apetushkov@9858: /*
ddong@9885:  * Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
apetushkov@9858:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
apetushkov@9858:  *
apetushkov@9858:  * This code is free software; you can redistribute it and/or modify it
apetushkov@9858:  * under the terms of the GNU General Public License version 2 only, as
apetushkov@9858:  * published by the Free Software Foundation.
apetushkov@9858:  *
apetushkov@9858:  * This code is distributed in the hope that it will be useful, but WITHOUT
apetushkov@9858:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
apetushkov@9858:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
apetushkov@9858:  * version 2 for more details (a copy is included in the LICENSE file that
apetushkov@9858:  * accompanied this code).
apetushkov@9858:  *
apetushkov@9858:  * You should have received a copy of the GNU General Public License version
apetushkov@9858:  * 2 along with this work; if not, write to the Free Software Foundation,
apetushkov@9858:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
apetushkov@9858:  *
apetushkov@9858:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
apetushkov@9858:  * or visit www.oracle.com if you need additional information or have any
apetushkov@9858:  * questions.
apetushkov@9858:  *
apetushkov@9858:  */
apetushkov@9858: 
apetushkov@9858: #include "precompiled.hpp"
apetushkov@9858: #include "classfile/javaClasses.hpp"
apetushkov@9858: #include "code/codeBlob.hpp"
apetushkov@9858: #include "code/codeCache.hpp"
apetushkov@9858: #include "gc_interface/gcCause.hpp"
apetushkov@9858: #include "gc_interface/gcName.hpp"
apetushkov@9858: #include "gc_implementation/shared/gcTrace.hpp"
apetushkov@9858: #include "gc_implementation/shared/gcWhen.hpp"
apetushkov@9858: #include "jfr/leakprofiler/checkpoint/objectSampleCheckpoint.hpp"
apetushkov@9858: #include "jfr/leakprofiler/leakProfiler.hpp"
apetushkov@9858: #include "jfr/recorder/checkpoint/jfrCheckpointManager.hpp"
apetushkov@9858: #include "jfr/recorder/checkpoint/types/jfrType.hpp"
apetushkov@9858: #include "jfr/recorder/jfrRecorder.hpp"
apetushkov@9858: #include "jfr/recorder/checkpoint/types/jfrThreadGroup.hpp"
apetushkov@9858: #include "jfr/recorder/checkpoint/types/jfrThreadState.hpp"
apetushkov@9858: #include "jfr/recorder/checkpoint/types/jfrTypeSet.hpp"
apetushkov@9858: #include "jfr/support/jfrThreadLocal.hpp"
apetushkov@9858: #include "jfr/writers/jfrJavaEventWriter.hpp"
apetushkov@9858: #include "memory/metaspaceGCThresholdUpdater.hpp"
apetushkov@9858: #include "memory/referenceType.hpp"
apetushkov@9858: #include "memory/universe.hpp"
apetushkov@9858: #include "runtime/mutexLocker.hpp"
apetushkov@9858: #include "runtime/osThread.hpp"
apetushkov@9858: #include "runtime/safepoint.hpp"
apetushkov@9858: #include "runtime/synchronizer.hpp"
apetushkov@9858: #include "runtime/thread.inline.hpp"
apetushkov@9858: #include "runtime/vm_operations.hpp"
apetushkov@9858: 
apetushkov@9858: #ifdef COMPILER2
apetushkov@9858: #include "opto/compile.hpp"
apetushkov@9858: #include "opto/node.hpp"
apetushkov@9858: #endif
apetushkov@9858: #if INCLUDE_ALL_GCS
shade@9862: #include "gc_implementation/g1/g1HeapRegionTraceType.hpp"
apetushkov@9858: #include "gc_implementation/g1/g1YCTypes.hpp"
apetushkov@9858: #endif
apetushkov@9858: 
apetushkov@9858: // Requires a ResourceMark for get_thread_name/as_utf8
apetushkov@9858: class JfrCheckpointThreadClosure : public ThreadClosure {
apetushkov@9858:  private:
apetushkov@9858:   JfrCheckpointWriter& _writer;
apetushkov@9858:   JfrCheckpointContext _ctx;
bulasevich@9947:   const int64_t _count_position;
apetushkov@9858:   Thread* const _curthread;
apetushkov@9858:   u4 _count;
apetushkov@9858: 
apetushkov@9858:  public:
apetushkov@9858:   JfrCheckpointThreadClosure(JfrCheckpointWriter& writer) : _writer(writer),
apetushkov@9858:                                                             _ctx(writer.context()),
apetushkov@9858:                                                             _count_position(writer.reserve(sizeof(u4))),
apetushkov@9858:                                                             _curthread(Thread::current()),
apetushkov@9858:                                                             _count(0) {
apetushkov@9858:   }
apetushkov@9858: 
apetushkov@9858:   ~JfrCheckpointThreadClosure() {
apetushkov@9858:     if (_count == 0) {
apetushkov@9858:       // restore
apetushkov@9858:       _writer.set_context(_ctx);
apetushkov@9858:       return;
apetushkov@9858:     }
apetushkov@9858:     _writer.write_count(_count, _count_position);
apetushkov@9858:   }
apetushkov@9858: 
apetushkov@9858:   void do_thread(Thread* t);
apetushkov@9858: };
apetushkov@9858: 
apetushkov@9858: // Requires a ResourceMark for get_thread_name/as_utf8
apetushkov@9858: void JfrCheckpointThreadClosure::do_thread(Thread* t) {
apetushkov@9858:   assert(t != NULL, "invariant");
apetushkov@9858:   assert_locked_or_safepoint(Threads_lock);
apetushkov@9858:   const JfrThreadLocal* const tl = t->jfr_thread_local();
apetushkov@9858:   assert(tl != NULL, "invariant");
apetushkov@9858:   if (tl->is_dead()) {
apetushkov@9858:     return;
apetushkov@9858:   }
apetushkov@9858:   ++_count;
apetushkov@9858:   _writer.write_key(tl->thread_id());
apetushkov@9858:   _writer.write(t->name());
apetushkov@9858:   const OSThread* const os_thread = t->osthread();
apetushkov@9858:   _writer.write<traceid>(os_thread != NULL ? os_thread->thread_id() : 0);
apetushkov@9858:   if (t->is_Java_thread()) {
apetushkov@9858:     JavaThread* const jt = (JavaThread*)t;
apetushkov@9858:     _writer.write(jt->name());
apetushkov@9858:     _writer.write(java_lang_Thread::thread_id(jt->threadObj()));
apetushkov@9858:     _writer.write(JfrThreadGroup::thread_group_id(jt, _curthread));
apetushkov@9858:     // since we are iterating threads during a safepoint, also issue notification
apetushkov@9858:     JfrJavaEventWriter::notify(jt);
apetushkov@9858:     return;
apetushkov@9858:   }
apetushkov@9858:   _writer.write((const char*)NULL); // java name
apetushkov@9858:   _writer.write((traceid)0); // java thread id
apetushkov@9858:   _writer.write((traceid)0); // java thread group
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void JfrThreadConstantSet::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   assert(SafepointSynchronize::is_at_safepoint(), "invariant");
apetushkov@9858:   JfrCheckpointThreadClosure tc(writer);
apetushkov@9858:   Threads::threads_do(&tc);
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void JfrThreadGroupConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   assert(SafepointSynchronize::is_at_safepoint(), "invariant");
apetushkov@9858:   JfrThreadGroup::serialize(writer);
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: static const char* flag_value_origin_to_string(Flag::Flags origin) {
apetushkov@9858:   switch (origin) {
apetushkov@9858:     case Flag::DEFAULT: return "Default";
apetushkov@9858:     case Flag::COMMAND_LINE: return "Command line";
apetushkov@9858:     case Flag::ENVIRON_VAR: return "Environment variable";
apetushkov@9858:     case Flag::CONFIG_FILE: return "Config file";
apetushkov@9858:     case Flag::MANAGEMENT: return "Management";
apetushkov@9858:     case Flag::ERGONOMIC: return "Ergonomic";
apetushkov@9858:     case Flag::ATTACH_ON_DEMAND: return "Attach on demand";
apetushkov@9858:     case Flag::INTERNAL: return "Internal";
apetushkov@9858:     default: ShouldNotReachHere(); return "";
apetushkov@9858:   }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void FlagValueOriginConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   static const u4 nof_entries = Flag::LAST_VALUE_ORIGIN + 1;
apetushkov@9858:   writer.write_count(nof_entries);
apetushkov@9858:   for (u4 i = 0; i < nof_entries; ++i) {
apetushkov@9858:     writer.write_key(i);
apetushkov@9858:     writer.write(flag_value_origin_to_string((Flag::Flags)i));
apetushkov@9858:   }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void MonitorInflateCauseConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   // XXX no such counters. implement?
apetushkov@9858: //  static const u4 nof_entries = ObjectSynchronizer::inflate_cause_nof;
apetushkov@9858: //  writer.write_count(nof_entries);
apetushkov@9858: //  for (u4 i = 0; i < nof_entries; ++i) {
apetushkov@9858: //    writer.write_key(i);
apetushkov@9858: //    writer.write(ObjectSynchronizer::inflate_cause_name((ObjectSynchronizer::InflateCause)i));
apetushkov@9858: //  }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void GCCauseConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   static const u4 nof_entries = GCCause::_last_gc_cause;
apetushkov@9858:   writer.write_count(nof_entries);
apetushkov@9858:   for (u4 i = 0; i < nof_entries; ++i) {
apetushkov@9858:     writer.write_key(i);
apetushkov@9858:     writer.write(GCCause::to_string((GCCause::Cause)i));
apetushkov@9858:   }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void GCNameConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   static const u4 nof_entries = GCNameEndSentinel;
apetushkov@9858:   writer.write_count(nof_entries);
apetushkov@9858:   for (u4 i = 0; i < nof_entries; ++i) {
apetushkov@9858:     writer.write_key(i);
apetushkov@9858:     writer.write(GCNameHelper::to_string((GCName)i));
apetushkov@9858:   }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void GCWhenConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   static const u4 nof_entries = GCWhen::GCWhenEndSentinel;
apetushkov@9858:   writer.write_count(nof_entries);
apetushkov@9858:   for (u4 i = 0; i < nof_entries; ++i) {
apetushkov@9858:     writer.write_key(i);
apetushkov@9858:     writer.write(GCWhen::to_string((GCWhen::Type)i));
apetushkov@9858:   }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void G1HeapRegionTypeConstant::serialize(JfrCheckpointWriter& writer) {
neugens@9861:   static const u4 nof_entries = G1HeapRegionTraceType::G1HeapRegionTypeEndSentinel;
neugens@9861:   writer.write_count(nof_entries);
neugens@9861:   for (u4 i = 0; i < nof_entries; ++i) {
neugens@9861:     writer.write_key(i);
neugens@9861:     writer.write(G1HeapRegionTraceType::to_string((G1HeapRegionTraceType::Type)i));
neugens@9861:   }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void GCThresholdUpdaterConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   static const u4 nof_entries = MetaspaceGCThresholdUpdater::Last;
apetushkov@9858:   writer.write_count(nof_entries);
apetushkov@9858:   for (u4 i = 0; i < nof_entries; ++i) {
apetushkov@9858:     writer.write_key(i);
apetushkov@9858:     writer.write(MetaspaceGCThresholdUpdater::to_string((MetaspaceGCThresholdUpdater::Type)i));
apetushkov@9858:   }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void MetadataTypeConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   static const u4 nof_entries = Metaspace::MetadataTypeCount;
apetushkov@9858:   writer.write_count(nof_entries);
apetushkov@9858:   for (u4 i = 0; i < nof_entries; ++i) {
apetushkov@9858:     writer.write_key(i);
apetushkov@9858:     writer.write(Metaspace::metadata_type_name((Metaspace::MetadataType)i));
apetushkov@9858:   }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void MetaspaceObjectTypeConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   static const u4 nof_entries = MetaspaceObj::_number_of_types;
apetushkov@9858:   writer.write_count(nof_entries);
apetushkov@9858:   for (u4 i = 0; i < nof_entries; ++i) {
apetushkov@9858:     writer.write_key(i);
apetushkov@9858:     writer.write(MetaspaceObj::type_name((MetaspaceObj::Type)i));
apetushkov@9858:   }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void G1YCTypeConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858: #if INCLUDE_ALL_GCS
apetushkov@9858:   static const u4 nof_entries = G1YCTypeEndSentinel;
apetushkov@9858:   writer.write_count(nof_entries);
apetushkov@9858:   for (u4 i = 0; i < nof_entries; ++i) {
apetushkov@9858:     writer.write_key(i);
apetushkov@9858:     writer.write(G1YCTypeHelper::to_string((G1YCType)i));
apetushkov@9858:   }
apetushkov@9858: #endif
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: static const char* reference_type_to_string(ReferenceType rt) {
apetushkov@9858:   switch (rt) {
apetushkov@9858:     case REF_NONE: return "None reference";
apetushkov@9858:     case REF_OTHER: return "Other reference";
apetushkov@9858:     case REF_SOFT: return "Soft reference";
apetushkov@9858:     case REF_WEAK: return "Weak reference";
apetushkov@9858:     case REF_FINAL: return "Final reference";
apetushkov@9858:     case REF_PHANTOM: return "Phantom reference";
apetushkov@9858:     default:
apetushkov@9858:       ShouldNotReachHere();
apetushkov@9858:     return NULL;
apetushkov@9858:   }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void ReferenceTypeConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   static const u4 nof_entries = REF_PHANTOM + 1;
apetushkov@9858:   writer.write_count(nof_entries);
apetushkov@9858:   for (u4 i = 0; i < nof_entries; ++i) {
apetushkov@9858:     writer.write_key(i);
apetushkov@9858:     writer.write(reference_type_to_string((ReferenceType)i));
apetushkov@9858:   }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void NarrowOopModeConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   static const u4 nof_entries = Universe::HeapBasedNarrowOop + 1;
apetushkov@9858:   writer.write_count(nof_entries);
apetushkov@9858:   for (u4 i = 0; i < nof_entries; ++i) {
apetushkov@9858:     writer.write_key(i);
apetushkov@9858:     writer.write(Universe::narrow_oop_mode_to_string((Universe::NARROW_OOP_MODE)i));
apetushkov@9858:   }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void CompilerPhaseTypeConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858: #ifdef COMPILER2
apetushkov@9858:   static const u4 nof_entries = PHASE_NUM_TYPES;
apetushkov@9858:   writer.write_count(nof_entries);
apetushkov@9858:   for (u4 i = 0; i < nof_entries; ++i) {
apetushkov@9858:     writer.write_key(i);
apetushkov@9858:     writer.write(CompilerPhaseTypeHelper::to_string((CompilerPhaseType)i));
apetushkov@9858:   }
apetushkov@9858: #endif
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void CodeBlobTypeConstant::serialize(JfrCheckpointWriter& writer) {
neugens@9861:   static const u4 nof_entries = CodeBlobType::NumTypes;
neugens@9861:   writer.write_count(nof_entries);
neugens@9861:   writer.write_key((u4)CodeBlobType::All);
neugens@9861:   writer.write("CodeCache");
apetushkov@9858: };
apetushkov@9858: 
apetushkov@9858: void VMOperationTypeConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   static const u4 nof_entries = VM_Operation::VMOp_Terminating;
apetushkov@9858:   writer.write_count(nof_entries);
apetushkov@9858:   for (u4 i = 0; i < nof_entries; ++i) {
apetushkov@9858:     writer.write_key(i);
apetushkov@9858:     writer.write(VM_Operation::name(VM_Operation::VMOp_Type(i)));
apetushkov@9858:   }
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: class TypeSetSerialization {
apetushkov@9858:  private:
apetushkov@9858:   bool _class_unload;
apetushkov@9858:  public:
apetushkov@9858:   explicit TypeSetSerialization(bool class_unload) : _class_unload(class_unload) {}
apetushkov@9858:   void write(JfrCheckpointWriter& writer, JfrCheckpointWriter* leakp_writer) {
apetushkov@9858:     JfrTypeSet::serialize(&writer, leakp_writer, _class_unload);
apetushkov@9858:   }
apetushkov@9858: };
apetushkov@9858: 
apetushkov@9858: void ClassUnloadTypeSet::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   TypeSetSerialization type_set(true);
apetushkov@9858:   if (LeakProfiler::is_running()) {
apetushkov@9858:     JfrCheckpointWriter leakp_writer(false, true, Thread::current());
apetushkov@9858:     type_set.write(writer, &leakp_writer);
apetushkov@9858:     ObjectSampleCheckpoint::install(leakp_writer, true, true);
apetushkov@9858:     return;
apetushkov@9858:   }
apetushkov@9858:   type_set.write(writer, NULL);
apetushkov@9858: };
apetushkov@9858: 
apetushkov@9858: void TypeSet::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   TypeSetSerialization type_set(false);
ddong@9885:   if (LeakProfiler::is_running()) {
apetushkov@9858:     JfrCheckpointWriter leakp_writer(false, true, Thread::current());
apetushkov@9858:     type_set.write(writer, &leakp_writer);
apetushkov@9858:     ObjectSampleCheckpoint::install(leakp_writer, false, true);
apetushkov@9858:     return;
apetushkov@9858:   }
apetushkov@9858:   type_set.write(writer, NULL);
apetushkov@9858: };
apetushkov@9858: 
apetushkov@9858: void ThreadStateConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   JfrThreadState::serialize(writer);
apetushkov@9858: }
apetushkov@9858: 
apetushkov@9858: void JfrThreadConstant::serialize(JfrCheckpointWriter& writer) {
apetushkov@9858:   assert(_thread != NULL, "invariant");
apetushkov@9858:   assert(_thread == Thread::current(), "invariant");
apetushkov@9858:   assert(_thread->is_Java_thread(), "invariant");
apetushkov@9858:   assert(!_thread->jfr_thread_local()->has_thread_checkpoint(), "invariant");
apetushkov@9858:   ResourceMark rm(_thread);
apetushkov@9858:   const oop threadObj = _thread->threadObj();
apetushkov@9858:   assert(threadObj != NULL, "invariant");
apetushkov@9858:   const u8 java_lang_thread_id = java_lang_Thread::thread_id(threadObj);
apetushkov@9858:   const char* const thread_name = _thread->name();
apetushkov@9858:   const traceid thread_group_id = JfrThreadGroup::thread_group_id(_thread);
apetushkov@9858:   writer.write_count(1);
apetushkov@9858:   writer.write_key(_thread->jfr_thread_local()->thread_id());
apetushkov@9858:   writer.write(thread_name);
apetushkov@9858:   writer.write((traceid)_thread->osthread()->thread_id());
apetushkov@9858:   writer.write(thread_name);
apetushkov@9858:   writer.write(java_lang_thread_id);
apetushkov@9858:   writer.write(thread_group_id);
apetushkov@9858:   JfrThreadGroup::serialize(&writer, thread_group_id);
apetushkov@9858: }