mirror of
https://github.com/openharmony/ark_js_runtime.git
synced 2026-08-27 20:40:01 -04:00
lukai
d23dfb2033
Issue: https://gitee.com/openharmony/ark_js_runtime/issues/I4VRCY?from=project-issue Signed-off-by: lukai <lukai25@huawei.com> Change-Id: I3ccf5ecfc55282092c799e2b427515f037fabca4
86 lines
3.1 KiB
C++
86 lines
3.1 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/heap_region_allocator.h"
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#include "ecmascript/mem/heap.h"
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#include "ecmascript/mem/mark_stack.h"
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#include "ecmascript/mem/region.h"
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#include "libpandabase/mem/pool_manager.h"
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#ifdef PANDA_TARGET_UNIX
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#include <sys/prctl.h>
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#ifndef PR_SET_VMA
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#define PR_SET_VMA 0x53564d41
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#endif
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#ifndef PR_SET_VMA_ANON_NAME
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#define PR_SET_VMA_ANON_NAME 0
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#endif
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#endif // PANDA_TARGET_UNIX
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namespace panda::ecmascript {
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Region *HeapRegionAllocator::AllocateAlignedRegion(Space *space, size_t capacity)
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{
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if (capacity == 0) {
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LOG_ECMA_MEM(FATAL) << "capacity must have a size bigger than 0";
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UNREACHABLE();
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}
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auto pool = PoolManager::GetMmapMemPool()->AllocPool(capacity, panda::SpaceType::SPACE_TYPE_OBJECT,
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AllocatorType::RUNSLOTS_ALLOCATOR, nullptr);
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void *mapMem = pool.GetMem();
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if (mapMem == nullptr) {
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LOG_ECMA_MEM(FATAL) << "pool is empty " << annoMemoryUsage_.load(std::memory_order_relaxed);
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UNREACHABLE();
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}
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#ifdef PANDA_TARGET_UNIX
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prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, mapMem, pool.GetSize(), "Arkjs Heap");
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#endif // PANDA_TARGET_UNIX
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#if ECMASCRIPT_ENABLE_ZAP_MEM
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if (memset_s(mapMem, capacity, 0, capacity) != EOK) {
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LOG_ECMA(FATAL) << "memset_s failed";
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UNREACHABLE();
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}
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#endif
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IncreaseAnnoMemoryUsage(capacity);
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uintptr_t mem = ToUintPtr(mapMem);
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// Check that the address is 256K byte aligned
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LOG_IF(AlignUp(mem, PANDA_POOL_ALIGNMENT_IN_BYTES) != mem, FATAL, RUNTIME) << "region not align by 256KB";
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// NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
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uintptr_t begin = AlignUp(mem + sizeof(Region), static_cast<size_t>(MemAlignment::MEM_ALIGN_REGION));
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uintptr_t end = mem + capacity;
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return new (ToVoidPtr(mem)) Region(space, space->GetHeap(), mem, begin, end,
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space->GetHeap()->GetNativeAreaAllocator());
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}
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void HeapRegionAllocator::FreeRegion(Region *region)
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{
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auto size = region->GetCapacity();
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DecreaseAnnoMemoryUsage(size);
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#if ECMASCRIPT_ENABLE_ZAP_MEM
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if (memset_s(ToVoidPtr(region->GetAllocateBase()), size, INVALID_VALUE, size) != EOK) {
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LOG_ECMA(FATAL) << "memset_s failed";
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UNREACHABLE();
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}
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#endif
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PoolManager::GetMmapMemPool()->FreePool(ToVoidPtr(region->GetAllocateBase()), size);
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#ifdef PANDA_TARGET_UNIX
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prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, region->GetAllocateBase(), size, nullptr);
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#endif // PANDA_TARGET_UNIX
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}
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} // namespace panda::ecmascript
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