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llvm-mirror/include/llvm/MC/MCWinCOFFObjectWriter.h
Lang Hames 9dd3fd5480 [MC] Thread unique_ptr<MCObjectWriter> through the create.*ObjectWriter
functions.

This makes the ownership of the resulting MCObjectWriter clear, and allows us
to remove one instance of MCObjectStreamer's bizarre "holding ownership via
someone else's reference" trick.

llvm-svn: 315327
2017-10-10 16:28:07 +00:00

53 lines
1.6 KiB
C++

//===- llvm/MC/MCWinCOFFObjectWriter.h - Win COFF Object Writer -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_MC_MCWINCOFFOBJECTWRITER_H
#define LLVM_MC_MCWINCOFFOBJECTWRITER_H
#include <memory>
namespace llvm {
class MCAsmBackend;
class MCContext;
class MCFixup;
class MCObjectWriter;
class MCValue;
class raw_pwrite_stream;
class MCWinCOFFObjectTargetWriter {
virtual void anchor();
const unsigned Machine;
protected:
MCWinCOFFObjectTargetWriter(unsigned Machine_);
public:
virtual ~MCWinCOFFObjectTargetWriter() = default;
unsigned getMachine() const { return Machine; }
virtual unsigned getRelocType(MCContext &Ctx, const MCValue &Target,
const MCFixup &Fixup, bool IsCrossSection,
const MCAsmBackend &MAB) const = 0;
virtual bool recordRelocation(const MCFixup &) const { return true; }
};
/// \brief Construct a new Win COFF writer instance.
///
/// \param MOTW - The target specific WinCOFF writer subclass.
/// \param OS - The stream to write to.
/// \returns The constructed object writer.
std::unique_ptr<MCObjectWriter>
createWinCOFFObjectWriter(std::unique_ptr<MCWinCOFFObjectTargetWriter> MOTW,
raw_pwrite_stream &OS);
} // end namespace llvm
#endif // LLVM_MC_MCWINCOFFOBJECTWRITER_H