| 1 | //===---------------- SimpleExecutorMemoryManager.h -------------*- C++ -*-===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | // |
| 9 | // A simple allocator class suitable for basic remote-JIT use. |
| 10 | // |
| 11 | // FIXME: The functionality in this file should be moved to the ORC runtime. |
| 12 | // |
| 13 | //===----------------------------------------------------------------------===// |
| 14 | |
| 15 | #ifndef LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_SIMPLEEXECUTORMEMORYMANAGER_H |
| 16 | #define LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_SIMPLEEXECUTORMEMORYMANAGER_H |
| 17 | |
| 18 | #include "llvm/ADT/DenseMap.h" |
| 19 | #include "llvm/ExecutionEngine/Orc/Shared/ExecutorAddress.h" |
| 20 | #include "llvm/ExecutionEngine/Orc/Shared/TargetProcessControlTypes.h" |
| 21 | #include "llvm/ExecutionEngine/Orc/Shared/WrapperFunctionUtils.h" |
| 22 | #include "llvm/ExecutionEngine/Orc/TargetProcess/ExecutorBootstrapService.h" |
| 23 | #include "llvm/Support/Error.h" |
| 24 | |
| 25 | #include <mutex> |
| 26 | |
| 27 | namespace llvm { |
| 28 | namespace orc { |
| 29 | namespace rt_bootstrap { |
| 30 | |
| 31 | /// Simple page-based allocator. |
| 32 | class SimpleExecutorMemoryManager : public ExecutorBootstrapService { |
| 33 | public: |
| 34 | virtual ~SimpleExecutorMemoryManager(); |
| 35 | |
| 36 | Expected<ExecutorAddr> allocate(uint64_t Size); |
| 37 | Error finalize(tpctypes::FinalizeRequest &FR); |
| 38 | Error deallocate(const std::vector<ExecutorAddr> &Bases); |
| 39 | |
| 40 | Error shutdown() override; |
| 41 | void addBootstrapSymbols(StringMap<ExecutorAddr> &M) override; |
| 42 | |
| 43 | private: |
| 44 | struct Allocation { |
| 45 | size_t Size = 0; |
| 46 | std::vector<shared::WrapperFunctionCall> DeallocationActions; |
| 47 | }; |
| 48 | |
| 49 | using AllocationsMap = DenseMap<void *, Allocation>; |
| 50 | |
| 51 | Error deallocateImpl(void *Base, Allocation &A); |
| 52 | |
| 53 | static llvm::orc::shared::CWrapperFunctionResult |
| 54 | reserveWrapper(const char *ArgData, size_t ArgSize); |
| 55 | |
| 56 | static llvm::orc::shared::CWrapperFunctionResult |
| 57 | finalizeWrapper(const char *ArgData, size_t ArgSize); |
| 58 | |
| 59 | static llvm::orc::shared::CWrapperFunctionResult |
| 60 | deallocateWrapper(const char *ArgData, size_t ArgSize); |
| 61 | |
| 62 | std::mutex M; |
| 63 | AllocationsMap Allocations; |
| 64 | }; |
| 65 | |
| 66 | } // end namespace rt_bootstrap |
| 67 | } // end namespace orc |
| 68 | } // end namespace llvm |
| 69 | |
| 70 | #endif // LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_SIMPLEEXECUTORMEMORYMANAGER_H |
| 71 |