aoqi@0: /*
shshahma@8584:  * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@1: /*
aoqi@1:  * This file has been modified by Loongson Technology in 2015. These
aoqi@1:  * modifications are Copyright (c) 2015 Loongson Technology, and are made
aoqi@1:  * available on the same license terms set forth above.
aoqi@1:  */
aoqi@1: 
aoqi@0: #include "precompiled.hpp"
aoqi@0: #include "classfile/classLoader.hpp"
aoqi@0: #include "classfile/symbolTable.hpp"
aoqi@0: #include "classfile/systemDictionary.hpp"
aoqi@0: #include "code/codeCache.hpp"
aoqi@0: #include "compiler/compileBroker.hpp"
aoqi@0: #include "compiler/compilerOracle.hpp"
aoqi@0: #include "interpreter/bytecodeHistogram.hpp"
aoqi@0: #include "memory/genCollectedHeap.hpp"
aoqi@0: #include "memory/oopFactory.hpp"
aoqi@0: #include "memory/universe.hpp"
aoqi@0: #include "oops/constantPool.hpp"
aoqi@0: #include "oops/generateOopMap.hpp"
aoqi@0: #include "oops/instanceKlass.hpp"
aoqi@0: #include "oops/instanceOop.hpp"
aoqi@0: #include "oops/method.hpp"
aoqi@0: #include "oops/objArrayOop.hpp"
aoqi@0: #include "oops/oop.inline.hpp"
aoqi@0: #include "oops/symbol.hpp"
aoqi@0: #include "prims/jvmtiExport.hpp"
aoqi@0: #include "runtime/arguments.hpp"
aoqi@0: #include "runtime/biasedLocking.hpp"
aoqi@0: #include "runtime/compilationPolicy.hpp"
aoqi@0: #include "runtime/fprofiler.hpp"
aoqi@0: #include "runtime/init.hpp"
aoqi@0: #include "runtime/interfaceSupport.hpp"
aoqi@0: #include "runtime/java.hpp"
aoqi@0: #include "runtime/memprofiler.hpp"
aoqi@0: #include "runtime/sharedRuntime.hpp"
aoqi@0: #include "runtime/statSampler.hpp"
aoqi@0: #include "runtime/sweeper.hpp"
aoqi@0: #include "runtime/task.hpp"
aoqi@0: #include "runtime/thread.inline.hpp"
aoqi@0: #include "runtime/timer.hpp"
aoqi@0: #include "runtime/vm_operations.hpp"
aoqi@0: #include "services/memTracker.hpp"
aoqi@0: #include "trace/tracing.hpp"
aoqi@0: #include "utilities/dtrace.hpp"
aoqi@0: #include "utilities/globalDefinitions.hpp"
aoqi@0: #include "utilities/histogram.hpp"
aoqi@0: #include "utilities/macros.hpp"
aoqi@0: #include "utilities/vmError.hpp"
aoqi@0: #ifdef TARGET_ARCH_x86
aoqi@0: # include "vm_version_x86.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_ARCH_sparc
aoqi@0: # include "vm_version_sparc.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_ARCH_zero
aoqi@0: # include "vm_version_zero.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_ARCH_arm
aoqi@0: # include "vm_version_arm.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_ARCH_ppc
aoqi@0: # include "vm_version_ppc.hpp"
aoqi@0: #endif
aoqi@1: #ifdef TARGET_ARCH_mips
aoqi@1: # include "vm_version_mips.hpp"
aoqi@1: #endif
aoqi@0: #if INCLUDE_ALL_GCS
aoqi@0: #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp"
aoqi@0: #include "gc_implementation/parallelScavenge/psScavenge.hpp"
aoqi@0: #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
aoqi@0: #endif // INCLUDE_ALL_GCS
aoqi@0: #ifdef COMPILER1
aoqi@0: #include "c1/c1_Compiler.hpp"
aoqi@0: #include "c1/c1_Runtime1.hpp"
aoqi@0: #endif
aoqi@0: #ifdef COMPILER2
aoqi@0: #include "code/compiledIC.hpp"
aoqi@0: #include "compiler/methodLiveness.hpp"
aoqi@0: #include "opto/compile.hpp"
aoqi@0: #include "opto/indexSet.hpp"
aoqi@0: #include "opto/runtime.hpp"
aoqi@0: #endif
aoqi@0: 
aoqi@0: #ifndef USDT2
aoqi@0: HS_DTRACE_PROBE_DECL(hotspot, vm__shutdown);
aoqi@0: #endif /* !USDT2 */
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0: 
aoqi@0: // Statistics printing (method invocation histogram)
aoqi@0: 
aoqi@0: GrowableArray<Method*>* collected_invoked_methods;
aoqi@0: 
aoqi@0: void collect_invoked_methods(Method* m) {
aoqi@0:   if (m->invocation_count() + m->compiled_invocation_count() >= 1 ) {
aoqi@0:     collected_invoked_methods->push(m);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
aoqi@0: 
aoqi@0: GrowableArray<Method*>* collected_profiled_methods;
aoqi@0: 
aoqi@0: void collect_profiled_methods(Method* m) {
aoqi@0:   Thread* thread = Thread::current();
aoqi@0:   // This HandleMark prevents a huge amount of handles from being added
aoqi@0:   // to the metadata_handles() array on the thread.
aoqi@0:   HandleMark hm(thread);
aoqi@0:   methodHandle mh(thread, m);
aoqi@0:   if ((m->method_data() != NULL) &&
aoqi@0:       (PrintMethodData || CompilerOracle::should_print(mh))) {
aoqi@0:     collected_profiled_methods->push(m);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: int compare_methods(Method** a, Method** b) {
aoqi@0:   // %%% there can be 32-bit overflow here
aoqi@0:   return ((*b)->invocation_count() + (*b)->compiled_invocation_count())
aoqi@0:        - ((*a)->invocation_count() + (*a)->compiled_invocation_count());
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void print_method_invocation_histogram() {
aoqi@0:   ResourceMark rm;
aoqi@0:   HandleMark hm;
aoqi@0:   collected_invoked_methods = new GrowableArray<Method*>(1024);
aoqi@0:   SystemDictionary::methods_do(collect_invoked_methods);
aoqi@0:   collected_invoked_methods->sort(&compare_methods);
aoqi@0:   //
aoqi@0:   tty->cr();
aoqi@0:   tty->print_cr("Histogram Over MethodOop Invocation Counters (cutoff = %d):", MethodHistogramCutoff);
aoqi@0:   tty->cr();
aoqi@0:   tty->print_cr("____Count_(I+C)____Method________________________Module_________________");
aoqi@0:   unsigned total = 0, int_total = 0, comp_total = 0, static_total = 0, final_total = 0,
aoqi@0:       synch_total = 0, nativ_total = 0, acces_total = 0;
aoqi@0:   for (int index = 0; index < collected_invoked_methods->length(); index++) {
aoqi@0:     Method* m = collected_invoked_methods->at(index);
aoqi@0:     int c = m->invocation_count() + m->compiled_invocation_count();
aoqi@0:     if (c >= MethodHistogramCutoff) m->print_invocation_count();
aoqi@0:     int_total  += m->invocation_count();
aoqi@0:     comp_total += m->compiled_invocation_count();
aoqi@0:     if (m->is_final())        final_total  += c;
aoqi@0:     if (m->is_static())       static_total += c;
aoqi@0:     if (m->is_synchronized()) synch_total  += c;
aoqi@0:     if (m->is_native())       nativ_total  += c;
aoqi@0:     if (m->is_accessor())     acces_total  += c;
aoqi@0:   }
aoqi@0:   tty->cr();
aoqi@0:   total = int_total + comp_total;
aoqi@0:   tty->print_cr("Invocations summary:");
aoqi@0:   tty->print_cr("\t%9d (%4.1f%%) interpreted",  int_total,    100.0 * int_total    / total);
aoqi@0:   tty->print_cr("\t%9d (%4.1f%%) compiled",     comp_total,   100.0 * comp_total   / total);
aoqi@0:   tty->print_cr("\t%9d (100%%)  total",         total);
aoqi@0:   tty->print_cr("\t%9d (%4.1f%%) synchronized", synch_total,  100.0 * synch_total  / total);
aoqi@0:   tty->print_cr("\t%9d (%4.1f%%) final",        final_total,  100.0 * final_total  / total);
aoqi@0:   tty->print_cr("\t%9d (%4.1f%%) static",       static_total, 100.0 * static_total / total);
aoqi@0:   tty->print_cr("\t%9d (%4.1f%%) native",       nativ_total,  100.0 * nativ_total  / total);
aoqi@0:   tty->print_cr("\t%9d (%4.1f%%) accessor",     acces_total,  100.0 * acces_total  / total);
aoqi@0:   tty->cr();
aoqi@0:   SharedRuntime::print_call_statistics(comp_total);
aoqi@0: }
aoqi@0: 
aoqi@0: void print_method_profiling_data() {
aoqi@0:   ResourceMark rm;
aoqi@0:   HandleMark hm;
aoqi@0:   collected_profiled_methods = new GrowableArray<Method*>(1024);
aoqi@0:   SystemDictionary::methods_do(collect_profiled_methods);
aoqi@0:   collected_profiled_methods->sort(&compare_methods);
aoqi@0: 
aoqi@0:   int count = collected_profiled_methods->length();
aoqi@0:   int total_size = 0;
aoqi@0:   if (count > 0) {
aoqi@0:     for (int index = 0; index < count; index++) {
aoqi@0:       Method* m = collected_profiled_methods->at(index);
aoqi@0:       ttyLocker ttyl;
aoqi@0:       tty->print_cr("------------------------------------------------------------------------");
aoqi@0:       //m->print_name(tty);
aoqi@0:       m->print_invocation_count();
aoqi@0:       tty->print_cr("  mdo size: %d bytes", m->method_data()->size_in_bytes());
aoqi@0:       tty->cr();
aoqi@0:       // Dump data on parameters if any
aoqi@0:       if (m->method_data() != NULL && m->method_data()->parameters_type_data() != NULL) {
aoqi@0:         tty->fill_to(2);
aoqi@0:         m->method_data()->parameters_type_data()->print_data_on(tty);
aoqi@0:       }
aoqi@0:       m->print_codes();
aoqi@0:       total_size += m->method_data()->size_in_bytes();
aoqi@0:     }
aoqi@0:     tty->print_cr("------------------------------------------------------------------------");
aoqi@0:     tty->print_cr("Total MDO size: %d bytes", total_size);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void print_bytecode_count() {
aoqi@0:   if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
aoqi@0:     tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value());
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: AllocStats alloc_stats;
aoqi@0: 
aoqi@0: 
aoqi@0: 
aoqi@0: // General statistics printing (profiling ...)
aoqi@0: void print_statistics() {
aoqi@0: #ifdef ASSERT
aoqi@0: 
aoqi@0:   if (CountRuntimeCalls) {
aoqi@0:     extern Histogram *RuntimeHistogram;
aoqi@0:     RuntimeHistogram->print();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (CountJNICalls) {
aoqi@0:     extern Histogram *JNIHistogram;
aoqi@0:     JNIHistogram->print();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (CountJVMCalls) {
aoqi@0:     extern Histogram *JVMHistogram;
aoqi@0:     JVMHistogram->print();
aoqi@0:   }
aoqi@0: 
aoqi@0: #endif
aoqi@0: 
aoqi@0:   if (MemProfiling) {
aoqi@0:     MemProfiler::disengage();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (CITime) {
aoqi@0:     CompileBroker::print_times();
aoqi@0:   }
aoqi@0: 
aoqi@0: #ifdef COMPILER1
aoqi@0:   if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) {
aoqi@0:     FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics);
aoqi@0:     Runtime1::print_statistics();
aoqi@0:     Deoptimization::print_statistics();
aoqi@0:     SharedRuntime::print_statistics();
aoqi@0:     nmethod::print_statistics();
aoqi@0:   }
aoqi@0: #endif /* COMPILER1 */
aoqi@0: 
aoqi@0: #ifdef COMPILER2
aoqi@0:   if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) {
aoqi@0:     FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics);
aoqi@0:     Compile::print_statistics();
aoqi@0: #ifndef COMPILER1
aoqi@0:     Deoptimization::print_statistics();
aoqi@0:     nmethod::print_statistics();
aoqi@0:     SharedRuntime::print_statistics();
aoqi@0: #endif //COMPILER1
aoqi@0:     os::print_statistics();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (PrintLockStatistics || PrintPreciseBiasedLockingStatistics || PrintPreciseRTMLockingStatistics) {
aoqi@0:     OptoRuntime::print_named_counters();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (TimeLivenessAnalysis) {
aoqi@0:     MethodLiveness::print_times();
aoqi@0:   }
aoqi@0: #ifdef ASSERT
aoqi@0:   if (CollectIndexSetStatistics) {
aoqi@0:     IndexSet::print_statistics();
aoqi@0:   }
aoqi@0: #endif // ASSERT
aoqi@0: #endif // COMPILER2
aoqi@0:   if (CountCompiledCalls) {
aoqi@0:     print_method_invocation_histogram();
aoqi@0:   }
aoqi@0:   if (ProfileInterpreter COMPILER1_PRESENT(|| C1UpdateMethodData)) {
aoqi@0:     print_method_profiling_data();
aoqi@0:   }
aoqi@0:   if (TimeCompiler) {
aoqi@0:     COMPILER2_PRESENT(Compile::print_timers();)
aoqi@0:   }
aoqi@0:   if (TimeCompilationPolicy) {
aoqi@0:     CompilationPolicy::policy()->print_time();
aoqi@0:   }
aoqi@0:   if (TimeOopMap) {
aoqi@0:     GenerateOopMap::print_time();
aoqi@0:   }
aoqi@0:   if (ProfilerCheckIntervals) {
aoqi@0:     PeriodicTask::print_intervals();
aoqi@0:   }
aoqi@0:   if (PrintSymbolTableSizeHistogram) {
aoqi@0:     SymbolTable::print_histogram();
aoqi@0:   }
aoqi@0:   if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
aoqi@0:     BytecodeCounter::print();
aoqi@0:   }
aoqi@0:   if (PrintBytecodePairHistogram) {
aoqi@0:     BytecodePairHistogram::print();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (PrintCodeCache) {
aoqi@0:     MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
aoqi@0:     CodeCache::print();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (PrintMethodFlushingStatistics) {
aoqi@0:     NMethodSweeper::print();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (PrintCodeCache2) {
aoqi@0:     MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
aoqi@0:     CodeCache::print_internals();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (PrintClassStatistics) {
aoqi@0:     SystemDictionary::print_class_statistics();
aoqi@0:   }
aoqi@0:   if (PrintMethodStatistics) {
aoqi@0:     SystemDictionary::print_method_statistics();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (PrintVtableStats) {
aoqi@0:     klassVtable::print_statistics();
aoqi@0:     klassItable::print_statistics();
aoqi@0:   }
aoqi@0:   if (VerifyOops) {
aoqi@0:     tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count());
aoqi@0:   }
aoqi@0: 
aoqi@0:   print_bytecode_count();
aoqi@0:   if (PrintMallocStatistics) {
aoqi@0:     tty->print("allocation stats: ");
aoqi@0:     alloc_stats.print();
aoqi@0:     tty->cr();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (PrintSystemDictionaryAtExit) {
aoqi@0:     SystemDictionary::print();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (PrintBiasedLockingStatistics) {
aoqi@0:     BiasedLocking::print_counters();
aoqi@0:   }
aoqi@0: 
aoqi@0: #ifdef ENABLE_ZAP_DEAD_LOCALS
aoqi@0: #ifdef COMPILER2
aoqi@0:   if (ZapDeadCompiledLocals) {
aoqi@0:     tty->print_cr("Compile::CompiledZap_count = %d", Compile::CompiledZap_count);
aoqi@0:     tty->print_cr("OptoRuntime::ZapDeadCompiledLocals_count = %d", OptoRuntime::ZapDeadCompiledLocals_count);
aoqi@0:   }
aoqi@0: #endif // COMPILER2
aoqi@0: #endif // ENABLE_ZAP_DEAD_LOCALS
aoqi@0:   // Native memory tracking data
aoqi@0:   if (PrintNMTStatistics) {
zgu@7074:     MemTracker::final_report(tty);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: #else // PRODUCT MODE STATISTICS
aoqi@0: 
aoqi@0: void print_statistics() {
aoqi@0: 
aoqi@0:   if (CITime) {
aoqi@0:     CompileBroker::print_times();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (PrintCodeCache) {
aoqi@0:     MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
aoqi@0:     CodeCache::print();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (PrintMethodFlushingStatistics) {
aoqi@0:     NMethodSweeper::print();
aoqi@0:   }
aoqi@0: 
aoqi@0: #ifdef COMPILER2
aoqi@0:   if (PrintPreciseBiasedLockingStatistics || PrintPreciseRTMLockingStatistics) {
aoqi@0:     OptoRuntime::print_named_counters();
aoqi@0:   }
aoqi@0: #endif
aoqi@0:   if (PrintBiasedLockingStatistics) {
aoqi@0:     BiasedLocking::print_counters();
aoqi@0:   }
aoqi@0: 
aoqi@0:   // Native memory tracking data
aoqi@0:   if (PrintNMTStatistics) {
zgu@7074:     MemTracker::final_report(tty);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: #endif
aoqi@0: 
aoqi@0: 
aoqi@0: // Helper class for registering on_exit calls through JVM_OnExit
aoqi@0: 
aoqi@0: extern "C" {
aoqi@0:     typedef void (*__exit_proc)(void);
aoqi@0: }
aoqi@0: 
aoqi@0: class ExitProc : public CHeapObj<mtInternal> {
aoqi@0:  private:
aoqi@0:   __exit_proc _proc;
aoqi@0:   // void (*_proc)(void);
aoqi@0:   ExitProc* _next;
aoqi@0:  public:
aoqi@0:   // ExitProc(void (*proc)(void)) {
aoqi@0:   ExitProc(__exit_proc proc) {
aoqi@0:     _proc = proc;
aoqi@0:     _next = NULL;
aoqi@0:   }
aoqi@0:   void evaluate()               { _proc(); }
aoqi@0:   ExitProc* next() const        { return _next; }
aoqi@0:   void set_next(ExitProc* next) { _next = next; }
aoqi@0: };
aoqi@0: 
aoqi@0: 
aoqi@0: // Linked list of registered on_exit procedures
aoqi@0: 
aoqi@0: static ExitProc* exit_procs = NULL;
aoqi@0: 
aoqi@0: 
aoqi@0: extern "C" {
aoqi@0:   void register_on_exit_function(void (*func)(void)) {
aoqi@0:     ExitProc *entry = new ExitProc(func);
aoqi@0:     // Classic vm does not throw an exception in case the allocation failed,
aoqi@0:     if (entry != NULL) {
aoqi@0:       entry->set_next(exit_procs);
aoqi@0:       exit_procs = entry;
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: // Note: before_exit() can be executed only once, if more than one threads
aoqi@0: //       are trying to shutdown the VM at the same time, only one thread
aoqi@0: //       can run before_exit() and all other threads must wait.
aoqi@0: void before_exit(JavaThread * thread) {
aoqi@0:   #define BEFORE_EXIT_NOT_RUN 0
aoqi@0:   #define BEFORE_EXIT_RUNNING 1
aoqi@0:   #define BEFORE_EXIT_DONE    2
aoqi@0:   static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN;
aoqi@0: 
aoqi@0:   // Note: don't use a Mutex to guard the entire before_exit(), as
aoqi@0:   // JVMTI post_thread_end_event and post_vm_death_event will run native code.
aoqi@0:   // A CAS or OSMutex would work just fine but then we need to manipulate
aoqi@0:   // thread state for Safepoint. Here we use Monitor wait() and notify_all()
aoqi@0:   // for synchronization.
aoqi@0:   { MutexLocker ml(BeforeExit_lock);
aoqi@0:     switch (_before_exit_status) {
aoqi@0:     case BEFORE_EXIT_NOT_RUN:
aoqi@0:       _before_exit_status = BEFORE_EXIT_RUNNING;
aoqi@0:       break;
aoqi@0:     case BEFORE_EXIT_RUNNING:
aoqi@0:       while (_before_exit_status == BEFORE_EXIT_RUNNING) {
aoqi@0:         BeforeExit_lock->wait();
aoqi@0:       }
aoqi@0:       assert(_before_exit_status == BEFORE_EXIT_DONE, "invalid state");
aoqi@0:       return;
aoqi@0:     case BEFORE_EXIT_DONE:
aoqi@0:       return;
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   // The only difference between this and Win32's _onexit procs is that
aoqi@0:   // this version is invoked before any threads get killed.
aoqi@0:   ExitProc* current = exit_procs;
aoqi@0:   while (current != NULL) {
aoqi@0:     ExitProc* next = current->next();
aoqi@0:     current->evaluate();
aoqi@0:     delete current;
aoqi@0:     current = next;
aoqi@0:   }
aoqi@0: 
aoqi@0:   // Hang forever on exit if we're reporting an error.
aoqi@0:   if (ShowMessageBoxOnError && is_error_reported()) {
aoqi@0:     os::infinite_sleep();
aoqi@0:   }
aoqi@0: 
aoqi@0:   // Terminate watcher thread - must before disenrolling any periodic task
aoqi@0:   if (PeriodicTask::num_tasks() > 0)
aoqi@0:     WatcherThread::stop();
aoqi@0: 
aoqi@0:   // Print statistics gathered (profiling ...)
aoqi@0:   if (Arguments::has_profile()) {
aoqi@0:     FlatProfiler::disengage();
aoqi@0:     FlatProfiler::print(10);
aoqi@0:   }
aoqi@0: 
aoqi@0:   // shut down the StatSampler task
aoqi@0:   StatSampler::disengage();
aoqi@0:   StatSampler::destroy();
aoqi@0: 
aoqi@0:   // Stop concurrent GC threads
aoqi@0:   Universe::heap()->stop();
aoqi@0: 
aoqi@0:   // Print GC/heap related information.
aoqi@0:   if (PrintGCDetails) {
aoqi@0:     Universe::print();
aoqi@0:     AdaptiveSizePolicyOutput(0);
aoqi@0:     if (Verbose) {
aoqi@0:       ClassLoaderDataGraph::dump_on(gclog_or_tty);
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (PrintBytecodeHistogram) {
aoqi@0:     BytecodeHistogram::print();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (JvmtiExport::should_post_thread_life()) {
aoqi@0:     JvmtiExport::post_thread_end(thread);
aoqi@0:   }
aoqi@0: 
aoqi@0: 
aoqi@0:   EventThreadEnd event;
aoqi@0:   if (event.should_commit()) {
aoqi@0:       event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));
aoqi@0:       event.commit();
aoqi@0:   }
aoqi@0: 
aoqi@0:   // Always call even when there are not JVMTI environments yet, since environments
aoqi@0:   // may be attached late and JVMTI must track phases of VM execution
aoqi@0:   JvmtiExport::post_vm_death();
aoqi@0:   Threads::shutdown_vm_agents();
aoqi@0: 
aoqi@0:   // Terminate the signal thread
aoqi@0:   // Note: we don't wait until it actually dies.
aoqi@0:   os::terminate_signal_thread();
aoqi@0: 
aoqi@0:   print_statistics();
aoqi@0:   Universe::heap()->print_tracing_info();
aoqi@0: 
aoqi@0:   { MutexLocker ml(BeforeExit_lock);
aoqi@0:     _before_exit_status = BEFORE_EXIT_DONE;
aoqi@0:     BeforeExit_lock->notify_all();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (VerifyStringTableAtExit) {
aoqi@0:     int fail_cnt = 0;
aoqi@0:     {
aoqi@0:       MutexLocker ml(StringTable_lock);
aoqi@0:       fail_cnt = StringTable::verify_and_compare_entries();
aoqi@0:     }
aoqi@0: 
aoqi@0:     if (fail_cnt != 0) {
aoqi@0:       tty->print_cr("ERROR: fail_cnt=%d", fail_cnt);
aoqi@0:       guarantee(fail_cnt == 0, "unexpected StringTable verification failures");
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   #undef BEFORE_EXIT_NOT_RUN
aoqi@0:   #undef BEFORE_EXIT_RUNNING
aoqi@0:   #undef BEFORE_EXIT_DONE
aoqi@0: }
aoqi@0: 
aoqi@0: void vm_exit(int code) {
aoqi@0:   Thread* thread = ThreadLocalStorage::is_initialized() ?
aoqi@0:     ThreadLocalStorage::get_thread_slow() : NULL;
aoqi@0:   if (thread == NULL) {
aoqi@0:     // we have serious problems -- just exit
aoqi@0:     vm_direct_exit(code);
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (VMThread::vm_thread() != NULL) {
aoqi@0:     // Fire off a VM_Exit operation to bring VM to a safepoint and exit
aoqi@0:     VM_Exit op(code);
aoqi@0:     if (thread->is_Java_thread())
aoqi@0:       ((JavaThread*)thread)->set_thread_state(_thread_in_vm);
aoqi@0:     VMThread::execute(&op);
aoqi@0:     // should never reach here; but in case something wrong with VM Thread.
aoqi@0:     vm_direct_exit(code);
aoqi@0:   } else {
aoqi@0:     // VM thread is gone, just exit
aoqi@0:     vm_direct_exit(code);
aoqi@0:   }
aoqi@0:   ShouldNotReachHere();
aoqi@0: }
aoqi@0: 
aoqi@0: void notify_vm_shutdown() {
aoqi@0:   // For now, just a dtrace probe.
aoqi@0: #ifndef USDT2
aoqi@0:   HS_DTRACE_PROBE(hotspot, vm__shutdown);
aoqi@0:   HS_DTRACE_WORKAROUND_TAIL_CALL_BUG();
aoqi@0: #else /* USDT2 */
aoqi@0:   HOTSPOT_VM_SHUTDOWN();
aoqi@0: #endif /* USDT2 */
aoqi@0: }
aoqi@0: 
aoqi@0: void vm_direct_exit(int code) {
aoqi@0:   notify_vm_shutdown();
aoqi@0:   os::wait_for_keypress_at_exit();
aoqi@0:   ::exit(code);
aoqi@0: }
aoqi@0: 
aoqi@0: void vm_perform_shutdown_actions() {
aoqi@0:   // Warning: do not call 'exit_globals()' here. All threads are still running.
aoqi@0:   // Calling 'exit_globals()' will disable thread-local-storage and cause all
aoqi@0:   // kinds of assertions to trigger in debug mode.
aoqi@0:   if (is_init_completed()) {
aoqi@0:     Thread* thread = ThreadLocalStorage::is_initialized() ?
aoqi@0:                      ThreadLocalStorage::get_thread_slow() : NULL;
aoqi@0:     if (thread != NULL && thread->is_Java_thread()) {
aoqi@0:       // We are leaving the VM, set state to native (in case any OS exit
aoqi@0:       // handlers call back to the VM)
aoqi@0:       JavaThread* jt = (JavaThread*)thread;
aoqi@0:       // Must always be walkable or have no last_Java_frame when in
aoqi@0:       // thread_in_native
aoqi@0:       jt->frame_anchor()->make_walkable(jt);
aoqi@0:       jt->set_thread_state(_thread_in_native);
aoqi@0:     }
aoqi@0:   }
aoqi@0:   notify_vm_shutdown();
aoqi@0: }
aoqi@0: 
aoqi@0: void vm_shutdown()
aoqi@0: {
aoqi@0:   vm_perform_shutdown_actions();
aoqi@0:   os::wait_for_keypress_at_exit();
aoqi@0:   os::shutdown();
aoqi@0: }
aoqi@0: 
aoqi@0: void vm_abort(bool dump_core) {
aoqi@0:   vm_perform_shutdown_actions();
aoqi@0:   os::wait_for_keypress_at_exit();
aoqi@0:   os::abort(dump_core);
aoqi@0:   ShouldNotReachHere();
aoqi@0: }
aoqi@0: 
aoqi@0: void vm_notify_during_shutdown(const char* error, const char* message) {
aoqi@0:   if (error != NULL) {
aoqi@0:     tty->print_cr("Error occurred during initialization of VM");
aoqi@0:     tty->print("%s", error);
aoqi@0:     if (message != NULL) {
aoqi@0:       tty->print_cr(": %s", message);
aoqi@0:     }
aoqi@0:     else {
aoqi@0:       tty->cr();
aoqi@0:     }
aoqi@0:   }
aoqi@0:   if (ShowMessageBoxOnError && WizardMode) {
aoqi@0:     fatal("Error occurred during initialization of VM");
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void vm_exit_during_initialization(Handle exception) {
aoqi@0:   tty->print_cr("Error occurred during initialization of VM");
aoqi@0:   // If there are exceptions on this thread it must be cleared
aoqi@0:   // first and here. Any future calls to EXCEPTION_MARK requires
aoqi@0:   // that no pending exceptions exist.
aoqi@0:   Thread *THREAD = Thread::current();
aoqi@0:   if (HAS_PENDING_EXCEPTION) {
aoqi@0:     CLEAR_PENDING_EXCEPTION;
aoqi@0:   }
aoqi@0:   java_lang_Throwable::print(exception, tty);
aoqi@0:   tty->cr();
aoqi@0:   java_lang_Throwable::print_stack_trace(exception(), tty);
aoqi@0:   tty->cr();
aoqi@0:   vm_notify_during_shutdown(NULL, NULL);
aoqi@0: 
aoqi@0:   // Failure during initialization, we don't want to dump core
aoqi@0:   vm_abort(false);
aoqi@0: }
aoqi@0: 
aoqi@0: void vm_exit_during_initialization(Symbol* ex, const char* message) {
aoqi@0:   ResourceMark rm;
aoqi@0:   vm_notify_during_shutdown(ex->as_C_string(), message);
aoqi@0: 
aoqi@0:   // Failure during initialization, we don't want to dump core
aoqi@0:   vm_abort(false);
aoqi@0: }
aoqi@0: 
aoqi@0: void vm_exit_during_initialization(const char* error, const char* message) {
aoqi@0:   vm_notify_during_shutdown(error, message);
aoqi@0: 
aoqi@0:   // Failure during initialization, we don't want to dump core
aoqi@0:   vm_abort(false);
aoqi@0: }
aoqi@0: 
aoqi@0: void vm_shutdown_during_initialization(const char* error, const char* message) {
aoqi@0:   vm_notify_during_shutdown(error, message);
aoqi@0:   vm_shutdown();
aoqi@0: }
aoqi@0: 
aoqi@0: JDK_Version JDK_Version::_current;
aoqi@0: const char* JDK_Version::_runtime_name;
aoqi@0: const char* JDK_Version::_runtime_version;
aoqi@0: 
aoqi@0: void JDK_Version::initialize() {
aoqi@0:   jdk_version_info info;
aoqi@0:   assert(!_current.is_valid(), "Don't initialize twice");
aoqi@0: 
aoqi@0:   void *lib_handle = os::native_java_library();
aoqi@0:   jdk_version_info_fn_t func = CAST_TO_FN_PTR(jdk_version_info_fn_t,
aoqi@0:      os::dll_lookup(lib_handle, "JDK_GetVersionInfo0"));
aoqi@0: 
aoqi@0:   if (func == NULL) {
aoqi@0:     // JDK older than 1.6
aoqi@0:     _current._partially_initialized = true;
aoqi@0:   } else {
aoqi@0:     (*func)(&info, sizeof(info));
aoqi@0: 
aoqi@0:     int major = JDK_VERSION_MAJOR(info.jdk_version);
aoqi@0:     int minor = JDK_VERSION_MINOR(info.jdk_version);
aoqi@0:     int micro = JDK_VERSION_MICRO(info.jdk_version);
aoqi@0:     int build = JDK_VERSION_BUILD(info.jdk_version);
aoqi@0:     if (major == 1 && minor > 4) {
aoqi@0:       // We represent "1.5.0" as "5.0", but 1.4.2 as itself.
aoqi@0:       major = minor;
aoqi@0:       minor = micro;
aoqi@0:       micro = 0;
aoqi@0:     }
aoqi@0:     _current = JDK_Version(major, minor, micro, info.update_version,
aoqi@0:                            info.special_update_version, build,
aoqi@0:                            info.thread_park_blocker == 1,
aoqi@0:                            info.post_vm_init_hook_enabled == 1,
aoqi@0:                            info.pending_list_uses_discovered_field == 1);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JDK_Version::fully_initialize(
aoqi@0:     uint8_t major, uint8_t minor, uint8_t micro, uint8_t update) {
aoqi@0:   // This is only called when current is less than 1.6 and we've gotten
aoqi@0:   // far enough in the initialization to determine the exact version.
aoqi@0:   assert(major < 6, "not needed for JDK version >= 6");
aoqi@0:   assert(is_partially_initialized(), "must not initialize");
aoqi@0:   if (major < 5) {
aoqi@0:     // JDK verison sequence: 1.2.x, 1.3.x, 1.4.x, 5.0.x, 6.0.x, etc.
aoqi@0:     micro = minor;
aoqi@0:     minor = major;
aoqi@0:     major = 1;
aoqi@0:   }
aoqi@0:   _current = JDK_Version(major, minor, micro, update);
aoqi@0: }
aoqi@0: 
aoqi@0: void JDK_Version_init() {
aoqi@0:   JDK_Version::initialize();
aoqi@0: }
aoqi@0: 
aoqi@0: static int64_t encode_jdk_version(const JDK_Version& v) {
aoqi@0:   return
aoqi@0:     ((int64_t)v.major_version()          << (BitsPerByte * 5)) |
aoqi@0:     ((int64_t)v.minor_version()          << (BitsPerByte * 4)) |
aoqi@0:     ((int64_t)v.micro_version()          << (BitsPerByte * 3)) |
aoqi@0:     ((int64_t)v.update_version()         << (BitsPerByte * 2)) |
aoqi@0:     ((int64_t)v.special_update_version() << (BitsPerByte * 1)) |
aoqi@0:     ((int64_t)v.build_number()           << (BitsPerByte * 0));
aoqi@0: }
aoqi@0: 
aoqi@0: int JDK_Version::compare(const JDK_Version& other) const {
aoqi@0:   assert(is_valid() && other.is_valid(), "Invalid version (uninitialized?)");
aoqi@0:   if (!is_partially_initialized() && other.is_partially_initialized()) {
aoqi@0:     return -(other.compare(*this)); // flip the comparators
aoqi@0:   }
aoqi@0:   assert(!other.is_partially_initialized(), "Not initialized yet");
aoqi@0:   if (is_partially_initialized()) {
aoqi@0:     assert(other.major_version() >= 6,
aoqi@0:            "Invalid JDK version comparison during initialization");
aoqi@0:     return -1;
aoqi@0:   } else {
aoqi@0:     uint64_t e = encode_jdk_version(*this);
aoqi@0:     uint64_t o = encode_jdk_version(other);
aoqi@0:     return (e > o) ? 1 : ((e == o) ? 0 : -1);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JDK_Version::to_string(char* buffer, size_t buflen) const {
shshahma@8584:   assert(buffer && buflen > 0, "call with useful buffer");
aoqi@0:   size_t index = 0;
aoqi@0:   if (!is_valid()) {
aoqi@0:     jio_snprintf(buffer, buflen, "%s", "(uninitialized)");
aoqi@0:   } else if (is_partially_initialized()) {
aoqi@0:     jio_snprintf(buffer, buflen, "%s", "(uninitialized) pre-1.6.0");
aoqi@0:   } else {
shshahma@8584:     int rc = jio_snprintf(
aoqi@0:         &buffer[index], buflen - index, "%d.%d", _major, _minor);
shshahma@8584:     if (rc == -1) return;
shshahma@8584:     index += rc;
aoqi@0:     if (_micro > 0) {
shshahma@8584:       rc = jio_snprintf(&buffer[index], buflen - index, ".%d", _micro);
shshahma@8584:       if (rc == -1) return;
shshahma@8584:       index += rc;
aoqi@0:     }
aoqi@0:     if (_update > 0) {
shshahma@8584:       rc = jio_snprintf(&buffer[index], buflen - index, "_%02d", _update);
shshahma@8584:       if (rc == -1) return;
shshahma@8584:       index += rc;
aoqi@0:     }
aoqi@0:     if (_special > 0) {
shshahma@8584:       rc = jio_snprintf(&buffer[index], buflen - index, "%c", _special);
shshahma@8584:       if (rc == -1) return;
shshahma@8584:       index += rc;
aoqi@0:     }
aoqi@0:     if (_build > 0) {
shshahma@8584:       rc = jio_snprintf(&buffer[index], buflen - index, "-b%02d", _build);
shshahma@8584:       if (rc == -1) return;
shshahma@8584:       index += rc;
aoqi@0:     }
aoqi@0:   }
aoqi@0: }