Mercurial > hg > truffle
annotate src/share/vm/runtime/java.cpp @ 18002:dad84b3f55a5
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Reviewed-by: jcoomes
author | amurillo |
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date | Thu, 03 Jul 2014 12:59:11 -0700 |
parents | a45a4f5a9609 |
children | 52b4284cb496 833b0f92429a |
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/memReporter.hpp" |
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61 #include "services/memTracker.hpp" |
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62 #include "trace/tracing.hpp" |
1972 | 63 #include "utilities/dtrace.hpp" |
64 #include "utilities/globalDefinitions.hpp" | |
65 #include "utilities/histogram.hpp" | |
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66 #include "utilities/macros.hpp" |
1972 | 67 #include "utilities/vmError.hpp" |
68 #ifdef TARGET_ARCH_x86 | |
69 # include "vm_version_x86.hpp" | |
70 #endif | |
71 #ifdef TARGET_ARCH_sparc | |
72 # include "vm_version_sparc.hpp" | |
73 #endif | |
74 #ifdef TARGET_ARCH_zero | |
75 # include "vm_version_zero.hpp" | |
76 #endif | |
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77 #ifdef TARGET_ARCH_arm |
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78 # include "vm_version_arm.hpp" |
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79 #endif |
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80 #ifdef TARGET_ARCH_ppc |
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81 # include "vm_version_ppc.hpp" |
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82 #endif |
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83 #if INCLUDE_ALL_GCS |
1972 | 84 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp" |
85 #include "gc_implementation/parallelScavenge/psScavenge.hpp" | |
86 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
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87 #endif // INCLUDE_ALL_GCS |
1972 | 88 #ifdef COMPILER1 |
89 #include "c1/c1_Compiler.hpp" | |
90 #include "c1/c1_Runtime1.hpp" | |
91 #endif | |
92 #ifdef COMPILER2 | |
93 #include "code/compiledIC.hpp" | |
94 #include "compiler/methodLiveness.hpp" | |
95 #include "opto/compile.hpp" | |
96 #include "opto/indexSet.hpp" | |
97 #include "opto/runtime.hpp" | |
98 #endif | |
0 | 99 |
4006 | 100 #ifndef USDT2 |
0 | 101 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown); |
4006 | 102 #endif /* !USDT2 */ |
0 | 103 |
104 #ifndef PRODUCT | |
105 | |
106 // Statistics printing (method invocation histogram) | |
107 | |
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108 GrowableArray<Method*>* collected_invoked_methods; |
0 | 109 |
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110 void collect_invoked_methods(Method* m) { |
0 | 111 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) { |
112 collected_invoked_methods->push(m); | |
113 } | |
114 } | |
115 | |
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116 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
0 | 117 |
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118 GrowableArray<Method*>* collected_profiled_methods; |
0 | 119 |
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120 void collect_profiled_methods(Method* m) { |
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121 Thread* thread = Thread::current(); |
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122 // This HandleMark prevents a huge amount of handles from being added |
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123 // to the metadata_handles() array on the thread. |
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124 HandleMark hm(thread); |
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125 methodHandle mh(thread, m); |
0 | 126 if ((m->method_data() != NULL) && |
127 (PrintMethodData || CompilerOracle::should_print(mh))) { | |
128 collected_profiled_methods->push(m); | |
129 } | |
130 } | |
131 | |
132 | |
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133 int compare_methods(Method** a, Method** b) { |
0 | 134 // %%% there can be 32-bit overflow here |
135 return ((*b)->invocation_count() + (*b)->compiled_invocation_count()) | |
136 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()); | |
137 } | |
138 | |
139 | |
140 void print_method_invocation_histogram() { | |
141 ResourceMark rm; | |
142 HandleMark hm; | |
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143 collected_invoked_methods = new GrowableArray<Method*>(1024); |
0 | 144 SystemDictionary::methods_do(collect_invoked_methods); |
145 collected_invoked_methods->sort(&compare_methods); | |
146 // | |
147 tty->cr(); | |
148 tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff); | |
149 tty->cr(); | |
150 tty->print_cr("____Count_(I+C)____Method________________________Module_________________"); | |
151 unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0, | |
152 synch_total = 0, nativ_total = 0, acces_total = 0; | |
153 for (int index = 0; index < collected_invoked_methods->length(); index++) { | |
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154 Method* m = collected_invoked_methods->at(index); |
0 | 155 int c = m->invocation_count() + m->compiled_invocation_count(); |
156 if (c >= MethodHistogramCutoff) m->print_invocation_count(); | |
157 int_total += m->invocation_count(); | |
158 comp_total += m->compiled_invocation_count(); | |
159 if (m->is_final()) final_total += c; | |
160 if (m->is_static()) static_total += c; | |
161 if (m->is_synchronized()) synch_total += c; | |
162 if (m->is_native()) nativ_total += c; | |
163 if (m->is_accessor()) acces_total += c; | |
164 } | |
165 tty->cr(); | |
166 total = int_total + comp_total; | |
167 tty->print_cr("Invocations summary:"); | |
168 tty->print_cr("\t%9d (%4.1f%%) interpreted", int_total, 100.0 * int_total / total); | |
169 tty->print_cr("\t%9d (%4.1f%%) compiled", comp_total, 100.0 * comp_total / total); | |
170 tty->print_cr("\t%9d (100%%) total", total); | |
171 tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total, 100.0 * synch_total / total); | |
172 tty->print_cr("\t%9d (%4.1f%%) final", final_total, 100.0 * final_total / total); | |
173 tty->print_cr("\t%9d (%4.1f%%) static", static_total, 100.0 * static_total / total); | |
174 tty->print_cr("\t%9d (%4.1f%%) native", nativ_total, 100.0 * nativ_total / total); | |
175 tty->print_cr("\t%9d (%4.1f%%) accessor", acces_total, 100.0 * acces_total / total); | |
176 tty->cr(); | |
177 SharedRuntime::print_call_statistics(comp_total); | |
178 } | |
179 | |
180 void print_method_profiling_data() { | |
181 ResourceMark rm; | |
182 HandleMark hm; | |
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183 collected_profiled_methods = new GrowableArray<Method*>(1024); |
0 | 184 SystemDictionary::methods_do(collect_profiled_methods); |
185 collected_profiled_methods->sort(&compare_methods); | |
186 | |
187 int count = collected_profiled_methods->length(); | |
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188 int total_size = 0; |
0 | 189 if (count > 0) { |
190 for (int index = 0; index < count; index++) { | |
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191 Method* m = collected_profiled_methods->at(index); |
0 | 192 ttyLocker ttyl; |
193 tty->print_cr("------------------------------------------------------------------------"); | |
194 //m->print_name(tty); | |
195 m->print_invocation_count(); | |
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196 tty->print_cr(" mdo size: %d bytes", m->method_data()->size_in_bytes()); |
0 | 197 tty->cr(); |
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198 // Dump data on parameters if any |
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199 if (m->method_data() != NULL && m->method_data()->parameters_type_data() != NULL) { |
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200 tty->fill_to(2); |
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201 m->method_data()->parameters_type_data()->print_data_on(tty); |
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202 } |
0 | 203 m->print_codes(); |
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204 total_size += m->method_data()->size_in_bytes(); |
0 | 205 } |
206 tty->print_cr("------------------------------------------------------------------------"); | |
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207 tty->print_cr("Total MDO size: %d bytes", total_size); |
0 | 208 } |
209 } | |
210 | |
211 void print_bytecode_count() { | |
212 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
213 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value()); | |
214 } | |
215 } | |
216 | |
217 AllocStats alloc_stats; | |
218 | |
219 | |
220 | |
221 // General statistics printing (profiling ...) | |
222 void print_statistics() { | |
223 #ifdef ASSERT | |
224 | |
225 if (CountRuntimeCalls) { | |
226 extern Histogram *RuntimeHistogram; | |
227 RuntimeHistogram->print(); | |
228 } | |
229 | |
230 if (CountJNICalls) { | |
231 extern Histogram *JNIHistogram; | |
232 JNIHistogram->print(); | |
233 } | |
234 | |
235 if (CountJVMCalls) { | |
236 extern Histogram *JVMHistogram; | |
237 JVMHistogram->print(); | |
238 } | |
239 | |
240 #endif | |
241 | |
242 if (MemProfiling) { | |
243 MemProfiler::disengage(); | |
244 } | |
245 | |
246 if (CITime) { | |
247 CompileBroker::print_times(); | |
248 } | |
249 | |
250 #ifdef COMPILER1 | |
251 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
252 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics); | |
253 Runtime1::print_statistics(); | |
254 Deoptimization::print_statistics(); | |
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255 SharedRuntime::print_statistics(); |
0 | 256 nmethod::print_statistics(); |
257 } | |
258 #endif /* COMPILER1 */ | |
259 | |
260 #ifdef COMPILER2 | |
261 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
262 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); | |
263 Compile::print_statistics(); | |
264 #ifndef COMPILER1 | |
265 Deoptimization::print_statistics(); | |
266 nmethod::print_statistics(); | |
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267 SharedRuntime::print_statistics(); |
0 | 268 #endif //COMPILER1 |
269 os::print_statistics(); | |
270 } | |
271 | |
17780 | 272 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics || PrintPreciseRTMLockingStatistics) { |
0 | 273 OptoRuntime::print_named_counters(); |
274 } | |
275 | |
276 if (TimeLivenessAnalysis) { | |
277 MethodLiveness::print_times(); | |
278 } | |
279 #ifdef ASSERT | |
280 if (CollectIndexSetStatistics) { | |
281 IndexSet::print_statistics(); | |
282 } | |
283 #endif // ASSERT | |
284 #endif // COMPILER2 | |
285 if (CountCompiledCalls) { | |
286 print_method_invocation_histogram(); | |
287 } | |
1918 | 288 if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) { |
0 | 289 print_method_profiling_data(); |
290 } | |
291 if (TimeCompiler) { | |
292 COMPILER2_PRESENT(Compile::print_timers();) | |
293 } | |
294 if (TimeCompilationPolicy) { | |
295 CompilationPolicy::policy()->print_time(); | |
296 } | |
297 if (TimeOopMap) { | |
298 GenerateOopMap::print_time(); | |
299 } | |
300 if (ProfilerCheckIntervals) { | |
301 PeriodicTask::print_intervals(); | |
302 } | |
303 if (PrintSymbolTableSizeHistogram) { | |
304 SymbolTable::print_histogram(); | |
305 } | |
306 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
307 BytecodeCounter::print(); | |
308 } | |
309 if (PrintBytecodePairHistogram) { | |
310 BytecodePairHistogram::print(); | |
311 } | |
312 | |
313 if (PrintCodeCache) { | |
314 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
315 CodeCache::print(); | |
316 } | |
317 | |
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318 if (PrintMethodFlushingStatistics) { |
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319 NMethodSweeper::print(); |
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320 } |
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321 |
0 | 322 if (PrintCodeCache2) { |
323 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
324 CodeCache::print_internals(); | |
325 } | |
326 | |
327 if (PrintClassStatistics) { | |
328 SystemDictionary::print_class_statistics(); | |
329 } | |
330 if (PrintMethodStatistics) { | |
331 SystemDictionary::print_method_statistics(); | |
332 } | |
333 | |
334 if (PrintVtableStats) { | |
335 klassVtable::print_statistics(); | |
336 klassItable::print_statistics(); | |
337 } | |
338 if (VerifyOops) { | |
339 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count()); | |
340 } | |
341 | |
342 print_bytecode_count(); | |
2250 | 343 if (PrintMallocStatistics) { |
0 | 344 tty->print("allocation stats: "); |
345 alloc_stats.print(); | |
346 tty->cr(); | |
347 } | |
348 | |
349 if (PrintSystemDictionaryAtExit) { | |
350 SystemDictionary::print(); | |
351 } | |
352 | |
353 if (PrintBiasedLockingStatistics) { | |
354 BiasedLocking::print_counters(); | |
355 } | |
356 | |
357 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
358 #ifdef COMPILER2 | |
359 if (ZapDeadCompiledLocals) { | |
360 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count); | |
361 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count); | |
362 } | |
363 #endif // COMPILER2 | |
364 #endif // ENABLE_ZAP_DEAD_LOCALS | |
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365 // Native memory tracking data |
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366 if (PrintNMTStatistics) { |
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367 if (MemTracker::is_on()) { |
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368 BaselineTTYOutputer outputer(tty); |
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369 MemTracker::print_memory_usage(outputer, K, false); |
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370 } else { |
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371 tty->print_cr("%s", MemTracker::reason()); |
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372 } |
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373 } |
0 | 374 } |
375 | |
376 #else // PRODUCT MODE STATISTICS | |
377 | |
378 void print_statistics() { | |
379 | |
380 if (CITime) { | |
381 CompileBroker::print_times(); | |
382 } | |
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383 |
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384 if (PrintCodeCache) { |
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385 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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386 CodeCache::print(); |
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387 } |
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388 |
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389 if (PrintMethodFlushingStatistics) { |
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390 NMethodSweeper::print(); |
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391 } |
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392 |
0 | 393 #ifdef COMPILER2 |
17780 | 394 if (PrintPreciseBiasedLockingStatistics || PrintPreciseRTMLockingStatistics) { |
0 | 395 OptoRuntime::print_named_counters(); |
396 } | |
397 #endif | |
398 if (PrintBiasedLockingStatistics) { | |
399 BiasedLocking::print_counters(); | |
400 } | |
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401 |
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402 // Native memory tracking data |
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403 if (PrintNMTStatistics) { |
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404 if (MemTracker::is_on()) { |
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405 BaselineTTYOutputer outputer(tty); |
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406 MemTracker::print_memory_usage(outputer, K, false); |
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407 } else { |
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408 tty->print_cr("%s", MemTracker::reason()); |
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409 } |
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410 } |
0 | 411 } |
412 | |
413 #endif | |
414 | |
415 | |
416 // Helper class for registering on_exit calls through JVM_OnExit | |
417 | |
418 extern "C" { | |
419 typedef void (*__exit_proc)(void); | |
420 } | |
421 | |
6197 | 422 class ExitProc : public CHeapObj<mtInternal> { |
0 | 423 private: |
424 __exit_proc _proc; | |
425 // void (*_proc)(void); | |
426 ExitProc* _next; | |
427 public: | |
428 // ExitProc(void (*proc)(void)) { | |
429 ExitProc(__exit_proc proc) { | |
430 _proc = proc; | |
431 _next = NULL; | |
432 } | |
433 void evaluate() { _proc(); } | |
434 ExitProc* next() const { return _next; } | |
435 void set_next(ExitProc* next) { _next = next; } | |
436 }; | |
437 | |
438 | |
439 // Linked list of registered on_exit procedures | |
440 | |
441 static ExitProc* exit_procs = NULL; | |
442 | |
443 | |
444 extern "C" { | |
445 void register_on_exit_function(void (*func)(void)) { | |
446 ExitProc *entry = new ExitProc(func); | |
447 // Classic vm does not throw an exception in case the allocation failed, | |
448 if (entry != NULL) { | |
449 entry->set_next(exit_procs); | |
450 exit_procs = entry; | |
451 } | |
452 } | |
453 } | |
454 | |
455 // Note: before_exit() can be executed only once, if more than one threads | |
456 // are trying to shutdown the VM at the same time, only one thread | |
457 // can run before_exit() and all other threads must wait. | |
458 void before_exit(JavaThread * thread) { | |
459 #define BEFORE_EXIT_NOT_RUN 0 | |
460 #define BEFORE_EXIT_RUNNING 1 | |
461 #define BEFORE_EXIT_DONE 2 | |
462 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; | |
463 | |
464 // Note: don't use a Mutex to guard the entire before_exit(), as | |
465 // JVMTI post_thread_end_event and post_vm_death_event will run native code. | |
466 // A CAS or OSMutex would work just fine but then we need to manipulate | |
467 // thread state for Safepoint. Here we use Monitor wait() and notify_all() | |
468 // for synchronization. | |
469 { MutexLocker ml(BeforeExit_lock); | |
470 switch (_before_exit_status) { | |
471 case BEFORE_EXIT_NOT_RUN: | |
472 _before_exit_status = BEFORE_EXIT_RUNNING; | |
473 break; | |
474 case BEFORE_EXIT_RUNNING: | |
475 while (_before_exit_status == BEFORE_EXIT_RUNNING) { | |
476 BeforeExit_lock->wait(); | |
477 } | |
478 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); | |
479 return; | |
480 case BEFORE_EXIT_DONE: | |
481 return; | |
482 } | |
483 } | |
484 | |
485 // The only difference between this and Win32's _onexit procs is that | |
486 // this version is invoked before any threads get killed. | |
487 ExitProc* current = exit_procs; | |
488 while (current != NULL) { | |
489 ExitProc* next = current->next(); | |
490 current->evaluate(); | |
491 delete current; | |
492 current = next; | |
493 } | |
494 | |
495 // Hang forever on exit if we're reporting an error. | |
496 if (ShowMessageBoxOnError && is_error_reported()) { | |
497 os::infinite_sleep(); | |
498 } | |
499 | |
500 // Terminate watcher thread - must before disenrolling any periodic task | |
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501 if (PeriodicTask::num_tasks() > 0) |
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502 WatcherThread::stop(); |
0 | 503 |
504 // Print statistics gathered (profiling ...) | |
505 if (Arguments::has_profile()) { | |
506 FlatProfiler::disengage(); | |
507 FlatProfiler::print(10); | |
508 } | |
509 | |
510 // shut down the StatSampler task | |
511 StatSampler::disengage(); | |
512 StatSampler::destroy(); | |
513 | |
17992 | 514 // Stop concurrent GC threads |
515 Universe::heap()->stop(); | |
0 | 516 |
517 // Print GC/heap related information. | |
518 if (PrintGCDetails) { | |
519 Universe::print(); | |
520 AdaptiveSizePolicyOutput(0); | |
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521 if (Verbose) { |
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522 ClassLoaderDataGraph::dump_on(gclog_or_tty); |
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523 } |
0 | 524 } |
525 | |
526 if (PrintBytecodeHistogram) { | |
527 BytecodeHistogram::print(); | |
528 } | |
529 | |
530 if (JvmtiExport::should_post_thread_life()) { | |
531 JvmtiExport::post_thread_end(thread); | |
532 } | |
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533 |
10405 | 534 |
535 EventThreadEnd event; | |
536 if (event.should_commit()) { | |
537 event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj())); | |
538 event.commit(); | |
539 } | |
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540 |
0 | 541 // Always call even when there are not JVMTI environments yet, since environments |
542 // may be attached late and JVMTI must track phases of VM execution | |
543 JvmtiExport::post_vm_death(); | |
544 Threads::shutdown_vm_agents(); | |
545 | |
546 // Terminate the signal thread | |
547 // Note: we don't wait until it actually dies. | |
548 os::terminate_signal_thread(); | |
549 | |
550 print_statistics(); | |
551 Universe::heap()->print_tracing_info(); | |
552 | |
553 { MutexLocker ml(BeforeExit_lock); | |
554 _before_exit_status = BEFORE_EXIT_DONE; | |
555 BeforeExit_lock->notify_all(); | |
556 } | |
557 | |
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558 // Shutdown NMT before exit. Otherwise, |
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559 // it will run into trouble when system destroys static variables. |
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560 MemTracker::shutdown(MemTracker::NMT_normal); |
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561 |
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562 if (VerifyStringTableAtExit) { |
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563 int fail_cnt = 0; |
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564 { |
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565 MutexLocker ml(StringTable_lock); |
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566 fail_cnt = StringTable::verify_and_compare_entries(); |
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567 } |
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568 |
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569 if (fail_cnt != 0) { |
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570 tty->print_cr("ERROR: fail_cnt=%d", fail_cnt); |
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571 guarantee(fail_cnt == 0, "unexpected StringTable verification failures"); |
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572 } |
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573 } |
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574 |
0 | 575 #undef BEFORE_EXIT_NOT_RUN |
576 #undef BEFORE_EXIT_RUNNING | |
577 #undef BEFORE_EXIT_DONE | |
578 } | |
579 | |
580 void vm_exit(int code) { | |
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581 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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582 ThreadLocalStorage::get_thread_slow() : NULL; |
0 | 583 if (thread == NULL) { |
584 // we have serious problems -- just exit | |
585 vm_direct_exit(code); | |
586 } | |
587 | |
588 if (VMThread::vm_thread() != NULL) { | |
589 // Fire off a VM_Exit operation to bring VM to a safepoint and exit | |
590 VM_Exit op(code); | |
591 if (thread->is_Java_thread()) | |
592 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); | |
593 VMThread::execute(&op); | |
594 // should never reach here; but in case something wrong with VM Thread. | |
595 vm_direct_exit(code); | |
596 } else { | |
597 // VM thread is gone, just exit | |
598 vm_direct_exit(code); | |
599 } | |
600 ShouldNotReachHere(); | |
601 } | |
602 | |
603 void notify_vm_shutdown() { | |
604 // For now, just a dtrace probe. | |
4006 | 605 #ifndef USDT2 |
0 | 606 HS_DTRACE_PROBE(hotspot, vm__shutdown); |
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607 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); |
4006 | 608 #else /* USDT2 */ |
609 HOTSPOT_VM_SHUTDOWN(); | |
610 #endif /* USDT2 */ | |
0 | 611 } |
612 | |
613 void vm_direct_exit(int code) { | |
614 notify_vm_shutdown(); | |
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615 os::wait_for_keypress_at_exit(); |
0 | 616 ::exit(code); |
617 } | |
618 | |
619 void vm_perform_shutdown_actions() { | |
620 // Warning: do not call 'exit_globals()' here. All threads are still running. | |
621 // Calling 'exit_globals()' will disable thread-local-storage and cause all | |
622 // kinds of assertions to trigger in debug mode. | |
623 if (is_init_completed()) { | |
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624 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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625 ThreadLocalStorage::get_thread_slow() : NULL; |
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626 if (thread != NULL && thread->is_Java_thread()) { |
0 | 627 // We are leaving the VM, set state to native (in case any OS exit |
628 // handlers call back to the VM) | |
629 JavaThread* jt = (JavaThread*)thread; | |
630 // Must always be walkable or have no last_Java_frame when in | |
631 // thread_in_native | |
632 jt->frame_anchor()->make_walkable(jt); | |
633 jt->set_thread_state(_thread_in_native); | |
634 } | |
635 } | |
636 notify_vm_shutdown(); | |
637 } | |
638 | |
639 void vm_shutdown() | |
640 { | |
641 vm_perform_shutdown_actions(); | |
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642 os::wait_for_keypress_at_exit(); |
0 | 643 os::shutdown(); |
644 } | |
645 | |
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646 void vm_abort(bool dump_core) { |
0 | 647 vm_perform_shutdown_actions(); |
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648 os::wait_for_keypress_at_exit(); |
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649 os::abort(dump_core); |
0 | 650 ShouldNotReachHere(); |
651 } | |
652 | |
653 void vm_notify_during_shutdown(const char* error, const char* message) { | |
654 if (error != NULL) { | |
655 tty->print_cr("Error occurred during initialization of VM"); | |
656 tty->print("%s", error); | |
657 if (message != NULL) { | |
658 tty->print_cr(": %s", message); | |
659 } | |
660 else { | |
661 tty->cr(); | |
662 } | |
663 } | |
664 if (ShowMessageBoxOnError && WizardMode) { | |
665 fatal("Error occurred during initialization of VM"); | |
666 } | |
667 } | |
668 | |
669 void vm_exit_during_initialization(Handle exception) { | |
670 tty->print_cr("Error occurred during initialization of VM"); | |
671 // If there are exceptions on this thread it must be cleared | |
672 // first and here. Any future calls to EXCEPTION_MARK requires | |
673 // that no pending exceptions exist. | |
674 Thread *THREAD = Thread::current(); | |
675 if (HAS_PENDING_EXCEPTION) { | |
676 CLEAR_PENDING_EXCEPTION; | |
677 } | |
678 java_lang_Throwable::print(exception, tty); | |
679 tty->cr(); | |
680 java_lang_Throwable::print_stack_trace(exception(), tty); | |
681 tty->cr(); | |
682 vm_notify_during_shutdown(NULL, NULL); | |
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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 | |
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688 void vm_exit_during_initialization(Symbol* ex, const char* message) { |
0 | 689 ResourceMark rm; |
690 vm_notify_during_shutdown(ex->as_C_string(), message); | |
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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 | |
696 void vm_exit_during_initialization(const char* error, const char* message) { | |
697 vm_notify_during_shutdown(error, message); | |
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698 |
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699 // Failure during initialization, we don't want to dump core |
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700 vm_abort(false); |
0 | 701 } |
702 | |
703 void vm_shutdown_during_initialization(const char* error, const char* message) { | |
704 vm_notify_during_shutdown(error, message); | |
705 vm_shutdown(); | |
706 } | |
707 | |
242 | 708 JDK_Version JDK_Version::_current; |
6181 | 709 const char* JDK_Version::_runtime_name; |
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710 const char* JDK_Version::_runtime_version; |
0 | 711 |
712 void JDK_Version::initialize() { | |
242 | 713 jdk_version_info info; |
714 assert(!_current.is_valid(), "Don't initialize twice"); | |
715 | |
0 | 716 void *lib_handle = os::native_java_library(); |
242 | 717 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t, |
718 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); | |
0 | 719 |
720 if (func == NULL) { | |
721 // JDK older than 1.6 | |
242 | 722 _current._partially_initialized = true; |
723 } else { | |
724 (*func)(&info, sizeof(info)); | |
0 | 725 |
242 | 726 int major = JDK_VERSION_MAJOR(info.jdk_version); |
727 int minor = JDK_VERSION_MINOR(info.jdk_version); | |
728 int micro = JDK_VERSION_MICRO(info.jdk_version); | |
729 int build = JDK_VERSION_BUILD(info.jdk_version); | |
730 if (major == 1 && minor > 4) { | |
731 // We represent "1.5.0" as "5.0", but 1.4.2 as itself. | |
732 major = minor; | |
733 minor = micro; | |
734 micro = 0; | |
735 } | |
736 _current = JDK_Version(major, minor, micro, info.update_version, | |
737 info.special_update_version, build, | |
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738 info.thread_park_blocker == 1, |
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739 info.post_vm_init_hook_enabled == 1, |
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740 info.pending_list_uses_discovered_field == 1); |
0 | 741 } |
242 | 742 } |
743 | |
744 void JDK_Version::fully_initialize( | |
745 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) { | |
746 // This is only called when current is less than 1.6 and we've gotten | |
747 // far enough in the initialization to determine the exact version. | |
748 assert(major < 6, "not needed for JDK version >= 6"); | |
749 assert(is_partially_initialized(), "must not initialize"); | |
750 if (major < 5) { | |
751 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc. | |
752 micro = minor; | |
753 minor = major; | |
754 major = 1; | |
0 | 755 } |
242 | 756 _current = JDK_Version(major, minor, micro, update); |
0 | 757 } |
758 | |
759 void JDK_Version_init() { | |
760 JDK_Version::initialize(); | |
761 } | |
242 | 762 |
763 static int64_t encode_jdk_version(const JDK_Version& v) { | |
764 return | |
765 ((int64_t)v.major_version() << (BitsPerByte * 5)) | | |
766 ((int64_t)v.minor_version() << (BitsPerByte * 4)) | | |
767 ((int64_t)v.micro_version() << (BitsPerByte * 3)) | | |
768 ((int64_t)v.update_version() << (BitsPerByte * 2)) | | |
769 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) | | |
770 ((int64_t)v.build_number() << (BitsPerByte * 0)); | |
771 } | |
772 | |
773 int JDK_Version::compare(const JDK_Version& other) const { | |
774 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)"); | |
775 if (!is_partially_initialized() && other.is_partially_initialized()) { | |
776 return -(other.compare(*this)); // flip the comparators | |
777 } | |
778 assert(!other.is_partially_initialized(), "Not initialized yet"); | |
779 if (is_partially_initialized()) { | |
780 assert(other.major_version() >= 6, | |
781 "Invalid JDK version comparison during initialization"); | |
782 return -1; | |
783 } else { | |
784 uint64_t e = encode_jdk_version(*this); | |
785 uint64_t o = encode_jdk_version(other); | |
786 return (e > o) ? 1 : ((e == o) ? 0 : -1); | |
787 } | |
788 } | |
789 | |
790 void JDK_Version::to_string(char* buffer, size_t buflen) const { | |
791 size_t index = 0; | |
792 if (!is_valid()) { | |
793 jio_snprintf(buffer, buflen, "%s", "(uninitialized)"); | |
794 } else if (is_partially_initialized()) { | |
795 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0"); | |
796 } else { | |
797 index += jio_snprintf( | |
798 &buffer[index], buflen - index, "%d.%d", _major, _minor); | |
799 if (_micro > 0) { | |
800 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro); | |
801 } | |
802 if (_update > 0) { | |
803 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update); | |
804 } | |
805 if (_special > 0) { | |
806 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special); | |
807 } | |
808 if (_build > 0) { | |
809 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build); | |
810 } | |
811 } | |
812 } |