vm_version.cpp revision 5944:0f03ff49c720
1/* 2 * Copyright (c) 1998, 2013, 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 "precompiled.hpp" 26#include "memory/universe.hpp" 27#include "oops/oop.inline.hpp" 28#include "runtime/arguments.hpp" 29#ifdef TARGET_ARCH_x86 30# include "vm_version_x86.hpp" 31#endif 32#ifdef TARGET_ARCH_sparc 33# include "vm_version_sparc.hpp" 34#endif 35#ifdef TARGET_ARCH_zero 36# include "vm_version_zero.hpp" 37#endif 38#ifdef TARGET_ARCH_arm 39# include "vm_version_arm.hpp" 40#endif 41#ifdef TARGET_ARCH_ppc 42# include "vm_version_ppc.hpp" 43#endif 44 45const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release(); 46const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string(); 47bool Abstract_VM_Version::_supports_cx8 = false; 48bool Abstract_VM_Version::_supports_atomic_getset4 = false; 49bool Abstract_VM_Version::_supports_atomic_getset8 = false; 50bool Abstract_VM_Version::_supports_atomic_getadd4 = false; 51bool Abstract_VM_Version::_supports_atomic_getadd8 = false; 52unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U; 53int Abstract_VM_Version::_reserve_for_allocation_prefetch = 0; 54 55#ifndef HOTSPOT_RELEASE_VERSION 56 #error HOTSPOT_RELEASE_VERSION must be defined 57#endif 58#ifndef JRE_RELEASE_VERSION 59 #error JRE_RELEASE_VERSION must be defined 60#endif 61#ifndef HOTSPOT_BUILD_TARGET 62 #error HOTSPOT_BUILD_TARGET must be defined 63#endif 64 65#ifdef PRODUCT 66 #define VM_RELEASE HOTSPOT_RELEASE_VERSION 67#else 68 #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET 69#endif 70 71// HOTSPOT_RELEASE_VERSION must follow the release version naming convention 72// <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>] 73int Abstract_VM_Version::_vm_major_version = 0; 74int Abstract_VM_Version::_vm_minor_version = 0; 75int Abstract_VM_Version::_vm_build_number = 0; 76bool Abstract_VM_Version::_initialized = false; 77int Abstract_VM_Version::_parallel_worker_threads = 0; 78bool Abstract_VM_Version::_parallel_worker_threads_initialized = false; 79 80void Abstract_VM_Version::initialize() { 81 if (_initialized) { 82 return; 83 } 84 char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION); 85 86 // Expecting the next vm_version format: 87 // <major_ver>.<minor_ver>-b<nn>[-<identifier>] 88 char* vm_major_ver = vm_version; 89 assert(isdigit(vm_major_ver[0]),"wrong vm major version number"); 90 char* vm_minor_ver = strchr(vm_major_ver, '.'); 91 assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number"); 92 vm_minor_ver[0] = '\0'; // terminate vm_major_ver 93 vm_minor_ver += 1; 94 char* vm_build_num = strchr(vm_minor_ver, '-'); 95 assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number"); 96 vm_build_num[0] = '\0'; // terminate vm_minor_ver 97 vm_build_num += 2; 98 99 _vm_major_version = atoi(vm_major_ver); 100 _vm_minor_version = atoi(vm_minor_ver); 101 _vm_build_number = atoi(vm_build_num); 102 103 os::free(vm_version); 104 _initialized = true; 105} 106 107#if defined(_LP64) 108 #define VMLP "64-Bit " 109#else 110 #define VMLP "" 111#endif 112 113#ifndef VMTYPE 114 #ifdef TIERED 115 #define VMTYPE "Server" 116 #else // TIERED 117 #ifdef ZERO 118 #ifdef SHARK 119 #define VMTYPE "Shark" 120 #else // SHARK 121 #define VMTYPE "Zero" 122 #endif // SHARK 123 #else // ZERO 124 #define VMTYPE COMPILER1_PRESENT("Client") \ 125 COMPILER2_PRESENT("Server") 126 #endif // ZERO 127 #endif // TIERED 128#endif 129 130#ifndef HOTSPOT_VM_DISTRO 131 #error HOTSPOT_VM_DISTRO must be defined 132#endif 133#define VMNAME HOTSPOT_VM_DISTRO " " VMLP EMBEDDED_ONLY("Embedded ") VMTYPE " VM" 134 135const char* Abstract_VM_Version::vm_name() { 136 return VMNAME; 137} 138 139 140const char* Abstract_VM_Version::vm_vendor() { 141#ifdef VENDOR 142 return XSTR(VENDOR); 143#else 144 return JDK_Version::is_gte_jdk17x_version() ? 145 "Oracle Corporation" : "Sun Microsystems Inc."; 146#endif 147} 148 149 150const char* Abstract_VM_Version::vm_info_string() { 151 switch (Arguments::mode()) { 152 case Arguments::_int: 153 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode"; 154 case Arguments::_mixed: 155 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode"; 156 case Arguments::_comp: 157 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode"; 158 }; 159 ShouldNotReachHere(); 160 return ""; 161} 162 163// NOTE: do *not* use stringStream. this function is called by 164// fatal error handler. if the crash is in native thread, 165// stringStream cannot get resource allocated and will SEGV. 166const char* Abstract_VM_Version::vm_release() { 167 return VM_RELEASE; 168} 169 170// NOTE: do *not* use stringStream. this function is called by 171// fatal error handlers. if the crash is in native thread, 172// stringStream cannot get resource allocated and will SEGV. 173const char* Abstract_VM_Version::jre_release_version() { 174 return JRE_RELEASE_VERSION; 175} 176 177#define OS LINUX_ONLY("linux") \ 178 WINDOWS_ONLY("windows") \ 179 SOLARIS_ONLY("solaris") \ 180 BSD_ONLY("bsd") 181 182#ifdef ZERO 183#define CPU ZERO_LIBARCH 184#else 185#define CPU IA32_ONLY("x86") \ 186 IA64_ONLY("ia64") \ 187 AMD64_ONLY("amd64") \ 188 ARM_ONLY("arm") \ 189 PPC32_ONLY("ppc") \ 190 SPARC_ONLY("sparc") 191#endif // ZERO 192 193const char *Abstract_VM_Version::vm_platform_string() { 194 return OS "-" CPU; 195} 196 197const char* Abstract_VM_Version::internal_vm_info_string() { 198 #ifndef HOTSPOT_BUILD_USER 199 #define HOTSPOT_BUILD_USER unknown 200 #endif 201 202 #ifndef HOTSPOT_BUILD_COMPILER 203 #ifdef _MSC_VER 204 #if _MSC_VER == 1100 205 #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0" 206 #elif _MSC_VER == 1200 207 #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0" 208 #elif _MSC_VER == 1310 209 #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)" 210 #elif _MSC_VER == 1400 211 #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)" 212 #elif _MSC_VER == 1500 213 #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)" 214 #elif _MSC_VER == 1600 215 #define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)" 216 #elif _MSC_VER == 1700 217 #define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)" 218 #else 219 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER) 220 #endif 221 #elif defined(__SUNPRO_CC) 222 #if __SUNPRO_CC == 0x420 223 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2" 224 #elif __SUNPRO_CC == 0x500 225 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT) 226 #elif __SUNPRO_CC == 0x520 227 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT) 228 #elif __SUNPRO_CC == 0x580 229 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8" 230 #elif __SUNPRO_CC == 0x590 231 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9" 232 #elif __SUNPRO_CC == 0x5100 233 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1" 234 #else 235 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC) 236 #endif 237 #elif defined(__GNUC__) 238 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__ 239 #else 240 #define HOTSPOT_BUILD_COMPILER "unknown compiler" 241 #endif 242 #endif 243 244 #ifndef FLOAT_ARCH 245 #if defined(__SOFTFP__) 246 #define FLOAT_ARCH_STR "-sflt" 247 #elif defined(E500V2) 248 #define FLOAT_ARCH_STR "-e500v2" 249 #elif defined(ARM) 250 #define FLOAT_ARCH_STR "-vfp" 251 #elif defined(PPC32) 252 #define FLOAT_ARCH_STR "-hflt" 253 #else 254 #define FLOAT_ARCH_STR "" 255 #endif 256 #else 257 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH) 258 #endif 259 260 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH_STR 261 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__ 262 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER; 263} 264 265const char *Abstract_VM_Version::vm_build_user() { 266 return HOTSPOT_BUILD_USER; 267} 268 269unsigned int Abstract_VM_Version::jvm_version() { 270 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) | 271 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) | 272 (Abstract_VM_Version::vm_build_number() & 0xFF); 273} 274 275 276void VM_Version_init() { 277 VM_Version::initialize(); 278 279#ifndef PRODUCT 280 if (PrintMiscellaneous && Verbose) { 281 os::print_cpu_info(tty); 282 } 283#endif 284} 285 286unsigned int Abstract_VM_Version::nof_parallel_worker_threads( 287 unsigned int num, 288 unsigned int den, 289 unsigned int switch_pt) { 290 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 291 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0"); 292 // For very large machines, there are diminishing returns 293 // for large numbers of worker threads. Instead of 294 // hogging the whole system, use a fraction of the workers for every 295 // processor after the first 8. For example, on a 72 cpu machine 296 // and a chosen fraction of 5/8 297 // use 8 + (72 - 8) * (5/8) == 48 worker threads. 298 unsigned int ncpus = (unsigned int) os::active_processor_count(); 299 return (ncpus <= switch_pt) ? 300 ncpus : 301 (switch_pt + ((ncpus - switch_pt) * num) / den); 302 } else { 303 return ParallelGCThreads; 304 } 305} 306 307unsigned int Abstract_VM_Version::calc_parallel_worker_threads() { 308 return nof_parallel_worker_threads(5, 8, 8); 309} 310 311 312// Does not set the _initialized flag since it is 313// a global flag. 314unsigned int Abstract_VM_Version::parallel_worker_threads() { 315 if (!_parallel_worker_threads_initialized) { 316 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 317 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads(); 318 } else { 319 _parallel_worker_threads = ParallelGCThreads; 320 } 321 _parallel_worker_threads_initialized = true; 322 } 323 return _parallel_worker_threads; 324} 325