- virtual void EmitDebugLabel(MCSymbol *Symbol) {
- EmitLabel(Symbol);
- }
- virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
- // FIXME: should we handle aliases?
- markDefined(*Symbol);
- }
- virtual bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) {
- if (Attribute == MCSA_Global)
- markGlobal(*Symbol);
- return true;
- }
- virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol,
- uint64_t Size , unsigned ByteAlignment) {
- markDefined(*Symbol);
- }
- virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
- unsigned ByteAlignment) {
- markDefined(*Symbol);
- }
-
- virtual void EmitBundleAlignMode(unsigned AlignPow2) {}
- virtual void EmitBundleLock(bool AlignToEnd) {}
- virtual void EmitBundleUnlock() {}
-
- // Noop calls.
- virtual void ChangeSection(const MCSection *Section,
- const MCExpr *Subsection) {}
- virtual void InitToTextSection() {}
- virtual void InitSections() {}
- virtual void EmitAssemblerFlag(MCAssemblerFlag Flag) {}
- virtual void EmitThumbFunc(MCSymbol *Func) {}
- virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {}
- virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) {}
- virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol) {}
- virtual void EmitCOFFSymbolStorageClass(int StorageClass) {}
- virtual void EmitCOFFSymbolType(int Type) {}
- virtual void EndCOFFSymbolDef() {}
- virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {}
- virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
- unsigned ByteAlignment) {}
- virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
- uint64_t Size, unsigned ByteAlignment) {}
- virtual void EmitBytes(StringRef Data) {}
- virtual void EmitValueImpl(const MCExpr *Value, unsigned Size) {}
- virtual void EmitULEB128Value(const MCExpr *Value) {}
- virtual void EmitSLEB128Value(const MCExpr *Value) {}
- virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value,
- unsigned ValueSize,
- unsigned MaxBytesToEmit) {}
- virtual void EmitCodeAlignment(unsigned ByteAlignment,
- unsigned MaxBytesToEmit) {}
- virtual bool EmitValueToOffset(const MCExpr *Offset,
- unsigned char Value ) { return false; }
- virtual void EmitFileDirective(StringRef Filename) {}
- virtual void EmitDwarfAdvanceLineAddr(int64_t LineDelta,
- const MCSymbol *LastLabel,
- const MCSymbol *Label,
- unsigned PointerSize) {}
- virtual void FinishImpl() {}
- virtual void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
- RecordProcEnd(Frame);
- }
- };
-} // end anonymous namespace
-
-/// addAsmGlobalSymbols - Add global symbols from module-level ASM to the
-/// defined or undefined lists.
-bool LTOModule::addAsmGlobalSymbols(std::string &errMsg) {
- const std::string &inlineAsm = _module->getModuleInlineAsm();
- if (inlineAsm.empty())
- return false;
-
- OwningPtr<RecordStreamer> Streamer(new RecordStreamer(_context));
- MemoryBuffer *Buffer = MemoryBuffer::getMemBuffer(inlineAsm);
- SourceMgr SrcMgr;
- SrcMgr.AddNewSourceBuffer(Buffer, SMLoc());
- OwningPtr<MCAsmParser> Parser(createMCAsmParser(SrcMgr,
- _context, *Streamer,
- *_target->getMCAsmInfo()));
- const Target &T = _target->getTarget();
- OwningPtr<MCInstrInfo> MCII(T.createMCInstrInfo());
- OwningPtr<MCSubtargetInfo>
- STI(T.createMCSubtargetInfo(_target->getTargetTriple(),
- _target->getTargetCPU(),
- _target->getTargetFeatureString()));
- OwningPtr<MCTargetAsmParser> TAP(T.createMCAsmParser(*STI, *Parser.get(), *MCII));
- if (!TAP) {
- errMsg = "target " + std::string(T.getName()) +
- " does not define AsmParser.";
- return true;
- }
-
- Parser->setTargetParser(*TAP);
- if (Parser->Run(false))
- return true;
-
- for (RecordStreamer::const_iterator i = Streamer->begin(),
- e = Streamer->end(); i != e; ++i) {
- StringRef Key = i->first();
- RecordStreamer::State Value = i->second;
- if (Value == RecordStreamer::DefinedGlobal)
- addAsmGlobalSymbol(Key.data(), LTO_SYMBOL_SCOPE_DEFAULT);
- else if (Value == RecordStreamer::Defined)
- addAsmGlobalSymbol(Key.data(), LTO_SYMBOL_SCOPE_INTERNAL);
- else if (Value == RecordStreamer::Global ||
- Value == RecordStreamer::Used)
- addAsmGlobalSymbolUndef(Key.data());
- }