mirror of
https://gitee.com/openharmony/arkcompiler_ets_runtime
synced 2024-10-07 16:13:49 +00:00
0fb2f1694f
1. Implement SharedHeap and BaseHeap. 2. Adapt SharedSpace for allocation Signed-off-by: lukai <lukai25@huawei.com> Change-Id: Id7dd3510f04160e356ced5eee80b06f450386a13
108 lines
3.3 KiB
C++
108 lines
3.3 KiB
C++
/*
|
|
* Copyright (c) 2021 Huawei Device Co., Ltd.
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef ECMASCRIPT_FREE_OBJECT_H
|
|
#define ECMASCRIPT_FREE_OBJECT_H
|
|
|
|
#include "ecmascript/js_hclass-inl.h"
|
|
#include "ecmascript/mem/barriers.h"
|
|
#include "ecmascript/mem/tagged_object-inl.h"
|
|
|
|
#define INVALID_OBJECT ((FreeObject *) JSTaggedValue::NULL_POINTER)
|
|
|
|
namespace panda::ecmascript {
|
|
class FreeObject : public TaggedObject {
|
|
public:
|
|
static FreeObject *Cast(uintptr_t object)
|
|
{
|
|
return reinterpret_cast<FreeObject *>(object);
|
|
}
|
|
static FreeObject *FillFreeObject(BaseHeap *heap, uintptr_t address, size_t size);
|
|
|
|
inline bool IsEmpty() const
|
|
{
|
|
return Available() == 0;
|
|
}
|
|
|
|
inline uintptr_t GetBegin() const
|
|
{
|
|
return reinterpret_cast<uintptr_t>(this);
|
|
}
|
|
|
|
inline uintptr_t GetEnd() const
|
|
{
|
|
return reinterpret_cast<uintptr_t>(this) + Available();
|
|
}
|
|
|
|
inline void SetAvailable(uint32_t size)
|
|
{
|
|
if (size >= SIZE) {
|
|
Barriers::SetPrimitive<JSTaggedType>(this, SIZE_OFFSET, JSTaggedValue(size).GetRawData());
|
|
}
|
|
}
|
|
|
|
inline uint32_t Available() const
|
|
{
|
|
auto hclass = GetClass();
|
|
if (hclass->IsFreeObjectWithShortField()) {
|
|
return hclass->GetObjectSize();
|
|
}
|
|
ASSERT(GetSize().IsInt());
|
|
return GetSize().GetInt();
|
|
}
|
|
|
|
inline bool IsFreeObject() const
|
|
{
|
|
return GetClass()->IsFreeObject();
|
|
}
|
|
|
|
// Before operating any freeobject, need to mark unpoison when is_asan is true.
|
|
inline void AsanUnPoisonFreeObject() const
|
|
{
|
|
#ifdef ARK_ASAN_ON
|
|
ASAN_UNPOISON_MEMORY_REGION(this, NEXT_OFFSET);
|
|
if (GetClass()->IsFreeObjectWithOneField()) {
|
|
ASAN_UNPOISON_MEMORY_REGION(this, SIZE_OFFSET);
|
|
} else if (GetClass()->IsFreeObjectWithTwoField()) {
|
|
ASAN_UNPOISON_MEMORY_REGION(this, SIZE);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// After operating any freeobject, need to marked poison again when is_asan is true
|
|
inline void AsanPoisonFreeObject() const
|
|
{
|
|
#ifdef ARK_ASAN_ON
|
|
if (GetClass()->IsFreeObjectWithNoneField()) {
|
|
ASAN_POISON_MEMORY_REGION(this, NEXT_OFFSET);
|
|
} else if (GetClass()->IsFreeObjectWithOneField()) {
|
|
ASAN_POISON_MEMORY_REGION(this, SIZE_OFFSET);
|
|
} else if (GetClass()->IsFreeObjectWithTwoField()) {
|
|
ASAN_POISON_MEMORY_REGION(this, SIZE);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static constexpr size_t NEXT_OFFSET = TaggedObjectSize();
|
|
ACCESSORS_FIXED_SIZE_FIELD(Next, FreeObject *, JSTaggedType, NEXT_OFFSET, SIZE_OFFSET)
|
|
// TaggedArray visitor may be error while concurrent marking
|
|
ACCESSORS(Size, SIZE_OFFSET, SIZE)
|
|
};
|
|
|
|
static_assert((FreeObject::SIZE % static_cast<uint8_t>(MemAlignment::MEM_ALIGN_OBJECT)) == 0);
|
|
} // namespace panda::ecmascript
|
|
|
|
#endif // ECMASCRIPT_MEM_FREE_OBJECT_H
|