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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===--------------- MapperJITLinkMemoryManager.h -*- C++ -*---------------===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // Implements JITLinkMemoryManager using MemoryMapper |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |||
| 13 | #ifndef LLVM_EXECUTIONENGINE_ORC_MAPPERJITLINKMEMORYMANAGER_H |
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| 14 | #define LLVM_EXECUTIONENGINE_ORC_MAPPERJITLINKMEMORYMANAGER_H |
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| 15 | |||
| 16 | #include "llvm/ADT/IntervalMap.h" |
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| 17 | #include "llvm/ExecutionEngine/JITLink/JITLinkMemoryManager.h" |
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| 18 | #include "llvm/ExecutionEngine/Orc/MemoryMapper.h" |
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| 19 | |||
| 20 | namespace llvm { |
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| 21 | namespace orc { |
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| 22 | |||
| 23 | class MapperJITLinkMemoryManager : public jitlink::JITLinkMemoryManager { |
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| 24 | public: |
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| 25 | MapperJITLinkMemoryManager(size_t ReservationGranularity, |
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| 26 | std::unique_ptr<MemoryMapper> Mapper); |
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| 27 | |||
| 28 | template <class MemoryMapperType, class... Args> |
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| 29 | static Expected<std::unique_ptr<MapperJITLinkMemoryManager>> |
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| 30 | CreateWithMapper(size_t ReservationGranularity, Args &&...A) { |
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| 31 | auto Mapper = MemoryMapperType::Create(std::forward<Args>(A)...); |
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| 32 | if (!Mapper) |
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| 33 | return Mapper.takeError(); |
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| 34 | |||
| 35 | return std::make_unique<MapperJITLinkMemoryManager>(ReservationGranularity, |
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| 36 | std::move(*Mapper)); |
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| 37 | } |
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| 38 | |||
| 39 | void allocate(const jitlink::JITLinkDylib *JD, jitlink::LinkGraph &G, |
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| 40 | OnAllocatedFunction OnAllocated) override; |
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| 41 | // synchronous overload |
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| 42 | using JITLinkMemoryManager::allocate; |
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| 43 | |||
| 44 | void deallocate(std::vector<FinalizedAlloc> Allocs, |
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| 45 | OnDeallocatedFunction OnDeallocated) override; |
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| 46 | // synchronous overload |
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| 47 | using JITLinkMemoryManager::deallocate; |
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| 48 | |||
| 49 | private: |
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| 50 | class InFlightAlloc; |
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| 51 | |||
| 52 | std::mutex Mutex; |
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| 53 | |||
| 54 | // We reserve multiples of this from the executor address space |
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| 55 | size_t ReservationUnits; |
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| 56 | |||
| 57 | // Ranges that have been reserved in executor but not yet allocated |
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| 58 | using AvailableMemoryMap = IntervalMap<ExecutorAddr, bool>; |
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| 59 | AvailableMemoryMap::Allocator AMAllocator; |
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| 60 | IntervalMap<ExecutorAddr, bool> AvailableMemory; |
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| 61 | |||
| 62 | // Ranges that have been reserved in executor and already allocated |
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| 63 | DenseMap<ExecutorAddr, ExecutorAddrDiff> UsedMemory; |
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| 64 | |||
| 65 | std::unique_ptr<MemoryMapper> Mapper; |
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| 66 | }; |
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| 67 | |||
| 68 | } // end namespace orc |
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| 69 | } // end namespace llvm |
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| 70 | |||
| 71 | #endif // LLVM_EXECUTIONENGINE_ORC_MAPPERJITLINKMEMORYMANAGER_H |