This represents a section on a Mach-O system (used by Mac OS X). More...

#include "llvm/MC/MCSectionMachO.h"

Inheritance diagram for llvm::MCSectionMachO:

Public Member Functions
StringRef	getSegmentName () const

unsigned	getTypeAndAttributes () const

unsigned	getStubSize () const

MachO::SectionType	getType () const

bool	hasAttribute (unsigned Value) const

void	printSwitchToSection (const MCAsmInfo &MAI, const Triple &T, raw_ostream &OS, uint32_t Subsection) const override

bool	useCodeAlign () const override
	Return true if a .align directive should use "optimized nops" to fill instead of 0s.

void	allocAtoms ()

const MCSymbol *	getAtom (size_t I) const

void	setAtom (size_t I, const MCSymbol *Sym)

unsigned	getLayoutOrder () const

void	setLayoutOrder (unsigned Value)

Public Member Functions inherited from llvm::MCSection
	MCSection (const MCSection &)=delete

MCSection &	operator= (const MCSection &)=delete

StringRef	getName () const

bool	isText () const

SectionVariant	getVariant () const

MCSymbol *	getBeginSymbol ()

const MCSymbol *	getBeginSymbol () const

void	setBeginSymbol (MCSymbol *Sym)

MCSymbol *	getEndSymbol (MCContext &Ctx)

bool	hasEnded () const

Align	getAlign () const

void	setAlignment (Align Value)

void	ensureMinAlignment (Align MinAlignment)
	Makes sure that Alignment is at least MinAlignment.

unsigned	getOrdinal () const

void	setOrdinal (unsigned Value)

BundleLockStateType	getBundleLockState () const

void	setBundleLockState (BundleLockStateType NewState)

bool	isBundleLocked () const

bool	isBundleGroupBeforeFirstInst () const

void	setBundleGroupBeforeFirstInst (bool IsFirst)

bool	hasInstructions () const

void	setHasInstructions (bool Value)

bool	hasLayout () const

void	setHasLayout (bool Value)

bool	isRegistered () const

void	setIsRegistered (bool Value)

const MCDummyFragment &	getDummyFragment () const

MCDummyFragment &	getDummyFragment ()

FragList *	curFragList () const

iterator	begin () const

iterator	end () const

bool	empty () const

void	dump () const

virtual void	printSwitchToSection (const MCAsmInfo &MAI, const Triple &T, raw_ostream &OS, uint32_t Subsection) const =0

virtual bool	useCodeAlign () const =0
	Return true if a .align directive should use "optimized nops" to fill instead of 0s.

bool	isVirtualSection () const
	Check whether this section is "virtual", that is has no actual object file contents.

virtual StringRef	getVirtualSectionKind () const

Static Public Member Functions
static Error	ParseSectionSpecifier (StringRef Spec, StringRef &Segment, StringRef &Section, unsigned &TAA, bool &TAAParsed, unsigned &StubSize)
	Parse the section specifier indicated by "Spec".

static bool	classof (const MCSection *S)

Friends
class	MCContext

Additional Inherited Members
Public Types inherited from llvm::MCSection
enum	SectionVariant { SV_COFF = 0 , SV_ELF , SV_GOFF , SV_MachO , SV_Wasm , SV_XCOFF , SV_SPIRV , SV_DXContainer }

enum	BundleLockStateType { NotBundleLocked , BundleLocked , BundleLockedAlignToEnd }
	Express the state of bundle locked groups while emitting code. More...

Public Attributes inherited from llvm::MCSection
friend	MCAssembler

friend	MCObjectStreamer

Static Public Attributes inherited from llvm::MCSection
static constexpr unsigned	NonUniqueID = ~0U

Protected Member Functions inherited from llvm::MCSection
	MCSection (SectionVariant V, StringRef Name, bool IsText, bool IsVirtual, MCSymbol *Begin)

	~MCSection ()

Protected Attributes inherited from llvm::MCSection
StringRef	Name

SectionVariant	Variant

Detailed Description

This represents a section on a Mach-O system (used by Mac OS X).

On a Mac system, these are also described in /usr/include/mach-o/loader.h.

Definition at line 24 of file MCSectionMachO.h.

Member Function Documentation

◆ allocAtoms()

void MCSectionMachO::allocAtoms ( )

Definition at line 290 of file MCSectionMachO.cpp.

References llvm::MCSection::curFragList().

◆ classof()

static bool llvm::MCSectionMachO::classof ( const MCSection * S )

inlinestatic

Definition at line 90 of file MCSectionMachO.h.

References llvm::MCSection::getVariant(), and llvm::MCSection::SV_MachO.

◆ getAtom()

const MCSymbol * MCSectionMachO::getAtom ( size_t I ) const

Definition at line 296 of file MCSectionMachO.cpp.

References I.

◆ getLayoutOrder()

unsigned llvm::MCSectionMachO::getLayoutOrder ( ) const

inline

Definition at line 87 of file MCSectionMachO.h.

◆ getSegmentName()

StringRef llvm::MCSectionMachO::getSegmentName ( ) const

inline

Definition at line 47 of file MCSectionMachO.h.

Referenced by canUseLocalRelocation(), llvm::MCAsmInfoDarwin::isSectionAtomizableBySymbols(), and printSwitchToSection().

◆ getStubSize()

unsigned llvm::MCSectionMachO::getStubSize ( ) const

inline

Definition at line 55 of file MCSectionMachO.h.

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

◆ getType()

MachO::SectionType llvm::MCSectionMachO::getType ( ) const

inline

Definition at line 57 of file MCSectionMachO.h.

References llvm::MachO::SECTION_TYPE.

Referenced by canUseLocalRelocation(), llvm::MCAsmInfoDarwin::isSectionAtomizableBySymbols(), and printSwitchToSection().

◆ getTypeAndAttributes()

unsigned llvm::MCSectionMachO::getTypeAndAttributes ( ) const

inline

Definition at line 54 of file MCSectionMachO.h.

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

◆ hasAttribute()

bool llvm::MCSectionMachO::hasAttribute ( unsigned Value ) const

inline

Definition at line 61 of file MCSectionMachO.h.

Referenced by useCodeAlign().

◆ ParseSectionSpecifier()

Error MCSectionMachO::ParseSectionSpecifier	(	StringRef	Spec,
		StringRef &	Segment,
		StringRef &	Section,
		unsigned &	TAA,
		bool &	TAAParsed,
		unsigned &	StubSize
	)

static

Parse the section specifier indicated by "Spec".

ParseSectionSpecifier - Parse the section specifier indicated by "Spec".

This is a string that can appear after a .section directive in a mach-o flavored .s file. If successful, this fills in the specified Out parameters and returns an empty string. When an invalid section specifier is present, this returns an Error indicating the problem. If no TAA was parsed, TAA is not altered, and TAAWasSet becomes false.

This is a string that can appear after a .section directive in a mach-o flavored .s file. If successful, this fills in the specified Out parameters and returns an empty string. When an invalid section specifier is present, this returns a string indicating the problem.

Definition at line 181 of file MCSectionMachO.cpp.

References llvm::createStringError(), llvm::StringRef::empty(), llvm::find_if(), llvm::StringRef::getAsInteger(), Idx, llvm::inconvertibleErrorCode(), llvm::MachO::S_SYMBOL_STUBS, llvm::MachO::SECTION_TYPE, SectionAttrDescriptors, SectionTypeDescriptors, llvm::SmallVectorBase< Size_T >::size(), and llvm::Error::success().

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

◆ printSwitchToSection()

void MCSectionMachO::printSwitchToSection	(	const MCAsmInfo &	MAI,
		const Triple &	T,
		raw_ostream &	OS,
		uint32_t	Subsection
	)		const

overridevirtual

Implements llvm::MCSection.

Definition at line 108 of file MCSectionMachO.cpp.

References AssemblerName, assert(), AttrFlag, llvm::StringRef::empty(), llvm::MCSection::getName(), getSegmentName(), getType(), getTypeAndAttributes(), llvm::MachO::LAST_KNOWN_SECTION_TYPE, OS, llvm::MachO::SECTION_ATTRIBUTES, SectionAttrDescriptors, and SectionTypeDescriptors.

◆ setAtom()

void MCSectionMachO::setAtom	(	size_t	I,
		const MCSymbol *	Sym
	)

Definition at line 300 of file MCSectionMachO.cpp.

References I, and Sym.

◆ setLayoutOrder()

void llvm::MCSectionMachO::setLayoutOrder ( unsigned Value )

inline

Definition at line 88 of file MCSectionMachO.h.

◆ useCodeAlign()

bool MCSectionMachO::useCodeAlign ( ) const

overridevirtual

Return true if a .align directive should use "optimized nops" to fill instead of 0s.

Implements llvm::MCSection.

Definition at line 172 of file MCSectionMachO.cpp.

References hasAttribute(), and llvm::MachO::S_ATTR_PURE_INSTRUCTIONS.

Friends And Related Function Documentation

◆ MCContext

friend class MCContext

friend

Definition at line 44 of file MCSectionMachO.h.

The documentation for this class was generated from the following files:

include/llvm/MC/MCSectionMachO.h
lib/MC/MCSectionMachO.cpp

Public Member Functions

Static Public Member Functions

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ allocAtoms()

◆ classof()

◆ getAtom()

◆ getLayoutOrder()

◆ getSegmentName()

◆ getStubSize()

◆ getType()

◆ getTypeAndAttributes()

◆ hasAttribute()

◆ ParseSectionSpecifier()

◆ printSwitchToSection()

◆ setAtom()

◆ setLayoutOrder()

◆ useCodeAlign()

Friends And Related Function Documentation

◆ MCContext