6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
//===--------------- MapperJITLinkMemoryManager.h -*- C++ -*---------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Implements JITLinkMemoryManager using MemoryMapper
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_EXECUTIONENGINE_ORC_MAPPERJITLINKMEMORYMANAGER_H
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#define LLVM_EXECUTIONENGINE_ORC_MAPPERJITLINKMEMORYMANAGER_H
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#include "llvm/ADT/IntervalMap.h"
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#include "llvm/ExecutionEngine/JITLink/JITLinkMemoryManager.h"
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#include "llvm/ExecutionEngine/Orc/MemoryMapper.h"
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namespace llvm {
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namespace orc {
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class MapperJITLinkMemoryManager : public jitlink::JITLinkMemoryManager {
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public:
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MapperJITLinkMemoryManager(size_t ReservationGranularity,
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std::unique_ptr<MemoryMapper> Mapper);
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template <class MemoryMapperType, class... Args>
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static Expected<std::unique_ptr<MapperJITLinkMemoryManager>>
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CreateWithMapper(size_t ReservationGranularity, Args &&...A) {
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auto Mapper = MemoryMapperType::Create(std::forward<Args>(A)...);
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if (!Mapper)
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return Mapper.takeError();
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return std::make_unique<MapperJITLinkMemoryManager>(ReservationGranularity,
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std::move(*Mapper));
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}
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void allocate(const jitlink::JITLinkDylib *JD, jitlink::LinkGraph &G,
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OnAllocatedFunction OnAllocated) override;
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// synchronous overload
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using JITLinkMemoryManager::allocate;
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void deallocate(std::vector<FinalizedAlloc> Allocs,
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OnDeallocatedFunction OnDeallocated) override;
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// synchronous overload
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using JITLinkMemoryManager::deallocate;
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private:
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class InFlightAlloc;
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std::mutex Mutex;
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// We reserve multiples of this from the executor address space
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size_t ReservationUnits;
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// Ranges that have been reserved in executor but not yet allocated
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using AvailableMemoryMap = IntervalMap<ExecutorAddr, bool>;
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AvailableMemoryMap::Allocator AMAllocator;
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IntervalMap<ExecutorAddr, bool> AvailableMemory;
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// Ranges that have been reserved in executor and already allocated
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DenseMap<ExecutorAddr, ExecutorAddrDiff> UsedMemory;
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std::unique_ptr<MemoryMapper> Mapper;
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};
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} // end namespace orc
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} // end namespace llvm
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#endif // LLVM_EXECUTIONENGINE_ORC_MAPPERJITLINKMEMORYMANAGER_H
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