1 //===- llvm/MC/MCWinCOFFObjectWriter.h - Win COFF Object Writer -*- 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 #ifndef LLVM_MC_MCWINCOFFOBJECTWRITER_H 10 #define LLVM_MC_MCWINCOFFOBJECTWRITER_H 11 12 #include "llvm/MC/MCObjectWriter.h" 13 #include <memory> 14 15 namespace llvm { 16 17 class MCAsmBackend; 18 class MCContext; 19 class MCFixup; 20 class MCValue; 21 class raw_pwrite_stream; 22 23 class MCWinCOFFObjectTargetWriter : public MCObjectTargetWriter { 24 virtual void anchor(); 25 26 const unsigned Machine; 27 28 protected: 29 MCWinCOFFObjectTargetWriter(unsigned Machine_); 30 31 public: 32 virtual ~MCWinCOFFObjectTargetWriter() = default; 33 getFormat()34 virtual Triple::ObjectFormatType getFormat() const { return Triple::COFF; } classof(const MCObjectTargetWriter * W)35 static bool classof(const MCObjectTargetWriter *W) { 36 return W->getFormat() == Triple::COFF; 37 } 38 getMachine()39 unsigned getMachine() const { return Machine; } 40 virtual unsigned getRelocType(MCContext &Ctx, const MCValue &Target, 41 const MCFixup &Fixup, bool IsCrossSection, 42 const MCAsmBackend &MAB) const = 0; recordRelocation(const MCFixup &)43 virtual bool recordRelocation(const MCFixup &) const { return true; } 44 }; 45 46 /// Construct a new Win COFF writer instance. 47 /// 48 /// \param MOTW - The target specific WinCOFF writer subclass. 49 /// \param OS - The stream to write to. 50 /// \returns The constructed object writer. 51 std::unique_ptr<MCObjectWriter> 52 createWinCOFFObjectWriter(std::unique_ptr<MCWinCOFFObjectTargetWriter> MOTW, 53 raw_pwrite_stream &OS); 54 } // end namespace llvm 55 56 #endif // LLVM_MC_MCWINCOFFOBJECTWRITER_H 57