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,
+ MCELFStreamer(MCContext &Context, MCAsmBackend &TAB, raw_pwrite_stream &OS,
MCCodeEmitter *Emitter)
- : MCObjectStreamer(Context, TAB, OS, Emitter),
- SeenIdent(false) {}
+ : 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) {}
+ ~MCELFStreamer() override;
- virtual ~MCELFStreamer();
+ /// state management
+ void reset() override {
+ SeenIdent = false;
+ BundleGroups.clear();
+ MCObjectStreamer::reset();
+ }
- /// @name MCStreamer Interface
+ /// \name MCStreamer Interface
/// @{
- void InitSections() override;
- void ChangeSection(const MCSection *Section,
- const MCExpr *Subsection) override;
+ void InitSections(bool NoExecStack) override;
+ void ChangeSection(MCSection *Section, const MCExpr *Subsection) override;
void EmitLabel(MCSymbol *Symbol) override;
- void EmitDebugLabel(MCSymbol *Symbol) override;
void EmitAssemblerFlag(MCAssemblerFlag Flag) override;
void EmitThumbFunc(MCSymbol *Func) override;
void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) override;
void EmitCOFFSymbolType(int Type) override;
void EndCOFFSymbolDef() override;
- MCSymbolData &getOrCreateSymbolData(const MCSymbol *Symbol) override;
-
- void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) override;
+ void emitELFSize(MCSymbolELF *Symbol, const MCExpr *Value) override;
void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment) override;
- void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
+ void EmitZerofill(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) override;
+ void EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment = 0) override;
+ void EmitValueImpl(const MCExpr *Value, unsigned Size,
+ SMLoc Loc = SMLoc()) override;
void EmitFileDirective(StringRef Filename) override;
void EmitValueToAlignment(unsigned, int64_t, unsigned, unsigned) override;
- void Flush() override;
-
void FinishImpl() override;
void EmitBundleAlignMode(unsigned AlignPow2) override;
void EmitBundleUnlock() override;
private:
+ bool isBundleLocked() const;
void EmitInstToFragment(const MCInst &Inst, const MCSubtargetInfo &) override;
void EmitInstToData(const MCInst &Inst, const MCSubtargetInfo &) override;
void fixSymbolsInTLSFixups(const MCExpr *expr);
- bool SeenIdent;
+ /// \brief Merge the content of the fragment \p EF into the fragment \p DF.
+ void mergeFragment(MCDataFragment *, MCDataFragment *);
- struct LocalCommon {
- MCSymbolData *SD;
- uint64_t Size;
- unsigned ByteAlignment;
- };
-
- std::vector<LocalCommon> LocalCommons;
+ bool SeenIdent;
- SmallPtrSet<MCSymbol *, 16> BindingExplicitlySet;
+ /// BundleGroups - The stack of fragments holding the bundle-locked
+ /// instructions.
+ llvm::SmallVector<MCDataFragment *, 4> BundleGroups;
};
MCELFStreamer *createARMELFStreamer(MCContext &Context, MCAsmBackend &TAB,
- raw_ostream &OS, MCCodeEmitter *Emitter,
- bool RelaxAll, bool NoExecStack,
+ raw_pwrite_stream &OS,
+ MCCodeEmitter *Emitter, bool RelaxAll,
bool IsThumb);
} // end namespace llvm