mirror of
https://gitee.com/openharmony/arkcompiler_ets_runtime
synced 2024-10-07 08:03:29 +00:00
ae59f86887
1) Get rid of the dependency on "Space"; 2) Fix a bug in RegionFlags definition, and tidy it up. 3) Fix the flag check logic to make it support multi-bit test; 4) Clean-up some logic to determine if a region or an object is valid / alive; Issue: https://gitee.com/openharmony/ark_js_runtime/issues/I590Z8 Signed-off-by: Yuqiang Xian <xianyuqiang@huawei.com>
56 lines
2.2 KiB
C++
56 lines
2.2 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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#ifndef ECMASCRIPT_MEM_BARRIERS_INL_H
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#define ECMASCRIPT_MEM_BARRIERS_INL_H
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#include "ecmascript/base/config.h"
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#include "ecmascript/js_tagged_value.h"
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#include "ecmascript/mem/barriers.h"
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#include "ecmascript/mem/region-inl.h"
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namespace panda::ecmascript {
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static ARK_INLINE void WriteBarrier(void *obj, size_t offset, JSTaggedType value)
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{
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ASSERT(value != JSTaggedValue::VALUE_UNDEFINED);
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Region *objectRegion = Region::ObjectAddressToRange(static_cast<TaggedObject *>(obj));
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Region *valueRegion = Region::ObjectAddressToRange(reinterpret_cast<TaggedObject *>(value));
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uintptr_t slotAddr = ToUintPtr(obj) + offset;
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if (!objectRegion->InYoungSpace() && valueRegion->InYoungSpace()) {
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// Should align with '8' in 64 and 32 bit platform
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ASSERT((slotAddr % static_cast<uint8_t>(MemAlignment::MEM_ALIGN_OBJECT)) == 0);
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objectRegion->InsertOldToNewRSet(slotAddr);
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}
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if (valueRegion->IsMarking()) {
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Barriers::Update(slotAddr, objectRegion, reinterpret_cast<TaggedObject *>(value), valueRegion);
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}
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}
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/* static */
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// CODECHECK-NOLINTNEXTLINE(C_RULE_ID_COMMENT_LOCATION)
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// default value for need_write_barrier is true
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template<bool need_write_barrier>
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inline void Barriers::SetDynObject([[maybe_unused]] const JSThread *thread, void *obj, size_t offset,
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JSTaggedType value)
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{
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// NOLINTNEXTLINE(clang-analyzer-core.NullDereference)
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*reinterpret_cast<JSTaggedType *>(reinterpret_cast<uintptr_t>(obj) + offset) = value;
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WriteBarrier(obj, offset, value);
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}
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} // namespace panda::ecmascript
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#endif // ECMASCRIPT_MEM_BARRIERS_INL_H
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