1 /* 2 * Copyright (c) 1998, 2009, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 # include "incls/_precompiled.incl" 26 # include "incls/_vm_version.cpp.incl" 27 28 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release(); 29 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string(); 30 bool Abstract_VM_Version::_supports_cx8 = false; 31 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U; 32 33 #ifndef HOTSPOT_RELEASE_VERSION 34 #error HOTSPOT_RELEASE_VERSION must be defined 35 #endif 36 #ifndef JRE_RELEASE_VERSION 37 #error JRE_RELEASE_VERSION must be defined 38 #endif 39 #ifndef HOTSPOT_BUILD_TARGET 40 #error HOTSPOT_BUILD_TARGET must be defined 41 #endif 42 43 #ifdef PRODUCT 44 #define VM_RELEASE HOTSPOT_RELEASE_VERSION 45 #else 46 #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET 47 #endif 48 49 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention 50 // <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>] 51 int Abstract_VM_Version::_vm_major_version = 0; 52 int Abstract_VM_Version::_vm_minor_version = 0; 53 int Abstract_VM_Version::_vm_build_number = 0; 54 bool Abstract_VM_Version::_initialized = false; 55 int Abstract_VM_Version::_parallel_worker_threads = 0; 56 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false; 57 58 void Abstract_VM_Version::initialize() { 59 if (_initialized) { 60 return; 61 } 62 char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION); 63 64 // Expecting the next vm_version format: 65 // <major_ver>.<minor_ver>-b<nn>[-<identifier>] 66 char* vm_major_ver = vm_version; 67 assert(isdigit(vm_major_ver[0]),"wrong vm major version number"); 68 char* vm_minor_ver = strchr(vm_major_ver, '.'); 69 assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number"); 70 vm_minor_ver[0] = '\0'; // terminate vm_major_ver 71 vm_minor_ver += 1; 72 char* vm_build_num = strchr(vm_minor_ver, '-'); 73 assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number"); 74 vm_build_num[0] = '\0'; // terminate vm_minor_ver 75 vm_build_num += 2; 76 77 _vm_major_version = atoi(vm_major_ver); 78 _vm_minor_version = atoi(vm_minor_ver); 79 _vm_build_number = atoi(vm_build_num); 80 81 os::free(vm_version); 82 _initialized = true; 83 } 84 85 #if defined(_LP64) 86 #define VMLP "64-Bit " 87 #else 88 #define VMLP "" 89 #endif 90 91 #ifdef KERNEL 92 #define VMTYPE "Kernel" 93 #else // KERNEL 94 #ifdef TIERED 95 #define VMTYPE "Server" 96 #else // TIERED 97 #ifdef ZERO 98 #ifdef SHARK 99 #define VMTYPE "Shark" 100 #else // SHARK 101 #define VMTYPE "Zero" 102 #endif // SHARK 103 #else // ZERO 104 #define VMTYPE COMPILER1_PRESENT("Client") \ 105 COMPILER2_PRESENT("Server") 106 #endif // ZERO 107 #endif // TIERED 108 #endif // KERNEL 109 110 #ifndef HOTSPOT_VM_DISTRO 111 #error HOTSPOT_VM_DISTRO must be defined 112 #endif 113 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM" 114 115 const char* Abstract_VM_Version::vm_name() { 116 return VMNAME; 117 } 118 119 120 const char* Abstract_VM_Version::vm_vendor() { 121 #ifdef VENDOR 122 return XSTR(VENDOR); 123 #else 124 return "Sun Microsystems Inc."; 125 #endif 126 } 127 128 129 const char* Abstract_VM_Version::vm_info_string() { 130 switch (Arguments::mode()) { 131 case Arguments::_int: 132 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode"; 133 case Arguments::_mixed: 134 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode"; 135 case Arguments::_comp: 136 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode"; 137 }; 138 ShouldNotReachHere(); 139 return ""; 140 } 141 142 // NOTE: do *not* use stringStream. this function is called by 143 // fatal error handler. if the crash is in native thread, 144 // stringStream cannot get resource allocated and will SEGV. 145 const char* Abstract_VM_Version::vm_release() { 146 return VM_RELEASE; 147 } 148 149 #define OS LINUX_ONLY("linux") \ 150 WINDOWS_ONLY("windows") \ 151 SOLARIS_ONLY("solaris") 152 153 #ifdef ZERO 154 #define CPU ZERO_LIBARCH 155 #else 156 #define CPU IA32_ONLY("x86") \ 157 IA64_ONLY("ia64") \ 158 AMD64_ONLY("amd64") \ 159 SPARC_ONLY("sparc") 160 #endif // ZERO 161 162 const char *Abstract_VM_Version::vm_platform_string() { 163 return OS "-" CPU; 164 } 165 166 const char* Abstract_VM_Version::internal_vm_info_string() { 167 #ifndef HOTSPOT_BUILD_USER 168 #define HOTSPOT_BUILD_USER unknown 169 #endif 170 171 #ifndef HOTSPOT_BUILD_COMPILER 172 #ifdef _MSC_VER 173 #if _MSC_VER == 1100 174 #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0" 175 #elif _MSC_VER == 1200 176 #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0" 177 #elif _MSC_VER == 1310 178 #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)" 179 #elif _MSC_VER == 1400 180 #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)" 181 #elif _MSC_VER == 1500 182 #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)" 183 #else 184 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER) 185 #endif 186 #elif defined(__SUNPRO_CC) 187 #if __SUNPRO_CC == 0x420 188 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2" 189 #elif __SUNPRO_CC == 0x500 190 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT) 191 #elif __SUNPRO_CC == 0x520 192 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT) 193 #elif __SUNPRO_CC == 0x580 194 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8" 195 #elif __SUNPRO_CC == 0x590 196 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9" 197 #elif __SUNPRO_CC == 0x5100 198 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1" 199 #else 200 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC) 201 #endif 202 #elif defined(__GNUC__) 203 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__ 204 #else 205 #define HOTSPOT_BUILD_COMPILER "unknown compiler" 206 #endif 207 #endif 208 209 210 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU 211 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__ 212 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER; 213 } 214 215 unsigned int Abstract_VM_Version::jvm_version() { 216 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) | 217 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) | 218 (Abstract_VM_Version::vm_build_number() & 0xFF); 219 } 220 221 222 void VM_Version_init() { 223 VM_Version::initialize(); 224 225 #ifndef PRODUCT 226 if (PrintMiscellaneous && Verbose) { 227 os::print_cpu_info(tty); 228 } 229 #endif 230 } 231 232 unsigned int Abstract_VM_Version::nof_parallel_worker_threads( 233 unsigned int num, 234 unsigned int den, 235 unsigned int switch_pt) { 236 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 237 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0"); 238 // For very large machines, there are diminishing returns 239 // for large numbers of worker threads. Instead of 240 // hogging the whole system, use a fraction of the workers for every 241 // processor after the first 8. For example, on a 72 cpu machine 242 // and a chosen fraction of 5/8 243 // use 8 + (72 - 8) * (5/8) == 48 worker threads. 244 unsigned int ncpus = (unsigned int) os::active_processor_count(); 245 return (ncpus <= switch_pt) ? 246 ncpus : 247 (switch_pt + ((ncpus - switch_pt) * num) / den); 248 } else { 249 return ParallelGCThreads; 250 } 251 } 252 253 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() { 254 return nof_parallel_worker_threads(5, 8, 8); 255 } 256 257 258 // Does not set the _initialized flag since it is 259 // a global flag. 260 unsigned int Abstract_VM_Version::parallel_worker_threads() { 261 if (!_parallel_worker_threads_initialized) { 262 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 263 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads(); 264 } else { 265 _parallel_worker_threads = ParallelGCThreads; 266 } 267 _parallel_worker_threads_initialized = true; 268 } 269 return _parallel_worker_threads; 270 }