annotate src/share/vm/runtime/vm_version.cpp @ 196:d1605aabd0a1 jdk7-b30

6719955: Update copyright year Summary: Update copyright year for files that have been modified in 2008 Reviewed-by: ohair, tbell
author xdono
date Wed, 02 Jul 2008 12:55:16 -0700
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children c3a720eefe82
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1 /*
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2 * Copyright 1998-2008 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 # include "incls/_precompiled.incl"
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26 # include "incls/_vm_version.cpp.incl"
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27
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28 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
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29 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();
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30 bool Abstract_VM_Version::_supports_cx8 = false;
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31 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
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32
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33 #ifndef HOTSPOT_RELEASE_VERSION
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34 #error HOTSPOT_RELEASE_VERSION must be defined
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35 #endif
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36 #ifndef JRE_RELEASE_VERSION
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37 #error JRE_RELEASE_VERSION must be defined
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38 #endif
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39 #ifndef HOTSPOT_BUILD_TARGET
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40 #error HOTSPOT_BUILD_TARGET must be defined
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41 #endif
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42
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43 #ifdef PRODUCT
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44 #define VM_RELEASE HOTSPOT_RELEASE_VERSION
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45 #else
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46 #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET
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47 #endif
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48
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49 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention
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50 // <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>]
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51 int Abstract_VM_Version::_vm_major_version = 0;
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52 int Abstract_VM_Version::_vm_minor_version = 0;
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53 int Abstract_VM_Version::_vm_build_number = 0;
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54 bool Abstract_VM_Version::_initialized = false;
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55 int Abstract_VM_Version::_parallel_worker_threads = 0;
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56 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
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57
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58 void Abstract_VM_Version::initialize() {
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59 if (_initialized) {
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60 return;
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61 }
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62 char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION);
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63
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64 // Expecting the next vm_version format:
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65 // <major_ver>.<minor_ver>-b<nn>[-<identifier>]
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66 char* vm_major_ver = vm_version;
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67 assert(isdigit(vm_major_ver[0]),"wrong vm major version number");
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68 char* vm_minor_ver = strchr(vm_major_ver, '.');
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69 assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number");
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70 vm_minor_ver[0] = '\0'; // terminate vm_major_ver
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71 vm_minor_ver += 1;
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72 char* vm_build_num = strchr(vm_minor_ver, '-');
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73 assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number");
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74 vm_build_num[0] = '\0'; // terminate vm_minor_ver
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75 vm_build_num += 2;
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76
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77 _vm_major_version = atoi(vm_major_ver);
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78 _vm_minor_version = atoi(vm_minor_ver);
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79 _vm_build_number = atoi(vm_build_num);
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80
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81 os::free(vm_version);
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82 _initialized = true;
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83 }
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84
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85 #if defined(_LP64)
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86 #define VMLP "64-Bit "
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87 #else
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88 #define VMLP ""
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89 #endif
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90
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91 #ifdef KERNEL
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92 #define VMTYPE "Kernel"
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93 #else // KERNEL
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94 #ifdef TIERED
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95 #define VMTYPE "Server"
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96 #else
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97 #define VMTYPE COMPILER1_PRESENT("Client") \
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98 COMPILER2_PRESENT("Server")
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99 #endif // TIERED
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100 #endif // KERNEL
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101
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102 #ifndef HOTSPOT_VM_DISTRO
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103 #error HOTSPOT_VM_DISTRO must be defined
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104 #endif
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105 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM"
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106
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107 const char* Abstract_VM_Version::vm_name() {
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108 return VMNAME;
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109 }
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110
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111
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112 const char* Abstract_VM_Version::vm_vendor() {
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113 #ifdef VENDOR
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114 return XSTR(VENDOR);
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115 #else
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116 return "Sun Microsystems Inc.";
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117 #endif
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118 }
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119
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120
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121 const char* Abstract_VM_Version::vm_info_string() {
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122 switch (Arguments::mode()) {
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123 case Arguments::_int:
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124 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
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125 case Arguments::_mixed:
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126 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode";
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127 case Arguments::_comp:
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128 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
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129 };
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130 ShouldNotReachHere();
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131 return "";
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132 }
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133
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134 // NOTE: do *not* use stringStream. this function is called by
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135 // fatal error handler. if the crash is in native thread,
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136 // stringStream cannot get resource allocated and will SEGV.
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137 const char* Abstract_VM_Version::vm_release() {
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138 return VM_RELEASE;
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139 }
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140
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141 #define OS LINUX_ONLY("linux") \
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142 WINDOWS_ONLY("windows") \
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143 SOLARIS_ONLY("solaris")
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144
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145 #define CPU IA32_ONLY("x86") \
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146 IA64_ONLY("ia64") \
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147 AMD64_ONLY("amd64") \
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148 SPARC_ONLY("sparc")
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149
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150 const char *Abstract_VM_Version::vm_platform_string() {
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151 return OS "-" CPU;
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152 }
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153
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154 const char* Abstract_VM_Version::internal_vm_info_string() {
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155 #ifndef HOTSPOT_BUILD_USER
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156 #define HOTSPOT_BUILD_USER unknown
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157 #endif
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158
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159 #ifndef HOTSPOT_BUILD_COMPILER
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160 #ifdef _MSC_VER
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161 #if _MSC_VER == 1100
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162 #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"
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163 #elif _MSC_VER == 1200
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164 #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"
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165 #elif _MSC_VER == 1310
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166 #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1"
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167 #elif _MSC_VER == 1400
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168 #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0"
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169 #else
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170 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
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171 #endif
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172 #elif defined(__SUNPRO_CC)
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173 #if __SUNPRO_CC == 0x420
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174 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
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175 #elif __SUNPRO_CC == 0x500
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176 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
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177 #elif __SUNPRO_CC == 0x520
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178 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
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179 #elif __SUNPRO_CC == 0x580
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180 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
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181 #elif __SUNPRO_CC == 0x590
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182 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
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183 #else
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184 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
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185 #endif
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186 #elif defined(__GNUC__)
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187 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
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188 #else
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189 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
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190 #endif
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191 #endif
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192
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193
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194 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU
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195 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__
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196 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;
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197 }
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198
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199 unsigned int Abstract_VM_Version::jvm_version() {
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200 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
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201 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
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202 (Abstract_VM_Version::vm_build_number() & 0xFF);
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203 }
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204
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205
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206 void VM_Version_init() {
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207 VM_Version::initialize();
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208
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209 #ifndef PRODUCT
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210 if (PrintMiscellaneous && Verbose) {
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211 os::print_cpu_info(tty);
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212 }
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213 #endif
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214 }
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215
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216 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
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217 unsigned int num,
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218 unsigned int den,
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219 unsigned int switch_pt) {
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220 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
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221 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
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222 // For very large machines, there are diminishing returns
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223 // for large numbers of worker threads. Instead of
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224 // hogging the whole system, use a fraction of the workers for every
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225 // processor after the first 8. For example, on a 72 cpu machine
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226 // and a chosen fraction of 5/8
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227 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
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228 unsigned int ncpus = (unsigned int) os::active_processor_count();
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229 return (ncpus <= switch_pt) ?
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230 ncpus :
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231 (switch_pt + ((ncpus - switch_pt) * num) / den);
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232 } else {
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233 return ParallelGCThreads;
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234 }
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235 }
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236
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237 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
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238 return nof_parallel_worker_threads(5, 8, 8);
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239 }
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240
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241
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242 // Does not set the _initialized flag since it is
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243 // a global flag.
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244 unsigned int Abstract_VM_Version::parallel_worker_threads() {
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245 if (!_parallel_worker_threads_initialized) {
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246 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
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247 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
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248 } else {
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249 _parallel_worker_threads = ParallelGCThreads;
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250 }
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251 _parallel_worker_threads_initialized = true;
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252 }
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253 return _parallel_worker_threads;
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254 }