1 //===- MCELFStreamer.h - MCStreamer ELF Object File Interface ---*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef LLVM_MC_MCELFSTREAMER_H
11 #define LLVM_MC_MCELFSTREAMER_H
13 #include "llvm/ADT/SmallPtrSet.h"
14 #include "llvm/MC/MCDirectives.h"
15 #include "llvm/MC/MCObjectStreamer.h"
16 #include "llvm/MC/SectionKind.h"
32 class MCELFStreamer : public MCObjectStreamer {
34 MCELFStreamer(MCContext &Context, MCAsmBackend &TAB,
35 raw_ostream &OS, MCCodeEmitter *Emitter)
36 : MCObjectStreamer(Context, TAB, OS, Emitter) {}
38 MCELFStreamer(MCContext &Context, MCAsmBackend &TAB,
39 raw_ostream &OS, MCCodeEmitter *Emitter,
40 MCAssembler *Assembler)
41 : MCObjectStreamer(Context, TAB, OS, Emitter, Assembler) {}
43 virtual ~MCELFStreamer();
45 /// @name MCStreamer Interface
48 virtual void InitSections();
49 virtual void ChangeSection(const MCSection *Section);
50 virtual void EmitLabel(MCSymbol *Symbol);
51 virtual void EmitAssemblerFlag(MCAssemblerFlag Flag);
52 virtual void EmitThumbFunc(MCSymbol *Func);
53 virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value);
54 virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol);
55 virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
56 virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue);
57 virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
58 unsigned ByteAlignment);
59 virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol);
60 virtual void EmitCOFFSymbolStorageClass(int StorageClass);
61 virtual void EmitCOFFSymbolType(int Type);
62 virtual void EndCOFFSymbolDef();
64 virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value);
66 virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
67 unsigned ByteAlignment);
69 virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
70 uint64_t Size = 0, unsigned ByteAlignment = 0);
71 virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
72 uint64_t Size, unsigned ByteAlignment = 0);
73 virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
76 virtual void EmitFileDirective(StringRef Filename);
78 virtual void EmitTCEntry(const MCSymbol &S);
80 virtual void FinishImpl();
84 virtual void EmitInstToFragment(const MCInst &Inst);
85 virtual void EmitInstToData(const MCInst &Inst);
87 void fixSymbolsInTLSFixups(const MCExpr *expr);
92 unsigned ByteAlignment;
95 std::vector<LocalCommon> LocalCommons;
97 SmallPtrSet<MCSymbol *, 16> BindingExplicitlySet;
100 void SetSection(StringRef Section, unsigned Type, unsigned Flags,
102 void SetSectionData();
103 void SetSectionText();
104 void SetSectionBss();
107 } // end namespace llvm