//===- MCELFStreamer.h - MCStreamer ELF Object File Interface ---*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #ifndef LLVM_MC_MCELFSTREAMER_H #define LLVM_MC_MCELFSTREAMER_H #include "llvm/ADT/SmallPtrSet.h" #include "llvm/MC/MCDirectives.h" #include "llvm/MC/MCObjectStreamer.h" #include "llvm/MC/SectionKind.h" #include "llvm/Support/DataTypes.h" #include namespace llvm { class MCAsmBackend; class MCAssembler; class MCCodeEmitter; class MCExpr; class MCInst; class MCSymbol; class MCSymbolData; class raw_ostream; class MCELFStreamer : public MCObjectStreamer { public: MCELFStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS, MCCodeEmitter *Emitter) : MCObjectStreamer(Context, TAB, OS, Emitter), SeenIdent(false) {} MCELFStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS, MCCodeEmitter *Emitter, MCAssembler *Assembler) : MCObjectStreamer(Context, TAB, OS, Emitter, Assembler), SeenIdent(false) {} virtual ~MCELFStreamer(); /// @name MCStreamer Interface /// @{ virtual void InitSections(bool Force); virtual void ChangeSection(const MCSection *Section, const MCExpr *Subsection); virtual void EmitLabel(MCSymbol *Symbol); virtual void EmitDebugLabel(MCSymbol *Symbol); virtual void EmitAssemblerFlag(MCAssemblerFlag Flag); virtual void EmitThumbFunc(MCSymbol *Func); virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol); virtual bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute); virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue); virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size, unsigned ByteAlignment); virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol); virtual void EmitCOFFSymbolStorageClass(int StorageClass); virtual void EmitCOFFSymbolType(int Type); virtual void EndCOFFSymbolDef(); virtual MCSymbolData &getOrCreateSymbolData(MCSymbol *Symbol); virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value); virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size, unsigned ByteAlignment); virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0, uint64_t Size = 0, unsigned ByteAlignment = 0); virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol, uint64_t Size, unsigned ByteAlignment = 0); virtual void EmitValueImpl(const MCExpr *Value, unsigned Size); virtual void EmitFileDirective(StringRef Filename); virtual void EmitIdent(StringRef IdentString); virtual void EmitValueToAlignment(unsigned, int64_t, unsigned, unsigned); virtual void Flush(); virtual void FinishImpl(); private: virtual void EmitInstToFragment(const MCInst &Inst, const MCSubtargetInfo &); virtual void EmitInstToData(const MCInst &Inst, const MCSubtargetInfo &); virtual void EmitBundleAlignMode(unsigned AlignPow2); virtual void EmitBundleLock(bool AlignToEnd); virtual void EmitBundleUnlock(); void fixSymbolsInTLSFixups(const MCExpr *expr); bool SeenIdent; struct LocalCommon { MCSymbolData *SD; uint64_t Size; unsigned ByteAlignment; }; std::vector LocalCommons; SmallPtrSet BindingExplicitlySet; }; MCELFStreamer *createARMELFStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS, MCCodeEmitter *Emitter, bool RelaxAll, bool NoExecStack, bool IsThumb); } // end namespace llvm #endif