include/llvm/MC/MCWinCOFFStreamer.h

   1 //===- MCWinCOFFStreamer.h - COFF Object File Interface ---------*- 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_MCWINCOFFSTREAMER_H
  10 #define LLVM_MC_MCWINCOFFSTREAMER_H
  11
  12 #include "llvm/MC/MCDirectives.h"
  13 #include "llvm/MC/MCObjectStreamer.h"
  14
  15 namespace llvm {
  16
  17 class MCAsmBackend;
  18 class MCContext;
  19 class MCCodeEmitter;
  20 class MCInst;
  21 class MCSection;
  22 class MCSubtargetInfo;
  23 class MCSymbol;
  24 class StringRef;
  25 class raw_pwrite_stream;
  26
  27 class MCWinCOFFStreamer : public MCObjectStreamer {
  28 public:
  29   MCWinCOFFStreamer(MCContext &Context, std::unique_ptr<MCAsmBackend> MAB,
  30                     std::unique_ptr<MCCodeEmitter> CE,
  31                     std::unique_ptr<MCObjectWriter> OW);
  32
  33   /// state management
  34   void reset() override {
  35     CurSymbol = nullptr;
  36     MCObjectStreamer::reset();
  37   }
  38
  39   /// \name MCStreamer interface
  40   /// \{
  41
  42   void InitSections(bool NoExecStack) override;
  43   void EmitLabel(MCSymbol *Symbol, SMLoc Loc = SMLoc()) override;
  44   void EmitAssemblerFlag(MCAssemblerFlag Flag) override;
  45   void EmitThumbFunc(MCSymbol *Func) override;
  46   bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override;
  47   void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) override;
  48   void BeginCOFFSymbolDef(MCSymbol const *Symbol) override;
  49   void EmitCOFFSymbolStorageClass(int StorageClass) override;
  50   void EmitCOFFSymbolType(int Type) override;
  51   void EndCOFFSymbolDef() override;
  52   void EmitCOFFSafeSEH(MCSymbol const *Symbol) override;
  53   void EmitCOFFSymbolIndex(MCSymbol const *Symbol) override;
  54   void EmitCOFFSectionIndex(MCSymbol const *Symbol) override;
  55   void EmitCOFFSecRel32(MCSymbol const *Symbol, uint64_t Offset) override;
  56   void EmitCOFFImgRel32(MCSymbol const *Symbol, int64_t Offset) override;
  57   void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
  58                         unsigned ByteAlignment) override;
  59   void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
  60                              unsigned ByteAlignment) override;
  61   void EmitZerofill(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
  62                     unsigned ByteAlignment, SMLoc Loc = SMLoc()) override;
  63   void EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
  64                       unsigned ByteAlignment) override;
  65   void EmitIdent(StringRef IdentString) override;
  66   void EmitWinEHHandlerData(SMLoc Loc) override;
  67   void FinishImpl() override;
  68
  69   /// \}
  70
  71 protected:
  72   const MCSymbol *CurSymbol;
  73
  74   void EmitInstToData(const MCInst &Inst, const MCSubtargetInfo &STI) override;
  75
  76 private:
  77   void Error(const Twine &Msg) const;
  78 };
  79
  80 } // end namespace llvm
  81
  82 #endif // LLVM_MC_MCWINCOFFSTREAMER_H