-class MCELFStreamer : public MCObjectStreamer {
-public:
- MCELFStreamer(MCContext &Context, TargetAsmBackend &TAB,
- raw_ostream &OS, MCCodeEmitter *Emitter)
- : MCObjectStreamer(Context, TAB, OS, Emitter, false) {}
-
- ~MCELFStreamer() {}
-
- /// @name MCStreamer Interface
- /// @{
-
- virtual void InitSections();
- virtual void EmitLabel(MCSymbol *Symbol);
- virtual void EmitAssemblerFlag(MCAssemblerFlag Flag);
- virtual void EmitThumbFunc(MCSymbol *Func);
- virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value);
- virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol);
- virtual void SwitchSection(const MCSection *Section);
- virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
- virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
- assert(0 && "ELF doesn't support this directive");
- }
- virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
- unsigned ByteAlignment);
- virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol) {
- assert(0 && "ELF doesn't support this directive");
- }
-
- virtual void EmitCOFFSymbolStorageClass(int StorageClass) {
- assert(0 && "ELF doesn't support this directive");
- }
-
- virtual void EmitCOFFSymbolType(int Type) {
- assert(0 && "ELF doesn't support this directive");
- }
-
- virtual void EndCOFFSymbolDef() {
- assert(0 && "ELF doesn't support this directive");
- }
-
- virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
- MCSymbolData &SD = getAssembler().getOrCreateSymbolData(*Symbol);
- SD.setSize(Value);
- }
-
- virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size) {
- assert(0 && "ELF doesn't support this directive");
- }
- virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
- unsigned Size = 0, unsigned ByteAlignment = 0) {
- assert(0 && "ELF doesn't support this directive");
- }
- virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
- uint64_t Size, unsigned ByteAlignment = 0) {
- assert(0 && "ELF doesn't support this directive");
- }
- virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
- virtual void EmitValue(const MCExpr *Value, unsigned Size,unsigned AddrSpace);
- virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
- unsigned ValueSize = 1,
- unsigned MaxBytesToEmit = 0);
- virtual void EmitCodeAlignment(unsigned ByteAlignment,
- unsigned MaxBytesToEmit = 0);
- virtual void EmitValueToOffset(const MCExpr *Offset,
- unsigned char Value = 0);
-
- virtual void EmitFileDirective(StringRef Filename);
-
- virtual void Finish();
-
-private:
- virtual void EmitInstToFragment(const MCInst &Inst);
- virtual void EmitInstToData(const MCInst &Inst);
-
- void fixSymbolsInTLSFixups(const MCExpr *expr);
-
- struct LocalCommon {
- MCSymbolData *SD;
- uint64_t Size;
- unsigned ByteAlignment;
- };
- std::vector<LocalCommon> LocalCommons;
-
- SmallPtrSet<MCSymbol *, 16> BindingExplicitlySet;
- /// @}
- void SetSection(StringRef Section, unsigned Type, unsigned Flags,
- SectionKind Kind) {
- SwitchSection(getContext().getELFSection(Section, Type, Flags, Kind));
- }
-
- void SetSectionData() {
- SetSection(".data", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_WRITE |MCSectionELF::SHF_ALLOC,
- SectionKind::getDataRel());
- EmitCodeAlignment(4, 0);
- }
- void SetSectionText() {
- SetSection(".text", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_EXECINSTR |
- MCSectionELF::SHF_ALLOC, SectionKind::getText());
- EmitCodeAlignment(4, 0);
- }
- void SetSectionBss() {
- SetSection(".bss", MCSectionELF::SHT_NOBITS,
- MCSectionELF::SHF_WRITE |
- MCSectionELF::SHF_ALLOC, SectionKind::getBSS());
- EmitCodeAlignment(4, 0);
- }
-};
-
-} // end anonymous namespace.
-