1 /*
2 * Copyright (c) 1997, 2026, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "cds/aotMetaspace.hpp"
26 #include "cds/cds_globals.hpp"
27 #include "cds/cdsConfig.hpp"
28 #include "cds/classListWriter.hpp"
29 #include "cds/dynamicArchive.hpp"
30 #include "classfile/classLoader.hpp"
31 #include "classfile/classLoaderDataGraph.hpp"
32 #include "classfile/javaClasses.hpp"
33 #include "classfile/stringTable.hpp"
34 #include "classfile/symbolTable.hpp"
35 #include "classfile/systemDictionary.hpp"
36 #include "code/codeCache.hpp"
37 #include "compiler/compilationMemoryStatistic.hpp"
38 #include "compiler/compilationPolicy.hpp"
39 #include "compiler/compileBroker.hpp"
40 #include "compiler/compilerOracle.hpp"
41 #include "gc/shared/collectedHeap.hpp"
42 #include "gc/shared/stringdedup/stringDedup.hpp"
43 #include "interpreter/bytecodeHistogram.hpp"
44 #include "jfr/jfrEvents.hpp"
45 #include "jfr/support/jfrThreadId.hpp"
46 #include "jvm.h"
47 #include "logging/log.hpp"
48 #include "logging/logStream.hpp"
49 #include "memory/metaspaceUtils.hpp"
50 #include "memory/oopFactory.hpp"
51 #include "memory/resourceArea.hpp"
52 #include "memory/universe.hpp"
53 #include "nmt/memMapPrinter.hpp"
54 #include "nmt/memTracker.hpp"
55 #include "oops/constantPool.hpp"
56 #include "oops/generateOopMap.hpp"
57 #include "oops/instanceKlass.hpp"
58 #include "oops/instanceOop.hpp"
59 #include "oops/klassVtable.hpp"
60 #include "oops/method.inline.hpp"
61 #include "oops/objArrayOop.hpp"
62 #include "oops/oop.inline.hpp"
63 #include "oops/symbol.hpp"
64 #include "prims/jvmtiAgentList.hpp"
65 #include "prims/jvmtiExport.hpp"
66 #include "runtime/continuation.hpp"
67 #include "runtime/deoptimization.hpp"
68 #include "runtime/flags/flagSetting.hpp"
69 #include "runtime/handles.inline.hpp"
70 #include "runtime/init.hpp"
71 #include "runtime/interfaceSupport.inline.hpp"
72 #include "runtime/java.hpp"
73 #include "runtime/javaThread.hpp"
74 #include "runtime/os.hpp"
75 #include "runtime/sharedRuntime.hpp"
76 #include "runtime/stubRoutines.hpp"
77 #include "runtime/task.hpp"
78 #include "runtime/threads.hpp"
79 #include "runtime/timer.hpp"
80 #include "runtime/trimNativeHeap.hpp"
81 #include "runtime/vm_version.hpp"
82 #include "runtime/vmOperations.hpp"
83 #include "runtime/vmThread.hpp"
84 #include "sanitizers/leak.hpp"
85 #include "utilities/dtrace.hpp"
86 #include "utilities/events.hpp"
87 #include "utilities/globalDefinitions.hpp"
88 #include "utilities/macros.hpp"
89 #include "utilities/vmError.hpp"
90 #ifdef COMPILER1
91 #include "c1/c1_Compiler.hpp"
92 #include "c1/c1_Runtime1.hpp"
93 #endif
94 #ifdef COMPILER2
95 #include "code/compiledIC.hpp"
96 #include "opto/compile.hpp"
97 #include "opto/indexSet.hpp"
98 #include "opto/runtime.hpp"
99 #endif
100 #if INCLUDE_JFR
101 #include "jfr/jfr.hpp"
102 #endif
103 #if INCLUDE_JVMCI
104 #include "jvmci/jvmci.hpp"
105 #endif
106
107 GrowableArray<Method*>* collected_profiled_methods;
108
109 static int compare_methods(Method** a, Method** b) {
110 // compiled_invocation_count() returns int64_t, forcing the entire expression
111 // to be evaluated as int64_t. Overflow is not an issue.
112 int64_t diff = (((*b)->invocation_count() + (*b)->compiled_invocation_count())
113 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()));
114 return (diff < 0) ? -1 : (diff > 0) ? 1 : 0;
115 }
116
117 static void collect_profiled_methods(Method* m) {
118 Thread* thread = Thread::current();
119 methodHandle mh(thread, m);
120 if ((m->method_data() != nullptr) &&
121 (PrintMethodData || CompilerOracle::should_print(mh))) {
122 collected_profiled_methods->push(m);
123 }
124 }
125
126 static void print_method_profiling_data() {
127 if ((ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) &&
128 (PrintMethodData || CompilerOracle::should_print_methods())) {
129 ResourceMark rm;
130 collected_profiled_methods = new GrowableArray<Method*>(1024);
131 SystemDictionary::methods_do(collect_profiled_methods);
132 collected_profiled_methods->sort(&compare_methods);
133
134 int count = collected_profiled_methods->length();
135 int total_size = 0;
136 if (count > 0) {
137 for (int index = 0; index < count; index++) {
138 Method* m = collected_profiled_methods->at(index);
139
140 // Instead of taking tty lock, we collect all lines into a string stream
141 // and then print them all at once.
142 ResourceMark rm2;
143 stringStream ss;
144
145 ss.print_cr("------------------------------------------------------------------------");
146 m->print_invocation_count(&ss);
147 ss.print_cr(" mdo size: %d bytes", m->method_data()->size_in_bytes());
148 ss.cr();
149 // Dump data on parameters if any
150 if (m->method_data() != nullptr && m->method_data()->parameters_type_data() != nullptr) {
151 ss.fill_to(2);
152 m->method_data()->parameters_type_data()->print_data_on(&ss);
153 }
154 // Buffering to a stringStream, disable internal buffering so it's not done twice.
155 m->print_codes_on(&ss, 0, false);
156 tty->print("%s", ss.as_string()); // print all at once
157 total_size += m->method_data()->size_in_bytes();
158 }
159 tty->print_cr("------------------------------------------------------------------------");
160 tty->print_cr("Total MDO size: %d bytes", total_size);
161 }
162 }
163 }
164
165 #ifndef PRODUCT
166
167 // Statistics printing (method invocation histogram)
168
169 GrowableArray<Method*>* collected_invoked_methods;
170
171 static void collect_invoked_methods(Method* m) {
172 if (m->invocation_count() + m->compiled_invocation_count() >= 1) {
173 collected_invoked_methods->push(m);
174 }
175 }
176
177
178 // Invocation count accumulators should be unsigned long to shift the
179 // overflow border. Longer-running workloads tend to create invocation
180 // counts which already overflow 32-bit counters for individual methods.
181 static void print_method_invocation_histogram() {
182 ResourceMark rm;
183 collected_invoked_methods = new GrowableArray<Method*>(1024);
184 SystemDictionary::methods_do(collect_invoked_methods);
185 collected_invoked_methods->sort(&compare_methods);
186 //
187 tty->cr();
188 tty->print_cr("Histogram Over Method Invocation Counters (cutoff = %zd):", MethodHistogramCutoff);
189 tty->cr();
190 tty->print_cr("____Count_(I+C)____Method________________________Module_________________");
191 uint64_t total = 0,
192 int_total = 0,
193 comp_total = 0,
194 special_total= 0,
195 static_total = 0,
196 final_total = 0,
197 synch_total = 0,
198 native_total = 0,
199 access_total = 0;
200 for (int index = 0; index < collected_invoked_methods->length(); index++) {
201 // Counter values returned from getter methods are signed int.
202 // To shift the overflow border by a factor of two, we interpret
203 // them here as unsigned long. A counter can't be negative anyway.
204 Method* m = collected_invoked_methods->at(index);
205 uint64_t iic = (uint64_t)m->invocation_count();
206 uint64_t cic = (uint64_t)m->compiled_invocation_count();
207 if ((iic + cic) >= (uint64_t)MethodHistogramCutoff) m->print_invocation_count(tty);
208 int_total += iic;
209 comp_total += cic;
210 if (m->is_final()) final_total += iic + cic;
211 if (m->is_static()) static_total += iic + cic;
212 if (m->is_synchronized()) synch_total += iic + cic;
213 if (m->is_native()) native_total += iic + cic;
214 if (m->is_accessor()) access_total += iic + cic;
215 }
216 tty->cr();
217 total = int_total + comp_total;
218 special_total = final_total + static_total +synch_total + native_total + access_total;
219 tty->print_cr("Invocations summary for %d methods:", collected_invoked_methods->length());
220 double total_div = (double)total;
221 tty->print_cr("\t" UINT64_FORMAT_W(12) " (100%%) total", total);
222 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- interpreted", int_total, 100.0 * (double)int_total / total_div);
223 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- compiled", comp_total, 100.0 * (double)comp_total / total_div);
224 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- special methods (interpreted and compiled)",
225 special_total, 100.0 * (double)special_total/ total_div);
226 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- synchronized",synch_total, 100.0 * (double)synch_total / total_div);
227 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- final", final_total, 100.0 * (double)final_total / total_div);
228 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- static", static_total, 100.0 * (double)static_total / total_div);
229 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- native", native_total, 100.0 * (double)native_total / total_div);
230 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- accessor", access_total, 100.0 * (double)access_total / total_div);
231 tty->cr();
232 SharedRuntime::print_call_statistics(comp_total);
233 }
234
235 static void print_bytecode_count() {
236 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
237 tty->print_cr("[BytecodeCounter::counter_value = %zu]", BytecodeCounter::counter_value());
238 }
239 }
240
241 #else
242
243 static void print_method_invocation_histogram() {}
244 static void print_bytecode_count() {}
245
246 #endif // PRODUCT
247
248
249 // General statistics printing (profiling ...)
250 void print_statistics() {
251 if (CITime) {
252 CompileBroker::print_times();
253 }
254
255 #ifdef COMPILER1
256 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) {
257 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics);
258 Runtime1::print_statistics();
259 SharedRuntime::print_statistics();
260 }
261 #endif /* COMPILER1 */
262
263 #ifdef COMPILER2
264 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) {
265 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics);
266 Compile::print_statistics();
267 Deoptimization::print_statistics();
268 #ifndef COMPILER1
269 SharedRuntime::print_statistics();
270 #endif //COMPILER1
271 }
272
273 if (PrintLockStatistics) {
274 OptoRuntime::print_named_counters();
275 }
276 #ifdef ASSERT
277 if (CollectIndexSetStatistics) {
278 IndexSet::print_statistics();
279 }
280 #endif // ASSERT
281 #else // COMPILER2
282 #if INCLUDE_JVMCI
283 #ifndef COMPILER1
284 if ((TraceDeoptimization || LogVMOutput || LogCompilation) && UseCompiler) {
285 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && TraceDeoptimization);
286 Deoptimization::print_statistics();
287 SharedRuntime::print_statistics();
288 }
289 #endif // COMPILER1
290 #endif // INCLUDE_JVMCI
291 #endif // COMPILER2
292
293 if (PrintNMethodStatistics) {
294 nmethod::print_statistics();
295 }
296 if (CountCompiledCalls) {
297 print_method_invocation_histogram();
298 }
299
300 print_method_profiling_data();
301
302 if (TimeOopMap) {
303 GenerateOopMap::print_time();
304 }
305 if (PrintSymbolTableSizeHistogram) {
306 SymbolTable::print_histogram();
307 }
308 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
309 BytecodeCounter::print();
310 }
311 if (PrintBytecodePairHistogram) {
312 BytecodePairHistogram::print();
313 }
314
315 if (PrintCodeCache) {
316 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
317 CodeCache::print();
318 }
319
320 // CodeHeap State Analytics.
321 if (PrintCodeHeapAnalytics) {
322 CompileBroker::print_heapinfo(nullptr, "all", 4096); // details
323 }
324
325 #ifndef PRODUCT
326 if (PrintCodeCache2) {
327 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
328 CodeCache::print_internals();
329 }
330 #endif
331
332 if (VerifyOops && Verbose) {
333 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count());
334 }
335
336 print_bytecode_count();
337
338 if (PrintVMInfoAtExit) {
339 // Use an intermediate stream to prevent deadlocking on tty_lock
340 stringStream ss;
341 VMError::print_vm_info(&ss);
342 tty->print_raw(ss.base());
343 }
344
345 if (PrintSystemDictionaryAtExit) {
346 ResourceMark rm;
347 MutexLocker mcld(ClassLoaderDataGraph_lock);
348 SystemDictionary::print();
349 }
350
351 if (PrintClassLoaderDataGraphAtExit) {
352 ResourceMark rm;
353 MutexLocker mcld(ClassLoaderDataGraph_lock);
354 ClassLoaderDataGraph::print();
355 }
356
357 // Native memory tracking data
358 if (PrintNMTStatistics) {
359 MemTracker::final_report(tty);
360 }
361
362 if (PrintMetaspaceStatisticsAtExit) {
363 MetaspaceUtils::print_basic_report(tty, 0);
364 }
365
366 if (PrintCompilerMemoryStatisticsAtExit) {
367 CompilationMemoryStatistic::print_final_report(tty);
368 }
369
370 ThreadsSMRSupport::log_statistics();
371
372 if (log_is_enabled(Info, perf, class, link)) {
373 LogStreamHandle(Info, perf, class, link) log;
374 log.print_cr("At VM exit:");
375 ClassLoader::print_counters(&log);
376 }
377 }
378
379 // Note: before_exit() can be executed only once, if more than one threads
380 // are trying to shutdown the VM at the same time, only one thread
381 // can run before_exit() and all other threads must wait.
382 void before_exit(JavaThread* thread, bool halt) {
383 #define BEFORE_EXIT_NOT_RUN 0
384 #define BEFORE_EXIT_RUNNING 1
385 #define BEFORE_EXIT_DONE 2
386 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN;
387
388 Events::log(thread, "Before exit entered");
389
390 // Note: don't use a Mutex to guard the entire before_exit(), as
391 // JVMTI post_thread_end_event and post_vm_death_event will run native code.
392 // A CAS or OSMutex would work just fine but then we need to manipulate
393 // thread state for Safepoint. Here we use Monitor wait() and notify_all()
394 // for synchronization.
395 { MonitorLocker ml(BeforeExit_lock);
396 switch (_before_exit_status) {
397 case BEFORE_EXIT_NOT_RUN:
398 _before_exit_status = BEFORE_EXIT_RUNNING;
399 break;
400 case BEFORE_EXIT_RUNNING:
401 while (_before_exit_status == BEFORE_EXIT_RUNNING) {
402 ml.wait();
403 }
404 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state");
405 return;
406 case BEFORE_EXIT_DONE:
407 // need block to avoid SS compiler bug
408 {
409 return;
410 }
411 }
412 }
413
414 // At this point only one thread is executing this logic. Any other threads
415 // attempting to invoke before_exit() will wait above and return early once
416 // this thread finishes before_exit().
417
418 // Do not add any additional shutdown logic between the above mutex logic and
419 // leak sanitizer logic below. Any additional shutdown code which performs some
420 // cleanup should be added after the leak sanitizer logic below.
421
422 #ifdef LEAK_SANITIZER
423 // If we are built with LSan, we need to perform leak checking. If we are
424 // terminating normally, not halting and no VM error, we perform a normal
425 // leak check which terminates if leaks are found. If we are not terminating
426 // normally, halting or VM error, we perform a recoverable leak check which
427 // prints leaks but will not terminate.
428 if (!halt && !VMError::is_error_reported()) {
429 LSAN_DO_LEAK_CHECK();
430 } else {
431 // Ignore the return value.
432 static_cast<void>(LSAN_DO_RECOVERABLE_LEAK_CHECK());
433 }
434 #endif
435
436 #if INCLUDE_CDS
437 // Dynamic CDS dumping must happen whilst we can still reliably
438 // run Java code.
439 DynamicArchive::dump_at_exit(thread);
440 assert(!thread->has_pending_exception(), "must be");
441 #endif
442
443 // Actual shutdown logic begins here.
444
445 #if INCLUDE_JVMCI
446 if (EnableJVMCI) {
447 JVMCI::shutdown(thread);
448 }
449 #endif
450
451 #if INCLUDE_CDS
452 ClassListWriter::write_resolved_constants();
453
454 if (CDSConfig::is_dumping_preimage_static_archive()) {
455 AOTMetaspace::dump_static_archive(thread);
456 }
457 #endif
458
459 // Hang forever on exit if we're reporting an error.
460 if (ShowMessageBoxOnError && VMError::is_error_reported()) {
461 os::infinite_sleep();
462 }
463
464 EventThreadEnd event;
465 if (event.should_commit()) {
466 event.set_thread(JFR_JVM_THREAD_ID(thread));
467 event.commit();
468 }
469
470 JFR_ONLY(Jfr::on_vm_shutdown(false, halt);)
471
472 // Stop the WatcherThread. We do this before disenrolling various
473 // PeriodicTasks to reduce the likelihood of races.
474 WatcherThread::stop();
475
476 NativeHeapTrimmer::cleanup();
477
478 if (JvmtiExport::should_post_thread_life()) {
479 JvmtiExport::post_thread_end(thread);
480 }
481
482 // Always call even when there are not JVMTI environments yet, since environments
483 // may be attached late and JVMTI must track phases of VM execution.
484 JvmtiExport::post_vm_death();
485 JvmtiAgentList::unload_agents();
486
487 // No user code can be executed in the current thread after this point.
488
489 // Run before exit and then stop concurrent GC threads.
490 Universe::before_exit();
491
492 if (PrintBytecodeHistogram) {
493 BytecodeHistogram::print();
494 }
495
496 #ifdef LINUX
497 if (DumpPerfMapAtExit) {
498 CodeCache::write_perf_map(nullptr, tty);
499 }
500 if (PrintMemoryMapAtExit) {
501 MemMapPrinter::print_all_mappings(tty);
502 }
503 #endif
504
505 // Terminate the signal thread
506 // Note: we don't wait until it actually dies.
507 os::terminate_signal_thread();
508
509 #if INCLUDE_CDS
510 if (AOTVerifyTrainingData) {
511 TrainingData::verify();
512 }
513 #endif
514
515 print_statistics();
516
517 { MutexLocker ml(BeforeExit_lock);
518 _before_exit_status = BEFORE_EXIT_DONE;
519 BeforeExit_lock->notify_all();
520 }
521
522 if (VerifyStringTableAtExit) {
523 size_t fail_cnt = StringTable::verify_and_compare_entries();
524 if (fail_cnt != 0) {
525 tty->print_cr("ERROR: fail_cnt=%zu", fail_cnt);
526 guarantee(fail_cnt == 0, "unexpected StringTable verification failures");
527 }
528 }
529
530 #undef BEFORE_EXIT_NOT_RUN
531 #undef BEFORE_EXIT_RUNNING
532 #undef BEFORE_EXIT_DONE
533 }
534
535 void vm_exit(int code) {
536 Thread* thread =
537 ThreadLocalStorage::is_initialized() ? Thread::current_or_null() : nullptr;
538 if (thread == nullptr) {
539 // very early initialization failure -- just exit
540 vm_direct_exit(code);
541 }
542
543 // We'd like to add an entry to the XML log to show that the VM is
544 // terminating, but we can't safely do that here. The logic to make
545 // XML termination logging safe is tied to the termination of the
546 // VMThread, and it doesn't terminate on this exit path. See 8222534.
547
548 if (VMThread::vm_thread() != nullptr) {
549 if (thread->is_Java_thread()) {
550 // We must be "in_vm" for the code below to work correctly.
551 // Historically there must have been some exit path for which
552 // that was not the case and so we set it explicitly - even
553 // though we no longer know what that path may be.
554 JavaThread::cast(thread)->set_thread_state(_thread_in_vm);
555 }
556
557 // Fire off a VM_Exit operation to bring VM to a safepoint and exit
558 VM_Exit op(code);
559
560 // 4945125 The vm thread comes to a safepoint during exit.
561 // GC vm_operations can get caught at the safepoint, and the
562 // heap is unparseable if they are caught. Grab the Heap_lock
563 // to prevent this. The GC vm_operations will not be able to
564 // queue until after we release it, but we never do that as we
565 // are terminating the VM process.
566 MutexLocker ml(Heap_lock);
567
568 VMThread::execute(&op);
569 // should never reach here; but in case something wrong with VM Thread.
570 vm_direct_exit(code);
571 } else {
572 // VM thread is gone, just exit
573 vm_direct_exit(code);
574 }
575 ShouldNotReachHere();
576 }
577
578 void notify_vm_shutdown() {
579 // For now, just a dtrace probe.
580 HOTSPOT_VM_SHUTDOWN();
581 }
582
583 void vm_direct_exit(int code) {
584 notify_vm_shutdown();
585 os::wait_for_keypress_at_exit();
586 os::exit(code);
587 }
588
589 void vm_direct_exit(int code, const char* message) {
590 if (message != nullptr) {
591 tty->print_cr("%s", message);
592 }
593 vm_direct_exit(code);
594 }
595
596 static void vm_perform_shutdown_actions() {
597 if (is_init_completed()) {
598 Thread* thread = Thread::current_or_null();
599 if (thread != nullptr && thread->is_Java_thread()) {
600 // We are leaving the VM, set state to native (in case any OS exit
601 // handlers call back to the VM)
602 JavaThread* jt = JavaThread::cast(thread);
603 // Must always be walkable or have no last_Java_frame when in
604 // thread_in_native
605 jt->frame_anchor()->make_walkable();
606 jt->set_thread_state(_thread_in_native);
607 }
608 }
609 notify_vm_shutdown();
610 }
611
612 void vm_shutdown()
613 {
614 vm_perform_shutdown_actions();
615 os::wait_for_keypress_at_exit();
616 os::shutdown();
617 }
618
619 void vm_abort(bool dump_core) {
620 vm_perform_shutdown_actions();
621 os::wait_for_keypress_at_exit();
622
623 // Flush stdout and stderr before abort.
624 fflush(stdout);
625 fflush(stderr);
626
627 os::abort(dump_core);
628 ShouldNotReachHere();
629 }
630
631 static void vm_notify_during_cds_dumping(const char* error, const char* message) {
632 if (error != nullptr) {
633 tty->print_cr("Error occurred during CDS dumping");
634 tty->print("%s", error);
635 if (message != nullptr) {
636 tty->print_cr(": %s", message);
637 }
638 else {
639 tty->cr();
640 }
641 }
642 }
643
644 void vm_exit_during_cds_dumping(const char* error, const char* message) {
645 vm_notify_during_cds_dumping(error, message);
646
647 // Failure during CDS dumping, we don't want to dump core
648 vm_abort(false);
649 }
650
651 static void vm_notify_during_shutdown(const char* error, const char* message) {
652 if (error != nullptr) {
653 tty->print_cr("Error occurred during initialization of VM");
654 tty->print("%s", error);
655 if (message != nullptr) {
656 tty->print_cr(": %s", message);
657 }
658 else {
659 tty->cr();
660 }
661 }
662 if (ShowMessageBoxOnError && WizardMode) {
663 fatal("Error occurred during initialization of VM");
664 }
665 }
666
667 void vm_exit_during_initialization() {
668 vm_notify_during_shutdown(nullptr, nullptr);
669
670 // Failure during initialization, we don't want to dump core
671 vm_abort(false);
672 }
673
674 void vm_exit_during_initialization(Handle exception) {
675 tty->print_cr("Error occurred during initialization of VM");
676 // If there are exceptions on this thread it must be cleared
677 // first and here. Any future calls to EXCEPTION_MARK requires
678 // that no pending exceptions exist.
679 JavaThread* THREAD = JavaThread::current(); // can't be null
680 if (HAS_PENDING_EXCEPTION) {
681 CLEAR_PENDING_EXCEPTION;
682 }
683 java_lang_Throwable::print_stack_trace(exception, tty);
684 tty->cr();
685 vm_notify_during_shutdown(nullptr, nullptr);
686
687 // Failure during initialization, we don't want to dump core
688 vm_abort(false);
689 }
690
691 void vm_exit_during_initialization(Symbol* ex, const char* message) {
692 ResourceMark rm;
693 vm_notify_during_shutdown(ex->as_C_string(), message);
694
695 // Failure during initialization, we don't want to dump core
696 vm_abort(false);
697 }
698
699 void vm_exit_during_initialization(const char* error, const char* message) {
700 vm_notify_during_shutdown(error, message);
701
702 // Failure during initialization, we don't want to dump core
703 vm_abort(false);
704 }
705
706 void vm_shutdown_during_initialization(const char* error, const char* message) {
707 vm_notify_during_shutdown(error, message);
708 vm_shutdown();
709 }
710
711 JDK_Version JDK_Version::_current;
712 const char* JDK_Version::_java_version;
713 const char* JDK_Version::_runtime_name;
714 const char* JDK_Version::_runtime_version;
715 const char* JDK_Version::_runtime_vendor_version;
716 const char* JDK_Version::_runtime_vendor_vm_bug_url;
717
718 void JDK_Version::initialize() {
719 assert(!_current.is_valid(), "Don't initialize twice");
720
721 int major = VM_Version::vm_major_version();
722 int minor = VM_Version::vm_minor_version();
723 int security = VM_Version::vm_security_version();
724 int build = VM_Version::vm_build_number();
725 int patch = VM_Version::vm_patch_version();
726 _current = JDK_Version(major, minor, security, patch, build);
727 }
728
729 void JDK_Version_init() {
730 JDK_Version::initialize();
731 }
732
733 static int64_t encode_jdk_version(const JDK_Version& v) {
734 return
735 ((int64_t)v.major_version() << (BitsPerByte * 4)) |
736 ((int64_t)v.minor_version() << (BitsPerByte * 3)) |
737 ((int64_t)v.security_version() << (BitsPerByte * 2)) |
738 ((int64_t)v.patch_version() << (BitsPerByte * 1)) |
739 ((int64_t)v.build_number() << (BitsPerByte * 0));
740 }
741
742 int JDK_Version::compare(const JDK_Version& other) const {
743 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)");
744 uint64_t e = encode_jdk_version(*this);
745 uint64_t o = encode_jdk_version(other);
746 return (e > o) ? 1 : ((e == o) ? 0 : -1);
747 }
748
749 /* See JEP 223 */
750 void JDK_Version::to_string(char* buffer, size_t buflen) const {
751 assert((buffer != nullptr) && (buflen > 0), "call with useful buffer");
752 stringStream ss{buffer, buflen};
753 if (!is_valid()) {
754 ss.print_raw("(uninitialized)");
755 } else {
756 ss.print("%d.%d", _major, _minor);
757 if (_patch > 0) {
758 ss.print(".%d.%d", _security, _patch);
759 } else if (_security > 0) {
760 ss.print(".%d", _security);
761 }
762 if (_build > 0) {
763 ss.print("+%d", _build);
764 }
765 }
766 }
767
768 void JDK_Version::set_java_version(const char* version) {
769 _java_version = os::strdup(version);
770 }
771
772 void JDK_Version::set_runtime_name(const char* name) {
773 _runtime_name = os::strdup(name);
774 }
775
776 void JDK_Version::set_runtime_version(const char* version) {
777 _runtime_version = os::strdup(version);
778 }
779
780 void JDK_Version::set_runtime_vendor_version(const char* vendor_version) {
781 _runtime_vendor_version = os::strdup(vendor_version);
782 }
783
784 void JDK_Version::set_runtime_vendor_vm_bug_url(const char* vendor_vm_bug_url) {
785 _runtime_vendor_vm_bug_url = os::strdup(vendor_vm_bug_url);
786 }