mirror of
https://gitee.com/openharmony/arkcompiler_ets_runtime
synced 2024-10-07 16:13:49 +00:00
5fd527c8a1
Signed-off-by: chentianyu <chentianyu31@huawei.com> Change-Id: Iac95cc284deda7af61036d2617da6bb36c730970
210 lines
7.8 KiB
C++
210 lines
7.8 KiB
C++
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "ecmascript/mem/full_gc.h"
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#include "ecmascript/ecma_vm.h"
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#include "ecmascript/mem/clock_scope.h"
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#include "ecmascript/mem/concurrent_marker.h"
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#include "ecmascript/mem/concurrent_sweeper.h"
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#include "ecmascript/mem/heap-inl.h"
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#include "ecmascript/mem/incremental_marker.h"
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#include "ecmascript/mem/mark_stack.h"
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#include "ecmascript/mem/mem.h"
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#include "ecmascript/mem/parallel_marker-inl.h"
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#include "ecmascript/mem/space-inl.h"
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#include "ecmascript/mem/verification.h"
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#include "ecmascript/mem/visitor.h"
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#include "ecmascript/mem/gc_stats.h"
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#include "ecmascript/ecma_string_table.h"
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#include "ecmascript/runtime_call_id.h"
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namespace panda::ecmascript {
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FullGC::FullGC(Heap *heap) : heap_(heap), workManager_(heap->GetWorkManager()) {}
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void FullGC::RunPhases()
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{
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GCStats *gcStats = heap_->GetEcmaVM()->GetEcmaGCStats();
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ECMA_BYTRACE_NAME(HITRACE_TAG_ARK, "FullGC::RunPhases;Reason"
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+ std::to_string(static_cast<int>(gcStats->GetGCReason()))
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+ ";Sensitive" + std::to_string(static_cast<int>(heap_->GetSensitiveStatus()))
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+ ";Startup" + std::to_string(heap_->onStartUpEvent())
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+ ";Young" + std::to_string(heap_->GetNewSpace()->GetCommittedSize())
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+ ";Old" + std::to_string(heap_->GetOldSpace()->GetCommittedSize())
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+ ";huge" + std::to_string(heap_->GetHugeObjectSpace()->GetCommittedSize())
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+ ";NonMov" + std::to_string(heap_->GetNonMovableSpace()->GetCommittedSize())
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+ ";TotCommit" + std::to_string(heap_->GetCommittedSize()));
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TRACE_GC(GCStats::Scope::ScopeId::TotalGC, gcStats);
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MEM_ALLOCATE_AND_GC_TRACE(heap_->GetEcmaVM(), FullGC_RunPhases);
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if (heap_->CheckOngoingConcurrentMarking()) {
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LOG_GC(DEBUG) << "FullGC after ConcurrentMarking";
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heap_->GetConcurrentMarker()->Reset(); // HPPGC use mark result to move TaggedObject.
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}
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if (heap_->GetIncrementalMarker()->IsTriggeredIncrementalMark()) {
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LOG_GC(DEBUG) << "FullGC after IncrementalMarking";
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heap_->ClearIdleTask();
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heap_->DisableNotifyIdle();
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heap_->GetIncrementalMarker()->Reset();
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}
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Initialize();
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Mark();
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Sweep();
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Finish();
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if (UNLIKELY(heap_->ShouldVerifyHeap())) {
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// verify mark
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LOG_ECMA(DEBUG) << "start verify post fullgc";
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Verification(heap_, VerifyKind::VERIFY_SHARED_RSET_POST_FULL_GC).VerifyAll();
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}
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heap_->NotifyHeapAliveSizeAfterGC(heap_->GetHeapObjectSize());
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}
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void FullGC::RunPhasesForAppSpawn()
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{
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auto marker = reinterpret_cast<CompressGCMarker*>(heap_->GetCompressGCMarker());
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marker->SetAppSpawn(true);
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RunPhases();
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marker->SetAppSpawn(false);
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}
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void FullGC::Initialize()
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{
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ECMA_BYTRACE_NAME(HITRACE_TAG_ARK, "FullGC::Initialize");
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TRACE_GC(GCStats::Scope::ScopeId::Initialize, heap_->GetEcmaVM()->GetEcmaGCStats());
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heap_->Prepare();
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auto callback = [](Region *current) {
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current->ResetAliveObject();
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current->ClearOldToNewRSet();
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};
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heap_->EnumerateNonMovableRegions(callback);
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heap_->GetAppSpawnSpace()->EnumerateRegions([](Region *current) {
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current->ClearMarkGCBitset();
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current->ClearCrossRegionRSet();
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});
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youngSpaceCommitSize_ = heap_->GetNewSpace()->GetCommittedSize();
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heap_->SwapNewSpace();
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workManager_->Initialize(TriggerGCType::FULL_GC, ParallelGCTaskPhase::COMPRESS_HANDLE_GLOBAL_POOL_TASK);
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heap_->GetCompressGCMarker()->Initialize();
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youngAndOldAliveSize_ = 0;
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nonMoveSpaceFreeSize_ = 0;
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oldSpaceCommitSize_ = heap_->GetOldSpace()->GetCommittedSize();
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nonMoveSpaceCommitSize_ = heap_->GetNonMovableSpace()->GetCommittedSize();
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}
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void FullGC::Mark()
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{
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ECMA_BYTRACE_NAME(HITRACE_TAG_ARK, "FullGC::Mark");
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TRACE_GC(GCStats::Scope::ScopeId::Mark, heap_->GetEcmaVM()->GetEcmaGCStats());
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heap_->GetCompressGCMarker()->MarkRoots(MAIN_THREAD_INDEX);
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heap_->GetCompressGCMarker()->ProcessMarkStack(MAIN_THREAD_INDEX);
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heap_->WaitRunningTaskFinished();
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}
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void FullGC::Sweep()
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{
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ECMA_BYTRACE_NAME(HITRACE_TAG_ARK, "FullGC::Sweep");
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TRACE_GC(GCStats::Scope::ScopeId::Sweep, heap_->GetEcmaVM()->GetEcmaGCStats());
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// process weak reference
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uint32_t totalThreadCount = 1; // 1 : mainthread
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if (heap_->IsParallelGCEnabled()) {
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totalThreadCount += Taskpool::GetCurrentTaskpool()->GetTotalThreadNum();
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}
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for (uint32_t i = 0; i < totalThreadCount; i++) {
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ProcessQueue *queue = workManager_->GetWeakReferenceQueue(i);
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while (true) {
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auto obj = queue->PopBack();
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if (UNLIKELY(obj == nullptr)) {
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break;
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}
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ObjectSlot slot(ToUintPtr(obj));
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JSTaggedValue value(slot.GetTaggedType());
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auto header = value.GetTaggedWeakRef();
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Region *objectRegion = Region::ObjectAddressToRange(header);
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if (!HasEvacuated(objectRegion)) {
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if (!objectRegion->InSharedHeap() && !objectRegion->Test(header)) {
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slot.Clear();
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}
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} else {
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MarkWord markWord(header);
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if (markWord.IsForwardingAddress()) {
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TaggedObject *dst = markWord.ToForwardingAddress();
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auto weakRef = JSTaggedValue(JSTaggedValue(dst).CreateAndGetWeakRef()).GetRawTaggedObject();
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slot.Update(weakRef);
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} else {
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slot.Update(static_cast<JSTaggedType>(JSTaggedValue::Undefined().GetRawData()));
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}
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}
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}
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}
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WeakRootVisitor gcUpdateWeak = [this](TaggedObject *header) {
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Region *objectRegion = Region::ObjectAddressToRange(header);
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if (!objectRegion) {
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LOG_GC(ERROR) << "FullGC updateWeakReference: region is nullptr, header is " << header;
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return reinterpret_cast<TaggedObject *>(ToUintPtr(nullptr));
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}
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if (!HasEvacuated(objectRegion)) {
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// The weak object in shared heap is always alive during fullGC.
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if (objectRegion->InSharedHeap() || objectRegion->Test(header)) {
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return header;
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}
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return reinterpret_cast<TaggedObject *>(ToUintPtr(nullptr));
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}
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MarkWord markWord(header);
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if (markWord.IsForwardingAddress()) {
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return markWord.ToForwardingAddress();
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}
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return reinterpret_cast<TaggedObject *>(ToUintPtr(nullptr));
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};
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heap_->GetEcmaVM()->GetJSThread()->IterateWeakEcmaGlobalStorage(gcUpdateWeak);
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heap_->GetEcmaVM()->ProcessReferences(gcUpdateWeak);
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heap_->GetSweeper()->Sweep(true);
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heap_->GetSweeper()->PostTask(true);
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}
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void FullGC::Finish()
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{
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ECMA_BYTRACE_NAME(HITRACE_TAG_ARK, "FullGC::Finish");
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TRACE_GC(GCStats::Scope::ScopeId::Finish, heap_->GetEcmaVM()->GetEcmaGCStats());
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if (!forAppSpawn_) {
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heap_->SwapOldSpace();
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}
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youngAndOldAliveSize_ = workManager_->Finish();
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if (forAppSpawn_) {
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heap_->ResumeForAppSpawn();
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} else {
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heap_->Resume(FULL_GC);
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}
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heap_->GetSweeper()->TryFillSweptRegion();
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}
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bool FullGC::HasEvacuated(Region *region)
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{
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auto marker = reinterpret_cast<CompressGCMarker*>(heap_->GetCompressGCMarker());
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return marker->NeedEvacuate(region);
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}
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void FullGC::SetForAppSpawn(bool flag)
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{
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forAppSpawn_ = flag;
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}
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} // namespace panda::ecmascript
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