1 /*
2 * Copyright (c) 1997, 2025, 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/sharedRuntime.hpp"
75 #include "runtime/stubRoutines.hpp"
76 #include "runtime/task.hpp"
77 #include "runtime/threads.hpp"
78 #include "runtime/timer.hpp"
79 #include "runtime/trimNativeHeap.hpp"
80 #include "runtime/vm_version.hpp"
81 #include "runtime/vmOperations.hpp"
82 #include "runtime/vmThread.hpp"
83 #include "sanitizers/leak.hpp"
84 #include "utilities/dtrace.hpp"
85 #include "utilities/events.hpp"
86 #include "utilities/globalDefinitions.hpp"
87 #include "utilities/macros.hpp"
88 #include "utilities/vmError.hpp"
89 #ifdef COMPILER1
90 #include "c1/c1_Compiler.hpp"
91 #include "c1/c1_Runtime1.hpp"
92 #endif
93 #ifdef COMPILER2
94 #include "code/compiledIC.hpp"
95 #include "opto/compile.hpp"
96 #include "opto/indexSet.hpp"
97 #include "opto/runtime.hpp"
98 #endif
99 #if INCLUDE_JFR
100 #include "jfr/jfr.hpp"
101 #endif
102 #if INCLUDE_JVMCI
103 #include "jvmci/jvmci.hpp"
104 #endif
105
106 GrowableArray<Method*>* collected_profiled_methods;
107
108 static int compare_methods(Method** a, Method** b) {
109 // compiled_invocation_count() returns int64_t, forcing the entire expression
110 // to be evaluated as int64_t. Overflow is not an issue.
111 int64_t diff = (((*b)->invocation_count() + (*b)->compiled_invocation_count())
112 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()));
113 return (diff < 0) ? -1 : (diff > 0) ? 1 : 0;
114 }
115
116 static void collect_profiled_methods(Method* m) {
117 Thread* thread = Thread::current();
118 methodHandle mh(thread, m);
119 if ((m->method_data() != nullptr) &&
120 (PrintMethodData || CompilerOracle::should_print(mh))) {
121 collected_profiled_methods->push(m);
122 }
123 }
124
125 static void print_method_profiling_data() {
126 if ((ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) &&
127 (PrintMethodData || CompilerOracle::should_print_methods())) {
128 ResourceMark rm;
129 collected_profiled_methods = new GrowableArray<Method*>(1024);
130 SystemDictionary::methods_do(collect_profiled_methods);
131 collected_profiled_methods->sort(&compare_methods);
132
133 int count = collected_profiled_methods->length();
134 int total_size = 0;
135 if (count > 0) {
136 for (int index = 0; index < count; index++) {
137 Method* m = collected_profiled_methods->at(index);
138
139 // Instead of taking tty lock, we collect all lines into a string stream
140 // and then print them all at once.
141 ResourceMark rm2;
142 stringStream ss;
143
144 ss.print_cr("------------------------------------------------------------------------");
145 m->print_invocation_count(&ss);
146 ss.print_cr(" mdo size: %d bytes", m->method_data()->size_in_bytes());
147 ss.cr();
148 // Dump data on parameters if any
149 if (m->method_data() != nullptr && m->method_data()->parameters_type_data() != nullptr) {
150 ss.fill_to(2);
151 m->method_data()->parameters_type_data()->print_data_on(&ss);
152 }
153 m->print_codes_on(&ss);
154 tty->print("%s", ss.as_string()); // print all at once
155 total_size += m->method_data()->size_in_bytes();
156 }
157 tty->print_cr("------------------------------------------------------------------------");
158 tty->print_cr("Total MDO size: %d bytes", total_size);
159 }
160 }
161 }
162
163 #ifndef PRODUCT
164
165 // Statistics printing (method invocation histogram)
166
167 GrowableArray<Method*>* collected_invoked_methods;
168
169 static void collect_invoked_methods(Method* m) {
170 if (m->invocation_count() + m->compiled_invocation_count() >= 1) {
171 collected_invoked_methods->push(m);
172 }
173 }
174
175
176 // Invocation count accumulators should be unsigned long to shift the
177 // overflow border. Longer-running workloads tend to create invocation
178 // counts which already overflow 32-bit counters for individual methods.
179 static void print_method_invocation_histogram() {
180 ResourceMark rm;
181 collected_invoked_methods = new GrowableArray<Method*>(1024);
182 SystemDictionary::methods_do(collect_invoked_methods);
183 collected_invoked_methods->sort(&compare_methods);
184 //
185 tty->cr();
186 tty->print_cr("Histogram Over Method Invocation Counters (cutoff = %zd):", MethodHistogramCutoff);
187 tty->cr();
188 tty->print_cr("____Count_(I+C)____Method________________________Module_________________");
189 uint64_t total = 0,
190 int_total = 0,
191 comp_total = 0,
192 special_total= 0,
193 static_total = 0,
194 final_total = 0,
195 synch_total = 0,
196 native_total = 0,
197 access_total = 0;
198 for (int index = 0; index < collected_invoked_methods->length(); index++) {
199 // Counter values returned from getter methods are signed int.
200 // To shift the overflow border by a factor of two, we interpret
201 // them here as unsigned long. A counter can't be negative anyway.
202 Method* m = collected_invoked_methods->at(index);
203 uint64_t iic = (uint64_t)m->invocation_count();
204 uint64_t cic = (uint64_t)m->compiled_invocation_count();
205 if ((iic + cic) >= (uint64_t)MethodHistogramCutoff) m->print_invocation_count(tty);
206 int_total += iic;
207 comp_total += cic;
208 if (m->is_final()) final_total += iic + cic;
209 if (m->is_static()) static_total += iic + cic;
210 if (m->is_synchronized()) synch_total += iic + cic;
211 if (m->is_native()) native_total += iic + cic;
212 if (m->is_accessor()) access_total += iic + cic;
213 }
214 tty->cr();
215 total = int_total + comp_total;
216 special_total = final_total + static_total +synch_total + native_total + access_total;
217 tty->print_cr("Invocations summary for %d methods:", collected_invoked_methods->length());
218 double total_div = (double)total;
219 tty->print_cr("\t" UINT64_FORMAT_W(12) " (100%%) total", total);
220 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- interpreted", int_total, 100.0 * (double)int_total / total_div);
221 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- compiled", comp_total, 100.0 * (double)comp_total / total_div);
222 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- special methods (interpreted and compiled)",
223 special_total, 100.0 * (double)special_total/ total_div);
224 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- synchronized",synch_total, 100.0 * (double)synch_total / total_div);
225 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- final", final_total, 100.0 * (double)final_total / total_div);
226 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- static", static_total, 100.0 * (double)static_total / total_div);
227 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- native", native_total, 100.0 * (double)native_total / total_div);
228 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- accessor", access_total, 100.0 * (double)access_total / total_div);
229 tty->cr();
230 SharedRuntime::print_call_statistics(comp_total);
231 }
232
233 static void print_bytecode_count() {
234 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
235 tty->print_cr("[BytecodeCounter::counter_value = %zu]", BytecodeCounter::counter_value());
236 }
237 }
238
239 #else
240
241 static void print_method_invocation_histogram() {}
242 static void print_bytecode_count() {}
243
244 #endif // PRODUCT
245
246
247 // General statistics printing (profiling ...)
248 void print_statistics() {
249 if (CITime) {
250 CompileBroker::print_times();
251 }
252
253 #ifdef COMPILER1
254 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) {
255 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics);
256 Runtime1::print_statistics();
257 SharedRuntime::print_statistics();
258 }
259 #endif /* COMPILER1 */
260
261 #ifdef COMPILER2
262 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) {
263 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics);
264 Compile::print_statistics();
265 Deoptimization::print_statistics();
266 #ifndef COMPILER1
267 SharedRuntime::print_statistics();
268 #endif //COMPILER1
269 }
270
271 if (PrintLockStatistics) {
272 OptoRuntime::print_named_counters();
273 }
274 #ifdef ASSERT
275 if (CollectIndexSetStatistics) {
276 IndexSet::print_statistics();
277 }
278 #endif // ASSERT
279 #else // COMPILER2
280 #if INCLUDE_JVMCI
281 #ifndef COMPILER1
282 if ((TraceDeoptimization || LogVMOutput || LogCompilation) && UseCompiler) {
283 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && TraceDeoptimization);
284 Deoptimization::print_statistics();
285 SharedRuntime::print_statistics();
286 }
287 #endif // COMPILER1
288 #endif // INCLUDE_JVMCI
289 #endif // COMPILER2
290
291 if (PrintNMethodStatistics) {
292 nmethod::print_statistics();
293 }
294 if (CountCompiledCalls) {
295 print_method_invocation_histogram();
296 }
297
298 print_method_profiling_data();
299
300 if (TimeOopMap) {
301 GenerateOopMap::print_time();
302 }
303 if (PrintSymbolTableSizeHistogram) {
304 SymbolTable::print_histogram();
305 }
306 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
307 BytecodeCounter::print();
308 }
309 if (PrintBytecodePairHistogram) {
310 BytecodePairHistogram::print();
311 }
312
313 if (PrintCodeCache) {
314 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
315 CodeCache::print();
316 }
317
318 // CodeHeap State Analytics.
319 if (PrintCodeHeapAnalytics) {
320 CompileBroker::print_heapinfo(nullptr, "all", 4096); // details
321 }
322
323 #ifndef PRODUCT
324 if (PrintCodeCache2) {
325 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
326 CodeCache::print_internals();
327 }
328 #endif
329
330 if (VerifyOops && Verbose) {
331 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count());
332 }
333
334 print_bytecode_count();
335
336 if (PrintVMInfoAtExit) {
337 // Use an intermediate stream to prevent deadlocking on tty_lock
338 stringStream ss;
339 VMError::print_vm_info(&ss);
340 tty->print_raw(ss.base());
341 }
342
343 if (PrintSystemDictionaryAtExit) {
344 ResourceMark rm;
345 MutexLocker mcld(ClassLoaderDataGraph_lock);
346 SystemDictionary::print();
347 }
348
349 if (PrintClassLoaderDataGraphAtExit) {
350 ResourceMark rm;
351 MutexLocker mcld(ClassLoaderDataGraph_lock);
352 ClassLoaderDataGraph::print();
353 }
354
355 // Native memory tracking data
356 if (PrintNMTStatistics) {
357 MemTracker::final_report(tty);
358 }
359
360 if (PrintMetaspaceStatisticsAtExit) {
361 MetaspaceUtils::print_basic_report(tty, 0);
362 }
363
364 if (PrintCompilerMemoryStatisticsAtExit) {
365 CompilationMemoryStatistic::print_final_report(tty);
366 }
367
368 ThreadsSMRSupport::log_statistics();
369
370 if (log_is_enabled(Info, perf, class, link)) {
371 LogStreamHandle(Info, perf, class, link) log;
372 log.print_cr("At VM exit:");
373 ClassLoader::print_counters(&log);
374 }
375 }
376
377 // Note: before_exit() can be executed only once, if more than one threads
378 // are trying to shutdown the VM at the same time, only one thread
379 // can run before_exit() and all other threads must wait.
380 void before_exit(JavaThread* thread, bool halt) {
381 #define BEFORE_EXIT_NOT_RUN 0
382 #define BEFORE_EXIT_RUNNING 1
383 #define BEFORE_EXIT_DONE 2
384 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN;
385
386 Events::log(thread, "Before exit entered");
387
388 // Note: don't use a Mutex to guard the entire before_exit(), as
389 // JVMTI post_thread_end_event and post_vm_death_event will run native code.
390 // A CAS or OSMutex would work just fine but then we need to manipulate
391 // thread state for Safepoint. Here we use Monitor wait() and notify_all()
392 // for synchronization.
393 { MonitorLocker ml(BeforeExit_lock);
394 switch (_before_exit_status) {
395 case BEFORE_EXIT_NOT_RUN:
396 _before_exit_status = BEFORE_EXIT_RUNNING;
397 break;
398 case BEFORE_EXIT_RUNNING:
399 while (_before_exit_status == BEFORE_EXIT_RUNNING) {
400 ml.wait();
401 }
402 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state");
403 return;
404 case BEFORE_EXIT_DONE:
405 // need block to avoid SS compiler bug
406 {
407 return;
408 }
409 }
410 }
411
412 // At this point only one thread is executing this logic. Any other threads
413 // attempting to invoke before_exit() will wait above and return early once
414 // this thread finishes before_exit().
415
416 // Do not add any additional shutdown logic between the above mutex logic and
417 // leak sanitizer logic below. Any additional shutdown code which performs some
418 // cleanup should be added after the leak sanitizer logic below.
419
420 #ifdef LEAK_SANITIZER
421 // If we are built with LSan, we need to perform leak checking. If we are
422 // terminating normally, not halting and no VM error, we perform a normal
423 // leak check which terminates if leaks are found. If we are not terminating
424 // normally, halting or VM error, we perform a recoverable leak check which
425 // prints leaks but will not terminate.
426 if (!halt && !VMError::is_error_reported()) {
427 LSAN_DO_LEAK_CHECK();
428 } else {
429 // Ignore the return value.
430 static_cast<void>(LSAN_DO_RECOVERABLE_LEAK_CHECK());
431 }
432 #endif
433
434 #if INCLUDE_CDS
435 // Dynamic CDS dumping must happen whilst we can still reliably
436 // run Java code.
437 DynamicArchive::dump_at_exit(thread);
438 assert(!thread->has_pending_exception(), "must be");
439 #endif
440
441 // Actual shutdown logic begins here.
442
443 #if INCLUDE_JVMCI
444 if (EnableJVMCI) {
445 JVMCI::shutdown(thread);
446 }
447 #endif
448
449 #if INCLUDE_CDS
450 ClassListWriter::write_resolved_constants();
451
452 if (CDSConfig::is_dumping_preimage_static_archive()) {
453 AOTMetaspace::preload_and_dump(thread);
454 }
455 #endif
456
457 // Hang forever on exit if we're reporting an error.
458 if (ShowMessageBoxOnError && VMError::is_error_reported()) {
459 os::infinite_sleep();
460 }
461
462 EventThreadEnd event;
463 if (event.should_commit()) {
464 event.set_thread(JFR_JVM_THREAD_ID(thread));
465 event.commit();
466 }
467
468 // 2nd argument (emit_event_shutdown) should be set to false
469 // because EventShutdown would be emitted at Threads::destroy_vm().
470 // (one of the callers of before_exit())
471 JFR_ONLY(Jfr::on_vm_shutdown(true, false, halt);)
472
473 // Stop the WatcherThread. We do this before disenrolling various
474 // PeriodicTasks to reduce the likelihood of races.
475 WatcherThread::stop();
476
477 NativeHeapTrimmer::cleanup();
478
479 // Run before exit and then stop concurrent GC threads
480 Universe::before_exit();
481
482 if (PrintBytecodeHistogram) {
483 BytecodeHistogram::print();
484 }
485
486 #ifdef LINUX
487 if (DumpPerfMapAtExit) {
488 CodeCache::write_perf_map(nullptr, tty);
489 }
490 if (PrintMemoryMapAtExit) {
491 MemMapPrinter::print_all_mappings(tty);
492 }
493 #endif
494
495 if (JvmtiExport::should_post_thread_life()) {
496 JvmtiExport::post_thread_end(thread);
497 }
498
499 // Always call even when there are not JVMTI environments yet, since environments
500 // may be attached late and JVMTI must track phases of VM execution
501 JvmtiExport::post_vm_death();
502 JvmtiAgentList::unload_agents();
503
504 // Terminate the signal thread
505 // Note: we don't wait until it actually dies.
506 os::terminate_signal_thread();
507
508 #if INCLUDE_CDS
509 if (AOTVerifyTrainingData) {
510 TrainingData::verify();
511 }
512 #endif
513
514 print_statistics();
515
516 { MutexLocker ml(BeforeExit_lock);
517 _before_exit_status = BEFORE_EXIT_DONE;
518 BeforeExit_lock->notify_all();
519 }
520
521 if (VerifyStringTableAtExit) {
522 size_t fail_cnt = StringTable::verify_and_compare_entries();
523 if (fail_cnt != 0) {
524 tty->print_cr("ERROR: fail_cnt=%zu", fail_cnt);
525 guarantee(fail_cnt == 0, "unexpected StringTable verification failures");
526 }
527 }
528
529 #undef BEFORE_EXIT_NOT_RUN
530 #undef BEFORE_EXIT_RUNNING
531 #undef BEFORE_EXIT_DONE
532 }
533
534 void vm_exit(int code) {
535 Thread* thread =
536 ThreadLocalStorage::is_initialized() ? Thread::current_or_null() : nullptr;
537 if (thread == nullptr) {
538 // very early initialization failure -- just exit
539 vm_direct_exit(code);
540 }
541
542 // We'd like to add an entry to the XML log to show that the VM is
543 // terminating, but we can't safely do that here. The logic to make
544 // XML termination logging safe is tied to the termination of the
545 // VMThread, and it doesn't terminate on this exit path. See 8222534.
546
547 if (VMThread::vm_thread() != nullptr) {
548 if (thread->is_Java_thread()) {
549 // We must be "in_vm" for the code below to work correctly.
550 // Historically there must have been some exit path for which
551 // that was not the case and so we set it explicitly - even
552 // though we no longer know what that path may be.
553 JavaThread::cast(thread)->set_thread_state(_thread_in_vm);
554 }
555
556 // Fire off a VM_Exit operation to bring VM to a safepoint and exit
557 VM_Exit op(code);
558
559 // 4945125 The vm thread comes to a safepoint during exit.
560 // GC vm_operations can get caught at the safepoint, and the
561 // heap is unparseable if they are caught. Grab the Heap_lock
562 // to prevent this. The GC vm_operations will not be able to
563 // queue until after we release it, but we never do that as we
564 // are terminating the VM process.
565 MutexLocker ml(Heap_lock);
566
567 VMThread::execute(&op);
568 // should never reach here; but in case something wrong with VM Thread.
569 vm_direct_exit(code);
570 } else {
571 // VM thread is gone, just exit
572 vm_direct_exit(code);
573 }
574 ShouldNotReachHere();
575 }
576
577 void notify_vm_shutdown() {
578 // For now, just a dtrace probe.
579 HOTSPOT_VM_SHUTDOWN();
580 }
581
582 void vm_direct_exit(int code) {
583 notify_vm_shutdown();
584 os::wait_for_keypress_at_exit();
585 os::exit(code);
586 }
587
588 void vm_direct_exit(int code, const char* message) {
589 if (message != nullptr) {
590 tty->print_cr("%s", message);
591 }
592 vm_direct_exit(code);
593 }
594
595 static void vm_perform_shutdown_actions() {
596 if (is_init_completed()) {
597 Thread* thread = Thread::current_or_null();
598 if (thread != nullptr && thread->is_Java_thread()) {
599 // We are leaving the VM, set state to native (in case any OS exit
600 // handlers call back to the VM)
601 JavaThread* jt = JavaThread::cast(thread);
602 // Must always be walkable or have no last_Java_frame when in
603 // thread_in_native
604 jt->frame_anchor()->make_walkable();
605 jt->set_thread_state(_thread_in_native);
606 }
607 }
608 notify_vm_shutdown();
609 }
610
611 void vm_shutdown()
612 {
613 vm_perform_shutdown_actions();
614 os::wait_for_keypress_at_exit();
615 os::shutdown();
616 }
617
618 void vm_abort(bool dump_core) {
619 vm_perform_shutdown_actions();
620 os::wait_for_keypress_at_exit();
621
622 // Flush stdout and stderr before abort.
623 fflush(stdout);
624 fflush(stderr);
625
626 os::abort(dump_core);
627 ShouldNotReachHere();
628 }
629
630 static void vm_notify_during_cds_dumping(const char* error, const char* message) {
631 if (error != nullptr) {
632 tty->print_cr("Error occurred during CDS dumping");
633 tty->print("%s", error);
634 if (message != nullptr) {
635 tty->print_cr(": %s", message);
636 }
637 else {
638 tty->cr();
639 }
640 }
641 }
642
643 void vm_exit_during_cds_dumping(const char* error, const char* message) {
644 vm_notify_during_cds_dumping(error, message);
645
646 // Failure during CDS dumping, we don't want to dump core
647 vm_abort(false);
648 }
649
650 static void vm_notify_during_shutdown(const char* error, const char* message) {
651 if (error != nullptr) {
652 tty->print_cr("Error occurred during initialization of VM");
653 tty->print("%s", error);
654 if (message != nullptr) {
655 tty->print_cr(": %s", message);
656 }
657 else {
658 tty->cr();
659 }
660 }
661 if (ShowMessageBoxOnError && WizardMode) {
662 fatal("Error occurred during initialization of VM");
663 }
664 }
665
666 void vm_exit_during_initialization() {
667 vm_notify_during_shutdown(nullptr, nullptr);
668
669 // Failure during initialization, we don't want to dump core
670 vm_abort(false);
671 }
672
673 void vm_exit_during_initialization(Handle exception) {
674 tty->print_cr("Error occurred during initialization of VM");
675 // If there are exceptions on this thread it must be cleared
676 // first and here. Any future calls to EXCEPTION_MARK requires
677 // that no pending exceptions exist.
678 JavaThread* THREAD = JavaThread::current(); // can't be null
679 if (HAS_PENDING_EXCEPTION) {
680 CLEAR_PENDING_EXCEPTION;
681 }
682 java_lang_Throwable::print_stack_trace(exception, tty);
683 tty->cr();
684 vm_notify_during_shutdown(nullptr, nullptr);
685
686 // Failure during initialization, we don't want to dump core
687 vm_abort(false);
688 }
689
690 void vm_exit_during_initialization(Symbol* ex, const char* message) {
691 ResourceMark rm;
692 vm_notify_during_shutdown(ex->as_C_string(), message);
693
694 // Failure during initialization, we don't want to dump core
695 vm_abort(false);
696 }
697
698 void vm_exit_during_initialization(const char* error, const char* message) {
699 vm_notify_during_shutdown(error, message);
700
701 // Failure during initialization, we don't want to dump core
702 vm_abort(false);
703 }
704
705 void vm_shutdown_during_initialization(const char* error, const char* message) {
706 vm_notify_during_shutdown(error, message);
707 vm_shutdown();
708 }
709
710 JDK_Version JDK_Version::_current;
711 const char* JDK_Version::_java_version;
712 const char* JDK_Version::_runtime_name;
713 const char* JDK_Version::_runtime_version;
714 const char* JDK_Version::_runtime_vendor_version;
715 const char* JDK_Version::_runtime_vendor_vm_bug_url;
716
717 void JDK_Version::initialize() {
718 assert(!_current.is_valid(), "Don't initialize twice");
719
720 int major = VM_Version::vm_major_version();
721 int minor = VM_Version::vm_minor_version();
722 int security = VM_Version::vm_security_version();
723 int build = VM_Version::vm_build_number();
724 int patch = VM_Version::vm_patch_version();
725 _current = JDK_Version(major, minor, security, patch, build);
726 }
727
728 void JDK_Version_init() {
729 JDK_Version::initialize();
730 }
731
732 static int64_t encode_jdk_version(const JDK_Version& v) {
733 return
734 ((int64_t)v.major_version() << (BitsPerByte * 4)) |
735 ((int64_t)v.minor_version() << (BitsPerByte * 3)) |
736 ((int64_t)v.security_version() << (BitsPerByte * 2)) |
737 ((int64_t)v.patch_version() << (BitsPerByte * 1)) |
738 ((int64_t)v.build_number() << (BitsPerByte * 0));
739 }
740
741 int JDK_Version::compare(const JDK_Version& other) const {
742 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)");
743 uint64_t e = encode_jdk_version(*this);
744 uint64_t o = encode_jdk_version(other);
745 return (e > o) ? 1 : ((e == o) ? 0 : -1);
746 }
747
748 /* See JEP 223 */
749 void JDK_Version::to_string(char* buffer, size_t buflen) const {
750 assert(buffer && buflen > 0, "call with useful buffer");
751 size_t index = 0;
752
753 if (!is_valid()) {
754 jio_snprintf(buffer, buflen, "%s", "(uninitialized)");
755 } else {
756 int rc = jio_snprintf(
757 &buffer[index], buflen - index, "%d.%d", _major, _minor);
758 if (rc == -1) return;
759 index += rc;
760 if (_patch > 0) {
761 rc = jio_snprintf(&buffer[index], buflen - index, ".%d.%d", _security, _patch);
762 if (rc == -1) return;
763 index += rc;
764 } else if (_security > 0) {
765 rc = jio_snprintf(&buffer[index], buflen - index, ".%d", _security);
766 if (rc == -1) return;
767 index += rc;
768 }
769 if (_build > 0) {
770 rc = jio_snprintf(&buffer[index], buflen - index, "+%d", _build);
771 if (rc == -1) return;
772 index += rc;
773 }
774 }
775 }