Mercurial > hg > truffle
annotate src/share/vm/runtime/java.cpp @ 4128:f1391adc6681
7112034: Parallel CMS fails to properly mark reference objects
Summary: Enabled reference processing when work stealing during concurrent marking
Reviewed-by: jmasa, brutisso
author | stefank |
---|---|
date | Mon, 28 Nov 2011 10:19:26 +0100 |
parents | 436b4a3231bf |
children | 04b9a2566eec 94ec88ca68e2 |
rev | line source |
---|---|
0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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" | |
36 #include "oops/constantPoolOop.hpp" | |
37 #include "oops/generateOopMap.hpp" | |
38 #include "oops/instanceKlass.hpp" | |
39 #include "oops/instanceKlassKlass.hpp" | |
40 #include "oops/instanceOop.hpp" | |
41 #include "oops/methodOop.hpp" | |
42 #include "oops/objArrayOop.hpp" | |
43 #include "oops/oop.inline.hpp" | |
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44 #include "oops/symbol.hpp" |
1972 | 45 #include "prims/jvmtiExport.hpp" |
46 #include "runtime/aprofiler.hpp" | |
47 #include "runtime/arguments.hpp" | |
48 #include "runtime/biasedLocking.hpp" | |
49 #include "runtime/compilationPolicy.hpp" | |
50 #include "runtime/fprofiler.hpp" | |
51 #include "runtime/init.hpp" | |
52 #include "runtime/interfaceSupport.hpp" | |
53 #include "runtime/java.hpp" | |
54 #include "runtime/memprofiler.hpp" | |
55 #include "runtime/sharedRuntime.hpp" | |
56 #include "runtime/statSampler.hpp" | |
57 #include "runtime/task.hpp" | |
58 #include "runtime/timer.hpp" | |
59 #include "runtime/vm_operations.hpp" | |
60 #include "utilities/dtrace.hpp" | |
61 #include "utilities/globalDefinitions.hpp" | |
62 #include "utilities/histogram.hpp" | |
63 #include "utilities/vmError.hpp" | |
64 #ifdef TARGET_ARCH_x86 | |
65 # include "vm_version_x86.hpp" | |
66 #endif | |
67 #ifdef TARGET_ARCH_sparc | |
68 # include "vm_version_sparc.hpp" | |
69 #endif | |
70 #ifdef TARGET_ARCH_zero | |
71 # include "vm_version_zero.hpp" | |
72 #endif | |
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73 #ifdef TARGET_ARCH_arm |
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74 # include "vm_version_arm.hpp" |
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75 #endif |
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76 #ifdef TARGET_ARCH_ppc |
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77 # include "vm_version_ppc.hpp" |
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78 #endif |
1972 | 79 #ifdef TARGET_OS_FAMILY_linux |
80 # include "thread_linux.inline.hpp" | |
81 #endif | |
82 #ifdef TARGET_OS_FAMILY_solaris | |
83 # include "thread_solaris.inline.hpp" | |
84 #endif | |
85 #ifdef TARGET_OS_FAMILY_windows | |
86 # include "thread_windows.inline.hpp" | |
87 #endif | |
3960 | 88 #ifdef TARGET_OS_FAMILY_bsd |
89 # include "thread_bsd.inline.hpp" | |
90 #endif | |
1972 | 91 #ifndef SERIALGC |
92 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp" | |
93 #include "gc_implementation/parallelScavenge/psScavenge.hpp" | |
94 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
95 #endif | |
96 #ifdef COMPILER1 | |
97 #include "c1/c1_Compiler.hpp" | |
98 #include "c1/c1_Runtime1.hpp" | |
99 #endif | |
100 #ifdef COMPILER2 | |
101 #include "code/compiledIC.hpp" | |
102 #include "compiler/methodLiveness.hpp" | |
103 #include "opto/compile.hpp" | |
104 #include "opto/indexSet.hpp" | |
105 #include "opto/runtime.hpp" | |
106 #endif | |
0 | 107 |
4006 | 108 #ifndef USDT2 |
0 | 109 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown); |
4006 | 110 #endif /* !USDT2 */ |
0 | 111 |
112 #ifndef PRODUCT | |
113 | |
114 // Statistics printing (method invocation histogram) | |
115 | |
116 GrowableArray<methodOop>* collected_invoked_methods; | |
117 | |
118 void collect_invoked_methods(methodOop m) { | |
119 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) { | |
120 collected_invoked_methods->push(m); | |
121 } | |
122 } | |
123 | |
124 | |
125 GrowableArray<methodOop>* collected_profiled_methods; | |
126 | |
127 void collect_profiled_methods(methodOop m) { | |
128 methodHandle mh(Thread::current(), m); | |
129 if ((m->method_data() != NULL) && | |
130 (PrintMethodData || CompilerOracle::should_print(mh))) { | |
131 collected_profiled_methods->push(m); | |
132 } | |
133 } | |
134 | |
135 | |
136 int compare_methods(methodOop* a, methodOop* b) { | |
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; | |
146 collected_invoked_methods = new GrowableArray<methodOop>(1024); | |
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++) { | |
157 methodOop m = collected_invoked_methods->at(index); | |
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; | |
186 collected_profiled_methods = new GrowableArray<methodOop>(1024); | |
187 SystemDictionary::methods_do(collect_profiled_methods); | |
188 collected_profiled_methods->sort(&compare_methods); | |
189 | |
190 int count = collected_profiled_methods->length(); | |
191 if (count > 0) { | |
192 for (int index = 0; index < count; index++) { | |
193 methodOop m = collected_profiled_methods->at(index); | |
194 ttyLocker ttyl; | |
195 tty->print_cr("------------------------------------------------------------------------"); | |
196 //m->print_name(tty); | |
197 m->print_invocation_count(); | |
198 tty->cr(); | |
199 m->print_codes(); | |
200 } | |
201 tty->print_cr("------------------------------------------------------------------------"); | |
202 } | |
203 } | |
204 | |
205 void print_bytecode_count() { | |
206 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
207 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value()); | |
208 } | |
209 } | |
210 | |
211 AllocStats alloc_stats; | |
212 | |
213 | |
214 | |
215 // General statistics printing (profiling ...) | |
216 | |
217 void print_statistics() { | |
218 | |
219 #ifdef ASSERT | |
220 | |
221 if (CountRuntimeCalls) { | |
222 extern Histogram *RuntimeHistogram; | |
223 RuntimeHistogram->print(); | |
224 } | |
225 | |
226 if (CountJNICalls) { | |
227 extern Histogram *JNIHistogram; | |
228 JNIHistogram->print(); | |
229 } | |
230 | |
231 if (CountJVMCalls) { | |
232 extern Histogram *JVMHistogram; | |
233 JVMHistogram->print(); | |
234 } | |
235 | |
236 #endif | |
237 | |
238 if (MemProfiling) { | |
239 MemProfiler::disengage(); | |
240 } | |
241 | |
242 if (CITime) { | |
243 CompileBroker::print_times(); | |
244 } | |
245 | |
246 #ifdef COMPILER1 | |
247 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
248 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics); | |
249 Runtime1::print_statistics(); | |
250 Deoptimization::print_statistics(); | |
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251 SharedRuntime::print_statistics(); |
0 | 252 nmethod::print_statistics(); |
253 } | |
254 #endif /* COMPILER1 */ | |
255 | |
256 #ifdef COMPILER2 | |
257 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
258 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); | |
259 Compile::print_statistics(); | |
260 #ifndef COMPILER1 | |
261 Deoptimization::print_statistics(); | |
262 nmethod::print_statistics(); | |
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263 SharedRuntime::print_statistics(); |
0 | 264 #endif //COMPILER1 |
265 os::print_statistics(); | |
266 } | |
267 | |
268 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics) { | |
269 OptoRuntime::print_named_counters(); | |
270 } | |
271 | |
272 if (TimeLivenessAnalysis) { | |
273 MethodLiveness::print_times(); | |
274 } | |
275 #ifdef ASSERT | |
276 if (CollectIndexSetStatistics) { | |
277 IndexSet::print_statistics(); | |
278 } | |
279 #endif // ASSERT | |
280 #endif // COMPILER2 | |
281 if (CountCompiledCalls) { | |
282 print_method_invocation_histogram(); | |
283 } | |
1918 | 284 if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) { |
0 | 285 print_method_profiling_data(); |
286 } | |
287 if (TimeCompiler) { | |
288 COMPILER2_PRESENT(Compile::print_timers();) | |
289 } | |
290 if (TimeCompilationPolicy) { | |
291 CompilationPolicy::policy()->print_time(); | |
292 } | |
293 if (TimeOopMap) { | |
294 GenerateOopMap::print_time(); | |
295 } | |
296 if (ProfilerCheckIntervals) { | |
297 PeriodicTask::print_intervals(); | |
298 } | |
299 if (PrintSymbolTableSizeHistogram) { | |
300 SymbolTable::print_histogram(); | |
301 } | |
302 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
303 BytecodeCounter::print(); | |
304 } | |
305 if (PrintBytecodePairHistogram) { | |
306 BytecodePairHistogram::print(); | |
307 } | |
308 | |
309 if (PrintCodeCache) { | |
310 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
311 CodeCache::print(); | |
312 } | |
313 | |
314 if (PrintCodeCache2) { | |
315 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
316 CodeCache::print_internals(); | |
317 } | |
318 | |
319 if (PrintClassStatistics) { | |
320 SystemDictionary::print_class_statistics(); | |
321 } | |
322 if (PrintMethodStatistics) { | |
323 SystemDictionary::print_method_statistics(); | |
324 } | |
325 | |
326 if (PrintVtableStats) { | |
327 klassVtable::print_statistics(); | |
328 klassItable::print_statistics(); | |
329 } | |
330 if (VerifyOops) { | |
331 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count()); | |
332 } | |
333 | |
334 print_bytecode_count(); | |
2250 | 335 if (PrintMallocStatistics) { |
0 | 336 tty->print("allocation stats: "); |
337 alloc_stats.print(); | |
338 tty->cr(); | |
339 } | |
340 | |
341 if (PrintSystemDictionaryAtExit) { | |
342 SystemDictionary::print(); | |
343 } | |
344 | |
345 if (PrintBiasedLockingStatistics) { | |
346 BiasedLocking::print_counters(); | |
347 } | |
348 | |
349 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
350 #ifdef COMPILER2 | |
351 if (ZapDeadCompiledLocals) { | |
352 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count); | |
353 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count); | |
354 } | |
355 #endif // COMPILER2 | |
356 #endif // ENABLE_ZAP_DEAD_LOCALS | |
357 } | |
358 | |
359 #else // PRODUCT MODE STATISTICS | |
360 | |
361 void print_statistics() { | |
362 | |
363 if (CITime) { | |
364 CompileBroker::print_times(); | |
365 } | |
366 #ifdef COMPILER2 | |
367 if (PrintPreciseBiasedLockingStatistics) { | |
368 OptoRuntime::print_named_counters(); | |
369 } | |
370 #endif | |
371 if (PrintBiasedLockingStatistics) { | |
372 BiasedLocking::print_counters(); | |
373 } | |
374 } | |
375 | |
376 #endif | |
377 | |
378 | |
379 // Helper class for registering on_exit calls through JVM_OnExit | |
380 | |
381 extern "C" { | |
382 typedef void (*__exit_proc)(void); | |
383 } | |
384 | |
385 class ExitProc : public CHeapObj { | |
386 private: | |
387 __exit_proc _proc; | |
388 // void (*_proc)(void); | |
389 ExitProc* _next; | |
390 public: | |
391 // ExitProc(void (*proc)(void)) { | |
392 ExitProc(__exit_proc proc) { | |
393 _proc = proc; | |
394 _next = NULL; | |
395 } | |
396 void evaluate() { _proc(); } | |
397 ExitProc* next() const { return _next; } | |
398 void set_next(ExitProc* next) { _next = next; } | |
399 }; | |
400 | |
401 | |
402 // Linked list of registered on_exit procedures | |
403 | |
404 static ExitProc* exit_procs = NULL; | |
405 | |
406 | |
407 extern "C" { | |
408 void register_on_exit_function(void (*func)(void)) { | |
409 ExitProc *entry = new ExitProc(func); | |
410 // Classic vm does not throw an exception in case the allocation failed, | |
411 if (entry != NULL) { | |
412 entry->set_next(exit_procs); | |
413 exit_procs = entry; | |
414 } | |
415 } | |
416 } | |
417 | |
418 // Note: before_exit() can be executed only once, if more than one threads | |
419 // are trying to shutdown the VM at the same time, only one thread | |
420 // can run before_exit() and all other threads must wait. | |
421 void before_exit(JavaThread * thread) { | |
422 #define BEFORE_EXIT_NOT_RUN 0 | |
423 #define BEFORE_EXIT_RUNNING 1 | |
424 #define BEFORE_EXIT_DONE 2 | |
425 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; | |
426 | |
427 // Note: don't use a Mutex to guard the entire before_exit(), as | |
428 // JVMTI post_thread_end_event and post_vm_death_event will run native code. | |
429 // A CAS or OSMutex would work just fine but then we need to manipulate | |
430 // thread state for Safepoint. Here we use Monitor wait() and notify_all() | |
431 // for synchronization. | |
432 { MutexLocker ml(BeforeExit_lock); | |
433 switch (_before_exit_status) { | |
434 case BEFORE_EXIT_NOT_RUN: | |
435 _before_exit_status = BEFORE_EXIT_RUNNING; | |
436 break; | |
437 case BEFORE_EXIT_RUNNING: | |
438 while (_before_exit_status == BEFORE_EXIT_RUNNING) { | |
439 BeforeExit_lock->wait(); | |
440 } | |
441 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); | |
442 return; | |
443 case BEFORE_EXIT_DONE: | |
444 return; | |
445 } | |
446 } | |
447 | |
448 // The only difference between this and Win32's _onexit procs is that | |
449 // this version is invoked before any threads get killed. | |
450 ExitProc* current = exit_procs; | |
451 while (current != NULL) { | |
452 ExitProc* next = current->next(); | |
453 current->evaluate(); | |
454 delete current; | |
455 current = next; | |
456 } | |
457 | |
458 // Hang forever on exit if we're reporting an error. | |
459 if (ShowMessageBoxOnError && is_error_reported()) { | |
460 os::infinite_sleep(); | |
461 } | |
462 | |
463 // Terminate watcher thread - must before disenrolling any periodic task | |
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464 if (PeriodicTask::num_tasks() > 0) |
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465 WatcherThread::stop(); |
0 | 466 |
467 // Print statistics gathered (profiling ...) | |
468 if (Arguments::has_profile()) { | |
469 FlatProfiler::disengage(); | |
470 FlatProfiler::print(10); | |
471 } | |
472 | |
473 // shut down the StatSampler task | |
474 StatSampler::disengage(); | |
475 StatSampler::destroy(); | |
476 | |
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477 // We do not need to explicitly stop concurrent GC threads because the |
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478 // JVM will be taken down at a safepoint when such threads are inactive -- |
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479 // except for some concurrent G1 threads, see (comment in) |
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480 // Threads::destroy_vm(). |
0 | 481 |
482 // Print GC/heap related information. | |
483 if (PrintGCDetails) { | |
484 Universe::print(); | |
485 AdaptiveSizePolicyOutput(0); | |
486 } | |
487 | |
488 | |
489 if (Arguments::has_alloc_profile()) { | |
490 HandleMark hm; | |
491 // Do one last collection to enumerate all the objects | |
492 // allocated since the last one. | |
493 Universe::heap()->collect(GCCause::_allocation_profiler); | |
494 AllocationProfiler::disengage(); | |
495 AllocationProfiler::print(0); | |
496 } | |
497 | |
498 if (PrintBytecodeHistogram) { | |
499 BytecodeHistogram::print(); | |
500 } | |
501 | |
502 if (JvmtiExport::should_post_thread_life()) { | |
503 JvmtiExport::post_thread_end(thread); | |
504 } | |
505 // Always call even when there are not JVMTI environments yet, since environments | |
506 // may be attached late and JVMTI must track phases of VM execution | |
507 JvmtiExport::post_vm_death(); | |
508 Threads::shutdown_vm_agents(); | |
509 | |
510 // Terminate the signal thread | |
511 // Note: we don't wait until it actually dies. | |
512 os::terminate_signal_thread(); | |
513 | |
514 print_statistics(); | |
515 Universe::heap()->print_tracing_info(); | |
516 | |
517 { MutexLocker ml(BeforeExit_lock); | |
518 _before_exit_status = BEFORE_EXIT_DONE; | |
519 BeforeExit_lock->notify_all(); | |
520 } | |
521 | |
522 #undef BEFORE_EXIT_NOT_RUN | |
523 #undef BEFORE_EXIT_RUNNING | |
524 #undef BEFORE_EXIT_DONE | |
525 } | |
526 | |
527 void vm_exit(int code) { | |
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528 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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529 ThreadLocalStorage::get_thread_slow() : NULL; |
0 | 530 if (thread == NULL) { |
531 // we have serious problems -- just exit | |
532 vm_direct_exit(code); | |
533 } | |
534 | |
535 if (VMThread::vm_thread() != NULL) { | |
536 // Fire off a VM_Exit operation to bring VM to a safepoint and exit | |
537 VM_Exit op(code); | |
538 if (thread->is_Java_thread()) | |
539 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); | |
540 VMThread::execute(&op); | |
541 // should never reach here; but in case something wrong with VM Thread. | |
542 vm_direct_exit(code); | |
543 } else { | |
544 // VM thread is gone, just exit | |
545 vm_direct_exit(code); | |
546 } | |
547 ShouldNotReachHere(); | |
548 } | |
549 | |
550 void notify_vm_shutdown() { | |
551 // For now, just a dtrace probe. | |
4006 | 552 #ifndef USDT2 |
0 | 553 HS_DTRACE_PROBE(hotspot, vm__shutdown); |
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554 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); |
4006 | 555 #else /* USDT2 */ |
556 HOTSPOT_VM_SHUTDOWN(); | |
557 #endif /* USDT2 */ | |
0 | 558 } |
559 | |
560 void vm_direct_exit(int code) { | |
561 notify_vm_shutdown(); | |
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562 os::wait_for_keypress_at_exit(); |
0 | 563 ::exit(code); |
564 } | |
565 | |
566 void vm_perform_shutdown_actions() { | |
567 // Warning: do not call 'exit_globals()' here. All threads are still running. | |
568 // Calling 'exit_globals()' will disable thread-local-storage and cause all | |
569 // kinds of assertions to trigger in debug mode. | |
570 if (is_init_completed()) { | |
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571 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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572 ThreadLocalStorage::get_thread_slow() : NULL; |
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573 if (thread != NULL && thread->is_Java_thread()) { |
0 | 574 // We are leaving the VM, set state to native (in case any OS exit |
575 // handlers call back to the VM) | |
576 JavaThread* jt = (JavaThread*)thread; | |
577 // Must always be walkable or have no last_Java_frame when in | |
578 // thread_in_native | |
579 jt->frame_anchor()->make_walkable(jt); | |
580 jt->set_thread_state(_thread_in_native); | |
581 } | |
582 } | |
583 notify_vm_shutdown(); | |
584 } | |
585 | |
586 void vm_shutdown() | |
587 { | |
588 vm_perform_shutdown_actions(); | |
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589 os::wait_for_keypress_at_exit(); |
0 | 590 os::shutdown(); |
591 } | |
592 | |
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593 void vm_abort(bool dump_core) { |
0 | 594 vm_perform_shutdown_actions(); |
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595 os::wait_for_keypress_at_exit(); |
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596 os::abort(dump_core); |
0 | 597 ShouldNotReachHere(); |
598 } | |
599 | |
600 void vm_notify_during_shutdown(const char* error, const char* message) { | |
601 if (error != NULL) { | |
602 tty->print_cr("Error occurred during initialization of VM"); | |
603 tty->print("%s", error); | |
604 if (message != NULL) { | |
605 tty->print_cr(": %s", message); | |
606 } | |
607 else { | |
608 tty->cr(); | |
609 } | |
610 } | |
611 if (ShowMessageBoxOnError && WizardMode) { | |
612 fatal("Error occurred during initialization of VM"); | |
613 } | |
614 } | |
615 | |
616 void vm_exit_during_initialization(Handle exception) { | |
617 tty->print_cr("Error occurred during initialization of VM"); | |
618 // If there are exceptions on this thread it must be cleared | |
619 // first and here. Any future calls to EXCEPTION_MARK requires | |
620 // that no pending exceptions exist. | |
621 Thread *THREAD = Thread::current(); | |
622 if (HAS_PENDING_EXCEPTION) { | |
623 CLEAR_PENDING_EXCEPTION; | |
624 } | |
625 java_lang_Throwable::print(exception, tty); | |
626 tty->cr(); | |
627 java_lang_Throwable::print_stack_trace(exception(), tty); | |
628 tty->cr(); | |
629 vm_notify_during_shutdown(NULL, NULL); | |
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630 |
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631 // Failure during initialization, we don't want to dump core |
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632 vm_abort(false); |
0 | 633 } |
634 | |
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635 void vm_exit_during_initialization(Symbol* ex, const char* message) { |
0 | 636 ResourceMark rm; |
637 vm_notify_during_shutdown(ex->as_C_string(), message); | |
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638 |
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639 // Failure during initialization, we don't want to dump core |
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640 vm_abort(false); |
0 | 641 } |
642 | |
643 void vm_exit_during_initialization(const char* error, const char* message) { | |
644 vm_notify_during_shutdown(error, message); | |
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645 |
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646 // Failure during initialization, we don't want to dump core |
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647 vm_abort(false); |
0 | 648 } |
649 | |
650 void vm_shutdown_during_initialization(const char* error, const char* message) { | |
651 vm_notify_during_shutdown(error, message); | |
652 vm_shutdown(); | |
653 } | |
654 | |
242 | 655 JDK_Version JDK_Version::_current; |
0 | 656 |
657 void JDK_Version::initialize() { | |
242 | 658 jdk_version_info info; |
659 assert(!_current.is_valid(), "Don't initialize twice"); | |
660 | |
0 | 661 void *lib_handle = os::native_java_library(); |
242 | 662 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t, |
663 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); | |
0 | 664 |
665 if (func == NULL) { | |
666 // JDK older than 1.6 | |
242 | 667 _current._partially_initialized = true; |
668 } else { | |
669 (*func)(&info, sizeof(info)); | |
0 | 670 |
242 | 671 int major = JDK_VERSION_MAJOR(info.jdk_version); |
672 int minor = JDK_VERSION_MINOR(info.jdk_version); | |
673 int micro = JDK_VERSION_MICRO(info.jdk_version); | |
674 int build = JDK_VERSION_BUILD(info.jdk_version); | |
675 if (major == 1 && minor > 4) { | |
676 // We represent "1.5.0" as "5.0", but 1.4.2 as itself. | |
677 major = minor; | |
678 minor = micro; | |
679 micro = 0; | |
680 } | |
681 _current = JDK_Version(major, minor, micro, info.update_version, | |
682 info.special_update_version, build, | |
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683 info.thread_park_blocker == 1, |
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684 info.post_vm_init_hook_enabled == 1, |
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685 info.pending_list_uses_discovered_field == 1); |
0 | 686 } |
242 | 687 } |
688 | |
689 void JDK_Version::fully_initialize( | |
690 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) { | |
691 // This is only called when current is less than 1.6 and we've gotten | |
692 // far enough in the initialization to determine the exact version. | |
693 assert(major < 6, "not needed for JDK version >= 6"); | |
694 assert(is_partially_initialized(), "must not initialize"); | |
695 if (major < 5) { | |
696 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc. | |
697 micro = minor; | |
698 minor = major; | |
699 major = 1; | |
0 | 700 } |
242 | 701 _current = JDK_Version(major, minor, micro, update); |
0 | 702 } |
703 | |
704 void JDK_Version_init() { | |
705 JDK_Version::initialize(); | |
706 } | |
242 | 707 |
708 static int64_t encode_jdk_version(const JDK_Version& v) { | |
709 return | |
710 ((int64_t)v.major_version() << (BitsPerByte * 5)) | | |
711 ((int64_t)v.minor_version() << (BitsPerByte * 4)) | | |
712 ((int64_t)v.micro_version() << (BitsPerByte * 3)) | | |
713 ((int64_t)v.update_version() << (BitsPerByte * 2)) | | |
714 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) | | |
715 ((int64_t)v.build_number() << (BitsPerByte * 0)); | |
716 } | |
717 | |
718 int JDK_Version::compare(const JDK_Version& other) const { | |
719 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)"); | |
720 if (!is_partially_initialized() && other.is_partially_initialized()) { | |
721 return -(other.compare(*this)); // flip the comparators | |
722 } | |
723 assert(!other.is_partially_initialized(), "Not initialized yet"); | |
724 if (is_partially_initialized()) { | |
725 assert(other.major_version() >= 6, | |
726 "Invalid JDK version comparison during initialization"); | |
727 return -1; | |
728 } else { | |
729 uint64_t e = encode_jdk_version(*this); | |
730 uint64_t o = encode_jdk_version(other); | |
731 return (e > o) ? 1 : ((e == o) ? 0 : -1); | |
732 } | |
733 } | |
734 | |
735 void JDK_Version::to_string(char* buffer, size_t buflen) const { | |
736 size_t index = 0; | |
737 if (!is_valid()) { | |
738 jio_snprintf(buffer, buflen, "%s", "(uninitialized)"); | |
739 } else if (is_partially_initialized()) { | |
740 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0"); | |
741 } else { | |
742 index += jio_snprintf( | |
743 &buffer[index], buflen - index, "%d.%d", _major, _minor); | |
744 if (_micro > 0) { | |
745 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro); | |
746 } | |
747 if (_update > 0) { | |
748 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update); | |
749 } | |
750 if (_special > 0) { | |
751 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special); | |
752 } | |
753 if (_build > 0) { | |
754 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build); | |
755 } | |
756 } | |
757 } |