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"
17 #include "llvm/Support/DataTypes.h"
31 class MCELFStreamer : public MCObjectStreamer {
33 MCELFStreamer(MCContext &Context, MCAsmBackend &TAB,
34 raw_ostream &OS, MCCodeEmitter *Emitter)
35 : MCObjectStreamer(Context, TAB, OS, Emitter) {}
37 MCELFStreamer(MCContext &Context, MCAsmBackend &TAB,
38 raw_ostream &OS, MCCodeEmitter *Emitter,
39 MCAssembler *Assembler)
40 : MCObjectStreamer(Context, TAB, OS, Emitter, Assembler) {}
42 virtual ~MCELFStreamer();
44 /// @name MCStreamer Interface
47 virtual void InitSections();
48 virtual void ChangeSection(const MCSection *Section);
49 virtual void EmitLabel(MCSymbol *Symbol);
50 virtual void EmitAssemblerFlag(MCAssemblerFlag Flag);
51 virtual void EmitThumbFunc(MCSymbol *Func);
52 virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol);
53 virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
54 virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue);
55 virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
56 unsigned ByteAlignment);
57 virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol);
58 virtual void EmitCOFFSymbolStorageClass(int StorageClass);
59 virtual void EmitCOFFSymbolType(int Type);
60 virtual void EndCOFFSymbolDef();
62 virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value);
64 virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
65 unsigned ByteAlignment);
67 virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
68 uint64_t Size = 0, unsigned ByteAlignment = 0);
69 virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
70 uint64_t Size, unsigned ByteAlignment = 0);
71 virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
74 virtual void EmitFileDirective(StringRef Filename);
76 virtual void EmitTCEntry(const MCSymbol &S);
78 virtual void FinishImpl();
82 virtual void EmitInstToFragment(const MCInst &Inst);
83 virtual void EmitInstToData(const MCInst &Inst);
85 void fixSymbolsInTLSFixups(const MCExpr *expr);
90 unsigned ByteAlignment;
93 std::vector<LocalCommon> LocalCommons;
95 SmallPtrSet<MCSymbol *, 16> BindingExplicitlySet;
98 void SetSection(StringRef Section, unsigned Type, unsigned Flags,
100 void SetSectionData();
101 void SetSectionText();
102 void SetSectionBss();
105 } // end namespace llvm