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