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      1 //===- llvm/MC/MCWinCOFFObjectWriter.h - Win COFF Object Writer -*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 #ifndef LLVM_MC_MCWINCOFFOBJECTWRITER_H
     11 #define LLVM_MC_MCWINCOFFOBJECTWRITER_H
     12 
     13 #include <memory>
     14 
     15 namespace llvm {
     16 
     17 class MCAsmBackend;
     18 class MCContext;
     19 class MCFixup;
     20 class MCObjectWriter;
     21 class MCValue;
     22 class raw_pwrite_stream;
     23 
     24   class MCWinCOFFObjectTargetWriter {
     25     virtual void anchor();
     26 
     27     const unsigned Machine;
     28 
     29   protected:
     30     MCWinCOFFObjectTargetWriter(unsigned Machine_);
     31 
     32   public:
     33     virtual ~MCWinCOFFObjectTargetWriter() = default;
     34 
     35     unsigned getMachine() const { return Machine; }
     36     virtual unsigned getRelocType(MCContext &Ctx, const MCValue &Target,
     37                                   const MCFixup &Fixup, bool IsCrossSection,
     38                                   const MCAsmBackend &MAB) const = 0;
     39     virtual bool recordRelocation(const MCFixup &) const { return true; }
     40   };
     41 
     42   /// \brief Construct a new Win COFF writer instance.
     43   ///
     44   /// \param MOTW - The target specific WinCOFF writer subclass.
     45   /// \param OS - The stream to write to.
     46   /// \returns The constructed object writer.
     47   std::unique_ptr<MCObjectWriter>
     48   createWinCOFFObjectWriter(std::unique_ptr<MCWinCOFFObjectTargetWriter> MOTW,
     49                             raw_pwrite_stream &OS);
     50 } // end namespace llvm
     51 
     52 #endif // LLVM_MC_MCWINCOFFOBJECTWRITER_H
     53