#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Triple.h"
#include "llvm/BinaryFormat/COFF.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/BinaryFormat/MachO.h"
#include "llvm/BinaryFormat/Wasm.h"
#include "llvm/CodeGen/BasicBlockSectionUtils.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineModuleInfoImpls.h"
#include "llvm/IR/Comdat.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/DiagnosticPrinter.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalAlias.h"
#include "llvm/IR/GlobalObject.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/Mangler.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/PseudoProbe.h"
#include "llvm/IR/Type.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSectionGOFF.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCSectionWasm.h"
#include "llvm/MC/MCSectionXCOFF.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCSymbolELF.h"
#include "llvm/MC/MCValue.h"
#include "llvm/MC/SectionKind.h"
#include "llvm/ProfileData/InstrProf.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include <cassert>
#include <string>

Functions
static void	GetObjCImageInfo (Module &M, unsigned &Version, unsigned &Flags, StringRef &Section)

static SectionKind	getELFKindForNamedSection (StringRef Name, SectionKind K)

static bool	hasPrefix (StringRef SectionName, StringRef Prefix)

static unsigned	getELFSectionType (StringRef Name, SectionKind K)

static unsigned	getELFSectionFlags (SectionKind K)

static const Comdat *	getELFComdat (const GlobalValue *GV)

static const MCSymbolELF *	getLinkedToSymbol (const GlobalObject *GO, const TargetMachine &TM)

static unsigned	getEntrySizeForKind (SectionKind Kind)

static StringRef	getSectionPrefixForGlobal (SectionKind Kind)
	Return the section prefix name used by options FunctionsSections and DataSections. More...

static SmallString< 128 >	getELFSectionNameForGlobal (const GlobalObject *GO, SectionKind Kind, Mangler &Mang, const TargetMachine &TM, unsigned EntrySize, bool UniqueSectionName)

static unsigned	calcUniqueIDUpdateFlagsAndSize (const GlobalObject *GO, StringRef SectionName, SectionKind Kind, const TargetMachine &TM, MCContext &Ctx, Mangler &Mang, unsigned &Flags, unsigned &EntrySize, unsigned &NextUniqueID, const bool Retain, const bool ForceUnique)
	Calculate an appropriate unique ID for a section, and update Flags, EntrySize and NextUniqueID where appropriate. More...

static MCSection *	selectExplicitSectionGlobal (const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM, MCContext &Ctx, Mangler &Mang, unsigned &NextUniqueID, bool Retain, bool ForceUnique)

static MCSectionELF *	selectELFSectionForGlobal (MCContext &Ctx, const GlobalObject GO, SectionKind Kind, Mangler &Mang, const TargetMachine &TM, bool EmitUniqueSection, unsigned Flags, unsigned NextUniqueID, const MCSymbolELF *AssociatedSymbol)

static MCSection *	selectELFSectionForGlobal (MCContext &Ctx, const GlobalObject GO, SectionKind Kind, Mangler &Mang, const TargetMachine &TM, bool Retain, bool EmitUniqueSection, unsigned Flags, unsigned NextUniqueID)

static MCSectionELF *	getStaticStructorSection (MCContext &Ctx, bool UseInitArray, bool IsCtor, unsigned Priority, const MCSymbol *KeySym)

static void	checkMachOComdat (const GlobalValue *GV)

static bool	canUsePrivateLabel (const MCAsmInfo &AsmInfo, const MCSection &Section)

static unsigned	getCOFFSectionFlags (SectionKind K, const TargetMachine &TM)

static const GlobalValue *	getComdatGVForCOFF (const GlobalValue *GV)

static int	getSelectionForCOFF (const GlobalValue *GV)

static StringRef	getCOFFSectionNameForUniqueGlobal (SectionKind Kind)

static MCSectionCOFF *	getCOFFStaticStructorSection (MCContext &Ctx, const Triple &T, bool IsCtor, unsigned Priority, const MCSymbol KeySym, MCSectionCOFF Default)

static std::string	APIntToHexString (const APInt &AI)

static std::string	scalarConstantToHexString (const Constant *C)

static const Comdat *	getWasmComdat (const GlobalValue *GV)

static unsigned	getWasmSectionFlags (SectionKind K)

static MCSectionWasm *	selectWasmSectionForGlobal (MCContext &Ctx, const GlobalObject GO, SectionKind Kind, Mangler &Mang, const TargetMachine &TM, bool EmitUniqueSection, unsigned NextUniqueID)

Function Documentation

◆ APIntToHexString()

static std::string APIntToHexString ( const APInt & AI )

static

Definition at line 1960 of file TargetLoweringObjectFileImpl.cpp.

References assert(), llvm::APInt::getBitWidth(), llvm::dwarf::toString(), and llvm::transform().

Referenced by scalarConstantToHexString().

◆ calcUniqueIDUpdateFlagsAndSize()

static unsigned calcUniqueIDUpdateFlagsAndSize	(	const GlobalObject *	GO,
		StringRef	SectionName,
		SectionKind	Kind,
		const TargetMachine &	TM,
		MCContext &	Ctx,
		Mangler &	Mang,
		unsigned &	Flags,
		unsigned &	EntrySize,
		unsigned &	NextUniqueID,
		const bool	Retain,
		const bool	ForceUnique
	)

static

Calculate an appropriate unique ID for a section, and update Flags, EntrySize and NextUniqueID where appropriate.

Definition at line 670 of file TargetLoweringObjectFileImpl.cpp.

References llvm::MCAsmInfo::binutilsIsAtLeast(), llvm::MCContext::GenericSectionID, llvm::MCContext::getAsmInfo(), getELFSectionNameForGlobal(), llvm::MCContext::getELFUniqueIDForEntsize(), llvm::GlobalObject::getMetadata(), llvm::MCContext::isELFGenericMergeableSection(), llvm::MCContext::isELFImplicitMergeableSectionNamePrefix(), llvm::ELF::SHF_GNU_RETAIN, llvm::ELF::SHF_LINK_ORDER, llvm::ELF::SHF_MERGE, llvm::ELF::SHF_SUNW_NODISCARD, TM, and llvm::MCAsmInfo::useIntegratedAssembler().

Referenced by selectExplicitSectionGlobal().

◆ canUsePrivateLabel()

static bool canUsePrivateLabel	(	const MCAsmInfo &	AsmInfo,
		const MCSection &	Section
	)

static

Definition at line 1505 of file TargetLoweringObjectFileImpl.cpp.

References llvm::MCAsmInfo::isSectionAtomizableBySymbols().

Referenced by llvm::TargetLoweringObjectFileMachO::getNameWithPrefix().

◆ checkMachOComdat()

static void checkMachOComdat ( const GlobalValue * GV )

static

Definition at line 1237 of file TargetLoweringObjectFileImpl.cpp.

References llvm::GlobalValue::getComdat(), and llvm::report_fatal_error().

Referenced by llvm::TargetLoweringObjectFileMachO::getExplicitSectionGlobal(), and llvm::TargetLoweringObjectFileMachO::SelectSectionForGlobal().

◆ getCOFFSectionFlags()

static unsigned getCOFFSectionFlags	(	SectionKind	K,
		const TargetMachine &	TM
	)

static

Definition at line 1535 of file TargetLoweringObjectFileImpl.cpp.

Referenced by llvm::TargetLoweringObjectFileCOFF::getExplicitSectionGlobal(), llvm::TargetLoweringObjectFileCOFF::getSectionForJumpTable(), and llvm::TargetLoweringObjectFileCOFF::SelectSectionForGlobal().

◆ getCOFFSectionNameForUniqueGlobal()

static StringRef getCOFFSectionNameForUniqueGlobal ( SectionKind Kind )

static

Definition at line 1643 of file TargetLoweringObjectFileImpl.cpp.

Referenced by llvm::TargetLoweringObjectFileCOFF::getSectionForJumpTable(), and llvm::TargetLoweringObjectFileCOFF::SelectSectionForGlobal().

◆ getCOFFStaticStructorSection()

static MCSectionCOFF* getCOFFStaticStructorSection	(	MCContext &	Ctx,
		const Triple &	T,
		bool	IsCtor,
		unsigned	Priority,
		const MCSymbol *	KeySym,
		MCSectionCOFF *	Default
	)

static

Definition at line 1877 of file TargetLoweringObjectFileImpl.cpp.

References llvm::format(), llvm::MCContext::getAssociativeCOFFSection(), llvm::MCContext::getCOFFSection(), llvm::SectionKind::getData(), llvm::SectionKind::getReadOnly(), llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA, llvm::COFF::IMAGE_SCN_MEM_READ, and llvm::COFF::IMAGE_SCN_MEM_WRITE.

Referenced by llvm::TargetLoweringObjectFileCOFF::getStaticCtorSection(), and llvm::TargetLoweringObjectFileCOFF::getStaticDtorSection().

◆ getComdatGVForCOFF()

static const GlobalValue* getComdatGVForCOFF ( const GlobalValue * GV )

static

Definition at line 1574 of file TargetLoweringObjectFileImpl.cpp.

References assert(), llvm::GlobalValue::getComdat(), llvm::Module::getNamedValue(), llvm::GlobalValue::getParent(), and llvm::report_fatal_error().

Referenced by llvm::TargetLoweringObjectFileCOFF::getExplicitSectionGlobal(), getSelectionForCOFF(), and llvm::TargetLoweringObjectFileCOFF::SelectSectionForGlobal().

◆ getELFComdat()

static const Comdat* getELFComdat ( const GlobalValue * GV )

static

Definition at line 540 of file TargetLoweringObjectFileImpl.cpp.

References llvm::Comdat::Any, llvm::GlobalValue::getComdat(), llvm::Comdat::NoDeduplicate, and llvm::report_fatal_error().

Referenced by llvm::TargetLoweringObjectFileELF::getSectionForLSDA(), selectELFSectionForGlobal(), and selectExplicitSectionGlobal().

◆ getELFKindForNamedSection()

static SectionKind getELFKindForNamedSection	(	StringRef	Name,
		SectionKind	K
	)

static

Definition at line 437 of file TargetLoweringObjectFileImpl.cpp.

References llvm::Triple::ELF, llvm::SectionKind::getBSS(), llvm::SectionKind::getExclude(), llvm::getInstrProfSectionName(), llvm::SectionKind::getMetadata(), llvm::SectionKind::getThreadBSS(), and llvm::SectionKind::getThreadData().

Referenced by selectExplicitSectionGlobal().

◆ getELFSectionFlags()

static unsigned getELFSectionFlags ( SectionKind K )

static

◆ getELFSectionNameForGlobal()

static SmallString<128> getELFSectionNameForGlobal	(	const GlobalObject *	GO,
		SectionKind	Kind,
		Mangler &	Mang,
		const TargetMachine &	TM,
		unsigned	EntrySize,
		bool	UniqueSectionName
	)

static

Definition at line 617 of file TargetLoweringObjectFileImpl.cpp.

References F, llvm::Module::getDataLayout(), llvm::GlobalValue::getParent(), llvm::DataLayout::getPreferredAlign(), getSectionPrefixForGlobal(), llvm::cl::Prefix, and TM.

Referenced by calcUniqueIDUpdateFlagsAndSize(), and selectELFSectionForGlobal().

◆ getELFSectionType()

static unsigned getELFSectionType	(	StringRef	Name,
		SectionKind	K
	)

static

Definition at line 488 of file TargetLoweringObjectFileImpl.cpp.

References hasPrefix(), llvm::SectionKind::isBSS(), llvm::SectionKind::isThreadBSS(), llvm::ELF::SHT_FINI_ARRAY, llvm::ELF::SHT_INIT_ARRAY, llvm::ELF::SHT_NOBITS, llvm::ELF::SHT_NOTE, llvm::ELF::SHT_PREINIT_ARRAY, and llvm::ELF::SHT_PROGBITS.

Referenced by selectELFSectionForGlobal(), and selectExplicitSectionGlobal().

◆ getEntrySizeForKind()

static unsigned getEntrySizeForKind ( SectionKind Kind )

static

Definition at line 572 of file TargetLoweringObjectFileImpl.cpp.

References assert().

Referenced by selectELFSectionForGlobal(), selectExplicitSectionGlobal(), and llvm::TargetLoweringObjectFileXCOFF::SelectSectionForGlobal().

◆ getLinkedToSymbol()

static const MCSymbolELF* getLinkedToSymbol	(	const GlobalObject *	GO,
		const TargetMachine &	TM
	)

static

Definition at line 554 of file TargetLoweringObjectFileImpl.cpp.

References llvm::GlobalObject::getMetadata(), llvm::MDNode::getOperand(), llvm::report_fatal_error(), and TM.

Referenced by selectELFSectionForGlobal(), and selectExplicitSectionGlobal().

◆ GetObjCImageInfo()

static void GetObjCImageInfo	(	Module &	M,
		unsigned &	Version,
		unsigned &	Flags,
		StringRef &	Section
	)

static

Definition at line 73 of file TargetLoweringObjectFileImpl.cpp.

References M, llvm::Module::Require, and llvm::IndexedInstrProf::Version.

Referenced by llvm::TargetLoweringObjectFileELF::emitModuleMetadata(), llvm::TargetLoweringObjectFileMachO::emitModuleMetadata(), and llvm::TargetLoweringObjectFileCOFF::emitModuleMetadata().

◆ getSectionPrefixForGlobal()

static StringRef getSectionPrefixForGlobal ( SectionKind Kind )

static

Return the section prefix name used by options FunctionsSections and DataSections.

Definition at line 598 of file TargetLoweringObjectFileImpl.cpp.

References llvm_unreachable.

Referenced by getELFSectionNameForGlobal(), and selectWasmSectionForGlobal().

◆ getSelectionForCOFF()

static int getSelectionForCOFF ( const GlobalValue * GV )

static

Definition at line 1591 of file TargetLoweringObjectFileImpl.cpp.

References llvm::Comdat::Any, llvm::Comdat::ExactMatch, llvm::GlobalValue::getAliaseeObject(), llvm::GlobalValue::getComdat(), getComdatGVForCOFF(), llvm::COFF::IMAGE_COMDAT_SELECT_ANY, llvm::COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE, llvm::COFF::IMAGE_COMDAT_SELECT_EXACT_MATCH, llvm::COFF::IMAGE_COMDAT_SELECT_LARGEST, llvm::COFF::IMAGE_COMDAT_SELECT_NODUPLICATES, llvm::COFF::IMAGE_COMDAT_SELECT_SAME_SIZE, llvm::Comdat::Largest, llvm::Comdat::NoDeduplicate, and llvm::Comdat::SameSize.

Referenced by llvm::TargetLoweringObjectFileCOFF::getExplicitSectionGlobal(), and llvm::TargetLoweringObjectFileCOFF::SelectSectionForGlobal().

◆ getStaticStructorSection()

static MCSectionELF* getStaticStructorSection	(	MCContext &	Ctx,
		bool	UseInitArray,
		bool	IsCtor,
		unsigned	Priority,
		const MCSymbol *	KeySym
	)

static

Definition at line 1041 of file TargetLoweringObjectFileImpl.cpp.

References llvm::format(), llvm::MCContext::getELFSection(), llvm::MCSymbol::getName(), llvm::ELF::SHF_ALLOC, llvm::ELF::SHF_GROUP, llvm::ELF::SHF_WRITE, llvm::ELF::SHT_FINI_ARRAY, llvm::ELF::SHT_INIT_ARRAY, and llvm::ELF::SHT_PROGBITS.

Referenced by llvm::TargetLoweringObjectFileELF::getStaticCtorSection(), and llvm::TargetLoweringObjectFileELF::getStaticDtorSection().

◆ getWasmComdat()

static const Comdat* getWasmComdat ( const GlobalValue * GV )

static

Definition at line 2042 of file TargetLoweringObjectFileImpl.cpp.

References llvm::Comdat::Any, llvm::GlobalValue::getComdat(), and llvm::report_fatal_error().

Referenced by llvm::TargetLoweringObjectFileWasm::getExplicitSectionGlobal(), and selectWasmSectionForGlobal().

◆ getWasmSectionFlags()

static unsigned getWasmSectionFlags ( SectionKind K )

static

Definition at line 2055 of file TargetLoweringObjectFileImpl.cpp.

References llvm::SectionKind::isMergeableCString(), llvm::SectionKind::isThreadLocal(), llvm::wasm::WASM_SEG_FLAG_STRINGS, and llvm::wasm::WASM_SEG_FLAG_TLS.

Referenced by llvm::TargetLoweringObjectFileWasm::getExplicitSectionGlobal(), and selectWasmSectionForGlobal().

◆ hasPrefix()

static bool hasPrefix	(	StringRef	SectionName,
		StringRef	Prefix
	)

static

Definition at line 483 of file TargetLoweringObjectFileImpl.cpp.

References llvm::cl::Prefix.

Referenced by getELFSectionType().

◆ scalarConstantToHexString()

static std::string scalarConstantToHexString ( const Constant * C )

static

Definition at line 1971 of file TargetLoweringObjectFileImpl.cpp.

References APIntToHexString(), E, llvm::Type::getArrayNumElements(), llvm::Type::getPrimitiveSizeInBits(), llvm::APInt::getZero(), and I.

Referenced by llvm::TargetLoweringObjectFileCOFF::getSectionForConstant().

◆ selectELFSectionForGlobal() [1/2]

static MCSectionELF* selectELFSectionForGlobal	(	MCContext &	Ctx,
		const GlobalObject *	GO,
		SectionKind	Kind,
		Mangler &	Mang,
		const TargetMachine &	TM,
		bool	EmitUniqueSection,
		unsigned	Flags,
		unsigned *	NextUniqueID,
		const MCSymbolELF *	AssociatedSymbol
	)

static

Definition at line 824 of file TargetLoweringObjectFileImpl.cpp.

References llvm::Comdat::Any, llvm::MCContext::GenericSectionID, getELFComdat(), llvm::MCContext::getELFSection(), getELFSectionNameForGlobal(), getELFSectionType(), getEntrySizeForKind(), llvm::ELF::SHF_GROUP, and TM.

Referenced by llvm::TargetLoweringObjectFileELF::getSectionForJumpTable(), llvm::TargetLoweringObjectFileELF::getUniqueSectionForFunction(), selectELFSectionForGlobal(), and llvm::TargetLoweringObjectFileELF::SelectSectionForGlobal().

◆ selectELFSectionForGlobal() [2/2]

static MCSection* selectELFSectionForGlobal	(	MCContext &	Ctx,
		const GlobalObject *	GO,
		SectionKind	Kind,
		Mangler &	Mang,
		const TargetMachine &	TM,
		bool	Retain,
		bool	EmitUniqueSection,
		unsigned	Flags,
		unsigned *	NextUniqueID
	)

static

Definition at line 861 of file TargetLoweringObjectFileImpl.cpp.

References assert(), llvm::MCAsmInfo::binutilsIsAtLeast(), llvm::MCContext::getAsmInfo(), getLinkedToSymbol(), selectELFSectionForGlobal(), llvm::ELF::SHF_GNU_RETAIN, llvm::ELF::SHF_LINK_ORDER, llvm::ELF::SHF_SUNW_NODISCARD, TM, and llvm::MCAsmInfo::useIntegratedAssembler().

◆ selectExplicitSectionGlobal()

static MCSection* selectExplicitSectionGlobal	(	const GlobalObject *	GO,
		SectionKind	Kind,
		const TargetMachine &	TM,
		MCContext &	Ctx,
		Mangler &	Mang,
		unsigned &	NextUniqueID,
		bool	Retain,
		bool	ForceUnique
	)

static

Definition at line 744 of file TargetLoweringObjectFileImpl.cpp.

References llvm::Comdat::Any, assert(), Attrs, llvm::MCAsmInfo::binutilsIsAtLeast(), calcUniqueIDUpdateFlagsAndSize(), llvm::LLVMContext::diagnose(), F, llvm::MCContext::getAsmInfo(), llvm::GlobalVariable::getAttributes(), llvm::Value::getContext(), getELFComdat(), getELFKindForNamedSection(), llvm::MCContext::getELFSection(), getELFSectionFlags(), getELFSectionType(), getEntrySizeForKind(), getLinkedToSymbol(), llvm::Value::getName(), llvm::GlobalValue::getParent(), llvm::GlobalObject::getSection(), llvm::Module::getSourceFileName(), llvm::GlobalVariable::hasImplicitSection(), llvm::ELF::SHF_GROUP, llvm::ELF::SHF_MERGE, TM, and llvm::MCAsmInfo::useIntegratedAssembler().

Referenced by llvm::TargetLoweringObjectFileELF::getExplicitSectionGlobal(), and llvm::TargetLoweringObjectFileELF::getUniqueSectionForFunction().

◆ selectWasmSectionForGlobal()

static MCSectionWasm* selectWasmSectionForGlobal	(	MCContext &	Ctx,
		const GlobalObject *	GO,
		SectionKind	Kind,
		Mangler &	Mang,
		const TargetMachine &	TM,
		bool	EmitUniqueSection,
		unsigned *	NextUniqueID
	)

static

Definition at line 2099 of file TargetLoweringObjectFileImpl.cpp.

References F, llvm::MCContext::GenericSectionID, getSectionPrefixForGlobal(), getWasmComdat(), llvm::MCContext::getWasmSection(), getWasmSectionFlags(), and TM.

Referenced by llvm::TargetLoweringObjectFileWasm::SelectSectionForGlobal().