| 1 | //===- bolt/Rewrite/JITLinkLinker.h - Linker using JITLink ------*- 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 | // BOLTLinker using JITLink. |
| 10 | // |
| 11 | //===----------------------------------------------------------------------===// |
| 12 | |
| 13 | #ifndef BOLT_REWRITE_JITLINK_LINKER_H |
| 14 | #define BOLT_REWRITE_JITLINK_LINKER_H |
| 15 | |
| 16 | #include "bolt/Core/Linker.h" |
| 17 | #include "bolt/Rewrite/ExecutableFileMemoryManager.h" |
| 18 | #include "llvm/ExecutionEngine/JITLink/JITLinkDylib.h" |
| 19 | |
| 20 | #include <memory> |
| 21 | #include <vector> |
| 22 | |
| 23 | namespace llvm { |
| 24 | namespace bolt { |
| 25 | |
| 26 | class BinaryContext; |
| 27 | |
| 28 | class JITLinkLinker : public BOLTLinker { |
| 29 | private: |
| 30 | struct Context; |
| 31 | friend struct Context; |
| 32 | |
| 33 | BinaryContext &BC; |
| 34 | std::unique_ptr<ExecutableFileMemoryManager> MM; |
| 35 | jitlink::JITLinkDylib Dylib{"main"}; |
| 36 | std::vector<ExecutableFileMemoryManager::FinalizedAlloc> Allocs; |
| 37 | StringMap<SymbolInfo> Symtab; |
| 38 | |
| 39 | public: |
| 40 | JITLinkLinker(BinaryContext &BC, |
| 41 | std::unique_ptr<ExecutableFileMemoryManager> MM); |
| 42 | ~JITLinkLinker(); |
| 43 | |
| 44 | void loadObject(MemoryBufferRef Obj, SectionsMapper MapSections) override; |
| 45 | std::optional<SymbolInfo> lookupSymbolInfo(StringRef Name) const override; |
| 46 | |
| 47 | static SmallVector<jitlink::Block *, 2> |
| 48 | orderedBlocks(const jitlink::Section &Section); |
| 49 | static size_t sectionSize(const jitlink::Section &Section); |
| 50 | }; |
| 51 | |
| 52 | } // namespace bolt |
| 53 | } // namespace llvm |
| 54 | |
| 55 | #endif // BOLT_REWRITE_JITLINK_LINKER_H |
| 56 |