1 /* 2 * Copyright (c) 1998, 2016, 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 unsigned int Abstract_VM_Version::_L1_data_cache_line_size = 0; 54 int Abstract_VM_Version::_reserve_for_allocation_prefetch = 0; 55 56 #ifndef HOTSPOT_RELEASE_VERSION 57 #error HOTSPOT_RELEASE_VERSION must be defined 58 #endif 59 #ifndef JRE_RELEASE_VERSION 60 #error JRE_RELEASE_VERSION must be defined 61 #endif 62 #ifndef HOTSPOT_BUILD_TARGET 63 #error HOTSPOT_BUILD_TARGET must be defined 64 #endif 65 66 #ifdef PRODUCT 67 #define VM_RELEASE HOTSPOT_RELEASE_VERSION 68 #else 69 #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET 70 #endif 71 72 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention 73 // <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>] 74 int Abstract_VM_Version::_vm_major_version = 0; 75 int Abstract_VM_Version::_vm_minor_version = 0; 76 int Abstract_VM_Version::_vm_build_number = 0; 77 bool Abstract_VM_Version::_initialized = false; 78 int Abstract_VM_Version::_parallel_worker_threads = 0; 79 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false; 80 81 void Abstract_VM_Version::initialize() { 82 if (_initialized) { 83 return; 84 } 85 char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION); 86 87 // Expecting the next vm_version format: 88 // <major_ver>.<minor_ver>-b<nn>[-<identifier>] 89 char* vm_major_ver = vm_version; 90 assert(isdigit(vm_major_ver[0]),"wrong vm major version number"); 91 char* vm_minor_ver = strchr(vm_major_ver, '.'); 92 assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number"); 93 vm_minor_ver[0] = '\0'; // terminate vm_major_ver 94 vm_minor_ver += 1; 95 char* vm_build_num = strchr(vm_minor_ver, '-'); 96 assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number"); 97 vm_build_num[0] = '\0'; // terminate vm_minor_ver 98 vm_build_num += 2; 99 100 _vm_major_version = atoi(vm_major_ver); 101 _vm_minor_version = atoi(vm_minor_ver); 102 _vm_build_number = atoi(vm_build_num); 103 104 os::free(vm_version); 105 _initialized = true; 106 } 107 108 #if defined(_LP64) 109 #define VMLP "64-Bit " 110 #else 111 #define VMLP "" 112 #endif 113 114 #ifndef VMTYPE 115 #ifdef TIERED 116 #define VMTYPE "Server" 117 #else // TIERED 118 #ifdef ZERO 119 #ifdef SHARK 120 #define VMTYPE "Shark" 121 #else // SHARK 122 #define VMTYPE "Zero" 123 #endif // SHARK 124 #else // ZERO 125 #define VMTYPE COMPILER1_PRESENT("Client") \ 126 COMPILER2_PRESENT("Server") 127 #endif // ZERO 128 #endif // TIERED 129 #endif 130 131 #ifndef HOTSPOT_VM_DISTRO 132 #error HOTSPOT_VM_DISTRO must be defined 133 #endif 134 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP EMBEDDED_ONLY("Embedded ") VMTYPE " VM" 135 136 const char* Abstract_VM_Version::vm_name() { 137 return VMNAME; 138 } 139 140 141 const char* Abstract_VM_Version::vm_vendor() { 142 #ifdef VENDOR 143 return VENDOR; 144 #else 145 return JDK_Version::is_gte_jdk17x_version() ? 146 "Oracle Corporation" : "Sun Microsystems Inc."; 147 #endif 148 } 149 150 151 const char* Abstract_VM_Version::vm_info_string() { 152 switch (Arguments::mode()) { 153 case Arguments::_int: 154 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode"; 155 case Arguments::_mixed: 156 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode"; 157 case Arguments::_comp: 158 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode"; 159 }; 160 ShouldNotReachHere(); 161 return ""; 162 } 163 164 // NOTE: do *not* use stringStream. this function is called by 165 // fatal error handler. if the crash is in native thread, 166 // stringStream cannot get resource allocated and will SEGV. 167 const char* Abstract_VM_Version::vm_release() { 168 return VM_RELEASE; 169 } 170 171 // NOTE: do *not* use stringStream. this function is called by 172 // fatal error handlers. if the crash is in native thread, 173 // stringStream cannot get resource allocated and will SEGV. 174 const char* Abstract_VM_Version::jre_release_version() { 175 return JRE_RELEASE_VERSION; 176 } 177 178 #define OS LINUX_ONLY("linux") \ 179 WINDOWS_ONLY("windows") \ 180 SOLARIS_ONLY("solaris") \ 181 AIX_ONLY("aix") \ 182 BSD_ONLY("bsd") 183 184 #ifndef CPU 185 #ifdef ZERO 186 #define CPU ZERO_LIBARCH 187 #elif defined(PPC64) 188 #if defined(VM_LITTLE_ENDIAN) 189 #define CPU "ppc64le" 190 #else 191 #define CPU "ppc64" 192 #endif 193 #else 194 #define CPU IA32_ONLY("x86") \ 195 IA64_ONLY("ia64") \ 196 AMD64_ONLY("amd64") \ 197 SPARC_ONLY("sparc") 198 #endif // ZERO 199 #endif 200 201 const char *Abstract_VM_Version::vm_platform_string() { 202 return OS "-" CPU; 203 } 204 205 const char* Abstract_VM_Version::internal_vm_info_string() { 206 #ifndef HOTSPOT_BUILD_USER 207 #define HOTSPOT_BUILD_USER unknown 208 #endif 209 210 #ifndef HOTSPOT_BUILD_COMPILER 211 #ifdef _MSC_VER 212 #if _MSC_VER == 1100 213 #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0" 214 #elif _MSC_VER == 1200 215 #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0" 216 #elif _MSC_VER == 1310 217 #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)" 218 #elif _MSC_VER == 1400 219 #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)" 220 #elif _MSC_VER == 1500 221 #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)" 222 #elif _MSC_VER == 1600 223 #define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)" 224 #elif _MSC_VER == 1700 225 #define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)" 226 #elif _MSC_VER == 1800 227 #define HOTSPOT_BUILD_COMPILER "MS VC++ 12.0 (VS2013)" 228 #elif _MSC_VER == 1900 229 #define HOTSPOT_BUILD_COMPILER "MS VC++ 14.0 (VS2015)" 230 #elif _MSC_VER == 1912 231 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.5 (VS2017)" 232 #elif _MSC_VER == 1913 233 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.6 (VS2017)" 234 #else 235 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER) 236 #endif 237 #elif defined(__SUNPRO_CC) 238 #if __SUNPRO_CC == 0x420 239 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2" 240 #elif __SUNPRO_CC == 0x500 241 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT) 242 #elif __SUNPRO_CC == 0x520 243 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT) 244 #elif __SUNPRO_CC == 0x580 245 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8" 246 #elif __SUNPRO_CC == 0x590 247 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9" 248 #elif __SUNPRO_CC == 0x5100 249 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1" 250 #elif __SUNPRO_CC == 0x5120 251 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3" 252 #else 253 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC) 254 #endif 255 #elif defined(__GNUC__) 256 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__ 257 #elif defined(__IBMCPP__) 258 #define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__) 259 260 #else 261 #define HOTSPOT_BUILD_COMPILER "unknown compiler" 262 #endif 263 #endif 264 265 #ifndef FLOAT_ARCH 266 #if defined(__SOFTFP__) 267 #define FLOAT_ARCH_STR "-sflt" 268 #else 269 #define FLOAT_ARCH_STR "" 270 #endif 271 #else 272 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH) 273 #endif 274 275 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH_STR 276 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__ 277 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER; 278 } 279 280 const char *Abstract_VM_Version::vm_build_user() { 281 return HOTSPOT_BUILD_USER; 282 } 283 284 unsigned int Abstract_VM_Version::jvm_version() { 285 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) | 286 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) | 287 (Abstract_VM_Version::vm_build_number() & 0xFF); 288 } 289 290 291 void VM_Version_init() { 292 VM_Version::initialize(); 293 294 #ifndef PRODUCT 295 if (PrintMiscellaneous && Verbose) { 296 os::print_cpu_info(tty); 297 } 298 #endif 299 } 300 301 unsigned int Abstract_VM_Version::nof_parallel_worker_threads( 302 unsigned int num, 303 unsigned int den, 304 unsigned int switch_pt) { 305 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 306 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0"); 307 // For very large machines, there are diminishing returns 308 // for large numbers of worker threads. Instead of 309 // hogging the whole system, use a fraction of the workers for every 310 // processor after the first 8. For example, on a 72 cpu machine 311 // and a chosen fraction of 5/8 312 // use 8 + (72 - 8) * (5/8) == 48 worker threads. 313 unsigned int ncpus = (unsigned int) os::initial_active_processor_count(); 314 return (ncpus <= switch_pt) ? 315 ncpus : 316 (switch_pt + ((ncpus - switch_pt) * num) / den); 317 } else { 318 return ParallelGCThreads; 319 } 320 } 321 322 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() { 323 return nof_parallel_worker_threads(5, 8, 8); 324 } 325 326 327 // Does not set the _initialized flag since it is 328 // a global flag. 329 unsigned int Abstract_VM_Version::parallel_worker_threads() { 330 if (!_parallel_worker_threads_initialized) { 331 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 332 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads(); 333 } else { 334 _parallel_worker_threads = ParallelGCThreads; 335 } 336 _parallel_worker_threads_initialized = true; 337 } 338 return _parallel_worker_threads; 339 }