1 /*
2 * Copyright (c) 1997, 2024, 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 "precompiled.hpp"
26 #include "cds/cds_globals.hpp"
27 #include "cds/classListWriter.hpp"
28 #include "cds/dynamicArchive.hpp"
29 #include "classfile/classLoader.hpp"
30 #include "classfile/classLoaderDataGraph.hpp"
31 #include "classfile/javaClasses.hpp"
32 #include "classfile/stringTable.hpp"
33 #include "classfile/symbolTable.hpp"
34 #include "classfile/systemDictionary.hpp"
35 #include "code/codeCache.hpp"
36 #include "compiler/compilationMemoryStatistic.hpp"
37 #include "compiler/compileBroker.hpp"
38 #include "compiler/compilerOracle.hpp"
39 #include "gc/shared/collectedHeap.hpp"
40 #include "gc/shared/stringdedup/stringDedup.hpp"
41 #include "interpreter/bytecodeHistogram.hpp"
42 #include "jfr/jfrEvents.hpp"
43 #include "jfr/support/jfrThreadId.hpp"
44 #include "jvm.h"
45 #include "logging/log.hpp"
46 #include "logging/logStream.hpp"
47 #include "memory/metaspaceUtils.hpp"
48 #include "memory/oopFactory.hpp"
49 #include "memory/resourceArea.hpp"
50 #include "memory/universe.hpp"
51 #include "nmt/memMapPrinter.hpp"
52 #include "nmt/memTracker.hpp"
53 #include "oops/constantPool.hpp"
54 #include "oops/generateOopMap.hpp"
55 #include "oops/instanceKlass.hpp"
56 #include "oops/instanceOop.hpp"
57 #include "oops/klassVtable.hpp"
58 #include "oops/method.hpp"
59 #include "oops/objArrayOop.hpp"
60 #include "oops/oop.inline.hpp"
61 #include "oops/symbol.hpp"
62 #include "prims/jvmtiAgentList.hpp"
63 #include "prims/jvmtiExport.hpp"
64 #include "runtime/continuation.hpp"
65 #include "runtime/deoptimization.hpp"
66 #include "runtime/flags/flagSetting.hpp"
67 #include "runtime/handles.inline.hpp"
68 #include "runtime/init.hpp"
69 #include "runtime/interfaceSupport.inline.hpp"
70 #include "runtime/java.hpp"
71 #include "runtime/javaThread.hpp"
72 #include "runtime/sharedRuntime.hpp"
73 #include "runtime/statSampler.hpp"
74 #include "runtime/stubRoutines.hpp"
75 #include "runtime/task.hpp"
76 #include "runtime/threads.hpp"
77 #include "runtime/timer.hpp"
78 #include "runtime/trimNativeHeap.hpp"
79 #include "runtime/vmOperations.hpp"
80 #include "runtime/vmThread.hpp"
81 #include "runtime/vm_version.hpp"
82 #include "sanitizers/leak.hpp"
83 #include "utilities/dtrace.hpp"
84 #include "utilities/events.hpp"
85 #include "utilities/globalDefinitions.hpp"
86 #include "utilities/macros.hpp"
87 #include "utilities/vmError.hpp"
88 #ifdef COMPILER1
89 #include "c1/c1_Compiler.hpp"
90 #include "c1/c1_Runtime1.hpp"
91 #endif
92 #ifdef COMPILER2
93 #include "code/compiledIC.hpp"
94 #include "opto/compile.hpp"
95 #include "opto/indexSet.hpp"
96 #include "opto/runtime.hpp"
97 #endif
98 #if INCLUDE_JFR
99 #include "jfr/jfr.hpp"
100 #endif
101 #if INCLUDE_JVMCI
102 #include "jvmci/jvmci.hpp"
103 #endif
104
105 GrowableArray<Method*>* collected_profiled_methods;
106
107 static int compare_methods(Method** a, Method** b) {
108 // compiled_invocation_count() returns int64_t, forcing the entire expression
109 // to be evaluated as int64_t. Overflow is not an issue.
110 int64_t diff = (((*b)->invocation_count() + (*b)->compiled_invocation_count())
111 - ((*a)->invocation_count() + (*a)->compiled_invocation_count()));
112 return (diff < 0) ? -1 : (diff > 0) ? 1 : 0;
113 }
114
115 static void collect_profiled_methods(Method* m) {
116 Thread* thread = Thread::current();
117 methodHandle mh(thread, m);
118 if ((m->method_data() != nullptr) &&
119 (PrintMethodData || CompilerOracle::should_print(mh))) {
120 collected_profiled_methods->push(m);
121 }
122 }
123
124 static void print_method_profiling_data() {
125 if ((ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) &&
126 (PrintMethodData || CompilerOracle::should_print_methods())) {
127 ResourceMark rm;
128 collected_profiled_methods = new GrowableArray<Method*>(1024);
129 SystemDictionary::methods_do(collect_profiled_methods);
130 collected_profiled_methods->sort(&compare_methods);
131
132 int count = collected_profiled_methods->length();
133 int total_size = 0;
134 if (count > 0) {
135 for (int index = 0; index < count; index++) {
136 Method* m = collected_profiled_methods->at(index);
137
138 // Instead of taking tty lock, we collect all lines into a string stream
139 // and then print them all at once.
140 ResourceMark rm2;
141 stringStream ss;
142
143 ss.print_cr("------------------------------------------------------------------------");
144 m->print_invocation_count(&ss);
145 ss.print_cr(" mdo size: %d bytes", m->method_data()->size_in_bytes());
146 ss.cr();
147 // Dump data on parameters if any
148 if (m->method_data() != nullptr && m->method_data()->parameters_type_data() != nullptr) {
149 ss.fill_to(2);
150 m->method_data()->parameters_type_data()->print_data_on(&ss);
151 }
152 m->print_codes_on(&ss);
153 tty->print("%s", ss.as_string()); // print all at once
154 total_size += m->method_data()->size_in_bytes();
155 }
156 tty->print_cr("------------------------------------------------------------------------");
157 tty->print_cr("Total MDO size: %d bytes", total_size);
158 }
159 }
160 }
161
162 #ifndef PRODUCT
163
164 // Statistics printing (method invocation histogram)
165
166 GrowableArray<Method*>* collected_invoked_methods;
167
168 static void collect_invoked_methods(Method* m) {
169 if (m->invocation_count() + m->compiled_invocation_count() >= 1) {
170 collected_invoked_methods->push(m);
171 }
172 }
173
174
175 // Invocation count accumulators should be unsigned long to shift the
176 // overflow border. Longer-running workloads tend to create invocation
177 // counts which already overflow 32-bit counters for individual methods.
178 static void print_method_invocation_histogram() {
179 ResourceMark rm;
180 collected_invoked_methods = new GrowableArray<Method*>(1024);
181 SystemDictionary::methods_do(collect_invoked_methods);
182 collected_invoked_methods->sort(&compare_methods);
183 //
184 tty->cr();
185 tty->print_cr("Histogram Over Method Invocation Counters (cutoff = " INTX_FORMAT "):", MethodHistogramCutoff);
186 tty->cr();
187 tty->print_cr("____Count_(I+C)____Method________________________Module_________________");
188 uint64_t total = 0,
189 int_total = 0,
190 comp_total = 0,
191 special_total= 0,
192 static_total = 0,
193 final_total = 0,
194 synch_total = 0,
195 native_total = 0,
196 access_total = 0;
197 for (int index = 0; index < collected_invoked_methods->length(); index++) {
198 // Counter values returned from getter methods are signed int.
199 // To shift the overflow border by a factor of two, we interpret
200 // them here as unsigned long. A counter can't be negative anyway.
201 Method* m = collected_invoked_methods->at(index);
202 uint64_t iic = (uint64_t)m->invocation_count();
203 uint64_t cic = (uint64_t)m->compiled_invocation_count();
204 if ((iic + cic) >= (uint64_t)MethodHistogramCutoff) m->print_invocation_count(tty);
205 int_total += iic;
206 comp_total += cic;
207 if (m->is_final()) final_total += iic + cic;
208 if (m->is_static()) static_total += iic + cic;
209 if (m->is_synchronized()) synch_total += iic + cic;
210 if (m->is_native()) native_total += iic + cic;
211 if (m->is_accessor()) access_total += iic + cic;
212 }
213 tty->cr();
214 total = int_total + comp_total;
215 special_total = final_total + static_total +synch_total + native_total + access_total;
216 tty->print_cr("Invocations summary for %d methods:", collected_invoked_methods->length());
217 double total_div = (double)total;
218 tty->print_cr("\t" UINT64_FORMAT_W(12) " (100%%) total", total);
219 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- interpreted", int_total, 100.0 * (double)int_total / total_div);
220 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- compiled", comp_total, 100.0 * (double)comp_total / total_div);
221 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- special methods (interpreted and compiled)",
222 special_total, 100.0 * (double)special_total/ total_div);
223 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- synchronized",synch_total, 100.0 * (double)synch_total / total_div);
224 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- final", final_total, 100.0 * (double)final_total / total_div);
225 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- static", static_total, 100.0 * (double)static_total / total_div);
226 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- native", native_total, 100.0 * (double)native_total / total_div);
227 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- accessor", access_total, 100.0 * (double)access_total / total_div);
228 tty->cr();
229 SharedRuntime::print_call_statistics(comp_total);
230 }
231
232 static void print_bytecode_count() {
233 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
234 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value());
235 }
236 }
237
238 #else
239
240 static void print_method_invocation_histogram() {}
241 static void print_bytecode_count() {}
242
243 #endif // PRODUCT
244
245
246 // General statistics printing (profiling ...)
247 void print_statistics() {
248 if (CITime) {
249 CompileBroker::print_times();
250 }
251
252 #ifdef COMPILER1
253 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) {
254 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics);
255 Runtime1::print_statistics();
256 SharedRuntime::print_statistics();
257 }
258 #endif /* COMPILER1 */
259
260 #ifdef COMPILER2
261 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) {
262 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics);
263 Compile::print_statistics();
264 Deoptimization::print_statistics();
265 #ifndef COMPILER1
266 SharedRuntime::print_statistics();
267 #endif //COMPILER1
268 }
269
270 if (PrintLockStatistics) {
271 OptoRuntime::print_named_counters();
272 }
273 #ifdef ASSERT
274 if (CollectIndexSetStatistics) {
275 IndexSet::print_statistics();
276 }
277 #endif // ASSERT
278 #else // COMPILER2
279 #if INCLUDE_JVMCI
280 #ifndef COMPILER1
281 if ((TraceDeoptimization || LogVMOutput || LogCompilation) && UseCompiler) {
282 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && TraceDeoptimization);
283 Deoptimization::print_statistics();
284 SharedRuntime::print_statistics();
285 }
286 #endif // COMPILER1
287 #endif // INCLUDE_JVMCI
288 #endif // COMPILER2
289
290 if (PrintNMethodStatistics) {
291 nmethod::print_statistics();
292 }
293 if (CountCompiledCalls) {
294 print_method_invocation_histogram();
295 }
296
297 print_method_profiling_data();
298
299 if (TimeOopMap) {
300 GenerateOopMap::print_time();
301 }
302 if (PrintSymbolTableSizeHistogram) {
303 SymbolTable::print_histogram();
304 }
305 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
306 BytecodeCounter::print();
307 }
308 if (PrintBytecodePairHistogram) {
309 BytecodePairHistogram::print();
310 }
311
312 if (PrintCodeCache) {
313 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
314 CodeCache::print();
315 }
316
317 // CodeHeap State Analytics.
318 if (PrintCodeHeapAnalytics) {
319 CompileBroker::print_heapinfo(nullptr, "all", 4096); // details
320 }
321
322 #ifndef PRODUCT
323 if (PrintCodeCache2) {
324 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
325 CodeCache::print_internals();
326 }
327 #endif
328
329 if (VerifyOops && Verbose) {
330 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count());
331 }
332
333 print_bytecode_count();
334
335 if (PrintSystemDictionaryAtExit) {
336 ResourceMark rm;
337 MutexLocker mcld(ClassLoaderDataGraph_lock);
338 SystemDictionary::print();
339 }
340
341 if (PrintClassLoaderDataGraphAtExit) {
342 ResourceMark rm;
343 MutexLocker mcld(ClassLoaderDataGraph_lock);
344 ClassLoaderDataGraph::print();
345 }
346
347 // Native memory tracking data
348 if (PrintNMTStatistics) {
349 MemTracker::final_report(tty);
350 }
351
352 if (PrintMetaspaceStatisticsAtExit) {
353 MetaspaceUtils::print_basic_report(tty, 0);
354 }
355
356 if (CompilerOracle::should_print_final_memstat_report()) {
357 CompilationMemoryStatistic::print_all_by_size(tty, false, 0);
358 }
359
360 ThreadsSMRSupport::log_statistics();
361
362 ClassLoader::print_counters(tty);
363 }
364
365 // Note: before_exit() can be executed only once, if more than one threads
366 // are trying to shutdown the VM at the same time, only one thread
367 // can run before_exit() and all other threads must wait.
368 void before_exit(JavaThread* thread, bool halt) {
369 #define BEFORE_EXIT_NOT_RUN 0
370 #define BEFORE_EXIT_RUNNING 1
371 #define BEFORE_EXIT_DONE 2
372 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN;
373
374 Events::log(thread, "Before exit entered");
375
376 // Note: don't use a Mutex to guard the entire before_exit(), as
377 // JVMTI post_thread_end_event and post_vm_death_event will run native code.
378 // A CAS or OSMutex would work just fine but then we need to manipulate
379 // thread state for Safepoint. Here we use Monitor wait() and notify_all()
380 // for synchronization.
381 { MonitorLocker ml(BeforeExit_lock);
382 switch (_before_exit_status) {
383 case BEFORE_EXIT_NOT_RUN:
384 _before_exit_status = BEFORE_EXIT_RUNNING;
385 break;
386 case BEFORE_EXIT_RUNNING:
387 while (_before_exit_status == BEFORE_EXIT_RUNNING) {
388 ml.wait();
389 }
390 assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state");
391 return;
392 case BEFORE_EXIT_DONE:
393 // need block to avoid SS compiler bug
394 {
395 return;
396 }
397 }
398 }
399
400 // At this point only one thread is executing this logic. Any other threads
401 // attempting to invoke before_exit() will wait above and return early once
402 // this thread finishes before_exit().
403
404 // Do not add any additional shutdown logic between the above mutex logic and
405 // leak sanitizer logic below. Any additional shutdown code which performs some
406 // cleanup should be added after the leak sanitizer logic below.
407
408 #ifdef LEAK_SANITIZER
409 // If we are built with LSan, we need to perform leak checking. If we are
410 // terminating normally, not halting and no VM error, we perform a normal
411 // leak check which terminates if leaks are found. If we are not terminating
412 // normally, halting or VM error, we perform a recoverable leak check which
413 // prints leaks but will not terminate.
414 if (!halt && !VMError::is_error_reported()) {
415 LSAN_DO_LEAK_CHECK();
416 } else {
417 // Ignore the return value.
418 static_cast<void>(LSAN_DO_RECOVERABLE_LEAK_CHECK());
419 }
420 #endif
421
422 #if INCLUDE_CDS
423 // Dynamic CDS dumping must happen whilst we can still reliably
424 // run Java code.
425 DynamicArchive::dump_at_exit(thread, ArchiveClassesAtExit);
426 assert(!thread->has_pending_exception(), "must be");
427 #endif
428
429
430 // Actual shutdown logic begins here.
431
432 #if INCLUDE_JVMCI
433 if (EnableJVMCI) {
434 JVMCI::shutdown(thread);
435 }
436 #endif
437
438 #if INCLUDE_CDS
439 ClassListWriter::write_resolved_constants();
440 #endif
441
442 // Hang forever on exit if we're reporting an error.
443 if (ShowMessageBoxOnError && VMError::is_error_reported()) {
444 os::infinite_sleep();
445 }
446
447 EventThreadEnd event;
448 if (event.should_commit()) {
449 event.set_thread(JFR_JVM_THREAD_ID(thread));
450 event.commit();
451 }
452
453 JFR_ONLY(Jfr::on_vm_shutdown(false, halt);)
454
455 // Stop the WatcherThread. We do this before disenrolling various
456 // PeriodicTasks to reduce the likelihood of races.
457 WatcherThread::stop();
458
459 // shut down the StatSampler task
460 StatSampler::disengage();
461 StatSampler::destroy();
462
463 NativeHeapTrimmer::cleanup();
464
465 // Stop concurrent GC threads
466 Universe::heap()->stop();
467
468 // Print GC/heap related information.
469 Log(gc, heap, exit) log;
470 if (log.is_info()) {
471 ResourceMark rm;
472 LogStream ls_info(log.info());
473 Universe::print_on(&ls_info);
474 if (log.is_trace()) {
475 LogStream ls_trace(log.trace());
476 MutexLocker mcld(ClassLoaderDataGraph_lock);
477 ClassLoaderDataGraph::print_on(&ls_trace);
478 }
479 }
480
481 if (PrintBytecodeHistogram) {
482 BytecodeHistogram::print();
483 }
484
485 #ifdef LINUX
486 if (DumpPerfMapAtExit) {
487 CodeCache::write_perf_map(nullptr, tty);
488 }
489 if (PrintMemoryMapAtExit) {
490 MemMapPrinter::print_all_mappings(tty);
491 }
492 #endif
493
494 if (JvmtiExport::should_post_thread_life()) {
495 JvmtiExport::post_thread_end(thread);
496 }
497
498 // Always call even when there are not JVMTI environments yet, since environments
499 // may be attached late and JVMTI must track phases of VM execution
500 JvmtiExport::post_vm_death();
501 JvmtiAgentList::unload_agents();
502
503 // Terminate the signal thread
504 // Note: we don't wait until it actually dies.
505 os::terminate_signal_thread();
506
507 print_statistics();
508 Universe::heap()->print_tracing_info();
509
510 { MutexLocker ml(BeforeExit_lock);
511 _before_exit_status = BEFORE_EXIT_DONE;
512 BeforeExit_lock->notify_all();
513 }
514
515 if (VerifyStringTableAtExit) {
516 size_t fail_cnt = StringTable::verify_and_compare_entries();
517 if (fail_cnt != 0) {
518 tty->print_cr("ERROR: fail_cnt=" SIZE_FORMAT, fail_cnt);
519 guarantee(fail_cnt == 0, "unexpected StringTable verification failures");
520 }
521 }
522
523 #undef BEFORE_EXIT_NOT_RUN
524 #undef BEFORE_EXIT_RUNNING
525 #undef BEFORE_EXIT_DONE
526 }
527
528 void vm_exit(int code) {
529 Thread* thread =
530 ThreadLocalStorage::is_initialized() ? Thread::current_or_null() : nullptr;
531 if (thread == nullptr) {
532 // very early initialization failure -- just exit
533 vm_direct_exit(code);
534 }
535
536 // We'd like to add an entry to the XML log to show that the VM is
537 // terminating, but we can't safely do that here. The logic to make
538 // XML termination logging safe is tied to the termination of the
539 // VMThread, and it doesn't terminate on this exit path. See 8222534.
540
541 if (VMThread::vm_thread() != nullptr) {
542 if (thread->is_Java_thread()) {
543 // We must be "in_vm" for the code below to work correctly.
544 // Historically there must have been some exit path for which
545 // that was not the case and so we set it explicitly - even
546 // though we no longer know what that path may be.
547 JavaThread::cast(thread)->set_thread_state(_thread_in_vm);
548 }
549
550 // Fire off a VM_Exit operation to bring VM to a safepoint and exit
551 VM_Exit op(code);
552
553 // 4945125 The vm thread comes to a safepoint during exit.
554 // GC vm_operations can get caught at the safepoint, and the
555 // heap is unparseable if they are caught. Grab the Heap_lock
556 // to prevent this. The GC vm_operations will not be able to
557 // queue until after we release it, but we never do that as we
558 // are terminating the VM process.
559 MutexLocker ml(Heap_lock);
560
561 VMThread::execute(&op);
562 // should never reach here; but in case something wrong with VM Thread.
563 vm_direct_exit(code);
564 } else {
565 // VM thread is gone, just exit
566 vm_direct_exit(code);
567 }
568 ShouldNotReachHere();
569 }
570
571 void notify_vm_shutdown() {
572 // For now, just a dtrace probe.
573 HOTSPOT_VM_SHUTDOWN();
574 }
575
576 void vm_direct_exit(int code) {
577 notify_vm_shutdown();
578 os::wait_for_keypress_at_exit();
579 os::exit(code);
580 }
581
582 void vm_direct_exit(int code, const char* message) {
583 if (message != nullptr) {
584 tty->print_cr("%s", message);
585 }
586 vm_direct_exit(code);
587 }
588
589 static void vm_perform_shutdown_actions() {
590 if (is_init_completed()) {
591 Thread* thread = Thread::current_or_null();
592 if (thread != nullptr && thread->is_Java_thread()) {
593 // We are leaving the VM, set state to native (in case any OS exit
594 // handlers call back to the VM)
595 JavaThread* jt = JavaThread::cast(thread);
596 // Must always be walkable or have no last_Java_frame when in
597 // thread_in_native
598 jt->frame_anchor()->make_walkable();
599 jt->set_thread_state(_thread_in_native);
600 }
601 }
602 notify_vm_shutdown();
603 }
604
605 void vm_shutdown()
606 {
607 vm_perform_shutdown_actions();
608 os::wait_for_keypress_at_exit();
609 os::shutdown();
610 }
611
612 void vm_abort(bool dump_core) {
613 vm_perform_shutdown_actions();
614 os::wait_for_keypress_at_exit();
615
616 // Flush stdout and stderr before abort.
617 fflush(stdout);
618 fflush(stderr);
619
620 os::abort(dump_core);
621 ShouldNotReachHere();
622 }
623
624 static void vm_notify_during_cds_dumping(const char* error, const char* message) {
625 if (error != nullptr) {
626 tty->print_cr("Error occurred during CDS dumping");
627 tty->print("%s", error);
628 if (message != nullptr) {
629 tty->print_cr(": %s", message);
630 }
631 else {
632 tty->cr();
633 }
634 }
635 }
636
637 void vm_exit_during_cds_dumping(const char* error, const char* message) {
638 vm_notify_during_cds_dumping(error, message);
639
640 // Failure during CDS dumping, we don't want to dump core
641 vm_abort(false);
642 }
643
644 static void vm_notify_during_shutdown(const char* error, const char* message) {
645 if (error != nullptr) {
646 tty->print_cr("Error occurred during initialization of VM");
647 tty->print("%s", error);
648 if (message != nullptr) {
649 tty->print_cr(": %s", message);
650 }
651 else {
652 tty->cr();
653 }
654 }
655 if (ShowMessageBoxOnError && WizardMode) {
656 fatal("Error occurred during initialization of VM");
657 }
658 }
659
660 void vm_exit_during_initialization() {
661 vm_notify_during_shutdown(nullptr, nullptr);
662
663 // Failure during initialization, we don't want to dump core
664 vm_abort(false);
665 }
666
667 void vm_exit_during_initialization(Handle exception) {
668 tty->print_cr("Error occurred during initialization of VM");
669 // If there are exceptions on this thread it must be cleared
670 // first and here. Any future calls to EXCEPTION_MARK requires
671 // that no pending exceptions exist.
672 JavaThread* THREAD = JavaThread::current(); // can't be null
673 if (HAS_PENDING_EXCEPTION) {
674 CLEAR_PENDING_EXCEPTION;
675 }
676 java_lang_Throwable::print_stack_trace(exception, tty);
677 tty->cr();
678 vm_notify_during_shutdown(nullptr, nullptr);
679
680 // Failure during initialization, we don't want to dump core
681 vm_abort(false);
682 }
683
684 void vm_exit_during_initialization(Symbol* ex, const char* message) {
685 ResourceMark rm;
686 vm_notify_during_shutdown(ex->as_C_string(), message);
687
688 // Failure during initialization, we don't want to dump core
689 vm_abort(false);
690 }
691
692 void vm_exit_during_initialization(const char* error, const char* message) {
693 vm_notify_during_shutdown(error, message);
694
695 // Failure during initialization, we don't want to dump core
696 vm_abort(false);
697 }
698
699 void vm_shutdown_during_initialization(const char* error, const char* message) {
700 vm_notify_during_shutdown(error, message);
701 vm_shutdown();
702 }
703
704 JDK_Version JDK_Version::_current;
705 const char* JDK_Version::_java_version;
706 const char* JDK_Version::_runtime_name;
707 const char* JDK_Version::_runtime_version;
708 const char* JDK_Version::_runtime_vendor_version;
709 const char* JDK_Version::_runtime_vendor_vm_bug_url;
710
711 void JDK_Version::initialize() {
712 assert(!_current.is_valid(), "Don't initialize twice");
713
714 int major = VM_Version::vm_major_version();
715 int minor = VM_Version::vm_minor_version();
716 int security = VM_Version::vm_security_version();
717 int build = VM_Version::vm_build_number();
718 int patch = VM_Version::vm_patch_version();
719 _current = JDK_Version(major, minor, security, patch, build);
720 }
721
722 void JDK_Version_init() {
723 JDK_Version::initialize();
724 }
725
726 static int64_t encode_jdk_version(const JDK_Version& v) {
727 return
728 ((int64_t)v.major_version() << (BitsPerByte * 4)) |
729 ((int64_t)v.minor_version() << (BitsPerByte * 3)) |
730 ((int64_t)v.security_version() << (BitsPerByte * 2)) |
731 ((int64_t)v.patch_version() << (BitsPerByte * 1)) |
732 ((int64_t)v.build_number() << (BitsPerByte * 0));
733 }
734
735 int JDK_Version::compare(const JDK_Version& other) const {
736 assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)");
737 uint64_t e = encode_jdk_version(*this);
738 uint64_t o = encode_jdk_version(other);
739 return (e > o) ? 1 : ((e == o) ? 0 : -1);
740 }
741
742 /* See JEP 223 */
743 void JDK_Version::to_string(char* buffer, size_t buflen) const {
744 assert(buffer && buflen > 0, "call with useful buffer");
745 size_t index = 0;
746
747 if (!is_valid()) {
748 jio_snprintf(buffer, buflen, "%s", "(uninitialized)");
749 } else {
750 int rc = jio_snprintf(
751 &buffer[index], buflen - index, "%d.%d", _major, _minor);
752 if (rc == -1) return;
753 index += rc;
754 if (_patch > 0) {
755 rc = jio_snprintf(&buffer[index], buflen - index, ".%d.%d", _security, _patch);
756 if (rc == -1) return;
757 index += rc;
758 } else if (_security > 0) {
759 rc = jio_snprintf(&buffer[index], buflen - index, ".%d", _security);
760 if (rc == -1) return;
761 index += rc;
762 }
763 if (_build > 0) {
764 rc = jio_snprintf(&buffer[index], buflen - index, "+%d", _build);
765 if (rc == -1) return;
766 index += rc;
767 }
768 }
769 }