1 /* 2 * Copyright (c) 1998, 2017, 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 #else 220 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER) 221 #endif 222 #elif defined(__SUNPRO_CC) 223 #if __SUNPRO_CC == 0x420 224 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2" 225 #elif __SUNPRO_CC == 0x500 226 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT) 227 #elif __SUNPRO_CC == 0x520 228 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT) 229 #elif __SUNPRO_CC == 0x580 230 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8" 231 #elif __SUNPRO_CC == 0x590 232 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9" 233 #elif __SUNPRO_CC == 0x5100 234 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1" 235 #elif __SUNPRO_CC == 0x5120 236 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3" 237 #elif __SUNPRO_CC == 0x5130 238 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u4" 239 #else 240 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC) 241 #endif 242 #elif defined(__GNUC__) 243 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__ 244 #elif defined(__IBMCPP__) 245 #define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__) 246 247 #else 248 #define HOTSPOT_BUILD_COMPILER "unknown compiler" 249 #endif 250 #endif 251 252 #ifndef FLOAT_ARCH 253 #if defined(__SOFTFP__) 254 #define FLOAT_ARCH_STR "-sflt" 255 #else 256 #define FLOAT_ARCH_STR "" 257 #endif 258 #else 259 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH) 260 #endif 261 262 #define INTERNAL_VERSION_SUFFIX VM_RELEASE ")" \ 263 " for " OS "-" CPU FLOAT_ARCH_STR \ 264 " JRE (" VERSION_STRING "), built on " __DATE__ " " __TIME__ \ 265 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER 266 267 return strcmp(DEBUG_LEVEL, "release") == 0 268 ? VMNAME " (" INTERNAL_VERSION_SUFFIX 269 : VMNAME " (" DEBUG_LEVEL " " INTERNAL_VERSION_SUFFIX; 270 } 271 272 const char *Abstract_VM_Version::vm_build_user() { 273 return HOTSPOT_BUILD_USER; 274 } 275 276 const char *Abstract_VM_Version::jdk_debug_level() { 277 return DEBUG_LEVEL; 278 } 279 280 const char *Abstract_VM_Version::printable_jdk_debug_level() { 281 // Debug level is not printed for "release" builds 282 return strcmp(DEBUG_LEVEL, "release") == 0 ? "" : DEBUG_LEVEL " "; 283 } 284 285 unsigned int Abstract_VM_Version::jvm_version() { 286 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) | 287 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) | 288 ((Abstract_VM_Version::vm_security_version() & 0xFF) << 8) | 289 (Abstract_VM_Version::vm_build_number() & 0xFF); 290 } 291 292 293 void VM_Version_init() { 294 VM_Version::initialize(); 295 296 if (log_is_enabled(Info, os, cpu)) { 297 char buf[1024]; 298 ResourceMark rm; 299 LogStream ls(Log(os, cpu)::info()); 300 os::print_cpu_info(&ls, buf, sizeof(buf)); 301 } 302 } 303 304 unsigned int Abstract_VM_Version::nof_parallel_worker_threads( 305 unsigned int num, 306 unsigned int den, 307 unsigned int switch_pt) { 308 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 309 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0"); 310 unsigned int threads; 311 // For very large machines, there are diminishing returns 312 // for large numbers of worker threads. Instead of 313 // hogging the whole system, use a fraction of the workers for every 314 // processor after the first 8. For example, on a 72 cpu machine 315 // and a chosen fraction of 5/8 316 // use 8 + (72 - 8) * (5/8) == 48 worker threads. 317 unsigned int ncpus = (unsigned int) os::initial_active_processor_count(); 318 threads = (ncpus <= switch_pt) ? 319 ncpus : 320 (switch_pt + ((ncpus - switch_pt) * num) / den); 321 #ifndef _LP64 322 // On 32-bit binaries the virtual address space available to the JVM 323 // is usually limited to 2-3 GB (depends on the platform). 324 // Do not use up address space with too many threads (stacks and per-thread 325 // data). Note that x86 apps running on Win64 have 2 stacks per thread. 326 // GC may more generally scale down threads by max heap size (etc), but the 327 // consequences of over-provisioning threads are higher on 32-bit JVMS, 328 // so add hard limit here: 329 threads = MIN2(threads, (2*switch_pt)); 330 #endif 331 return threads; 332 } else { 333 return ParallelGCThreads; 334 } 335 } 336 337 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() { 338 return nof_parallel_worker_threads(5, 8, 8); 339 } 340 341 342 // Does not set the _initialized flag since it is 343 // a global flag. 344 unsigned int Abstract_VM_Version::parallel_worker_threads() { 345 if (!_parallel_worker_threads_initialized) { 346 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 347 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads(); 348 } else { 349 _parallel_worker_threads = ParallelGCThreads; 350 } 351 _parallel_worker_threads_initialized = true; 352 } 353 return _parallel_worker_threads; 354 }