset
|
3507 // Save flags, which are set by ours |
666e6ce3976c
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diff
changeset
|
3508 assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3509 sigflags[sig] = sigAct.sa_flags; |
666e6ce3976c
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diff
changeset
|
3510 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3511 int ret = sigaction(sig, &sigAct, &oldAct); |
666e6ce3976c
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parents:
diff
changeset
|
3512 assert(ret == 0, "check"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
3513 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3514 void* oldhand2 = oldAct.sa_sigaction |
666e6ce3976c
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parents:
diff
changeset
|
3515 ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3516 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3517 assert(oldhand2 == oldhand, "no concurrent signal handler installation"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3518 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3519 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3520 // install signal handlers for signals that HotSpot needs to |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3521 // handle in order to support Java-level exception handling. |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3522 void os::Aix::install_signal_handlers() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3523 if (!signal_handlers_are_installed) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
3524 signal_handlers_are_installed = true; |
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 // signal-chaining |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3527 typedef void (*signal_setting_t)(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3528 signal_setting_t begin_signal_setting = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3529 signal_setting_t end_signal_setting = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3530 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
|
3531 dlsym(RTLD_DEFAULT, "JVM_begin_signal_setting")); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3532 if (begin_signal_setting != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3533 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
|
3534 dlsym(RTLD_DEFAULT, "JVM_end_signal_setting")); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3535 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
|
3536 dlsym(RTLD_DEFAULT, "JVM_get_signal_action")); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3537 libjsig_is_loaded = true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3538 assert(UseSignalChaining, "should enable signal-chaining"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3539 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3540 if (libjsig_is_loaded) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3541 // Tell libjsig jvm is setting signal handlers |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3542 (*begin_signal_setting)(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3543 } |
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 set_signal_handler(SIGSEGV, true); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3546 set_signal_handler(SIGPIPE, true); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3547 set_signal_handler(SIGBUS, true); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3548 set_signal_handler(SIGILL, true); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3549 set_signal_handler(SIGFPE, true); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3550 set_signal_handler(SIGTRAP, true); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3551 set_signal_handler(SIGXFSZ, true); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3552 set_signal_handler(SIGDANGER, true); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3553 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3554 if (libjsig_is_loaded) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3555 // Tell libjsig jvm finishes setting signal handlers |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3556 (*end_signal_setting)(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3557 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3558 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3559 // 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
|
3560 // and if UserSignalHandler is installed all bets are off. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3561 // 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
|
3562 if (CheckJNICalls) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3563 if (libjsig_is_loaded) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3564 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
|
3565 check_signals = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3566 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3567 if (AllowUserSignalHandlers) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3568 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
|
3569 check_signals = false; |
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 // need to initialize check_signal_done |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3572 ::sigemptyset(&check_signal_done); |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3576 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3577 static const char* get_signal_handler_name(address handler, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3578 char* buf, int buflen) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3579 int offset; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3580 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
|
3581 if (found) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3582 // skip directory names |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3583 const char *p1, *p2; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3584 p1 = buf; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3585 size_t len = strlen(os::file_separator()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3586 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
|
3587 // 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
|
3588 // 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
|
3589 // terribly informative. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3590 // Will fix that. For now, omit the offset. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3591 jio_snprintf(buf, buflen, "%s", p1); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3592 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3593 jio_snprintf(buf, buflen, PTR_FORMAT, handler); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3594 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3595 return buf; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3596 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3597 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3598 static void print_signal_handler(outputStream* st, int sig, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3599 char* buf, size_t buflen) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3600 struct sigaction sa; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3601 sigaction(sig, NULL, &sa); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3602 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3603 st->print("%s: ", os::exception_name(sig, buf, buflen)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3604 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3605 address handler = (sa.sa_flags & SA_SIGINFO) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3606 ? CAST_FROM_FN_PTR(address, sa.sa_sigaction) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3607 : CAST_FROM_FN_PTR(address, sa.sa_handler); |
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 if (handler == CAST_FROM_FN_PTR(address, SIG_DFL)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3610 st->print("SIG_DFL"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3611 } 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
|
3612 st->print("SIG_IGN"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3613 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3614 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
|
3615 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3616 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3617 // Print readable mask. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3618 st->print(", sa_mask[0]="); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3619 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
|
3620 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3621 address rh = VMError::get_resetted_sighandler(sig); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3622 // May be, handler was resetted by VMError? |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3623 if (rh != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3624 handler = rh; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3625 sa.sa_flags = VMError::get_resetted_sigflags(sig); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3626 } |
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 // Print textual representation of sa_flags. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3629 st->print(", sa_flags="); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3630 os::Posix::print_sa_flags(st, sa.sa_flags); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3631 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3632 // Check: is it our handler? |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3633 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
|
3634 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
|
3635 // It is our signal handler. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3636 // Check for flags, reset system-used one! |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3637 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
|
3638 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
|
3639 os::Aix::get_our_sigflags(sig)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3640 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3641 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3642 st->cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3643 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3644 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3645 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3646 #define DO_SIGNAL_CHECK(sig) \ |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3647 if (!sigismember(&check_signal_done, sig)) \ |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3648 os::Aix::check_signal_handler(sig) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3649 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3650 // 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
|
3651 // under CheckJNI, we can add any periodic checks here |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3652 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3653 void os::run_periodic_checks() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3654 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3655 if (check_signals == false) return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3656 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3657 // SEGV and BUS if overridden could potentially prevent |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3658 // 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
|
3659 // 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
|
3660 // check the following for a good measure: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3661 DO_SIGNAL_CHECK(SIGSEGV); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3662 DO_SIGNAL_CHECK(SIGILL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3663 DO_SIGNAL_CHECK(SIGFPE); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3664 DO_SIGNAL_CHECK(SIGBUS); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3665 DO_SIGNAL_CHECK(SIGPIPE); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3666 DO_SIGNAL_CHECK(SIGXFSZ); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3667 if (UseSIGTRAP) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3668 DO_SIGNAL_CHECK(SIGTRAP); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3669 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3670 DO_SIGNAL_CHECK(SIGDANGER); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3671 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3672 // ReduceSignalUsage allows the user to override these handlers |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3673 // 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
|
3674 if (!ReduceSignalUsage) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3675 DO_SIGNAL_CHECK(SHUTDOWN1_SIGNAL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3676 DO_SIGNAL_CHECK(SHUTDOWN2_SIGNAL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3677 DO_SIGNAL_CHECK(SHUTDOWN3_SIGNAL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3678 DO_SIGNAL_CHECK(BREAK_SIGNAL); |
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 DO_SIGNAL_CHECK(SR_signum); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3682 DO_SIGNAL_CHECK(INTERRUPT_SIGNAL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3683 } |
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 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
|
3686 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3687 static os_sigaction_t os_sigaction = NULL; |
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 void os::Aix::check_signal_handler(int sig) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3690 char buf[O_BUFLEN]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3691 address jvmHandler = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3692 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3693 struct sigaction act; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3694 if (os_sigaction == NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3695 // 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
|
3696 os_sigaction = (os_sigaction_t)dlsym(RTLD_DEFAULT, "sigaction"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3697 if (os_sigaction == NULL) return; |
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 os_sigaction(sig, (struct sigaction*)NULL, &act); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3701 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3702 address thisHandler = (act.sa_flags & SA_SIGINFO) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3703 ? CAST_FROM_FN_PTR(address, act.sa_sigaction) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3704 : CAST_FROM_FN_PTR(address, act.sa_handler); |
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 switch(sig) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3708 case SIGSEGV: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3709 case SIGBUS: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3710 case SIGFPE: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3711 case SIGPIPE: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3712 case SIGILL: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3713 case SIGXFSZ: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3714 // Renamed 'signalHandler' to avoid collision with other shared libs. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3715 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
|
3716 break; |
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 case SHUTDOWN1_SIGNAL: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3719 case SHUTDOWN2_SIGNAL: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3720 case SHUTDOWN3_SIGNAL: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3721 case BREAK_SIGNAL: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3722 jvmHandler = (address)user_handler(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3723 break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3724 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3725 case INTERRUPT_SIGNAL: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3726 jvmHandler = CAST_FROM_FN_PTR(address, SIG_DFL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3727 break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3728 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3729 default: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3730 if (sig == SR_signum) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3731 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
|
3732 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3733 return; |
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 break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3736 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3737 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3738 if (thisHandler != jvmHandler) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3739 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
|
3740 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
|
3741 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
|
3742 // No need to check this sig any longer |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3743 sigaddset(&check_signal_done, sig); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3744 } 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
|
3745 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
|
3746 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
|
3747 tty->print_cr(" found:" PTR32_FORMAT, act.sa_flags); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3748 // No need to check this sig any longer |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3749 sigaddset(&check_signal_done, sig); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3752 // Dump all the signal |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3753 if (sigismember(&check_signal_done, sig)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3754 print_signal_handlers(tty, buf, O_BUFLEN); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3758 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
|
3759 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3760 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
|
3761 if (0 < exception_code && exception_code <= SIGRTMAX) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3762 // signal |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3763 if (!signal_name(exception_code, buf, size)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3764 jio_snprintf(buf, size, "SIG%d", exception_code); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3765 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3766 return buf; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3767 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3768 return NULL; |
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 } |
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 // To install functions for atexit system call |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3773 extern "C" { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3774 static void perfMemory_exit_helper() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3775 perfMemory_exit(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3776 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3777 } |
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 // 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
|
3780 void os::init(void) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3781 // 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
|
3782 // (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
|
3783 assert(SHMLBA == ((uint64_t)0x10000000ULL)/*256M*/, "unexpected"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3784 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3785 // 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
|
3786 // the OS level we run on. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3787 os::Aix::initialize_os_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3788 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3789 // Scan environment (SPEC1170 behaviour, etc) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3790 os::Aix::scan_environment(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3791 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3792 // Check which pages are supported by AIX. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3793 os::Aix::query_multipage_support(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3794 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3795 // Next, we need to initialize libo4 and libperfstat libraries. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3796 if (os::Aix::on_pase()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3797 os::Aix::initialize_libo4(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3798 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3799 os::Aix::initialize_libperfstat(); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3802 // Reset the perfstat information provided by ODM. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3803 if (os::Aix::on_aix()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3804 libperfstat::perfstat_reset(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3805 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3806 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3807 // 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
|
3808 // need libperfstat etc. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3809 os::Aix::initialize_system_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3810 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3811 // Initialize large page support. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3812 if (UseLargePages) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3813 os::large_page_init(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3814 if (!UseLargePages) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3815 // initialize os::_page_sizes |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3816 _page_sizes[0] = Aix::page_size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3817 _page_sizes[1] = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3818 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3819 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
|
3820 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3821 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3822 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3823 // initialize os::_page_sizes |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3824 _page_sizes[0] = Aix::page_size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3825 _page_sizes[1] = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3826 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3827 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3828 // debug trace |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3829 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3830 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
|
3831 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
|
3832 fprintf(stderr, "os::_page_sizes = ( "); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3833 for (int i = 0; _page_sizes[i]; i ++) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3834 fprintf(stderr, " %s ", describe_pagesize(_page_sizes[i])); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3835 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3836 fprintf(stderr, ")\n"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3837 } |
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 _initial_pid = getpid(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3840 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3841 clock_tics_per_sec = sysconf(_SC_CLK_TCK); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3842 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3843 init_random(1234567); |
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 ThreadCritical::initialize(); |
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 // Main_thread points to the aboriginal thread. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3848 Aix::_main_thread = pthread_self(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3849 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3850 initial_time_count = os::elapsed_counter(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3851 pthread_mutex_init(&dl_mutex, NULL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3852 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3853 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3854 // 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
|
3855 jint os::init_2(void) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3856 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3857 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3858 fprintf(stderr, "processor count: %d\n", os::_processor_count); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3859 fprintf(stderr, "physical memory: %lu\n", Aix::_physical_memory); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3860 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3861 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3862 // initially build up the loaded dll map |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3863 LoadedLibraries::reload(); |
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 const int page_size = Aix::page_size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3866 const int map_size = page_size; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3867 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3868 address map_address = (address) MAP_FAILED; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3869 const int prot = PROT_READ; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3870 const int flags = MAP_PRIVATE|MAP_ANONYMOUS; |
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 // use optimized addresses for the polling page, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3873 // 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
|
3874 if (OptimizePollingPageLocation) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3875 // architecture-specific list of address wishes: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3876 address address_wishes[] = { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3877 // 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
|
3878 // 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
|
3879 // 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
|
3880 // with a single ppc_lis instruction. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3881 (address) 0x30000000, (address) 0x31000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3882 (address) 0x32000000, (address) 0x33000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3883 (address) 0x40000000, (address) 0x41000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3884 (address) 0x42000000, (address) 0x43000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3885 (address) 0x50000000, (address) 0x51000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3886 (address) 0x52000000, (address) 0x53000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3887 (address) 0x60000000, (address) 0x61000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3888 (address) 0x62000000, (address) 0x63000000 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3889 }; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3890 int address_wishes_length = sizeof(address_wishes)/sizeof(address); |
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 // iterate over the list of address wishes: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3893 for (int i=0; i<address_wishes_length; i++) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3894 // try to map with current address wish. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3895 // 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
|
3896 // fail if the address is already mapped. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3897 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
|
3898 map_size, prot, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3899 flags | MAP_FIXED, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3900 -1, 0); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3901 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3902 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
|
3903 address_wishes[i], map_address + (ssize_t)page_size); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3904 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3905 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3906 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
|
3907 // 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
|
3908 break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3909 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3910 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3911 if (map_address != (address) MAP_FAILED) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3912 // 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
|
3913 ::munmap(map_address, map_size); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3914 map_address = (address) MAP_FAILED; |
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 // map failed, continue loop. |
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 } // end OptimizePollingPageLocation |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3919 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3920 if (map_address == (address) MAP_FAILED) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3921 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
|
3922 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3923 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
|
3924 os::set_polling_page(map_address); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3925 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3926 if (!UseMembar) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3927 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
|
3928 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
|
3929 os::set_memory_serialize_page(mem_serialize_page); |
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 #ifndef PRODUCT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3932 if (Verbose && PrintMiscellaneous) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3933 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
|
3934 #endif |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3935 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3936 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3937 // 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
|
3938 if (SR_initialize() != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3939 perror("SR_initialize failed"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3940 return JNI_ERR; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3941 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3942 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3943 Aix::signal_sets_init(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3944 Aix::install_signal_handlers(); |
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 // 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
|
3947 // the java system classes, including StackOverflowError - depends on page |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3948 // 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
|
3949 // 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
|
3950 // class initialization depending on 32 or 64 bit VM. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3951 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
|
3952 (size_t)(StackYellowPages+StackRedPages+StackShadowPages + |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3953 2*BytesPerWord COMPILER2_PRESENT(+1)) * Aix::page_size()); |
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 size_t threadStackSizeInBytes = ThreadStackSize * K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3956 if (threadStackSizeInBytes != 0 && |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3957 threadStackSizeInBytes < os::Aix::min_stack_allowed) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3958 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
|
3959 "Specify at least %dk", |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3960 os::Aix::min_stack_allowed / K); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3961 return JNI_ERR; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3962 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3963 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3964 // 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
|
3965 // the yellow/red zones can be guarded. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3966 // 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
|
3967 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
|
3968 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3969 Aix::libpthread_init(); |
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 if (MaxFDLimit) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3972 // 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
|
3973 // if getrlimit/setrlimit fails but continue regardless. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3974 struct rlimit nbr_files; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3975 int status = getrlimit(RLIMIT_NOFILE, &nbr_files); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3976 if (status != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3977 if (PrintMiscellaneous && (Verbose || WizardMode)) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3978 perror("os::init_2 getrlimit failed"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3979 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3980 nbr_files.rlim_cur = nbr_files.rlim_max; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3981 status = setrlimit(RLIMIT_NOFILE, &nbr_files); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3982 if (status != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3983 if (PrintMiscellaneous && (Verbose || WizardMode)) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3984 perror("os::init_2 setrlimit failed"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3985 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3986 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3987 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3988 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3989 if (PerfAllowAtExitRegistration) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3990 // only register atexit functions if PerfAllowAtExitRegistration is set. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3991 // 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
|
3992 // 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
|
3993 // call DestroyJavaVM() to assure that VM resources are released. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3994 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3995 // 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
|
3996 // 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
|
3997 // VM_Exit VMOperation's doit method. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3998 if (atexit(perfMemory_exit_helper) != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3999 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4000 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4001 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4002 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4003 return JNI_OK; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4004 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4005 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4006 // this is called at the end of vm_initialization |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4007 void os::init_3(void) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4008 return; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4011 // Mark the polling page as unreadable |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4012 void os::make_polling_page_unreadable(void) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4013 if (!guard_memory((char*)_polling_page, Aix::page_size())) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4014 fatal("Could not disable polling page"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4015 } |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4018 // Mark the polling page as readable |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4019 void os::make_polling_page_readable(void) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4020 // Changed according to os_linux.cpp. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4021 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
|
4022 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
|
4023 } |
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 int os::active_processor_count() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4027 int online_cpus = ::sysconf(_SC_NPROCESSORS_ONLN); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4028 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
|
4029 return online_cpus; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4030 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4031 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4032 void os::set_native_thread_name(const char *name) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4033 // Not yet implemented. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4034 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4035 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4036 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4037 bool os::distribute_processes(uint length, uint* distribution) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4038 // Not yet implemented. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4039 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4040 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4041 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4042 bool os::bind_to_processor(uint processor_id) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4043 // Not yet implemented. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4044 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4045 } |
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 void os::SuspendedThreadTask::internal_do_task() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4048 if (do_suspend(_thread->osthread())) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4049 SuspendedThreadTaskContext context(_thread, _thread->osthread()->ucontext()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4050 do_task(context); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4051 do_resume(_thread->osthread()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4052 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4053 } |
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 class PcFetcher : public os::SuspendedThreadTask { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4056 public: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4057 PcFetcher(Thread* thread) : os::SuspendedThreadTask(thread) {} |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4058 ExtendedPC result(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4059 protected: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4060 void do_task(const os::SuspendedThreadTaskContext& context); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4061 private: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4062 ExtendedPC _epc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4063 }; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4064 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4065 ExtendedPC PcFetcher::result() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4066 guarantee(is_done(), "task is not done yet."); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4067 return _epc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4068 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4069 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4070 void PcFetcher::do_task(const os::SuspendedThreadTaskContext& context) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4071 Thread* thread = context.thread(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4072 OSThread* osthread = thread->osthread(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4073 if (osthread->ucontext() != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4074 _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
|
4075 } else { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4076 // NULL context is unexpected, double-check this is the VMThread. |
666e6ce3976c
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simonis
parents:
diff
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|
4077 guarantee(thread->is_VM_thread(), "can only be called for VMThread"); |
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simonis
parents:
diff
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|
4078 } |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4079 } |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4080 |
666e6ce3976c
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parents:
diff
changeset
|
4081 // 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
|
4082 // resuming the target. Used by the flat-profiler only |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4083 ExtendedPC os::get_thread_pc(Thread* thread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4084 // Make sure that it is called by the watcher for the VMThread. |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4085 assert(Thread::current()->is_Watcher_thread(), "Must be watcher"); |
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diff
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|
4086 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
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|
4087 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4088 PcFetcher fetcher(thread); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4089 fetcher.run(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4090 return fetcher.result(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4091 } |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4092 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4093 // Not neede on Aix. |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4094 // 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
|
4095 // } |
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simonis
parents:
diff
changeset
|
4096 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4097 //////////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4098 // debug support |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4099 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4100 static address same_page(address x, address y) { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4101 intptr_t page_bits = -os::vm_page_size(); |
666e6ce3976c
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parents:
diff
changeset
|
4102 if ((intptr_t(x) & page_bits) == (intptr_t(y) & page_bits)) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4103 return x; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4104 else if (x > y) |
666e6ce3976c
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parents:
diff
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|
4105 return (address)(intptr_t(y) | ~page_bits) + 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4106 else |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4107 return (address)(intptr_t(y) & page_bits); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4110 bool os::find(address addr, outputStream* st) { |
14451 | 4111 |
4112 st->print(PTR_FORMAT ": ", addr); | |
4113 | |
4114 const LoadedLibraryModule* lib = LoadedLibraries::find_for_text_address(addr); | |
4115 if (lib) { | |
4116 lib->print(st); | |
4117 return true; | |
4118 } else { | |
4119 lib = LoadedLibraries::find_for_data_address(addr); | |
4120 if (lib) { | |
4121 lib->print(st); | |
4122 return true; | |
4123 } else { | |
4124 st->print_cr("(outside any module)"); | |
4125 } | |
4126 } | |
4127 | |
14415
666e6ce3976c
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parents:
diff
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|
4128 return false; |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4129 } |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4130 |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4131 //////////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
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parents:
diff
changeset
|
4132 // misc |
666e6ce3976c
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simonis
parents:
diff
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|
4133 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4134 // 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
|
4135 // 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
|
4136 // on, e.g., Win32. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4137 void |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4138 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
|
4139 JavaCallArguments* args, Thread* thread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4140 f(value, method, args, thread); |
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 void os::print_statistics() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4144 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4145 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4146 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
|
4147 int i; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4148 fdStream err(defaultStream::error_fd()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4149 for (i = 0; i < 78; i++) err.print_raw("="); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4150 err.cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4151 err.print_raw_cr(title); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4152 for (i = 0; i < 78; i++) err.print_raw("-"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4153 err.cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4154 err.print_raw_cr(message); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4155 for (i = 0; i < 78; i++) err.print_raw("="); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4156 err.cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4157 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4158 char buf[16]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4159 // 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
|
4160 while (::read(0, buf, sizeof(buf)) <= 0) { ::sleep(100); } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4161 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4162 return buf[0] == 'y' || buf[0] == 'Y'; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4163 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4164 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4165 int os::stat(const char *path, struct stat *sbuf) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4166 char pathbuf[MAX_PATH]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4167 if (strlen(path) > MAX_PATH - 1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4168 errno = ENAMETOOLONG; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4169 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4170 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4171 os::native_path(strcpy(pathbuf, path)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4172 return ::stat(pathbuf, sbuf); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4173 } |
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 bool os::check_heap(bool force) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4176 return true; |
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 // 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
|
4180 // return ::vsnprintf(buf, count, format, args); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4181 // } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4182 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4183 // Is a (classpath) directory empty? |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4184 bool os::dir_is_empty(const char* path) { |
14451 | 4185 DIR *dir = NULL; |
4186 struct dirent *ptr; | |
4187 | |
4188 dir = opendir(path); | |
4189 if (dir == NULL) return true; | |
4190 | |
4191 /* Scan the directory */ | |
4192 bool result = true; | |
4193 char buf[sizeof(struct dirent) + MAX_PATH]; | |
4194 while (result && (ptr = ::readdir(dir)) != NULL) { | |
4195 if (strcmp(ptr->d_name, ".") != 0 && strcmp(ptr->d_name, "..") != 0) { | |
4196 result = false; | |
4197 } | |
4198 } | |
4199 closedir(dir); | |
4200 return result; | |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
4201 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
4202 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4203 // This code originates from JDK's sysOpen and open64_w |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
4204 // from src/solaris/hpi/src/system_md.c |
666e6ce3976c
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diff
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|
4205 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4206 #ifndef O_DELETE |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4207 #define O_DELETE 0x10000 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
4208 #endif |
666e6ce3976c
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diff
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|
4209 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4210 // Open a file. Unlink the file immediately after open returns |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
4211 // if the specified oflag has the O_DELETE flag set. |
666e6ce3976c
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diff
changeset
|
4212 // O_DELETE is used only in j2se/src/share/native/java/util/zip/ZipFile.c |
666e6ce3976c
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|
4213 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4214 int os::open(const char *path, int oflag, int mode) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
4215 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4216 if (strlen(path) > MAX_PATH - 1) { |
666e6ce3976c
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diff
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|
4217 errno = ENAMETOOLONG; |
666e6ce3976c
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diff
changeset
|
4218 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
4219 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4220 int fd; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4221 int o_delete = (oflag & O_DELETE); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
4222 oflag = oflag & ~O_DELETE; |
666e6ce3976c
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diff
changeset
|
4223 |
666e6ce3976c
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diff
changeset
|
4224 fd = ::open64(path, oflag, mode); |
666e6ce3976c
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diff
changeset
|
4225 if (fd == -1) return -1; |
666e6ce3976c
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diff
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|
4226 |
14451 | 4227 // If the open succeeded, the file might still be a directory. |
14415
666e6ce3976c
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diff
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|
4228 { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4229 struct stat64 buf64; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4230 int ret = ::fstat64(fd, &buf64); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4231 int st_mode = buf64.st_mode; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4232 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4233 if (ret != -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4234 if ((st_mode & S_IFMT) == S_IFDIR) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4235 errno = EISDIR; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4236 ::close(fd); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4237 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4238 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4239 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4240 ::close(fd); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4241 return -1; |
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 // 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
|
4246 // specifically destined for a subprocess should have the |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4247 // 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
|
4248 // 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
|
4249 // 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
|
4250 // UNIXProcess.c), and this in turn might: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4251 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4252 // - 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
|
4253 // descriptors, resulting in mysterious hangs, or |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4254 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4255 // - 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
|
4256 // suffering from bug 1085341. |
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 // (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
|
4259 // design flaw.) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4260 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4261 // See: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4262 // 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
|
4263 // 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
|
4264 // 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
|
4265 #ifdef FD_CLOEXEC |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4266 { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4267 int flags = ::fcntl(fd, F_GETFD); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4268 if (flags != -1) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4269 ::fcntl(fd, F_SETFD, flags | FD_CLOEXEC); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4270 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4271 #endif |
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 if (o_delete != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4274 ::unlink(path); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4275 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4276 return fd; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4277 } |
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 // create binary file, rewriting existing file if required |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4281 int os::create_binary_file(const char* path, bool rewrite_existing) { |
14451 | 4282 int oflags = O_WRONLY | O_CREAT; |
4283 if (!rewrite_existing) { | |
4284 oflags |= O_EXCL; | |
4285 } | |
4286 return ::open64(path, oflags, S_IREAD | S_IWRITE); | |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4287 } |
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 // return current position of file pointer |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4290 jlong os::current_file_offset(int fd) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4291 return (jlong)::lseek64(fd, (off64_t)0, SEEK_CUR); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4292 } |
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 // move file pointer to the specified offset |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4295 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
|
4296 return (jlong)::lseek64(fd, (off64_t)offset, SEEK_SET); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4299 // This code originates from JDK's sysAvailable |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4300 // 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
|
4301 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4302 int os::available(int fd, jlong *bytes) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4303 jlong cur, end; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4304 int mode; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4305 struct stat64 buf64; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4306 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4307 if (::fstat64(fd, &buf64) >= 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4308 mode = buf64.st_mode; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4309 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
|
4310 // 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
|
4311 // 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
|
4312 // blocking, interruptible calls in this file. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4313 int n; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4314 if (::ioctl(fd, FIONREAD, &n) >= 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4315 *bytes = n; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4316 return 1; |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4320 if ((cur = ::lseek64(fd, 0L, SEEK_CUR)) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4321 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4322 } else if ((end = ::lseek64(fd, 0L, SEEK_END)) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4323 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4324 } else if (::lseek64(fd, cur, SEEK_SET) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4325 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4326 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4327 *bytes = end - cur; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4328 return 1; |
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 int os::socket_available(int fd, jint *pbytes) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4332 // Linux doc says EINTR not returned, unlike Solaris |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4333 int ret = ::ioctl(fd, FIONREAD, pbytes); |
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 //%% note ioctl can return 0 when successful, JVM_SocketAvailable |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4336 // 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
|
4337 return (ret < 0) ? 0 : 1; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4340 // Map a block of memory. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4341 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
|
4342 char *addr, size_t bytes, bool read_only, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4343 bool allow_exec) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4344 Unimplemented(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4345 return NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4346 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4347 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4348 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4349 // Remap a block of memory. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4350 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
|
4351 char *addr, size_t bytes, bool read_only, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4352 bool allow_exec) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4353 // same as map_memory() on this OS |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4354 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
|
4355 allow_exec); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4358 // Unmap a block of memory. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4359 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
|
4360 return munmap(addr, bytes) == 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4361 } |
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 // 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
|
4364 // 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
|
4365 // of a thread. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4366 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4367 // 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
|
4368 // the fast estimate available on the platform. |
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 jlong os::current_thread_cpu_time() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4371 // return user + sys since the cost is the same |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4372 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
|
4373 assert(n >= 0, "negative CPU time"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4374 return n; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4375 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4376 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4377 jlong os::thread_cpu_time(Thread* thread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4378 // consistent with what current_thread_cpu_time() returns |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4379 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
|
4380 assert(n >= 0, "negative CPU time"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4381 return n; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4382 } |
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 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
|
4385 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
|
4386 assert(n >= 0, "negative CPU time"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4387 return n; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4388 } |
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 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
|
4391 bool error = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4392 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4393 jlong sys_time = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4394 jlong user_time = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4395 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4396 // reimplemented using getthrds64(). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4397 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4398 // goes like this: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4399 // 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
|
4400 // kernel thread statistics using that id. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4401 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4402 // 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
|
4403 // 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
|
4404 // On AIX, see AIXTHREAD_SCOPE variable. |
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 pthread_t pthtid = thread->osthread()->pthread_id(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4407 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4408 // retrieve kernel thread id for the pthread: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4409 tid64_t tid = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4410 struct __pthrdsinfo pinfo; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4411 // 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
|
4412 // dummy buffers for stuff I dont care for... |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4413 char dummy[1]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4414 int dummy_size = sizeof(dummy); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4415 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
|
4416 dummy, &dummy_size) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4417 tid = pinfo.__pi_tid; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4418 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4419 tty->print_cr("pthread_getthrds_np failed."); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4420 error = true; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4423 // retrieve kernel timing info for that kernel thread |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4424 if (!error) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4425 struct thrdentry64 thrdentry; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4426 if (getthrds64(getpid(), &thrdentry, sizeof(thrdentry), &tid, 1) == 1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4427 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
|
4428 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
|
4429 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4430 tty->print_cr("pthread_getthrds_np failed."); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4431 error = true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4432 } |
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 if (p_sys_time) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4436 *p_sys_time = sys_time; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4437 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4438 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4439 if (p_user_time) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4440 *p_user_time = user_time; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4443 if (error) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4444 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4445 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4446 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4447 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4448 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4449 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4450 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
|
4451 jlong sys_time; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4452 jlong user_time; |
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 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
|
4455 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4456 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4457 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4458 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
|
4459 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4460 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4461 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
|
4462 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
|
4463 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
|
4464 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
|
4465 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
|
4466 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4467 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4468 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4469 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
|
4470 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
|
4471 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
|
4472 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
|
4473 } |
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 bool os::is_thread_cpu_time_supported() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4476 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4477 } |
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 // 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
|
4480 // 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
|
4481 int os::loadavg(double values[], int nelem) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4482 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4483 // Implemented using libperfstat on AIX. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4484 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4485 guarantee(nelem >= 0 && nelem <= 3, "argument error"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4486 guarantee(values, "argument error"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4487 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4488 if (os::Aix::on_pase()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4489 Unimplemented(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4490 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4491 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4492 // AIX: use libperfstat |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4493 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4494 // See also: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4495 // 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
|
4496 // /usr/include/libperfstat.h: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4497 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4498 // Use the already AIX version independent get_cpuinfo. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4499 os::Aix::cpuinfo_t ci; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4500 if (os::Aix::get_cpuinfo(&ci)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4501 for (int i = 0; i < nelem; i++) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4502 values[i] = ci.loadavg[i]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4503 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4504 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4505 return -1; |
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 return nelem; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4508 } |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4511 void os::pause() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4512 char filename[MAX_PATH]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4513 if (PauseAtStartupFile && PauseAtStartupFile[0]) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4514 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4515 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4516 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
|
4517 } |
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 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
|
4520 if (fd != -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4521 struct stat buf; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4522 ::close(fd); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4523 while (::stat(filename, &buf) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4524 (void)::poll(NULL, 0, 100); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4525 } |
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 jio_fprintf(stderr, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4528 "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
|
4529 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4530 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4531 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4532 bool os::Aix::is_primordial_thread() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4533 if (pthread_self() == (pthread_t)1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4534 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4535 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4536 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4537 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4538 } |
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 // 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
|
4541 // one of Aix::on_pase(), Aix::os_version() static |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4542 void os::Aix::initialize_os_info() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4543 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4544 assert(_on_pase == -1 && _os_version == -1, "already called."); |
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 struct utsname uts; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4547 memset(&uts, 0, sizeof(uts)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4548 strcpy(uts.sysname, "?"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4549 if (::uname(&uts) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4550 fprintf(stderr, "uname failed (%d)\n", errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4551 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
|
4552 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4553 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4554 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
|
4555 "node \"%s\" machine \"%s\"\n", |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4556 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
|
4557 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4558 const int major = atoi(uts.version); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4559 assert(major > 0, "invalid OS version"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4560 const int minor = atoi(uts.release); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4561 assert(minor > 0, "invalid OS release"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4562 _os_version = (major << 8) | minor; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4563 if (strcmp(uts.sysname, "OS400") == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4564 Unimplemented(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4565 } else if (strcmp(uts.sysname, "AIX") == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4566 // 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
|
4567 _on_pase = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4568 if (_os_version < 0x0503) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4569 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
|
4570 assert(false, "AIX release too old."); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4571 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4572 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4573 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
|
4574 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4575 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4576 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4577 assert(false, "unknown OS"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4578 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4579 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4580 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4581 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
|
4582 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4583 } // end: os::Aix::initialize_os_info() |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4584 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4585 // 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
|
4586 // 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
|
4587 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4588 // Must run after os::Aix::initialue_os_info(). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4589 void os::Aix::scan_environment() { |
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 char* p; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4592 int rc; |
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 // 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
|
4595 // 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
|
4596 // shared memory cannot be change dynamically, effectivly preventing |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4597 // large pages from working. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4598 // 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
|
4599 // recommendation is (in OSS notes) to switch it off. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4600 p = ::getenv("EXTSHM"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4601 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4602 fprintf(stderr, "EXTSHM=%s.\n", p ? p : "<unset>"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4603 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4604 if (p && strcmp(p, "ON") == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4605 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
|
4606 _extshm = 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4607 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4608 _extshm = 0; |
666e6ce3976c
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|
4609 } |
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|
4610 |
666e6ce3976c
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|
4611 // SPEC1170 behaviour: will change the behaviour of a number of POSIX APIs. |
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|
4612 // Not tested, not supported. |
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diff
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|
4613 // |
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|
4614 // Note that it might be worth the trouble to test and to require it, if only to |
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diff
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|
4615 // get useful return codes for mprotect. |
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|
4616 // |
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|
4617 // Note: Setting XPG_SUS_ENV in the process is too late. Must be set earlier (before |
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|
4618 // exec() ? before loading the libjvm ? ....) |
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|
4619 p = ::getenv("XPG_SUS_ENV"); |
666e6ce3976c
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|
4620 if (Verbose) { |
666e6ce3976c
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simonis
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|
4621 fprintf(stderr, "XPG_SUS_ENV=%s.\n", p ? p : "<unset>"); |
666e6ce3976c
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simonis
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|
4622 } |
666e6ce3976c
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|
4623 if (p && strcmp(p, "ON") == 0) { |
666e6ce3976c
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|
4624 _xpg_sus_mode = 1; |
666e6ce3976c
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|
4625 fprintf(stderr, "Unsupported setting: XPG_SUS_ENV=ON\n"); |
666e6ce3976c
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|
4626 // This is not supported. Worst of all, it changes behaviour of mmap MAP_FIXED to |
666e6ce3976c
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simonis
parents:
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|
4627 // clobber address ranges. If we ever want to support that, we have to do some |
666e6ce3976c
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simonis
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|
4628 // testing first. |
666e6ce3976c
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|
4629 guarantee(false, "XPG_SUS_ENV=ON not supported"); |
666e6ce3976c
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simonis
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diff
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|
4630 } else { |
666e6ce3976c
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|
4631 _xpg_sus_mode = 0; |
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simonis
parents:
diff
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|
4632 } |
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|
4633 |
666e6ce3976c
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parents:
diff
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|
4634 // Switch off AIX internal (pthread) guard pages. This has |
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parents:
diff
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|
4635 // immediate effect for any pthread_create calls which follow. |
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|
4636 p = ::getenv("AIXTHREAD_GUARDPAGES"); |
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|
4637 if (Verbose) { |
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|
4638 fprintf(stderr, "AIXTHREAD_GUARDPAGES=%s.\n", p ? p : "<unset>"); |
666e6ce3976c
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|
4639 fprintf(stderr, "setting AIXTHREAD_GUARDPAGES=0.\n"); |
666e6ce3976c
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|
4640 } |
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|
4641 rc = ::putenv("AIXTHREAD_GUARDPAGES=0"); |
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parents:
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|
4642 guarantee(rc == 0, ""); |
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parents:
diff
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|
4643 |
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diff
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|
4644 } // end: os::Aix::scan_environment() |
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|
4645 |
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|
4646 // PASE: initialize the libo4 library (AS400 PASE porting library). |
666e6ce3976c
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|
4647 void os::Aix::initialize_libo4() { |
666e6ce3976c
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parents:
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|
4648 Unimplemented(); |
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diff
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|
4649 } |
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|
4650 |
666e6ce3976c
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parents:
diff
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|
4651 // AIX: initialize the libperfstat library (we load this dynamically |
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diff
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|
4652 // because it is only available on AIX. |
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|
4653 void os::Aix::initialize_libperfstat() { |
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|
4654 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
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|
4655 assert(os::Aix::on_aix(), "AIX only"); |
666e6ce3976c
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simonis
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diff
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|
4656 |
666e6ce3976c
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parents:
diff
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|
4657 if (!libperfstat::init()) { |
666e6ce3976c
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parents:
diff
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|
4658 fprintf(stderr, "libperfstat initialization failed.\n"); |
666e6ce3976c
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diff
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|
4659 assert(false, "libperfstat initialization failed"); |
666e6ce3976c
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simonis
parents:
diff
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|
4660 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
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|
4661 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4662 fprintf(stderr, "libperfstat initialized.\n"); |
666e6ce3976c
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simonis
parents:
diff
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|
4663 } |
666e6ce3976c
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simonis
parents:
diff
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|
4664 } |
666e6ce3976c
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parents:
diff
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|
4665 } // end: os::Aix::initialize_libperfstat |
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diff
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|
4666 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
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|
4667 ///////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
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|
4668 // thread stack |
666e6ce3976c
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simonis
parents:
diff
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|
4669 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
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|
4670 // 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
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|
4671 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
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|
4672 // ! do not change anything here unless you know what you are doing ! |
666e6ce3976c
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parents:
diff
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|
4673 static void query_stack_dimensions(address* p_stack_base, size_t* p_stack_size) { |
666e6ce3976c
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simonis
parents:
diff
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|
4674 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4675 // 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
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|
4676 // primordial threads anyway, I assert here |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
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|
4677 guarantee(!os::Aix::is_primordial_thread(), "not allowed on the primordial thread"); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4678 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4679 // 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
|
4680 // (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
|
4681 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
4682 // 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
|
4683 // 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
|
4684 // 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
|
4685 // 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
|
4686 // 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
|
4687 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4688 pthread_t tid = pthread_self(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4689 struct __pthrdsinfo pinfo; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4690 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
|
4691 int dummy_size = sizeof(dummy); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4692 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4693 memset(&pinfo, 0, sizeof(pinfo)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4694 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4695 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
|
4696 sizeof(pinfo), dummy, &dummy_size); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4697 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4698 if (rc != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4699 fprintf(stderr, "pthread_getthrds_np failed (%d)\n", rc); |
666e6ce3976c
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simonis
parents:
diff
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|
4700 guarantee(0, "pthread_getthrds_np failed"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4701 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4702 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4703 guarantee(pinfo.__pi_stackend, "returned stack base invalid"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
4704 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4705 // 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
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diff
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|
4706 // (when handing down a stack to pthread create, see pthread_attr_setstackaddr). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
4707 // 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
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diff
changeset
|
4708 guarantee(pinfo.__pi_stacksize, "returned stack size invalid"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
4709 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4710 // On AIX, stacks are not necessarily page aligned so round the base and size accordingly |
666e6ce3976c
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simonis
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diff
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|
4711 if (p_stack_base) { |
666e6ce3976c
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simonis
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diff
changeset
|
4712 (*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
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diff
changeset
|
4713 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
4714 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4715 if (p_stack_size) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
4716 (*p_stack_size) = pinfo.__pi_stacksize - os::Aix::stack_page_size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
4717 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
4718 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4719 #ifndef PRODUCT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4720 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4721 fprintf(stderr, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4722 "query_stack_dimensions() -> real stack_base=" INTPTR_FORMAT ", real stack_addr=" INTPTR_FORMAT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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|
4723 ", real stack_size=" INTPTR_FORMAT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
4724 ", stack_base=" INTPTR_FORMAT ", stack_size=" INTPTR_FORMAT "\n", |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
4725 (intptr_t)pinfo.__pi_stackend, (intptr_t)pinfo.__pi_stackaddr, pinfo.__pi_stacksize, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
4726 (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
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diff
changeset
|
4727 pinfo.__pi_stacksize - os::Aix::stack_page_size()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
4728 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
4729 #endif |
666e6ce3976c
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|
4730 |
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|
4731 } // end query_stack_dimensions |
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|
4732 |
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|
4733 // get the current stack base from the OS (actually, the pthread library) |
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|
4734 address os::current_stack_base() { |
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|
4735 address p; |
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|
4736 query_stack_dimensions(&p, 0); |
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|
4737 return p; |
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|
4738 } |
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|
4739 |
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|
4740 // get the current stack size from the OS (actually, the pthread library) |
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|
4741 size_t os::current_stack_size() { |
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|
4742 size_t s; |
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|
4743 query_stack_dimensions(0, &s); |
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|
4744 return s; |
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|
4745 } |
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|
4746 |
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|
4747 // Refer to the comments in os_solaris.cpp park-unpark. |
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|
4748 // |
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|
4749 // Beware -- Some versions of NPTL embody a flaw where pthread_cond_timedwait() can |
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|
4750 // hang indefinitely. For instance NPTL 0.60 on 2.4.21-4ELsmp is vulnerable. |
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|
4751 // For specifics regarding the bug see GLIBC BUGID 261237 : |
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|
4752 // http://www.mail-archive.com/debian-glibc@lists.debian.org/msg10837.html. |
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|
4753 // Briefly, pthread_cond_timedwait() calls with an expiry time that's not in the future |
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|
4754 // will either hang or corrupt the condvar, resulting in subsequent hangs if the condvar |
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|
4755 // is used. (The simple C test-case provided in the GLIBC bug report manifests the |
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|
4756 // hang). The JVM is vulernable via sleep(), Object.wait(timo), LockSupport.parkNanos() |
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|
4757 // and monitorenter when we're using 1-0 locking. All those operations may result in |
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|
4758 // calls to pthread_cond_timedwait(). Using LD_ASSUME_KERNEL to use an older version |
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|
4759 // of libpthread avoids the problem, but isn't practical. |
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|
4760 // |
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|
4761 // Possible remedies: |
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|
4762 // |
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|
4763 // 1. Establish a minimum relative wait time. 50 to 100 msecs seems to work. |
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|
4764 // This is palliative and probabilistic, however. If the thread is preempted |
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diff
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|
4765 // between the call to compute_abstime() and pthread_cond_timedwait(), more |
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|
4766 // than the minimum period may have passed, and the abstime may be stale (in the |
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|
4767 // past) resultin in a hang. Using this technique reduces the odds of a hang |
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|
4768 // but the JVM is still vulnerable, particularly on heavily loaded systems. |
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|
4769 // |
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|
4770 // 2. Modify park-unpark to use per-thread (per ParkEvent) pipe-pairs instead |
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|
4771 // of the usual flag-condvar-mutex idiom. The write side of the pipe is set |
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|
4772 // NDELAY. unpark() reduces to write(), park() reduces to read() and park(timo) |
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|
4773 // reduces to poll()+read(). This works well, but consumes 2 FDs per extant |
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|
4774 // thread. |
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|
4775 // |
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|
4776 // 3. Embargo pthread_cond_timedwait() and implement a native "chron" thread |
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|
4777 // that manages timeouts. We'd emulate pthread_cond_timedwait() by enqueuing |
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|
4778 // a timeout request to the chron thread and then blocking via pthread_cond_wait(). |
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|
4779 // This also works well. In fact it avoids kernel-level scalability impediments |
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|
4780 // on certain platforms that don't handle lots of active pthread_cond_timedwait() |
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diff
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|
4781 // timers in a graceful fashion. |
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diff
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|
4782 // |
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|
4783 // 4. When the abstime value is in the past it appears that control returns |
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diff
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|
4784 // correctly from pthread_cond_timedwait(), but the condvar is left corrupt. |
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diff
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|
4785 // Subsequent timedwait/wait calls may hang indefinitely. Given that, we |
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diff
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|
4786 // can avoid the problem by reinitializing the condvar -- by cond_destroy() |
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|
4787 // followed by cond_init() -- after all calls to pthread_cond_timedwait(). |
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|
4788 // It may be possible to avoid reinitialization by checking the return |
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|
4789 // value from pthread_cond_timedwait(). In addition to reinitializing the |
666e6ce3976c
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diff
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|
4790 // condvar we must establish the invariant that cond_signal() is only called |
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diff
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|
4791 // within critical sections protected by the adjunct mutex. This prevents |
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|
4792 // cond_signal() from "seeing" a condvar that's in the midst of being |
666e6ce3976c
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diff
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|
4793 // reinitialized or that is corrupt. Sadly, this invariant obviates the |
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diff
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|
4794 // desirable signal-after-unlock optimization that avoids futile context switching. |
666e6ce3976c
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diff
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|
4795 // |
666e6ce3976c
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diff
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|
4796 // I'm also concerned that some versions of NTPL might allocate an auxilliary |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
4797 // structure when a condvar is used or initialized. cond_destroy() would |
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diff
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|
4798 // release the helper structure. Our reinitialize-after-timedwait fix |
666e6ce3976c
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parents:
diff
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|
4799 // put excessive stress on malloc/free and locks protecting the c-heap. |
666e6ce3976c
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diff
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|
4800 // |
666e6ce3976c
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diff
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|
4801 // We currently use (4). See the WorkAroundNTPLTimedWaitHang flag. |
666e6ce3976c
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diff
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|
4802 // It may be possible to refine (4) by checking the kernel and NTPL verisons |
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diff
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|
4803 // and only enabling the work-around for vulnerable environments. |
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diff
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|
4804 |
666e6ce3976c
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|
4805 // utility to compute the abstime argument to timedwait: |
666e6ce3976c
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diff
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|
4806 // millis is the relative timeout time |
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diff
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|
4807 // abstime will be the absolute timeout time |
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|
4808 // TODO: replace compute_abstime() with unpackTime() |
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diff
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|
4809 |
666e6ce3976c
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|
4810 static struct timespec* compute_abstime(timespec* abstime, jlong millis) { |
666e6ce3976c
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|
4811 if (millis < 0) millis = 0; |
666e6ce3976c
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diff
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|
4812 struct timeval now; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
4813 int status = gettimeofday(&now, NULL); |
666e6ce3976c
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diff
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|
4814 assert(status == 0, "gettimeofday"); |
666e6ce3976c
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diff
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|
4815 jlong seconds = millis / 1000; |
666e6ce3976c
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|
4816 millis %= 1000; |
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|
4817 if (seconds > 50000000) { // see man cond_timedwait(3T) |
666e6ce3976c
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|
4818 seconds = 50000000; |
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diff
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|
4819 } |
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|
4820 abstime->tv_sec = now.tv_sec + seconds; |
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|
4821 long usec = now.tv_usec + millis * 1000; |
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|
4822 if (usec >= 1000000) { |
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|
4823 abstime->tv_sec += 1; |
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|
4824 usec -= 1000000; |
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diff
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|
4825 } |
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|
4826 abstime->tv_nsec = usec * 1000; |
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diff
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|
4827 return abstime; |
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diff
changeset
|
4828 } |
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|
4829 |
666e6ce3976c
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|
4830 |
666e6ce3976c
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|
4831 // Test-and-clear _Event, always leaves _Event set to 0, returns immediately. |
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diff
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|
4832 // Conceptually TryPark() should be equivalent to park(0). |
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|
4833 |
666e6ce3976c
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diff
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|
4834 int os::PlatformEvent::TryPark() { |
666e6ce3976c
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diff
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|
4835 for (;;) { |
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diff
changeset
|
4836 const int v = _Event; |
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diff
changeset
|
4837 guarantee ((v == 0) || (v == 1), "invariant"); |
666e6ce3976c
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diff
changeset
|
4838 if (Atomic::cmpxchg (0, &_Event, v) == v) return v; |
666e6ce3976c
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|
4839 } |
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diff
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|
4840 } |
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|
4841 |
666e6ce3976c
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|
4842 void os::PlatformEvent::park() { // AKA "down()" |
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|
4843 // Invariant: Only the thread associated with the Event/PlatformEvent |
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|
4844 // may call park(). |
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changeset
|
4845 // TODO: assert that _Assoc != NULL or _Assoc == Self |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
4846 int v; |
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changeset
|
4847 for (;;) { |
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changeset
|
4848 v = _Event; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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changeset
|
4849 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break; |
666e6ce3976c
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diff
changeset
|
4850 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4851 guarantee (v >= 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4852 if (v == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4853 // Do this the hard way by blocking ... |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4854 int status = pthread_mutex_lock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4855 assert_status(status == 0, status, "mutex_lock"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4856 guarantee (_nParked == 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4857 ++ _nParked; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4858 while (_Event < 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4859 status = pthread_cond_wait(_cond, _mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4860 assert_status(status == 0 || status == ETIMEDOUT, status, "cond_timedwait"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4861 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4862 -- _nParked; |
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 // 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
|
4865 // 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
|
4866 _Event = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4867 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4868 assert_status(status == 0, status, "mutex_unlock"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4869 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4870 guarantee (_Event >= 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4871 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4872 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4873 int os::PlatformEvent::park(jlong millis) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4874 guarantee (_nParked == 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4875 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4876 int v; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4877 for (;;) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4878 v = _Event; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4879 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break; |
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 guarantee (v >= 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4882 if (v != 0) return OS_OK; |
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 // 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
|
4885 // Consider enforcing a minimum timeout value. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4886 struct timespec abst; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4887 compute_abstime(&abst, millis); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4888 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4889 int ret = OS_TIMEOUT; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4890 int status = pthread_mutex_lock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4891 assert_status(status == 0, status, "mutex_lock"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4892 guarantee (_nParked == 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4893 ++_nParked; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4894 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4895 // Object.wait(timo) will return because of |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4896 // (a) notification |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4897 // (b) timeout |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4898 // (c) thread.interrupt |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4899 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4900 // 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
|
4901 // 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
|
4902 // The underlying Solaris implementation, cond_timedwait, admits |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4903 // 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
|
4904 // 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
|
4905 // 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
|
4906 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4907 // TODO: properly differentiate simultaneous notify+interrupt. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4908 // 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
|
4909 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4910 while (_Event < 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4911 status = pthread_cond_timedwait(_cond, _mutex, &abst); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4912 assert_status(status == 0 || status == ETIMEDOUT, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4913 status, "cond_timedwait"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4914 if (!FilterSpuriousWakeups) break; // previous semantics |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4915 if (status == ETIMEDOUT) break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4916 // We consume and ignore EINTR and spurious wakeups. |
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 --_nParked; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4919 if (_Event >= 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4920 ret = OS_OK; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4921 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4922 _Event = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4923 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4924 assert_status(status == 0, status, "mutex_unlock"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4925 assert (_nParked == 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4926 return ret; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4927 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4928 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4929 void os::PlatformEvent::unpark() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4930 int v, AnyWaiters; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4931 for (;;) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4932 v = _Event; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4933 if (v > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4934 // 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
|
4935 // 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
|
4936 // To avoid problems execute a barrier and then |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4937 // ratify the value. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4938 OrderAccess::fence(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4939 if (_Event == v) return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4940 continue; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4941 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4942 if (Atomic::cmpxchg (v+1, &_Event, v) == v) break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4943 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4944 if (v < 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4945 // 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
|
4946 int status = pthread_mutex_lock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4947 assert_status(status == 0, status, "mutex_lock"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4948 AnyWaiters = _nParked; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4949 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4950 if (AnyWaiters != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4951 // We intentional signal *after* dropping the lock |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4952 // to avoid a common class of futile wakeups. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4953 status = pthread_cond_signal(_cond); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4954 assert_status(status == 0, status, "cond_signal"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4955 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4956 // Mutex should be locked for pthread_cond_signal(_cond). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4957 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4958 assert_status(status == 0, status, "mutex_unlock"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4959 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4960 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4961 // 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
|
4962 // 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
|
4963 // 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
|
4964 // 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
|
4965 // simply re-test the condition and re-park itself. |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4969 // JSR166 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4970 // ------------------------------------------------------- |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4971 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4972 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4973 // 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
|
4974 // 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
|
4975 // mutex/condvar pair, plus a a count. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4976 // 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
|
4977 // 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
|
4978 // 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
|
4979 // 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
|
4980 // is no need to track notifications. |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4983 #define MAX_SECS 100000000 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4984 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4985 // 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
|
4986 // common place in dolphin. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4987 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4988 // 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
|
4989 // 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
|
4990 // 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
|
4991 // given timespec structure. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4992 // 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
|
4993 // 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
|
4994 // 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
|
4995 // 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
|
4996 // 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
|
4997 // 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
|
4998 // 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
|
4999 // 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
|
5000 // years from "now". |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5001 // |
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 static void unpackTime(timespec* absTime, bool isAbsolute, jlong time) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5004 assert (time > 0, "convertTime"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5005 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5006 struct timeval now; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5007 int status = gettimeofday(&now, NULL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5008 assert(status == 0, "gettimeofday"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5009 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5010 time_t max_secs = now.tv_sec + MAX_SECS; |
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 if (isAbsolute) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5013 jlong secs = time / 1000; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5014 if (secs > max_secs) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5015 absTime->tv_sec = max_secs; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5016 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5017 else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5018 absTime->tv_sec = secs; |
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 absTime->tv_nsec = (time % 1000) * NANOSECS_PER_MILLISEC; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5021 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5022 else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5023 jlong secs = time / NANOSECS_PER_SEC; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5024 if (secs >= MAX_SECS) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5025 absTime->tv_sec = max_secs; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5026 absTime->tv_nsec = 0; |
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 else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5029 absTime->tv_sec = now.tv_sec + secs; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5030 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
|
5031 if (absTime->tv_nsec >= NANOSECS_PER_SEC) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5032 absTime->tv_nsec -= NANOSECS_PER_SEC; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5033 ++absTime->tv_sec; // note: this must be <= max_secs |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5034 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5035 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5036 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5037 assert(absTime->tv_sec >= 0, "tv_sec < 0"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5038 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
|
5039 assert(absTime->tv_nsec >= 0, "tv_nsec < 0"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5040 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
|
5041 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5042 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5043 void Parker::park(bool isAbsolute, jlong time) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5044 // Optional fast-path check: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5045 // Return immediately if a permit is available. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5046 if (_counter > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5047 _counter = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5048 OrderAccess::fence(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5049 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5050 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5051 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5052 Thread* thread = Thread::current(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5053 assert(thread->is_Java_thread(), "Must be JavaThread"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5054 JavaThread *jt = (JavaThread *)thread; |
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 // 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
|
5057 // Check interrupt before trying to wait |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5058 if (Thread::is_interrupted(thread, false)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5059 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5060 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5061 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5062 // Next, demultiplex/decode time arguments |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5063 timespec absTime; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5064 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
|
5065 return; |
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 if (time > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5068 unpackTime(&absTime, isAbsolute, time); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5069 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5070 |
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 // Enter safepoint region |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5073 // Beware of deadlocks such as 6317397. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5074 // 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
|
5075 // 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
|
5076 // 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
|
5077 // the ThreadBlockInVM() CTOR and DTOR may grab Threads_lock. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5078 ThreadBlockInVM tbivm(jt); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5079 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5080 // 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
|
5081 // unblocking. Also. check interrupt before trying wait |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5082 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
|
5083 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5084 } |
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 int status; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5087 if (_counter > 0) { // no wait needed |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5088 _counter = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5089 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5090 assert (status == 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5091 OrderAccess::fence(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5092 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5093 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5094 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5095 #ifdef ASSERT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5096 // 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
|
5097 // (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
|
5098 sigset_t oldsigs; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5099 sigset_t* allowdebug_blocked = os::Aix::allowdebug_blocked_signals(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5100 pthread_sigmask(SIG_BLOCK, allowdebug_blocked, &oldsigs); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5101 #endif |
666e6ce3976c
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|
5102 |
666e6ce3976c
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|
5103 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); |
666e6ce3976c
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|
5104 jt->set_suspend_equivalent(); |
666e6ce3976c
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diff
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|
5105 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() |
666e6ce3976c
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diff
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|
5106 |
666e6ce3976c
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parents:
diff
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|
5107 if (time == 0) { |
666e6ce3976c
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parents:
diff
changeset
|
5108 status = pthread_cond_wait (_cond, _mutex); |
666e6ce3976c
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diff
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|
5109 } else { |
666e6ce3976c
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parents:
diff
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|
5110 status = pthread_cond_timedwait (_cond, _mutex, &absTime); |
666e6ce3976c
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diff
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|
5111 if (status != 0 && WorkAroundNPTLTimedWaitHang) { |
666e6ce3976c
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diff
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|
5112 pthread_cond_destroy (_cond); |
666e6ce3976c
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diff
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|
5113 pthread_cond_init (_cond, NULL); |
666e6ce3976c
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diff
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|
5114 } |
666e6ce3976c
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parents:
diff
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|
5115 } |
666e6ce3976c
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parents:
diff
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|
5116 assert_status(status == 0 || status == EINTR || |
666e6ce3976c
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simonis
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diff
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|
5117 status == ETIME || status == ETIMEDOUT, |
666e6ce3976c
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simonis
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diff
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|
5118 status, "cond_timedwait"); |
666e6ce3976c
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diff
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|
5119 |
666e6ce3976c
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parents:
diff
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|
5120 #ifdef ASSERT |
666e6ce3976c
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diff
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|
5121 pthread_sigmask(SIG_SETMASK, &oldsigs, NULL); |
666e6ce3976c
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diff
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|
5122 #endif |
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diff
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|
5123 |
666e6ce3976c
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diff
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|
5124 _counter = 0; |
666e6ce3976c
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diff
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|
5125 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
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diff
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|
5126 assert_status(status == 0, status, "invariant"); |
666e6ce3976c
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diff
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|
5127 // If externally suspended while waiting, re-suspend |
666e6ce3976c
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diff
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|
5128 if (jt->handle_special_suspend_equivalent_condition()) { |
666e6ce3976c
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|
5129 jt->java_suspend_self(); |
666e6ce3976c
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diff
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|
5130 } |
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diff
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|
5131 |
666e6ce3976c
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parents:
diff
changeset
|
5132 OrderAccess::fence(); |
666e6ce3976c
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parents:
diff
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|
5133 } |
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diff
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|
5134 |
666e6ce3976c
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parents:
diff
changeset
|
5135 void Parker::unpark() { |
666e6ce3976c
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parents:
diff
changeset
|
5136 int s, status; |
666e6ce3976c
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parents:
diff
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|
5137 status = pthread_mutex_lock(_mutex); |
666e6ce3976c
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diff
changeset
|
5138 assert (status == 0, "invariant"); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5139 s = _counter; |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5140 _counter = 1; |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5141 if (s < 1) { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5142 if (WorkAroundNPTLTimedWaitHang) { |
666e6ce3976c
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simonis
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diff
changeset
|
5143 status = pthread_cond_signal (_cond); |
666e6ce3976c
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simonis
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diff
changeset
|
5144 assert (status == 0, "invariant"); |
666e6ce3976c
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simonis
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diff
changeset
|
5145 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5146 assert (status == 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5147 } else { |
666e6ce3976c
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parents:
diff
changeset
|
5148 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5149 assert (status == 0, "invariant"); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5150 status = pthread_cond_signal (_cond); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5151 assert (status == 0, "invariant"); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5152 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5153 } else { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5154 pthread_mutex_unlock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5155 assert (status == 0, "invariant"); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5156 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5157 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5158 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5159 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5160 extern char** environ; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5161 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5162 // Run the specified command in a separate process. Return its exit value, |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5163 // or -1 on failure (e.g. can't fork a new process). |
666e6ce3976c
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parents:
diff
changeset
|
5164 // 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
|
5165 // doesn't block SIGINT et al. |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5166 int os::fork_and_exec(char* cmd) { |
14421
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
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14415
diff
changeset
|
5167 char * argv[4] = {"sh", "-c", cmd, NULL}; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
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14415
diff
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|
5168 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5169 pid_t pid = fork(); |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5170 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5171 if (pid < 0) { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5172 // fork failed |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5173 return -1; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5174 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5175 } else if (pid == 0) { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5176 // child process |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5177 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5178 // try to be consistent with system(), which uses "/usr/bin/sh" on AIX |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5179 execve("/usr/bin/sh", argv, environ); |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5180 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5181 // execve failed |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5182 _exit(-1); |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5183 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5184 } else { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5185 // copied from J2SE ..._waitForProcessExit() in UNIXProcess_md.c; we don't |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5186 // care about the actual exit code, for now. |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5187 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5188 int status; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5189 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5190 // Wait for the child process to exit. This returns immediately if |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5191 // the child has already exited. */ |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
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14415
diff
changeset
|
5192 while (waitpid(pid, &status, 0) < 0) { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5193 switch (errno) { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5194 case ECHILD: return 0; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
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14415
diff
changeset
|
5195 case EINTR: break; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5196 default: return -1; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5197 } |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5198 } |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5199 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5200 if (WIFEXITED(status)) { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5201 // The child exited normally; get its exit code. |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
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14415
diff
changeset
|
5202 return WEXITSTATUS(status); |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
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14415
diff
changeset
|
5203 } else if (WIFSIGNALED(status)) { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
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14415
diff
changeset
|
5204 // The child exited because of a signal |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
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14415
diff
changeset
|
5205 // The best value to return is 0x80 + signal number, |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
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14415
diff
changeset
|
5206 // because that is what all Unix shells do, and because |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5207 // it allows callers to distinguish between process exit and |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
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14415
diff
changeset
|
5208 // process death by signal. |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
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14415
diff
changeset
|
5209 return 0x80 + WTERMSIG(status); |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5210 } else { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5211 // Unknown exit code; pass it through |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5212 return status; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5213 } |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5214 } |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5215 // Remove warning. |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5216 return -1; |
14415
666e6ce3976c
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simonis
parents:
diff
changeset
|
5217 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5218 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
5219 // is_headless_jre() |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
5220 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
5221 // 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
|
5222 // 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
|
5223 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
5224 // 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
|
5225 // as libawt.so, and renamed libawt_xawt.so |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5226 bool os::is_headless_jre() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5227 struct stat statbuf; |
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5228 char buf[MAXPATHLEN]; |
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5229 char libmawtpath[MAXPATHLEN]; |
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5230 const char *xawtstr = "/xawt/libmawt.so"; |
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5231 const char *new_xawtstr = "/libawt_xawt.so"; |
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5232 |
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5233 char *p; |
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5234 |
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5235 // Get path to libjvm.so |
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5236 os::jvm_path(buf, sizeof(buf)); |
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5237 |
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5238 // Get rid of libjvm.so |
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5239 p = strrchr(buf, '/'); |
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5240 if (p == NULL) return false; |
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5241 else *p = '\0'; |
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5242 |
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5243 // Get rid of client or server |
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5244 p = strrchr(buf, '/'); |
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5245 if (p == NULL) return false; |
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5246 else *p = '\0'; |
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5247 |
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5248 // check xawt/libmawt.so |
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5249 strcpy(libmawtpath, buf); |
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5250 strcat(libmawtpath, xawtstr); |
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5251 if (::stat(libmawtpath, &statbuf) == 0) return false; |
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5252 |
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5253 // check libawt_xawt.so |
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5254 strcpy(libmawtpath, buf); |
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5255 strcat(libmawtpath, new_xawtstr); |
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5256 if (::stat(libmawtpath, &statbuf) == 0) return false; |
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5257 |
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5258 return true; |
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5259 } |
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5260 |
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5261 // Get the default path to the core file |
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5262 // Returns the length of the string |
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5263 int os::get_core_path(char* buffer, size_t bufferSize) { |
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5264 const char* p = get_current_directory(buffer, bufferSize); |
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5265 |
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5266 if (p == NULL) { |
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5267 assert(p != NULL, "failed to get current directory"); |
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5268 return 0; |
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5269 } |
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5270 |
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5271 return strlen(buffer); |
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5272 } |
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5273 |
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5274 #ifndef PRODUCT |
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5275 void TestReserveMemorySpecial_test() { |
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5276 // No tests available for this platform |
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5277 } |
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5278 #endif |