duke@435: /*
sla@5237:  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #include "precompiled.hpp"
stefank@2314: #include "classfile/classLoader.hpp"
stefank@2314: #include "classfile/symbolTable.hpp"
stefank@2314: #include "classfile/systemDictionary.hpp"
stefank@2314: #include "code/codeCache.hpp"
stefank@2314: #include "compiler/compileBroker.hpp"
stefank@2314: #include "compiler/compilerOracle.hpp"
stefank@2314: #include "interpreter/bytecodeHistogram.hpp"
stefank@2314: #include "memory/genCollectedHeap.hpp"
stefank@2314: #include "memory/oopFactory.hpp"
stefank@2314: #include "memory/universe.hpp"
coleenp@4037: #include "oops/constantPool.hpp"
stefank@2314: #include "oops/generateOopMap.hpp"
stefank@2314: #include "oops/instanceKlass.hpp"
stefank@2314: #include "oops/instanceOop.hpp"
coleenp@4037: #include "oops/method.hpp"
stefank@2314: #include "oops/objArrayOop.hpp"
stefank@2314: #include "oops/oop.inline.hpp"
coleenp@2497: #include "oops/symbol.hpp"
stefank@2314: #include "prims/jvmtiExport.hpp"
stefank@2314: #include "runtime/arguments.hpp"
stefank@2314: #include "runtime/biasedLocking.hpp"
stefank@2314: #include "runtime/compilationPolicy.hpp"
stefank@2314: #include "runtime/fprofiler.hpp"
stefank@2314: #include "runtime/init.hpp"
stefank@2314: #include "runtime/interfaceSupport.hpp"
stefank@2314: #include "runtime/java.hpp"
stefank@2314: #include "runtime/memprofiler.hpp"
stefank@2314: #include "runtime/sharedRuntime.hpp"
stefank@2314: #include "runtime/statSampler.hpp"
stefank@2314: #include "runtime/task.hpp"
stefank@4299: #include "runtime/thread.inline.hpp"
stefank@2314: #include "runtime/timer.hpp"
stefank@2314: #include "runtime/vm_operations.hpp"
zgu@4081: #include "services/memReporter.hpp"
zgu@4081: #include "services/memTracker.hpp"
phh@3427: #include "trace/tracing.hpp"
stefank@2314: #include "utilities/dtrace.hpp"
stefank@2314: #include "utilities/globalDefinitions.hpp"
stefank@2314: #include "utilities/histogram.hpp"
jprovino@4542: #include "utilities/macros.hpp"
stefank@2314: #include "utilities/vmError.hpp"
stefank@2314: #ifdef TARGET_ARCH_x86
stefank@2314: # include "vm_version_x86.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_ARCH_sparc
stefank@2314: # include "vm_version_sparc.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_ARCH_zero
stefank@2314: # include "vm_version_zero.hpp"
stefank@2314: #endif
bobv@2508: #ifdef TARGET_ARCH_arm
bobv@2508: # include "vm_version_arm.hpp"
bobv@2508: #endif
bobv@2508: #ifdef TARGET_ARCH_ppc
bobv@2508: # include "vm_version_ppc.hpp"
bobv@2508: #endif
jprovino@4542: #if INCLUDE_ALL_GCS
stefank@2314: #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp"
stefank@2314: #include "gc_implementation/parallelScavenge/psScavenge.hpp"
stefank@2314: #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
jprovino@4542: #endif // INCLUDE_ALL_GCS
stefank@2314: #ifdef COMPILER1
stefank@2314: #include "c1/c1_Compiler.hpp"
stefank@2314: #include "c1/c1_Runtime1.hpp"
stefank@2314: #endif
stefank@2314: #ifdef COMPILER2
stefank@2314: #include "code/compiledIC.hpp"
stefank@2314: #include "compiler/methodLiveness.hpp"
stefank@2314: #include "opto/compile.hpp"
stefank@2314: #include "opto/indexSet.hpp"
stefank@2314: #include "opto/runtime.hpp"
stefank@2314: #endif
duke@435: 
dcubed@3202: #ifndef USDT2
duke@435: HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown);
dcubed@3202: #endif /* !USDT2 */
duke@435: 
duke@435: #ifndef PRODUCT
duke@435: 
duke@435: // Statistics printing (method invocation histogram)
duke@435: 
coleenp@4037: GrowableArray<Method*>* collected_invoked_methods;
duke@435: 
coleenp@4037: void collect_invoked_methods(Method* m) {
duke@435:   if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) {
duke@435:     collected_invoked_methods->push(m);
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
coleenp@4037: GrowableArray<Method*>* collected_profiled_methods;
duke@435: 
coleenp@4037: void collect_profiled_methods(Method* m) {
coleenp@4037:   Thread* thread = Thread::current();
coleenp@4037:   // This HandleMark prevents a huge amount of handles from being added
coleenp@4037:   // to the metadata_handles() array on the thread.
coleenp@4037:   HandleMark hm(thread);
coleenp@4037:   methodHandle mh(thread, m);
duke@435:   if ((m->method_data() != NULL) &&
duke@435:       (PrintMethodData || CompilerOracle::should_print(mh))) {
duke@435:     collected_profiled_methods->push(m);
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
coleenp@4037: int compare_methods(Method** a, Method** b) {
duke@435:   // %%% there can be 32-bit overflow here
duke@435:   return ((*b)->invocation_count() + (*b)->compiled_invocation_count())
duke@435:        - ((*a)->invocation_count() + (*a)->compiled_invocation_count());
duke@435: }
duke@435: 
duke@435: 
duke@435: void print_method_invocation_histogram() {
duke@435:   ResourceMark rm;
duke@435:   HandleMark hm;
coleenp@4037:   collected_invoked_methods = new GrowableArray<Method*>(1024);
duke@435:   SystemDictionary::methods_do(collect_invoked_methods);
duke@435:   collected_invoked_methods->sort(&compare_methods);
duke@435:   //
duke@435:   tty->cr();
duke@435:   tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff);
duke@435:   tty->cr();
duke@435:   tty->print_cr("____Count_(I+C)____Method________________________Module_________________");
duke@435:   unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0,
duke@435:       synch_total = 0, nativ_total = 0, acces_total = 0;
duke@435:   for (int index = 0; index < collected_invoked_methods->length(); index++) {
coleenp@4037:     Method* m = collected_invoked_methods->at(index);
duke@435:     int c = m->invocation_count() + m->compiled_invocation_count();
duke@435:     if (c >= MethodHistogramCutoff) m->print_invocation_count();
duke@435:     int_total  += m->invocation_count();
duke@435:     comp_total += m->compiled_invocation_count();
duke@435:     if (m->is_final())        final_total  += c;
duke@435:     if (m->is_static())       static_total += c;
duke@435:     if (m->is_synchronized()) synch_total  += c;
duke@435:     if (m->is_native())       nativ_total  += c;
duke@435:     if (m->is_accessor())     acces_total  += c;
duke@435:   }
duke@435:   tty->cr();
duke@435:   total = int_total + comp_total;
duke@435:   tty->print_cr("Invocations summary:");
duke@435:   tty->print_cr("\t%9d (%4.1f%%) interpreted",  int_total,    100.0 * int_total    / total);
duke@435:   tty->print_cr("\t%9d (%4.1f%%) compiled",     comp_total,   100.0 * comp_total   / total);
duke@435:   tty->print_cr("\t%9d (100%%)  total",         total);
duke@435:   tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total,  100.0 * synch_total  / total);
duke@435:   tty->print_cr("\t%9d (%4.1f%%) final",        final_total,  100.0 * final_total  / total);
duke@435:   tty->print_cr("\t%9d (%4.1f%%) static",       static_total, 100.0 * static_total / total);
duke@435:   tty->print_cr("\t%9d (%4.1f%%) native",       nativ_total,  100.0 * nativ_total  / total);
duke@435:   tty->print_cr("\t%9d (%4.1f%%) accessor",     acces_total,  100.0 * acces_total  / total);
duke@435:   tty->cr();
duke@435:   SharedRuntime::print_call_statistics(comp_total);
duke@435: }
duke@435: 
duke@435: void print_method_profiling_data() {
duke@435:   ResourceMark rm;
duke@435:   HandleMark hm;
coleenp@4037:   collected_profiled_methods = new GrowableArray<Method*>(1024);
duke@435:   SystemDictionary::methods_do(collect_profiled_methods);
duke@435:   collected_profiled_methods->sort(&compare_methods);
duke@435: 
duke@435:   int count = collected_profiled_methods->length();
duke@435:   if (count > 0) {
duke@435:     for (int index = 0; index < count; index++) {
coleenp@4037:       Method* m = collected_profiled_methods->at(index);
duke@435:       ttyLocker ttyl;
duke@435:       tty->print_cr("------------------------------------------------------------------------");
duke@435:       //m->print_name(tty);
duke@435:       m->print_invocation_count();
duke@435:       tty->cr();
duke@435:       m->print_codes();
duke@435:     }
duke@435:     tty->print_cr("------------------------------------------------------------------------");
duke@435:   }
duke@435: }
duke@435: 
duke@435: void print_bytecode_count() {
duke@435:   if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
duke@435:     tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value());
duke@435:   }
duke@435: }
duke@435: 
duke@435: AllocStats alloc_stats;
duke@435: 
duke@435: 
duke@435: 
duke@435: // General statistics printing (profiling ...)
duke@435: 
duke@435: void print_statistics() {
duke@435: 
duke@435: #ifdef ASSERT
duke@435: 
duke@435:   if (CountRuntimeCalls) {
duke@435:     extern Histogram *RuntimeHistogram;
duke@435:     RuntimeHistogram->print();
duke@435:   }
duke@435: 
duke@435:   if (CountJNICalls) {
duke@435:     extern Histogram *JNIHistogram;
duke@435:     JNIHistogram->print();
duke@435:   }
duke@435: 
duke@435:   if (CountJVMCalls) {
duke@435:     extern Histogram *JVMHistogram;
duke@435:     JVMHistogram->print();
duke@435:   }
duke@435: 
duke@435: #endif
duke@435: 
duke@435:   if (MemProfiling) {
duke@435:     MemProfiler::disengage();
duke@435:   }
duke@435: 
duke@435:   if (CITime) {
duke@435:     CompileBroker::print_times();
duke@435:   }
duke@435: 
duke@435: #ifdef COMPILER1
duke@435:   if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) {
duke@435:     FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics);
duke@435:     Runtime1::print_statistics();
duke@435:     Deoptimization::print_statistics();
never@3039:     SharedRuntime::print_statistics();
duke@435:     nmethod::print_statistics();
duke@435:   }
duke@435: #endif /* COMPILER1 */
duke@435: 
duke@435: #ifdef COMPILER2
duke@435:   if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) {
duke@435:     FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics);
duke@435:     Compile::print_statistics();
duke@435: #ifndef COMPILER1
duke@435:     Deoptimization::print_statistics();
duke@435:     nmethod::print_statistics();
never@3039:     SharedRuntime::print_statistics();
duke@435: #endif //COMPILER1
duke@435:     os::print_statistics();
duke@435:   }
duke@435: 
duke@435:   if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics) {
duke@435:     OptoRuntime::print_named_counters();
duke@435:   }
duke@435: 
duke@435:   if (TimeLivenessAnalysis) {
duke@435:     MethodLiveness::print_times();
duke@435:   }
duke@435: #ifdef ASSERT
duke@435:   if (CollectIndexSetStatistics) {
duke@435:     IndexSet::print_statistics();
duke@435:   }
duke@435: #endif // ASSERT
duke@435: #endif // COMPILER2
duke@435:   if (CountCompiledCalls) {
duke@435:     print_method_invocation_histogram();
duke@435:   }
iveresov@2273:   if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) {
duke@435:     print_method_profiling_data();
duke@435:   }
duke@435:   if (TimeCompiler) {
duke@435:     COMPILER2_PRESENT(Compile::print_timers();)
duke@435:   }
duke@435:   if (TimeCompilationPolicy) {
duke@435:     CompilationPolicy::policy()->print_time();
duke@435:   }
duke@435:   if (TimeOopMap) {
duke@435:     GenerateOopMap::print_time();
duke@435:   }
duke@435:   if (ProfilerCheckIntervals) {
duke@435:     PeriodicTask::print_intervals();
duke@435:   }
duke@435:   if (PrintSymbolTableSizeHistogram) {
duke@435:     SymbolTable::print_histogram();
duke@435:   }
duke@435:   if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
duke@435:     BytecodeCounter::print();
duke@435:   }
duke@435:   if (PrintBytecodePairHistogram) {
duke@435:     BytecodePairHistogram::print();
duke@435:   }
duke@435: 
duke@435:   if (PrintCodeCache) {
duke@435:     MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
duke@435:     CodeCache::print();
duke@435:   }
duke@435: 
duke@435:   if (PrintCodeCache2) {
duke@435:     MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
duke@435:     CodeCache::print_internals();
duke@435:   }
duke@435: 
duke@435:   if (PrintClassStatistics) {
duke@435:     SystemDictionary::print_class_statistics();
duke@435:   }
duke@435:   if (PrintMethodStatistics) {
duke@435:     SystemDictionary::print_method_statistics();
duke@435:   }
duke@435: 
duke@435:   if (PrintVtableStats) {
duke@435:     klassVtable::print_statistics();
duke@435:     klassItable::print_statistics();
duke@435:   }
duke@435:   if (VerifyOops) {
duke@435:     tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count());
duke@435:   }
duke@435: 
duke@435:   print_bytecode_count();
kvn@2557:   if (PrintMallocStatistics) {
duke@435:     tty->print("allocation stats: ");
duke@435:     alloc_stats.print();
duke@435:     tty->cr();
duke@435:   }
duke@435: 
duke@435:   if (PrintSystemDictionaryAtExit) {
duke@435:     SystemDictionary::print();
duke@435:   }
duke@435: 
duke@435:   if (PrintBiasedLockingStatistics) {
duke@435:     BiasedLocking::print_counters();
duke@435:   }
duke@435: 
duke@435: #ifdef ENABLE_ZAP_DEAD_LOCALS
duke@435: #ifdef COMPILER2
duke@435:   if (ZapDeadCompiledLocals) {
duke@435:     tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count);
duke@435:     tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count);
duke@435:   }
duke@435: #endif // COMPILER2
duke@435: #endif // ENABLE_ZAP_DEAD_LOCALS
zgu@4081:   // Native memory tracking data
zgu@4081:   if (PrintNMTStatistics) {
zgu@4081:     if (MemTracker::is_on()) {
zgu@4081:       BaselineTTYOutputer outputer(tty);
zgu@4081:       MemTracker::print_memory_usage(outputer, K, false);
zgu@4081:     } else {
zgu@4081:       tty->print_cr(MemTracker::reason());
zgu@4081:     }
zgu@4081:   }
duke@435: }
duke@435: 
duke@435: #else // PRODUCT MODE STATISTICS
duke@435: 
duke@435: void print_statistics() {
duke@435: 
duke@435:   if (CITime) {
duke@435:     CompileBroker::print_times();
duke@435:   }
vladidan@4438: 
vladidan@4438:   if (PrintCodeCache) {
vladidan@4438:     MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
vladidan@4438:     CodeCache::print();
vladidan@4438:   }
vladidan@4438: 
duke@435: #ifdef COMPILER2
duke@435:   if (PrintPreciseBiasedLockingStatistics) {
duke@435:     OptoRuntime::print_named_counters();
duke@435:   }
duke@435: #endif
duke@435:   if (PrintBiasedLockingStatistics) {
duke@435:     BiasedLocking::print_counters();
duke@435:   }
zgu@4081: 
zgu@4081:   // Native memory tracking data
zgu@4081:   if (PrintNMTStatistics) {
zgu@4081:     if (MemTracker::is_on()) {
zgu@4081:       BaselineTTYOutputer outputer(tty);
zgu@4081:       MemTracker::print_memory_usage(outputer, K, false);
zgu@4081:     } else {
zgu@4081:       tty->print_cr(MemTracker::reason());
zgu@4081:     }
zgu@4081:   }
duke@435: }
duke@435: 
duke@435: #endif
duke@435: 
duke@435: 
duke@435: // Helper class for registering on_exit calls through JVM_OnExit
duke@435: 
duke@435: extern "C" {
duke@435:     typedef void (*__exit_proc)(void);
duke@435: }
duke@435: 
zgu@3900: class ExitProc : public CHeapObj<mtInternal> {
duke@435:  private:
duke@435:   __exit_proc _proc;
duke@435:   // void (*_proc)(void);
duke@435:   ExitProc* _next;
duke@435:  public:
duke@435:   // ExitProc(void (*proc)(void)) {
duke@435:   ExitProc(__exit_proc proc) {
duke@435:     _proc = proc;
duke@435:     _next = NULL;
duke@435:   }
duke@435:   void evaluate()               { _proc(); }
duke@435:   ExitProc* next() const        { return _next; }
duke@435:   void set_next(ExitProc* next) { _next = next; }
duke@435: };
duke@435: 
duke@435: 
duke@435: // Linked list of registered on_exit procedures
duke@435: 
duke@435: static ExitProc* exit_procs = NULL;
duke@435: 
duke@435: 
duke@435: extern "C" {
duke@435:   void register_on_exit_function(void (*func)(void)) {
duke@435:     ExitProc *entry = new ExitProc(func);
duke@435:     // Classic vm does not throw an exception in case the allocation failed,
duke@435:     if (entry != NULL) {
duke@435:       entry->set_next(exit_procs);
duke@435:       exit_procs = entry;
duke@435:     }
duke@435:   }
duke@435: }
duke@435: 
duke@435: // Note: before_exit() can be executed only once, if more than one threads
duke@435: //       are trying to shutdown the VM at the same time, only one thread
duke@435: //       can run before_exit() and all other threads must wait.
duke@435: void before_exit(JavaThread * thread) {
duke@435:   #define BEFORE_EXIT_NOT_RUN 0
duke@435:   #define BEFORE_EXIT_RUNNING 1
duke@435:   #define BEFORE_EXIT_DONE    2
duke@435:   static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN;
duke@435: 
duke@435:   // Note: don't use a Mutex to guard the entire before_exit(), as
duke@435:   // JVMTI post_thread_end_event and post_vm_death_event will run native code.
duke@435:   // A CAS or OSMutex would work just fine but then we need to manipulate
duke@435:   // thread state for Safepoint. Here we use Monitor wait() and notify_all()
duke@435:   // for synchronization.
duke@435:   { MutexLocker ml(BeforeExit_lock);
duke@435:     switch (_before_exit_status) {
duke@435:     case BEFORE_EXIT_NOT_RUN:
duke@435:       _before_exit_status = BEFORE_EXIT_RUNNING;
duke@435:       break;
duke@435:     case BEFORE_EXIT_RUNNING:
duke@435:       while (_before_exit_status == BEFORE_EXIT_RUNNING) {
duke@435:         BeforeExit_lock->wait();
duke@435:       }
duke@435:       assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state");
duke@435:       return;
duke@435:     case BEFORE_EXIT_DONE:
duke@435:       return;
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   // The only difference between this and Win32's _onexit procs is that
duke@435:   // this version is invoked before any threads get killed.
duke@435:   ExitProc* current = exit_procs;
duke@435:   while (current != NULL) {
duke@435:     ExitProc* next = current->next();
duke@435:     current->evaluate();
duke@435:     delete current;
duke@435:     current = next;
duke@435:   }
duke@435: 
duke@435:   // Hang forever on exit if we're reporting an error.
duke@435:   if (ShowMessageBoxOnError && is_error_reported()) {
duke@435:     os::infinite_sleep();
duke@435:   }
duke@435: 
duke@435:   // Terminate watcher thread - must before disenrolling any periodic task
bobv@2036:   if (PeriodicTask::num_tasks() > 0)
bobv@2036:     WatcherThread::stop();
duke@435: 
duke@435:   // Print statistics gathered (profiling ...)
duke@435:   if (Arguments::has_profile()) {
duke@435:     FlatProfiler::disengage();
duke@435:     FlatProfiler::print(10);
duke@435:   }
duke@435: 
duke@435:   // shut down the StatSampler task
duke@435:   StatSampler::disengage();
duke@435:   StatSampler::destroy();
duke@435: 
ysr@2966:   // We do not need to explicitly stop concurrent GC threads because the
ysr@2966:   // JVM will be taken down at a safepoint when such threads are inactive --
ysr@2966:   // except for some concurrent G1 threads, see (comment in)
ysr@2966:   // Threads::destroy_vm().
duke@435: 
duke@435:   // Print GC/heap related information.
duke@435:   if (PrintGCDetails) {
duke@435:     Universe::print();
duke@435:     AdaptiveSizePolicyOutput(0);
coleenp@4037:     if (Verbose) {
coleenp@4037:       ClassLoaderDataGraph::dump_on(gclog_or_tty);
coleenp@4037:     }
duke@435:   }
duke@435: 
duke@435:   if (PrintBytecodeHistogram) {
duke@435:     BytecodeHistogram::print();
duke@435:   }
duke@435: 
duke@435:   if (JvmtiExport::should_post_thread_life()) {
duke@435:     JvmtiExport::post_thread_end(thread);
duke@435:   }
phh@3427: 
sla@5237: 
sla@5237:   EventThreadEnd event;
sla@5237:   if (event.should_commit()) {
sla@5237:       event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));
sla@5237:       event.commit();
sla@5237:   }
phh@3427: 
duke@435:   // Always call even when there are not JVMTI environments yet, since environments
duke@435:   // may be attached late and JVMTI must track phases of VM execution
duke@435:   JvmtiExport::post_vm_death();
duke@435:   Threads::shutdown_vm_agents();
duke@435: 
duke@435:   // Terminate the signal thread
duke@435:   // Note: we don't wait until it actually dies.
duke@435:   os::terminate_signal_thread();
duke@435: 
duke@435:   print_statistics();
duke@435:   Universe::heap()->print_tracing_info();
duke@435: 
duke@435:   { MutexLocker ml(BeforeExit_lock);
duke@435:     _before_exit_status = BEFORE_EXIT_DONE;
duke@435:     BeforeExit_lock->notify_all();
duke@435:   }
duke@435: 
zgu@4428:   // Shutdown NMT before exit. Otherwise,
zgu@4428:   // it will run into trouble when system destroys static variables.
zgu@4428:   MemTracker::shutdown(MemTracker::NMT_normal);
zgu@4428: 
dcubed@5743:   if (VerifyStringTableAtExit) {
dcubed@5743:     int fail_cnt = 0;
dcubed@5743:     {
dcubed@5743:       MutexLocker ml(StringTable_lock);
dcubed@5743:       fail_cnt = StringTable::verify_and_compare_entries();
dcubed@5743:     }
dcubed@5743: 
dcubed@5743:     if (fail_cnt != 0) {
dcubed@5743:       tty->print_cr("ERROR: fail_cnt=%d", fail_cnt);
dcubed@5743:       guarantee(fail_cnt == 0, "unexpected StringTable verification failures");
dcubed@5743:     }
dcubed@5743:   }
dcubed@5743: 
duke@435:   #undef BEFORE_EXIT_NOT_RUN
duke@435:   #undef BEFORE_EXIT_RUNNING
duke@435:   #undef BEFORE_EXIT_DONE
duke@435: }
duke@435: 
duke@435: void vm_exit(int code) {
coleenp@2419:   Thread* thread = ThreadLocalStorage::is_initialized() ?
coleenp@2419:     ThreadLocalStorage::get_thread_slow() : NULL;
duke@435:   if (thread == NULL) {
duke@435:     // we have serious problems -- just exit
duke@435:     vm_direct_exit(code);
duke@435:   }
duke@435: 
duke@435:   if (VMThread::vm_thread() != NULL) {
duke@435:     // Fire off a VM_Exit operation to bring VM to a safepoint and exit
duke@435:     VM_Exit op(code);
duke@435:     if (thread->is_Java_thread())
duke@435:       ((JavaThread*)thread)->set_thread_state(_thread_in_vm);
duke@435:     VMThread::execute(&op);
duke@435:     // should never reach here; but in case something wrong with VM Thread.
duke@435:     vm_direct_exit(code);
duke@435:   } else {
duke@435:     // VM thread is gone, just exit
duke@435:     vm_direct_exit(code);
duke@435:   }
duke@435:   ShouldNotReachHere();
duke@435: }
duke@435: 
duke@435: void notify_vm_shutdown() {
duke@435:   // For now, just a dtrace probe.
dcubed@3202: #ifndef USDT2
duke@435:   HS_DTRACE_PROBE(hotspot, vm__shutdown);
jcoomes@1902:   HS_DTRACE_WORKAROUND_TAIL_CALL_BUG();
dcubed@3202: #else /* USDT2 */
dcubed@3202:   HOTSPOT_VM_SHUTDOWN();
dcubed@3202: #endif /* USDT2 */
duke@435: }
duke@435: 
duke@435: void vm_direct_exit(int code) {
duke@435:   notify_vm_shutdown();
sla@2584:   os::wait_for_keypress_at_exit();
duke@435:   ::exit(code);
duke@435: }
duke@435: 
duke@435: void vm_perform_shutdown_actions() {
duke@435:   // Warning: do not call 'exit_globals()' here. All threads are still running.
duke@435:   // Calling 'exit_globals()' will disable thread-local-storage and cause all
duke@435:   // kinds of assertions to trigger in debug mode.
duke@435:   if (is_init_completed()) {
coleenp@2419:     Thread* thread = ThreadLocalStorage::is_initialized() ?
coleenp@2419:                      ThreadLocalStorage::get_thread_slow() : NULL;
coleenp@2419:     if (thread != NULL && thread->is_Java_thread()) {
duke@435:       // We are leaving the VM, set state to native (in case any OS exit
duke@435:       // handlers call back to the VM)
duke@435:       JavaThread* jt = (JavaThread*)thread;
duke@435:       // Must always be walkable or have no last_Java_frame when in
duke@435:       // thread_in_native
duke@435:       jt->frame_anchor()->make_walkable(jt);
duke@435:       jt->set_thread_state(_thread_in_native);
duke@435:     }
duke@435:   }
duke@435:   notify_vm_shutdown();
duke@435: }
duke@435: 
duke@435: void vm_shutdown()
duke@435: {
duke@435:   vm_perform_shutdown_actions();
sla@2584:   os::wait_for_keypress_at_exit();
duke@435:   os::shutdown();
duke@435: }
duke@435: 
poonam@662: void vm_abort(bool dump_core) {
duke@435:   vm_perform_shutdown_actions();
sla@2584:   os::wait_for_keypress_at_exit();
poonam@662:   os::abort(dump_core);
duke@435:   ShouldNotReachHere();
duke@435: }
duke@435: 
duke@435: void vm_notify_during_shutdown(const char* error, const char* message) {
duke@435:   if (error != NULL) {
duke@435:     tty->print_cr("Error occurred during initialization of VM");
duke@435:     tty->print("%s", error);
duke@435:     if (message != NULL) {
duke@435:       tty->print_cr(": %s", message);
duke@435:     }
duke@435:     else {
duke@435:       tty->cr();
duke@435:     }
duke@435:   }
duke@435:   if (ShowMessageBoxOnError && WizardMode) {
duke@435:     fatal("Error occurred during initialization of VM");
duke@435:   }
duke@435: }
duke@435: 
duke@435: void vm_exit_during_initialization(Handle exception) {
duke@435:   tty->print_cr("Error occurred during initialization of VM");
duke@435:   // If there are exceptions on this thread it must be cleared
duke@435:   // first and here. Any future calls to EXCEPTION_MARK requires
duke@435:   // that no pending exceptions exist.
duke@435:   Thread *THREAD = Thread::current();
duke@435:   if (HAS_PENDING_EXCEPTION) {
duke@435:     CLEAR_PENDING_EXCEPTION;
duke@435:   }
duke@435:   java_lang_Throwable::print(exception, tty);
duke@435:   tty->cr();
duke@435:   java_lang_Throwable::print_stack_trace(exception(), tty);
duke@435:   tty->cr();
duke@435:   vm_notify_during_shutdown(NULL, NULL);
poonam@662: 
poonam@662:   // Failure during initialization, we don't want to dump core
poonam@662:   vm_abort(false);
duke@435: }
duke@435: 
coleenp@2497: void vm_exit_during_initialization(Symbol* ex, const char* message) {
duke@435:   ResourceMark rm;
duke@435:   vm_notify_during_shutdown(ex->as_C_string(), message);
poonam@662: 
poonam@662:   // Failure during initialization, we don't want to dump core
poonam@662:   vm_abort(false);
duke@435: }
duke@435: 
duke@435: void vm_exit_during_initialization(const char* error, const char* message) {
duke@435:   vm_notify_during_shutdown(error, message);
poonam@662: 
poonam@662:   // Failure during initialization, we don't want to dump core
poonam@662:   vm_abort(false);
duke@435: }
duke@435: 
duke@435: void vm_shutdown_during_initialization(const char* error, const char* message) {
duke@435:   vm_notify_during_shutdown(error, message);
duke@435:   vm_shutdown();
duke@435: }
duke@435: 
kamg@677: JDK_Version JDK_Version::_current;
twisti@3884: const char* JDK_Version::_runtime_name;
sla@4232: const char* JDK_Version::_runtime_version;
duke@435: 
duke@435: void JDK_Version::initialize() {
kamg@677:   jdk_version_info info;
kamg@677:   assert(!_current.is_valid(), "Don't initialize twice");
kamg@677: 
duke@435:   void *lib_handle = os::native_java_library();
kamg@677:   jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t,
kamg@677:      os::dll_lookup(lib_handle, "JDK_GetVersionInfo0"));
duke@435: 
duke@435:   if (func == NULL) {
duke@435:     // JDK older than 1.6
kamg@677:     _current._partially_initialized = true;
kamg@677:   } else {
kamg@677:     (*func)(&info, sizeof(info));
kamg@677: 
kamg@677:     int major = JDK_VERSION_MAJOR(info.jdk_version);
kamg@677:     int minor = JDK_VERSION_MINOR(info.jdk_version);
kamg@677:     int micro = JDK_VERSION_MICRO(info.jdk_version);
kamg@677:     int build = JDK_VERSION_BUILD(info.jdk_version);
kamg@677:     if (major == 1 && minor > 4) {
kamg@677:       // We represent "1.5.0" as "5.0", but 1.4.2 as itself.
kamg@677:       major = minor;
kamg@677:       minor = micro;
kamg@677:       micro = 0;
kamg@677:     }
kamg@677:     _current = JDK_Version(major, minor, micro, info.update_version,
kamg@677:                            info.special_update_version, build,
kevinw@2449:                            info.thread_park_blocker == 1,
ysr@3117:                            info.post_vm_init_hook_enabled == 1,
ysr@3117:                            info.pending_list_uses_discovered_field == 1);
duke@435:   }
kamg@677: }
duke@435: 
kamg@677: void JDK_Version::fully_initialize(
kamg@677:     uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) {
kamg@677:   // This is only called when current is less than 1.6 and we've gotten
kamg@677:   // far enough in the initialization to determine the exact version.
kamg@677:   assert(major < 6, "not needed for JDK version >= 6");
kamg@677:   assert(is_partially_initialized(), "must not initialize");
kamg@677:   if (major < 5) {
kamg@677:     // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc.
kamg@677:     micro = minor;
kamg@677:     minor = major;
kamg@677:     major = 1;
duke@435:   }
kamg@677:   _current = JDK_Version(major, minor, micro, update);
duke@435: }
duke@435: 
duke@435: void JDK_Version_init() {
duke@435:   JDK_Version::initialize();
duke@435: }
kamg@677: 
kamg@677: static int64_t encode_jdk_version(const JDK_Version& v) {
kamg@677:   return
kamg@677:     ((int64_t)v.major_version()          << (BitsPerByte * 5)) |
kamg@677:     ((int64_t)v.minor_version()          << (BitsPerByte * 4)) |
kamg@677:     ((int64_t)v.micro_version()          << (BitsPerByte * 3)) |
kamg@677:     ((int64_t)v.update_version()         << (BitsPerByte * 2)) |
kamg@677:     ((int64_t)v.special_update_version() << (BitsPerByte * 1)) |
kamg@677:     ((int64_t)v.build_number()           << (BitsPerByte * 0));
kamg@677: }
kamg@677: 
kamg@677: int JDK_Version::compare(const JDK_Version& other) const {
kamg@677:   assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)");
kamg@677:   if (!is_partially_initialized() && other.is_partially_initialized()) {
kamg@677:     return -(other.compare(*this)); // flip the comparators
kamg@677:   }
kamg@677:   assert(!other.is_partially_initialized(), "Not initialized yet");
kamg@677:   if (is_partially_initialized()) {
kamg@677:     assert(other.major_version() >= 6,
kamg@677:            "Invalid JDK version comparison during initialization");
kamg@677:     return -1;
kamg@677:   } else {
kamg@677:     uint64_t e = encode_jdk_version(*this);
kamg@677:     uint64_t o = encode_jdk_version(other);
kamg@677:     return (e > o) ? 1 : ((e == o) ? 0 : -1);
kamg@677:   }
kamg@677: }
kamg@677: 
kamg@677: void JDK_Version::to_string(char* buffer, size_t buflen) const {
kamg@677:   size_t index = 0;
kamg@677:   if (!is_valid()) {
kamg@677:     jio_snprintf(buffer, buflen, "%s", "(uninitialized)");
kamg@677:   } else if (is_partially_initialized()) {
kamg@677:     jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0");
kamg@677:   } else {
kamg@677:     index += jio_snprintf(
kamg@677:         &buffer[index], buflen - index, "%d.%d", _major, _minor);
kamg@677:     if (_micro > 0) {
kamg@677:       index += jio_snprintf(&buffer[index], buflen - index, ".%d", _micro);
kamg@677:     }
kamg@677:     if (_update > 0) {
kamg@677:       index += jio_snprintf(&buffer[index], buflen - index, "_%02d", _update);
kamg@677:     }
kamg@677:     if (_special > 0) {
kamg@677:       index += jio_snprintf(&buffer[index], buflen - index, "%c", _special);
kamg@677:     }
kamg@677:     if (_build > 0) {
kamg@677:       index += jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build);
kamg@677:     }
kamg@677:   }
kamg@677: }