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