1 /* 2 * Copyright (c) 1998, 2018, 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 "logging/log.hpp" 27 #include "logging/logStream.hpp" 28 #include "memory/universe.hpp" 29 #include "oops/oop.inline.hpp" 30 #include "runtime/arguments.hpp" 31 #include "runtime/vm_version.hpp" 32 33 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release(); 34 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string(); 35 36 uint64_t Abstract_VM_Version::_features = 0; 37 const char* Abstract_VM_Version::_features_string = ""; 38 39 bool Abstract_VM_Version::_supports_cx8 = false; 40 bool Abstract_VM_Version::_supports_atomic_getset4 = false; 41 bool Abstract_VM_Version::_supports_atomic_getset8 = false; 42 bool Abstract_VM_Version::_supports_atomic_getadd4 = false; 43 bool Abstract_VM_Version::_supports_atomic_getadd8 = false; 44 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U; 45 unsigned int Abstract_VM_Version::_L1_data_cache_line_size = 0; 46 47 #ifndef HOTSPOT_VERSION_STRING 48 #error HOTSPOT_VERSION_STRING must be defined 49 #endif 50 51 #ifndef VERSION_FEATURE 52 #error VERSION_FEATURE must be defined 53 #endif 54 #ifndef VERSION_INTERIM 55 #error VERSION_INTERIM must be defined 56 #endif 57 #ifndef VERSION_UPDATE 58 #error VERSION_UPDATE must be defined 59 #endif 60 #ifndef VERSION_PATCH 61 #error VERSION_PATCH must be defined 62 #endif 63 #ifndef VERSION_BUILD 64 #error VERSION_BUILD must be defined 65 #endif 66 67 #ifndef VERSION_STRING 68 #error VERSION_STRING must be defined 69 #endif 70 71 #ifndef DEBUG_LEVEL 72 #error DEBUG_LEVEL must be defined 73 #endif 74 75 #define VM_RELEASE HOTSPOT_VERSION_STRING 76 77 // HOTSPOT_VERSION_STRING equals the JDK VERSION_STRING (unless overridden 78 // in a standalone build). 79 int Abstract_VM_Version::_vm_major_version = VERSION_FEATURE; 80 int Abstract_VM_Version::_vm_minor_version = VERSION_INTERIM; 81 int Abstract_VM_Version::_vm_security_version = VERSION_UPDATE; 82 int Abstract_VM_Version::_vm_patch_version = VERSION_PATCH; 83 int Abstract_VM_Version::_vm_build_number = VERSION_BUILD; 84 unsigned int Abstract_VM_Version::_parallel_worker_threads = 0; 85 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false; 86 87 #if defined(_LP64) 88 #define VMLP "64-Bit " 89 #else 90 #define VMLP "" 91 #endif 92 93 #ifndef VMTYPE 94 #ifdef TIERED 95 #define VMTYPE "Server" 96 #else // TIERED 97 #ifdef ZERO 98 #define VMTYPE "Zero" 99 #else // ZERO 100 #define VMTYPE COMPILER1_PRESENT("Client") \ 101 COMPILER2_PRESENT("Server") 102 #endif // ZERO 103 #endif // TIERED 104 #endif 105 106 #ifndef HOTSPOT_VM_DISTRO 107 #error HOTSPOT_VM_DISTRO must be defined 108 #endif 109 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM" 110 111 const char* Abstract_VM_Version::vm_name() { 112 return VMNAME; 113 } 114 115 116 const char* Abstract_VM_Version::vm_vendor() { 117 #ifdef VENDOR 118 return XSTR(VENDOR); 119 #else 120 return "Oracle Corporation"; 121 #endif 122 } 123 124 125 const char* Abstract_VM_Version::vm_info_string() { 126 switch (Arguments::mode()) { 127 case Arguments::_int: 128 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode"; 129 case Arguments::_mixed: 130 if (UseSharedSpaces) { 131 if (UseAOT) { 132 return "mixed mode, aot, sharing"; 133 #ifdef TIERED 134 } else if(is_client_compilation_mode_vm()) { 135 return "mixed mode, emulated-client, sharing"; 136 #endif 137 } else { 138 return "mixed mode, sharing"; 139 } 140 } else { 141 if (UseAOT) { 142 return "mixed mode, aot"; 143 #ifdef TIERED 144 } else if(is_client_compilation_mode_vm()) { 145 return "mixed mode, emulated-client"; 146 #endif 147 } else { 148 return "mixed mode"; 149 } 150 } 151 case Arguments::_comp: 152 #ifdef TIERED 153 if (is_client_compilation_mode_vm()) { 154 return UseSharedSpaces ? "compiled mode, emulated-client, sharing" : "compiled mode, emulated-client"; 155 } 156 #endif 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 VERSION_STRING; 175 } 176 177 #define OS LINUX_ONLY("linux") \ 178 WINDOWS_ONLY("windows") \ 179 SOLARIS_ONLY("solaris") \ 180 AIX_ONLY("aix") \ 181 BSD_ONLY("bsd") 182 183 #ifndef CPU 184 #ifdef ZERO 185 #define CPU ZERO_LIBARCH 186 #elif defined(PPC64) 187 #if defined(VM_LITTLE_ENDIAN) 188 #define CPU "ppc64le" 189 #else 190 #define CPU "ppc64" 191 #endif // PPC64 192 #else 193 #define CPU AARCH64_ONLY("aarch64") \ 194 AMD64_ONLY("amd64") \ 195 IA32_ONLY("x86") \ 196 IA64_ONLY("ia64") \ 197 S390_ONLY("s390") \ 198 SPARC_ONLY("sparc") 199 #endif // !ZERO 200 #endif // !CPU 201 202 const char *Abstract_VM_Version::vm_platform_string() { 203 return OS "-" CPU; 204 } 205 206 const char* Abstract_VM_Version::internal_vm_info_string() { 207 #ifndef HOTSPOT_BUILD_USER 208 #define HOTSPOT_BUILD_USER unknown 209 #endif 210 211 #ifndef HOTSPOT_BUILD_COMPILER 212 #ifdef _MSC_VER 213 #if _MSC_VER == 1600 214 #define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)" 215 #elif _MSC_VER == 1700 216 #define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)" 217 #elif _MSC_VER == 1800 218 #define HOTSPOT_BUILD_COMPILER "MS VC++ 12.0 (VS2013)" 219 #elif _MSC_VER == 1900 220 #define HOTSPOT_BUILD_COMPILER "MS VC++ 14.0 (VS2015)" 221 #elif _MSC_VER == 1912 222 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.5 (VS2017)" 223 #else 224 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER) 225 #endif 226 #elif defined(__SUNPRO_CC) 227 #if __SUNPRO_CC == 0x420 228 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2" 229 #elif __SUNPRO_CC == 0x500 230 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT) 231 #elif __SUNPRO_CC == 0x520 232 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT) 233 #elif __SUNPRO_CC == 0x580 234 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8" 235 #elif __SUNPRO_CC == 0x590 236 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9" 237 #elif __SUNPRO_CC == 0x5100 238 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1" 239 #elif __SUNPRO_CC == 0x5120 240 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3" 241 #elif __SUNPRO_CC == 0x5130 242 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u4" 243 #else 244 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC) 245 #endif 246 #elif defined(__GNUC__) 247 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__ 248 #elif defined(__IBMCPP__) 249 #define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__) 250 251 #else 252 #define HOTSPOT_BUILD_COMPILER "unknown compiler" 253 #endif 254 #endif 255 256 #ifndef FLOAT_ARCH 257 #if defined(__SOFTFP__) 258 #define FLOAT_ARCH_STR "-sflt" 259 #else 260 #define FLOAT_ARCH_STR "" 261 #endif 262 #else 263 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH) 264 #endif 265 266 #define INTERNAL_VERSION_SUFFIX VM_RELEASE ")" \ 267 " for " OS "-" CPU FLOAT_ARCH_STR \ 268 " JRE (" VERSION_STRING "), built on " __DATE__ " " __TIME__ \ 269 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER 270 271 return strcmp(DEBUG_LEVEL, "release") == 0 272 ? VMNAME " (" INTERNAL_VERSION_SUFFIX 273 : VMNAME " (" DEBUG_LEVEL " " INTERNAL_VERSION_SUFFIX; 274 } 275 276 const char *Abstract_VM_Version::vm_build_user() { 277 return HOTSPOT_BUILD_USER; 278 } 279 280 const char *Abstract_VM_Version::jdk_debug_level() { 281 return DEBUG_LEVEL; 282 } 283 284 const char *Abstract_VM_Version::printable_jdk_debug_level() { 285 // Debug level is not printed for "release" builds 286 return strcmp(DEBUG_LEVEL, "release") == 0 ? "" : DEBUG_LEVEL " "; 287 } 288 289 unsigned int Abstract_VM_Version::jvm_version() { 290 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) | 291 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) | 292 ((Abstract_VM_Version::vm_security_version() & 0xFF) << 8) | 293 (Abstract_VM_Version::vm_build_number() & 0xFF); 294 } 295 296 297 void VM_Version_init() { 298 VM_Version::initialize(); 299 300 if (log_is_enabled(Info, os, cpu)) { 301 char buf[1024]; 302 ResourceMark rm; 303 LogStream ls(Log(os, cpu)::info()); 304 os::print_cpu_info(&ls, buf, sizeof(buf)); 305 } 306 } 307 308 unsigned int Abstract_VM_Version::nof_parallel_worker_threads( 309 unsigned int num, 310 unsigned int den, 311 unsigned int switch_pt) { 312 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 313 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0"); 314 unsigned int threads; 315 // For very large machines, there are diminishing returns 316 // for large numbers of worker threads. Instead of 317 // hogging the whole system, use a fraction of the workers for every 318 // processor after the first 8. For example, on a 72 cpu machine 319 // and a chosen fraction of 5/8 320 // use 8 + (72 - 8) * (5/8) == 48 worker threads. 321 unsigned int ncpus = (unsigned int) os::initial_active_processor_count(); 322 threads = (ncpus <= switch_pt) ? 323 ncpus : 324 (switch_pt + ((ncpus - switch_pt) * num) / den); 325 #ifndef _LP64 326 // On 32-bit binaries the virtual address space available to the JVM 327 // is usually limited to 2-3 GB (depends on the platform). 328 // Do not use up address space with too many threads (stacks and per-thread 329 // data). Note that x86 apps running on Win64 have 2 stacks per thread. 330 // GC may more generally scale down threads by max heap size (etc), but the 331 // consequences of over-provisioning threads are higher on 32-bit JVMS, 332 // so add hard limit here: 333 threads = MIN2(threads, (2*switch_pt)); 334 #endif 335 return threads; 336 } else { 337 return ParallelGCThreads; 338 } 339 } 340 341 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() { 342 return nof_parallel_worker_threads(5, 8, 8); 343 } 344 345 346 // Does not set the _initialized flag since it is 347 // a global flag. 348 unsigned int Abstract_VM_Version::parallel_worker_threads() { 349 if (!_parallel_worker_threads_initialized) { 350 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 351 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads(); 352 } else { 353 _parallel_worker_threads = ParallelGCThreads; 354 } 355 _parallel_worker_threads_initialized = true; 356 } 357 return _parallel_worker_threads; 358 }