annotate src/share/vm/runtime/vm_version.cpp @ 18096:ca6d25be853b jdk8u25-b13

8044269: Analysis of archive files. Summary: Add checksum verification. Reviewed-by: iklam, dholmes, mschoene
author jiangli
date Tue, 12 Aug 2014 17:46:16 -0400
parents e2722a66aba7
children d8041d695d19
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1 /*
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2 * Copyright (c) 1998, 2013, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "memory/universe.hpp"
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27 #include "oops/oop.inline.hpp"
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28 #include "runtime/arguments.hpp"
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29 #ifdef TARGET_ARCH_x86
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30 # include "vm_version_x86.hpp"
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31 #endif
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32 #ifdef TARGET_ARCH_sparc
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33 # include "vm_version_sparc.hpp"
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34 #endif
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35 #ifdef TARGET_ARCH_zero
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36 # include "vm_version_zero.hpp"
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37 #endif
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38 #ifdef TARGET_ARCH_arm
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39 # include "vm_version_arm.hpp"
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40 #endif
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41 #ifdef TARGET_ARCH_ppc
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42 # include "vm_version_ppc.hpp"
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43 #endif
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45 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
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46 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();
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47 bool Abstract_VM_Version::_supports_cx8 = false;
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48 bool Abstract_VM_Version::_supports_atomic_getset4 = false;
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49 bool Abstract_VM_Version::_supports_atomic_getset8 = false;
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50 bool Abstract_VM_Version::_supports_atomic_getadd4 = false;
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51 bool Abstract_VM_Version::_supports_atomic_getadd8 = false;
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52 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
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53 int Abstract_VM_Version::_reserve_for_allocation_prefetch = 0;
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54
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55 #ifndef HOTSPOT_RELEASE_VERSION
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56 #error HOTSPOT_RELEASE_VERSION must be defined
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57 #endif
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58 #ifndef JRE_RELEASE_VERSION
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59 #error JRE_RELEASE_VERSION must be defined
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60 #endif
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61 #ifndef HOTSPOT_BUILD_TARGET
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62 #error HOTSPOT_BUILD_TARGET must be defined
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63 #endif
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64
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65 #ifdef PRODUCT
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66 #define VM_RELEASE HOTSPOT_RELEASE_VERSION
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67 #else
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68 #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET
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69 #endif
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70
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71 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention
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72 // <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>]
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73 int Abstract_VM_Version::_vm_major_version = 0;
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74 int Abstract_VM_Version::_vm_minor_version = 0;
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75 int Abstract_VM_Version::_vm_build_number = 0;
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76 bool Abstract_VM_Version::_initialized = false;
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77 int Abstract_VM_Version::_parallel_worker_threads = 0;
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78 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
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79
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80 void Abstract_VM_Version::initialize() {
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81 if (_initialized) {
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82 return;
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83 }
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84 char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION);
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85
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86 // Expecting the next vm_version format:
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87 // <major_ver>.<minor_ver>-b<nn>[-<identifier>]
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88 char* vm_major_ver = vm_version;
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89 assert(isdigit(vm_major_ver[0]),"wrong vm major version number");
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90 char* vm_minor_ver = strchr(vm_major_ver, '.');
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91 assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number");
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92 vm_minor_ver[0] = '\0'; // terminate vm_major_ver
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93 vm_minor_ver += 1;
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94 char* vm_build_num = strchr(vm_minor_ver, '-');
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95 assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number");
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96 vm_build_num[0] = '\0'; // terminate vm_minor_ver
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97 vm_build_num += 2;
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98
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99 _vm_major_version = atoi(vm_major_ver);
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100 _vm_minor_version = atoi(vm_minor_ver);
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101 _vm_build_number = atoi(vm_build_num);
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102
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103 os::free(vm_version);
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104 _initialized = true;
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105 }
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106
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107 #if defined(_LP64)
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108 #define VMLP "64-Bit "
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109 #else
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110 #define VMLP ""
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111 #endif
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112
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113 #ifndef VMTYPE
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114 #ifdef TIERED
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115 #define VMTYPE "Server"
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116 #else // TIERED
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117 #ifdef ZERO
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118 #ifdef SHARK
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119 #define VMTYPE "Shark"
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120 #else // SHARK
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121 #define VMTYPE "Zero"
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122 #endif // SHARK
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123 #else // ZERO
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124 #define VMTYPE COMPILER1_PRESENT("Client") \
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125 COMPILER2_PRESENT("Server")
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126 #endif // ZERO
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127 #endif // TIERED
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128 #endif
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129
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130 #ifndef HOTSPOT_VM_DISTRO
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131 #error HOTSPOT_VM_DISTRO must be defined
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132 #endif
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133 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP EMBEDDED_ONLY("Embedded ") VMTYPE " VM"
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134
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135 const char* Abstract_VM_Version::vm_name() {
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136 return VMNAME;
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137 }
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138
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139
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140 const char* Abstract_VM_Version::vm_vendor() {
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141 #ifdef VENDOR
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142 return XSTR(VENDOR);
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143 #else
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144 return JDK_Version::is_gte_jdk17x_version() ?
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145 "Oracle Corporation" : "Sun Microsystems Inc.";
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146 #endif
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147 }
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148
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149
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150 const char* Abstract_VM_Version::vm_info_string() {
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151 switch (Arguments::mode()) {
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152 case Arguments::_int:
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153 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
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154 case Arguments::_mixed:
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155 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode";
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156 case Arguments::_comp:
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157 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
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158 };
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159 ShouldNotReachHere();
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160 return "";
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161 }
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162
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163 // NOTE: do *not* use stringStream. this function is called by
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164 // fatal error handler. if the crash is in native thread,
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165 // stringStream cannot get resource allocated and will SEGV.
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166 const char* Abstract_VM_Version::vm_release() {
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167 return VM_RELEASE;
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168 }
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169
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170 // NOTE: do *not* use stringStream. this function is called by
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171 // fatal error handlers. if the crash is in native thread,
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172 // stringStream cannot get resource allocated and will SEGV.
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173 const char* Abstract_VM_Version::jre_release_version() {
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174 return JRE_RELEASE_VERSION;
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175 }
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176
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177 #define OS LINUX_ONLY("linux") \
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178 WINDOWS_ONLY("windows") \
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179 SOLARIS_ONLY("solaris") \
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180 AIX_ONLY("aix") \
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181 BSD_ONLY("bsd")
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182
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183 #ifdef ZERO
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184 #define CPU ZERO_LIBARCH
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185 #else
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186 #define CPU IA32_ONLY("x86") \
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187 IA64_ONLY("ia64") \
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188 AMD64_ONLY("amd64") \
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189 ARM_ONLY("arm") \
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190 PPC32_ONLY("ppc") \
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191 PPC64_ONLY("ppc64") \
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192 SPARC_ONLY("sparc")
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193 #endif // ZERO
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194
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195 const char *Abstract_VM_Version::vm_platform_string() {
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196 return OS "-" CPU;
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197 }
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198
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199 const char* Abstract_VM_Version::internal_vm_info_string() {
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200 #ifndef HOTSPOT_BUILD_USER
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201 #define HOTSPOT_BUILD_USER unknown
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202 #endif
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203
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204 #ifndef HOTSPOT_BUILD_COMPILER
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205 #ifdef _MSC_VER
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206 #if _MSC_VER == 1100
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207 #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"
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208 #elif _MSC_VER == 1200
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209 #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"
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210 #elif _MSC_VER == 1310
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211 #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)"
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212 #elif _MSC_VER == 1400
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213 #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"
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214 #elif _MSC_VER == 1500
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215 #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"
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216 #elif _MSC_VER == 1600
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217 #define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)"
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218 #elif _MSC_VER == 1700
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219 #define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)"
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220 #else
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221 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
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222 #endif
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223 #elif defined(__SUNPRO_CC)
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224 #if __SUNPRO_CC == 0x420
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225 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
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226 #elif __SUNPRO_CC == 0x500
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227 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
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228 #elif __SUNPRO_CC == 0x520
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229 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
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230 #elif __SUNPRO_CC == 0x580
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231 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
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232 #elif __SUNPRO_CC == 0x590
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233 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
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234 #elif __SUNPRO_CC == 0x5100
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235 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
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236 #elif __SUNPRO_CC == 0x5120
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237 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3"
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238 #else
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239 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
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240 #endif
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241 #elif defined(__GNUC__)
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242 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
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243 #elif defined(__IBMCPP__)
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244 #define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__)
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245
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246 #else
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247 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
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248 #endif
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249 #endif
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250
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251 #ifndef FLOAT_ARCH
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252 #if defined(__SOFTFP__)
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253 #define FLOAT_ARCH_STR "-sflt"
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254 #elif defined(E500V2)
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255 #define FLOAT_ARCH_STR "-e500v2"
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256 #elif defined(ARM)
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257 #define FLOAT_ARCH_STR "-vfp"
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258 #elif defined(PPC32)
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259 #define FLOAT_ARCH_STR "-hflt"
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260 #else
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261 #define FLOAT_ARCH_STR ""
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262 #endif
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263 #else
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264 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH)
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265 #endif
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266
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267 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH_STR
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268 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__
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269 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;
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270 }
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271
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272 const char *Abstract_VM_Version::vm_build_user() {
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273 return HOTSPOT_BUILD_USER;
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274 }
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275
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276 unsigned int Abstract_VM_Version::jvm_version() {
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277 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
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278 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
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279 (Abstract_VM_Version::vm_build_number() & 0xFF);
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280 }
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281
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282
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283 void VM_Version_init() {
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284 VM_Version::initialize();
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285
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286 #ifndef PRODUCT
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287 if (PrintMiscellaneous && Verbose) {
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288 os::print_cpu_info(tty);
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289 }
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290 #endif
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291 }
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292
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293 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
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294 unsigned int num,
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295 unsigned int den,
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296 unsigned int switch_pt) {
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297 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
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298 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
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299 // For very large machines, there are diminishing returns
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300 // for large numbers of worker threads. Instead of
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301 // hogging the whole system, use a fraction of the workers for every
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302 // processor after the first 8. For example, on a 72 cpu machine
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303 // and a chosen fraction of 5/8
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304 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
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305 unsigned int ncpus = (unsigned int) os::active_processor_count();
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306 return (ncpus <= switch_pt) ?
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307 ncpus :
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308 (switch_pt + ((ncpus - switch_pt) * num) / den);
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309 } else {
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310 return ParallelGCThreads;
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311 }
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312 }
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313
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314 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
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315 return nof_parallel_worker_threads(5, 8, 8);
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316 }
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317
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318
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319 // Does not set the _initialized flag since it is
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320 // a global flag.
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321 unsigned int Abstract_VM_Version::parallel_worker_threads() {
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322 if (!_parallel_worker_threads_initialized) {
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323 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
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324 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
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325 } else {
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326 _parallel_worker_threads = ParallelGCThreads;
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327 }
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328 _parallel_worker_threads_initialized = true;
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329 }
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330 return _parallel_worker_threads;
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331 }