#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"

Inheritance diagram for llvm::TargetLoweringObjectFileELF:

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Collaboration diagram for llvm::TargetLoweringObjectFileELF:

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Public Member Functions
	TargetLoweringObjectFileELF ()=default

	~TargetLoweringObjectFileELF () override=default

void	Initialize (MCContext &Ctx, const TargetMachine &TM) override
	This method must be called before any actual lowering is done. More...

void	emitModuleMetadata (MCStreamer &Streamer, Module &M) const override
	Emit Obj-C garbage collection and linker options. More...

void	emitPersonalityValue (MCStreamer &Streamer, const DataLayout &DL, const MCSymbol *Sym) const override

MCSection *	getSectionForConstant (const DataLayout &DL, SectionKind Kind, const Constant *C, unsigned &Align) const override
	Given a constant with the SectionKind, return a section that it should be placed in. More...

MCSection *	getExplicitSectionGlobal (const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override
	Targets should implement this method to assign a section to globals with an explicit section specfied. More...

MCSection *	SelectSectionForGlobal (const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override

MCSection *	getSectionForJumpTable (const Function &F, const TargetMachine &TM) const override

bool	shouldPutJumpTableInFunctionSection (bool UsesLabelDifference, const Function &F) const override

const MCExpr *	getTTypeGlobalReference (const GlobalValue GV, unsigned Encoding, const TargetMachine &TM, MachineModuleInfo MMI, MCStreamer &Streamer) const override
	Return an MCExpr to use for a reference to the specified type info global variable from exception handling information. More...

MCSymbol *	getCFIPersonalitySymbol (const GlobalValue GV, 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

const MCExpr *	lowerRelativeReference (const GlobalValue LHS, const GlobalValue RHS, const TargetMachine &TM) const override

MCSection *	getSectionForCommandLines () const override
	If supported, return the section to use for the llvm.commandline metadata. More...

Public Member Functions inherited from llvm::TargetLoweringObjectFile
	TargetLoweringObjectFile ()=default

	TargetLoweringObjectFile (const TargetLoweringObjectFile &)=delete

TargetLoweringObjectFile &	operator= (const TargetLoweringObjectFile &)=delete

virtual	~TargetLoweringObjectFile ()

MCContext &	getContext () const

Mangler &	getMangler () const

MCSection *	SectionForGlobal (const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const
	This method computes the appropriate section to emit the specified global variable or function definition. More...

MCSection *	SectionForGlobal (const GlobalObject *GO, const TargetMachine &TM) const
	This method computes the appropriate section to emit the specified global variable or function definition. More...

virtual void	getNameWithPrefix (SmallVectorImpl< char > &OutName, const GlobalValue *GV, const TargetMachine &TM) const

MCSymbol *	getSymbolWithGlobalValueBase (const GlobalValue *GV, StringRef Suffix, const TargetMachine &TM) const
	Return the MCSymbol for a private symbol with global value name as its base, with the specified suffix. More...

unsigned	getPersonalityEncoding () const

unsigned	getLSDAEncoding () const

unsigned	getTTypeEncoding () const

const MCExpr *	getTTypeReference (const MCSymbolRefExpr *Sym, unsigned Encoding, MCStreamer &Streamer) const

virtual const MCExpr *	getDebugThreadLocalSymbol (const MCSymbol *Sym) const
	Create a symbol reference to describe the given TLS variable when emitting the address in debug info. More...

bool	supportIndirectSymViaGOTPCRel () const
	Target supports replacing a data "PC"-relative access to a symbol through another symbol, by accessing the later via a GOT entry instead? More...

bool	supportGOTPCRelWithOffset () const
	Target GOT "PC"-relative relocation supports encoding an additional binary expression with an offset? More...

bool	supportDebugThreadLocalLocation () const
	Target supports TLS offset relocation in debug section? More...

virtual const MCExpr *	getIndirectSymViaGOTPCRel (const MCSymbol Sym, const MCValue &MV, int64_t Offset, MachineModuleInfo MMI, MCStreamer &Streamer) const
	Get the target specific PC relative GOT entry relocation. More...

virtual void	emitLinkerFlagsForGlobal (raw_ostream &OS, const GlobalValue *GV) const

virtual void	emitLinkerFlagsForUsed (raw_ostream &OS, const GlobalValue *GV) const

Public Member Functions inherited from llvm::MCObjectFileInfo
void	InitMCObjectFileInfo (const Triple &TT, bool PIC, MCContext &ctx, bool LargeCodeModel=false)

bool	getSupportsWeakOmittedEHFrame () const

bool	getSupportsCompactUnwindWithoutEHFrame () const

bool	getOmitDwarfIfHaveCompactUnwind () const

bool	getCommDirectiveSupportsAlignment () const

unsigned	getFDEEncoding () const

unsigned	getCompactUnwindDwarfEHFrameOnly () const

MCSection *	getTextSection () const

MCSection *	getDataSection () const

MCSection *	getBSSSection () const

MCSection *	getReadOnlySection () const

MCSection *	getLSDASection () const

MCSection *	getCompactUnwindSection () const

MCSection *	getDwarfAbbrevSection () const

MCSection *	getDwarfInfoSection () const

MCSection *	getDwarfInfoSection (uint64_t Hash) const

MCSection *	getDwarfLineSection () const

MCSection *	getDwarfLineStrSection () const

MCSection *	getDwarfFrameSection () const

MCSection *	getDwarfPubNamesSection () const

MCSection *	getDwarfPubTypesSection () const

MCSection *	getDwarfGnuPubNamesSection () const

MCSection *	getDwarfGnuPubTypesSection () const

const MCSection *	getDwarfDebugInlineSection () const

MCSection *	getDwarfStrSection () const

MCSection *	getDwarfLocSection () const

MCSection *	getDwarfARangesSection () const

MCSection *	getDwarfRangesSection () const

MCSection *	getDwarfRnglistsSection () const

MCSection *	getDwarfLoclistsSection () const

MCSection *	getDwarfMacinfoSection () const

MCSection *	getDwarfDebugNamesSection () const

MCSection *	getDwarfAccelNamesSection () const

MCSection *	getDwarfAccelObjCSection () const

MCSection *	getDwarfAccelNamespaceSection () const

MCSection *	getDwarfAccelTypesSection () const

MCSection *	getDwarfInfoDWOSection () const

MCSection *	getDwarfTypesSection (uint64_t Hash) const

MCSection *	getDwarfTypesDWOSection () const

MCSection *	getDwarfAbbrevDWOSection () const

MCSection *	getDwarfStrDWOSection () const

MCSection *	getDwarfLineDWOSection () const

MCSection *	getDwarfLocDWOSection () const

MCSection *	getDwarfStrOffDWOSection () const

MCSection *	getDwarfStrOffSection () const

MCSection *	getDwarfAddrSection () const

MCSection *	getDwarfRnglistsDWOSection () const

MCSection *	getDwarfCUIndexSection () const

MCSection *	getDwarfTUIndexSection () const

MCSection *	getDwarfSwiftASTSection () const

MCSection *	getCOFFDebugSymbolsSection () const

MCSection *	getCOFFDebugTypesSection () const

MCSection *	getCOFFGlobalTypeHashesSection () const

MCSection *	getTLSExtraDataSection () const

const MCSection *	getTLSDataSection () const

MCSection *	getTLSBSSSection () const

MCSection *	getStackMapSection () const

MCSection *	getFaultMapSection () const

MCSection *	getStackSizesSection (const MCSection &TextSec) const

MCSection *	getDataRelROSection () const

const MCSection *	getMergeableConst4Section () const

const MCSection *	getMergeableConst8Section () const

const MCSection *	getMergeableConst16Section () const

const MCSection *	getMergeableConst32Section () const

const MCSection *	getTLSTLVSection () const

const MCSection *	getTLSThreadInitSection () const

const MCSection *	getCStringSection () const

const MCSection *	getUStringSection () const

MCSection *	getTextCoalSection () const

const MCSection *	getConstTextCoalSection () const

const MCSection *	getConstDataSection () const

const MCSection *	getDataCoalSection () const

const MCSection *	getConstDataCoalSection () const

const MCSection *	getDataCommonSection () const

MCSection *	getDataBSSSection () const

const MCSection *	getFourByteConstantSection () const

const MCSection *	getEightByteConstantSection () const

const MCSection *	getSixteenByteConstantSection () const

MCSection *	getLazySymbolPointerSection () const

MCSection *	getNonLazySymbolPointerSection () const

MCSection *	getThreadLocalPointerSection () const

MCSection *	getDrectveSection () const

MCSection *	getPDataSection () const

MCSection *	getXDataSection () const

MCSection *	getSXDataSection () const

MCSection *	getGFIDsSection () const

MCSection *	getEHFrameSection ()

Environment	getObjectFileType () const

bool	isPositionIndependent () const

const Triple &	getTargetTriple () const

void	setSDKVersion (const VersionTuple &TheSDKVersion)

const VersionTuple &	getSDKVersion () const

Protected Attributes
MCSymbolRefExpr::VariantKind	PLTRelativeVariantKind

const TargetMachine *	TM

Protected Attributes inherited from llvm::TargetLoweringObjectFile
bool	SupportIndirectSymViaGOTPCRel = false

bool	SupportGOTPCRelWithOffset = true

bool	SupportDebugThreadLocalLocation = true

unsigned	PersonalityEncoding = 0
	PersonalityEncoding, LSDAEncoding, TTypeEncoding - Some encoding values for EH. More...

unsigned	LSDAEncoding = 0

unsigned	TTypeEncoding = 0

MCSection *	StaticCtorSection = nullptr
	This section contains the static constructor pointer list. More...

MCSection *	StaticDtorSection = nullptr
	This section contains the static destructor pointer list. More...

Protected Attributes inherited from llvm::MCObjectFileInfo
bool	CommDirectiveSupportsAlignment
	True if .comm supports alignment. More...

bool	SupportsWeakOmittedEHFrame
	True if target object file supports a weak_definition of constant 0 for an omitted EH frame. More...

bool	SupportsCompactUnwindWithoutEHFrame
	True if the target object file supports emitting a compact unwind section without an associated EH frame section. More...

bool	OmitDwarfIfHaveCompactUnwind
	OmitDwarfIfHaveCompactUnwind - True if the target object file supports having some functions with compact unwind and other with dwarf unwind. More...

unsigned	FDECFIEncoding = 0
	FDE CFI encoding. More...

unsigned	CompactUnwindDwarfEHFrameOnly
	Compact unwind encoding indicating that we should emit only an EH frame. More...

MCSection *	TextSection
	Section directive for standard text. More...

MCSection *	DataSection
	Section directive for standard data. More...

MCSection *	BSSSection
	Section that is default initialized to zero. More...

MCSection *	ReadOnlySection
	Section that is readonly and can contain arbitrary initialized data. More...

MCSection *	LSDASection
	If exception handling is supported by the target, this is the section the Language Specific Data Area information is emitted to. More...

MCSection *	CompactUnwindSection
	If exception handling is supported by the target and the target can support a compact representation of the CIE and FDE, this is the section to emit them into. More...

MCSection *	DwarfAbbrevSection

MCSection *	DwarfInfoSection

MCSection *	DwarfLineSection

MCSection *	DwarfLineStrSection

MCSection *	DwarfFrameSection

MCSection *	DwarfPubTypesSection

const MCSection *	DwarfDebugInlineSection

MCSection *	DwarfStrSection

MCSection *	DwarfLocSection

MCSection *	DwarfARangesSection

MCSection *	DwarfRangesSection

MCSection *	DwarfMacinfoSection

MCSection *	DwarfPubNamesSection

MCSection *	DwarfDebugNamesSection
	Accelerator table sections. More...

MCSection *	DwarfAccelNamesSection

MCSection *	DwarfAccelObjCSection

MCSection *	DwarfAccelNamespaceSection

MCSection *	DwarfAccelTypesSection

MCSection *	DwarfInfoDWOSection

MCSection *	DwarfTypesDWOSection

MCSection *	DwarfAbbrevDWOSection

MCSection *	DwarfStrDWOSection

MCSection *	DwarfLineDWOSection

MCSection *	DwarfLocDWOSection

MCSection *	DwarfStrOffDWOSection

MCSection *	DwarfStrOffSection
	The DWARF v5 string offset and address table sections. More...

MCSection *	DwarfAddrSection

MCSection *	DwarfRnglistsSection
	The DWARF v5 range list section. More...

MCSection *	DwarfLoclistsSection
	The DWARF v5 locations list section. More...

MCSection *	DwarfRnglistsDWOSection
	The DWARF v5 range list section for fission. More...

MCSection *	DwarfCUIndexSection

MCSection *	DwarfTUIndexSection

MCSection *	DwarfGnuPubNamesSection
	Section for newer gnu pubnames. More...

MCSection *	DwarfGnuPubTypesSection
	Section for newer gnu pubtypes. More...

MCSection *	DwarfSwiftASTSection

MCSection *	COFFDebugSymbolsSection

MCSection *	COFFDebugTypesSection

MCSection *	COFFGlobalTypeHashesSection

MCSection *	TLSExtraDataSection
	Extra TLS Variable Data section. More...

MCSection *	TLSDataSection
	Section directive for Thread Local data. ELF, MachO, COFF, and Wasm. More...

MCSection *	TLSBSSSection
	Section directive for Thread Local uninitialized data. More...

MCSection *	StackMapSection
	StackMap section. More...

MCSection *	FaultMapSection
	FaultMap section. More...

MCSection *	EHFrameSection
	EH frame section. More...

MCSection *	StackSizesSection
	Section containing metadata on function stack sizes. More...

DenseMap< const MCSymbol *, unsigned >	StackSizesUniquing

MCSection *	DataRelROSection

MCSection *	MergeableConst4Section

MCSection *	MergeableConst8Section

MCSection *	MergeableConst16Section

MCSection *	MergeableConst32Section

MCSection *	TLSTLVSection
	Section for thread local structure information. More...

const MCSection *	TLSThreadInitSection
	Section for thread local data initialization functions. More...

MCSection *	CStringSection

MCSection *	UStringSection

MCSection *	TextCoalSection

MCSection *	ConstTextCoalSection

MCSection *	ConstDataSection

MCSection *	DataCoalSection

MCSection *	ConstDataCoalSection

MCSection *	DataCommonSection

MCSection *	DataBSSSection

MCSection *	FourByteConstantSection

MCSection *	EightByteConstantSection

MCSection *	SixteenByteConstantSection

MCSection *	LazySymbolPointerSection

MCSection *	NonLazySymbolPointerSection

MCSection *	ThreadLocalPointerSection

MCSection *	DrectveSection
	COFF specific sections. More...

MCSection *	PDataSection

MCSection *	XDataSection

MCSection *	SXDataSection

MCSection *	GFIDsSection

Additional Inherited Members
Public Types inherited from llvm::MCObjectFileInfo
enum	Environment { IsMachO, IsELF, IsCOFF, IsWasm }

Static Public Member Functions inherited from llvm::TargetLoweringObjectFile
static SectionKind	getKindForGlobal (const GlobalObject *GO, const TargetMachine &TM)
	Classify the specified global variable into a set of target independent categories embodied in SectionKind. More...

Detailed Description

Definition at line 32 of file TargetLoweringObjectFileImpl.h.

Constructor & Destructor Documentation

◆ TargetLoweringObjectFileELF()

llvm::TargetLoweringObjectFileELF::TargetLoweringObjectFileELF ( )

default

◆ ~TargetLoweringObjectFileELF()

llvm::TargetLoweringObjectFileELF::~TargetLoweringObjectFileELF ( )

overridedefault

Member Function Documentation

◆ emitModuleMetadata()

void TargetLoweringObjectFileELF::emitModuleMetadata	(	MCStreamer &	Streamer,
		Module &	M
	)		const

overridevirtual

Emit Obj-C garbage collection and linker options.

Reimplemented from llvm::TargetLoweringObjectFile.

Definition at line 255 of file TargetLoweringObjectFileImpl.cpp.

References llvm::MCStreamer::AddBlankLine(), C, llvm::MCSymbolRefExpr::create(), E, llvm::MCStreamer::EmitBytes(), llvm::MCStreamer::emitCGProfileEntry(), llvm::MCStreamer::EmitIntValue(), llvm::MCStreamer::EmitLabel(), llvm::StringRef::empty(), F(), From, llvm::Module::getModuleFlagsMetadata(), llvm::Module::getNamedMetadata(), GetObjCImageInfo(), llvm::MDNode::getOperand(), llvm::MDNode::operands(), llvm::report_fatal_error(), llvm::ARMBuildAttrs::Section, llvm::ELF::SHF_ALLOC, llvm::ELF::SHF_EXCLUDE, llvm::ELF::SHT_LLVM_LINKER_OPTIONS, llvm::ELF::SHT_PROGBITS, llvm::MCStreamer::SwitchSection(), llvm::SystemZISD::TM, llvm::IndexedInstrProf::Version, and llvm::MCSymbolRefExpr::VK_None.

◆ emitPersonalityValue()

void TargetLoweringObjectFileELF::emitPersonalityValue	(	MCStreamer &	Streamer,
		const DataLayout &	DL,
		const MCSymbol *	Sym
	)		const

overridevirtual

◆ getCFIPersonalitySymbol()

MCSymbol * TargetLoweringObjectFileELF::getCFIPersonalitySymbol	(	const GlobalValue *	GV,
		const TargetMachine &	TM,
		MachineModuleInfo *	MMI
	)		const

overridevirtual

Reimplemented from llvm::TargetLoweringObjectFile.

Definition at line 331 of file TargetLoweringObjectFileImpl.cpp.

References llvm::dwarf::DW_EH_PE_absptr, llvm::dwarf::DW_EH_PE_indirect, llvm::MCSymbol::getName(), llvm::TargetMachine::getSymbol(), and llvm::report_fatal_error().

◆ getExplicitSectionGlobal()

MCSection * TargetLoweringObjectFileELF::getExplicitSectionGlobal	(	const GlobalObject *	GO,
		SectionKind	Kind,
		const TargetMachine &	TM
	)		const

overridevirtual

Targets should implement this method to assign a section to globals with an explicit section specfied.

The implementation of this method can assume that GO->hasSection() is true.

Implements llvm::TargetLoweringObjectFile.

Reimplemented in llvm::ARMElfTargetObjectFile, llvm::AMDGPUTargetObjectFile, llvm::XCoreTargetObjectFile, and llvm::HexagonTargetObjectFile.

Definition at line 533 of file TargetLoweringObjectFileImpl.cpp.

References assert(), llvm::AMDGPU::HSAMD::Kernel::Key::Attrs, C, llvm::dyn_cast(), F(), llvm::MCContext::GenericSectionID, llvm::MCSectionELF::getAssociatedSymbol(), getAssociatedSymbol(), llvm::GlobalVariable::getAttributes(), getELFComdat(), getELFKindForNamedSection(), getELFSectionFlags(), getELFSectionType(), getEntrySizeForKind(), llvm::Function::getFnAttribute(), llvm::Value::getName(), llvm::GlobalObject::getSection(), llvm::Attribute::getValueAsString(), llvm::Function::hasFnAttribute(), llvm::GlobalVariable::hasImplicitSection(), llvm::SectionKind::isBSS(), llvm::SectionKind::isData(), llvm::SectionKind::isReadOnly(), llvm::ARMBuildAttrs::Section, llvm::ELF::SHF_GROUP, and llvm::ELF::SHF_LINK_ORDER.

Referenced by llvm::HexagonTargetObjectFile::getExplicitSectionGlobal(), llvm::AMDGPUTargetObjectFile::getExplicitSectionGlobal(), and llvm::ARMElfTargetObjectFile::getExplicitSectionGlobal().

◆ getSectionForCommandLines()

MCSection * TargetLoweringObjectFileELF::getSectionForCommandLines ( ) const

overridevirtual

If supported, return the section to use for the llvm.commandline metadata.

Otherwise, return nullptr.

Reimplemented from llvm::TargetLoweringObjectFile.

Definition at line 798 of file TargetLoweringObjectFileImpl.cpp.

References llvm::ELF::SHF_MERGE, llvm::ELF::SHF_STRINGS, and llvm::ELF::SHT_PROGBITS.

◆ getSectionForConstant()

MCSection * TargetLoweringObjectFileELF::getSectionForConstant	(	const DataLayout &	DL,
		SectionKind	Kind,
		const Constant *	C,
		unsigned &	Align
	)		const

overridevirtual

Given a constant with the SectionKind, return a section that it should be placed in.

Given a mergeable constant with the specified size and relocation information, return a section that it should be placed in.

Reimplemented from llvm::TargetLoweringObjectFile.

Reimplemented in llvm::MipsTargetObjectFile, llvm::LanaiTargetObjectFile, and llvm::XCoreTargetObjectFile.

Definition at line 710 of file TargetLoweringObjectFileImpl.cpp.

References assert(), llvm::SectionKind::isMergeableConst16(), llvm::SectionKind::isMergeableConst32(), llvm::SectionKind::isMergeableConst4(), llvm::SectionKind::isMergeableConst8(), llvm::SectionKind::isReadOnly(), and llvm::SectionKind::isReadOnlyWithRel().

Referenced by llvm::LanaiTargetObjectFile::getSectionForConstant(), and llvm::MipsTargetObjectFile::getSectionForConstant().

◆ getSectionForJumpTable()

MCSection * TargetLoweringObjectFileELF::getSectionForJumpTable	(	const Function &	F,
		const TargetMachine &	TM
	)		const

overridevirtual

Reimplemented from llvm::TargetLoweringObjectFile.

Definition at line 686 of file TargetLoweringObjectFileImpl.cpp.

References C, llvm::GlobalObject::getComdat(), llvm::TargetMachine::getFunctionSections(), llvm::SectionKind::getReadOnly(), selectELFSectionForGlobal(), and llvm::ELF::SHF_ALLOC.

◆ getStaticCtorSection()

MCSection * TargetLoweringObjectFileELF::getStaticCtorSection	(	unsigned	Priority,
		const MCSymbol *	KeySym
	)		const

overridevirtual

Reimplemented from llvm::TargetLoweringObjectFile.

Definition at line 766 of file TargetLoweringObjectFileImpl.cpp.

References getStaticStructorSection().

◆ getStaticDtorSection()

MCSection * TargetLoweringObjectFileELF::getStaticDtorSection	(	unsigned	Priority,
		const MCSymbol *	KeySym
	)		const

overridevirtual

Reimplemented from llvm::TargetLoweringObjectFile.

Definition at line 772 of file TargetLoweringObjectFileImpl.cpp.

References getStaticStructorSection().

◆ getTTypeGlobalReference()

const MCExpr * TargetLoweringObjectFileELF::getTTypeGlobalReference	(	const GlobalValue *	GV,
		unsigned	Encoding,
		const TargetMachine &	TM,
		MachineModuleInfo *	MMI,
		MCStreamer &	Streamer
	)		const