1 //===- RelocVisitor.h - Visitor for object file relocations -----*- 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 // This file provides a wrapper around all the different types of relocations 10 // in different file formats, such that a client can handle them in a unified 11 // manner by only implementing a minimal number of functions. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_OBJECT_RELOCATIONRESOLVER_H 16 #define LLVM_OBJECT_RELOCATIONRESOLVER_H 17 18 #include "llvm/ADT/Triple.h" 19 #include "llvm/BinaryFormat/ELF.h" 20 #include "llvm/BinaryFormat/MachO.h" 21 #include "llvm/Object/COFF.h" 22 #include "llvm/Object/ELFObjectFile.h" 23 #include "llvm/Object/MachO.h" 24 #include "llvm/Object/ObjectFile.h" 25 #include "llvm/Object/Wasm.h" 26 #include "llvm/Support/Casting.h" 27 #include "llvm/Support/ErrorHandling.h" 28 #include <cstdint> 29 #include <system_error> 30 31 namespace llvm { 32 namespace object { 33 34 using SupportsRelocation = bool (*)(uint64_t); 35 using RelocationResolver = uint64_t (*)(uint64_t Type, uint64_t Offset, 36 uint64_t S, uint64_t LocData, 37 int64_t Addend); 38 39 std::pair<SupportsRelocation, RelocationResolver> 40 getRelocationResolver(const ObjectFile &Obj); 41 42 uint64_t resolveRelocation(RelocationResolver Resolver, const RelocationRef &R, 43 uint64_t S, uint64_t LocData); 44 45 } // end namespace object 46 } // end namespace llvm 47 48 #endif // LLVM_OBJECT_RELOCATIONRESOLVER_H 49