Mercurial > hg > truffle
annotate src/share/vm/runtime/java.cpp @ 20804:7848fc12602b
Merge with jdk8u40-b25
| author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
|---|---|
| date | Tue, 07 Apr 2015 14:58:49 +0200 |
| parents | 3ad5d7a6adb5 833b0f92429a |
| children | be896a1983c0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/classLoader.hpp" | |
| 27 #include "classfile/symbolTable.hpp" | |
| 28 #include "classfile/systemDictionary.hpp" | |
| 29 #include "code/codeCache.hpp" | |
| 30 #include "compiler/compileBroker.hpp" | |
| 31 #include "compiler/compilerOracle.hpp" | |
| 32 #include "interpreter/bytecodeHistogram.hpp" | |
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33 #ifdef GRAAL |
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34 #include "graal/graalCompiler.hpp" |
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35 #include "graal/graalRuntime.hpp" |
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36 #endif |
| 1972 | 37 #include "memory/genCollectedHeap.hpp" |
| 38 #include "memory/oopFactory.hpp" | |
| 39 #include "memory/universe.hpp" | |
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40 #include "oops/constantPool.hpp" |
| 1972 | 41 #include "oops/generateOopMap.hpp" |
| 42 #include "oops/instanceKlass.hpp" | |
| 43 #include "oops/instanceOop.hpp" | |
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44 #include "oops/method.hpp" |
| 1972 | 45 #include "oops/objArrayOop.hpp" |
| 46 #include "oops/oop.inline.hpp" | |
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47 #include "oops/symbol.hpp" |
| 1972 | 48 #include "prims/jvmtiExport.hpp" |
| 49 #include "runtime/arguments.hpp" | |
| 50 #include "runtime/biasedLocking.hpp" | |
| 51 #include "runtime/compilationPolicy.hpp" | |
| 52 #include "runtime/fprofiler.hpp" | |
| 53 #include "runtime/init.hpp" | |
| 54 #include "runtime/interfaceSupport.hpp" | |
| 55 #include "runtime/java.hpp" | |
| 56 #include "runtime/memprofiler.hpp" | |
| 57 #include "runtime/sharedRuntime.hpp" | |
| 58 #include "runtime/statSampler.hpp" | |
|
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59 #include "runtime/sweeper.hpp" |
| 1972 | 60 #include "runtime/task.hpp" |
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61 #include "runtime/thread.inline.hpp" |
| 1972 | 62 #include "runtime/timer.hpp" |
| 63 #include "runtime/vm_operations.hpp" | |
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64 #include "services/memTracker.hpp" |
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65 #include "trace/tracing.hpp" |
| 1972 | 66 #include "utilities/dtrace.hpp" |
| 67 #include "utilities/globalDefinitions.hpp" | |
| 68 #include "utilities/histogram.hpp" | |
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69 #include "utilities/macros.hpp" |
| 1972 | 70 #include "utilities/vmError.hpp" |
| 71 #ifdef TARGET_ARCH_x86 | |
| 72 # include "vm_version_x86.hpp" | |
| 73 #endif | |
| 74 #ifdef TARGET_ARCH_sparc | |
| 75 # include "vm_version_sparc.hpp" | |
| 76 #endif | |
| 77 #ifdef TARGET_ARCH_zero | |
| 78 # include "vm_version_zero.hpp" | |
| 79 #endif | |
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80 #ifdef TARGET_ARCH_arm |
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81 # include "vm_version_arm.hpp" |
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82 #endif |
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83 #ifdef TARGET_ARCH_ppc |
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84 # include "vm_version_ppc.hpp" |
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85 #endif |
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86 #if INCLUDE_ALL_GCS |
| 1972 | 87 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp" |
| 88 #include "gc_implementation/parallelScavenge/psScavenge.hpp" | |
| 89 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
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90 #endif // INCLUDE_ALL_GCS |
| 1972 | 91 #ifdef COMPILER1 |
| 92 #include "c1/c1_Compiler.hpp" | |
| 93 #include "c1/c1_Runtime1.hpp" | |
| 94 #endif | |
| 95 #ifdef COMPILER2 | |
| 96 #include "code/compiledIC.hpp" | |
| 97 #include "compiler/methodLiveness.hpp" | |
| 98 #include "opto/compile.hpp" | |
| 99 #include "opto/indexSet.hpp" | |
| 100 #include "opto/runtime.hpp" | |
| 101 #endif | |
| 0 | 102 |
| 4006 | 103 #ifndef USDT2 |
| 0 | 104 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown); |
| 4006 | 105 #endif /* !USDT2 */ |
| 0 | 106 |
| 107 #ifndef PRODUCT | |
| 108 | |
| 109 // Statistics printing (method invocation histogram) | |
| 110 | |
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111 GrowableArray<Method*>* collected_invoked_methods; |
| 0 | 112 |
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113 void collect_invoked_methods(Method* m) { |
| 0 | 114 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) { |
| 115 collected_invoked_methods->push(m); | |
| 116 } | |
| 117 } | |
| 118 | |
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119 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
| 0 | 120 |
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121 GrowableArray<Method*>* collected_profiled_methods; |
| 0 | 122 |
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123 void collect_profiled_methods(Method* m) { |
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124 Thread* thread = Thread::current(); |
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125 // This HandleMark prevents a huge amount of handles from being added |
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126 // to the metadata_handles() array on the thread. |
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127 HandleMark hm(thread); |
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128 methodHandle mh(thread, m); |
| 0 | 129 if ((m->method_data() != NULL) && |
| 130 (PrintMethodData || CompilerOracle::should_print(mh))) { | |
| 131 collected_profiled_methods->push(m); | |
| 132 } | |
| 133 } | |
| 134 | |
| 135 | |
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136 int compare_methods(Method** a, Method** b) { |
| 0 | 137 // %%% there can be 32-bit overflow here |
| 138 return ((*b)->invocation_count() + (*b)->compiled_invocation_count()) | |
| 139 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()); | |
| 140 } | |
| 141 | |
| 142 | |
| 143 void print_method_invocation_histogram() { | |
| 144 ResourceMark rm; | |
| 145 HandleMark hm; | |
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146 collected_invoked_methods = new GrowableArray<Method*>(1024); |
| 0 | 147 SystemDictionary::methods_do(collect_invoked_methods); |
| 148 collected_invoked_methods->sort(&compare_methods); | |
| 149 // | |
| 150 tty->cr(); | |
| 151 tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff); | |
| 152 tty->cr(); | |
| 153 tty->print_cr("____Count_(I+C)____Method________________________Module_________________"); | |
| 154 unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0, | |
| 155 synch_total = 0, nativ_total = 0, acces_total = 0; | |
| 156 for (int index = 0; index < collected_invoked_methods->length(); index++) { | |
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157 Method* m = collected_invoked_methods->at(index); |
| 0 | 158 int c = m->invocation_count() + m->compiled_invocation_count(); |
| 159 if (c >= MethodHistogramCutoff) m->print_invocation_count(); | |
| 160 int_total += m->invocation_count(); | |
| 161 comp_total += m->compiled_invocation_count(); | |
| 162 if (m->is_final()) final_total += c; | |
| 163 if (m->is_static()) static_total += c; | |
| 164 if (m->is_synchronized()) synch_total += c; | |
| 165 if (m->is_native()) nativ_total += c; | |
| 166 if (m->is_accessor()) acces_total += c; | |
| 167 } | |
| 168 tty->cr(); | |
| 169 total = int_total + comp_total; | |
| 170 tty->print_cr("Invocations summary:"); | |
| 171 tty->print_cr("\t%9d (%4.1f%%) interpreted", int_total, 100.0 * int_total / total); | |
| 172 tty->print_cr("\t%9d (%4.1f%%) compiled", comp_total, 100.0 * comp_total / total); | |
| 173 tty->print_cr("\t%9d (100%%) total", total); | |
| 174 tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total, 100.0 * synch_total / total); | |
| 175 tty->print_cr("\t%9d (%4.1f%%) final", final_total, 100.0 * final_total / total); | |
| 176 tty->print_cr("\t%9d (%4.1f%%) static", static_total, 100.0 * static_total / total); | |
| 177 tty->print_cr("\t%9d (%4.1f%%) native", nativ_total, 100.0 * nativ_total / total); | |
| 178 tty->print_cr("\t%9d (%4.1f%%) accessor", acces_total, 100.0 * acces_total / total); | |
| 179 tty->cr(); | |
| 180 SharedRuntime::print_call_statistics(comp_total); | |
| 181 } | |
| 182 | |
| 183 void print_method_profiling_data() { | |
| 184 ResourceMark rm; | |
| 185 HandleMark hm; | |
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186 collected_profiled_methods = new GrowableArray<Method*>(1024); |
| 0 | 187 SystemDictionary::methods_do(collect_profiled_methods); |
| 188 collected_profiled_methods->sort(&compare_methods); | |
| 189 | |
| 190 int count = collected_profiled_methods->length(); | |
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191 int total_size = 0; |
| 0 | 192 if (count > 0) { |
| 193 for (int index = 0; index < count; index++) { | |
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194 Method* m = collected_profiled_methods->at(index); |
| 0 | 195 ttyLocker ttyl; |
| 196 tty->print_cr("------------------------------------------------------------------------"); | |
| 197 //m->print_name(tty); | |
| 198 m->print_invocation_count(); | |
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199 tty->print_cr(" mdo size: %d bytes", m->method_data()->size_in_bytes()); |
| 0 | 200 tty->cr(); |
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201 // Dump data on parameters if any |
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202 if (m->method_data() != NULL && m->method_data()->parameters_type_data() != NULL) { |
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203 tty->fill_to(2); |
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204 m->method_data()->parameters_type_data()->print_data_on(tty); |
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205 } |
| 0 | 206 m->print_codes(); |
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207 total_size += m->method_data()->size_in_bytes(); |
| 0 | 208 } |
| 209 tty->print_cr("------------------------------------------------------------------------"); | |
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210 tty->print_cr("Total MDO size: %d bytes", total_size); |
| 0 | 211 } |
| 212 } | |
| 213 | |
| 214 void print_bytecode_count() { | |
| 215 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
| 216 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value()); | |
| 217 } | |
| 218 } | |
| 219 | |
| 220 AllocStats alloc_stats; | |
| 221 | |
| 222 | |
| 223 | |
| 224 // General statistics printing (profiling ...) | |
| 225 void print_statistics() { | |
| 226 #ifdef ASSERT | |
| 227 | |
| 228 if (CountRuntimeCalls) { | |
| 229 extern Histogram *RuntimeHistogram; | |
| 230 RuntimeHistogram->print(); | |
| 231 } | |
| 232 | |
| 233 if (CountJNICalls) { | |
| 234 extern Histogram *JNIHistogram; | |
| 235 JNIHistogram->print(); | |
| 236 } | |
| 237 | |
| 238 if (CountJVMCalls) { | |
| 239 extern Histogram *JVMHistogram; | |
| 240 JVMHistogram->print(); | |
| 241 } | |
| 242 | |
| 243 #endif | |
| 244 | |
| 245 if (MemProfiling) { | |
| 246 MemProfiler::disengage(); | |
| 247 } | |
| 248 | |
| 249 if (CITime) { | |
| 250 CompileBroker::print_times(); | |
| 251 } | |
| 252 | |
| 253 #ifdef COMPILER1 | |
| 254 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
| 255 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics); | |
| 256 Runtime1::print_statistics(); | |
| 257 Deoptimization::print_statistics(); | |
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258 SharedRuntime::print_statistics(); |
| 0 | 259 } |
| 260 #endif /* COMPILER1 */ | |
| 261 | |
| 262 #ifdef COMPILER2 | |
| 263 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
| 264 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); | |
| 265 Compile::print_statistics(); | |
| 266 #ifndef COMPILER1 | |
| 267 Deoptimization::print_statistics(); | |
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268 SharedRuntime::print_statistics(); |
| 0 | 269 #endif //COMPILER1 |
| 270 os::print_statistics(); | |
| 271 } | |
| 272 | |
| 17780 | 273 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics || PrintPreciseRTMLockingStatistics) { |
| 0 | 274 OptoRuntime::print_named_counters(); |
| 275 } | |
| 276 | |
| 277 if (TimeLivenessAnalysis) { | |
| 278 MethodLiveness::print_times(); | |
| 279 } | |
| 280 #ifdef ASSERT | |
| 281 if (CollectIndexSetStatistics) { | |
| 282 IndexSet::print_statistics(); | |
| 283 } | |
| 284 #endif // ASSERT | |
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285 #else |
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286 #ifdef GRALL |
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287 #ifndef COMPILER1 |
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288 if ((TraceDeoptimization || LogVMOutput || LogCompilation) && UseCompiler) { |
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289 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && TraceDeoptimization); |
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290 Deoptimization::print_statistics(); |
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291 SharedRuntime::print_statistics(); |
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292 } |
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293 #endif |
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294 #endif |
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295 #endif |
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296 |
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297 if (PrintNMethodStatistics) { |
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298 nmethod::print_statistics(); |
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299 } |
| 0 | 300 if (CountCompiledCalls) { |
| 301 print_method_invocation_histogram(); | |
| 302 } | |
| 1918 | 303 if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) { |
| 0 | 304 print_method_profiling_data(); |
| 305 } | |
| 306 if (TimeCompiler) { | |
| 307 COMPILER2_PRESENT(Compile::print_timers();) | |
| 308 } | |
| 309 if (TimeCompilationPolicy) { | |
| 310 CompilationPolicy::policy()->print_time(); | |
| 311 } | |
| 312 if (TimeOopMap) { | |
| 313 GenerateOopMap::print_time(); | |
| 314 } | |
| 315 if (ProfilerCheckIntervals) { | |
| 316 PeriodicTask::print_intervals(); | |
| 317 } | |
| 318 if (PrintSymbolTableSizeHistogram) { | |
| 319 SymbolTable::print_histogram(); | |
| 320 } | |
| 321 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
| 322 BytecodeCounter::print(); | |
| 323 } | |
| 324 if (PrintBytecodePairHistogram) { | |
| 325 BytecodePairHistogram::print(); | |
| 326 } | |
| 327 | |
| 328 if (PrintCodeCache) { | |
| 329 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 330 CodeCache::print(); | |
| 331 } | |
| 332 | |
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333 if (PrintMethodFlushingStatistics) { |
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334 NMethodSweeper::print(); |
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335 } |
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336 |
| 0 | 337 if (PrintCodeCache2) { |
| 338 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 339 CodeCache::print_internals(); | |
| 340 } | |
| 341 | |
| 342 if (PrintClassStatistics) { | |
| 343 SystemDictionary::print_class_statistics(); | |
| 344 } | |
| 345 if (PrintMethodStatistics) { | |
| 346 SystemDictionary::print_method_statistics(); | |
| 347 } | |
| 348 | |
| 349 if (PrintVtableStats) { | |
| 350 klassVtable::print_statistics(); | |
| 351 klassItable::print_statistics(); | |
| 352 } | |
| 353 if (VerifyOops) { | |
| 354 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count()); | |
| 355 } | |
| 356 | |
| 357 print_bytecode_count(); | |
| 2250 | 358 if (PrintMallocStatistics) { |
| 0 | 359 tty->print("allocation stats: "); |
| 360 alloc_stats.print(); | |
| 361 tty->cr(); | |
| 362 } | |
| 363 | |
| 364 if (PrintSystemDictionaryAtExit) { | |
| 365 SystemDictionary::print(); | |
| 366 } | |
| 367 | |
| 368 if (PrintBiasedLockingStatistics) { | |
| 369 BiasedLocking::print_counters(); | |
| 370 } | |
| 371 | |
| 372 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
| 373 #ifdef COMPILER2 | |
| 374 if (ZapDeadCompiledLocals) { | |
| 375 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count); | |
| 376 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count); | |
| 377 } | |
| 378 #endif // COMPILER2 | |
| 379 #endif // ENABLE_ZAP_DEAD_LOCALS | |
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380 // Native memory tracking data |
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381 if (PrintNMTStatistics) { |
| 20360 | 382 MemTracker::final_report(tty); |
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383 } |
| 0 | 384 } |
| 385 | |
| 386 #else // PRODUCT MODE STATISTICS | |
| 387 | |
| 388 void print_statistics() { | |
| 389 | |
| 390 if (CITime) { | |
| 391 CompileBroker::print_times(); | |
| 392 } | |
|
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393 |
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394 if (PrintCodeCache) { |
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395 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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396 CodeCache::print(); |
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397 } |
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398 |
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399 if (PrintMethodFlushingStatistics) { |
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400 NMethodSweeper::print(); |
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401 } |
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402 |
| 0 | 403 #ifdef COMPILER2 |
| 17780 | 404 if (PrintPreciseBiasedLockingStatistics || PrintPreciseRTMLockingStatistics) { |
| 0 | 405 OptoRuntime::print_named_counters(); |
| 406 } | |
| 407 #endif | |
| 408 if (PrintBiasedLockingStatistics) { | |
| 409 BiasedLocking::print_counters(); | |
| 410 } | |
|
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411 if (PrintNMethodStatistics) { |
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412 nmethod::print_statistics(); |
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413 } |
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414 |
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415 // Native memory tracking data |
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416 if (PrintNMTStatistics) { |
| 20360 | 417 MemTracker::final_report(tty); |
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418 } |
| 0 | 419 } |
| 420 | |
| 421 #endif | |
| 422 | |
| 423 | |
| 424 // Helper class for registering on_exit calls through JVM_OnExit | |
| 425 | |
| 426 extern "C" { | |
| 427 typedef void (*__exit_proc)(void); | |
| 428 } | |
| 429 | |
| 6197 | 430 class ExitProc : public CHeapObj<mtInternal> { |
| 0 | 431 private: |
| 432 __exit_proc _proc; | |
| 433 // void (*_proc)(void); | |
| 434 ExitProc* _next; | |
| 435 public: | |
| 436 // ExitProc(void (*proc)(void)) { | |
| 437 ExitProc(__exit_proc proc) { | |
| 438 _proc = proc; | |
| 439 _next = NULL; | |
| 440 } | |
| 441 void evaluate() { _proc(); } | |
| 442 ExitProc* next() const { return _next; } | |
| 443 void set_next(ExitProc* next) { _next = next; } | |
| 444 }; | |
| 445 | |
| 446 | |
| 447 // Linked list of registered on_exit procedures | |
| 448 | |
| 449 static ExitProc* exit_procs = NULL; | |
| 450 | |
| 451 | |
| 452 extern "C" { | |
| 453 void register_on_exit_function(void (*func)(void)) { | |
| 454 ExitProc *entry = new ExitProc(func); | |
| 455 // Classic vm does not throw an exception in case the allocation failed, | |
| 456 if (entry != NULL) { | |
| 457 entry->set_next(exit_procs); | |
| 458 exit_procs = entry; | |
| 459 } | |
| 460 } | |
| 461 } | |
| 462 | |
| 463 // Note: before_exit() can be executed only once, if more than one threads | |
| 464 // are trying to shutdown the VM at the same time, only one thread | |
| 465 // can run before_exit() and all other threads must wait. | |
| 466 void before_exit(JavaThread * thread) { | |
| 467 #define BEFORE_EXIT_NOT_RUN 0 | |
| 468 #define BEFORE_EXIT_RUNNING 1 | |
| 469 #define BEFORE_EXIT_DONE 2 | |
| 470 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; | |
| 471 | |
| 472 // Note: don't use a Mutex to guard the entire before_exit(), as | |
| 473 // JVMTI post_thread_end_event and post_vm_death_event will run native code. | |
| 474 // A CAS or OSMutex would work just fine but then we need to manipulate | |
| 475 // thread state for Safepoint. Here we use Monitor wait() and notify_all() | |
| 476 // for synchronization. | |
| 477 { MutexLocker ml(BeforeExit_lock); | |
| 478 switch (_before_exit_status) { | |
| 479 case BEFORE_EXIT_NOT_RUN: | |
| 480 _before_exit_status = BEFORE_EXIT_RUNNING; | |
| 481 break; | |
| 482 case BEFORE_EXIT_RUNNING: | |
| 483 while (_before_exit_status == BEFORE_EXIT_RUNNING) { | |
| 484 BeforeExit_lock->wait(); | |
| 485 } | |
| 486 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); | |
| 487 return; | |
| 488 case BEFORE_EXIT_DONE: | |
| 489 return; | |
| 490 } | |
| 491 } | |
| 492 | |
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493 #ifdef GRAAL |
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494 GraalRuntime::shutdown(); |
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495 #endif |
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496 |
| 0 | 497 // The only difference between this and Win32's _onexit procs is that |
| 498 // this version is invoked before any threads get killed. | |
| 499 ExitProc* current = exit_procs; | |
| 500 while (current != NULL) { | |
| 501 ExitProc* next = current->next(); | |
| 502 current->evaluate(); | |
| 503 delete current; | |
| 504 current = next; | |
| 505 } | |
| 506 | |
| 507 // Hang forever on exit if we're reporting an error. | |
| 508 if (ShowMessageBoxOnError && is_error_reported()) { | |
| 509 os::infinite_sleep(); | |
| 510 } | |
| 511 | |
| 512 // Terminate watcher thread - must before disenrolling any periodic task | |
|
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513 if (PeriodicTask::num_tasks() > 0) |
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514 WatcherThread::stop(); |
| 0 | 515 |
| 516 // Print statistics gathered (profiling ...) | |
| 517 if (Arguments::has_profile()) { | |
| 518 FlatProfiler::disengage(); | |
| 519 FlatProfiler::print(10); | |
| 520 } | |
| 521 | |
| 522 // shut down the StatSampler task | |
| 523 StatSampler::disengage(); | |
| 524 StatSampler::destroy(); | |
| 525 | |
| 17992 | 526 // Stop concurrent GC threads |
| 527 Universe::heap()->stop(); | |
| 0 | 528 |
| 529 // Print GC/heap related information. | |
| 530 if (PrintGCDetails) { | |
| 531 Universe::print(); | |
| 532 AdaptiveSizePolicyOutput(0); | |
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533 if (Verbose) { |
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534 ClassLoaderDataGraph::dump_on(gclog_or_tty); |
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535 } |
| 0 | 536 } |
| 537 | |
| 538 if (PrintBytecodeHistogram) { | |
| 539 BytecodeHistogram::print(); | |
| 540 } | |
| 541 | |
| 542 if (JvmtiExport::should_post_thread_life()) { | |
| 543 JvmtiExport::post_thread_end(thread); | |
| 544 } | |
|
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545 |
| 10405 | 546 |
| 547 EventThreadEnd event; | |
| 548 if (event.should_commit()) { | |
| 549 event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj())); | |
| 550 event.commit(); | |
| 551 } | |
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552 |
| 0 | 553 // Always call even when there are not JVMTI environments yet, since environments |
| 554 // may be attached late and JVMTI must track phases of VM execution | |
| 555 JvmtiExport::post_vm_death(); | |
| 556 Threads::shutdown_vm_agents(); | |
| 557 | |
| 558 // Terminate the signal thread | |
| 559 // Note: we don't wait until it actually dies. | |
| 560 os::terminate_signal_thread(); | |
| 561 | |
| 562 print_statistics(); | |
| 563 Universe::heap()->print_tracing_info(); | |
| 564 | |
| 565 { MutexLocker ml(BeforeExit_lock); | |
| 566 _before_exit_status = BEFORE_EXIT_DONE; | |
| 567 BeforeExit_lock->notify_all(); | |
| 568 } | |
| 569 | |
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570 if (VerifyStringTableAtExit) { |
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571 int fail_cnt = 0; |
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572 { |
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573 MutexLocker ml(StringTable_lock); |
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574 fail_cnt = StringTable::verify_and_compare_entries(); |
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575 } |
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576 |
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577 if (fail_cnt != 0) { |
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578 tty->print_cr("ERROR: fail_cnt=%d", fail_cnt); |
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579 guarantee(fail_cnt == 0, "unexpected StringTable verification failures"); |
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580 } |
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581 } |
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582 |
| 0 | 583 #undef BEFORE_EXIT_NOT_RUN |
| 584 #undef BEFORE_EXIT_RUNNING | |
| 585 #undef BEFORE_EXIT_DONE | |
| 586 } | |
| 587 | |
| 588 void vm_exit(int code) { | |
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589 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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590 ThreadLocalStorage::get_thread_slow() : NULL; |
| 0 | 591 if (thread == NULL) { |
| 592 // we have serious problems -- just exit | |
| 593 vm_direct_exit(code); | |
| 594 } | |
| 595 | |
| 596 if (VMThread::vm_thread() != NULL) { | |
| 597 // Fire off a VM_Exit operation to bring VM to a safepoint and exit | |
| 598 VM_Exit op(code); | |
| 599 if (thread->is_Java_thread()) | |
| 600 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); | |
| 601 VMThread::execute(&op); | |
| 602 // should never reach here; but in case something wrong with VM Thread. | |
| 603 vm_direct_exit(code); | |
| 604 } else { | |
| 605 // VM thread is gone, just exit | |
| 606 vm_direct_exit(code); | |
| 607 } | |
| 608 ShouldNotReachHere(); | |
| 609 } | |
| 610 | |
| 611 void notify_vm_shutdown() { | |
| 612 // For now, just a dtrace probe. | |
| 4006 | 613 #ifndef USDT2 |
| 0 | 614 HS_DTRACE_PROBE(hotspot, vm__shutdown); |
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615 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); |
| 4006 | 616 #else /* USDT2 */ |
| 617 HOTSPOT_VM_SHUTDOWN(); | |
| 618 #endif /* USDT2 */ | |
| 0 | 619 } |
| 620 | |
| 621 void vm_direct_exit(int code) { | |
| 622 notify_vm_shutdown(); | |
|
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623 os::wait_for_keypress_at_exit(); |
| 0 | 624 ::exit(code); |
| 625 } | |
| 626 | |
| 627 void vm_perform_shutdown_actions() { | |
| 628 // Warning: do not call 'exit_globals()' here. All threads are still running. | |
| 629 // Calling 'exit_globals()' will disable thread-local-storage and cause all | |
| 630 // kinds of assertions to trigger in debug mode. | |
| 631 if (is_init_completed()) { | |
|
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632 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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633 ThreadLocalStorage::get_thread_slow() : NULL; |
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634 if (thread != NULL && thread->is_Java_thread()) { |
| 0 | 635 // We are leaving the VM, set state to native (in case any OS exit |
| 636 // handlers call back to the VM) | |
| 637 JavaThread* jt = (JavaThread*)thread; | |
| 638 // Must always be walkable or have no last_Java_frame when in | |
| 639 // thread_in_native | |
| 640 jt->frame_anchor()->make_walkable(jt); | |
| 641 jt->set_thread_state(_thread_in_native); | |
| 642 } | |
| 643 } | |
| 644 notify_vm_shutdown(); | |
| 645 } | |
| 646 | |
| 647 void vm_shutdown() | |
| 648 { | |
| 649 vm_perform_shutdown_actions(); | |
|
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650 os::wait_for_keypress_at_exit(); |
| 0 | 651 os::shutdown(); |
| 652 } | |
| 653 | |
|
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654 void vm_abort(bool dump_core) { |
| 0 | 655 vm_perform_shutdown_actions(); |
|
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656 os::wait_for_keypress_at_exit(); |
|
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657 os::abort(dump_core); |
| 0 | 658 ShouldNotReachHere(); |
| 659 } | |
| 660 | |
| 661 void vm_notify_during_shutdown(const char* error, const char* message) { | |
| 662 if (error != NULL) { | |
| 663 tty->print_cr("Error occurred during initialization of VM"); | |
| 664 tty->print("%s", error); | |
| 665 if (message != NULL) { | |
| 666 tty->print_cr(": %s", message); | |
| 667 } | |
| 668 else { | |
| 669 tty->cr(); | |
| 670 } | |
| 671 } | |
| 672 if (ShowMessageBoxOnError && WizardMode) { | |
| 673 fatal("Error occurred during initialization of VM"); | |
| 674 } | |
| 675 } | |
| 676 | |
| 677 void vm_exit_during_initialization(Handle exception) { | |
| 678 tty->print_cr("Error occurred during initialization of VM"); | |
| 679 // If there are exceptions on this thread it must be cleared | |
| 680 // first and here. Any future calls to EXCEPTION_MARK requires | |
| 681 // that no pending exceptions exist. | |
| 682 Thread *THREAD = Thread::current(); | |
| 683 if (HAS_PENDING_EXCEPTION) { | |
| 684 CLEAR_PENDING_EXCEPTION; | |
| 685 } | |
| 686 java_lang_Throwable::print(exception, tty); | |
| 687 tty->cr(); | |
| 688 java_lang_Throwable::print_stack_trace(exception(), tty); | |
| 689 tty->cr(); | |
| 690 vm_notify_during_shutdown(NULL, NULL); | |
|
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691 |
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692 // Failure during initialization, we don't want to dump core |
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693 vm_abort(false); |
| 0 | 694 } |
| 695 | |
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696 void vm_exit_during_initialization(Symbol* ex, const char* message) { |
| 0 | 697 ResourceMark rm; |
| 698 vm_notify_during_shutdown(ex->as_C_string(), message); | |
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699 |
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700 // Failure during initialization, we don't want to dump core |
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701 vm_abort(false); |
| 0 | 702 } |
| 703 | |
| 704 void vm_exit_during_initialization(const char* error, const char* message) { | |
| 705 vm_notify_during_shutdown(error, message); | |
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706 |
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707 // Failure during initialization, we don't want to dump core |
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708 vm_abort(false); |
| 0 | 709 } |
| 710 | |
| 711 void vm_shutdown_during_initialization(const char* error, const char* message) { | |
| 712 vm_notify_during_shutdown(error, message); | |
| 713 vm_shutdown(); | |
| 714 } | |
| 715 | |
| 242 | 716 JDK_Version JDK_Version::_current; |
| 6181 | 717 const char* JDK_Version::_runtime_name; |
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718 const char* JDK_Version::_runtime_version; |
| 0 | 719 |
| 720 void JDK_Version::initialize() { | |
| 242 | 721 jdk_version_info info; |
| 722 assert(!_current.is_valid(), "Don't initialize twice"); | |
| 723 | |
| 0 | 724 void *lib_handle = os::native_java_library(); |
| 242 | 725 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t, |
| 726 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); | |
| 0 | 727 |
| 728 if (func == NULL) { | |
| 729 // JDK older than 1.6 | |
| 242 | 730 _current._partially_initialized = true; |
| 731 } else { | |
| 732 (*func)(&info, sizeof(info)); | |
| 0 | 733 |
| 242 | 734 int major = JDK_VERSION_MAJOR(info.jdk_version); |
| 735 int minor = JDK_VERSION_MINOR(info.jdk_version); | |
| 736 int micro = JDK_VERSION_MICRO(info.jdk_version); | |
| 737 int build = JDK_VERSION_BUILD(info.jdk_version); | |
| 738 if (major == 1 && minor > 4) { | |
| 739 // We represent "1.5.0" as "5.0", but 1.4.2 as itself. | |
| 740 major = minor; | |
| 741 minor = micro; | |
| 742 micro = 0; | |
| 743 } | |
| 744 _current = JDK_Version(major, minor, micro, info.update_version, | |
| 745 info.special_update_version, build, | |
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746 info.thread_park_blocker == 1, |
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747 info.post_vm_init_hook_enabled == 1, |
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748 info.pending_list_uses_discovered_field == 1); |
| 0 | 749 } |
| 242 | 750 } |
| 751 | |
| 752 void JDK_Version::fully_initialize( | |
| 753 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) { | |
| 754 // This is only called when current is less than 1.6 and we've gotten | |
| 755 // far enough in the initialization to determine the exact version. | |
| 756 assert(major < 6, "not needed for JDK version >= 6"); | |
| 757 assert(is_partially_initialized(), "must not initialize"); | |
| 758 if (major < 5) { | |
| 759 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc. | |
| 760 micro = minor; | |
| 761 minor = major; | |
| 762 major = 1; | |
| 0 | 763 } |
| 242 | 764 _current = JDK_Version(major, minor, micro, update); |
| 0 | 765 } |
| 766 | |
| 767 void JDK_Version_init() { | |
| 768 JDK_Version::initialize(); | |
| 769 } | |
| 242 | 770 |
| 771 static int64_t encode_jdk_version(const JDK_Version& v) { | |
| 772 return | |
| 773 ((int64_t)v.major_version() << (BitsPerByte * 5)) | | |
| 774 ((int64_t)v.minor_version() << (BitsPerByte * 4)) | | |
| 775 ((int64_t)v.micro_version() << (BitsPerByte * 3)) | | |
| 776 ((int64_t)v.update_version() << (BitsPerByte * 2)) | | |
| 777 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) | | |
| 778 ((int64_t)v.build_number() << (BitsPerByte * 0)); | |
| 779 } | |
| 780 | |
| 781 int JDK_Version::compare(const JDK_Version& other) const { | |
| 782 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)"); | |
| 783 if (!is_partially_initialized() && other.is_partially_initialized()) { | |
| 784 return -(other.compare(*this)); // flip the comparators | |
| 785 } | |
| 786 assert(!other.is_partially_initialized(), "Not initialized yet"); | |
| 787 if (is_partially_initialized()) { | |
| 788 assert(other.major_version() >= 6, | |
| 789 "Invalid JDK version comparison during initialization"); | |
| 790 return -1; | |
| 791 } else { | |
| 792 uint64_t e = encode_jdk_version(*this); | |
| 793 uint64_t o = encode_jdk_version(other); | |
| 794 return (e > o) ? 1 : ((e == o) ? 0 : -1); | |
| 795 } | |
| 796 } | |
| 797 | |
| 798 void JDK_Version::to_string(char* buffer, size_t buflen) const { | |
| 799 size_t index = 0; | |
| 800 if (!is_valid()) { | |
| 801 jio_snprintf(buffer, buflen, "%s", "(uninitialized)"); | |
| 802 } else if (is_partially_initialized()) { | |
| 803 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0"); | |
| 804 } else { | |
| 805 index += jio_snprintf( | |
| 806 &buffer[index], buflen - index, "%d.%d", _major, _minor); | |
| 807 if (_micro > 0) { | |
| 808 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro); | |
| 809 } | |
| 810 if (_update > 0) { | |
| 811 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update); | |
| 812 } | |
| 813 if (_special > 0) { | |
| 814 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special); | |
| 815 } | |
| 816 if (_build > 0) { | |
| 817 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build); | |
| 818 } | |
| 819 } | |
| 820 } |