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/Support/Compiler.h" 19 #include <cstdint> 20 #include <utility> 21 22 namespace llvm { 23 namespace object { 24 25 class ObjectFile; 26 class RelocationRef; 27 28 using SupportsRelocation = bool (*)(uint64_t); 29 using RelocationResolver = uint64_t (*)(uint64_t Type, uint64_t Offset, 30 uint64_t S, uint64_t LocData, 31 int64_t Addend); 32 33 LLVM_ABI std::pair<SupportsRelocation, RelocationResolver> 34 getRelocationResolver(const ObjectFile &Obj); 35 36 LLVM_ABI uint64_t resolveRelocation(RelocationResolver Resolver, 37 const RelocationRef &R, uint64_t S, 38 uint64_t LocData); 39 40 } // end namespace object 41 } // end namespace llvm 42 43 #endif // LLVM_OBJECT_RELOCATIONRESOLVER_H 44