Mercurial > hg > truffle
annotate src/os/aix/vm/os_aix.cpp @ 14722:8dfd3f53ba4a
Update vm descriptions in readme
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Mon, 24 Mar 2014 11:24:22 +0100 |
parents | 97586c131ac8 |
children | 92aa6797d639 |
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) { |
14686
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1138 info_ptr->max_value = ALL_64_BITS; |
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1139 // mread_real_time() is monotonic (see 'os::javaTimeNanos()') |
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1140 info_ptr->may_skip_backward = false; |
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1141 info_ptr->may_skip_forward = false; |
14415
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1142 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time |
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1143 } |
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1144 |
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1145 // Return the real, user, and system times in seconds from an |
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1146 // arbitrary fixed point in the past. |
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1147 bool os::getTimesSecs(double* process_real_time, |
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1148 double* process_user_time, |
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1149 double* process_system_time) { |
14451 | 1150 struct tms ticks; |
1151 clock_t real_ticks = times(&ticks); | |
1152 | |
1153 if (real_ticks == (clock_t) (-1)) { | |
1154 return false; | |
1155 } else { | |
1156 double ticks_per_second = (double) clock_tics_per_sec; | |
1157 *process_user_time = ((double) ticks.tms_utime) / ticks_per_second; | |
1158 *process_system_time = ((double) ticks.tms_stime) / ticks_per_second; | |
1159 *process_real_time = ((double) real_ticks) / ticks_per_second; | |
1160 | |
1161 return true; | |
1162 } | |
14415
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1163 } |
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1164 |
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1165 |
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1166 char * os::local_time_string(char *buf, size_t buflen) { |
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1167 struct tm t; |
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1168 time_t long_time; |
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1169 time(&long_time); |
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1170 localtime_r(&long_time, &t); |
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1171 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", |
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1172 t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, |
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1173 t.tm_hour, t.tm_min, t.tm_sec); |
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1174 return buf; |
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1175 } |
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1176 |
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1177 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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1178 return localtime_r(clock, res); |
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1179 } |
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1180 |
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1181 //////////////////////////////////////////////////////////////////////////////// |
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1182 // runtime exit support |
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1183 |
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1184 // Note: os::shutdown() might be called very early during initialization, or |
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1185 // called from signal handler. Before adding something to os::shutdown(), make |
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1186 // sure it is async-safe and can handle partially initialized VM. |
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1187 void os::shutdown() { |
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1188 |
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1189 // allow PerfMemory to attempt cleanup of any persistent resources |
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1190 perfMemory_exit(); |
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1191 |
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1192 // needs to remove object in file system |
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1193 AttachListener::abort(); |
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1194 |
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1195 // flush buffered output, finish log files |
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1196 ostream_abort(); |
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1197 |
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1198 // Check for abort hook |
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1199 abort_hook_t abort_hook = Arguments::abort_hook(); |
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1200 if (abort_hook != NULL) { |
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1201 abort_hook(); |
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1202 } |
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1203 |
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1204 } |
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1205 |
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1206 // Note: os::abort() might be called very early during initialization, or |
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1207 // called from signal handler. Before adding something to os::abort(), make |
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1208 // sure it is async-safe and can handle partially initialized VM. |
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1209 void os::abort(bool dump_core) { |
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1210 os::shutdown(); |
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1211 if (dump_core) { |
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|
1212 #ifndef PRODUCT |
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1213 fdStream out(defaultStream::output_fd()); |
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1214 out.print_raw("Current thread is "); |
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1215 char buf[16]; |
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1216 jio_snprintf(buf, sizeof(buf), UINTX_FORMAT, os::current_thread_id()); |
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1217 out.print_raw_cr(buf); |
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1218 out.print_raw_cr("Dumping core ..."); |
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1219 #endif |
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1220 ::abort(); // dump core |
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|
1221 } |
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|
1222 |
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1223 ::exit(1); |
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|
1224 } |
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|
1225 |
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1226 // Die immediately, no exit hook, no abort hook, no cleanup. |
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1227 void os::die() { |
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|
1228 ::abort(); |
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|
1229 } |
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|
1230 |
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|
1231 // Unused on Aix for now. |
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1232 void os::set_error_file(const char *logfile) {} |
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|
1233 |
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|
1234 |
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1235 // This method is a copy of JDK's sysGetLastErrorString |
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1236 // from src/solaris/hpi/src/system_md.c |
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|
1237 |
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1238 size_t os::lasterror(char *buf, size_t len) { |
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|
1239 |
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|
1240 if (errno == 0) return 0; |
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|
1241 |
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|
1242 const char *s = ::strerror(errno); |
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|
1243 size_t n = ::strlen(s); |
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|
1244 if (n >= len) { |
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|
1245 n = len - 1; |
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|
1246 } |
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|
1247 ::strncpy(buf, s, n); |
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|
1248 buf[n] = '\0'; |
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|
1249 return n; |
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|
1250 } |
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|
1251 |
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1252 intx os::current_thread_id() { return (intx)pthread_self(); } |
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|
1253 int os::current_process_id() { |
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|
1254 |
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1255 // This implementation returns a unique pid, the pid of the |
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|
1256 // launcher thread that starts the vm 'process'. |
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|
1257 |
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1258 // Under POSIX, getpid() returns the same pid as the |
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1259 // launcher thread rather than a unique pid per thread. |
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1260 // Use gettid() if you want the old pre NPTL behaviour. |
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1261 |
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1262 // if you are looking for the result of a call to getpid() that |
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1263 // returns a unique pid for the calling thread, then look at the |
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|
1264 // OSThread::thread_id() method in osThread_linux.hpp file |
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|
1265 |
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|
1266 return (int)(_initial_pid ? _initial_pid : getpid()); |
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|
1267 } |
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|
1268 |
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|
1269 // DLL functions |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1270 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1271 const char* os::dll_file_extension() { return ".so"; } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1272 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1273 // 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
|
1274 // 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
|
1275 const char* os::get_temp_directory() { return "/tmp"; } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1276 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1277 static bool file_exists(const char* filename) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1278 struct stat statbuf; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1279 if (filename == NULL || strlen(filename) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1280 return false; |
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 return os::stat(filename, &statbuf) == 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1283 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1284 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1285 bool os::dll_build_name(char* buffer, size_t buflen, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1286 const char* pname, const char* fname) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1287 bool retval = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1288 // Copied from libhpi |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1289 const size_t pnamelen = pname ? strlen(pname) : 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1290 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1291 // Return error on buffer overflow. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1292 if (pnamelen + strlen(fname) + 10 > (size_t) buflen) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1293 *buffer = '\0'; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1294 return retval; |
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
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parents:
diff
changeset
|
1296 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1297 if (pnamelen == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1298 snprintf(buffer, buflen, "lib%s.so", fname); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1299 retval = true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1300 } else if (strchr(pname, *os::path_separator()) != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1301 int n; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1302 char** pelements = split_path(pname, &n); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1303 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
|
1304 // Really shouldn't be NULL, but check can't hurt |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1305 if (pelements[i] == NULL || strlen(pelements[i]) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1306 continue; // skip the empty path values |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1307 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1308 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
|
1309 if (file_exists(buffer)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1310 retval = true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1311 break; |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1314 // release the storage |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1315 for (int i = 0; i < n; i++) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1316 if (pelements[i] != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1317 FREE_C_HEAP_ARRAY(char, pelements[i], mtInternal); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1318 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1319 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1320 if (pelements != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1321 FREE_C_HEAP_ARRAY(char*, pelements, mtInternal); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1322 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1323 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1324 snprintf(buffer, buflen, "%s/lib%s.so", pname, fname); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1325 retval = true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1326 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1327 return retval; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1328 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1329 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1330 // Check if addr is inside libjvm.so. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1331 bool os::address_is_in_vm(address addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1332 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1333 // 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
|
1334 // 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
|
1335 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1336 const LoadedLibraryModule* lib = LoadedLibraries::find_for_text_address(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1337 if (lib) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1338 if (strcmp(lib->get_shortname(), "libjvm.so") == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1339 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1340 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1341 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1342 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1343 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1344 lib = LoadedLibraries::find_for_data_address(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1345 if (lib) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1346 if (strcmp(lib->get_shortname(), "libjvm.so") == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1347 return true; |
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 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1350 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1351 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1352 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1353 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1354 } |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1357 // 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
|
1358 // 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
|
1359 // it is returned unchanged. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1360 // 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
|
1361 // code entry point. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1362 // 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
|
1363 // NULL is returned. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1364 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
|
1365 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1366 const LoadedLibraryModule* lib = LoadedLibraries::find_for_text_address(p); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1367 if (lib) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1368 // its a real code pointer |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1369 return p; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1370 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1371 lib = LoadedLibraries::find_for_data_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 // pointer to data segment, potential function descriptor |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1374 address code_entry = (address)(((FunctionDescriptor*)p)->entry()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1375 if (LoadedLibraries::find_for_text_address(code_entry)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1376 // Its a function descriptor |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1377 return code_entry; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1378 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1379 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1380 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1381 return NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1382 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1383 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1384 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
|
1385 int buflen, int *offset) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1386 if (offset) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1387 *offset = -1; |
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 if (buf) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1390 buf[0] = '\0'; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1391 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1392 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1393 // Resolve function ptr literals first. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1394 addr = resolve_function_descriptor_to_code_pointer(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1395 if (!addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1396 return false; |
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
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diff
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|
1398 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1399 // 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
|
1400 return Decoder::decode(addr, buf, buflen, offset); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1401 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1402 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1403 static int getModuleName(codeptr_t pc, // [in] program counter |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1404 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
|
1405 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
|
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 // initialize output parameters |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1409 if (p_name && namelen > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1410 *p_name = '\0'; |
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 if (p_errmsg && errmsglen > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1413 *p_errmsg = '\0'; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1414 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1415 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1416 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
|
1417 if (lib) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
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|
1418 if (p_name && namelen > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1419 sprintf(p_name, "%.*s", namelen, lib->get_shortname()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1420 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1421 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1422 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1423 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1424 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1425 fprintf(stderr, "pc outside any module"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1426 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1427 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1428 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1429 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1430 } |
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
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parents:
diff
changeset
|
1432 bool os::dll_address_to_library_name(address addr, char* buf, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1433 int buflen, int* offset) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1434 if (offset) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1435 *offset = -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1436 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1437 if (buf) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1438 buf[0] = '\0'; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1439 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1440 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1441 // Resolve function ptr literals first. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1442 addr = resolve_function_descriptor_to_code_pointer(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1443 if (!addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1444 return false; |
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
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parents:
diff
changeset
|
1446 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1447 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
|
1448 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1449 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1450 return false; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1453 // 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
|
1454 // for the same architecture as Hotspot is running on |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1455 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
|
1456 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1457 if (ebuf && ebuflen > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1458 ebuf[0] = '\0'; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1459 ebuf[ebuflen - 1] = '\0'; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1460 } |
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 (!filename || strlen(filename) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1463 ::strncpy(ebuf, "dll_load: empty filename specified", ebuflen - 1); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1464 return NULL; |
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 // 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
|
1468 void * result= ::dlopen(filename, RTLD_LAZY); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1469 if (result != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1470 // 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
|
1471 LoadedLibraries::reload(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1472 return result; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1473 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1474 // error analysis when dlopen fails |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1475 const char* const error_report = ::dlerror(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1476 if (error_report && ebuf && ebuflen > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1477 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
|
1478 filename, ::getenv("LIBPATH"), ::getenv("LD_LIBRARY_PATH"), error_report); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1479 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1480 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1481 return NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1482 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1483 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1484 // 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
|
1485 // 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
|
1486 // 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
|
1487 void* os::dll_lookup(void* handle, const char* name) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1488 pthread_mutex_lock(&dl_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1489 void* res = dlsym(handle, name); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1490 pthread_mutex_unlock(&dl_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1491 return res; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1492 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1493 |
14464
3ef193f311ed
8035423: AIX: Fix os::get_default_process_handle() in os_aix.cpp after 8031968
simonis
parents:
14461
diff
changeset
|
1494 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
|
1495 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
|
1496 } |
3ef193f311ed
8035423: AIX: Fix os::get_default_process_handle() in os_aix.cpp after 8031968
simonis
parents:
14461
diff
changeset
|
1497 |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1498 void os::print_dll_info(outputStream *st) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1499 st->print_cr("Dynamic libraries:"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1500 LoadedLibraries::print(st); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1501 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1502 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1503 void os::print_os_info(outputStream* st) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1504 st->print("OS:"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1505 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1506 st->print("uname:"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1507 struct utsname name; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1508 uname(&name); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1509 st->print(name.sysname); st->print(" "); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1510 st->print(name.nodename); st->print(" "); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1511 st->print(name.release); st->print(" "); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1512 st->print(name.version); st->print(" "); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1513 st->print(name.machine); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1514 st->cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1515 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1516 // rlimit |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1517 st->print("rlimit:"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1518 struct rlimit rlim; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1519 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1520 st->print(" STACK "); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1521 getrlimit(RLIMIT_STACK, &rlim); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1522 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1523 else st->print("%uk", rlim.rlim_cur >> 10); |
666e6ce3976c
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|
1524 |
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|
1525 st->print(", CORE "); |
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|
1526 getrlimit(RLIMIT_CORE, &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(", NPROC "); |
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|
1531 st->print("%d", sysconf(_SC_CHILD_MAX)); |
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|
1532 |
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|
1533 st->print(", NOFILE "); |
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|
1534 getrlimit(RLIMIT_NOFILE, &rlim); |
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|
1535 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity"); |
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1536 else st->print("%d", rlim.rlim_cur); |
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|
1537 |
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|
1538 st->print(", AS "); |
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|
1539 getrlimit(RLIMIT_AS, &rlim); |
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1540 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity"); |
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1541 else st->print("%uk", rlim.rlim_cur >> 10); |
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|
1542 |
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|
1543 // Print limits on DATA, because it limits the C-heap. |
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1544 st->print(", DATA "); |
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|
1545 getrlimit(RLIMIT_DATA, &rlim); |
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1546 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity"); |
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1547 else st->print("%uk", rlim.rlim_cur >> 10); |
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1548 st->cr(); |
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|
1549 |
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|
1550 // load average |
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1551 st->print("load average:"); |
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|
1552 double loadavg[3] = {-1.L, -1.L, -1.L}; |
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1553 os::loadavg(loadavg, 3); |
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1554 st->print("%0.02f %0.02f %0.02f", loadavg[0], loadavg[1], loadavg[2]); |
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1555 st->cr(); |
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|
1556 } |
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|
1557 |
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|
1558 void os::print_memory_info(outputStream* st) { |
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|
1559 |
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|
1560 st->print_cr("Memory:"); |
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|
1561 |
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1562 st->print_cr(" default page size: %s", describe_pagesize(os::vm_page_size())); |
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1563 st->print_cr(" default stack page size: %s", describe_pagesize(os::vm_page_size())); |
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1564 st->print_cr(" default shm page size: %s", describe_pagesize(os::Aix::shm_default_page_size())); |
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1565 st->print_cr(" can use 64K pages dynamically: %s", (os::Aix::can_use_64K_pages() ? "yes" :"no")); |
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1566 st->print_cr(" can use 16M pages dynamically: %s", (os::Aix::can_use_16M_pages() ? "yes" :"no")); |
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1567 if (g_multipage_error != 0) { |
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1568 st->print_cr(" multipage error: %d", g_multipage_error); |
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1569 } |
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|
1570 |
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|
1571 // print out LDR_CNTRL because it affects the default page sizes |
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1572 const char* const ldr_cntrl = ::getenv("LDR_CNTRL"); |
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1573 st->print_cr(" LDR_CNTRL=%s.", ldr_cntrl ? ldr_cntrl : "<unset>"); |
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1574 |
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1575 const char* const extshm = ::getenv("EXTSHM"); |
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1576 st->print_cr(" EXTSHM=%s.", extshm ? extshm : "<unset>"); |
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1577 |
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1578 // Call os::Aix::get_meminfo() to retrieve memory statistics. |
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1579 os::Aix::meminfo_t mi; |
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1580 if (os::Aix::get_meminfo(&mi)) { |
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|
1581 char buffer[256]; |
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|
1582 if (os::Aix::on_aix()) { |
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1583 jio_snprintf(buffer, sizeof(buffer), |
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1584 " physical total : %llu\n" |
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1585 " physical free : %llu\n" |
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|
1586 " swap total : %llu\n" |
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|
1587 " swap free : %llu\n", |
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|
1588 mi.real_total, |
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|
1589 mi.real_free, |
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|
1590 mi.pgsp_total, |
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|
1591 mi.pgsp_free); |
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|
1592 } else { |
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|
1593 Unimplemented(); |
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|
1594 } |
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|
1595 st->print_raw(buffer); |
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|
1596 } else { |
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|
1597 st->print_cr(" (no more information available)"); |
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|
1598 } |
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|
1599 } |
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|
1600 |
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|
1601 void os::pd_print_cpu_info(outputStream* st) { |
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|
1602 // cpu |
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|
1603 st->print("CPU:"); |
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|
1604 st->print("total %d", os::processor_count()); |
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|
1605 // It's not safe to query number of active processors after crash |
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|
1606 // st->print("(active %d)", os::active_processor_count()); |
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|
1607 st->print(" %s", VM_Version::cpu_features()); |
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|
1608 st->cr(); |
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|
1609 } |
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|
1610 |
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|
1611 void os::print_siginfo(outputStream* st, void* siginfo) { |
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|
1612 // Use common posix version. |
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|
1613 os::Posix::print_siginfo_brief(st, (const siginfo_t*) siginfo); |
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|
1614 st->cr(); |
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|
1615 } |
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|
1616 |
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|
1617 |
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|
1618 static void print_signal_handler(outputStream* st, int sig, |
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|
1619 char* buf, size_t buflen); |
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|
1620 |
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|
1621 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { |
666e6ce3976c
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|
1622 st->print_cr("Signal Handlers:"); |
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|
1623 print_signal_handler(st, SIGSEGV, buf, buflen); |
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|
1624 print_signal_handler(st, SIGBUS , buf, buflen); |
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|
1625 print_signal_handler(st, SIGFPE , buf, buflen); |
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|
1626 print_signal_handler(st, SIGPIPE, buf, buflen); |
666e6ce3976c
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|
1627 print_signal_handler(st, SIGXFSZ, buf, buflen); |
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|
1628 print_signal_handler(st, SIGILL , buf, buflen); |
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|
1629 print_signal_handler(st, INTERRUPT_SIGNAL, buf, buflen); |
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|
1630 print_signal_handler(st, SR_signum, buf, buflen); |
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|
1631 print_signal_handler(st, SHUTDOWN1_SIGNAL, buf, buflen); |
666e6ce3976c
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|
1632 print_signal_handler(st, SHUTDOWN2_SIGNAL , buf, buflen); |
666e6ce3976c
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|
1633 print_signal_handler(st, SHUTDOWN3_SIGNAL , buf, buflen); |
666e6ce3976c
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|
1634 print_signal_handler(st, BREAK_SIGNAL, buf, buflen); |
666e6ce3976c
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|
1635 print_signal_handler(st, SIGTRAP, buf, buflen); |
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|
1636 print_signal_handler(st, SIGDANGER, buf, buflen); |
666e6ce3976c
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|
1637 } |
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|
1638 |
666e6ce3976c
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|
1639 static char saved_jvm_path[MAXPATHLEN] = {0}; |
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|
1640 |
666e6ce3976c
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|
1641 // Find the full path to the current module, libjvm.so or libjvm_g.so |
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|
1642 void os::jvm_path(char *buf, jint buflen) { |
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|
1643 // Error checking. |
666e6ce3976c
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|
1644 if (buflen < MAXPATHLEN) { |
666e6ce3976c
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diff
changeset
|
1645 assert(false, "must use a large-enough buffer"); |
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diff
changeset
|
1646 buf[0] = '\0'; |
666e6ce3976c
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parents:
diff
changeset
|
1647 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1648 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1649 // Lazy resolve the path to current module. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1650 if (saved_jvm_path[0] != 0) { |
666e6ce3976c
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diff
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|
1651 strcpy(buf, saved_jvm_path); |
666e6ce3976c
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diff
changeset
|
1652 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1653 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1654 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1655 Dl_info dlinfo; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1656 int ret = dladdr(CAST_FROM_FN_PTR(void *, os::jvm_path), &dlinfo); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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|
1657 assert(ret != 0, "cannot locate libjvm"); |
666e6ce3976c
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|
1658 char* rp = realpath((char *)dlinfo.dli_fname, buf); |
666e6ce3976c
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|
1659 assert(rp != NULL, "error in realpath(): maybe the 'path' argument is too long?"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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|
1660 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1661 strcpy(saved_jvm_path, buf); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1662 } |
666e6ce3976c
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parents:
diff
changeset
|
1663 |
666e6ce3976c
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|
1664 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { |
666e6ce3976c
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diff
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|
1665 // no prefix required, not even "_" |
666e6ce3976c
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|
1666 } |
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|
1667 |
666e6ce3976c
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|
1668 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
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|
1669 // no suffix required |
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diff
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|
1670 } |
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|
1671 |
666e6ce3976c
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|
1672 //////////////////////////////////////////////////////////////////////////////// |
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|
1673 // sun.misc.Signal support |
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|
1674 |
666e6ce3976c
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|
1675 static volatile jint sigint_count = 0; |
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diff
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|
1676 |
666e6ce3976c
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diff
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|
1677 static void |
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|
1678 UserHandler(int sig, void *siginfo, void *context) { |
666e6ce3976c
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parents:
diff
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|
1679 // 4511530 - sem_post is serialized and handled by the manager thread. When |
666e6ce3976c
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|
1680 // the program is interrupted by Ctrl-C, SIGINT is sent to every thread. We |
666e6ce3976c
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diff
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|
1681 // don't want to flood the manager thread with sem_post requests. |
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|
1682 if (sig == SIGINT && Atomic::add(1, &sigint_count) > 1) |
666e6ce3976c
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diff
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|
1683 return; |
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parents:
diff
changeset
|
1684 |
666e6ce3976c
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diff
changeset
|
1685 // Ctrl-C is pressed during error reporting, likely because the error |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
1686 // handler fails to abort. Let VM die immediately. |
666e6ce3976c
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diff
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|
1687 if (sig == SIGINT && is_error_reported()) { |
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parents:
diff
changeset
|
1688 os::die(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1689 } |
666e6ce3976c
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parents:
diff
changeset
|
1690 |
666e6ce3976c
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parents:
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changeset
|
1691 os::signal_notify(sig); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1692 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1693 |
666e6ce3976c
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parents:
diff
changeset
|
1694 void* os::user_handler() { |
666e6ce3976c
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parents:
diff
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|
1695 return CAST_FROM_FN_PTR(void*, UserHandler); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1696 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1697 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1698 extern "C" { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1699 typedef void (*sa_handler_t)(int); |
666e6ce3976c
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parents:
diff
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|
1700 typedef void (*sa_sigaction_t)(int, siginfo_t *, void *); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
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|
1701 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1702 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1703 void* os::signal(int signal_number, void* handler) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1704 struct sigaction sigAct, oldSigAct; |
666e6ce3976c
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parents:
diff
changeset
|
1705 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1706 sigfillset(&(sigAct.sa_mask)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1707 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1708 // Do not block out synchronous signals in the signal handler. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1709 // Blocking synchronous signals only makes sense if you can really |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1710 // be sure that those signals won't happen during signal handling, |
666e6ce3976c
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parents:
diff
changeset
|
1711 // when the blocking applies. Normal signal handlers are lean and |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1712 // do not cause signals. But our signal handlers tend to be "risky" |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1713 // - secondary SIGSEGV, SIGILL, SIGBUS' may and do happen. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1714 // On AIX, PASE there was a case where a SIGSEGV happened, followed |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1715 // by a SIGILL, which was blocked due to the signal mask. The process |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1716 // just hung forever. Better to crash from a secondary signal than to hang. |
666e6ce3976c
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parents:
diff
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|
1717 sigdelset(&(sigAct.sa_mask), SIGSEGV); |
666e6ce3976c
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parents:
diff
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|
1718 sigdelset(&(sigAct.sa_mask), SIGBUS); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1719 sigdelset(&(sigAct.sa_mask), SIGILL); |
666e6ce3976c
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diff
changeset
|
1720 sigdelset(&(sigAct.sa_mask), SIGFPE); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
1721 sigdelset(&(sigAct.sa_mask), SIGTRAP); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1722 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1723 sigAct.sa_flags = SA_RESTART|SA_SIGINFO; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1724 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1725 sigAct.sa_handler = CAST_TO_FN_PTR(sa_handler_t, handler); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1726 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1727 if (sigaction(signal_number, &sigAct, &oldSigAct)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1728 // -1 means registration failed |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1729 return (void *)-1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1730 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1731 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1732 return CAST_FROM_FN_PTR(void*, oldSigAct.sa_handler); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1733 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1734 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1735 void os::signal_raise(int signal_number) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1736 ::raise(signal_number); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1737 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1738 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1739 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1740 // The following code is moved from os.cpp for making this |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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|
1741 // code platform specific, which it is by its very nature. |
666e6ce3976c
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diff
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|
1742 // |
666e6ce3976c
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diff
changeset
|
1743 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1744 // Will be modified when max signal is changed to be dynamic |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1745 int os::sigexitnum_pd() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1746 return NSIG; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1747 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1748 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1749 // a counter for each possible signal value |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1750 static volatile jint pending_signals[NSIG+1] = { 0 }; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1751 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1752 // Linux(POSIX) specific hand shaking semaphore. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1753 static sem_t sig_sem; |
666e6ce3976c
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parents:
diff
changeset
|
1754 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1755 void os::signal_init_pd() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1756 // Initialize signal structures |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1757 ::memset((void*)pending_signals, 0, sizeof(pending_signals)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
1758 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1759 // Initialize signal semaphore |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1760 int rc = ::sem_init(&sig_sem, 0, 0); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1761 guarantee(rc != -1, "sem_init failed"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1762 } |
666e6ce3976c
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parents:
diff
changeset
|
1763 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1764 void os::signal_notify(int sig) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1765 Atomic::inc(&pending_signals[sig]); |
666e6ce3976c
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diff
changeset
|
1766 ::sem_post(&sig_sem); |
666e6ce3976c
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diff
changeset
|
1767 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
1768 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
1769 static int check_pending_signals(bool wait) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
1770 Atomic::store(0, &sigint_count); |
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1771 for (;;) { |
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1772 for (int i = 0; i < NSIG + 1; i++) { |
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1773 jint n = pending_signals[i]; |
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1774 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { |
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1775 return i; |
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|
1776 } |
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1777 } |
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1778 if (!wait) { |
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1779 return -1; |
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|
1780 } |
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1781 JavaThread *thread = JavaThread::current(); |
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1782 ThreadBlockInVM tbivm(thread); |
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1783 |
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1784 bool threadIsSuspended; |
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1785 do { |
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1786 thread->set_suspend_equivalent(); |
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1787 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() |
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1788 |
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1789 ::sem_wait(&sig_sem); |
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1790 |
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1791 // were we externally suspended while we were waiting? |
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1792 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); |
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1793 if (threadIsSuspended) { |
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1794 // |
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1795 // The semaphore has been incremented, but while we were waiting |
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1796 // another thread suspended us. We don't want to continue running |
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1797 // while suspended because that would surprise the thread that |
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1798 // suspended us. |
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1799 // |
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1800 ::sem_post(&sig_sem); |
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1801 |
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1802 thread->java_suspend_self(); |
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1803 } |
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1804 } while (threadIsSuspended); |
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1805 } |
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1806 } |
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1807 |
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1808 int os::signal_lookup() { |
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1809 return check_pending_signals(false); |
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1810 } |
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1811 |
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1812 int os::signal_wait() { |
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1813 return check_pending_signals(true); |
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1814 } |
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1815 |
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1816 //////////////////////////////////////////////////////////////////////////////// |
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1817 // Virtual Memory |
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1818 |
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1819 // AddrRange describes an immutable address range |
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1820 // |
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1821 // This is a helper class for the 'shared memory bookkeeping' below. |
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1822 class AddrRange { |
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1823 friend class ShmBkBlock; |
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1824 |
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1825 char* _start; |
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1826 size_t _size; |
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|
1827 |
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1828 public: |
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|
1829 |
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1830 AddrRange(char* start, size_t size) |
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1831 : _start(start), _size(size) |
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1832 {} |
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|
1833 |
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1834 AddrRange(const AddrRange& r) |
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1835 : _start(r.start()), _size(r.size()) |
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1836 {} |
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|
1837 |
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1838 char* start() const { return _start; } |
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1839 size_t size() const { return _size; } |
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1840 char* end() const { return _start + _size; } |
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1841 bool is_empty() const { return _size == 0 ? true : false; } |
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1842 |
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1843 static AddrRange empty_range() { return AddrRange(NULL, 0); } |
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1844 |
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1845 bool contains(const char* p) const { |
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1846 return start() <= p && end() > p; |
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|
1847 } |
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|
1848 |
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|
1849 bool contains(const AddrRange& range) const { |
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1850 return start() <= range.start() && end() >= range.end(); |
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|
1851 } |
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|
1852 |
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1853 bool intersects(const AddrRange& range) const { |
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1854 return (range.start() <= start() && range.end() > start()) || |
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1855 (range.start() < end() && range.end() >= end()) || |
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|
1856 contains(range); |
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|
1857 } |
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|
1858 |
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|
1859 bool is_same_range(const AddrRange& range) const { |
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1860 return start() == range.start() && size() == range.size(); |
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|
1861 } |
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|
1862 |
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|
1863 // return the closest inside range consisting of whole pages |
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|
1864 AddrRange find_closest_aligned_range(size_t pagesize) const { |
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1865 if (pagesize == 0 || is_empty()) { |
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|
1866 return empty_range(); |
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|
1867 } |
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|
1868 char* const from = (char*)align_size_up((intptr_t)_start, pagesize); |
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1869 char* const to = (char*)align_size_down((intptr_t)end(), pagesize); |
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1870 if (from > to) { |
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|
1871 return empty_range(); |
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|
1872 } |
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|
1873 return AddrRange(from, to - from); |
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|
1874 } |
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|
1875 }; |
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|
1876 |
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|
1877 //////////////////////////////////////////////////////////////////////////// |
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|
1878 // shared memory bookkeeping |
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|
1879 // |
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1880 // the os::reserve_memory() API and friends hand out different kind of memory, depending |
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1881 // on need and circumstances. Memory may be allocated with mmap() or with shmget/shmat. |
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1882 // |
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1883 // But these memory types have to be treated differently. For example, to uncommit |
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1884 // mmap-based memory, msync(MS_INVALIDATE) is needed, to uncommit shmat-based memory, |
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|
1885 // disclaim64() is needed. |
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|
1886 // |
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1887 // Therefore we need to keep track of the allocated memory segments and their |
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|
1888 // properties. |
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|
1889 |
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1890 // ShmBkBlock: base class for all blocks in the shared memory bookkeeping |
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|
1891 class ShmBkBlock { |
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|
1892 |
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|
1893 ShmBkBlock* _next; |
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|
1894 |
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|
1895 protected: |
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|
1896 |
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|
1897 AddrRange _range; |
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|
1898 const size_t _pagesize; |
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|
1899 const bool _pinned; |
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1900 |
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1901 public: |
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1902 |
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1903 ShmBkBlock(AddrRange range, size_t pagesize, bool pinned) |
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1904 : _range(range), _pagesize(pagesize), _pinned(pinned) , _next(NULL) { |
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1905 |
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1906 assert(_pagesize == SIZE_4K || _pagesize == SIZE_64K || _pagesize == SIZE_16M, "invalid page size"); |
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1907 assert(!_range.is_empty(), "invalid range"); |
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1908 } |
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1909 |
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1910 virtual void print(outputStream* st) const { |
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1911 st->print("0x%p ... 0x%p (%llu) - %d %s pages - %s", |
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1912 _range.start(), _range.end(), _range.size(), |
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1913 _range.size() / _pagesize, describe_pagesize(_pagesize), |
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1914 _pinned ? "pinned" : ""); |
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1915 } |
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1916 |
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1917 enum Type { MMAP, SHMAT }; |
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1918 virtual Type getType() = 0; |
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1919 |
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1920 char* base() const { return _range.start(); } |
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1921 size_t size() const { return _range.size(); } |
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1922 |
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1923 void setAddrRange(AddrRange range) { |
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1924 _range = range; |
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1925 } |
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1926 |
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1927 bool containsAddress(const char* p) const { |
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1928 return _range.contains(p); |
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1929 } |
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1930 |
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1931 bool containsRange(const char* p, size_t size) const { |
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1932 return _range.contains(AddrRange((char*)p, size)); |
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1933 } |
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1934 |
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1935 bool isSameRange(const char* p, size_t size) const { |
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1936 return _range.is_same_range(AddrRange((char*)p, size)); |
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1937 } |
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1938 |
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1939 virtual bool disclaim(char* p, size_t size) = 0; |
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1940 virtual bool release() = 0; |
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1941 |
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1942 // blocks live in a list. |
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1943 ShmBkBlock* next() const { return _next; } |
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1944 void set_next(ShmBkBlock* blk) { _next = blk; } |
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1945 |
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1946 }; // end: ShmBkBlock |
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1947 |
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1948 |
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1949 // ShmBkMappedBlock: describes an block allocated with mmap() |
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1950 class ShmBkMappedBlock : public ShmBkBlock { |
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1951 public: |
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1952 |
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1953 ShmBkMappedBlock(AddrRange range) |
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1954 : ShmBkBlock(range, SIZE_4K, false) {} // mmap: always 4K, never pinned |
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1955 |
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1956 void print(outputStream* st) const { |
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1957 ShmBkBlock::print(st); |
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1958 st->print_cr(" - mmap'ed"); |
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1959 } |
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1960 |
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1961 Type getType() { |
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1962 return MMAP; |
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1963 } |
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1964 |
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1965 bool disclaim(char* p, size_t size) { |
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1966 |
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1967 AddrRange r(p, size); |
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1968 |
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1969 guarantee(_range.contains(r), "invalid disclaim"); |
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1970 |
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1971 // only disclaim whole ranges. |
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1972 const AddrRange r2 = r.find_closest_aligned_range(_pagesize); |
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1973 if (r2.is_empty()) { |
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1974 return true; |
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1975 } |
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1976 |
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1977 const int rc = ::msync(r2.start(), r2.size(), MS_INVALIDATE); |
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1978 |
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1979 if (rc != 0) { |
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1980 warning("msync(0x%p, %llu, MS_INVALIDATE) failed (%d)\n", r2.start(), r2.size(), errno); |
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1981 } |
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1982 |
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1983 return rc == 0 ? true : false; |
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1984 } |
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1985 |
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1986 bool release() { |
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1987 // mmap'ed blocks are released using munmap |
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1988 if (::munmap(_range.start(), _range.size()) != 0) { |
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1989 warning("munmap(0x%p, %llu) failed (%d)\n", _range.start(), _range.size(), errno); |
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1990 return false; |
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1991 } |
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1992 return true; |
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1993 } |
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1994 }; // end: ShmBkMappedBlock |
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1995 |
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1996 // ShmBkShmatedBlock: describes an block allocated with shmget/shmat() |
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1997 class ShmBkShmatedBlock : public ShmBkBlock { |
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1998 public: |
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1999 |
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2000 ShmBkShmatedBlock(AddrRange range, size_t pagesize, bool pinned) |
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2001 : ShmBkBlock(range, pagesize, pinned) {} |
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2002 |
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2003 void print(outputStream* st) const { |
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2004 ShmBkBlock::print(st); |
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2005 st->print_cr(" - shmat'ed"); |
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2006 } |
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2007 |
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2008 Type getType() { |
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2009 return SHMAT; |
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2010 } |
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2011 |
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2012 bool disclaim(char* p, size_t size) { |
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2013 |
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2014 AddrRange r(p, size); |
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2015 |
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2016 if (_pinned) { |
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2017 return true; |
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2018 } |
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2019 |
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2020 // shmat'ed blocks are disclaimed using disclaim64 |
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2021 guarantee(_range.contains(r), "invalid disclaim"); |
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2022 |
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2023 // only disclaim whole ranges. |
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2024 const AddrRange r2 = r.find_closest_aligned_range(_pagesize); |
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2025 if (r2.is_empty()) { |
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2026 return true; |
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2027 } |
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2028 |
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|
2029 const bool rc = my_disclaim64(r2.start(), r2.size()); |
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diff
changeset
|
2030 |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2031 if (Verbose && !rc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2032 warning("failed to disclaim shm %p-%p\n", r2.start(), r2.end()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2033 } |
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simonis
parents:
diff
changeset
|
2034 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2035 return rc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2036 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2037 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2038 bool release() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2039 bool rc = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2040 if (::shmdt(_range.start()) != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2041 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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parents:
diff
changeset
|
2042 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2043 rc = true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2044 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2045 return rc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2046 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2047 |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2048 }; // end: ShmBkShmatedBlock |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2049 |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2050 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
|
2051 static volatile jint g_shmbk_table_lock = 0; |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2052 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2053 // keep some usage statistics |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2054 static struct { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2055 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
|
2056 size_t bytes; // reserved - not committed - bytes. |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2057 int reserves; // how often reserve was called |
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diff
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|
2058 int lookups; // how often a lookup was made |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
2059 } g_shmbk_stats = { 0, 0, 0, 0 }; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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|
2060 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2061 // add information about a shared memory segment to the bookkeeping |
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parents:
diff
changeset
|
2062 static void shmbk_register(ShmBkBlock* p_block) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2063 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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|
2064 p_block->set_next(g_shmbk_list); |
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diff
changeset
|
2065 g_shmbk_list = p_block; |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
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|
2066 g_shmbk_stats.reserves ++; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
2067 g_shmbk_stats.bytes += p_block->size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2068 g_shmbk_stats.nodes ++; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2069 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2070 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2071 // remove information about a shared memory segment by its starting address |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2072 static void shmbk_unregister(ShmBkBlock* p_block) { |
666e6ce3976c
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simonis
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diff
changeset
|
2073 ShmBkBlock* p = g_shmbk_list; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2074 ShmBkBlock* prev = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2075 while (p) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2076 if (p == p_block) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2077 if (prev) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2078 prev->set_next(p->next()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2079 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2080 g_shmbk_list = p->next(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2081 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2082 g_shmbk_stats.nodes --; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2083 g_shmbk_stats.bytes -= p->size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2084 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2085 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2086 prev = p; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2087 p = p->next(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2088 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2089 assert(false, "should not happen"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2090 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2091 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2092 // 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
|
2093 // 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
|
2094 static ShmBkBlock* shmbk_find_by_containing_address(const char* addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2095 g_shmbk_stats.lookups ++; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2096 ShmBkBlock* p = g_shmbk_list; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2097 while (p) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2098 if (p->containsAddress(addr)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2099 return p; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2100 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2101 p = p->next(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2102 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2103 return NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2104 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2105 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2106 // 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
|
2107 void shmbk_dump_info() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2108 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
|
2109 "total reserves: %d total lookups: %d)", |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2110 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
|
2111 const ShmBkBlock* p = g_shmbk_list; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2112 int i = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2113 while (p) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2114 p->print(tty); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2115 p = p->next(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2116 i ++; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2117 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2118 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2119 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2120 #define LOCK_SHMBK { ThreadCritical _LOCK_SHMBK; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2121 #define UNLOCK_SHMBK } |
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 // End: shared memory bookkeeping |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2126 int os::vm_page_size() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2127 // Seems redundant as all get out |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2128 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
|
2129 return os::Aix::page_size(); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2132 // Aix allocates memory by pages. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2133 int os::vm_allocation_granularity() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2134 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
|
2135 return os::Aix::page_size(); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2138 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
|
2139 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2140 // Commit is a noop. There is no explicit commit |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2141 // needed on AIX. Memory is committed when touched. |
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 // Debug : check address range for validity |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2144 #ifdef ASSERT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2145 LOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2146 ShmBkBlock* const block = shmbk_find_by_containing_address(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2147 if (!block) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2148 fprintf(stderr, "invalid pointer: " INTPTR_FORMAT "\n", addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2149 shmbk_dump_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2150 assert(false, "invalid pointer"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2151 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2152 } else if (!block->containsRange(addr, size)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2153 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
|
2154 shmbk_dump_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2155 assert(false, "invalid range"); |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2158 UNLOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2159 #endif // ASSERT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2160 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2161 return 0; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2164 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
|
2165 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
|
2166 } |
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 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
|
2169 const char* mesg) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2170 assert(mesg != NULL, "mesg must be specified"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2171 os::Aix::commit_memory_impl(addr, size, exec); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2174 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
|
2175 size_t alignment_hint, bool exec) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2176 return 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 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
|
2180 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, alignment_hint, exec) == 0; |
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 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
|
2185 size_t alignment_hint, bool exec, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2186 const char* mesg) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2187 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
|
2188 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2189 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2190 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
|
2191 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2192 // 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
|
2193 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2194 bool rc = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2195 LOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2196 ShmBkBlock* const block = shmbk_find_by_containing_address(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2197 if (!block) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2198 fprintf(stderr, "invalid pointer: 0x%p.\n", addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2199 shmbk_dump_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2200 assert(false, "invalid pointer"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2201 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2202 } else if (!block->containsRange(addr, size)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2203 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
|
2204 shmbk_dump_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2205 assert(false, "invalid range"); |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2208 rc = block->disclaim(addr, size); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2209 UNLOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2210 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2211 if (Verbose && !rc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2212 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
|
2213 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2214 return rc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2215 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2216 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2217 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
|
2218 return os::guard_memory(addr, size); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2219 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2220 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2221 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
|
2222 return os::unguard_memory(addr, size); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2223 } |
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 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
|
2226 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2227 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2228 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
|
2229 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2230 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2231 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
|
2232 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2233 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2234 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
|
2235 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2236 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2237 bool os::numa_topology_changed() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2238 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2239 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2240 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2241 size_t os::numa_get_groups_num() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2242 return 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2243 } |
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 int os::numa_get_group_id() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2246 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2247 } |
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 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
|
2250 if (size > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2251 ids[0] = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2252 return 1; |
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 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2255 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2256 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2257 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
|
2258 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2259 } |
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 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
|
2262 return end; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2263 } |
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 // Flags for reserve_shmatted_memory: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2266 #define RESSHM_WISHADDR_OR_FAIL 1 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2267 #define RESSHM_TRY_16M_PAGES 2 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2268 #define RESSHM_16M_PAGES_OR_FAIL 4 |
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 // Result of reserve_shmatted_memory: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2271 struct shmatted_memory_info_t { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2272 char* addr; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2273 size_t pagesize; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2274 bool pinned; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2275 }; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2276 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2277 // Reserve a section of shmatted memory. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2278 // params: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2279 // bytes [in]: size of memory, in bytes |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2280 // requested_addr [in]: wish address. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2281 // NULL = no wish. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2282 // If RESSHM_WISHADDR_OR_FAIL is set in flags and wish address cannot |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2283 // 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
|
2284 // another pointer is returned. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2285 // flags [in]: some flags. Valid flags are: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2286 // RESSHM_WISHADDR_OR_FAIL - fail if wish address is given and cannot be obtained. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2287 // RESSHM_TRY_16M_PAGES - try to allocate from 16M page pool |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2288 // (requires UseLargePages and Use16MPages) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2289 // RESSHM_16M_PAGES_OR_FAIL - if you cannot allocate from 16M page pool, fail. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2290 // Otherwise any other page size will do. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2291 // p_info [out] : holds information about the created shared memory segment. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2292 static bool reserve_shmatted_memory(size_t bytes, char* requested_addr, int flags, shmatted_memory_info_t* p_info) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2293 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2294 assert(p_info, "parameter error"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2295 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2296 // init output struct. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2297 p_info->addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2298 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2299 // neither should we be here for EXTSHM=ON. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2300 if (os::Aix::extshm()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2301 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2302 } |
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
simonis
parents:
diff
changeset
|
2304 // extract flags. sanity checks. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2305 const bool wishaddr_or_fail = |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2306 flags & RESSHM_WISHADDR_OR_FAIL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2307 const bool try_16M_pages = |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2308 flags & RESSHM_TRY_16M_PAGES; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2309 const bool f16M_pages_or_fail = |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2310 flags & RESSHM_16M_PAGES_OR_FAIL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2311 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2312 // 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
|
2313 // 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
|
2314 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
|
2315 if (wishaddr_or_fail) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2316 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2317 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2318 requested_addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2319 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2320 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2321 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2322 char* addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2323 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2324 // 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
|
2325 // pagesize dynamically. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2326 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
|
2327 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2328 // reserve the shared segment |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2329 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
|
2330 if (shmid == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2331 warning("shmget(.., %lld, ..) failed (errno: %d).", size, errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2332 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2333 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2334 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2335 // Important note: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2336 // 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
|
2337 // 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
|
2338 // survive the process. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2339 // 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
|
2340 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2341 // try forcing the page size |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2342 size_t pagesize = -1; // unknown so far |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2343 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2344 if (UseLargePages) { |
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 struct shmid_ds shmbuf; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2347 memset(&shmbuf, 0, sizeof(shmbuf)); |
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 // First, try to take from 16M page pool if... |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2350 if (os::Aix::can_use_16M_pages() // we can ... |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2351 && 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
|
2352 && try_16M_pages) { // caller wants us to. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2353 shmbuf.shm_pagesize = SIZE_16M; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2354 if (shmctl(shmid, SHM_PAGESIZE, &shmbuf) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2355 pagesize = SIZE_16M; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2356 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2357 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
|
2358 size / SIZE_16M, errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2359 if (f16M_pages_or_fail) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2360 goto cleanup_shm; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2361 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2362 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2363 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2364 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2365 // 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
|
2366 // because the 64K page pool may also be exhausted. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2367 if (pagesize == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2368 shmbuf.shm_pagesize = SIZE_64K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2369 if (shmctl(shmid, SHM_PAGESIZE, &shmbuf) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2370 pagesize = SIZE_64K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2371 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2372 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
|
2373 size / SIZE_64K, errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2374 // 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
|
2375 // 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
|
2376 // from 4K if LDR_CNTRL SHM_PSIZE is set) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2377 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2378 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2379 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2380 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2381 // sanity point |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2382 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
|
2383 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2384 // Now attach the shared segment. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2385 addr = (char*) shmat(shmid, requested_addr, 0); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2386 if (addr == (char*)-1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2387 // How to handle attach failure: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2388 // 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
|
2389 // mandatory, fail, if not, retry anywhere. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2390 // 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
|
2391 addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2392 if (requested_addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2393 if (wishaddr_or_fail) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2394 goto cleanup_shm; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2395 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2396 addr = (char*) shmat(shmid, NULL, 0); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2397 if (addr == (char*)-1) { // fatal |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2398 addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2399 warning("shmat failed (errno: %d)", errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2400 goto cleanup_shm; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2401 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2402 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2403 } else { // fatal |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2404 addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2405 warning("shmat failed (errno: %d)", errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2406 goto cleanup_shm; |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2409 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2410 // sanity point |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2411 assert(addr && addr != (char*) -1, "wrong address"); |
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 // after successful Attach remove the segment - right away. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2414 if (::shmctl(shmid, IPC_RMID, NULL) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2415 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
|
2416 guarantee(false, "failed to remove shared memory segment!"); |
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 shmid = -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2419 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2420 // 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
|
2421 // 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
|
2422 { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2423 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
|
2424 if (pagesize != -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2425 assert(pagesize == real_pagesize, "unexpected pagesize after shmat"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2426 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2427 pagesize = real_pagesize; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2428 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2429 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2430 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2431 // Now register the reserved block with internal book keeping. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2432 LOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2433 const bool pinned = pagesize >= SIZE_16M ? true : false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2434 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
|
2435 assert(p_block, ""); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2436 shmbk_register(p_block); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2437 UNLOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2438 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2439 cleanup_shm: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2440 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2441 // 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
|
2442 if (shmid != -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2443 if (::shmctl(shmid, IPC_RMID, NULL) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2444 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
|
2445 guarantee(false, "failed to remove shared memory segment!"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2446 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2447 shmid = -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2448 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2449 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2450 // trace |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2451 if (Verbose && !addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2452 if (requested_addr != NULL) { |
14451 | 2453 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
|
2454 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2455 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
|
2456 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2457 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2458 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2459 // hand info to caller |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2460 if (addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2461 p_info->addr = addr; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2462 p_info->pagesize = pagesize; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2463 p_info->pinned = pagesize == SIZE_16M ? true : false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2464 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2465 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2466 // sanity test: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2467 if (requested_addr && addr && wishaddr_or_fail) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2468 guarantee(addr == requested_addr, "shmat error"); |
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 // 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
|
2472 guarantee(shmid == -1, "dangling shm segments"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2473 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2474 return addr ? true : false; |
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 } // end: reserve_shmatted_memory |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2477 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2478 // 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
|
2479 // will return NULL in case of an error. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2480 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
|
2481 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2482 // 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
|
2483 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
|
2484 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
|
2485 return NULL; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2488 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
|
2489 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2490 // 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
|
2491 // msync(MS_INVALIDATE) (see os::uncommit_memory) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2492 int flags = MAP_ANONYMOUS | MAP_SHARED; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2493 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2494 // 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
|
2495 // 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
|
2496 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2497 // 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
|
2498 // 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
|
2499 // 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
|
2500 // 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
|
2501 // testing. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2502 if (requested_addr != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2503 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
|
2504 flags |= MAP_FIXED; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2505 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2506 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2507 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
|
2508 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2509 if (addr == MAP_FAILED) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2510 // 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
|
2511 // anywhere is a fatal error. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2512 if (requested_addr == NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2513 // 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
|
2514 warning("mmap(NULL, 0x%llX, ..) failed (%d)", size, errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2515 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2516 addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2517 goto cleanup_mmap; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2518 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2519 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2520 // If 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
|
2521 if (addr && requested_addr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2522 guarantee(addr == requested_addr, "unexpected"); |
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 // register this mmap'ed segment with book keeping |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2526 LOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2527 ShmBkMappedBlock* const p_block = new ShmBkMappedBlock(AddrRange(addr, size)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2528 assert(p_block, ""); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2529 shmbk_register(p_block); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2530 UNLOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2531 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2532 cleanup_mmap: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2533 |
14451 | 2534 // trace |
2535 if (Verbose) { | |
2536 if (addr) { | |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
2537 fprintf(stderr, "mmap-allocated 0x%p .. 0x%p (0x%llX bytes)\n", addr, addr + bytes, bytes); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2538 } |
14451 | 2539 else { |
2540 if (requested_addr != NULL) { | |
2541 warning("failed to mmap-allocate 0x%llX bytes at wish address 0x%p.", bytes, requested_addr); | |
2542 } else { | |
2543 warning("failed to mmap-allocate 0x%llX bytes at any address.", bytes); | |
2544 } | |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2545 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2546 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2547 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2548 return addr; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2549 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2550 } // end: reserve_mmaped_memory |
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 // Reserves and attaches a shared memory segment. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2553 // Will assert if a wish address is given and could not be obtained. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2554 char* os::pd_reserve_memory(size_t bytes, char* requested_addr, size_t alignment_hint) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2555 return os::attempt_reserve_memory_at(bytes, requested_addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2556 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2557 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2558 bool os::pd_release_memory(char* addr, size_t size) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2559 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2560 // 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
|
2561 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2562 bool rc = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2563 LOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2564 ShmBkBlock* const block = shmbk_find_by_containing_address(addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2565 if (!block) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2566 fprintf(stderr, "invalid pointer: 0x%p.\n", addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2567 shmbk_dump_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2568 assert(false, "invalid pointer"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2569 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2570 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2571 else if (!block->isSameRange(addr, size)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2572 if (block->getType() == ShmBkBlock::MMAP) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2573 // Release only the same range or a the beginning or the end of a range. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2574 if (block->base() == addr && size < block->size()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2575 ShmBkMappedBlock* const b = new ShmBkMappedBlock(AddrRange(block->base() + size, block->size() - size)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2576 assert(b, ""); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2577 shmbk_register(b); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2578 block->setAddrRange(AddrRange(addr, size)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2579 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2580 else if (addr > block->base() && addr + size == block->base() + block->size()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2581 ShmBkMappedBlock* const b = new ShmBkMappedBlock(AddrRange(block->base(), block->size() - size)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2582 assert(b, ""); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2583 shmbk_register(b); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2584 block->setAddrRange(AddrRange(addr, size)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2585 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2586 else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2587 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
|
2588 shmbk_dump_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2589 assert(false, "invalid mmap range"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2590 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2591 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2592 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2593 else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2594 // Release only the same range. No partial release allowed. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2595 // Soften the requirement a bit, because the user may think he owns a smaller size |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2596 // than the block is due to alignment etc. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2597 if (block->base() != addr || block->size() < size) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2598 fprintf(stderr, "invalid shmget range: 0x%p .. 0x%p.\n", addr, addr + size); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2599 shmbk_dump_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2600 assert(false, "invalid shmget range"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2601 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2602 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2603 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2604 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2605 rc = block->release(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2606 assert(rc, "release failed"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2607 // remove block from bookkeeping |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2608 shmbk_unregister(block); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2609 delete block; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2610 UNLOCK_SHMBK |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2611 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2612 if (!rc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2613 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
|
2614 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2615 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2616 return rc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2617 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2618 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2619 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
|
2620 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2621 // 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
|
2622 // 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
|
2623 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2624 // This means if the memory was allocated using shmget/shmat, protection wont work |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2625 // but mprotect will still return 0: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2626 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2627 // See http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.basetechref/doc/basetrf1/mprotect.htm |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2628 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2629 bool rc = ::mprotect(addr, size, prot) == 0 ? true : false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2630 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2631 if (!rc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2632 const char* const s_errno = strerror(errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2633 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
|
2634 return 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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2637 // mprotect success check |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2638 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2639 // 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
|
2640 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2641 // 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
|
2642 // 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
|
2643 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2644 if (!os::Aix::xpg_sus_mode()) { |
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
simonis
parents:
diff
changeset
|
2646 if (StubRoutines::SafeFetch32_stub()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2647 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2648 const bool read_protected = |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2649 (SafeFetch32((int*)addr, 0x12345678) == 0x12345678 && |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2650 SafeFetch32((int*)addr, 0x76543210) == 0x76543210) ? true : false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2651 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2652 if (prot & PROT_READ) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2653 rc = !read_protected; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2654 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2655 rc = read_protected; |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2658 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2659 if (!rc) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2660 assert(false, "mprotect failed."); |
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 return rc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2663 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2664 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2665 // Set protections specified |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2666 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
|
2667 unsigned int p = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2668 switch (prot) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2669 case MEM_PROT_NONE: p = PROT_NONE; break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2670 case MEM_PROT_READ: p = PROT_READ; break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2671 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
|
2672 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
|
2673 default: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2674 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2675 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2676 // is_committed is unused. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2677 return checked_mprotect(addr, size, p); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2678 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2679 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2680 bool os::guard_memory(char* addr, size_t size) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2681 return checked_mprotect(addr, size, PROT_NONE); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2682 } |
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 bool os::unguard_memory(char* addr, size_t size) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2685 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
|
2686 } |
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 // Large page support |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2689 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2690 static size_t _large_page_size = 0; |
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 // Enable large page support if OS allows that. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2693 void os::large_page_init() { |
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 // Note: os::Aix::query_multipage_support must run first. |
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 if (!UseLargePages) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2698 return; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2701 if (!Aix::can_use_64K_pages()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2702 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
|
2703 UseLargePages = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2704 return; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2707 if (!Aix::can_use_16M_pages() && Use16MPages) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2708 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
|
2709 " 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
|
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 // 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
|
2713 // 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
|
2714 // alignment the garbage collector calculates with, slightly increasing |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2715 // 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
|
2716 // use 16M pages. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2717 if (Use16MPages && Aix::can_use_16M_pages()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2718 _large_page_size = SIZE_16M; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2719 _page_sizes[0] = SIZE_16M; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2720 _page_sizes[1] = SIZE_64K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2721 _page_sizes[2] = SIZE_4K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2722 _page_sizes[3] = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2723 } else if (Aix::can_use_64K_pages()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2724 _large_page_size = SIZE_64K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2725 _page_sizes[0] = SIZE_64K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2726 _page_sizes[1] = SIZE_4K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2727 _page_sizes[2] = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2728 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2729 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2730 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2731 ("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
|
2732 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2733 } // end: os::large_page_init() |
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 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
|
2736 // "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
|
2737 // 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
|
2738 Unimplemented(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2739 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2740 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2741 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2742 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
|
2743 // 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
|
2744 Unimplemented(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2745 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2746 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2747 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2748 size_t os::large_page_size() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2749 return _large_page_size; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2750 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2751 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2752 bool os::can_commit_large_page_memory() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2753 // 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
|
2754 // 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
|
2755 return true; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2758 bool os::can_execute_large_page_memory() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2759 // We can do that |
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 // 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
|
2764 // available (and not reserved for something else). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2765 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
|
2766 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2767 bool use_mmap = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2768 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2769 // mmap: smaller graining, no large page support |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2770 // 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
|
2771 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2772 // 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
|
2773 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2774 if (!UseLargePages || bytes < SIZE_16M) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2775 use_mmap = true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2776 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2777 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2778 char* addr = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2779 if (use_mmap) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2780 addr = reserve_mmaped_memory(bytes, requested_addr); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2781 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2782 // 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
|
2783 shmatted_memory_info_t info; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2784 const int flags = RESSHM_WISHADDR_OR_FAIL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2785 if (reserve_shmatted_memory(bytes, requested_addr, flags, &info)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2786 addr = info.addr; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2787 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2788 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2789 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2790 return addr; |
666e6ce3976c
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diff
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|
2791 } |
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|
2792 |
666e6ce3976c
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|
2793 size_t os::read(int fd, void *buf, unsigned int nBytes) { |
666e6ce3976c
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|
2794 return ::read(fd, buf, nBytes); |
666e6ce3976c
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diff
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|
2795 } |
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parents:
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|
2796 |
14461
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
changeset
|
2797 void os::naked_short_sleep(jlong ms) { |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
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parents:
14451
diff
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|
2798 struct timespec req; |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
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parents:
14451
diff
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|
2799 |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
goetz
parents:
14451
diff
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|
2800 assert(ms < 1000, "Un-interruptable sleep, short time use only"); |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
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parents:
14451
diff
changeset
|
2801 req.tv_sec = 0; |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
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parents:
14451
diff
changeset
|
2802 if (ms > 0) { |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
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parents:
14451
diff
changeset
|
2803 req.tv_nsec = (ms % 1000) * 1000000; |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
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parents:
14451
diff
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|
2804 } |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
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parents:
14451
diff
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|
2805 else { |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
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parents:
14451
diff
changeset
|
2806 req.tv_nsec = 1; |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
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parents:
14451
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|
2807 } |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
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parents:
14451
diff
changeset
|
2808 |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
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parents:
14451
diff
changeset
|
2809 nanosleep(&req, NULL); |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
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parents:
14451
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|
2810 |
a13badbb8b8e
8034797: AIX: Fix os::naked_short_sleep() in os_aix.cpp after 8028280
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14451
diff
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|
2811 return; |
14415
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|
2812 } |
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|
2813 |
666e6ce3976c
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|
2814 // Sleep forever; naked call to OS-specific sleep; use with CAUTION |
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|
2815 void os::infinite_sleep() { |
666e6ce3976c
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|
2816 while (true) { // sleep forever ... |
666e6ce3976c
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|
2817 ::sleep(100); // ... 100 seconds at a time |
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|
2818 } |
666e6ce3976c
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|
2819 } |
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diff
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|
2820 |
666e6ce3976c
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diff
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|
2821 // Used to convert frequent JVM_Yield() to nops |
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|
2822 bool os::dont_yield() { |
666e6ce3976c
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parents:
diff
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|
2823 return DontYieldALot; |
666e6ce3976c
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parents:
diff
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|
2824 } |
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diff
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|
2825 |
666e6ce3976c
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parents:
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|
2826 void os::yield() { |
666e6ce3976c
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parents:
diff
changeset
|
2827 sched_yield(); |
666e6ce3976c
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parents:
diff
changeset
|
2828 } |
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diff
changeset
|
2829 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2830 os::YieldResult os::NakedYield() { sched_yield(); return os::YIELD_UNKNOWN; } |
666e6ce3976c
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|
2831 |
666e6ce3976c
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parents:
diff
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|
2832 void os::yield_all(int attempts) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2833 // Yields to all threads, including threads with lower priorities |
666e6ce3976c
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diff
changeset
|
2834 // Threads on Linux are all with same priority. The Solaris style |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2835 // os::yield_all() with nanosleep(1ms) is not necessary. |
666e6ce3976c
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simonis
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diff
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|
2836 sched_yield(); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
2837 } |
666e6ce3976c
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simonis
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diff
changeset
|
2838 |
666e6ce3976c
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simonis
parents:
diff
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|
2839 // Called from the tight loops to possibly influence time-sharing heuristics |
666e6ce3976c
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simonis
parents:
diff
changeset
|
2840 void os::loop_breaker(int attempts) { |
666e6ce3976c
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parents:
diff
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|
2841 os::yield_all(attempts); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
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|
2842 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
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|
2843 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
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|
2844 //////////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2845 // thread priority support |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2846 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2847 // From AIX manpage to pthread_setschedparam |
666e6ce3976c
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parents:
diff
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|
2848 // (see: http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp? |
666e6ce3976c
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diff
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|
2849 // topic=/com.ibm.aix.basetechref/doc/basetrf1/pthread_setschedparam.htm): |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2850 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
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|
2851 // "If schedpolicy is SCHED_OTHER, then sched_priority must be in the |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2852 // range from 40 to 80, where 40 is the least favored priority and 80 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2853 // is the most favored." |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2854 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2855 // (Actually, I doubt this even has an impact on AIX, as we do kernel |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2856 // scheduling there; however, this still leaves iSeries.) |
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
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parents:
diff
changeset
|
2858 // We use the same values for AIX and PASE. |
666e6ce3976c
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simonis
parents:
diff
changeset
|
2859 int os::java_to_os_priority[CriticalPriority + 1] = { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
2860 54, // 0 Entry should never be used |
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 55, // 1 MinPriority |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2863 55, // 2 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
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|
2864 56, // 3 |
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 56, // 4 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2867 57, // 5 NormPriority |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2868 57, // 6 |
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 58, // 7 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2871 58, // 8 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2872 59, // 9 NearMaxPriority |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2873 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2874 60, // 10 MaxPriority |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2875 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2876 60 // 11 CriticalPriority |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2879 OSReturn os::set_native_priority(Thread* thread, int newpri) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2880 if (!UseThreadPriorities) return OS_OK; |
666e6ce3976c
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diff
changeset
|
2881 pthread_t thr = thread->osthread()->pthread_id(); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
2882 int policy = SCHED_OTHER; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2883 struct sched_param param; |
666e6ce3976c
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diff
changeset
|
2884 param.sched_priority = newpri; |
666e6ce3976c
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diff
changeset
|
2885 int ret = pthread_setschedparam(thr, policy, ¶m); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
2886 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2887 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2888 if (ret == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2889 fprintf(stderr, "changed priority of thread %d to %d\n", (int)thr, newpri); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
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diff
changeset
|
2890 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2891 fprintf(stderr, "Could not changed priority for thread %d to %d (error %d, %s)\n", |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2892 (int)thr, newpri, ret, strerror(ret)); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
2893 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2894 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2895 return (ret == 0) ? OS_OK : OS_ERR; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2896 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
2897 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2898 OSReturn os::get_native_priority(const Thread* const thread, int *priority_ptr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2899 if (!UseThreadPriorities) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2900 *priority_ptr = java_to_os_priority[NormPriority]; |
666e6ce3976c
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parents:
diff
changeset
|
2901 return OS_OK; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2902 } |
666e6ce3976c
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parents:
diff
changeset
|
2903 pthread_t thr = thread->osthread()->pthread_id(); |
666e6ce3976c
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parents:
diff
changeset
|
2904 int policy = SCHED_OTHER; |
666e6ce3976c
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parents:
diff
changeset
|
2905 struct sched_param param; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
2906 int ret = pthread_getschedparam(thr, &policy, ¶m); |
666e6ce3976c
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diff
changeset
|
2907 *priority_ptr = param.sched_priority; |
666e6ce3976c
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diff
changeset
|
2908 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2909 return (ret == 0) ? OS_OK : OS_ERR; |
666e6ce3976c
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parents:
diff
changeset
|
2910 } |
666e6ce3976c
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diff
changeset
|
2911 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
2912 // Hint to the underlying OS that a task switch would not be good. |
666e6ce3976c
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diff
changeset
|
2913 // Void return because it's a hint and can fail. |
666e6ce3976c
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parents:
diff
changeset
|
2914 void os::hint_no_preempt() {} |
666e6ce3976c
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parents:
diff
changeset
|
2915 |
666e6ce3976c
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2916 //////////////////////////////////////////////////////////////////////////////// |
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2917 // suspend/resume support |
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2918 |
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2919 // the low-level signal-based suspend/resume support is a remnant from the |
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2920 // old VM-suspension that used to be for java-suspension, safepoints etc, |
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2921 // within hotspot. Now there is a single use-case for this: |
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2922 // - calling get_thread_pc() on the VMThread by the flat-profiler task |
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2923 // that runs in the watcher thread. |
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2924 // The remaining code is greatly simplified from the more general suspension |
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2925 // code that used to be used. |
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2926 // |
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2927 // The protocol is quite simple: |
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2928 // - suspend: |
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2929 // - sends a signal to the target thread |
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2930 // - polls the suspend state of the osthread using a yield loop |
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2931 // - target thread signal handler (SR_handler) sets suspend state |
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2932 // and blocks in sigsuspend until continued |
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2933 // - resume: |
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2934 // - sets target osthread state to continue |
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2935 // - sends signal to end the sigsuspend loop in the SR_handler |
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2936 // |
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2937 // Note that the SR_lock plays no role in this suspend/resume protocol. |
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2938 // |
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2939 |
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2940 static void resume_clear_context(OSThread *osthread) { |
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2941 osthread->set_ucontext(NULL); |
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2942 osthread->set_siginfo(NULL); |
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2943 } |
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2944 |
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2945 static void suspend_save_context(OSThread *osthread, siginfo_t* siginfo, ucontext_t* context) { |
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2946 osthread->set_ucontext(context); |
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2947 osthread->set_siginfo(siginfo); |
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2948 } |
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2949 |
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2950 // |
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2951 // Handler function invoked when a thread's execution is suspended or |
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2952 // resumed. We have to be careful that only async-safe functions are |
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2953 // called here (Note: most pthread functions are not async safe and |
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2954 // should be avoided.) |
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2955 // |
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2956 // Note: sigwait() is a more natural fit than sigsuspend() from an |
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2957 // interface point of view, but sigwait() prevents the signal hander |
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2958 // from being run. libpthread would get very confused by not having |
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2959 // its signal handlers run and prevents sigwait()'s use with the |
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2960 // mutex granting granting signal. |
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2961 // |
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2962 // Currently only ever called on the VMThread and JavaThreads (PC sampling). |
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2963 // |
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2964 static void SR_handler(int sig, siginfo_t* siginfo, ucontext_t* context) { |
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2965 // Save and restore errno to avoid confusing native code with EINTR |
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2966 // after sigsuspend. |
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2967 int old_errno = errno; |
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|
2968 |
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2969 Thread* thread = Thread::current(); |
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2970 OSThread* osthread = thread->osthread(); |
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2971 assert(thread->is_VM_thread() || thread->is_Java_thread(), "Must be VMThread or JavaThread"); |
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2972 |
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2973 os::SuspendResume::State current = osthread->sr.state(); |
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2974 if (current == os::SuspendResume::SR_SUSPEND_REQUEST) { |
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2975 suspend_save_context(osthread, siginfo, context); |
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2976 |
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2977 // attempt to switch the state, we assume we had a SUSPEND_REQUEST |
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2978 os::SuspendResume::State state = osthread->sr.suspended(); |
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2979 if (state == os::SuspendResume::SR_SUSPENDED) { |
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2980 sigset_t suspend_set; // signals for sigsuspend() |
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|
2981 |
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2982 // get current set of blocked signals and unblock resume signal |
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2983 pthread_sigmask(SIG_BLOCK, NULL, &suspend_set); |
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2984 sigdelset(&suspend_set, SR_signum); |
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|
2985 |
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|
2986 // wait here until we are resumed |
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|
2987 while (1) { |
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|
2988 sigsuspend(&suspend_set); |
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|
2989 |
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|
2990 os::SuspendResume::State result = osthread->sr.running(); |
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2991 if (result == os::SuspendResume::SR_RUNNING) { |
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|
2992 break; |
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|
2993 } |
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|
2994 } |
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|
2995 |
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2996 } else if (state == os::SuspendResume::SR_RUNNING) { |
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2997 // request was cancelled, continue |
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|
2998 } else { |
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|
2999 ShouldNotReachHere(); |
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|
3000 } |
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|
3001 |
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|
3002 resume_clear_context(osthread); |
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|
3003 } else if (current == os::SuspendResume::SR_RUNNING) { |
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3004 // request was cancelled, continue |
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|
3005 } else if (current == os::SuspendResume::SR_WAKEUP_REQUEST) { |
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|
3006 // ignore |
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|
3007 } else { |
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|
3008 ShouldNotReachHere(); |
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|
3009 } |
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|
3010 |
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|
3011 errno = old_errno; |
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|
3012 } |
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|
3013 |
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|
3014 |
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|
3015 static int SR_initialize() { |
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|
3016 struct sigaction act; |
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|
3017 char *s; |
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|
3018 // Get signal number to use for suspend/resume |
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|
3019 if ((s = ::getenv("_JAVA_SR_SIGNUM")) != 0) { |
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|
3020 int sig = ::strtol(s, 0, 10); |
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3021 if (sig > 0 || sig < NSIG) { |
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|
3022 SR_signum = sig; |
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|
3023 } |
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|
3024 } |
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|
3025 |
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|
3026 assert(SR_signum > SIGSEGV && SR_signum > SIGBUS, |
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|
3027 "SR_signum must be greater than max(SIGSEGV, SIGBUS), see 4355769"); |
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|
3028 |
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|
3029 sigemptyset(&SR_sigset); |
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|
3030 sigaddset(&SR_sigset, SR_signum); |
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|
3031 |
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|
3032 // Set up signal handler for suspend/resume. |
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|
3033 act.sa_flags = SA_RESTART|SA_SIGINFO; |
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|
3034 act.sa_handler = (void (*)(int)) SR_handler; |
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|
3035 |
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|
3036 // SR_signum is blocked by default. |
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|
3037 // 4528190 - We also need to block pthread restart signal (32 on all |
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|
3038 // supported Linux platforms). Note that LinuxThreads need to block |
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|
3039 // this signal for all threads to work properly. So we don't have |
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|
3040 // 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
|
3041 pthread_sigmask(SIG_BLOCK, NULL, &act.sa_mask); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3042 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3043 if (sigaction(SR_signum, &act, 0) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3044 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3045 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3046 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3047 // Save signal flag |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3048 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
|
3049 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3050 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3051 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3052 static int SR_finalize() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3053 return 0; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3056 static int sr_notify(OSThread* osthread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3057 int status = pthread_kill(osthread->pthread_id(), SR_signum); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3058 assert_status(status == 0, status, "pthread_kill"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3059 return status; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3060 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3061 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3062 // "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
|
3063 // 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
|
3064 // 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
|
3065 static const int RANDOMLY_LARGE_INTEGER = 1000000; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3066 static const int RANDOMLY_LARGE_INTEGER2 = 100; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3067 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3068 // 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
|
3069 // but this seems the normal response to library errors |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3070 static bool do_suspend(OSThread* osthread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3071 assert(osthread->sr.is_running(), "thread should be running"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3072 // mark as suspended and send signal |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3073 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3074 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
|
3075 // failed to switch, state wasn't running? |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3076 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3077 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3078 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3079 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3080 if (sr_notify(osthread) != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3081 // try to cancel, switch to running |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3082 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3083 os::SuspendResume::State result = osthread->sr.cancel_suspend(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3084 if (result == os::SuspendResume::SR_RUNNING) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3085 // cancelled |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3086 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3087 } else if (result == os::SuspendResume::SR_SUSPENDED) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3088 // somehow managed to suspend |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3089 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3090 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3091 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3092 return false; |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3095 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3096 // 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
|
3097 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3098 for (int n = 0; !osthread->sr.is_suspended(); n++) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3099 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
|
3100 os::yield_all(i); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3101 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3102 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3103 // timeout, try to cancel the request |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3104 if (n >= RANDOMLY_LARGE_INTEGER) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3105 os::SuspendResume::State cancelled = osthread->sr.cancel_suspend(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3106 if (cancelled == os::SuspendResume::SR_RUNNING) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3107 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3108 } else if (cancelled == os::SuspendResume::SR_SUSPENDED) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3109 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3110 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3111 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3112 return false; |
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 } |
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 guarantee(osthread->sr.is_suspended(), "Must be suspended"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3118 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3119 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3120 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3121 static void do_resume(OSThread* osthread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3122 //assert(osthread->sr.is_suspended(), "thread should be suspended"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3123 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3124 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
|
3125 // failed to switch to WAKEUP_REQUEST |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3126 ShouldNotReachHere(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3127 return; |
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 while (!osthread->sr.is_running()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3131 if (sr_notify(osthread) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3132 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
|
3133 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
|
3134 os::yield_all(i); |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3137 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3138 ShouldNotReachHere(); |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3141 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3142 guarantee(osthread->sr.is_running(), "Must be running!"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3143 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3144 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3145 /////////////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3146 // signal handling (except suspend/resume) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3147 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3148 // 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
|
3149 // 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
|
3150 // routine, and if it returns true (non-zero), then the signal handler must |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3151 // return immediately. If the flag "abort_if_unrecognized" is true, then this |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3152 // routine will never retun false (zero), but instead will execute a VM panic |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3153 // routine kill the process. |
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 // If this routine returns false, it is OK to call it again. This allows |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3156 // the user-defined signal handler to perform checks either before or after |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3157 // the VM performs its own checks. Naturally, the user code would be making |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3158 // a serious error if it tried to handle an exception (such as a null check |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3159 // or breakpoint) that the VM was generating for its own correct operation. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3160 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3161 // This routine may recognize any of the following kinds of signals: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3162 // SIGBUS, SIGSEGV, SIGILL, SIGFPE, SIGQUIT, SIGPIPE, SIGXFSZ, SIGUSR1. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3163 // It should be consulted by handlers for any of those signals. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3164 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3165 // The caller of this routine must pass in the three arguments supplied |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
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3166 // to the function referred to in the "sa_sigaction" (not the "sa_handler") |
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3167 // field of the structure passed to sigaction(). This routine assumes that |
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3168 // the sa_flags field passed to sigaction() includes SA_SIGINFO and SA_RESTART. |
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|
3169 // |
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|
3170 // Note that the VM will print warnings if it detects conflicting signal |
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3171 // handlers, unless invoked with the option "-XX:+AllowUserSignalHandlers". |
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|
3172 // |
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|
3173 extern "C" JNIEXPORT int |
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|
3174 JVM_handle_aix_signal(int signo, siginfo_t* siginfo, void* ucontext, int abort_if_unrecognized); |
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|
3175 |
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|
3176 // Set thread signal mask (for some reason on AIX sigthreadmask() seems |
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|
3177 // to be the thing to call; documentation is not terribly clear about whether |
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3178 // pthread_sigmask also works, and if it does, whether it does the same. |
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3179 bool set_thread_signal_mask(int how, const sigset_t* set, sigset_t* oset) { |
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3180 const int rc = ::pthread_sigmask(how, set, oset); |
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3181 // return value semantics differ slightly for error case: |
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3182 // pthread_sigmask returns error number, sigthreadmask -1 and sets global errno |
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3183 // (so, pthread_sigmask is more theadsafe for error handling) |
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3184 // But success is always 0. |
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3185 return rc == 0 ? true : false; |
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|
3186 } |
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|
3187 |
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3188 // Function to unblock all signals which are, according |
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3189 // to POSIX, typical program error signals. If they happen while being blocked, |
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3190 // they typically will bring down the process immediately. |
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3191 bool unblock_program_error_signals() { |
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|
3192 sigset_t set; |
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3193 ::sigemptyset(&set); |
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3194 ::sigaddset(&set, SIGILL); |
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3195 ::sigaddset(&set, SIGBUS); |
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3196 ::sigaddset(&set, SIGFPE); |
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3197 ::sigaddset(&set, SIGSEGV); |
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3198 return set_thread_signal_mask(SIG_UNBLOCK, &set, NULL); |
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3199 } |
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|
3200 |
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3201 // Renamed from 'signalHandler' to avoid collision with other shared libs. |
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3202 void javaSignalHandler(int sig, siginfo_t* info, void* uc) { |
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3203 assert(info != NULL && uc != NULL, "it must be old kernel"); |
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3204 |
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|
3205 // Never leave program error signals blocked; |
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|
3206 // on all our platforms they would bring down the process immediately when |
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|
3207 // getting raised while being blocked. |
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|
3208 unblock_program_error_signals(); |
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|
3209 |
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|
3210 JVM_handle_aix_signal(sig, info, uc, true); |
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3211 } |
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|
3212 |
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|
3213 |
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3214 // This boolean allows users to forward their own non-matching signals |
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3215 // to JVM_handle_aix_signal, harmlessly. |
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3216 bool os::Aix::signal_handlers_are_installed = false; |
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|
3217 |
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|
3218 // For signal-chaining |
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|
3219 struct sigaction os::Aix::sigact[MAXSIGNUM]; |
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3220 unsigned int os::Aix::sigs = 0; |
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3221 bool os::Aix::libjsig_is_loaded = false; |
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3222 typedef struct sigaction *(*get_signal_t)(int); |
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3223 get_signal_t os::Aix::get_signal_action = NULL; |
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|
3224 |
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3225 struct sigaction* os::Aix::get_chained_signal_action(int sig) { |
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|
3226 struct sigaction *actp = NULL; |
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|
3227 |
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|
3228 if (libjsig_is_loaded) { |
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|
3229 // Retrieve the old signal handler from libjsig |
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3230 actp = (*get_signal_action)(sig); |
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|
3231 } |
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|
3232 if (actp == NULL) { |
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|
3233 // Retrieve the preinstalled signal handler from jvm |
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3234 actp = get_preinstalled_handler(sig); |
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|
3235 } |
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|
3236 |
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|
3237 return actp; |
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|
3238 } |
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|
3239 |
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|
3240 static bool call_chained_handler(struct sigaction *actp, int sig, |
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|
3241 siginfo_t *siginfo, void *context) { |
14451 | 3242 // Call the old signal handler |
3243 if (actp->sa_handler == SIG_DFL) { | |
3244 // It's more reasonable to let jvm treat it as an unexpected exception | |
3245 // instead of taking the default action. | |
3246 return false; | |
3247 } else if (actp->sa_handler != SIG_IGN) { | |
3248 if ((actp->sa_flags & SA_NODEFER) == 0) { | |
3249 // automaticlly block the signal | |
3250 sigaddset(&(actp->sa_mask), sig); | |
3251 } | |
3252 | |
3253 sa_handler_t hand = NULL; | |
3254 sa_sigaction_t sa = NULL; | |
3255 bool siginfo_flag_set = (actp->sa_flags & SA_SIGINFO) != 0; | |
3256 // retrieve the chained handler | |
3257 if (siginfo_flag_set) { | |
3258 sa = actp->sa_sigaction; | |
3259 } else { | |
3260 hand = actp->sa_handler; | |
3261 } | |
3262 | |
3263 if ((actp->sa_flags & SA_RESETHAND) != 0) { | |
3264 actp->sa_handler = SIG_DFL; | |
3265 } | |
3266 | |
3267 // try to honor the signal mask | |
3268 sigset_t oset; | |
3269 pthread_sigmask(SIG_SETMASK, &(actp->sa_mask), &oset); | |
3270 | |
3271 // call into the chained handler | |
3272 if (siginfo_flag_set) { | |
3273 (*sa)(sig, siginfo, context); | |
3274 } else { | |
3275 (*hand)(sig); | |
3276 } | |
3277 | |
3278 // restore the signal mask | |
3279 pthread_sigmask(SIG_SETMASK, &oset, 0); | |
3280 } | |
3281 // Tell jvm's signal handler the signal is taken care of. | |
14415
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|
3282 return true; |
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|
3283 } |
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|
3284 |
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|
3285 bool os::Aix::chained_handler(int sig, siginfo_t* siginfo, void* context) { |
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|
3286 bool chained = false; |
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|
3287 // signal-chaining |
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|
3288 if (UseSignalChaining) { |
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|
3289 struct sigaction *actp = get_chained_signal_action(sig); |
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3290 if (actp != NULL) { |
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|
3291 chained = call_chained_handler(actp, sig, siginfo, context); |
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|
3292 } |
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|
3293 } |
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|
3294 return chained; |
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|
3295 } |
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|
3296 |
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|
3297 struct sigaction* os::Aix::get_preinstalled_handler(int sig) { |
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3298 if ((((unsigned int)1 << sig) & sigs) != 0) { |
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|
3299 return &sigact[sig]; |
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|
3300 } |
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|
3301 return NULL; |
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|
3302 } |
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|
3303 |
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|
3304 void os::Aix::save_preinstalled_handler(int sig, struct sigaction& oldAct) { |
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|
3305 assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range"); |
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|
3306 sigact[sig] = oldAct; |
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3307 sigs |= (unsigned int)1 << sig; |
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|
3308 } |
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|
3309 |
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|
3310 // for diagnostic |
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|
3311 int os::Aix::sigflags[MAXSIGNUM]; |
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|
3312 |
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|
3313 int os::Aix::get_our_sigflags(int sig) { |
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3314 assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range"); |
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3315 return sigflags[sig]; |
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3316 } |
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3317 |
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3318 void os::Aix::set_our_sigflags(int sig, int flags) { |
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|
3319 assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range"); |
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|
3320 sigflags[sig] = flags; |
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|
3321 } |
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|
3322 |
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|
3323 void os::Aix::set_signal_handler(int sig, bool set_installed) { |
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|
3324 // Check for overwrite. |
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diff
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|
3325 struct sigaction oldAct; |
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diff
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|
3326 sigaction(sig, (struct sigaction*)NULL, &oldAct); |
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|
3327 |
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diff
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|
3328 void* oldhand = oldAct.sa_sigaction |
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|
3329 ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction) |
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|
3330 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler); |
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diff
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|
3331 // Renamed 'signalHandler' to avoid collision with other shared libs. |
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|
3332 if (oldhand != CAST_FROM_FN_PTR(void*, SIG_DFL) && |
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|
3333 oldhand != CAST_FROM_FN_PTR(void*, SIG_IGN) && |
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|
3334 oldhand != CAST_FROM_FN_PTR(void*, (sa_sigaction_t)javaSignalHandler)) { |
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|
3335 if (AllowUserSignalHandlers || !set_installed) { |
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|
3336 // Do not overwrite; user takes responsibility to forward to us. |
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|
3337 return; |
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|
3338 } else if (UseSignalChaining) { |
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|
3339 // save the old handler in jvm |
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|
3340 save_preinstalled_handler(sig, oldAct); |
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|
3341 // libjsig also interposes the sigaction() call below and saves the |
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|
3342 // old sigaction on it own. |
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|
3343 } else { |
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|
3344 fatal(err_msg("Encountered unexpected pre-existing sigaction handler " |
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|
3345 "%#lx for signal %d.", (long)oldhand, sig)); |
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|
3346 } |
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|
3347 } |
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|
3348 |
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|
3349 struct sigaction sigAct; |
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|
3350 sigfillset(&(sigAct.sa_mask)); |
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|
3351 if (!set_installed) { |
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|
3352 sigAct.sa_handler = SIG_DFL; |
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|
3353 sigAct.sa_flags = SA_RESTART; |
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|
3354 } else { |
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|
3355 // Renamed 'signalHandler' to avoid collision with other shared libs. |
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|
3356 sigAct.sa_sigaction = javaSignalHandler; |
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|
3357 sigAct.sa_flags = SA_SIGINFO|SA_RESTART; |
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|
3358 } |
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|
3359 // Save flags, which are set by ours |
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|
3360 assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range"); |
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|
3361 sigflags[sig] = sigAct.sa_flags; |
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|
3362 |
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|
3363 int ret = sigaction(sig, &sigAct, &oldAct); |
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|
3364 assert(ret == 0, "check"); |
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|
3365 |
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|
3366 void* oldhand2 = oldAct.sa_sigaction |
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|
3367 ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction) |
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|
3368 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler); |
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|
3369 assert(oldhand2 == oldhand, "no concurrent signal handler installation"); |
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|
3370 } |
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|
3371 |
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diff
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|
3372 // install signal handlers for signals that HotSpot needs to |
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diff
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|
3373 // handle in order to support Java-level exception handling. |
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diff
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|
3374 void os::Aix::install_signal_handlers() { |
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diff
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|
3375 if (!signal_handlers_are_installed) { |
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diff
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|
3376 signal_handlers_are_installed = true; |
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diff
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|
3377 |
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|
3378 // signal-chaining |
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diff
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|
3379 typedef void (*signal_setting_t)(); |
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diff
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|
3380 signal_setting_t begin_signal_setting = NULL; |
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diff
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|
3381 signal_setting_t end_signal_setting = NULL; |
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diff
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|
3382 begin_signal_setting = CAST_TO_FN_PTR(signal_setting_t, |
666e6ce3976c
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diff
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|
3383 dlsym(RTLD_DEFAULT, "JVM_begin_signal_setting")); |
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diff
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|
3384 if (begin_signal_setting != NULL) { |
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diff
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|
3385 end_signal_setting = CAST_TO_FN_PTR(signal_setting_t, |
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diff
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|
3386 dlsym(RTLD_DEFAULT, "JVM_end_signal_setting")); |
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diff
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|
3387 get_signal_action = CAST_TO_FN_PTR(get_signal_t, |
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diff
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|
3388 dlsym(RTLD_DEFAULT, "JVM_get_signal_action")); |
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diff
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|
3389 libjsig_is_loaded = true; |
666e6ce3976c
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diff
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|
3390 assert(UseSignalChaining, "should enable signal-chaining"); |
666e6ce3976c
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diff
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|
3391 } |
666e6ce3976c
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parents:
diff
changeset
|
3392 if (libjsig_is_loaded) { |
666e6ce3976c
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diff
changeset
|
3393 // Tell libjsig jvm is setting signal handlers |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3394 (*begin_signal_setting)(); |
666e6ce3976c
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parents:
diff
changeset
|
3395 } |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3396 |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3397 set_signal_handler(SIGSEGV, true); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3398 set_signal_handler(SIGPIPE, true); |
666e6ce3976c
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diff
changeset
|
3399 set_signal_handler(SIGBUS, true); |
666e6ce3976c
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diff
changeset
|
3400 set_signal_handler(SIGILL, true); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
3401 set_signal_handler(SIGFPE, true); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
3402 set_signal_handler(SIGTRAP, true); |
666e6ce3976c
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diff
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|
3403 set_signal_handler(SIGXFSZ, true); |
666e6ce3976c
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diff
changeset
|
3404 set_signal_handler(SIGDANGER, true); |
666e6ce3976c
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simonis
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diff
changeset
|
3405 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3406 if (libjsig_is_loaded) { |
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diff
changeset
|
3407 // Tell libjsig jvm finishes setting signal handlers |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3408 (*end_signal_setting)(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3409 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3410 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3411 // We don't activate signal checker if libjsig is in place, we trust ourselves |
666e6ce3976c
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simonis
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diff
changeset
|
3412 // and if UserSignalHandler is installed all bets are off. |
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diff
changeset
|
3413 // Log that signal checking is off only if -verbose:jni is specified. |
666e6ce3976c
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diff
changeset
|
3414 if (CheckJNICalls) { |
666e6ce3976c
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diff
changeset
|
3415 if (libjsig_is_loaded) { |
666e6ce3976c
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simonis
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diff
changeset
|
3416 tty->print_cr("Info: libjsig is activated, all active signal checking is disabled"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
3417 check_signals = false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
3418 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
3419 if (AllowUserSignalHandlers) { |
666e6ce3976c
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diff
changeset
|
3420 tty->print_cr("Info: AllowUserSignalHandlers is activated, all active signal checking is disabled"); |
666e6ce3976c
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diff
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|
3421 check_signals = false; |
666e6ce3976c
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diff
changeset
|
3422 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
3423 // need to initialize check_signal_done |
666e6ce3976c
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diff
changeset
|
3424 ::sigemptyset(&check_signal_done); |
666e6ce3976c
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diff
changeset
|
3425 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
3426 } |
666e6ce3976c
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diff
changeset
|
3427 } |
666e6ce3976c
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diff
changeset
|
3428 |
666e6ce3976c
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parents:
diff
changeset
|
3429 static const char* get_signal_handler_name(address handler, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
3430 char* buf, int buflen) { |
666e6ce3976c
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diff
changeset
|
3431 int offset; |
666e6ce3976c
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parents:
diff
changeset
|
3432 bool found = os::dll_address_to_library_name(handler, buf, buflen, &offset); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
3433 if (found) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3434 // skip directory names |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
3435 const char *p1, *p2; |
666e6ce3976c
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diff
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|
3436 p1 = buf; |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
3437 size_t len = strlen(os::file_separator()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
3438 while ((p2 = strstr(p1, os::file_separator())) != NULL) p1 = p2 + len; |
666e6ce3976c
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diff
changeset
|
3439 // The way os::dll_address_to_library_name is implemented on Aix |
666e6ce3976c
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diff
changeset
|
3440 // right now, it always returns -1 for the offset which is not |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
3441 // terribly informative. |
666e6ce3976c
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diff
changeset
|
3442 // Will fix that. For now, omit the offset. |
666e6ce3976c
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diff
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|
3443 jio_snprintf(buf, buflen, "%s", p1); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
changeset
|
3444 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3445 jio_snprintf(buf, buflen, PTR_FORMAT, handler); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3446 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3447 return buf; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3448 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3449 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3450 static void print_signal_handler(outputStream* st, int sig, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3451 char* buf, size_t buflen) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3452 struct sigaction sa; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3453 sigaction(sig, NULL, &sa); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3454 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3455 st->print("%s: ", os::exception_name(sig, buf, buflen)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3456 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3457 address handler = (sa.sa_flags & SA_SIGINFO) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3458 ? CAST_FROM_FN_PTR(address, sa.sa_sigaction) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3459 : CAST_FROM_FN_PTR(address, sa.sa_handler); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3460 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3461 if (handler == CAST_FROM_FN_PTR(address, SIG_DFL)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3462 st->print("SIG_DFL"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3463 } 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
|
3464 st->print("SIG_IGN"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3465 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3466 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
|
3467 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3468 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3469 // Print readable mask. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3470 st->print(", sa_mask[0]="); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3471 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
|
3472 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3473 address rh = VMError::get_resetted_sighandler(sig); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3474 // May be, handler was resetted by VMError? |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3475 if (rh != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3476 handler = rh; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3477 sa.sa_flags = VMError::get_resetted_sigflags(sig); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3478 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3479 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3480 // Print textual representation of sa_flags. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3481 st->print(", sa_flags="); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3482 os::Posix::print_sa_flags(st, sa.sa_flags); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3483 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3484 // Check: is it our handler? |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3485 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
|
3486 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
|
3487 // It is our signal handler. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3488 // Check for flags, reset system-used one! |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3489 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
|
3490 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
|
3491 os::Aix::get_our_sigflags(sig)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3492 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3493 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3494 st->cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3495 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3496 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3497 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3498 #define DO_SIGNAL_CHECK(sig) \ |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3499 if (!sigismember(&check_signal_done, sig)) \ |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3500 os::Aix::check_signal_handler(sig) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3501 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3502 // 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
|
3503 // under CheckJNI, we can add any periodic checks here |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3504 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3505 void os::run_periodic_checks() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3506 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3507 if (check_signals == false) return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3508 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3509 // SEGV and BUS if overridden could potentially prevent |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3510 // 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
|
3511 // 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
|
3512 // check the following for a good measure: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3513 DO_SIGNAL_CHECK(SIGSEGV); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3514 DO_SIGNAL_CHECK(SIGILL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3515 DO_SIGNAL_CHECK(SIGFPE); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3516 DO_SIGNAL_CHECK(SIGBUS); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3517 DO_SIGNAL_CHECK(SIGPIPE); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3518 DO_SIGNAL_CHECK(SIGXFSZ); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3519 if (UseSIGTRAP) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3520 DO_SIGNAL_CHECK(SIGTRAP); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3521 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3522 DO_SIGNAL_CHECK(SIGDANGER); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3523 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3524 // ReduceSignalUsage allows the user to override these handlers |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3525 // 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
|
3526 if (!ReduceSignalUsage) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3527 DO_SIGNAL_CHECK(SHUTDOWN1_SIGNAL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3528 DO_SIGNAL_CHECK(SHUTDOWN2_SIGNAL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3529 DO_SIGNAL_CHECK(SHUTDOWN3_SIGNAL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3530 DO_SIGNAL_CHECK(BREAK_SIGNAL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3531 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3532 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3533 DO_SIGNAL_CHECK(SR_signum); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3534 DO_SIGNAL_CHECK(INTERRUPT_SIGNAL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3535 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3536 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3537 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
|
3538 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3539 static os_sigaction_t os_sigaction = NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3540 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3541 void os::Aix::check_signal_handler(int sig) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3542 char buf[O_BUFLEN]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3543 address jvmHandler = NULL; |
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 struct sigaction act; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3546 if (os_sigaction == NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3547 // 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
|
3548 os_sigaction = (os_sigaction_t)dlsym(RTLD_DEFAULT, "sigaction"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3549 if (os_sigaction == NULL) return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3550 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3551 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3552 os_sigaction(sig, (struct sigaction*)NULL, &act); |
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 address thisHandler = (act.sa_flags & SA_SIGINFO) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3555 ? CAST_FROM_FN_PTR(address, act.sa_sigaction) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3556 : CAST_FROM_FN_PTR(address, act.sa_handler); |
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 switch(sig) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3560 case SIGSEGV: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3561 case SIGBUS: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3562 case SIGFPE: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3563 case SIGPIPE: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3564 case SIGILL: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3565 case SIGXFSZ: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3566 // Renamed 'signalHandler' to avoid collision with other shared libs. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3567 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
|
3568 break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3569 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3570 case SHUTDOWN1_SIGNAL: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3571 case SHUTDOWN2_SIGNAL: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3572 case SHUTDOWN3_SIGNAL: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3573 case BREAK_SIGNAL: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3574 jvmHandler = (address)user_handler(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3575 break; |
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 case INTERRUPT_SIGNAL: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3578 jvmHandler = CAST_FROM_FN_PTR(address, SIG_DFL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3579 break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3580 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3581 default: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3582 if (sig == SR_signum) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3583 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
|
3584 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3585 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3586 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3587 break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3588 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3589 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3590 if (thisHandler != jvmHandler) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3591 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
|
3592 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
|
3593 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
|
3594 // No need to check this sig any longer |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3595 sigaddset(&check_signal_done, sig); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3596 } 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
|
3597 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
|
3598 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
|
3599 tty->print_cr(" found:" PTR32_FORMAT, act.sa_flags); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3600 // No need to check this sig any longer |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3601 sigaddset(&check_signal_done, sig); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3604 // Dump all the signal |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3605 if (sigismember(&check_signal_done, sig)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3606 print_signal_handlers(tty, buf, O_BUFLEN); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3607 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3608 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3609 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3610 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
|
3611 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3612 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
|
3613 if (0 < exception_code && exception_code <= SIGRTMAX) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3614 // signal |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3615 if (!signal_name(exception_code, buf, size)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3616 jio_snprintf(buf, size, "SIG%d", exception_code); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3617 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3618 return buf; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3619 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3620 return NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3621 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3622 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3623 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3624 // To install functions for atexit system call |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3625 extern "C" { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3626 static void perfMemory_exit_helper() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3627 perfMemory_exit(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3628 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3629 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3630 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3631 // 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
|
3632 void os::init(void) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3633 // 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
|
3634 // (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
|
3635 assert(SHMLBA == ((uint64_t)0x10000000ULL)/*256M*/, "unexpected"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3636 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3637 // 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
|
3638 // the OS level we run on. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3639 os::Aix::initialize_os_info(); |
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 // Scan environment (SPEC1170 behaviour, etc) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3642 os::Aix::scan_environment(); |
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 // Check which pages are supported by AIX. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3645 os::Aix::query_multipage_support(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3646 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3647 // Next, we need to initialize libo4 and libperfstat libraries. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3648 if (os::Aix::on_pase()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3649 os::Aix::initialize_libo4(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3650 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3651 os::Aix::initialize_libperfstat(); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3654 // Reset the perfstat information provided by ODM. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3655 if (os::Aix::on_aix()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3656 libperfstat::perfstat_reset(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3657 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3658 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3659 // 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
|
3660 // need libperfstat etc. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3661 os::Aix::initialize_system_info(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3662 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3663 // Initialize large page support. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3664 if (UseLargePages) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3665 os::large_page_init(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3666 if (!UseLargePages) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3667 // initialize os::_page_sizes |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3668 _page_sizes[0] = Aix::page_size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3669 _page_sizes[1] = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3670 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3671 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
|
3672 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3673 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3674 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3675 // initialize os::_page_sizes |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3676 _page_sizes[0] = Aix::page_size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3677 _page_sizes[1] = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3678 } |
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 // debug trace |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3681 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3682 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
|
3683 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
|
3684 fprintf(stderr, "os::_page_sizes = ( "); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3685 for (int i = 0; _page_sizes[i]; i ++) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3686 fprintf(stderr, " %s ", describe_pagesize(_page_sizes[i])); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3687 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3688 fprintf(stderr, ")\n"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3689 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3690 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3691 _initial_pid = getpid(); |
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 clock_tics_per_sec = sysconf(_SC_CLK_TCK); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3694 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3695 init_random(1234567); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3696 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3697 ThreadCritical::initialize(); |
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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 // Main_thread points to the aboriginal thread. |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3700 Aix::_main_thread = pthread_self(); |
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parents:
diff
changeset
|
3701 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3702 initial_time_count = os::elapsed_counter(); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
3703 pthread_mutex_init(&dl_mutex, NULL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3704 } |
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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 // this is called _after_ the global arguments have been parsed |
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simonis
parents:
diff
changeset
|
3707 jint os::init_2(void) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3708 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3709 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3710 fprintf(stderr, "processor count: %d\n", os::_processor_count); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3711 fprintf(stderr, "physical memory: %lu\n", Aix::_physical_memory); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3712 } |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3713 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3714 // initially build up the loaded dll map |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3715 LoadedLibraries::reload(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3716 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3717 const int page_size = Aix::page_size(); |
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simonis
parents:
diff
changeset
|
3718 const int map_size = page_size; |
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simonis
parents:
diff
changeset
|
3719 |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3720 address map_address = (address) MAP_FAILED; |
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parents:
diff
changeset
|
3721 const int prot = PROT_READ; |
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parents:
diff
changeset
|
3722 const int flags = MAP_PRIVATE|MAP_ANONYMOUS; |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3723 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3724 // use optimized addresses for the polling page, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3725 // 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
|
3726 if (OptimizePollingPageLocation) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3727 // architecture-specific list of address wishes: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3728 address address_wishes[] = { |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3729 // 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
|
3730 // PPC64: all address wishes are non-negative 32 bit values where |
666e6ce3976c
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parents:
diff
changeset
|
3731 // the lower 16 bits are all zero. we can load these addresses |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3732 // with a single ppc_lis instruction. |
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simonis
parents:
diff
changeset
|
3733 (address) 0x30000000, (address) 0x31000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3734 (address) 0x32000000, (address) 0x33000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3735 (address) 0x40000000, (address) 0x41000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3736 (address) 0x42000000, (address) 0x43000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3737 (address) 0x50000000, (address) 0x51000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3738 (address) 0x52000000, (address) 0x53000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3739 (address) 0x60000000, (address) 0x61000000, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3740 (address) 0x62000000, (address) 0x63000000 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3741 }; |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
3742 int address_wishes_length = sizeof(address_wishes)/sizeof(address); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3743 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3744 // iterate over the list of address wishes: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3745 for (int i=0; i<address_wishes_length; i++) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3746 // try to map with current address wish. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3747 // 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
|
3748 // fail if the address is already mapped. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3749 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
|
3750 map_size, prot, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3751 flags | MAP_FIXED, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3752 -1, 0); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3753 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3754 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
|
3755 address_wishes[i], map_address + (ssize_t)page_size); |
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 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
|
3759 // 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
|
3760 break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3761 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3762 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3763 if (map_address != (address) MAP_FAILED) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3764 // 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
|
3765 ::munmap(map_address, map_size); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3766 map_address = (address) MAP_FAILED; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3767 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3768 // map failed, continue loop. |
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 } // end OptimizePollingPageLocation |
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 if (map_address == (address) MAP_FAILED) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3773 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
|
3774 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3775 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
|
3776 os::set_polling_page(map_address); |
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 if (!UseMembar) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3779 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
|
3780 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
|
3781 os::set_memory_serialize_page(mem_serialize_page); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3782 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3783 #ifndef PRODUCT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3784 if (Verbose && PrintMiscellaneous) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3785 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
|
3786 #endif |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3787 } |
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 // 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
|
3790 if (SR_initialize() != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3791 perror("SR_initialize failed"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3792 return JNI_ERR; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3793 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3794 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3795 Aix::signal_sets_init(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3796 Aix::install_signal_handlers(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3797 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3798 // 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
|
3799 // the java system classes, including StackOverflowError - depends on page |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3800 // 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
|
3801 // 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
|
3802 // class initialization depending on 32 or 64 bit VM. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3803 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
|
3804 (size_t)(StackYellowPages+StackRedPages+StackShadowPages + |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3805 2*BytesPerWord COMPILER2_PRESENT(+1)) * Aix::page_size()); |
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 size_t threadStackSizeInBytes = ThreadStackSize * K; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3808 if (threadStackSizeInBytes != 0 && |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3809 threadStackSizeInBytes < os::Aix::min_stack_allowed) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3810 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
|
3811 "Specify at least %dk", |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3812 os::Aix::min_stack_allowed / K); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3813 return JNI_ERR; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3814 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3815 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3816 // 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
|
3817 // the yellow/red zones can be guarded. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3818 // 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
|
3819 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
|
3820 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3821 Aix::libpthread_init(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3822 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3823 if (MaxFDLimit) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3824 // 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
|
3825 // if getrlimit/setrlimit fails but continue regardless. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3826 struct rlimit nbr_files; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3827 int status = getrlimit(RLIMIT_NOFILE, &nbr_files); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3828 if (status != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3829 if (PrintMiscellaneous && (Verbose || WizardMode)) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3830 perror("os::init_2 getrlimit failed"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3831 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3832 nbr_files.rlim_cur = nbr_files.rlim_max; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3833 status = setrlimit(RLIMIT_NOFILE, &nbr_files); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3834 if (status != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3835 if (PrintMiscellaneous && (Verbose || WizardMode)) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3836 perror("os::init_2 setrlimit failed"); |
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 } |
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 if (PerfAllowAtExitRegistration) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3842 // only register atexit functions if PerfAllowAtExitRegistration is set. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3843 // 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
|
3844 // 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
|
3845 // call DestroyJavaVM() to assure that VM resources are released. |
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 // 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
|
3848 // 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
|
3849 // VM_Exit VMOperation's doit method. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3850 if (atexit(perfMemory_exit_helper) != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3851 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3855 return JNI_OK; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3858 // this is called at the end of vm_initialization |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3859 void os::init_3(void) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3860 return; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3863 // Mark the polling page as unreadable |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3864 void os::make_polling_page_unreadable(void) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3865 if (!guard_memory((char*)_polling_page, Aix::page_size())) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3866 fatal("Could not disable polling page"); |
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 }; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3869 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3870 // Mark the polling page as readable |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3871 void os::make_polling_page_readable(void) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3872 // Changed according to os_linux.cpp. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3873 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
|
3874 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
|
3875 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3876 }; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3877 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3878 int os::active_processor_count() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3879 int online_cpus = ::sysconf(_SC_NPROCESSORS_ONLN); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3880 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
|
3881 return online_cpus; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3882 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3883 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3884 void os::set_native_thread_name(const char *name) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3885 // Not yet implemented. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3886 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3887 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3888 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3889 bool os::distribute_processes(uint length, uint* distribution) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3890 // Not yet implemented. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3891 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3892 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3893 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3894 bool os::bind_to_processor(uint processor_id) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3895 // Not yet implemented. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3896 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3897 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3898 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3899 void os::SuspendedThreadTask::internal_do_task() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3900 if (do_suspend(_thread->osthread())) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3901 SuspendedThreadTaskContext context(_thread, _thread->osthread()->ucontext()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3902 do_task(context); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3903 do_resume(_thread->osthread()); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3907 class PcFetcher : public os::SuspendedThreadTask { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3908 public: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3909 PcFetcher(Thread* thread) : os::SuspendedThreadTask(thread) {} |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3910 ExtendedPC result(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3911 protected: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3912 void do_task(const os::SuspendedThreadTaskContext& context); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3913 private: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3914 ExtendedPC _epc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3915 }; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3916 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3917 ExtendedPC PcFetcher::result() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3918 guarantee(is_done(), "task is not done yet."); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3919 return _epc; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3920 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3921 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3922 void PcFetcher::do_task(const os::SuspendedThreadTaskContext& context) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3923 Thread* thread = context.thread(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3924 OSThread* osthread = thread->osthread(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3925 if (osthread->ucontext() != NULL) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3926 _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
|
3927 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3928 // NULL context is unexpected, double-check this is the VMThread. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3929 guarantee(thread->is_VM_thread(), "can only be called for VMThread"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3930 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3931 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3932 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3933 // 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
|
3934 // resuming the target. Used by the flat-profiler only |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3935 ExtendedPC os::get_thread_pc(Thread* thread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3936 // Make sure that it is called by the watcher for the VMThread. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3937 assert(Thread::current()->is_Watcher_thread(), "Must be watcher"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3938 assert(thread->is_VM_thread(), "Can only be called for VMThread"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3939 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3940 PcFetcher fetcher(thread); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3941 fetcher.run(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3942 return fetcher.result(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3943 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3944 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3945 // Not neede on Aix. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3946 // 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
|
3947 // } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3948 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3949 //////////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3950 // debug support |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3951 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3952 static address same_page(address x, address y) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3953 intptr_t page_bits = -os::vm_page_size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3954 if ((intptr_t(x) & page_bits) == (intptr_t(y) & page_bits)) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3955 return x; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3956 else if (x > y) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3957 return (address)(intptr_t(y) | ~page_bits) + 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3958 else |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3959 return (address)(intptr_t(y) & page_bits); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3960 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3961 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3962 bool os::find(address addr, outputStream* st) { |
14451 | 3963 |
3964 st->print(PTR_FORMAT ": ", addr); | |
3965 | |
3966 const LoadedLibraryModule* lib = LoadedLibraries::find_for_text_address(addr); | |
3967 if (lib) { | |
3968 lib->print(st); | |
3969 return true; | |
3970 } else { | |
3971 lib = LoadedLibraries::find_for_data_address(addr); | |
3972 if (lib) { | |
3973 lib->print(st); | |
3974 return true; | |
3975 } else { | |
3976 st->print_cr("(outside any module)"); | |
3977 } | |
3978 } | |
3979 | |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3980 return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3981 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3982 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3983 //////////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3984 // misc |
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 // 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
|
3987 // 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
|
3988 // on, e.g., Win32. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3989 void |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3990 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
|
3991 JavaCallArguments* args, Thread* thread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3992 f(value, method, args, thread); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3993 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3994 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3995 void os::print_statistics() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3996 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3997 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
3998 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
|
3999 int i; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4000 fdStream err(defaultStream::error_fd()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4001 for (i = 0; i < 78; i++) err.print_raw("="); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4002 err.cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4003 err.print_raw_cr(title); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4004 for (i = 0; i < 78; i++) err.print_raw("-"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4005 err.cr(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4006 err.print_raw_cr(message); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4007 for (i = 0; i < 78; i++) err.print_raw("="); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4008 err.cr(); |
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 char buf[16]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4011 // 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
|
4012 while (::read(0, buf, sizeof(buf)) <= 0) { ::sleep(100); } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4013 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4014 return buf[0] == 'y' || buf[0] == 'Y'; |
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 int os::stat(const char *path, struct stat *sbuf) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4018 char pathbuf[MAX_PATH]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4019 if (strlen(path) > MAX_PATH - 1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4020 errno = ENAMETOOLONG; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4021 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4022 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4023 os::native_path(strcpy(pathbuf, path)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4024 return ::stat(pathbuf, sbuf); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4025 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4026 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4027 bool os::check_heap(bool force) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4028 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4029 } |
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 // 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
|
4032 // return ::vsnprintf(buf, count, format, args); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4033 // } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4034 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4035 // Is a (classpath) directory empty? |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4036 bool os::dir_is_empty(const char* path) { |
14451 | 4037 DIR *dir = NULL; |
4038 struct dirent *ptr; | |
4039 | |
4040 dir = opendir(path); | |
4041 if (dir == NULL) return true; | |
4042 | |
4043 /* Scan the directory */ | |
4044 bool result = true; | |
4045 char buf[sizeof(struct dirent) + MAX_PATH]; | |
4046 while (result && (ptr = ::readdir(dir)) != NULL) { | |
4047 if (strcmp(ptr->d_name, ".") != 0 && strcmp(ptr->d_name, "..") != 0) { | |
4048 result = false; | |
4049 } | |
4050 } | |
4051 closedir(dir); | |
4052 return result; | |
14415
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 // This code originates from JDK's sysOpen and open64_w |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4056 // from src/solaris/hpi/src/system_md.c |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4057 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4058 #ifndef O_DELETE |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4059 #define O_DELETE 0x10000 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4060 #endif |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4061 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4062 // Open a file. Unlink the file immediately after open returns |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4063 // if the specified oflag has the O_DELETE flag set. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4064 // O_DELETE is used only in j2se/src/share/native/java/util/zip/ZipFile.c |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4065 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4066 int os::open(const char *path, int oflag, int mode) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4067 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4068 if (strlen(path) > MAX_PATH - 1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4069 errno = ENAMETOOLONG; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4070 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4071 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4072 int fd; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4073 int o_delete = (oflag & O_DELETE); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4074 oflag = oflag & ~O_DELETE; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4075 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4076 fd = ::open64(path, oflag, mode); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4077 if (fd == -1) return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4078 |
14451 | 4079 // If the open succeeded, the file might still be a directory. |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4080 { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4081 struct stat64 buf64; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4082 int ret = ::fstat64(fd, &buf64); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4083 int st_mode = buf64.st_mode; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4084 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4085 if (ret != -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4086 if ((st_mode & S_IFMT) == S_IFDIR) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4087 errno = EISDIR; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4088 ::close(fd); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4089 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4090 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4091 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4092 ::close(fd); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4093 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4094 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4095 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4096 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4097 // 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
|
4098 // specifically destined for a subprocess should have the |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4099 // 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
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|
4100 // party native code might fork and exec without closing all |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4101 // 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
|
4102 // UNIXProcess.c), and this in turn might: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4103 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4104 // - 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
|
4105 // descriptors, resulting in mysterious hangs, or |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4106 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4107 // - 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
|
4108 // suffering from bug 1085341. |
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 // (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
|
4111 // design flaw.) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4112 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4113 // See: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4114 // 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
|
4115 // 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
|
4116 // 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
|
4117 #ifdef FD_CLOEXEC |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4118 { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4119 int flags = ::fcntl(fd, F_GETFD); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4120 if (flags != -1) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4121 ::fcntl(fd, F_SETFD, flags | FD_CLOEXEC); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4122 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4123 #endif |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4124 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4125 if (o_delete != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4126 ::unlink(path); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4127 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4128 return fd; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4129 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4130 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4131 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4132 // create binary file, rewriting existing file if required |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4133 int os::create_binary_file(const char* path, bool rewrite_existing) { |
14451 | 4134 int oflags = O_WRONLY | O_CREAT; |
4135 if (!rewrite_existing) { | |
4136 oflags |= O_EXCL; | |
4137 } | |
4138 return ::open64(path, oflags, S_IREAD | S_IWRITE); | |
14415
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4139 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4140 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4141 // return current position of file pointer |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4142 jlong os::current_file_offset(int fd) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4143 return (jlong)::lseek64(fd, (off64_t)0, SEEK_CUR); |
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 // move file pointer to the specified offset |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4147 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
|
4148 return (jlong)::lseek64(fd, (off64_t)offset, SEEK_SET); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4149 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4150 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4151 // This code originates from JDK's sysAvailable |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4152 // 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
|
4153 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4154 int os::available(int fd, jlong *bytes) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4155 jlong cur, end; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4156 int mode; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4157 struct stat64 buf64; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4158 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4159 if (::fstat64(fd, &buf64) >= 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4160 mode = buf64.st_mode; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4161 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
|
4162 // 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
|
4163 // 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
|
4164 // blocking, interruptible calls in this file. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4165 int n; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4166 if (::ioctl(fd, FIONREAD, &n) >= 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4167 *bytes = n; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4168 return 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4169 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4170 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4171 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4172 if ((cur = ::lseek64(fd, 0L, SEEK_CUR)) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4173 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4174 } else if ((end = ::lseek64(fd, 0L, SEEK_END)) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4175 return 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4176 } else if (::lseek64(fd, cur, SEEK_SET) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4177 return 0; |
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 *bytes = end - cur; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4180 return 1; |
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
simonis
parents:
diff
changeset
|
4183 int os::socket_available(int fd, jint *pbytes) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4184 // Linux doc says EINTR not returned, unlike Solaris |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4185 int ret = ::ioctl(fd, FIONREAD, pbytes); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4186 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4187 //%% note ioctl can return 0 when successful, JVM_SocketAvailable |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4188 // 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
|
4189 return (ret < 0) ? 0 : 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4190 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4191 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4192 // Map a block of memory. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4193 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
|
4194 char *addr, size_t bytes, bool read_only, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4195 bool allow_exec) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4196 Unimplemented(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4197 return NULL; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4198 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4199 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4200 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4201 // Remap a block of memory. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4202 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
|
4203 char *addr, size_t bytes, bool read_only, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4204 bool allow_exec) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4205 // same as map_memory() on this OS |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4206 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
|
4207 allow_exec); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4208 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4209 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4210 // Unmap a block of memory. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4211 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
|
4212 return munmap(addr, bytes) == 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4213 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4214 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4215 // 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
|
4216 // 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
|
4217 // of a thread. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4218 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4219 // 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
|
4220 // the fast estimate available on the platform. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4221 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4222 jlong os::current_thread_cpu_time() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4223 // return user + sys since the cost is the same |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4224 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
|
4225 assert(n >= 0, "negative CPU time"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4226 return n; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4227 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4228 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4229 jlong os::thread_cpu_time(Thread* thread) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4230 // consistent with what current_thread_cpu_time() returns |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4231 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
|
4232 assert(n >= 0, "negative CPU time"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4233 return n; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4234 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4235 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4236 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
|
4237 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
|
4238 assert(n >= 0, "negative CPU time"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4239 return n; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4240 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4241 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4242 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
|
4243 bool error = false; |
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 jlong sys_time = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4246 jlong user_time = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4247 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4248 // reimplemented using getthrds64(). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4249 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4250 // goes like this: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4251 // 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
|
4252 // kernel thread statistics using that id. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4253 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4254 // 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
|
4255 // 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
|
4256 // On AIX, see AIXTHREAD_SCOPE variable. |
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 pthread_t pthtid = thread->osthread()->pthread_id(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4259 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4260 // retrieve kernel thread id for the pthread: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4261 tid64_t tid = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4262 struct __pthrdsinfo pinfo; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4263 // 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
|
4264 // dummy buffers for stuff I dont care for... |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4265 char dummy[1]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4266 int dummy_size = sizeof(dummy); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4267 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
|
4268 dummy, &dummy_size) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4269 tid = pinfo.__pi_tid; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4270 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4271 tty->print_cr("pthread_getthrds_np failed."); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4272 error = true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4273 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4274 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4275 // retrieve kernel timing info for that kernel thread |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4276 if (!error) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4277 struct thrdentry64 thrdentry; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4278 if (getthrds64(getpid(), &thrdentry, sizeof(thrdentry), &tid, 1) == 1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4279 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
|
4280 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
|
4281 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4282 tty->print_cr("pthread_getthrds_np failed."); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4283 error = true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4284 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4285 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4286 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4287 if (p_sys_time) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4288 *p_sys_time = sys_time; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4289 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4290 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4291 if (p_user_time) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4292 *p_user_time = user_time; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4295 if (error) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4296 return false; |
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 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4300 } |
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 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
|
4303 jlong sys_time; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4304 jlong user_time; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4305 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4306 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
|
4307 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4308 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4309 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4310 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
|
4311 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4312 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4313 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
|
4314 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
|
4315 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
|
4316 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
|
4317 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
|
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 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4321 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
|
4322 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
|
4323 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
|
4324 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
|
4325 } |
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 bool os::is_thread_cpu_time_supported() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4328 return true; |
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 // 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
|
4332 // 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
|
4333 int os::loadavg(double values[], int nelem) { |
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 // Implemented using libperfstat on AIX. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4336 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4337 guarantee(nelem >= 0 && nelem <= 3, "argument error"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4338 guarantee(values, "argument error"); |
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 if (os::Aix::on_pase()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4341 Unimplemented(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4342 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4343 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4344 // AIX: use libperfstat |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4345 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4346 // See also: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4347 // 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
|
4348 // /usr/include/libperfstat.h: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4349 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4350 // Use the already AIX version independent get_cpuinfo. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4351 os::Aix::cpuinfo_t ci; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4352 if (os::Aix::get_cpuinfo(&ci)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4353 for (int i = 0; i < nelem; i++) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4354 values[i] = ci.loadavg[i]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4355 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4356 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4357 return -1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4358 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4359 return nelem; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4360 } |
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 void os::pause() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4364 char filename[MAX_PATH]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4365 if (PauseAtStartupFile && PauseAtStartupFile[0]) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4366 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4367 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4368 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
|
4369 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4370 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4371 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
|
4372 if (fd != -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4373 struct stat buf; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4374 ::close(fd); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4375 while (::stat(filename, &buf) == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4376 (void)::poll(NULL, 0, 100); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4377 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4378 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4379 jio_fprintf(stderr, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4380 "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
|
4381 } |
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 bool os::Aix::is_primordial_thread() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4385 if (pthread_self() == (pthread_t)1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4386 return true; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4387 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4388 return false; |
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 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4391 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4392 // 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
|
4393 // one of Aix::on_pase(), Aix::os_version() static |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4394 void os::Aix::initialize_os_info() { |
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 assert(_on_pase == -1 && _os_version == -1, "already called."); |
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 struct utsname uts; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4399 memset(&uts, 0, sizeof(uts)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4400 strcpy(uts.sysname, "?"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4401 if (::uname(&uts) == -1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4402 fprintf(stderr, "uname failed (%d)\n", errno); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4403 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
|
4404 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4405 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4406 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
|
4407 "node \"%s\" machine \"%s\"\n", |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4408 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
|
4409 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4410 const int major = atoi(uts.version); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4411 assert(major > 0, "invalid OS version"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4412 const int minor = atoi(uts.release); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4413 assert(minor > 0, "invalid OS release"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4414 _os_version = (major << 8) | minor; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4415 if (strcmp(uts.sysname, "OS400") == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4416 Unimplemented(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4417 } else if (strcmp(uts.sysname, "AIX") == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4418 // 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
|
4419 _on_pase = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4420 if (_os_version < 0x0503) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4421 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
|
4422 assert(false, "AIX release too old."); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4423 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4424 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4425 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
|
4426 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4427 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4428 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4429 assert(false, "unknown OS"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4430 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4431 } |
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 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
|
4434 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4435 } // end: os::Aix::initialize_os_info() |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4436 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4437 // 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
|
4438 // 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
|
4439 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4440 // Must run after os::Aix::initialue_os_info(). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4441 void os::Aix::scan_environment() { |
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 char* p; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4444 int rc; |
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 // 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
|
4447 // 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
|
4448 // shared memory cannot be change dynamically, effectivly preventing |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4449 // large pages from working. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4450 // 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
|
4451 // recommendation is (in OSS notes) to switch it off. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4452 p = ::getenv("EXTSHM"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4453 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4454 fprintf(stderr, "EXTSHM=%s.\n", p ? p : "<unset>"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4455 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4456 if (p && strcmp(p, "ON") == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4457 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
|
4458 _extshm = 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4459 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4460 _extshm = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4461 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4462 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4463 // SPEC1170 behaviour: will change the behaviour of a number of POSIX APIs. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4464 // Not tested, not supported. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4465 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4466 // Note that it might be worth the trouble to test and to require it, if only to |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4467 // get useful return codes for mprotect. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4468 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4469 // Note: Setting XPG_SUS_ENV in the process is too late. Must be set earlier (before |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4470 // exec() ? before loading the libjvm ? ....) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4471 p = ::getenv("XPG_SUS_ENV"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4472 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4473 fprintf(stderr, "XPG_SUS_ENV=%s.\n", p ? p : "<unset>"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4474 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4475 if (p && strcmp(p, "ON") == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4476 _xpg_sus_mode = 1; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4477 fprintf(stderr, "Unsupported setting: XPG_SUS_ENV=ON\n"); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4478 // This is not supported. Worst of all, it changes behaviour of mmap MAP_FIXED to |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4479 // clobber address ranges. If we ever want to support that, we have to do some |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4480 // testing first. |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4481 guarantee(false, "XPG_SUS_ENV=ON not supported"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4482 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4483 _xpg_sus_mode = 0; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4486 // Switch off AIX internal (pthread) guard pages. This has |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4487 // immediate effect for any pthread_create calls which follow. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4488 p = ::getenv("AIXTHREAD_GUARDPAGES"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4489 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4490 fprintf(stderr, "AIXTHREAD_GUARDPAGES=%s.\n", p ? p : "<unset>"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4491 fprintf(stderr, "setting AIXTHREAD_GUARDPAGES=0.\n"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4492 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4493 rc = ::putenv("AIXTHREAD_GUARDPAGES=0"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4494 guarantee(rc == 0, ""); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4495 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4496 } // end: os::Aix::scan_environment() |
666e6ce3976c
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simonis
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diff
changeset
|
4497 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4498 // PASE: initialize the libo4 library (AS400 PASE porting library). |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4499 void os::Aix::initialize_libo4() { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4500 Unimplemented(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4501 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4502 |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4503 // AIX: initialize the libperfstat library (we load this dynamically |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4504 // because it is only available on AIX. |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4505 void os::Aix::initialize_libperfstat() { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4506 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4507 assert(os::Aix::on_aix(), "AIX only"); |
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 if (!libperfstat::init()) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4510 fprintf(stderr, "libperfstat initialization failed.\n"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4511 assert(false, "libperfstat initialization failed"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4512 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4513 if (Verbose) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4514 fprintf(stderr, "libperfstat initialized.\n"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4515 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4516 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4517 } // end: os::Aix::initialize_libperfstat |
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simonis
parents:
diff
changeset
|
4518 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4519 ///////////////////////////////////////////////////////////////////////////// |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4520 // thread stack |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4521 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4522 // function to query the current stack size using pthread_getthrds_np |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4523 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4524 // ! do not change anything here unless you know what you are doing ! |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4525 static void query_stack_dimensions(address* p_stack_base, size_t* p_stack_size) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4526 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4527 // This only works when invoked on a pthread. As we agreed not to use |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4528 // primordial threads anyway, I assert here |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4529 guarantee(!os::Aix::is_primordial_thread(), "not allowed on the primordial thread"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4530 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4531 // 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
|
4532 // (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
|
4533 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4534 // 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
|
4535 // 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
|
4536 // 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
|
4537 // 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
|
4538 // 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
|
4539 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4540 pthread_t tid = pthread_self(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4541 struct __pthrdsinfo pinfo; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4542 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
|
4543 int dummy_size = sizeof(dummy); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4544 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4545 memset(&pinfo, 0, sizeof(pinfo)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4546 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4547 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
|
4548 sizeof(pinfo), dummy, &dummy_size); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4549 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4550 if (rc != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4551 fprintf(stderr, "pthread_getthrds_np failed (%d)\n", rc); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4552 guarantee(0, "pthread_getthrds_np failed"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4553 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4554 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4555 guarantee(pinfo.__pi_stackend, "returned stack base invalid"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4556 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4557 // the following can happen when invoking pthread_getthrds_np on a pthread running on a user provided stack |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4558 // (when handing down a stack to pthread create, see pthread_attr_setstackaddr). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4559 // Not sure what to do here - I feel inclined to forbid this use case completely. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4560 guarantee(pinfo.__pi_stacksize, "returned stack size invalid"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4561 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4562 // On AIX, stacks are not necessarily page aligned so round the base and size accordingly |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4563 if (p_stack_base) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4564 (*p_stack_base) = (address) align_size_up((intptr_t)pinfo.__pi_stackend, os::Aix::stack_page_size()); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4565 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4566 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4567 if (p_stack_size) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4568 (*p_stack_size) = pinfo.__pi_stacksize - os::Aix::stack_page_size(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4569 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4570 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4571 #ifndef PRODUCT |
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, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4574 "query_stack_dimensions() -> real stack_base=" INTPTR_FORMAT ", real stack_addr=" INTPTR_FORMAT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4575 ", real stack_size=" INTPTR_FORMAT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4576 ", stack_base=" INTPTR_FORMAT ", stack_size=" INTPTR_FORMAT "\n", |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4577 (intptr_t)pinfo.__pi_stackend, (intptr_t)pinfo.__pi_stackaddr, pinfo.__pi_stacksize, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4578 (intptr_t)align_size_up((intptr_t)pinfo.__pi_stackend, os::Aix::stack_page_size()), |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4579 pinfo.__pi_stacksize - os::Aix::stack_page_size()); |
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 #endif |
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 query_stack_dimensions |
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 // get the current stack base from the OS (actually, the pthread library) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4586 address os::current_stack_base() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4587 address p; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4588 query_stack_dimensions(&p, 0); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4589 return p; |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4592 // get the current stack size from the OS (actually, the pthread library) |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4593 size_t os::current_stack_size() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4594 size_t s; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4595 query_stack_dimensions(0, &s); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4596 return s; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4597 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4598 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4599 // Refer to the comments in os_solaris.cpp park-unpark. |
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4600 // |
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4601 // Beware -- Some versions of NPTL embody a flaw where pthread_cond_timedwait() can |
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4602 // hang indefinitely. For instance NPTL 0.60 on 2.4.21-4ELsmp is vulnerable. |
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4603 // For specifics regarding the bug see GLIBC BUGID 261237 : |
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4604 // http://www.mail-archive.com/debian-glibc@lists.debian.org/msg10837.html. |
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4605 // Briefly, pthread_cond_timedwait() calls with an expiry time that's not in the future |
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4606 // will either hang or corrupt the condvar, resulting in subsequent hangs if the condvar |
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4607 // is used. (The simple C test-case provided in the GLIBC bug report manifests the |
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4608 // hang). The JVM is vulernable via sleep(), Object.wait(timo), LockSupport.parkNanos() |
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4609 // and monitorenter when we're using 1-0 locking. All those operations may result in |
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4610 // calls to pthread_cond_timedwait(). Using LD_ASSUME_KERNEL to use an older version |
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4611 // of libpthread avoids the problem, but isn't practical. |
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4612 // |
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4613 // Possible remedies: |
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4614 // |
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4615 // 1. Establish a minimum relative wait time. 50 to 100 msecs seems to work. |
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4616 // This is palliative and probabilistic, however. If the thread is preempted |
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4617 // between the call to compute_abstime() and pthread_cond_timedwait(), more |
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4618 // than the minimum period may have passed, and the abstime may be stale (in the |
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4619 // past) resultin in a hang. Using this technique reduces the odds of a hang |
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4620 // but the JVM is still vulnerable, particularly on heavily loaded systems. |
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4621 // |
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4622 // 2. Modify park-unpark to use per-thread (per ParkEvent) pipe-pairs instead |
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4623 // of the usual flag-condvar-mutex idiom. The write side of the pipe is set |
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4624 // NDELAY. unpark() reduces to write(), park() reduces to read() and park(timo) |
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4625 // reduces to poll()+read(). This works well, but consumes 2 FDs per extant |
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4626 // thread. |
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4627 // |
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4628 // 3. Embargo pthread_cond_timedwait() and implement a native "chron" thread |
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4629 // that manages timeouts. We'd emulate pthread_cond_timedwait() by enqueuing |
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4630 // a timeout request to the chron thread and then blocking via pthread_cond_wait(). |
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4631 // This also works well. In fact it avoids kernel-level scalability impediments |
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4632 // on certain platforms that don't handle lots of active pthread_cond_timedwait() |
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4633 // timers in a graceful fashion. |
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4634 // |
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4635 // 4. When the abstime value is in the past it appears that control returns |
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4636 // correctly from pthread_cond_timedwait(), but the condvar is left corrupt. |
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4637 // Subsequent timedwait/wait calls may hang indefinitely. Given that, we |
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4638 // can avoid the problem by reinitializing the condvar -- by cond_destroy() |
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4639 // followed by cond_init() -- after all calls to pthread_cond_timedwait(). |
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4640 // It may be possible to avoid reinitialization by checking the return |
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4641 // value from pthread_cond_timedwait(). In addition to reinitializing the |
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4642 // condvar we must establish the invariant that cond_signal() is only called |
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4643 // within critical sections protected by the adjunct mutex. This prevents |
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4644 // cond_signal() from "seeing" a condvar that's in the midst of being |
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4645 // reinitialized or that is corrupt. Sadly, this invariant obviates the |
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4646 // desirable signal-after-unlock optimization that avoids futile context switching. |
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4647 // |
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4648 // I'm also concerned that some versions of NTPL might allocate an auxilliary |
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4649 // structure when a condvar is used or initialized. cond_destroy() would |
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4650 // release the helper structure. Our reinitialize-after-timedwait fix |
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4651 // put excessive stress on malloc/free and locks protecting the c-heap. |
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4652 // |
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4653 // We currently use (4). See the WorkAroundNTPLTimedWaitHang flag. |
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4654 // It may be possible to refine (4) by checking the kernel and NTPL verisons |
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4655 // and only enabling the work-around for vulnerable environments. |
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|
4656 |
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4657 // utility to compute the abstime argument to timedwait: |
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|
4658 // millis is the relative timeout time |
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|
4659 // abstime will be the absolute timeout time |
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4660 // TODO: replace compute_abstime() with unpackTime() |
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|
4661 |
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|
4662 static struct timespec* compute_abstime(timespec* abstime, jlong millis) { |
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4663 if (millis < 0) millis = 0; |
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|
4664 struct timeval now; |
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|
4665 int status = gettimeofday(&now, NULL); |
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|
4666 assert(status == 0, "gettimeofday"); |
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|
4667 jlong seconds = millis / 1000; |
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|
4668 millis %= 1000; |
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|
4669 if (seconds > 50000000) { // see man cond_timedwait(3T) |
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|
4670 seconds = 50000000; |
666e6ce3976c
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|
4671 } |
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|
4672 abstime->tv_sec = now.tv_sec + seconds; |
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|
4673 long usec = now.tv_usec + millis * 1000; |
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|
4674 if (usec >= 1000000) { |
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|
4675 abstime->tv_sec += 1; |
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|
4676 usec -= 1000000; |
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|
4677 } |
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|
4678 abstime->tv_nsec = usec * 1000; |
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|
4679 return abstime; |
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|
4680 } |
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|
4681 |
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|
4682 |
666e6ce3976c
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|
4683 // Test-and-clear _Event, always leaves _Event set to 0, returns immediately. |
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|
4684 // Conceptually TryPark() should be equivalent to park(0). |
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|
4685 |
666e6ce3976c
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|
4686 int os::PlatformEvent::TryPark() { |
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|
4687 for (;;) { |
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|
4688 const int v = _Event; |
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|
4689 guarantee ((v == 0) || (v == 1), "invariant"); |
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|
4690 if (Atomic::cmpxchg (0, &_Event, v) == v) return v; |
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|
4691 } |
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|
4692 } |
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|
4693 |
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|
4694 void os::PlatformEvent::park() { // AKA "down()" |
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|
4695 // Invariant: Only the thread associated with the Event/PlatformEvent |
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|
4696 // may call park(). |
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|
4697 // TODO: assert that _Assoc != NULL or _Assoc == Self |
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diff
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|
4698 int v; |
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|
4699 for (;;) { |
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|
4700 v = _Event; |
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|
4701 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break; |
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|
4702 } |
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|
4703 guarantee (v >= 0, "invariant"); |
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|
4704 if (v == 0) { |
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|
4705 // Do this the hard way by blocking ... |
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|
4706 int status = pthread_mutex_lock(_mutex); |
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|
4707 assert_status(status == 0, status, "mutex_lock"); |
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|
4708 guarantee (_nParked == 0, "invariant"); |
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|
4709 ++ _nParked; |
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|
4710 while (_Event < 0) { |
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|
4711 status = pthread_cond_wait(_cond, _mutex); |
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|
4712 assert_status(status == 0 || status == ETIMEDOUT, status, "cond_timedwait"); |
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|
4713 } |
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|
4714 -- _nParked; |
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|
4715 |
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|
4716 // In theory we could move the ST of 0 into _Event past the unlock(), |
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|
4717 // but then we'd need a MEMBAR after the ST. |
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|
4718 _Event = 0; |
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diff
changeset
|
4719 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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parents:
diff
changeset
|
4720 assert_status(status == 0, status, "mutex_unlock"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4721 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4722 guarantee (_Event >= 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4723 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4724 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4725 int os::PlatformEvent::park(jlong millis) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4726 guarantee (_nParked == 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4727 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4728 int v; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4729 for (;;) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4730 v = _Event; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4731 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4732 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4733 guarantee (v >= 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4734 if (v != 0) return OS_OK; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4735 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4736 // 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
|
4737 // Consider enforcing a minimum timeout value. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4738 struct timespec abst; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4739 compute_abstime(&abst, millis); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4740 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4741 int ret = OS_TIMEOUT; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4742 int status = pthread_mutex_lock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4743 assert_status(status == 0, status, "mutex_lock"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4744 guarantee (_nParked == 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4745 ++_nParked; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4746 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4747 // Object.wait(timo) will return because of |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4748 // (a) notification |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4749 // (b) timeout |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4750 // (c) thread.interrupt |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4751 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4752 // 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
|
4753 // 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
|
4754 // The underlying Solaris implementation, cond_timedwait, admits |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4755 // 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
|
4756 // 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
|
4757 // 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
|
4758 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4759 // TODO: properly differentiate simultaneous notify+interrupt. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4760 // 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
|
4761 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4762 while (_Event < 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4763 status = pthread_cond_timedwait(_cond, _mutex, &abst); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4764 assert_status(status == 0 || status == ETIMEDOUT, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4765 status, "cond_timedwait"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4766 if (!FilterSpuriousWakeups) break; // previous semantics |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4767 if (status == ETIMEDOUT) break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4768 // We consume and ignore EINTR and spurious wakeups. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4769 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4770 --_nParked; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4771 if (_Event >= 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4772 ret = OS_OK; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4773 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4774 _Event = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4775 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4776 assert_status(status == 0, status, "mutex_unlock"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4777 assert (_nParked == 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4778 return ret; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4779 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4780 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4781 void os::PlatformEvent::unpark() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4782 int v, AnyWaiters; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4783 for (;;) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4784 v = _Event; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4785 if (v > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4786 // 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
|
4787 // 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
|
4788 // To avoid problems execute a barrier and then |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4789 // ratify the value. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4790 OrderAccess::fence(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4791 if (_Event == v) return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4792 continue; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4793 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4794 if (Atomic::cmpxchg (v+1, &_Event, v) == v) break; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4795 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4796 if (v < 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4797 // 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
|
4798 int status = pthread_mutex_lock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4799 assert_status(status == 0, status, "mutex_lock"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4800 AnyWaiters = _nParked; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4801 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4802 if (AnyWaiters != 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4803 // We intentional signal *after* dropping the lock |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4804 // to avoid a common class of futile wakeups. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4805 status = pthread_cond_signal(_cond); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4806 assert_status(status == 0, status, "cond_signal"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4807 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4808 // Mutex should be locked for pthread_cond_signal(_cond). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4809 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4810 assert_status(status == 0, status, "mutex_unlock"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4811 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4812 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4813 // 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
|
4814 // 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
|
4815 // 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
|
4816 // 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
|
4817 // simply re-test the condition and re-park itself. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4818 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4819 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4820 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4821 // JSR166 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4822 // ------------------------------------------------------- |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4823 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4824 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4825 // 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
|
4826 // 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
|
4827 // mutex/condvar pair, plus a a count. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4828 // 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
|
4829 // 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
|
4830 // 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
|
4831 // 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
|
4832 // is no need to track notifications. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4833 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4834 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4835 #define MAX_SECS 100000000 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4836 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4837 // 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
|
4838 // common place in dolphin. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4839 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4840 // 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
|
4841 // 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
|
4842 // 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
|
4843 // given timespec structure. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4844 // 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
|
4845 // 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
|
4846 // 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
|
4847 // 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
|
4848 // 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
|
4849 // 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
|
4850 // 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
|
4851 // 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
|
4852 // years from "now". |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4853 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4854 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4855 static void unpackTime(timespec* absTime, bool isAbsolute, jlong time) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4856 assert (time > 0, "convertTime"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4857 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4858 struct timeval now; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4859 int status = gettimeofday(&now, NULL); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4860 assert(status == 0, "gettimeofday"); |
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 time_t max_secs = now.tv_sec + MAX_SECS; |
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 if (isAbsolute) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4865 jlong secs = time / 1000; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4866 if (secs > max_secs) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4867 absTime->tv_sec = max_secs; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4868 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4869 else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4870 absTime->tv_sec = secs; |
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 absTime->tv_nsec = (time % 1000) * NANOSECS_PER_MILLISEC; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4873 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4874 else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4875 jlong secs = time / NANOSECS_PER_SEC; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4876 if (secs >= MAX_SECS) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4877 absTime->tv_sec = max_secs; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4878 absTime->tv_nsec = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4879 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4880 else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4881 absTime->tv_sec = now.tv_sec + secs; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4882 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
|
4883 if (absTime->tv_nsec >= NANOSECS_PER_SEC) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4884 absTime->tv_nsec -= NANOSECS_PER_SEC; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4885 ++absTime->tv_sec; // note: this must be <= max_secs |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4886 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4887 } |
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 assert(absTime->tv_sec >= 0, "tv_sec < 0"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4890 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
|
4891 assert(absTime->tv_nsec >= 0, "tv_nsec < 0"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4892 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
|
4893 } |
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 void Parker::park(bool isAbsolute, jlong time) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4896 // Optional fast-path check: |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4897 // Return immediately if a permit is available. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4898 if (_counter > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4899 _counter = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4900 OrderAccess::fence(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4901 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4902 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4903 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4904 Thread* thread = Thread::current(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4905 assert(thread->is_Java_thread(), "Must be JavaThread"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4906 JavaThread *jt = (JavaThread *)thread; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4907 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4908 // 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
|
4909 // Check interrupt before trying to wait |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4910 if (Thread::is_interrupted(thread, false)) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4911 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4912 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4913 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4914 // Next, demultiplex/decode time arguments |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4915 timespec absTime; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4916 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
|
4917 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4918 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4919 if (time > 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4920 unpackTime(&absTime, isAbsolute, time); |
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 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4923 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4924 // Enter safepoint region |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4925 // Beware of deadlocks such as 6317397. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4926 // 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
|
4927 // 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
|
4928 // 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
|
4929 // the ThreadBlockInVM() CTOR and DTOR may grab Threads_lock. |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4930 ThreadBlockInVM tbivm(jt); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4931 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4932 // 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
|
4933 // unblocking. Also. check interrupt before trying wait |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4934 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
|
4935 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4936 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4937 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4938 int status; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4939 if (_counter > 0) { // no wait needed |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4940 _counter = 0; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4941 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4942 assert (status == 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4943 OrderAccess::fence(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4944 return; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4945 } |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4946 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4947 #ifdef ASSERT |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4948 // 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
|
4949 // (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
|
4950 sigset_t oldsigs; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4951 sigset_t* allowdebug_blocked = os::Aix::allowdebug_blocked_signals(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4952 pthread_sigmask(SIG_BLOCK, allowdebug_blocked, &oldsigs); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4953 #endif |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4954 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4955 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4956 jt->set_suspend_equivalent(); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4957 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4958 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4959 if (time == 0) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4960 status = pthread_cond_wait (_cond, _mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4961 } else { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4962 status = pthread_cond_timedwait (_cond, _mutex, &absTime); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4963 if (status != 0 && WorkAroundNPTLTimedWaitHang) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4964 pthread_cond_destroy (_cond); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4965 pthread_cond_init (_cond, NULL); |
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 assert_status(status == 0 || status == EINTR || |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4969 status == ETIME || status == ETIMEDOUT, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4970 status, "cond_timedwait"); |
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8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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diff
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|
4971 |
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diff
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|
4972 #ifdef ASSERT |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4973 pthread_sigmask(SIG_SETMASK, &oldsigs, NULL); |
666e6ce3976c
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simonis
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diff
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|
4974 #endif |
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parents:
diff
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|
4975 |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4976 _counter = 0; |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4977 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4978 assert_status(status == 0, status, "invariant"); |
666e6ce3976c
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simonis
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diff
changeset
|
4979 // If externally suspended while waiting, re-suspend |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4980 if (jt->handle_special_suspend_equivalent_condition()) { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4981 jt->java_suspend_self(); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4982 } |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4983 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4984 OrderAccess::fence(); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4985 } |
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parents:
diff
changeset
|
4986 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4987 void Parker::unpark() { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4988 int s, status; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4989 status = pthread_mutex_lock(_mutex); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4990 assert (status == 0, "invariant"); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4991 s = _counter; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4992 _counter = 1; |
666e6ce3976c
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simonis
parents:
diff
changeset
|
4993 if (s < 1) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4994 if (WorkAroundNPTLTimedWaitHang) { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4995 status = pthread_cond_signal (_cond); |
666e6ce3976c
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parents:
diff
changeset
|
4996 assert (status == 0, "invariant"); |
666e6ce3976c
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parents:
diff
changeset
|
4997 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
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parents:
diff
changeset
|
4998 assert (status == 0, "invariant"); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
4999 } else { |
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parents:
diff
changeset
|
5000 status = pthread_mutex_unlock(_mutex); |
666e6ce3976c
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diff
changeset
|
5001 assert (status == 0, "invariant"); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5002 status = pthread_cond_signal (_cond); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5003 assert (status == 0, "invariant"); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5004 } |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5005 } else { |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5006 pthread_mutex_unlock(_mutex); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5007 assert (status == 0, "invariant"); |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5008 } |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5009 } |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5010 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5011 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5012 extern char** environ; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5013 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5014 // Run the specified command in a separate process. Return its exit value, |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5015 // or -1 on failure (e.g. can't fork a new process). |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5016 // 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
|
5017 // doesn't block SIGINT et al. |
666e6ce3976c
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simonis
parents:
diff
changeset
|
5018 int os::fork_and_exec(char* cmd) { |
14421
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5019 char * argv[4] = {"sh", "-c", cmd, NULL}; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5020 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5021 pid_t pid = fork(); |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5022 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5023 if (pid < 0) { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5024 // fork failed |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5025 return -1; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5026 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5027 } else if (pid == 0) { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5028 // child process |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5029 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5030 // 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
|
5031 execve("/usr/bin/sh", argv, environ); |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5032 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5033 // execve failed |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5034 _exit(-1); |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5035 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5036 } else { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5037 // 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
|
5038 // care about the actual exit code, for now. |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5039 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5040 int status; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5041 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5042 // 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
|
5043 // the child has already exited. */ |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5044 while (waitpid(pid, &status, 0) < 0) { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5045 switch (errno) { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5046 case ECHILD: return 0; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5047 case EINTR: break; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5048 default: return -1; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5049 } |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5050 } |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5051 |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5052 if (WIFEXITED(status)) { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5053 // The child exited normally; get its exit code. |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5054 return WEXITSTATUS(status); |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5055 } else if (WIFSIGNALED(status)) { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5056 // The child exited because of a signal |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5057 // The best value to return is 0x80 + signal number, |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5058 // 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
|
5059 // it allows callers to distinguish between process exit and |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5060 // process death by signal. |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5061 return 0x80 + WTERMSIG(status); |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5062 } else { |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5063 // Unknown exit code; pass it through |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5064 return status; |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5065 } |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5066 } |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5067 // Remove warning. |
3068270ba476
8026487: PPC64: Implement 'os::fork_and_exec' on AIX
simonis
parents:
14415
diff
changeset
|
5068 return -1; |
14415
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 // is_headless_jre() |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5072 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5073 // 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
|
5074 // 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
|
5075 // |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5076 // 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
|
5077 // as libawt.so, and renamed libawt_xawt.so |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5078 bool os::is_headless_jre() { |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5079 struct stat statbuf; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5080 char buf[MAXPATHLEN]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5081 char libmawtpath[MAXPATHLEN]; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5082 const char *xawtstr = "/xawt/libmawt.so"; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5083 const char *new_xawtstr = "/libawt_xawt.so"; |
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 char *p; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5086 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5087 // Get path to libjvm.so |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5088 os::jvm_path(buf, sizeof(buf)); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5089 |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5090 // Get rid of libjvm.so |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5091 p = strrchr(buf, '/'); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5092 if (p == NULL) return false; |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5093 else *p = '\0'; |
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 // Get rid of client or server |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
changeset
|
5096 p = strrchr(buf, '/'); |
666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
simonis
parents:
diff
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|
5097 if (p == NULL) return false; |
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5098 else *p = '\0'; |
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5099 |
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5100 // check xawt/libmawt.so |
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5101 strcpy(libmawtpath, buf); |
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5102 strcat(libmawtpath, xawtstr); |
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5103 if (::stat(libmawtpath, &statbuf) == 0) return false; |
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5104 |
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5105 // check libawt_xawt.so |
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5106 strcpy(libmawtpath, buf); |
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5107 strcat(libmawtpath, new_xawtstr); |
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5108 if (::stat(libmawtpath, &statbuf) == 0) return false; |
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5109 |
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5110 return true; |
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5111 } |
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5112 |
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5113 // Get the default path to the core file |
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5114 // Returns the length of the string |
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5115 int os::get_core_path(char* buffer, size_t bufferSize) { |
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5116 const char* p = get_current_directory(buffer, bufferSize); |
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5117 |
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5118 if (p == NULL) { |
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5119 assert(p != NULL, "failed to get current directory"); |
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5120 return 0; |
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5121 } |
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5122 |
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5123 return strlen(buffer); |
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5124 } |
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5125 |
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5126 #ifndef PRODUCT |
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5127 void TestReserveMemorySpecial_test() { |
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5128 // No tests available for this platform |
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5129 } |
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5130 #endif |