Mercurial > hg > truffle
annotate src/share/vm/runtime/java.cpp @ 2174:234761c55641
6608385: G1: need to support parallel reference processing
Summary: Implement support for ParallelRefProcEnabled in the reference processing that takes place at the end of G1 concurrent marking.
Reviewed-by: tonyp, ysr
author | johnc |
---|---|
date | Tue, 25 Jan 2011 10:56:22 -0800 |
parents | 8f8dfba37802 |
children | 3582bf76420e |
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" | |
44 #include "oops/symbolOop.hpp" | |
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 | |
73 #ifdef TARGET_OS_FAMILY_linux | |
74 # include "thread_linux.inline.hpp" | |
75 #endif | |
76 #ifdef TARGET_OS_FAMILY_solaris | |
77 # include "thread_solaris.inline.hpp" | |
78 #endif | |
79 #ifdef TARGET_OS_FAMILY_windows | |
80 # include "thread_windows.inline.hpp" | |
81 #endif | |
82 #ifndef SERIALGC | |
83 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp" | |
84 #include "gc_implementation/parallelScavenge/psScavenge.hpp" | |
85 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
86 #endif | |
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 |
99 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown); | |
100 | |
101 #ifndef PRODUCT | |
102 | |
103 // Statistics printing (method invocation histogram) | |
104 | |
105 GrowableArray<methodOop>* collected_invoked_methods; | |
106 | |
107 void collect_invoked_methods(methodOop m) { | |
108 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) { | |
109 collected_invoked_methods->push(m); | |
110 } | |
111 } | |
112 | |
113 | |
114 GrowableArray<methodOop>* collected_profiled_methods; | |
115 | |
116 void collect_profiled_methods(methodOop m) { | |
117 methodHandle mh(Thread::current(), m); | |
118 if ((m->method_data() != NULL) && | |
119 (PrintMethodData || CompilerOracle::should_print(mh))) { | |
120 collected_profiled_methods->push(m); | |
121 } | |
122 } | |
123 | |
124 | |
125 int compare_methods(methodOop* a, methodOop* b) { | |
126 // %%% there can be 32-bit overflow here | |
127 return ((*b)->invocation_count() + (*b)->compiled_invocation_count()) | |
128 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()); | |
129 } | |
130 | |
131 | |
132 void print_method_invocation_histogram() { | |
133 ResourceMark rm; | |
134 HandleMark hm; | |
135 collected_invoked_methods = new GrowableArray<methodOop>(1024); | |
136 SystemDictionary::methods_do(collect_invoked_methods); | |
137 collected_invoked_methods->sort(&compare_methods); | |
138 // | |
139 tty->cr(); | |
140 tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff); | |
141 tty->cr(); | |
142 tty->print_cr("____Count_(I+C)____Method________________________Module_________________"); | |
143 unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0, | |
144 synch_total = 0, nativ_total = 0, acces_total = 0; | |
145 for (int index = 0; index < collected_invoked_methods->length(); index++) { | |
146 methodOop m = collected_invoked_methods->at(index); | |
147 int c = m->invocation_count() + m->compiled_invocation_count(); | |
148 if (c >= MethodHistogramCutoff) m->print_invocation_count(); | |
149 int_total += m->invocation_count(); | |
150 comp_total += m->compiled_invocation_count(); | |
151 if (m->is_final()) final_total += c; | |
152 if (m->is_static()) static_total += c; | |
153 if (m->is_synchronized()) synch_total += c; | |
154 if (m->is_native()) nativ_total += c; | |
155 if (m->is_accessor()) acces_total += c; | |
156 } | |
157 tty->cr(); | |
158 total = int_total + comp_total; | |
159 tty->print_cr("Invocations summary:"); | |
160 tty->print_cr("\t%9d (%4.1f%%) interpreted", int_total, 100.0 * int_total / total); | |
161 tty->print_cr("\t%9d (%4.1f%%) compiled", comp_total, 100.0 * comp_total / total); | |
162 tty->print_cr("\t%9d (100%%) total", total); | |
163 tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total, 100.0 * synch_total / total); | |
164 tty->print_cr("\t%9d (%4.1f%%) final", final_total, 100.0 * final_total / total); | |
165 tty->print_cr("\t%9d (%4.1f%%) static", static_total, 100.0 * static_total / total); | |
166 tty->print_cr("\t%9d (%4.1f%%) native", nativ_total, 100.0 * nativ_total / total); | |
167 tty->print_cr("\t%9d (%4.1f%%) accessor", acces_total, 100.0 * acces_total / total); | |
168 tty->cr(); | |
169 SharedRuntime::print_call_statistics(comp_total); | |
170 } | |
171 | |
172 void print_method_profiling_data() { | |
173 ResourceMark rm; | |
174 HandleMark hm; | |
175 collected_profiled_methods = new GrowableArray<methodOop>(1024); | |
176 SystemDictionary::methods_do(collect_profiled_methods); | |
177 collected_profiled_methods->sort(&compare_methods); | |
178 | |
179 int count = collected_profiled_methods->length(); | |
180 if (count > 0) { | |
181 for (int index = 0; index < count; index++) { | |
182 methodOop m = collected_profiled_methods->at(index); | |
183 ttyLocker ttyl; | |
184 tty->print_cr("------------------------------------------------------------------------"); | |
185 //m->print_name(tty); | |
186 m->print_invocation_count(); | |
187 tty->cr(); | |
188 m->print_codes(); | |
189 } | |
190 tty->print_cr("------------------------------------------------------------------------"); | |
191 } | |
192 } | |
193 | |
194 void print_bytecode_count() { | |
195 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
196 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value()); | |
197 } | |
198 } | |
199 | |
200 AllocStats alloc_stats; | |
201 | |
202 | |
203 | |
204 // General statistics printing (profiling ...) | |
205 | |
206 void print_statistics() { | |
207 | |
208 #ifdef ASSERT | |
209 | |
210 if (CountRuntimeCalls) { | |
211 extern Histogram *RuntimeHistogram; | |
212 RuntimeHistogram->print(); | |
213 } | |
214 | |
215 if (CountJNICalls) { | |
216 extern Histogram *JNIHistogram; | |
217 JNIHistogram->print(); | |
218 } | |
219 | |
220 if (CountJVMCalls) { | |
221 extern Histogram *JVMHistogram; | |
222 JVMHistogram->print(); | |
223 } | |
224 | |
225 #endif | |
226 | |
227 if (MemProfiling) { | |
228 MemProfiler::disengage(); | |
229 } | |
230 | |
231 if (CITime) { | |
232 CompileBroker::print_times(); | |
233 } | |
234 | |
235 #ifdef COMPILER1 | |
236 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
237 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics); | |
238 Runtime1::print_statistics(); | |
239 Deoptimization::print_statistics(); | |
240 nmethod::print_statistics(); | |
241 } | |
242 #endif /* COMPILER1 */ | |
243 | |
244 #ifdef COMPILER2 | |
245 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
246 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); | |
247 Compile::print_statistics(); | |
248 #ifndef COMPILER1 | |
249 Deoptimization::print_statistics(); | |
250 nmethod::print_statistics(); | |
251 #endif //COMPILER1 | |
252 SharedRuntime::print_statistics(); | |
253 os::print_statistics(); | |
254 } | |
255 | |
256 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics) { | |
257 OptoRuntime::print_named_counters(); | |
258 } | |
259 | |
260 if (TimeLivenessAnalysis) { | |
261 MethodLiveness::print_times(); | |
262 } | |
263 #ifdef ASSERT | |
264 if (CollectIndexSetStatistics) { | |
265 IndexSet::print_statistics(); | |
266 } | |
267 #endif // ASSERT | |
268 #endif // COMPILER2 | |
269 if (CountCompiledCalls) { | |
270 print_method_invocation_histogram(); | |
271 } | |
1918 | 272 if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) { |
0 | 273 print_method_profiling_data(); |
274 } | |
275 if (TimeCompiler) { | |
276 COMPILER2_PRESENT(Compile::print_timers();) | |
277 } | |
278 if (TimeCompilationPolicy) { | |
279 CompilationPolicy::policy()->print_time(); | |
280 } | |
281 if (TimeOopMap) { | |
282 GenerateOopMap::print_time(); | |
283 } | |
284 if (ProfilerCheckIntervals) { | |
285 PeriodicTask::print_intervals(); | |
286 } | |
287 if (PrintSymbolTableSizeHistogram) { | |
288 SymbolTable::print_histogram(); | |
289 } | |
290 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
291 BytecodeCounter::print(); | |
292 } | |
293 if (PrintBytecodePairHistogram) { | |
294 BytecodePairHistogram::print(); | |
295 } | |
296 | |
297 if (PrintCodeCache) { | |
298 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
299 CodeCache::print(); | |
300 } | |
301 | |
302 if (PrintCodeCache2) { | |
303 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
304 CodeCache::print_internals(); | |
305 } | |
306 | |
307 if (PrintClassStatistics) { | |
308 SystemDictionary::print_class_statistics(); | |
309 } | |
310 if (PrintMethodStatistics) { | |
311 SystemDictionary::print_method_statistics(); | |
312 } | |
313 | |
314 if (PrintVtableStats) { | |
315 klassVtable::print_statistics(); | |
316 klassItable::print_statistics(); | |
317 } | |
318 if (VerifyOops) { | |
319 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count()); | |
320 } | |
321 | |
322 print_bytecode_count(); | |
323 if (WizardMode) { | |
324 tty->print("allocation stats: "); | |
325 alloc_stats.print(); | |
326 tty->cr(); | |
327 } | |
328 | |
329 if (PrintSystemDictionaryAtExit) { | |
330 SystemDictionary::print(); | |
331 } | |
332 | |
333 if (PrintBiasedLockingStatistics) { | |
334 BiasedLocking::print_counters(); | |
335 } | |
336 | |
337 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
338 #ifdef COMPILER2 | |
339 if (ZapDeadCompiledLocals) { | |
340 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count); | |
341 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count); | |
342 } | |
343 #endif // COMPILER2 | |
344 #endif // ENABLE_ZAP_DEAD_LOCALS | |
345 } | |
346 | |
347 #else // PRODUCT MODE STATISTICS | |
348 | |
349 void print_statistics() { | |
350 | |
351 if (CITime) { | |
352 CompileBroker::print_times(); | |
353 } | |
354 #ifdef COMPILER2 | |
355 if (PrintPreciseBiasedLockingStatistics) { | |
356 OptoRuntime::print_named_counters(); | |
357 } | |
358 #endif | |
359 if (PrintBiasedLockingStatistics) { | |
360 BiasedLocking::print_counters(); | |
361 } | |
362 } | |
363 | |
364 #endif | |
365 | |
366 | |
367 // Helper class for registering on_exit calls through JVM_OnExit | |
368 | |
369 extern "C" { | |
370 typedef void (*__exit_proc)(void); | |
371 } | |
372 | |
373 class ExitProc : public CHeapObj { | |
374 private: | |
375 __exit_proc _proc; | |
376 // void (*_proc)(void); | |
377 ExitProc* _next; | |
378 public: | |
379 // ExitProc(void (*proc)(void)) { | |
380 ExitProc(__exit_proc proc) { | |
381 _proc = proc; | |
382 _next = NULL; | |
383 } | |
384 void evaluate() { _proc(); } | |
385 ExitProc* next() const { return _next; } | |
386 void set_next(ExitProc* next) { _next = next; } | |
387 }; | |
388 | |
389 | |
390 // Linked list of registered on_exit procedures | |
391 | |
392 static ExitProc* exit_procs = NULL; | |
393 | |
394 | |
395 extern "C" { | |
396 void register_on_exit_function(void (*func)(void)) { | |
397 ExitProc *entry = new ExitProc(func); | |
398 // Classic vm does not throw an exception in case the allocation failed, | |
399 if (entry != NULL) { | |
400 entry->set_next(exit_procs); | |
401 exit_procs = entry; | |
402 } | |
403 } | |
404 } | |
405 | |
406 // Note: before_exit() can be executed only once, if more than one threads | |
407 // are trying to shutdown the VM at the same time, only one thread | |
408 // can run before_exit() and all other threads must wait. | |
409 void before_exit(JavaThread * thread) { | |
410 #define BEFORE_EXIT_NOT_RUN 0 | |
411 #define BEFORE_EXIT_RUNNING 1 | |
412 #define BEFORE_EXIT_DONE 2 | |
413 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; | |
414 | |
415 // Note: don't use a Mutex to guard the entire before_exit(), as | |
416 // JVMTI post_thread_end_event and post_vm_death_event will run native code. | |
417 // A CAS or OSMutex would work just fine but then we need to manipulate | |
418 // thread state for Safepoint. Here we use Monitor wait() and notify_all() | |
419 // for synchronization. | |
420 { MutexLocker ml(BeforeExit_lock); | |
421 switch (_before_exit_status) { | |
422 case BEFORE_EXIT_NOT_RUN: | |
423 _before_exit_status = BEFORE_EXIT_RUNNING; | |
424 break; | |
425 case BEFORE_EXIT_RUNNING: | |
426 while (_before_exit_status == BEFORE_EXIT_RUNNING) { | |
427 BeforeExit_lock->wait(); | |
428 } | |
429 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); | |
430 return; | |
431 case BEFORE_EXIT_DONE: | |
432 return; | |
433 } | |
434 } | |
435 | |
436 // The only difference between this and Win32's _onexit procs is that | |
437 // this version is invoked before any threads get killed. | |
438 ExitProc* current = exit_procs; | |
439 while (current != NULL) { | |
440 ExitProc* next = current->next(); | |
441 current->evaluate(); | |
442 delete current; | |
443 current = next; | |
444 } | |
445 | |
446 // Hang forever on exit if we're reporting an error. | |
447 if (ShowMessageBoxOnError && is_error_reported()) { | |
448 os::infinite_sleep(); | |
449 } | |
450 | |
451 // Terminate watcher thread - must before disenrolling any periodic task | |
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452 if (PeriodicTask::num_tasks() > 0) |
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453 WatcherThread::stop(); |
0 | 454 |
455 // Print statistics gathered (profiling ...) | |
456 if (Arguments::has_profile()) { | |
457 FlatProfiler::disengage(); | |
458 FlatProfiler::print(10); | |
459 } | |
460 | |
461 // shut down the StatSampler task | |
462 StatSampler::disengage(); | |
463 StatSampler::destroy(); | |
464 | |
465 #ifndef SERIALGC | |
466 // stop CMS threads | |
467 if (UseConcMarkSweepGC) { | |
468 ConcurrentMarkSweepThread::stop(); | |
469 } | |
470 #endif // SERIALGC | |
471 | |
472 // Print GC/heap related information. | |
473 if (PrintGCDetails) { | |
474 Universe::print(); | |
475 AdaptiveSizePolicyOutput(0); | |
476 } | |
477 | |
478 | |
479 if (Arguments::has_alloc_profile()) { | |
480 HandleMark hm; | |
481 // Do one last collection to enumerate all the objects | |
482 // allocated since the last one. | |
483 Universe::heap()->collect(GCCause::_allocation_profiler); | |
484 AllocationProfiler::disengage(); | |
485 AllocationProfiler::print(0); | |
486 } | |
487 | |
488 if (PrintBytecodeHistogram) { | |
489 BytecodeHistogram::print(); | |
490 } | |
491 | |
492 if (JvmtiExport::should_post_thread_life()) { | |
493 JvmtiExport::post_thread_end(thread); | |
494 } | |
495 // Always call even when there are not JVMTI environments yet, since environments | |
496 // may be attached late and JVMTI must track phases of VM execution | |
497 JvmtiExport::post_vm_death(); | |
498 Threads::shutdown_vm_agents(); | |
499 | |
500 // Terminate the signal thread | |
501 // Note: we don't wait until it actually dies. | |
502 os::terminate_signal_thread(); | |
503 | |
504 print_statistics(); | |
505 Universe::heap()->print_tracing_info(); | |
506 | |
507 { MutexLocker ml(BeforeExit_lock); | |
508 _before_exit_status = BEFORE_EXIT_DONE; | |
509 BeforeExit_lock->notify_all(); | |
510 } | |
511 | |
512 #undef BEFORE_EXIT_NOT_RUN | |
513 #undef BEFORE_EXIT_RUNNING | |
514 #undef BEFORE_EXIT_DONE | |
515 } | |
516 | |
517 void vm_exit(int code) { | |
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518 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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519 ThreadLocalStorage::get_thread_slow() : NULL; |
0 | 520 if (thread == NULL) { |
521 // we have serious problems -- just exit | |
522 vm_direct_exit(code); | |
523 } | |
524 | |
525 if (VMThread::vm_thread() != NULL) { | |
526 // Fire off a VM_Exit operation to bring VM to a safepoint and exit | |
527 VM_Exit op(code); | |
528 if (thread->is_Java_thread()) | |
529 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); | |
530 VMThread::execute(&op); | |
531 // should never reach here; but in case something wrong with VM Thread. | |
532 vm_direct_exit(code); | |
533 } else { | |
534 // VM thread is gone, just exit | |
535 vm_direct_exit(code); | |
536 } | |
537 ShouldNotReachHere(); | |
538 } | |
539 | |
540 void notify_vm_shutdown() { | |
541 // For now, just a dtrace probe. | |
542 HS_DTRACE_PROBE(hotspot, vm__shutdown); | |
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543 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); |
0 | 544 } |
545 | |
546 void vm_direct_exit(int code) { | |
547 notify_vm_shutdown(); | |
548 ::exit(code); | |
549 } | |
550 | |
551 void vm_perform_shutdown_actions() { | |
552 // Warning: do not call 'exit_globals()' here. All threads are still running. | |
553 // Calling 'exit_globals()' will disable thread-local-storage and cause all | |
554 // kinds of assertions to trigger in debug mode. | |
555 if (is_init_completed()) { | |
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556 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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557 ThreadLocalStorage::get_thread_slow() : NULL; |
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558 if (thread != NULL && thread->is_Java_thread()) { |
0 | 559 // We are leaving the VM, set state to native (in case any OS exit |
560 // handlers call back to the VM) | |
561 JavaThread* jt = (JavaThread*)thread; | |
562 // Must always be walkable or have no last_Java_frame when in | |
563 // thread_in_native | |
564 jt->frame_anchor()->make_walkable(jt); | |
565 jt->set_thread_state(_thread_in_native); | |
566 } | |
567 } | |
568 notify_vm_shutdown(); | |
569 } | |
570 | |
571 void vm_shutdown() | |
572 { | |
573 vm_perform_shutdown_actions(); | |
574 os::shutdown(); | |
575 } | |
576 | |
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577 void vm_abort(bool dump_core) { |
0 | 578 vm_perform_shutdown_actions(); |
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579 os::abort(dump_core); |
0 | 580 ShouldNotReachHere(); |
581 } | |
582 | |
583 void vm_notify_during_shutdown(const char* error, const char* message) { | |
584 if (error != NULL) { | |
585 tty->print_cr("Error occurred during initialization of VM"); | |
586 tty->print("%s", error); | |
587 if (message != NULL) { | |
588 tty->print_cr(": %s", message); | |
589 } | |
590 else { | |
591 tty->cr(); | |
592 } | |
593 } | |
594 if (ShowMessageBoxOnError && WizardMode) { | |
595 fatal("Error occurred during initialization of VM"); | |
596 } | |
597 } | |
598 | |
599 void vm_exit_during_initialization(Handle exception) { | |
600 tty->print_cr("Error occurred during initialization of VM"); | |
601 // If there are exceptions on this thread it must be cleared | |
602 // first and here. Any future calls to EXCEPTION_MARK requires | |
603 // that no pending exceptions exist. | |
604 Thread *THREAD = Thread::current(); | |
605 if (HAS_PENDING_EXCEPTION) { | |
606 CLEAR_PENDING_EXCEPTION; | |
607 } | |
608 java_lang_Throwable::print(exception, tty); | |
609 tty->cr(); | |
610 java_lang_Throwable::print_stack_trace(exception(), tty); | |
611 tty->cr(); | |
612 vm_notify_during_shutdown(NULL, NULL); | |
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613 |
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614 // Failure during initialization, we don't want to dump core |
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615 vm_abort(false); |
0 | 616 } |
617 | |
618 void vm_exit_during_initialization(symbolHandle ex, const char* message) { | |
619 ResourceMark rm; | |
620 vm_notify_during_shutdown(ex->as_C_string(), message); | |
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621 |
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622 // Failure during initialization, we don't want to dump core |
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623 vm_abort(false); |
0 | 624 } |
625 | |
626 void vm_exit_during_initialization(const char* error, const char* message) { | |
627 vm_notify_during_shutdown(error, message); | |
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628 |
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629 // Failure during initialization, we don't want to dump core |
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630 vm_abort(false); |
0 | 631 } |
632 | |
633 void vm_shutdown_during_initialization(const char* error, const char* message) { | |
634 vm_notify_during_shutdown(error, message); | |
635 vm_shutdown(); | |
636 } | |
637 | |
242 | 638 JDK_Version JDK_Version::_current; |
0 | 639 |
640 void JDK_Version::initialize() { | |
242 | 641 jdk_version_info info; |
642 assert(!_current.is_valid(), "Don't initialize twice"); | |
643 | |
0 | 644 void *lib_handle = os::native_java_library(); |
242 | 645 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t, |
646 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); | |
0 | 647 |
648 if (func == NULL) { | |
649 // JDK older than 1.6 | |
242 | 650 _current._partially_initialized = true; |
651 } else { | |
652 (*func)(&info, sizeof(info)); | |
0 | 653 |
242 | 654 int major = JDK_VERSION_MAJOR(info.jdk_version); |
655 int minor = JDK_VERSION_MINOR(info.jdk_version); | |
656 int micro = JDK_VERSION_MICRO(info.jdk_version); | |
657 int build = JDK_VERSION_BUILD(info.jdk_version); | |
658 if (major == 1 && minor > 4) { | |
659 // We represent "1.5.0" as "5.0", but 1.4.2 as itself. | |
660 major = minor; | |
661 minor = micro; | |
662 micro = 0; | |
663 } | |
664 _current = JDK_Version(major, minor, micro, info.update_version, | |
665 info.special_update_version, build, | |
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666 info.thread_park_blocker == 1, |
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667 info.post_vm_init_hook_enabled == 1); |
0 | 668 } |
242 | 669 } |
670 | |
671 void JDK_Version::fully_initialize( | |
672 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) { | |
673 // This is only called when current is less than 1.6 and we've gotten | |
674 // far enough in the initialization to determine the exact version. | |
675 assert(major < 6, "not needed for JDK version >= 6"); | |
676 assert(is_partially_initialized(), "must not initialize"); | |
677 if (major < 5) { | |
678 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc. | |
679 micro = minor; | |
680 minor = major; | |
681 major = 1; | |
0 | 682 } |
242 | 683 _current = JDK_Version(major, minor, micro, update); |
0 | 684 } |
685 | |
686 void JDK_Version_init() { | |
687 JDK_Version::initialize(); | |
688 } | |
242 | 689 |
690 static int64_t encode_jdk_version(const JDK_Version& v) { | |
691 return | |
692 ((int64_t)v.major_version() << (BitsPerByte * 5)) | | |
693 ((int64_t)v.minor_version() << (BitsPerByte * 4)) | | |
694 ((int64_t)v.micro_version() << (BitsPerByte * 3)) | | |
695 ((int64_t)v.update_version() << (BitsPerByte * 2)) | | |
696 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) | | |
697 ((int64_t)v.build_number() << (BitsPerByte * 0)); | |
698 } | |
699 | |
700 int JDK_Version::compare(const JDK_Version& other) const { | |
701 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)"); | |
702 if (!is_partially_initialized() && other.is_partially_initialized()) { | |
703 return -(other.compare(*this)); // flip the comparators | |
704 } | |
705 assert(!other.is_partially_initialized(), "Not initialized yet"); | |
706 if (is_partially_initialized()) { | |
707 assert(other.major_version() >= 6, | |
708 "Invalid JDK version comparison during initialization"); | |
709 return -1; | |
710 } else { | |
711 uint64_t e = encode_jdk_version(*this); | |
712 uint64_t o = encode_jdk_version(other); | |
713 return (e > o) ? 1 : ((e == o) ? 0 : -1); | |
714 } | |
715 } | |
716 | |
717 void JDK_Version::to_string(char* buffer, size_t buflen) const { | |
718 size_t index = 0; | |
719 if (!is_valid()) { | |
720 jio_snprintf(buffer, buflen, "%s", "(uninitialized)"); | |
721 } else if (is_partially_initialized()) { | |
722 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0"); | |
723 } else { | |
724 index += jio_snprintf( | |
725 &buffer[index], buflen - index, "%d.%d", _major, _minor); | |
726 if (_micro > 0) { | |
727 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro); | |
728 } | |
729 if (_update > 0) { | |
730 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update); | |
731 } | |
732 if (_special > 0) { | |
733 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special); | |
734 } | |
735 if (_build > 0) { | |
736 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build); | |
737 } | |
738 } | |
739 } |