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, const MCExpr *Subsection) const override

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

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

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

MCSection &	operator= (const MCSection &)=delete

StringRef	getName () const

SectionKind	getKind () 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)

unsigned	getLayoutOrder () const

void	setLayoutOrder (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	isRegistered () const

void	setIsRegistered (bool Value)

MCSection::FragmentListType &	getFragmentList ()

const MCSection::FragmentListType &	getFragmentList () const

const MCDummyFragment &	getDummyFragment () const

MCDummyFragment &	getDummyFragment ()

iterator	begin ()

const_iterator	begin () const

iterator	end ()

const_iterator	end () const

MCSection::iterator	getSubsectionInsertionPoint (unsigned Subsection)

void	dump () const

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

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

virtual bool	isVirtualSection () const =0
	Check whether this section is "virtual", that is has no actual object file contents.

virtual StringRef	getVirtualSectionKind () const

void	addPendingLabel (MCSymbol *label, unsigned Subsection=0)
	Add a pending label for the requested subsection.

void	flushPendingLabels (MCFragment *F, uint64_t FOffset=0, unsigned Subsection=0)
	Associate all pending labels in a subsection with a fragment.

void	flushPendingLabels ()
	Associate all pending labels with empty data fragments.

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)

Static Public Member Functions inherited from llvm::MCSection
static FragmentListType MCSection::*	getSublistAccess (MCFragment *)
	Support for MCFragment::getNextNode().

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...

using	FragmentListType = iplist< MCFragment >

using	const_iterator = FragmentListType::const_iterator

using	iterator = FragmentListType::iterator

using	const_reverse_iterator = FragmentListType::const_reverse_iterator

using	reverse_iterator = FragmentListType::reverse_iterator

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

Protected Member Functions inherited from llvm::MCSection
	MCSection (SectionVariant V, StringRef Name, SectionKind K, MCSymbol *Begin)

	~MCSection ()

Protected Attributes inherited from llvm::MCSection
StringRef	Name

SectionVariant	Variant

SectionKind	Kind

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

◆ classof()

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

inlinestatic

Definition at line 77 of file MCSectionMachO.h.

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

◆ getSegmentName()

StringRef llvm::MCSectionMachO::getSegmentName ( ) const

inline

Definition at line 40 of file MCSectionMachO.h.

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

◆ getStubSize()

unsigned llvm::MCSectionMachO::getStubSize ( ) const

inline

Definition at line 48 of file MCSectionMachO.h.

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

◆ getType()

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

inline

Definition at line 50 of file MCSectionMachO.h.

References llvm::MachO::SECTION_TYPE.

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

◆ getTypeAndAttributes()

unsigned llvm::MCSectionMachO::getTypeAndAttributes ( ) const

inline

Definition at line 47 of file MCSectionMachO.h.

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

◆ hasAttribute()

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

inline

Definition at line 54 of file MCSectionMachO.h.

Referenced by useCodeAlign().

◆ isVirtualSection()

bool MCSectionMachO::isVirtualSection ( ) const

overridevirtual

Check whether this section is "virtual", that is has no actual object file contents.

Implements llvm::MCSection.

Definition at line 175 of file MCSectionMachO.cpp.

References getType(), llvm::MachO::S_GB_ZEROFILL, llvm::MachO::S_THREAD_LOCAL_ZEROFILL, and llvm::MachO::S_ZEROFILL.

◆ 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 186 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().