| //===- 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 <vector> |
| |
| 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 |
| /// @{ |
| |
| void InitSections() override; |
| void ChangeSection(const MCSection *Section, |
| const MCExpr *Subsection) override; |
| void EmitLabel(MCSymbol *Symbol) override; |
| void EmitAssemblerFlag(MCAssemblerFlag Flag) override; |
| void EmitThumbFunc(MCSymbol *Func) override; |
| void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) override; |
| bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override; |
| void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) override; |
| void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size, |
| unsigned ByteAlignment) override; |
| void BeginCOFFSymbolDef(const MCSymbol *Symbol) override; |
| void EmitCOFFSymbolStorageClass(int StorageClass) override; |
| void EmitCOFFSymbolType(int Type) override; |
| void EndCOFFSymbolDef() override; |
| |
| void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) override; |
| |
| void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size, |
| unsigned ByteAlignment) override; |
| |
| void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = nullptr, |
| uint64_t Size = 0, unsigned ByteAlignment = 0) override; |
| void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol, |
| uint64_t Size, unsigned ByteAlignment = 0) override; |
| void EmitValueImpl(const MCExpr *Value, unsigned Size, |
| const SMLoc &Loc = SMLoc()) override; |
| |
| void EmitFileDirective(StringRef Filename) override; |
| |
| void EmitIdent(StringRef IdentString) override; |
| |
| void EmitValueToAlignment(unsigned, int64_t, unsigned, unsigned) override; |
| |
| void Flush() override; |
| |
| void FinishImpl() override; |
| |
| void EmitBundleAlignMode(unsigned AlignPow2) override; |
| void EmitBundleLock(bool AlignToEnd) override; |
| void EmitBundleUnlock() override; |
| |
| private: |
| void EmitInstToFragment(const MCInst &Inst, const MCSubtargetInfo &) override; |
| void EmitInstToData(const MCInst &Inst, const MCSubtargetInfo &) override; |
| |
| void fixSymbolsInTLSFixups(const MCExpr *expr); |
| |
| bool SeenIdent; |
| |
| struct LocalCommon { |
| MCSymbolData *SD; |
| uint64_t Size; |
| unsigned ByteAlignment; |
| }; |
| |
| std::vector<LocalCommon> LocalCommons; |
| |
| SmallPtrSet<MCSymbol *, 16> BindingExplicitlySet; |
| }; |
| |
| MCELFStreamer *createARMELFStreamer(MCContext &Context, MCAsmBackend &TAB, |
| raw_ostream &OS, MCCodeEmitter *Emitter, |
| bool RelaxAll, bool NoExecStack, |
| bool IsThumb); |
| |
| } // end namespace llvm |
| |
| #endif |