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