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  1. //===- llvm/MC/MCRelocationInfo.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. // This file declares the MCRelocationInfo class, which provides methods to
  10. // create MCExprs from relocations, either found in an object::ObjectFile
  11. // (object::RelocationRef), or provided through the C API.
  12. //
  13. //===----------------------------------------------------------------------===//
  14.  
  15. #ifndef LLVM_MC_MCDISASSEMBLER_MCRELOCATIONINFO_H
  16. #define LLVM_MC_MCDISASSEMBLER_MCRELOCATIONINFO_H
  17.  
  18. namespace llvm {
  19.  
  20. class MCContext;
  21. class MCExpr;
  22.  
  23. /// Create MCExprs from relocations found in an object file.
  24. class MCRelocationInfo {
  25. protected:
  26.   MCContext &Ctx;
  27.  
  28. public:
  29.   MCRelocationInfo(MCContext &Ctx);
  30.   MCRelocationInfo(const MCRelocationInfo &) = delete;
  31.   MCRelocationInfo &operator=(const MCRelocationInfo &) = delete;
  32.   virtual ~MCRelocationInfo();
  33.  
  34.   /// Create an MCExpr for the target-specific \p VariantKind.
  35.   /// The VariantKinds are defined in llvm-c/Disassembler.h.
  36.   /// Used by MCExternalSymbolizer.
  37.   /// \returns If possible, an MCExpr corresponding to VariantKind, else 0.
  38.   virtual const MCExpr *createExprForCAPIVariantKind(const MCExpr *SubExpr,
  39.                                                      unsigned VariantKind);
  40. };
  41.  
  42. } // end namespace llvm
  43.  
  44. #endif // LLVM_MC_MCDISASSEMBLER_MCRELOCATIONINFO_H
  45.