X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FCodeGen%2FTargetLoweringObjectFileImpl.h;h=9a3abc4dc1fc7f22e938a54d1e381be5ec13773b;hb=50072bfa3eea84f503699fa0caa166f1be5b1719;hp=411e4ccd081df99f8870fb3a3a2b960cd03a5596;hpb=7afec9cc0ff1654619d30b6f30e2a4d13369c8bf;p=oota-llvm.git diff --git a/include/llvm/CodeGen/TargetLoweringObjectFileImpl.h b/include/llvm/CodeGen/TargetLoweringObjectFileImpl.h index 411e4ccd081..9a3abc4dc1f 100644 --- a/include/llvm/CodeGen/TargetLoweringObjectFileImpl.h +++ b/include/llvm/CodeGen/TargetLoweringObjectFileImpl.h @@ -33,186 +33,132 @@ namespace llvm { class TargetLoweringObjectFileELF : public TargetLoweringObjectFile { -protected: - /// TLSDataSection - Section directive for Thread Local data. - /// - const MCSection *TLSDataSection; // Defaults to ".tdata". - - /// TLSBSSSection - Section directive for Thread Local uninitialized data. - /// Null if this target doesn't support a BSS section. - /// - const MCSection *TLSBSSSection; // Defaults to ".tbss". - - const MCSection *DataRelSection; - const MCSection *DataRelLocalSection; - const MCSection *DataRelROSection; - const MCSection *DataRelROLocalSection; - - const MCSection *MergeableConst4Section; - const MCSection *MergeableConst8Section; - const MCSection *MergeableConst16Section; + bool UseInitArray; + mutable unsigned NextUniqueID = 0; + public: - TargetLoweringObjectFileELF() {} - ~TargetLoweringObjectFileELF() {} + TargetLoweringObjectFileELF() : UseInitArray(false) {} - virtual void Initialize(MCContext &Ctx, const TargetMachine &TM); + ~TargetLoweringObjectFileELF() override {} - virtual const MCSection *getEHFrameSection() const; + void emitPersonalityValue(MCStreamer &Streamer, const DataLayout &TM, + const MCSymbol *Sym) const override; - virtual void emitPersonalityValue(MCStreamer &Streamer, - const TargetMachine &TM, - const MCSymbol *Sym) const; + /// Given a constant with the SectionKind, return a section that it should be + /// placed in. + MCSection *getSectionForConstant(const DataLayout &DL, SectionKind Kind, + const Constant *C) const override; - const MCSection *getDataRelSection() const { return DataRelSection; } + MCSection *getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind, + Mangler &Mang, + const TargetMachine &TM) const override; - /// getSectionForConstant - Given a constant with the SectionKind, return a - /// section that it should be placed in. - virtual const MCSection *getSectionForConstant(SectionKind Kind) const; + MCSection *SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind, + Mangler &Mang, + const TargetMachine &TM) const override; + MCSection *getSectionForJumpTable(const Function &F, Mangler &Mang, + const TargetMachine &TM) const override; - virtual const MCSection * - getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind, - Mangler *Mang, const TargetMachine &TM) const; + bool shouldPutJumpTableInFunctionSection(bool UsesLabelDifference, + const Function &F) const override; - virtual const MCSection * - SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind, - Mangler *Mang, const TargetMachine &TM) const; + /// Return an MCExpr to use for a reference to the specified type info global + /// variable from exception handling information. + const MCExpr * + getTTypeGlobalReference(const GlobalValue *GV, unsigned Encoding, + Mangler &Mang, const TargetMachine &TM, + MachineModuleInfo *MMI, + MCStreamer &Streamer) const override; - /// getExprForDwarfGlobalReference - Return an MCExpr to use for a reference - /// to the specified global variable from exception handling information. - /// - virtual const MCExpr * - getExprForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang, - MachineModuleInfo *MMI, unsigned Encoding, - MCStreamer &Streamer) const; + // The symbol that gets passed to .cfi_personality. + MCSymbol *getCFIPersonalitySymbol(const GlobalValue *GV, Mangler &Mang, + const TargetMachine &TM, + MachineModuleInfo *MMI) const override; - // getCFIPersonalitySymbol - The symbol that gets passed to .cfi_personality. - virtual MCSymbol * - getCFIPersonalitySymbol(const GlobalValue *GV, unsigned Encoding, - Mangler *Mang, MachineModuleInfo *MMI) const; + void InitializeELF(bool UseInitArray_); + MCSection *getStaticCtorSection(unsigned Priority, + const MCSymbol *KeySym) const override; + MCSection *getStaticDtorSection(unsigned Priority, + const MCSymbol *KeySym) const override; }; class TargetLoweringObjectFileMachO : public TargetLoweringObjectFile { - /// TLSDataSection - Section for thread local data. - /// - const MCSection *TLSDataSection; // Defaults to ".tdata". - - /// TLSBSSSection - Section for thread local uninitialized data. - /// - const MCSection *TLSBSSSection; // Defaults to ".tbss". - - /// TLSTLVSection - Section for thread local structure information. - /// Contains the source code name of the variable, visibility and a pointer - /// to the initial value (.tdata or .tbss). - const MCSection *TLSTLVSection; // Defaults to ".tlv". - - /// TLSThreadInitSection - Section for thread local data initialization - /// functions. - const MCSection *TLSThreadInitSection; // Defaults to ".thread_init_func". - - const MCSection *CStringSection; - const MCSection *UStringSection; - const MCSection *TextCoalSection; - const MCSection *ConstTextCoalSection; - const MCSection *ConstDataSection; - const MCSection *DataCoalSection; - const MCSection *DataCommonSection; - const MCSection *DataBSSSection; - const MCSection *FourByteConstantSection; - const MCSection *EightByteConstantSection; - const MCSection *SixteenByteConstantSection; - - const MCSection *LazySymbolPointerSection; - const MCSection *NonLazySymbolPointerSection; public: - TargetLoweringObjectFileMachO() {} - ~TargetLoweringObjectFileMachO() {} - - virtual void Initialize(MCContext &Ctx, const TargetMachine &TM); - - virtual const MCSection *getEHFrameSection() const; - - virtual const MCSection * - SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind, - Mangler *Mang, const TargetMachine &TM) const; - - virtual const MCSection * - getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind, - Mangler *Mang, const TargetMachine &TM) const; - - virtual const MCSection *getSectionForConstant(SectionKind Kind) const; - - /// shouldEmitUsedDirectiveFor - This hook allows targets to selectively - /// decide not to emit the UsedDirective for some symbols in llvm.used. - /// FIXME: REMOVE this (rdar://7071300) - virtual bool shouldEmitUsedDirectiveFor(const GlobalValue *GV, - Mangler *) const; - - /// getTextCoalSection - Return the "__TEXT,__textcoal_nt" section we put weak - /// text symbols into. - const MCSection *getTextCoalSection() const { - return TextCoalSection; - } - - /// getConstTextCoalSection - Return the "__TEXT,__const_coal" section - /// we put weak read-only symbols into. - const MCSection *getConstTextCoalSection() const { - return ConstTextCoalSection; - } - - /// getLazySymbolPointerSection - Return the section corresponding to - /// the .lazy_symbol_pointer directive. - const MCSection *getLazySymbolPointerSection() const { - return LazySymbolPointerSection; - } - - /// getNonLazySymbolPointerSection - Return the section corresponding to - /// the .non_lazy_symbol_pointer directive. - const MCSection *getNonLazySymbolPointerSection() const { - return NonLazySymbolPointerSection; - } - - /// getExprForDwarfGlobalReference - The mach-o version of this method - /// defaults to returning a stub reference. - virtual const MCExpr * - getExprForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang, - MachineModuleInfo *MMI, unsigned Encoding, - MCStreamer &Streamer) const; - - // getCFIPersonalitySymbol - The symbol that gets passed to .cfi_personality. - virtual MCSymbol * - getCFIPersonalitySymbol(const GlobalValue *GV, unsigned Encoding, - Mangler *Mang, MachineModuleInfo *MMI) const; - - virtual unsigned getPersonalityEncoding() const; - virtual unsigned getLSDAEncoding() const; - virtual unsigned getFDEEncoding() const; - virtual unsigned getTTypeEncoding() const; + ~TargetLoweringObjectFileMachO() override {} + TargetLoweringObjectFileMachO(); + + /// Emit the module flags that specify the garbage collection information. + void emitModuleFlags(MCStreamer &Streamer, + ArrayRef ModuleFlags, + Mangler &Mang, const TargetMachine &TM) const override; + + MCSection *SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind, + Mangler &Mang, + const TargetMachine &TM) const override; + + MCSection *getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind, + Mangler &Mang, + const TargetMachine &TM) const override; + + MCSection *getSectionForConstant(const DataLayout &DL, SectionKind Kind, + const Constant *C) const override; + + /// The mach-o version of this method defaults to returning a stub reference. + const MCExpr * + getTTypeGlobalReference(const GlobalValue *GV, unsigned Encoding, + Mangler &Mang, const TargetMachine &TM, + MachineModuleInfo *MMI, + MCStreamer &Streamer) const override; + + // The symbol that gets passed to .cfi_personality. + MCSymbol *getCFIPersonalitySymbol(const GlobalValue *GV, Mangler &Mang, + const TargetMachine &TM, + MachineModuleInfo *MMI) const override; + + /// Get MachO PC relative GOT entry relocation + const MCExpr *getIndirectSymViaGOTPCRel(const MCSymbol *Sym, + const MCValue &MV, int64_t Offset, + MachineModuleInfo *MMI, + MCStreamer &Streamer) const override; }; class TargetLoweringObjectFileCOFF : public TargetLoweringObjectFile { - const MCSection *DrectveSection; public: - TargetLoweringObjectFileCOFF() {} - ~TargetLoweringObjectFileCOFF() {} + ~TargetLoweringObjectFileCOFF() override {} + + MCSection *getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind, + Mangler &Mang, + const TargetMachine &TM) const override; + + MCSection *SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind, + Mangler &Mang, + const TargetMachine &TM) const override; - virtual void Initialize(MCContext &Ctx, const TargetMachine &TM); + void getNameWithPrefix(SmallVectorImpl &OutName, const GlobalValue *GV, + bool CannotUsePrivateLabel, Mangler &Mang, + const TargetMachine &TM) const override; - virtual const MCSection *getEHFrameSection() const; + MCSection *getSectionForJumpTable(const Function &F, Mangler &Mang, + const TargetMachine &TM) const override; - virtual const MCSection *getDrectveSection() const { return DrectveSection; } + /// Emit Obj-C garbage collection and linker options. Only linker option + /// emission is implemented for COFF. + void emitModuleFlags(MCStreamer &Streamer, + ArrayRef ModuleFlags, + Mangler &Mang, const TargetMachine &TM) const override; - virtual const MCSection * - getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind, - Mangler *Mang, const TargetMachine &TM) const; + MCSection *getStaticCtorSection(unsigned Priority, + const MCSymbol *KeySym) const override; + MCSection *getStaticDtorSection(unsigned Priority, + const MCSymbol *KeySym) const override; - virtual const MCSection * - SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind, - Mangler *Mang, const TargetMachine &TM) const; + void emitLinkerFlagsForGlobal(raw_ostream &OS, const GlobalValue *GV, + const Mangler &Mang) const override; }; } // end namespace llvm