Mercurial > hg > truffle
annotate src/share/vm/runtime/java.cpp @ 3763:e66f38dd58a9
Merge
author | ysr |
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date | Wed, 08 Jun 2011 08:39:53 -0700 |
parents | 23ae54207126 |
children | b78b4ae0757c ef2d1b8f2dd4 |
rev | line source |
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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 | |
88 #ifndef SERIALGC | |
89 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp" | |
90 #include "gc_implementation/parallelScavenge/psScavenge.hpp" | |
91 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
92 #endif | |
93 #ifdef COMPILER1 | |
94 #include "c1/c1_Compiler.hpp" | |
95 #include "c1/c1_Runtime1.hpp" | |
96 #endif | |
97 #ifdef COMPILER2 | |
98 #include "code/compiledIC.hpp" | |
99 #include "compiler/methodLiveness.hpp" | |
100 #include "opto/compile.hpp" | |
101 #include "opto/indexSet.hpp" | |
102 #include "opto/runtime.hpp" | |
103 #endif | |
0 | 104 |
105 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown); | |
106 | |
107 #ifndef PRODUCT | |
108 | |
109 // Statistics printing (method invocation histogram) | |
110 | |
111 GrowableArray<methodOop>* collected_invoked_methods; | |
112 | |
113 void collect_invoked_methods(methodOop m) { | |
114 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) { | |
115 collected_invoked_methods->push(m); | |
116 } | |
117 } | |
118 | |
119 | |
120 GrowableArray<methodOop>* collected_profiled_methods; | |
121 | |
122 void collect_profiled_methods(methodOop m) { | |
123 methodHandle mh(Thread::current(), m); | |
124 if ((m->method_data() != NULL) && | |
125 (PrintMethodData || CompilerOracle::should_print(mh))) { | |
126 collected_profiled_methods->push(m); | |
127 } | |
128 } | |
129 | |
130 | |
131 int compare_methods(methodOop* a, methodOop* b) { | |
132 // %%% there can be 32-bit overflow here | |
133 return ((*b)->invocation_count() + (*b)->compiled_invocation_count()) | |
134 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()); | |
135 } | |
136 | |
137 | |
138 void print_method_invocation_histogram() { | |
139 ResourceMark rm; | |
140 HandleMark hm; | |
141 collected_invoked_methods = new GrowableArray<methodOop>(1024); | |
142 SystemDictionary::methods_do(collect_invoked_methods); | |
143 collected_invoked_methods->sort(&compare_methods); | |
144 // | |
145 tty->cr(); | |
146 tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff); | |
147 tty->cr(); | |
148 tty->print_cr("____Count_(I+C)____Method________________________Module_________________"); | |
149 unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0, | |
150 synch_total = 0, nativ_total = 0, acces_total = 0; | |
151 for (int index = 0; index < collected_invoked_methods->length(); index++) { | |
152 methodOop m = collected_invoked_methods->at(index); | |
153 int c = m->invocation_count() + m->compiled_invocation_count(); | |
154 if (c >= MethodHistogramCutoff) m->print_invocation_count(); | |
155 int_total += m->invocation_count(); | |
156 comp_total += m->compiled_invocation_count(); | |
157 if (m->is_final()) final_total += c; | |
158 if (m->is_static()) static_total += c; | |
159 if (m->is_synchronized()) synch_total += c; | |
160 if (m->is_native()) nativ_total += c; | |
161 if (m->is_accessor()) acces_total += c; | |
162 } | |
163 tty->cr(); | |
164 total = int_total + comp_total; | |
165 tty->print_cr("Invocations summary:"); | |
166 tty->print_cr("\t%9d (%4.1f%%) interpreted", int_total, 100.0 * int_total / total); | |
167 tty->print_cr("\t%9d (%4.1f%%) compiled", comp_total, 100.0 * comp_total / total); | |
168 tty->print_cr("\t%9d (100%%) total", total); | |
169 tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total, 100.0 * synch_total / total); | |
170 tty->print_cr("\t%9d (%4.1f%%) final", final_total, 100.0 * final_total / total); | |
171 tty->print_cr("\t%9d (%4.1f%%) static", static_total, 100.0 * static_total / total); | |
172 tty->print_cr("\t%9d (%4.1f%%) native", nativ_total, 100.0 * nativ_total / total); | |
173 tty->print_cr("\t%9d (%4.1f%%) accessor", acces_total, 100.0 * acces_total / total); | |
174 tty->cr(); | |
175 SharedRuntime::print_call_statistics(comp_total); | |
176 } | |
177 | |
178 void print_method_profiling_data() { | |
179 ResourceMark rm; | |
180 HandleMark hm; | |
181 collected_profiled_methods = new GrowableArray<methodOop>(1024); | |
182 SystemDictionary::methods_do(collect_profiled_methods); | |
183 collected_profiled_methods->sort(&compare_methods); | |
184 | |
185 int count = collected_profiled_methods->length(); | |
186 if (count > 0) { | |
187 for (int index = 0; index < count; index++) { | |
188 methodOop m = collected_profiled_methods->at(index); | |
189 ttyLocker ttyl; | |
190 tty->print_cr("------------------------------------------------------------------------"); | |
191 //m->print_name(tty); | |
192 m->print_invocation_count(); | |
193 tty->cr(); | |
194 m->print_codes(); | |
195 } | |
196 tty->print_cr("------------------------------------------------------------------------"); | |
197 } | |
198 } | |
199 | |
200 void print_bytecode_count() { | |
201 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
202 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value()); | |
203 } | |
204 } | |
205 | |
206 AllocStats alloc_stats; | |
207 | |
208 | |
209 | |
210 // General statistics printing (profiling ...) | |
211 | |
212 void print_statistics() { | |
213 | |
214 #ifdef ASSERT | |
215 | |
216 if (CountRuntimeCalls) { | |
217 extern Histogram *RuntimeHistogram; | |
218 RuntimeHistogram->print(); | |
219 } | |
220 | |
221 if (CountJNICalls) { | |
222 extern Histogram *JNIHistogram; | |
223 JNIHistogram->print(); | |
224 } | |
225 | |
226 if (CountJVMCalls) { | |
227 extern Histogram *JVMHistogram; | |
228 JVMHistogram->print(); | |
229 } | |
230 | |
231 #endif | |
232 | |
233 if (MemProfiling) { | |
234 MemProfiler::disengage(); | |
235 } | |
236 | |
237 if (CITime) { | |
238 CompileBroker::print_times(); | |
239 } | |
240 | |
241 #ifdef COMPILER1 | |
242 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
243 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics); | |
244 Runtime1::print_statistics(); | |
245 Deoptimization::print_statistics(); | |
246 nmethod::print_statistics(); | |
247 } | |
248 #endif /* COMPILER1 */ | |
249 | |
250 #ifdef COMPILER2 | |
251 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) { | |
252 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics); | |
253 Compile::print_statistics(); | |
254 #ifndef COMPILER1 | |
255 Deoptimization::print_statistics(); | |
256 nmethod::print_statistics(); | |
257 #endif //COMPILER1 | |
258 SharedRuntime::print_statistics(); | |
259 os::print_statistics(); | |
260 } | |
261 | |
262 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics) { | |
263 OptoRuntime::print_named_counters(); | |
264 } | |
265 | |
266 if (TimeLivenessAnalysis) { | |
267 MethodLiveness::print_times(); | |
268 } | |
269 #ifdef ASSERT | |
270 if (CollectIndexSetStatistics) { | |
271 IndexSet::print_statistics(); | |
272 } | |
273 #endif // ASSERT | |
274 #endif // COMPILER2 | |
275 if (CountCompiledCalls) { | |
276 print_method_invocation_histogram(); | |
277 } | |
1918 | 278 if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) { |
0 | 279 print_method_profiling_data(); |
280 } | |
281 if (TimeCompiler) { | |
282 COMPILER2_PRESENT(Compile::print_timers();) | |
283 } | |
284 if (TimeCompilationPolicy) { | |
285 CompilationPolicy::policy()->print_time(); | |
286 } | |
287 if (TimeOopMap) { | |
288 GenerateOopMap::print_time(); | |
289 } | |
290 if (ProfilerCheckIntervals) { | |
291 PeriodicTask::print_intervals(); | |
292 } | |
293 if (PrintSymbolTableSizeHistogram) { | |
294 SymbolTable::print_histogram(); | |
295 } | |
296 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) { | |
297 BytecodeCounter::print(); | |
298 } | |
299 if (PrintBytecodePairHistogram) { | |
300 BytecodePairHistogram::print(); | |
301 } | |
302 | |
303 if (PrintCodeCache) { | |
304 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
305 CodeCache::print(); | |
306 } | |
307 | |
308 if (PrintCodeCache2) { | |
309 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
310 CodeCache::print_internals(); | |
311 } | |
312 | |
313 if (PrintClassStatistics) { | |
314 SystemDictionary::print_class_statistics(); | |
315 } | |
316 if (PrintMethodStatistics) { | |
317 SystemDictionary::print_method_statistics(); | |
318 } | |
319 | |
320 if (PrintVtableStats) { | |
321 klassVtable::print_statistics(); | |
322 klassItable::print_statistics(); | |
323 } | |
324 if (VerifyOops) { | |
325 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count()); | |
326 } | |
327 | |
328 print_bytecode_count(); | |
2250 | 329 if (PrintMallocStatistics) { |
0 | 330 tty->print("allocation stats: "); |
331 alloc_stats.print(); | |
332 tty->cr(); | |
333 } | |
334 | |
335 if (PrintSystemDictionaryAtExit) { | |
336 SystemDictionary::print(); | |
337 } | |
338 | |
339 if (PrintBiasedLockingStatistics) { | |
340 BiasedLocking::print_counters(); | |
341 } | |
342 | |
343 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
344 #ifdef COMPILER2 | |
345 if (ZapDeadCompiledLocals) { | |
346 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count); | |
347 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count); | |
348 } | |
349 #endif // COMPILER2 | |
350 #endif // ENABLE_ZAP_DEAD_LOCALS | |
351 } | |
352 | |
353 #else // PRODUCT MODE STATISTICS | |
354 | |
355 void print_statistics() { | |
356 | |
357 if (CITime) { | |
358 CompileBroker::print_times(); | |
359 } | |
360 #ifdef COMPILER2 | |
361 if (PrintPreciseBiasedLockingStatistics) { | |
362 OptoRuntime::print_named_counters(); | |
363 } | |
364 #endif | |
365 if (PrintBiasedLockingStatistics) { | |
366 BiasedLocking::print_counters(); | |
367 } | |
368 } | |
369 | |
370 #endif | |
371 | |
372 | |
373 // Helper class for registering on_exit calls through JVM_OnExit | |
374 | |
375 extern "C" { | |
376 typedef void (*__exit_proc)(void); | |
377 } | |
378 | |
379 class ExitProc : public CHeapObj { | |
380 private: | |
381 __exit_proc _proc; | |
382 // void (*_proc)(void); | |
383 ExitProc* _next; | |
384 public: | |
385 // ExitProc(void (*proc)(void)) { | |
386 ExitProc(__exit_proc proc) { | |
387 _proc = proc; | |
388 _next = NULL; | |
389 } | |
390 void evaluate() { _proc(); } | |
391 ExitProc* next() const { return _next; } | |
392 void set_next(ExitProc* next) { _next = next; } | |
393 }; | |
394 | |
395 | |
396 // Linked list of registered on_exit procedures | |
397 | |
398 static ExitProc* exit_procs = NULL; | |
399 | |
400 | |
401 extern "C" { | |
402 void register_on_exit_function(void (*func)(void)) { | |
403 ExitProc *entry = new ExitProc(func); | |
404 // Classic vm does not throw an exception in case the allocation failed, | |
405 if (entry != NULL) { | |
406 entry->set_next(exit_procs); | |
407 exit_procs = entry; | |
408 } | |
409 } | |
410 } | |
411 | |
412 // Note: before_exit() can be executed only once, if more than one threads | |
413 // are trying to shutdown the VM at the same time, only one thread | |
414 // can run before_exit() and all other threads must wait. | |
415 void before_exit(JavaThread * thread) { | |
416 #define BEFORE_EXIT_NOT_RUN 0 | |
417 #define BEFORE_EXIT_RUNNING 1 | |
418 #define BEFORE_EXIT_DONE 2 | |
419 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN; | |
420 | |
421 // Note: don't use a Mutex to guard the entire before_exit(), as | |
422 // JVMTI post_thread_end_event and post_vm_death_event will run native code. | |
423 // A CAS or OSMutex would work just fine but then we need to manipulate | |
424 // thread state for Safepoint. Here we use Monitor wait() and notify_all() | |
425 // for synchronization. | |
426 { MutexLocker ml(BeforeExit_lock); | |
427 switch (_before_exit_status) { | |
428 case BEFORE_EXIT_NOT_RUN: | |
429 _before_exit_status = BEFORE_EXIT_RUNNING; | |
430 break; | |
431 case BEFORE_EXIT_RUNNING: | |
432 while (_before_exit_status == BEFORE_EXIT_RUNNING) { | |
433 BeforeExit_lock->wait(); | |
434 } | |
435 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state"); | |
436 return; | |
437 case BEFORE_EXIT_DONE: | |
438 return; | |
439 } | |
440 } | |
441 | |
442 // The only difference between this and Win32's _onexit procs is that | |
443 // this version is invoked before any threads get killed. | |
444 ExitProc* current = exit_procs; | |
445 while (current != NULL) { | |
446 ExitProc* next = current->next(); | |
447 current->evaluate(); | |
448 delete current; | |
449 current = next; | |
450 } | |
451 | |
452 // Hang forever on exit if we're reporting an error. | |
453 if (ShowMessageBoxOnError && is_error_reported()) { | |
454 os::infinite_sleep(); | |
455 } | |
456 | |
457 // Terminate watcher thread - must before disenrolling any periodic task | |
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458 if (PeriodicTask::num_tasks() > 0) |
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459 WatcherThread::stop(); |
0 | 460 |
461 // Print statistics gathered (profiling ...) | |
462 if (Arguments::has_profile()) { | |
463 FlatProfiler::disengage(); | |
464 FlatProfiler::print(10); | |
465 } | |
466 | |
467 // shut down the StatSampler task | |
468 StatSampler::disengage(); | |
469 StatSampler::destroy(); | |
470 | |
471 #ifndef SERIALGC | |
472 // stop CMS threads | |
473 if (UseConcMarkSweepGC) { | |
474 ConcurrentMarkSweepThread::stop(); | |
475 } | |
476 #endif // SERIALGC | |
477 | |
478 // Print GC/heap related information. | |
479 if (PrintGCDetails) { | |
480 Universe::print(); | |
481 AdaptiveSizePolicyOutput(0); | |
482 } | |
483 | |
484 | |
485 if (Arguments::has_alloc_profile()) { | |
486 HandleMark hm; | |
487 // Do one last collection to enumerate all the objects | |
488 // allocated since the last one. | |
489 Universe::heap()->collect(GCCause::_allocation_profiler); | |
490 AllocationProfiler::disengage(); | |
491 AllocationProfiler::print(0); | |
492 } | |
493 | |
494 if (PrintBytecodeHistogram) { | |
495 BytecodeHistogram::print(); | |
496 } | |
497 | |
498 if (JvmtiExport::should_post_thread_life()) { | |
499 JvmtiExport::post_thread_end(thread); | |
500 } | |
501 // Always call even when there are not JVMTI environments yet, since environments | |
502 // may be attached late and JVMTI must track phases of VM execution | |
503 JvmtiExport::post_vm_death(); | |
504 Threads::shutdown_vm_agents(); | |
505 | |
506 // Terminate the signal thread | |
507 // Note: we don't wait until it actually dies. | |
508 os::terminate_signal_thread(); | |
509 | |
510 print_statistics(); | |
511 Universe::heap()->print_tracing_info(); | |
512 | |
513 { MutexLocker ml(BeforeExit_lock); | |
514 _before_exit_status = BEFORE_EXIT_DONE; | |
515 BeforeExit_lock->notify_all(); | |
516 } | |
517 | |
518 #undef BEFORE_EXIT_NOT_RUN | |
519 #undef BEFORE_EXIT_RUNNING | |
520 #undef BEFORE_EXIT_DONE | |
521 } | |
522 | |
523 void vm_exit(int code) { | |
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524 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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525 ThreadLocalStorage::get_thread_slow() : NULL; |
0 | 526 if (thread == NULL) { |
527 // we have serious problems -- just exit | |
528 vm_direct_exit(code); | |
529 } | |
530 | |
531 if (VMThread::vm_thread() != NULL) { | |
532 // Fire off a VM_Exit operation to bring VM to a safepoint and exit | |
533 VM_Exit op(code); | |
534 if (thread->is_Java_thread()) | |
535 ((JavaThread*)thread)->set_thread_state(_thread_in_vm); | |
536 VMThread::execute(&op); | |
537 // should never reach here; but in case something wrong with VM Thread. | |
538 vm_direct_exit(code); | |
539 } else { | |
540 // VM thread is gone, just exit | |
541 vm_direct_exit(code); | |
542 } | |
543 ShouldNotReachHere(); | |
544 } | |
545 | |
546 void notify_vm_shutdown() { | |
547 // For now, just a dtrace probe. | |
548 HS_DTRACE_PROBE(hotspot, vm__shutdown); | |
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549 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); |
0 | 550 } |
551 | |
552 void vm_direct_exit(int code) { | |
553 notify_vm_shutdown(); | |
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554 os::wait_for_keypress_at_exit(); |
0 | 555 ::exit(code); |
556 } | |
557 | |
558 void vm_perform_shutdown_actions() { | |
559 // Warning: do not call 'exit_globals()' here. All threads are still running. | |
560 // Calling 'exit_globals()' will disable thread-local-storage and cause all | |
561 // kinds of assertions to trigger in debug mode. | |
562 if (is_init_completed()) { | |
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563 Thread* thread = ThreadLocalStorage::is_initialized() ? |
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564 ThreadLocalStorage::get_thread_slow() : NULL; |
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565 if (thread != NULL && thread->is_Java_thread()) { |
0 | 566 // We are leaving the VM, set state to native (in case any OS exit |
567 // handlers call back to the VM) | |
568 JavaThread* jt = (JavaThread*)thread; | |
569 // Must always be walkable or have no last_Java_frame when in | |
570 // thread_in_native | |
571 jt->frame_anchor()->make_walkable(jt); | |
572 jt->set_thread_state(_thread_in_native); | |
573 } | |
574 } | |
575 notify_vm_shutdown(); | |
576 } | |
577 | |
578 void vm_shutdown() | |
579 { | |
580 vm_perform_shutdown_actions(); | |
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581 os::wait_for_keypress_at_exit(); |
0 | 582 os::shutdown(); |
583 } | |
584 | |
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585 void vm_abort(bool dump_core) { |
0 | 586 vm_perform_shutdown_actions(); |
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587 os::wait_for_keypress_at_exit(); |
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588 os::abort(dump_core); |
0 | 589 ShouldNotReachHere(); |
590 } | |
591 | |
592 void vm_notify_during_shutdown(const char* error, const char* message) { | |
593 if (error != NULL) { | |
594 tty->print_cr("Error occurred during initialization of VM"); | |
595 tty->print("%s", error); | |
596 if (message != NULL) { | |
597 tty->print_cr(": %s", message); | |
598 } | |
599 else { | |
600 tty->cr(); | |
601 } | |
602 } | |
603 if (ShowMessageBoxOnError && WizardMode) { | |
604 fatal("Error occurred during initialization of VM"); | |
605 } | |
606 } | |
607 | |
608 void vm_exit_during_initialization(Handle exception) { | |
609 tty->print_cr("Error occurred during initialization of VM"); | |
610 // If there are exceptions on this thread it must be cleared | |
611 // first and here. Any future calls to EXCEPTION_MARK requires | |
612 // that no pending exceptions exist. | |
613 Thread *THREAD = Thread::current(); | |
614 if (HAS_PENDING_EXCEPTION) { | |
615 CLEAR_PENDING_EXCEPTION; | |
616 } | |
617 java_lang_Throwable::print(exception, tty); | |
618 tty->cr(); | |
619 java_lang_Throwable::print_stack_trace(exception(), tty); | |
620 tty->cr(); | |
621 vm_notify_during_shutdown(NULL, NULL); | |
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622 |
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623 // Failure during initialization, we don't want to dump core |
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624 vm_abort(false); |
0 | 625 } |
626 | |
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627 void vm_exit_during_initialization(Symbol* ex, const char* message) { |
0 | 628 ResourceMark rm; |
629 vm_notify_during_shutdown(ex->as_C_string(), message); | |
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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 | |
635 void vm_exit_during_initialization(const char* error, const char* message) { | |
636 vm_notify_during_shutdown(error, message); | |
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637 |
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638 // Failure during initialization, we don't want to dump core |
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639 vm_abort(false); |
0 | 640 } |
641 | |
642 void vm_shutdown_during_initialization(const char* error, const char* message) { | |
643 vm_notify_during_shutdown(error, message); | |
644 vm_shutdown(); | |
645 } | |
646 | |
242 | 647 JDK_Version JDK_Version::_current; |
0 | 648 |
649 void JDK_Version::initialize() { | |
242 | 650 jdk_version_info info; |
651 assert(!_current.is_valid(), "Don't initialize twice"); | |
652 | |
0 | 653 void *lib_handle = os::native_java_library(); |
242 | 654 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t, |
655 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0")); | |
0 | 656 |
657 if (func == NULL) { | |
658 // JDK older than 1.6 | |
242 | 659 _current._partially_initialized = true; |
660 } else { | |
661 (*func)(&info, sizeof(info)); | |
0 | 662 |
242 | 663 int major = JDK_VERSION_MAJOR(info.jdk_version); |
664 int minor = JDK_VERSION_MINOR(info.jdk_version); | |
665 int micro = JDK_VERSION_MICRO(info.jdk_version); | |
666 int build = JDK_VERSION_BUILD(info.jdk_version); | |
667 if (major == 1 && minor > 4) { | |
668 // We represent "1.5.0" as "5.0", but 1.4.2 as itself. | |
669 major = minor; | |
670 minor = micro; | |
671 micro = 0; | |
672 } | |
673 _current = JDK_Version(major, minor, micro, info.update_version, | |
674 info.special_update_version, build, | |
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675 info.thread_park_blocker == 1, |
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676 info.post_vm_init_hook_enabled == 1); |
0 | 677 } |
242 | 678 } |
679 | |
680 void JDK_Version::fully_initialize( | |
681 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) { | |
682 // This is only called when current is less than 1.6 and we've gotten | |
683 // far enough in the initialization to determine the exact version. | |
684 assert(major < 6, "not needed for JDK version >= 6"); | |
685 assert(is_partially_initialized(), "must not initialize"); | |
686 if (major < 5) { | |
687 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc. | |
688 micro = minor; | |
689 minor = major; | |
690 major = 1; | |
0 | 691 } |
242 | 692 _current = JDK_Version(major, minor, micro, update); |
0 | 693 } |
694 | |
695 void JDK_Version_init() { | |
696 JDK_Version::initialize(); | |
697 } | |
242 | 698 |
699 static int64_t encode_jdk_version(const JDK_Version& v) { | |
700 return | |
701 ((int64_t)v.major_version() << (BitsPerByte * 5)) | | |
702 ((int64_t)v.minor_version() << (BitsPerByte * 4)) | | |
703 ((int64_t)v.micro_version() << (BitsPerByte * 3)) | | |
704 ((int64_t)v.update_version() << (BitsPerByte * 2)) | | |
705 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) | | |
706 ((int64_t)v.build_number() << (BitsPerByte * 0)); | |
707 } | |
708 | |
709 int JDK_Version::compare(const JDK_Version& other) const { | |
710 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)"); | |
711 if (!is_partially_initialized() && other.is_partially_initialized()) { | |
712 return -(other.compare(*this)); // flip the comparators | |
713 } | |
714 assert(!other.is_partially_initialized(), "Not initialized yet"); | |
715 if (is_partially_initialized()) { | |
716 assert(other.major_version() >= 6, | |
717 "Invalid JDK version comparison during initialization"); | |
718 return -1; | |
719 } else { | |
720 uint64_t e = encode_jdk_version(*this); | |
721 uint64_t o = encode_jdk_version(other); | |
722 return (e > o) ? 1 : ((e == o) ? 0 : -1); | |
723 } | |
724 } | |
725 | |
726 void JDK_Version::to_string(char* buffer, size_t buflen) const { | |
727 size_t index = 0; | |
728 if (!is_valid()) { | |
729 jio_snprintf(buffer, buflen, "%s", "(uninitialized)"); | |
730 } else if (is_partially_initialized()) { | |
731 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0"); | |
732 } else { | |
733 index += jio_snprintf( | |
734 &buffer[index], buflen - index, "%d.%d", _major, _minor); | |
735 if (_micro > 0) { | |
736 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro); | |
737 } | |
738 if (_update > 0) { | |
739 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update); | |
740 } | |
741 if (_special > 0) { | |
742 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special); | |
743 } | |
744 if (_build > 0) { | |
745 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build); | |
746 } | |
747 } | |
748 } |