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--- old/src/share/vm/runtime/java.cpp
+++ new/src/share/vm/runtime/java.cpp
1 1 /*
2 2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
3 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 4 *
5 5 * This code is free software; you can redistribute it and/or modify it
6 6 * under the terms of the GNU General Public License version 2 only, as
7 7 * published by the Free Software Foundation.
8 8 *
9 9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 12 * version 2 for more details (a copy is included in the LICENSE file that
13 13 * accompanied this code).
14 14 *
15 15 * You should have received a copy of the GNU General Public License version
16 16 * 2 along with this work; if not, write to the Free Software Foundation,
17 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 18 *
19 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 20 * or visit www.oracle.com if you need additional information or have any
21 21 * questions.
22 22 *
23 23 */
24 24
25 25 #include "precompiled.hpp"
26 26 #include "classfile/classLoader.hpp"
27 27 #include "classfile/symbolTable.hpp"
28 28 #include "classfile/systemDictionary.hpp"
29 29 #include "code/codeCache.hpp"
30 30 #include "compiler/compileBroker.hpp"
31 31 #include "compiler/compilerOracle.hpp"
32 32 #include "interpreter/bytecodeHistogram.hpp"
33 33 #include "memory/genCollectedHeap.hpp"
34 34 #include "memory/oopFactory.hpp"
35 35 #include "memory/universe.hpp"
36 36 #include "oops/constantPoolOop.hpp"
37 37 #include "oops/generateOopMap.hpp"
38 38 #include "oops/instanceKlass.hpp"
39 39 #include "oops/instanceKlassKlass.hpp"
40 40 #include "oops/instanceOop.hpp"
41 41 #include "oops/methodOop.hpp"
42 42 #include "oops/objArrayOop.hpp"
43 43 #include "oops/oop.inline.hpp"
44 44 #include "oops/symbol.hpp"
45 45 #include "prims/jvmtiExport.hpp"
46 46 #include "runtime/aprofiler.hpp"
47 47 #include "runtime/arguments.hpp"
48 48 #include "runtime/biasedLocking.hpp"
49 49 #include "runtime/compilationPolicy.hpp"
50 50 #include "runtime/fprofiler.hpp"
51 51 #include "runtime/init.hpp"
52 52 #include "runtime/interfaceSupport.hpp"
53 53 #include "runtime/java.hpp"
54 54 #include "runtime/memprofiler.hpp"
55 55 #include "runtime/sharedRuntime.hpp"
56 56 #include "runtime/statSampler.hpp"
57 57 #include "runtime/task.hpp"
58 58 #include "runtime/timer.hpp"
59 59 #include "runtime/vm_operations.hpp"
60 60 #include "trace/tracing.hpp"
61 61 #include "trace/traceEventTypes.hpp"
62 62 #include "utilities/dtrace.hpp"
63 63 #include "utilities/globalDefinitions.hpp"
64 64 #include "utilities/histogram.hpp"
65 65 #include "utilities/vmError.hpp"
66 66 #ifdef TARGET_ARCH_x86
67 67 # include "vm_version_x86.hpp"
68 68 #endif
69 69 #ifdef TARGET_ARCH_sparc
70 70 # include "vm_version_sparc.hpp"
71 71 #endif
72 72 #ifdef TARGET_ARCH_zero
73 73 # include "vm_version_zero.hpp"
74 74 #endif
75 75 #ifdef TARGET_ARCH_arm
76 76 # include "vm_version_arm.hpp"
77 77 #endif
78 78 #ifdef TARGET_ARCH_ppc
79 79 # include "vm_version_ppc.hpp"
80 80 #endif
81 81 #ifdef TARGET_OS_FAMILY_linux
82 82 # include "thread_linux.inline.hpp"
83 83 #endif
84 84 #ifdef TARGET_OS_FAMILY_solaris
85 85 # include "thread_solaris.inline.hpp"
86 86 #endif
87 87 #ifdef TARGET_OS_FAMILY_windows
88 88 # include "thread_windows.inline.hpp"
89 89 #endif
90 90 #ifdef TARGET_OS_FAMILY_bsd
91 91 # include "thread_bsd.inline.hpp"
92 92 #endif
93 93 #ifndef SERIALGC
94 94 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp"
95 95 #include "gc_implementation/parallelScavenge/psScavenge.hpp"
96 96 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
97 97 #endif
98 98 #ifdef COMPILER1
99 99 #include "c1/c1_Compiler.hpp"
100 100 #include "c1/c1_Runtime1.hpp"
101 101 #endif
102 102 #ifdef COMPILER2
103 103 #include "code/compiledIC.hpp"
104 104 #include "compiler/methodLiveness.hpp"
105 105 #include "opto/compile.hpp"
106 106 #include "opto/indexSet.hpp"
107 107 #include "opto/runtime.hpp"
108 108 #endif
109 109
110 110 #ifndef USDT2
111 111 HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown);
112 112 #endif /* !USDT2 */
113 113
114 114 #ifndef PRODUCT
115 115
116 116 // Statistics printing (method invocation histogram)
117 117
118 118 GrowableArray<methodOop>* collected_invoked_methods;
119 119
120 120 void collect_invoked_methods(methodOop m) {
121 121 if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) {
122 122 collected_invoked_methods->push(m);
123 123 }
124 124 }
125 125
126 126
127 127 GrowableArray<methodOop>* collected_profiled_methods;
128 128
129 129 void collect_profiled_methods(methodOop m) {
130 130 methodHandle mh(Thread::current(), m);
131 131 if ((m->method_data() != NULL) &&
132 132 (PrintMethodData || CompilerOracle::should_print(mh))) {
133 133 collected_profiled_methods->push(m);
134 134 }
135 135 }
136 136
137 137
138 138 int compare_methods(methodOop* a, methodOop* b) {
139 139 // %%% there can be 32-bit overflow here
140 140 return ((*b)->invocation_count() + (*b)->compiled_invocation_count())
141 141 - ((*a)->invocation_count() + (*a)->compiled_invocation_count());
142 142 }
143 143
144 144
145 145 void print_method_invocation_histogram() {
146 146 ResourceMark rm;
147 147 HandleMark hm;
148 148 collected_invoked_methods = new GrowableArray<methodOop>(1024);
149 149 SystemDictionary::methods_do(collect_invoked_methods);
150 150 collected_invoked_methods->sort(&compare_methods);
151 151 //
152 152 tty->cr();
153 153 tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff);
154 154 tty->cr();
155 155 tty->print_cr("____Count_(I+C)____Method________________________Module_________________");
156 156 unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0,
157 157 synch_total = 0, nativ_total = 0, acces_total = 0;
158 158 for (int index = 0; index < collected_invoked_methods->length(); index++) {
159 159 methodOop m = collected_invoked_methods->at(index);
160 160 int c = m->invocation_count() + m->compiled_invocation_count();
161 161 if (c >= MethodHistogramCutoff) m->print_invocation_count();
162 162 int_total += m->invocation_count();
163 163 comp_total += m->compiled_invocation_count();
164 164 if (m->is_final()) final_total += c;
165 165 if (m->is_static()) static_total += c;
166 166 if (m->is_synchronized()) synch_total += c;
167 167 if (m->is_native()) nativ_total += c;
168 168 if (m->is_accessor()) acces_total += c;
169 169 }
170 170 tty->cr();
171 171 total = int_total + comp_total;
172 172 tty->print_cr("Invocations summary:");
173 173 tty->print_cr("\t%9d (%4.1f%%) interpreted", int_total, 100.0 * int_total / total);
174 174 tty->print_cr("\t%9d (%4.1f%%) compiled", comp_total, 100.0 * comp_total / total);
175 175 tty->print_cr("\t%9d (100%%) total", total);
176 176 tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total, 100.0 * synch_total / total);
177 177 tty->print_cr("\t%9d (%4.1f%%) final", final_total, 100.0 * final_total / total);
178 178 tty->print_cr("\t%9d (%4.1f%%) static", static_total, 100.0 * static_total / total);
179 179 tty->print_cr("\t%9d (%4.1f%%) native", nativ_total, 100.0 * nativ_total / total);
180 180 tty->print_cr("\t%9d (%4.1f%%) accessor", acces_total, 100.0 * acces_total / total);
181 181 tty->cr();
182 182 SharedRuntime::print_call_statistics(comp_total);
183 183 }
184 184
185 185 void print_method_profiling_data() {
186 186 ResourceMark rm;
187 187 HandleMark hm;
188 188 collected_profiled_methods = new GrowableArray<methodOop>(1024);
189 189 SystemDictionary::methods_do(collect_profiled_methods);
190 190 collected_profiled_methods->sort(&compare_methods);
191 191
192 192 int count = collected_profiled_methods->length();
193 193 if (count > 0) {
194 194 for (int index = 0; index < count; index++) {
195 195 methodOop m = collected_profiled_methods->at(index);
196 196 ttyLocker ttyl;
197 197 tty->print_cr("------------------------------------------------------------------------");
198 198 //m->print_name(tty);
199 199 m->print_invocation_count();
200 200 tty->cr();
201 201 m->print_codes();
202 202 }
203 203 tty->print_cr("------------------------------------------------------------------------");
204 204 }
205 205 }
206 206
207 207 void print_bytecode_count() {
208 208 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
209 209 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value());
210 210 }
211 211 }
212 212
213 213 AllocStats alloc_stats;
214 214
215 215
216 216
217 217 // General statistics printing (profiling ...)
218 218
219 219 void print_statistics() {
220 220
221 221 #ifdef ASSERT
222 222
223 223 if (CountRuntimeCalls) {
224 224 extern Histogram *RuntimeHistogram;
225 225 RuntimeHistogram->print();
226 226 }
227 227
228 228 if (CountJNICalls) {
229 229 extern Histogram *JNIHistogram;
230 230 JNIHistogram->print();
231 231 }
232 232
233 233 if (CountJVMCalls) {
234 234 extern Histogram *JVMHistogram;
235 235 JVMHistogram->print();
236 236 }
237 237
238 238 #endif
239 239
240 240 if (MemProfiling) {
241 241 MemProfiler::disengage();
242 242 }
243 243
244 244 if (CITime) {
245 245 CompileBroker::print_times();
246 246 }
247 247
248 248 #ifdef COMPILER1
249 249 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) {
250 250 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics);
251 251 Runtime1::print_statistics();
252 252 Deoptimization::print_statistics();
253 253 SharedRuntime::print_statistics();
254 254 nmethod::print_statistics();
255 255 }
256 256 #endif /* COMPILER1 */
257 257
258 258 #ifdef COMPILER2
259 259 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) {
260 260 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics);
261 261 Compile::print_statistics();
262 262 #ifndef COMPILER1
263 263 Deoptimization::print_statistics();
264 264 nmethod::print_statistics();
265 265 SharedRuntime::print_statistics();
266 266 #endif //COMPILER1
267 267 os::print_statistics();
268 268 }
269 269
270 270 if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics) {
271 271 OptoRuntime::print_named_counters();
272 272 }
273 273
274 274 if (TimeLivenessAnalysis) {
275 275 MethodLiveness::print_times();
276 276 }
277 277 #ifdef ASSERT
278 278 if (CollectIndexSetStatistics) {
279 279 IndexSet::print_statistics();
280 280 }
281 281 #endif // ASSERT
282 282 #endif // COMPILER2
283 283 if (CountCompiledCalls) {
284 284 print_method_invocation_histogram();
285 285 }
286 286 if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) {
287 287 print_method_profiling_data();
288 288 }
289 289 if (TimeCompiler) {
290 290 COMPILER2_PRESENT(Compile::print_timers();)
291 291 }
292 292 if (TimeCompilationPolicy) {
293 293 CompilationPolicy::policy()->print_time();
294 294 }
295 295 if (TimeOopMap) {
296 296 GenerateOopMap::print_time();
297 297 }
298 298 if (ProfilerCheckIntervals) {
299 299 PeriodicTask::print_intervals();
300 300 }
301 301 if (PrintSymbolTableSizeHistogram) {
302 302 SymbolTable::print_histogram();
303 303 }
304 304 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
305 305 BytecodeCounter::print();
306 306 }
307 307 if (PrintBytecodePairHistogram) {
308 308 BytecodePairHistogram::print();
309 309 }
310 310
311 311 if (PrintCodeCache) {
312 312 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
313 313 CodeCache::print();
314 314 }
315 315
316 316 if (PrintCodeCache2) {
317 317 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
318 318 CodeCache::print_internals();
319 319 }
320 320
321 321 if (PrintClassStatistics) {
322 322 SystemDictionary::print_class_statistics();
323 323 }
324 324 if (PrintMethodStatistics) {
325 325 SystemDictionary::print_method_statistics();
326 326 }
327 327
328 328 if (PrintVtableStats) {
329 329 klassVtable::print_statistics();
330 330 klassItable::print_statistics();
331 331 }
332 332 if (VerifyOops) {
333 333 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count());
334 334 }
335 335
336 336 print_bytecode_count();
337 337 if (PrintMallocStatistics) {
338 338 tty->print("allocation stats: ");
339 339 alloc_stats.print();
340 340 tty->cr();
341 341 }
342 342
343 343 if (PrintSystemDictionaryAtExit) {
344 344 SystemDictionary::print();
345 345 }
346 346
347 347 if (PrintBiasedLockingStatistics) {
348 348 BiasedLocking::print_counters();
349 349 }
350 350
351 351 #ifdef ENABLE_ZAP_DEAD_LOCALS
352 352 #ifdef COMPILER2
353 353 if (ZapDeadCompiledLocals) {
354 354 tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count);
355 355 tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count);
356 356 }
357 357 #endif // COMPILER2
358 358 #endif // ENABLE_ZAP_DEAD_LOCALS
359 359 }
360 360
361 361 #else // PRODUCT MODE STATISTICS
362 362
363 363 void print_statistics() {
364 364
365 365 if (CITime) {
366 366 CompileBroker::print_times();
367 367 }
368 368 #ifdef COMPILER2
369 369 if (PrintPreciseBiasedLockingStatistics) {
370 370 OptoRuntime::print_named_counters();
371 371 }
372 372 #endif
373 373 if (PrintBiasedLockingStatistics) {
374 374 BiasedLocking::print_counters();
375 375 }
376 376 }
377 377
378 378 #endif
379 379
380 380
381 381 // Helper class for registering on_exit calls through JVM_OnExit
382 382
383 383 extern "C" {
384 384 typedef void (*__exit_proc)(void);
385 385 }
386 386
387 387 class ExitProc : public CHeapObj {
388 388 private:
389 389 __exit_proc _proc;
390 390 // void (*_proc)(void);
391 391 ExitProc* _next;
392 392 public:
393 393 // ExitProc(void (*proc)(void)) {
394 394 ExitProc(__exit_proc proc) {
395 395 _proc = proc;
396 396 _next = NULL;
397 397 }
398 398 void evaluate() { _proc(); }
399 399 ExitProc* next() const { return _next; }
400 400 void set_next(ExitProc* next) { _next = next; }
401 401 };
402 402
403 403
404 404 // Linked list of registered on_exit procedures
405 405
406 406 static ExitProc* exit_procs = NULL;
407 407
408 408
409 409 extern "C" {
410 410 void register_on_exit_function(void (*func)(void)) {
411 411 ExitProc *entry = new ExitProc(func);
412 412 // Classic vm does not throw an exception in case the allocation failed,
413 413 if (entry != NULL) {
414 414 entry->set_next(exit_procs);
415 415 exit_procs = entry;
416 416 }
417 417 }
418 418 }
419 419
420 420 // Note: before_exit() can be executed only once, if more than one threads
421 421 // are trying to shutdown the VM at the same time, only one thread
422 422 // can run before_exit() and all other threads must wait.
423 423 void before_exit(JavaThread * thread) {
424 424 #define BEFORE_EXIT_NOT_RUN 0
425 425 #define BEFORE_EXIT_RUNNING 1
426 426 #define BEFORE_EXIT_DONE 2
427 427 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN;
428 428
429 429 // Note: don't use a Mutex to guard the entire before_exit(), as
430 430 // JVMTI post_thread_end_event and post_vm_death_event will run native code.
431 431 // A CAS or OSMutex would work just fine but then we need to manipulate
432 432 // thread state for Safepoint. Here we use Monitor wait() and notify_all()
433 433 // for synchronization.
434 434 { MutexLocker ml(BeforeExit_lock);
435 435 switch (_before_exit_status) {
436 436 case BEFORE_EXIT_NOT_RUN:
437 437 _before_exit_status = BEFORE_EXIT_RUNNING;
438 438 break;
439 439 case BEFORE_EXIT_RUNNING:
440 440 while (_before_exit_status == BEFORE_EXIT_RUNNING) {
441 441 BeforeExit_lock->wait();
442 442 }
443 443 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state");
444 444 return;
445 445 case BEFORE_EXIT_DONE:
446 446 return;
447 447 }
448 448 }
449 449
450 450 // The only difference between this and Win32's _onexit procs is that
451 451 // this version is invoked before any threads get killed.
452 452 ExitProc* current = exit_procs;
453 453 while (current != NULL) {
454 454 ExitProc* next = current->next();
455 455 current->evaluate();
456 456 delete current;
457 457 current = next;
458 458 }
459 459
460 460 // Hang forever on exit if we're reporting an error.
461 461 if (ShowMessageBoxOnError && is_error_reported()) {
462 462 os::infinite_sleep();
463 463 }
464 464
465 465 // Terminate watcher thread - must before disenrolling any periodic task
466 466 if (PeriodicTask::num_tasks() > 0)
467 467 WatcherThread::stop();
468 468
469 469 // Print statistics gathered (profiling ...)
470 470 if (Arguments::has_profile()) {
471 471 FlatProfiler::disengage();
472 472 FlatProfiler::print(10);
473 473 }
474 474
475 475 // shut down the StatSampler task
476 476 StatSampler::disengage();
477 477 StatSampler::destroy();
478 478
479 479 // We do not need to explicitly stop concurrent GC threads because the
480 480 // JVM will be taken down at a safepoint when such threads are inactive --
481 481 // except for some concurrent G1 threads, see (comment in)
482 482 // Threads::destroy_vm().
483 483
484 484 // Print GC/heap related information.
485 485 if (PrintGCDetails) {
486 486 Universe::print();
487 487 AdaptiveSizePolicyOutput(0);
488 488 }
489 489
490 490
491 491 if (Arguments::has_alloc_profile()) {
492 492 HandleMark hm;
493 493 // Do one last collection to enumerate all the objects
494 494 // allocated since the last one.
495 495 Universe::heap()->collect(GCCause::_allocation_profiler);
496 496 AllocationProfiler::disengage();
497 497 AllocationProfiler::print(0);
498 498 }
499 499
500 500 if (PrintBytecodeHistogram) {
501 501 BytecodeHistogram::print();
502 502 }
503 503
504 504 if (JvmtiExport::should_post_thread_life()) {
505 505 JvmtiExport::post_thread_end(thread);
506 506 }
507 507
508 508 EVENT_BEGIN(TraceEventThreadEnd, event);
509 509 EVENT_COMMIT(event,
510 510 EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj())));
511 511
512 512 // Always call even when there are not JVMTI environments yet, since environments
513 513 // may be attached late and JVMTI must track phases of VM execution
514 514 JvmtiExport::post_vm_death();
515 515 Threads::shutdown_vm_agents();
516 516
517 517 // Terminate the signal thread
518 518 // Note: we don't wait until it actually dies.
519 519 os::terminate_signal_thread();
520 520
521 521 print_statistics();
522 522 Universe::heap()->print_tracing_info();
523 523
524 524 { MutexLocker ml(BeforeExit_lock);
525 525 _before_exit_status = BEFORE_EXIT_DONE;
526 526 BeforeExit_lock->notify_all();
527 527 }
528 528
529 529 #undef BEFORE_EXIT_NOT_RUN
530 530 #undef BEFORE_EXIT_RUNNING
531 531 #undef BEFORE_EXIT_DONE
532 532 }
533 533
534 534 void vm_exit(int code) {
535 535 Thread* thread = ThreadLocalStorage::is_initialized() ?
536 536 ThreadLocalStorage::get_thread_slow() : NULL;
537 537 if (thread == NULL) {
538 538 // we have serious problems -- just exit
539 539 vm_direct_exit(code);
540 540 }
541 541
542 542 if (VMThread::vm_thread() != NULL) {
543 543 // Fire off a VM_Exit operation to bring VM to a safepoint and exit
544 544 VM_Exit op(code);
545 545 if (thread->is_Java_thread())
546 546 ((JavaThread*)thread)->set_thread_state(_thread_in_vm);
547 547 VMThread::execute(&op);
548 548 // should never reach here; but in case something wrong with VM Thread.
549 549 vm_direct_exit(code);
550 550 } else {
551 551 // VM thread is gone, just exit
552 552 vm_direct_exit(code);
553 553 }
554 554 ShouldNotReachHere();
555 555 }
556 556
557 557 void notify_vm_shutdown() {
558 558 // For now, just a dtrace probe.
559 559 #ifndef USDT2
560 560 HS_DTRACE_PROBE(hotspot, vm__shutdown);
561 561 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG();
562 562 #else /* USDT2 */
563 563 HOTSPOT_VM_SHUTDOWN();
564 564 #endif /* USDT2 */
565 565 }
566 566
567 567 void vm_direct_exit(int code) {
568 568 notify_vm_shutdown();
569 569 os::wait_for_keypress_at_exit();
570 570 ::exit(code);
571 571 }
572 572
573 573 void vm_perform_shutdown_actions() {
574 574 // Warning: do not call 'exit_globals()' here. All threads are still running.
575 575 // Calling 'exit_globals()' will disable thread-local-storage and cause all
576 576 // kinds of assertions to trigger in debug mode.
577 577 if (is_init_completed()) {
578 578 Thread* thread = ThreadLocalStorage::is_initialized() ?
579 579 ThreadLocalStorage::get_thread_slow() : NULL;
580 580 if (thread != NULL && thread->is_Java_thread()) {
581 581 // We are leaving the VM, set state to native (in case any OS exit
582 582 // handlers call back to the VM)
583 583 JavaThread* jt = (JavaThread*)thread;
584 584 // Must always be walkable or have no last_Java_frame when in
585 585 // thread_in_native
586 586 jt->frame_anchor()->make_walkable(jt);
587 587 jt->set_thread_state(_thread_in_native);
588 588 }
589 589 }
590 590 notify_vm_shutdown();
591 591 }
592 592
593 593 void vm_shutdown()
594 594 {
595 595 vm_perform_shutdown_actions();
596 596 os::wait_for_keypress_at_exit();
597 597 os::shutdown();
598 598 }
599 599
600 600 void vm_abort(bool dump_core) {
601 601 vm_perform_shutdown_actions();
602 602 os::wait_for_keypress_at_exit();
603 603 os::abort(dump_core);
604 604 ShouldNotReachHere();
605 605 }
606 606
607 607 void vm_notify_during_shutdown(const char* error, const char* message) {
608 608 if (error != NULL) {
609 609 tty->print_cr("Error occurred during initialization of VM");
610 610 tty->print("%s", error);
611 611 if (message != NULL) {
612 612 tty->print_cr(": %s", message);
613 613 }
614 614 else {
615 615 tty->cr();
616 616 }
617 617 }
618 618 if (ShowMessageBoxOnError && WizardMode) {
619 619 fatal("Error occurred during initialization of VM");
620 620 }
621 621 }
622 622
623 623 void vm_exit_during_initialization(Handle exception) {
624 624 tty->print_cr("Error occurred during initialization of VM");
625 625 // If there are exceptions on this thread it must be cleared
626 626 // first and here. Any future calls to EXCEPTION_MARK requires
627 627 // that no pending exceptions exist.
628 628 Thread *THREAD = Thread::current();
629 629 if (HAS_PENDING_EXCEPTION) {
630 630 CLEAR_PENDING_EXCEPTION;
631 631 }
632 632 java_lang_Throwable::print(exception, tty);
633 633 tty->cr();
634 634 java_lang_Throwable::print_stack_trace(exception(), tty);
635 635 tty->cr();
636 636 vm_notify_during_shutdown(NULL, NULL);
637 637
638 638 // Failure during initialization, we don't want to dump core
639 639 vm_abort(false);
640 640 }
641 641
642 642 void vm_exit_during_initialization(Symbol* ex, const char* message) {
643 643 ResourceMark rm;
644 644 vm_notify_during_shutdown(ex->as_C_string(), message);
645 645
646 646 // Failure during initialization, we don't want to dump core
647 647 vm_abort(false);
648 648 }
649 649
650 650 void vm_exit_during_initialization(const char* error, const char* message) {
651 651 vm_notify_during_shutdown(error, message);
652 652
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653 653 // Failure during initialization, we don't want to dump core
654 654 vm_abort(false);
655 655 }
656 656
657 657 void vm_shutdown_during_initialization(const char* error, const char* message) {
658 658 vm_notify_during_shutdown(error, message);
659 659 vm_shutdown();
660 660 }
661 661
662 662 JDK_Version JDK_Version::_current;
663 +const char* JDK_Version::_runtime_name;
663 664
664 665 void JDK_Version::initialize() {
665 666 jdk_version_info info;
666 667 assert(!_current.is_valid(), "Don't initialize twice");
667 668
668 669 void *lib_handle = os::native_java_library();
669 670 jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t,
670 671 os::dll_lookup(lib_handle, "JDK_GetVersionInfo0"));
671 672
672 673 if (func == NULL) {
673 674 // JDK older than 1.6
674 675 _current._partially_initialized = true;
675 676 } else {
676 677 (*func)(&info, sizeof(info));
677 678
678 679 int major = JDK_VERSION_MAJOR(info.jdk_version);
679 680 int minor = JDK_VERSION_MINOR(info.jdk_version);
680 681 int micro = JDK_VERSION_MICRO(info.jdk_version);
681 682 int build = JDK_VERSION_BUILD(info.jdk_version);
682 683 if (major == 1 && minor > 4) {
683 684 // We represent "1.5.0" as "5.0", but 1.4.2 as itself.
684 685 major = minor;
685 686 minor = micro;
686 687 micro = 0;
687 688 }
688 689 _current = JDK_Version(major, minor, micro, info.update_version,
689 690 info.special_update_version, build,
690 691 info.thread_park_blocker == 1,
691 692 info.post_vm_init_hook_enabled == 1,
692 693 info.pending_list_uses_discovered_field == 1);
693 694 }
694 695 }
695 696
696 697 void JDK_Version::fully_initialize(
697 698 uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) {
698 699 // This is only called when current is less than 1.6 and we've gotten
699 700 // far enough in the initialization to determine the exact version.
700 701 assert(major < 6, "not needed for JDK version >= 6");
701 702 assert(is_partially_initialized(), "must not initialize");
702 703 if (major < 5) {
703 704 // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc.
704 705 micro = minor;
705 706 minor = major;
706 707 major = 1;
707 708 }
708 709 _current = JDK_Version(major, minor, micro, update);
709 710 }
710 711
711 712 void JDK_Version_init() {
712 713 JDK_Version::initialize();
713 714 }
714 715
715 716 static int64_t encode_jdk_version(const JDK_Version& v) {
716 717 return
717 718 ((int64_t)v.major_version() << (BitsPerByte * 5)) |
718 719 ((int64_t)v.minor_version() << (BitsPerByte * 4)) |
719 720 ((int64_t)v.micro_version() << (BitsPerByte * 3)) |
720 721 ((int64_t)v.update_version() << (BitsPerByte * 2)) |
721 722 ((int64_t)v.special_update_version() << (BitsPerByte * 1)) |
722 723 ((int64_t)v.build_number() << (BitsPerByte * 0));
723 724 }
724 725
725 726 int JDK_Version::compare(const JDK_Version& other) const {
726 727 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)");
727 728 if (!is_partially_initialized() && other.is_partially_initialized()) {
728 729 return -(other.compare(*this)); // flip the comparators
729 730 }
730 731 assert(!other.is_partially_initialized(), "Not initialized yet");
731 732 if (is_partially_initialized()) {
732 733 assert(other.major_version() >= 6,
733 734 "Invalid JDK version comparison during initialization");
734 735 return -1;
735 736 } else {
736 737 uint64_t e = encode_jdk_version(*this);
737 738 uint64_t o = encode_jdk_version(other);
738 739 return (e > o) ? 1 : ((e == o) ? 0 : -1);
739 740 }
740 741 }
741 742
742 743 void JDK_Version::to_string(char* buffer, size_t buflen) const {
743 744 size_t index = 0;
744 745 if (!is_valid()) {
745 746 jio_snprintf(buffer, buflen, "%s", "(uninitialized)");
746 747 } else if (is_partially_initialized()) {
747 748 jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0");
748 749 } else {
749 750 index += jio_snprintf(
750 751 &buffer[index], buflen - index, "%d.%d", _major, _minor);
751 752 if (_micro > 0) {
752 753 index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro);
753 754 }
754 755 if (_update > 0) {
755 756 index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update);
756 757 }
757 758 if (_special > 0) {
758 759 index += jio_snprintf(&buffer[index], buflen - index, "%c", _special);
759 760 }
760 761 if (_build > 0) {
761 762 index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build);
762 763 }
763 764 }
764 765 }
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