Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/java.cpp @ 20596:4356234e712a
8041992: Fix of JDK-8034775 neglects to account for non-JIT VMs
Summary: Allow 0 compiler threads if no JIT is used.
Reviewed-by: kvn, dholmes
Contributed-by: Severin Gehwolf <sgehwolf@redhat.com>
author | anoll |
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date | Fri, 02 May 2014 06:24:39 +0200 |
parents | 833b0f92429a |
children | 7848fc12602b |
rev | line source |
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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" | |
33 #include "memory/genCollectedHeap.hpp" | |
34 #include "memory/oopFactory.hpp" | |
35 #include "memory/universe.hpp" | |
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36 #include "oops/constantPool.hpp" |
1972 | 37 #include "oops/generateOopMap.hpp" |
38 #include "oops/instanceKlass.hpp" | |
39 #include "oops/instanceOop.hpp" | |
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40 #include "oops/method.hpp" |
1972 | 41 #include "oops/objArrayOop.hpp" |
42 #include "oops/oop.inline.hpp" | |
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43 #include "oops/symbol.hpp" |
1972 | 44 #include "prims/jvmtiExport.hpp" |
45 #include "runtime/arguments.hpp" | |
46 #include "runtime/biasedLocking.hpp" | |
47 #include "runtime/compilationPolicy.hpp" | |
48 #include "runtime/fprofiler.hpp" | |
49 #include "runtime/init.hpp" | |
50 #include "runtime/interfaceSupport.hpp" | |
51 #include "runtime/java.hpp" | |
52 #include "runtime/memprofiler.hpp" | |
53 #include "runtime/sharedRuntime.hpp" | |
54 #include "runtime/statSampler.hpp" | |
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55 #include "runtime/sweeper.hpp" |
1972 | 56 #include "runtime/task.hpp" |
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57 #include "runtime/thread.inline.hpp" |
1972 | 58 #include "runtime/timer.hpp" |
59 #include "runtime/vm_operations.hpp" | |
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60 #include "services/memTracker.hpp" |
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61 #include "trace/tracing.hpp" |
1972 | 62 #include "utilities/dtrace.hpp" |
63 #include "utilities/globalDefinitions.hpp" | |
64 #include "utilities/histogram.hpp" | |
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65 #include "utilities/macros.hpp" |
1972 | 66 #include "utilities/vmError.hpp" |
67 #ifdef TARGET_ARCH_x86 | |
68 # include "vm_version_x86.hpp" | |
69 #endif | |
70 #ifdef TARGET_ARCH_sparc | |
71 # include "vm_version_sparc.hpp" | |
72 #endif | |
73 #ifdef TARGET_ARCH_zero | |
74 # include "vm_version_zero.hpp" | |
75 #endif | |
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76 #ifdef TARGET_ARCH_arm |
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77 # include "vm_version_arm.hpp" |
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78 #endif |
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79 #ifdef TARGET_ARCH_ppc |
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80 # include "vm_version_ppc.hpp" |
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81 #endif |
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82 #if INCLUDE_ALL_GCS |
1972 | 83 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp" |
84 #include "gc_implementation/parallelScavenge/psScavenge.hpp" | |
85 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
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86 #endif // INCLUDE_ALL_GCS |
1972 | 87 #ifdef COMPILER1 |
88 #include "c1/c1_Compiler.hpp" | |
89 #include "c1/c1_Runtime1.hpp" | |
90 #endif | |
91 #ifdef COMPILER2 | |
92 #include "code/compiledIC.hpp" | |
93 #include "compiler/methodLiveness.hpp" | |
94 #include "opto/compile.hpp" | |
95 #include "opto/indexSet.hpp" | |
96 #include "opto/runtime.hpp" | |
97 #endif | |
0 | 98 |
4006 | 99 #ifndef USDT2 |
0 | 100 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown); |
4006 | 101 #endif /* !USDT2 */ |
0 | 102 |
103 #ifndef PRODUCT | |
104 | |
105 // Statistics printing (method invocation histogram) | |
106 | |
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107 GrowableArray<Method*>* collected_invoked_methods; |
0 | 108 |
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109 void collect_invoked_methods(Method* m) { |
0 | 110 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) { |
111 collected_invoked_methods->push(m); | |
112 } | |
113 } | |
114 | |
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115 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
0 | 116 |
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117 GrowableArray<Method*>* collected_profiled_methods; |
0 | 118 |
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119 void collect_profiled_methods(Method* m) { |
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120 Thread* thread = Thread::current(); |
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121 // This HandleMark prevents a huge amount of handles from being added |
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122 // to the metadata_handles() array on the thread. |
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123 HandleMark hm(thread); |
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124 methodHandle mh(thread, m); |
0 | 125 if ((m->method_data() != NULL) && |
126 (PrintMethodData || CompilerOracle::should_print(mh))) { | |
127 collected_profiled_methods->push(m); | |
128 } | |
129 } | |
130 | |
131 | |
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132 int compare_methods(Method** a, Method** b) { |
0 | 133 // %%% there can be 32-bit overflow here |
134 return ((*b)->invocation_count() + (*b)->compiled_invocation_count()) | |
135 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()); | |
136 } | |
137 | |
138 | |
139 void print_method_invocation_histogram() { | |
140 ResourceMark rm; | |
141 HandleMark hm; | |
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142 collected_invoked_methods = new GrowableArray<Method*>(1024); |
0 | 143 SystemDictionary::methods_do(collect_invoked_methods); |
144 collected_invoked_methods->sort(&compare_methods); | |
145 // | |
146 tty->cr(); | |
147 tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff); | |
148 tty->cr(); | |
149 tty->print_cr("____Count_(I+C)____Method________________________Module_________________"); | |
150 unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0, | |
151 synch_total = 0, nativ_total = 0, acces_total = 0; | |
152 for (int index = 0; index < collected_invoked_methods->length(); index++) { | |
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153 Method* m = collected_invoked_methods->at(index); |
0 | 154 int c = m->invocation_count() + m->compiled_invocation_count(); |
155 if (c >= MethodHistogramCutoff) m->print_invocation_count(); | |
156 int_total += m->invocation_count(); | |
157 comp_total += m->compiled_invocation_count(); | |
158 if (m->is_final()) final_total += c; | |
159 if (m->is_static()) static_total += c; | |
160 if (m->is_synchronized()) synch_total += c; | |
161 if (m->is_native()) nativ_total += c; | |
162 if (m->is_accessor()) acces_total += c; | |
163 } | |
164 tty->cr(); | |
165 total = int_total + comp_total; | |
166 tty->print_cr("Invocations summary:"); | |
167 tty->print_cr("\t%9d (%4.1f%%) interpreted", int_total, 100.0 * int_total / total); | |
168 tty->print_cr("\t%9d (%4.1f%%) compiled", comp_total, 100.0 * comp_total / total); | |
169 tty->print_cr("\t%9d (100%%) total", total); | |
170 tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total, 100.0 * synch_total / total); | |
171 tty->print_cr("\t%9d (%4.1f%%) final", final_total, 100.0 * final_total / total); | |
172 tty->print_cr("\t%9d (%4.1f%%) static", static_total, 100.0 * static_total / total); | |
173 tty->print_cr("\t%9d (%4.1f%%) native", nativ_total, 100.0 * nativ_total / total); | |
174 tty->print_cr("\t%9d (%4.1f%%) accessor", acces_total, 100.0 * acces_total / total); | |
175 tty->cr(); | |
176 SharedRuntime::print_call_statistics(comp_total); | |
177 } | |
178 | |
179 void print_method_profiling_data() { | |
180 ResourceMark rm; | |
181 HandleMark hm; | |
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182 collected_profiled_methods = new GrowableArray<Method*>(1024); |
0 | 183 SystemDictionary::methods_do(collect_profiled_methods); |
184 collected_profiled_methods->sort(&compare_methods); | |
185 | |
186 int count = collected_profiled_methods->length(); | |
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187 int total_size = 0; |
0 | 188 if (count > 0) { |
189 for (int index = 0; index < count; index++) { | |
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190 Method* m = collected_profiled_methods->at(index); |
0 | 191 ttyLocker ttyl; |
192 tty->print_cr("------------------------------------------------------------------------"); | |
193 //m->print_name(tty); | |
194 m->print_invocation_count(); | |
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195 tty->print_cr(" mdo size: %d bytes", m->method_data()->size_in_bytes()); |
0 | 196 tty->cr(); |
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197 // Dump data on parameters if any |
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198 if (m->method_data() != NULL && m->method_data()->parameters_type_data() != NULL) { |
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199 tty->fill_to(2); |
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200 m->method_data()->parameters_type_data()->print_data_on(tty); |
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201 } |
0 | 202 m->print_codes(); |
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203 total_size += m->method_data()->size_in_bytes(); |
0 | 204 } |
205 tty->print_cr("------------------------------------------------------------------------"); | |
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206 tty->print_cr("Total MDO size: %d bytes", total_size); |
0 | 207 } |
208 } | |
209 | |
210 void print_bytecode_count() { | |
211 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
212 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value()); | |
213 } | |
214 } | |
215 | |
216 AllocStats alloc_stats; | |
217 | |
218 | |
219 | |
220 // General statistics printing (profiling ...) | |
221 void print_statistics() { | |
222 #ifdef ASSERT | |
223 | |
224 if (CountRuntimeCalls) { | |
225 extern Histogram *RuntimeHistogram; | |
226 RuntimeHistogram->print(); | |
227 } | |
228 | |
229 if (CountJNICalls) { | |
230 extern Histogram *JNIHistogram; | |
231 JNIHistogram->print(); | |
232 } | |
233 | |
234 if (CountJVMCalls) { | |
235 extern Histogram *JVMHistogram; | |
236 JVMHistogram->print(); | |
237 } | |
238 | |
239 #endif | |
240 | |
241 if (MemProfiling) { | |
242 MemProfiler::disengage(); | |
243 } | |
244 | |
245 if (CITime) { | |
246 CompileBroker::print_times(); | |
247 } | |
248 | |
249 #ifdef COMPILER1 | |
250 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
251 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics); | |
252 Runtime1::print_statistics(); | |
253 Deoptimization::print_statistics(); | |
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254 SharedRuntime::print_statistics(); |
0 | 255 nmethod::print_statistics(); |
256 } | |
257 #endif /* COMPILER1 */ | |
258 | |
259 #ifdef COMPILER2 | |
260 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
261 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); | |
262 Compile::print_statistics(); | |
263 #ifndef COMPILER1 | |
264 Deoptimization::print_statistics(); | |
265 nmethod::print_statistics(); | |
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266 SharedRuntime::print_statistics(); |
0 | 267 #endif //COMPILER1 |
268 os::print_statistics(); | |
269 } | |
270 | |
17780 | 271 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics || PrintPreciseRTMLockingStatistics) { |
0 | 272 OptoRuntime::print_named_counters(); |
273 } | |
274 | |
275 if (TimeLivenessAnalysis) { | |
276 MethodLiveness::print_times(); | |
277 } | |
278 #ifdef ASSERT | |
279 if (CollectIndexSetStatistics) { | |
280 IndexSet::print_statistics(); | |
281 } | |
282 #endif // ASSERT | |
283 #endif // COMPILER2 | |
284 if (CountCompiledCalls) { | |
285 print_method_invocation_histogram(); | |
286 } | |
1918 | 287 if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) { |
0 | 288 print_method_profiling_data(); |
289 } | |
290 if (TimeCompiler) { | |
291 COMPILER2_PRESENT(Compile::print_timers();) | |
292 } | |
293 if (TimeCompilationPolicy) { | |
294 CompilationPolicy::policy()->print_time(); | |
295 } | |
296 if (TimeOopMap) { | |
297 GenerateOopMap::print_time(); | |
298 } | |
299 if (ProfilerCheckIntervals) { | |
300 PeriodicTask::print_intervals(); | |
301 } | |
302 if (PrintSymbolTableSizeHistogram) { | |
303 SymbolTable::print_histogram(); | |
304 } | |
305 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
306 BytecodeCounter::print(); | |
307 } | |
308 if (PrintBytecodePairHistogram) { | |
309 BytecodePairHistogram::print(); | |
310 } | |
311 | |
312 if (PrintCodeCache) { | |
313 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
314 CodeCache::print(); | |
315 } | |
316 | |
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317 if (PrintMethodFlushingStatistics) { |
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318 NMethodSweeper::print(); |
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319 } |
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320 |
0 | 321 if (PrintCodeCache2) { |
322 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
323 CodeCache::print_internals(); | |
324 } | |
325 | |
326 if (PrintClassStatistics) { | |
327 SystemDictionary::print_class_statistics(); | |
328 } | |
329 if (PrintMethodStatistics) { | |
330 SystemDictionary::print_method_statistics(); | |
331 } | |
332 | |
333 if (PrintVtableStats) { | |
334 klassVtable::print_statistics(); | |
335 klassItable::print_statistics(); | |
336 } | |
337 if (VerifyOops) { | |
338 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count()); | |
339 } | |
340 | |
341 print_bytecode_count(); | |
2250 | 342 if (PrintMallocStatistics) { |
0 | 343 tty->print("allocation stats: "); |
344 alloc_stats.print(); | |
345 tty->cr(); | |
346 } | |
347 | |
348 if (PrintSystemDictionaryAtExit) { | |
349 SystemDictionary::print(); | |
350 } | |
351 | |
352 if (PrintBiasedLockingStatistics) { | |
353 BiasedLocking::print_counters(); | |
354 } | |
355 | |
356 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
357 #ifdef COMPILER2 | |
358 if (ZapDeadCompiledLocals) { | |
359 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count); | |
360 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count); | |
361 } | |
362 #endif // COMPILER2 | |
363 #endif // ENABLE_ZAP_DEAD_LOCALS | |
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364 // Native memory tracking data |
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365 if (PrintNMTStatistics) { |
20360 | 366 MemTracker::final_report(tty); |
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367 } |
0 | 368 } |
369 | |
370 #else // PRODUCT MODE STATISTICS | |
371 | |
372 void print_statistics() { | |
373 | |
374 if (CITime) { | |
375 CompileBroker::print_times(); | |
376 } | |
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377 |
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378 if (PrintCodeCache) { |
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379 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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380 CodeCache::print(); |
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381 } |
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382 |
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383 if (PrintMethodFlushingStatistics) { |
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384 NMethodSweeper::print(); |
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385 } |
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386 |
0 | 387 #ifdef COMPILER2 |
17780 | 388 if (PrintPreciseBiasedLockingStatistics || PrintPreciseRTMLockingStatistics) { |
0 | 389 OptoRuntime::print_named_counters(); |
390 } | |
391 #endif | |
392 if (PrintBiasedLockingStatistics) { | |
393 BiasedLocking::print_counters(); | |
394 } | |
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395 |
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396 // Native memory tracking data |
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397 if (PrintNMTStatistics) { |
20360 | 398 MemTracker::final_report(tty); |
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399 } |
0 | 400 } |
401 | |
402 #endif | |
403 | |
404 | |
405 // Helper class for registering on_exit calls through JVM_OnExit | |
406 | |
407 extern "C" { | |
408 typedef void (*__exit_proc)(void); | |
409 } | |
410 | |
6197 | 411 class ExitProc : public CHeapObj<mtInternal> { |
0 | 412 private: |
413 __exit_proc _proc; | |
414 // void (*_proc)(void); | |
415 ExitProc* _next; | |
416 public: | |
417 // ExitProc(void (*proc)(void)) { | |
418 ExitProc(__exit_proc proc) { | |
419 _proc = proc; | |
420 _next = NULL; | |
421 } | |
422 void evaluate() { _proc(); } | |
423 ExitProc* next() const { return _next; } | |
424 void set_next(ExitProc* next) { _next = next; } | |
425 }; | |
426 | |
427 | |
428 // Linked list of registered on_exit procedures | |
429 | |
430 static ExitProc* exit_procs = NULL; | |
431 | |
432 | |
433 extern "C" { | |
434 void register_on_exit_function(void (*func)(void)) { | |
435 ExitProc *entry = new ExitProc(func); | |
436 // Classic vm does not throw an exception in case the allocation failed, | |
437 if (entry != NULL) { | |
438 entry->set_next(exit_procs); | |
439 exit_procs = entry; | |
440 } | |
441 } | |
442 } | |
443 | |
444 // Note: before_exit() can be executed only once, if more than one threads | |
445 // are trying to shutdown the VM at the same time, only one thread | |
446 // can run before_exit() and all other threads must wait. | |
447 void before_exit(JavaThread * thread) { | |
448 #define BEFORE_EXIT_NOT_RUN 0 | |
449 #define BEFORE_EXIT_RUNNING 1 | |
450 #define BEFORE_EXIT_DONE 2 | |
451 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; | |
452 | |
453 // Note: don't use a Mutex to guard the entire before_exit(), as | |
454 // JVMTI post_thread_end_event and post_vm_death_event will run native code. | |
455 // A CAS or OSMutex would work just fine but then we need to manipulate | |
456 // thread state for Safepoint. Here we use Monitor wait() and notify_all() | |
457 // for synchronization. | |
458 { MutexLocker ml(BeforeExit_lock); | |
459 switch (_before_exit_status) { | |
460 case BEFORE_EXIT_NOT_RUN: | |
461 _before_exit_status = BEFORE_EXIT_RUNNING; | |
462 break; | |
463 case BEFORE_EXIT_RUNNING: | |
464 while (_before_exit_status == BEFORE_EXIT_RUNNING) { | |
465 BeforeExit_lock->wait(); | |
466 } | |
467 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); | |
468 return; | |
469 case BEFORE_EXIT_DONE: | |
470 return; | |
471 } | |
472 } | |
473 | |
474 // The only difference between this and Win32's _onexit procs is that | |
475 // this version is invoked before any threads get killed. | |
476 ExitProc* current = exit_procs; | |
477 while (current != NULL) { | |
478 ExitProc* next = current->next(); | |
479 current->evaluate(); | |
480 delete current; | |
481 current = next; | |
482 } | |
483 | |
484 // Hang forever on exit if we're reporting an error. | |
485 if (ShowMessageBoxOnError && is_error_reported()) { | |
486 os::infinite_sleep(); | |
487 } | |
488 | |
489 // Terminate watcher thread - must before disenrolling any periodic task | |
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490 if (PeriodicTask::num_tasks() > 0) |
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491 WatcherThread::stop(); |
0 | 492 |
493 // Print statistics gathered (profiling ...) | |
494 if (Arguments::has_profile()) { | |
495 FlatProfiler::disengage(); | |
496 FlatProfiler::print(10); | |
497 } | |
498 | |
499 // shut down the StatSampler task | |
500 StatSampler::disengage(); | |
501 StatSampler::destroy(); | |
502 | |
17992 | 503 // Stop concurrent GC threads |
504 Universe::heap()->stop(); | |
0 | 505 |
506 // Print GC/heap related information. | |
507 if (PrintGCDetails) { | |
508 Universe::print(); | |
509 AdaptiveSizePolicyOutput(0); | |
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510 if (Verbose) { |
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511 ClassLoaderDataGraph::dump_on(gclog_or_tty); |
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512 } |
0 | 513 } |
514 | |
515 if (PrintBytecodeHistogram) { | |
516 BytecodeHistogram::print(); | |
517 } | |
518 | |
519 if (JvmtiExport::should_post_thread_life()) { | |
520 JvmtiExport::post_thread_end(thread); | |
521 } | |
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522 |
10405 | 523 |
524 EventThreadEnd event; | |
525 if (event.should_commit()) { | |
526 event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj())); | |
527 event.commit(); | |
528 } | |
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529 |
0 | 530 // Always call even when there are not JVMTI environments yet, since environments |
531 // may be attached late and JVMTI must track phases of VM execution | |
532 JvmtiExport::post_vm_death(); | |
533 Threads::shutdown_vm_agents(); | |
534 | |
535 // Terminate the signal thread | |
536 // Note: we don't wait until it actually dies. | |
537 os::terminate_signal_thread(); | |
538 | |
539 print_statistics(); | |
540 Universe::heap()->print_tracing_info(); | |
541 | |
542 { MutexLocker ml(BeforeExit_lock); | |
543 _before_exit_status = BEFORE_EXIT_DONE; | |
544 BeforeExit_lock->notify_all(); | |
545 } | |
546 | |
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547 if (VerifyStringTableAtExit) { |
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548 int fail_cnt = 0; |
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549 { |
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550 MutexLocker ml(StringTable_lock); |
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551 fail_cnt = StringTable::verify_and_compare_entries(); |
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552 } |
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553 |
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554 if (fail_cnt != 0) { |
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555 tty->print_cr("ERROR: fail_cnt=%d", fail_cnt); |
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556 guarantee(fail_cnt == 0, "unexpected StringTable verification failures"); |
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557 } |
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558 } |
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559 |
0 | 560 #undef BEFORE_EXIT_NOT_RUN |
561 #undef BEFORE_EXIT_RUNNING | |
562 #undef BEFORE_EXIT_DONE | |
563 } | |
564 | |
565 void vm_exit(int code) { | |
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566 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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567 ThreadLocalStorage::get_thread_slow() : NULL; |
0 | 568 if (thread == NULL) { |
569 // we have serious problems -- just exit | |
570 vm_direct_exit(code); | |
571 } | |
572 | |
573 if (VMThread::vm_thread() != NULL) { | |
574 // Fire off a VM_Exit operation to bring VM to a safepoint and exit | |
575 VM_Exit op(code); | |
576 if (thread->is_Java_thread()) | |
577 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); | |
578 VMThread::execute(&op); | |
579 // should never reach here; but in case something wrong with VM Thread. | |
580 vm_direct_exit(code); | |
581 } else { | |
582 // VM thread is gone, just exit | |
583 vm_direct_exit(code); | |
584 } | |
585 ShouldNotReachHere(); | |
586 } | |
587 | |
588 void notify_vm_shutdown() { | |
589 // For now, just a dtrace probe. | |
4006 | 590 #ifndef USDT2 |
0 | 591 HS_DTRACE_PROBE(hotspot, vm__shutdown); |
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592 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); |
4006 | 593 #else /* USDT2 */ |
594 HOTSPOT_VM_SHUTDOWN(); | |
595 #endif /* USDT2 */ | |
0 | 596 } |
597 | |
598 void vm_direct_exit(int code) { | |
599 notify_vm_shutdown(); | |
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600 os::wait_for_keypress_at_exit(); |
0 | 601 ::exit(code); |
602 } | |
603 | |
604 void vm_perform_shutdown_actions() { | |
605 // Warning: do not call 'exit_globals()' here. All threads are still running. | |
606 // Calling 'exit_globals()' will disable thread-local-storage and cause all | |
607 // kinds of assertions to trigger in debug mode. | |
608 if (is_init_completed()) { | |
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609 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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610 ThreadLocalStorage::get_thread_slow() : NULL; |
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611 if (thread != NULL && thread->is_Java_thread()) { |
0 | 612 // We are leaving the VM, set state to native (in case any OS exit |
613 // handlers call back to the VM) | |
614 JavaThread* jt = (JavaThread*)thread; | |
615 // Must always be walkable or have no last_Java_frame when in | |
616 // thread_in_native | |
617 jt->frame_anchor()->make_walkable(jt); | |
618 jt->set_thread_state(_thread_in_native); | |
619 } | |
620 } | |
621 notify_vm_shutdown(); | |
622 } | |
623 | |
624 void vm_shutdown() | |
625 { | |
626 vm_perform_shutdown_actions(); | |
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627 os::wait_for_keypress_at_exit(); |
0 | 628 os::shutdown(); |
629 } | |
630 | |
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631 void vm_abort(bool dump_core) { |
0 | 632 vm_perform_shutdown_actions(); |
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633 os::wait_for_keypress_at_exit(); |
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634 os::abort(dump_core); |
0 | 635 ShouldNotReachHere(); |
636 } | |
637 | |
638 void vm_notify_during_shutdown(const char* error, const char* message) { | |
639 if (error != NULL) { | |
640 tty->print_cr("Error occurred during initialization of VM"); | |
641 tty->print("%s", error); | |
642 if (message != NULL) { | |
643 tty->print_cr(": %s", message); | |
644 } | |
645 else { | |
646 tty->cr(); | |
647 } | |
648 } | |
649 if (ShowMessageBoxOnError && WizardMode) { | |
650 fatal("Error occurred during initialization of VM"); | |
651 } | |
652 } | |
653 | |
654 void vm_exit_during_initialization(Handle exception) { | |
655 tty->print_cr("Error occurred during initialization of VM"); | |
656 // If there are exceptions on this thread it must be cleared | |
657 // first and here. Any future calls to EXCEPTION_MARK requires | |
658 // that no pending exceptions exist. | |
659 Thread *THREAD = Thread::current(); | |
660 if (HAS_PENDING_EXCEPTION) { | |
661 CLEAR_PENDING_EXCEPTION; | |
662 } | |
663 java_lang_Throwable::print(exception, tty); | |
664 tty->cr(); | |
665 java_lang_Throwable::print_stack_trace(exception(), tty); | |
666 tty->cr(); | |
667 vm_notify_during_shutdown(NULL, NULL); | |
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668 |
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669 // Failure during initialization, we don't want to dump core |
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670 vm_abort(false); |
0 | 671 } |
672 | |
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673 void vm_exit_during_initialization(Symbol* ex, const char* message) { |
0 | 674 ResourceMark rm; |
675 vm_notify_during_shutdown(ex->as_C_string(), message); | |
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676 |
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677 // Failure during initialization, we don't want to dump core |
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678 vm_abort(false); |
0 | 679 } |
680 | |
681 void vm_exit_during_initialization(const char* error, const char* message) { | |
682 vm_notify_during_shutdown(error, message); | |
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683 |
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684 // Failure during initialization, we don't want to dump core |
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685 vm_abort(false); |
0 | 686 } |
687 | |
688 void vm_shutdown_during_initialization(const char* error, const char* message) { | |
689 vm_notify_during_shutdown(error, message); | |
690 vm_shutdown(); | |
691 } | |
692 | |
242 | 693 JDK_Version JDK_Version::_current; |
6181 | 694 const char* JDK_Version::_runtime_name; |
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695 const char* JDK_Version::_runtime_version; |
0 | 696 |
697 void JDK_Version::initialize() { | |
242 | 698 jdk_version_info info; |
699 assert(!_current.is_valid(), "Don't initialize twice"); | |
700 | |
0 | 701 void *lib_handle = os::native_java_library(); |
242 | 702 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t, |
703 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); | |
0 | 704 |
705 if (func == NULL) { | |
706 // JDK older than 1.6 | |
242 | 707 _current._partially_initialized = true; |
708 } else { | |
709 (*func)(&info, sizeof(info)); | |
0 | 710 |
242 | 711 int major = JDK_VERSION_MAJOR(info.jdk_version); |
712 int minor = JDK_VERSION_MINOR(info.jdk_version); | |
713 int micro = JDK_VERSION_MICRO(info.jdk_version); | |
714 int build = JDK_VERSION_BUILD(info.jdk_version); | |
715 if (major == 1 && minor > 4) { | |
716 // We represent "1.5.0" as "5.0", but 1.4.2 as itself. | |
717 major = minor; | |
718 minor = micro; | |
719 micro = 0; | |
720 } | |
721 _current = JDK_Version(major, minor, micro, info.update_version, | |
722 info.special_update_version, build, | |
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723 info.thread_park_blocker == 1, |
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724 info.post_vm_init_hook_enabled == 1, |
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725 info.pending_list_uses_discovered_field == 1); |
0 | 726 } |
242 | 727 } |
728 | |
729 void JDK_Version::fully_initialize( | |
730 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) { | |
731 // This is only called when current is less than 1.6 and we've gotten | |
732 // far enough in the initialization to determine the exact version. | |
733 assert(major < 6, "not needed for JDK version >= 6"); | |
734 assert(is_partially_initialized(), "must not initialize"); | |
735 if (major < 5) { | |
736 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc. | |
737 micro = minor; | |
738 minor = major; | |
739 major = 1; | |
0 | 740 } |
242 | 741 _current = JDK_Version(major, minor, micro, update); |
0 | 742 } |
743 | |
744 void JDK_Version_init() { | |
745 JDK_Version::initialize(); | |
746 } | |
242 | 747 |
748 static int64_t encode_jdk_version(const JDK_Version& v) { | |
749 return | |
750 ((int64_t)v.major_version() << (BitsPerByte * 5)) | | |
751 ((int64_t)v.minor_version() << (BitsPerByte * 4)) | | |
752 ((int64_t)v.micro_version() << (BitsPerByte * 3)) | | |
753 ((int64_t)v.update_version() << (BitsPerByte * 2)) | | |
754 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) | | |
755 ((int64_t)v.build_number() << (BitsPerByte * 0)); | |
756 } | |
757 | |
758 int JDK_Version::compare(const JDK_Version& other) const { | |
759 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)"); | |
760 if (!is_partially_initialized() && other.is_partially_initialized()) { | |
761 return -(other.compare(*this)); // flip the comparators | |
762 } | |
763 assert(!other.is_partially_initialized(), "Not initialized yet"); | |
764 if (is_partially_initialized()) { | |
765 assert(other.major_version() >= 6, | |
766 "Invalid JDK version comparison during initialization"); | |
767 return -1; | |
768 } else { | |
769 uint64_t e = encode_jdk_version(*this); | |
770 uint64_t o = encode_jdk_version(other); | |
771 return (e > o) ? 1 : ((e == o) ? 0 : -1); | |
772 } | |
773 } | |
774 | |
775 void JDK_Version::to_string(char* buffer, size_t buflen) const { | |
776 size_t index = 0; | |
777 if (!is_valid()) { | |
778 jio_snprintf(buffer, buflen, "%s", "(uninitialized)"); | |
779 } else if (is_partially_initialized()) { | |
780 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0"); | |
781 } else { | |
782 index += jio_snprintf( | |
783 &buffer[index], buflen - index, "%d.%d", _major, _minor); | |
784 if (_micro > 0) { | |
785 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro); | |
786 } | |
787 if (_update > 0) { | |
788 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update); | |
789 } | |
790 if (_special > 0) { | |
791 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special); | |
792 } | |
793 if (_build > 0) { | |
794 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build); | |
795 } | |
796 } | |
797 } |