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 45 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release(); 46 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string(); 47 bool Abstract_VM_Version::_supports_cx8 = false; 48 bool Abstract_VM_Version::_supports_atomic_getset4 = false; 49 bool Abstract_VM_Version::_supports_atomic_getset8 = false; 50 bool Abstract_VM_Version::_supports_atomic_getadd4 = false; 51 bool Abstract_VM_Version::_supports_atomic_getadd8 = false; 52 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U; 53 int 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>] 73 int Abstract_VM_Version::_vm_major_version = 0; 74 int Abstract_VM_Version::_vm_minor_version = 0; 75 int Abstract_VM_Version::_vm_build_number = 0; 76 bool Abstract_VM_Version::_initialized = false; 77 int Abstract_VM_Version::_parallel_worker_threads = 0; 78 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false; 79 80 void 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" 134 135 const char* Abstract_VM_Version::vm_name() { 136 return VMNAME; 137 } 138 139 140 const 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 } 148 149 150 const 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. 166 const 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. 173 const 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 PPC_ONLY("ppc") \ 190 SPARC_ONLY("sparc") 191 #endif // ZERO 192 193 const char *Abstract_VM_Version::vm_platform_string() { 194 return OS "-" CPU; 195 } 196 197 const 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 #elif __SUNPRO_CC == 0x5120 235 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3" 236 #else 237 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC) 238 #endif 239 #elif defined(__GNUC__) 240 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__ 241 #else 242 #define HOTSPOT_BUILD_COMPILER "unknown compiler" 243 #endif 244 #endif 245 246 #ifndef FLOAT_ARCH 247 #if defined(__SOFTFP__) 248 #define FLOAT_ARCH_STR "-sflt" 249 #elif defined(E500V2) 250 #define FLOAT_ARCH_STR "-e500v2" 251 #elif defined(ARM) 252 #define FLOAT_ARCH_STR "-vfp" 253 #elif defined(PPC) 254 #define FLOAT_ARCH_STR "-hflt" 255 #else 256 #define FLOAT_ARCH_STR "" 257 #endif 258 #else 259 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH) 260 #endif 261 262 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH_STR 263 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__ 264 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER; 265 } 266 267 const char *Abstract_VM_Version::vm_build_user() { 268 return HOTSPOT_BUILD_USER; 269 } 270 271 unsigned int Abstract_VM_Version::jvm_version() { 272 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) | 273 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) | 274 (Abstract_VM_Version::vm_build_number() & 0xFF); 275 } 276 277 278 void VM_Version_init() { 279 VM_Version::initialize(); 280 281 #ifndef PRODUCT 282 if (PrintMiscellaneous && Verbose) { 283 os::print_cpu_info(tty); 284 } 285 #endif 286 } 287 288 unsigned int Abstract_VM_Version::nof_parallel_worker_threads( 289 unsigned int num, 290 unsigned int den, 291 unsigned int switch_pt) { 292 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 293 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0"); 294 // For very large machines, there are diminishing returns 295 // for large numbers of worker threads. Instead of 296 // hogging the whole system, use a fraction of the workers for every 297 // processor after the first 8. For example, on a 72 cpu machine 298 // and a chosen fraction of 5/8 299 // use 8 + (72 - 8) * (5/8) == 48 worker threads. 300 unsigned int ncpus = (unsigned int) os::active_processor_count(); 301 return (ncpus <= switch_pt) ? 302 ncpus : 303 (switch_pt + ((ncpus - switch_pt) * num) / den); 304 } else { 305 return ParallelGCThreads; 306 } 307 } 308 309 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() { 310 return nof_parallel_worker_threads(5, 8, 8); 311 } 312 313 314 // Does not set the _initialized flag since it is 315 // a global flag. 316 unsigned int Abstract_VM_Version::parallel_worker_threads() { 317 if (!_parallel_worker_threads_initialized) { 318 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 319 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads(); 320 } else { 321 _parallel_worker_threads = ParallelGCThreads; 322 } 323 _parallel_worker_threads_initialized = true; 324 } 325 return _parallel_worker_threads; 326 }