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;
-public:
- TargetLoweringObjectFileELF() {}
- ~TargetLoweringObjectFileELF() {}
-
- virtual void Initialize(MCContext &Ctx, const TargetMachine &TM);
-
- const MCSection *getDataRelSection() const { return DataRelSection; }
-
- /// getSectionForConstant - Given a constant with the SectionKind, return a
- /// section that it should be placed in.
- virtual const MCSection *getSectionForConstant(SectionKind Kind) const;
-
-
- virtual const MCSection *
- getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
- Mangler *Mang, const TargetMachine &TM) const;
+ bool UseInitArray;
+ mutable unsigned NextUniqueID = 0;
- virtual const MCSection *
- SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
- Mangler *Mang, const TargetMachine &TM) const;
-
- /// 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;
+public:
+ TargetLoweringObjectFileELF() : UseInitArray(false) {}
+
+ ~TargetLoweringObjectFileELF() override {}
+
+ void emitPersonalityValue(MCStreamer &Streamer, const DataLayout &TM,
+ const MCSymbol *Sym) const override;
+
+ /// 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;
+
+ 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;
+
+ MCSection *getSectionForJumpTable(const Function &F, Mangler &Mang,
+ const TargetMachine &TM) const override;
+
+ bool shouldPutJumpTableInFunctionSection(bool UsesLabelDifference,
+ const Function &F) const override;
+
+ /// 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;
+
+ // The symbol that gets passed to .cfi_personality.
+ MCSymbol *getCFIPersonalitySymbol(const GlobalValue *GV, Mangler &Mang,
+ const TargetMachine &TM,
+ MachineModuleInfo *MMI) const override;
+
+ 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 infomation.
- /// 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 *ConstDataCoalSection;
- 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 *
- 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;
-
- 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<Module::ModuleFlagEntry> 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;
+
+ void getNameWithPrefix(SmallVectorImpl<char> &OutName, const GlobalValue *GV,
+ Mangler &Mang, const TargetMachine &TM) 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;
+
+ void getNameWithPrefix(SmallVectorImpl<char> &OutName, const GlobalValue *GV,
+ Mangler &Mang, const TargetMachine &TM) const override;
- virtual void Initialize(MCContext &Ctx, const TargetMachine &TM);
+ 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<Module::ModuleFlagEntry> 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
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