MCRelocationInfo.h

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//===- llvm/MC/MCRelocationInfo.h -------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file declares the MCRelocationInfo class, which provides methods to
// create MCExprs from relocations, either found in an object::ObjectFile
// (object::RelocationRef), or provided through the C API.
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_MC_MCDISASSEMBLER_MCRELOCATIONINFO_H
#define LLVM_MC_MCDISASSEMBLER_MCRELOCATIONINFO_H
 
#include "llvm/Support/Compiler.h"
 
namespace llvm {
 
class MCContext;
class MCExpr;
 
/// Create MCExprs from relocations found in an object file.
class LLVM_ABI MCRelocationInfo {
protected:
  MCContext &Ctx;
 
public:
  MCRelocationInfo(MCContext &Ctx);
  MCRelocationInfo(const MCRelocationInfo &) = delete;
  MCRelocationInfo &operator=(const MCRelocationInfo &) = delete;
  virtual ~MCRelocationInfo();
 
  /// Create an MCExpr for the target-specific \p VariantKind.
  /// The VariantKinds are defined in llvm-c/Disassembler.h.
  /// Used by MCExternalSymbolizer.
  /// \returns If possible, an MCExpr corresponding to VariantKind, else 0.
  virtual const MCExpr *createExprForCAPIVariantKind(const MCExpr *SubExpr,
                                                     unsigned VariantKind);
};
 
} // end namespace llvm
 
#endif // LLVM_MC_MCDISASSEMBLER_MCRELOCATIONINFO_H