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