mirror of
https://gitee.com/openharmony/arkcompiler_ets_runtime
synced 2024-10-06 23:54:03 +00:00
d8cf9a50f7
Issue: https://gitee.com/open_harmony/dashboard?issue_id=IACDZP Change-Id: I729c3a2741cb2571d6f7184b2726e5f06eca802a Signed-off-by: Andrey Efremov <efremov.andrey@huawei-partners.com>
95 lines
3.3 KiB
C++
95 lines
3.3 KiB
C++
/*
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* Copyright (c) 2021-2024 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/free_object.h"
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#include "ecmascript/mem/heap.h"
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#include "ecmascript/mem/tagged_object-inl.h"
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#include "ecmascript/global_env_constants-inl.h"
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namespace panda::ecmascript {
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FreeObject *FreeObject::FillFreeObject(BaseHeap *heap, uintptr_t address, size_t size)
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{
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ASAN_UNPOISON_MEMORY_REGION(reinterpret_cast<void *>(address), size);
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auto globalConst = heap->GetGlobalConst();
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FreeObject *object = nullptr;
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if (size >= FreeObject::SIZE_OFFSET && size < FreeObject::SIZE) {
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object = reinterpret_cast<FreeObject *>(address);
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object->SetClassWithoutBarrier(
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JSHClass::Cast(globalConst->GetFreeObjectWithOneFieldClass().GetTaggedObject()));
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object->SetNext(INVALID_OBJECT);
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} else if (size >= FreeObject::SIZE) {
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object = reinterpret_cast<FreeObject *>(address);
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object->SetClassWithoutBarrier(
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JSHClass::Cast(globalConst->GetFreeObjectWithTwoFieldClass().GetTaggedObject()));
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object->SetAvailable(size);
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object->SetNext(INVALID_OBJECT);
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} else if (size == FreeObject::NEXT_OFFSET) {
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object = reinterpret_cast<FreeObject *>(address);
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object->SetClassWithoutBarrier(
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JSHClass::Cast(globalConst->GetFreeObjectWithNoneFieldClass().GetTaggedObject()));
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} else {
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LOG_ECMA(DEBUG) << "Fill free object size is smaller";
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}
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#ifdef ARK_ASAN_ON
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ASAN_POISON_MEMORY_REGION(reinterpret_cast<void *>(address), size);
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#endif
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return object;
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}
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uint32_t FreeObject::Available() const
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{
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auto hclass = GetClass();
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if (hclass->IsFreeObjectWithShortField()) {
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return hclass->GetObjectSize();
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}
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ASSERT(GetSize().IsInt());
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return GetSize().GetInt();
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}
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bool FreeObject::IsFreeObject() const
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{
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return GetClass()->IsFreeObject();
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}
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// Before operating any freeobject, need to mark unpoison when is_asan is true.
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void FreeObject::AsanUnPoisonFreeObject() const
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{
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#ifdef ARK_ASAN_ON
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ASAN_UNPOISON_MEMORY_REGION(this, NEXT_OFFSET);
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if (GetClass()->IsFreeObjectWithOneField()) {
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ASAN_UNPOISON_MEMORY_REGION(this, SIZE_OFFSET);
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} else if (GetClass()->IsFreeObjectWithTwoField()) {
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ASAN_UNPOISON_MEMORY_REGION(this, SIZE);
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}
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#endif
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}
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// After operating any freeobject, need to marked poison again when is_asan is true
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void FreeObject::AsanPoisonFreeObject() const
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{
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#ifdef ARK_ASAN_ON
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if (GetClass()->IsFreeObjectWithNoneField()) {
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ASAN_POISON_MEMORY_REGION(this, NEXT_OFFSET);
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} else if (GetClass()->IsFreeObjectWithOneField()) {
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ASAN_POISON_MEMORY_REGION(this, SIZE_OFFSET);
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} else if (GetClass()->IsFreeObjectWithTwoField()) {
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ASAN_POISON_MEMORY_REGION(this, SIZE);
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}
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#endif
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}
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} // namespace panda::ecmascript
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