llvm::MCSection Class Reference

Instances of this class represent a uniqued identifier for a section in the current translation unit. More...

#include "llvm/MC/MCSection.h"

Inheritance diagram for llvm::MCSection:

Classes
struct	FragList
struct	iterator

Public Member Functions
	MCSection (const MCSection &)=delete
MCSection &	operator= (const MCSection &)=delete
StringRef	getName () const
bool	isText () 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)
bool	hasInstructions () const
void	setHasInstructions (bool Value)
bool	isRegistered () const
void	setIsRegistered (bool Value)
unsigned	firstLinkerRelaxable () const
bool	isLinkerRelaxable () const
void	setFirstLinkerRelaxable (unsigned Order)
MCFragment &	getDummyFragment ()
FragList *	curFragList () const
iterator	begin () const
iterator	end () const
void	dump (DenseMap< const MCFragment *, SmallVector< const MCSymbol *, 0 > > *FragToSyms=nullptr) const
bool	isBssSection () const
	Check whether this section is "virtual", that is has no actual object file contents.

Public Attributes
friend	MCAssembler
friend	MCObjectStreamer

Static Public Attributes
static constexpr unsigned	NonUniqueID = ~0U

Protected Member Functions
	MCSection (StringRef Name, bool IsText, bool IsBss, MCSymbol *Begin)

Protected Attributes
StringRef	Name

Friends
class	MCFragment

Detailed Description

Instances of this class represent a uniqued identifier for a section in the current translation unit.

The MCContext class uniques and creates these.

Definition at line 496 of file MCSection.h.

Constructor & Destructor Documentation

MCSection() [1/2]

MCSection::MCSection ( StringRef  Name, bool  IsText, bool  IsBss, MCSymbol *  Begin  )

protected

Definition at line 21 of file MCSection.cpp.

References llvm::MCFragment::setParent().

MCSection() [2/2]

llvm::MCSection::MCSection ( const MCSection &  )

delete

Member Function Documentation

begin()

iterator llvm::MCSection::begin ( ) const

inline

Definition at line 604 of file MCSection.h.

References llvm::MCSection::FragList::Head.

curFragList()

FragList * llvm::MCSection::curFragList ( ) const

inline

Definition at line 603 of file MCSection.h.

Referenced by llvm::MCSectionMachO::allocAtoms(), llvm::MCAssembler::getSectionAddressSize(), llvm::WinCOFFWriter::writeObject(), and llvm::MachObjectWriter::writeObject().

dump()

LLVM_DUMP_METHOD void MCSection::dump

(

DenseMap< const MCFragment *, SmallVector< const MCSymbol *, 0 > > *

FragToSyms = nullptr

)

const

Definition at line 36 of file MCSection.cpp.

References llvm::errs(), F, firstLinkerRelaxable(), getName(), isLinkerRelaxable(), OS, and Sym.

Referenced by llvm::MCAssembler::dump().

end()

iterator llvm::MCSection::end ( ) const

inline

Definition at line 605 of file MCSection.h.

ensureMinAlignment()

void llvm::MCSection::ensureMinAlignment ( Align  MinAlignment )

inline

Makes sure that Alignment is at least MinAlignment.

Definition at line 583 of file MCSection.h.

Referenced by llvm::MCWinCOFFStreamer::emitCOFFSafeSEH(), llvm::MCWinCOFFStreamer::emitCOFFSymbolIndex(), and llvm::MipsTargetELFStreamer::finish().

firstLinkerRelaxable()

unsigned llvm::MCSection::firstLinkerRelaxable ( ) const

inline

Definition at line 597 of file MCSection.h.

Referenced by dump().

getAlign()

Align llvm::MCSection::getAlign ( ) const

inline

Definition at line 579 of file MCSection.h.

Referenced by addData(), getAlignment(), llvm::MachObjectWriter::getPaddingSize(), and llvm::MachObjectWriter::writeSection().

getBeginSymbol() [1/2]

MCSymbol * llvm::MCSection::getBeginSymbol ( )

inline

Definition at line 568 of file MCSection.h.

Referenced by llvm::DwarfCompileUnit::addAddrTableBase(), llvm::DwarfUnit::addRnglistsBase(), llvm::DwarfCompileUnit::addScopeRangeList(), llvm::DwarfUnit::addStringOffsetsStart(), llvm::DwarfCompileUnit::applyStmtList(), llvm::MCStreamer::changeSection(), llvm::MCContext::createELFRelSection(), llvm::DwarfUnit::emitCommonHeader(), llvm::MCObjectStreamer::emitRelocDirective(), llvm::MCObjectFileInfo::getBBAddrMapSection(), llvm::MCObjectFileInfo::getCallGraphSection(), llvm::MCObjectFileInfo::getKCFITrapSection(), llvm::MCObjectFileInfo::getPCSection(), llvm::MCObjectFileInfo::getPseudoProbeSection(), llvm::MCObjectFileInfo::getStackSizesSection(), llvm::DwarfCompileUnit::initStmtList(), llvm::MCDwarfLineStr::MCDwarfLineStr(), llvm::ELFObjectWriter::recordRelocation(), llvm::LoongArchAsmBackend::relaxAlign(), and llvm::DwarfCompileUnit::updateSubprogramScopeDIE().

getBeginSymbol() [2/2]

const MCSymbol * llvm::MCSection::getBeginSymbol ( ) const

inline

Definition at line 569 of file MCSection.h.

getDummyFragment()

MCFragment & llvm::MCSection::getDummyFragment ( )

inline

Definition at line 601 of file MCSection.h.

Referenced by llvm::MCStreamer::changeSection().

getEndSymbol()

MCSymbol * MCSection::getEndSymbol

(

MCContext &

Ctx

)

Definition at line 27 of file MCSection.cpp.

References llvm::MCContext::createTempSymbol().

getName()

StringRef llvm::MCSection::getName ( ) const

inline

Definition at line 565 of file MCSection.h.

References Name.

Referenced by addData(), llvm::BTFDebug::beginFunctionImpl(), canUseLocalRelocation(), dump(), llvm::MCContext::getAssociativeCOFFSection(), llvm::TargetLoweringObjectFileGOFF::getModuleMetadata(), llvm::MCObjectFileInfo::getPseudoProbeSection(), llvm::TargetLoweringObjectFileELF::getSectionForMachineBasicBlock(), isDwoSection(), llvm::MCAsmInfoDarwin::isSectionAtomizableBySymbols(), llvm::XtensaTargetELFStreamer::startLiteralSection(), llvm::WinCOFFWriter::writeObject(), and llvm::MachObjectWriter::writeSection().

getOrdinal()

unsigned llvm::MCSection::getOrdinal ( ) const

inline

Definition at line 588 of file MCSection.h.

hasEnded()

bool MCSection::hasEnded

(

)

const

Definition at line 33 of file MCSection.cpp.

References llvm::MCSymbol::isInSection().

hasInstructions()

bool llvm::MCSection::hasInstructions ( ) const

inline

Definition at line 591 of file MCSection.h.

Referenced by llvm::AMDGPUAsmPrinter::doFinalization(), and llvm::MCObjectStreamer::mayHaveInstructions().

isBssSection()

bool llvm::MCSection::isBssSection ( ) const

inline

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

Definition at line 612 of file MCSection.h.

Referenced by llvm::AsmPrinter::emitGlobalVariable(), llvm::MachObjectWriter::getPaddingSize(), llvm::MCAssembler::getSectionFileSize(), llvm::MachObjectWriter::writeSection(), and llvm::MCAssembler::writeSectionData().

isLinkerRelaxable()

bool llvm::MCSection::isLinkerRelaxable ( ) const

inline

Definition at line 598 of file MCSection.h.

Referenced by llvm::LoongArchAsmBackend::addReloc(), attemptToFoldSymbolOffsetDifference(), and dump().

isRegistered()

bool llvm::MCSection::isRegistered ( ) const

inline

Definition at line 594 of file MCSection.h.

Referenced by llvm::AArch64TargetStreamer::emitNoteSection().

isText()

bool llvm::MCSection::isText ( ) const

inline

Definition at line 566 of file MCSection.h.

Referenced by llvm::MCAsmInfoXCOFF::useCodeAlign().

operator=()

MCSection & llvm::MCSection::operator= ( const MCSection &  )

delete

setAlignment()

void llvm::MCSection::setAlignment ( Align  Value )

inline

Definition at line 580 of file MCSection.h.

Referenced by llvm::MipsTargetELFStreamer::emitDirectiveEnd(), llvm::MipsTargetELFStreamer::emitMipsAbiFlags(), llvm::MipsRegInfoRecord::EmitMipsOptionRecord(), llvm::dwarf_linker::classic::DwarfStreamer::emitSwiftAST(), llvm::dwarf_linker::classic::DwarfStreamer::emitSwiftReflectionSection(), and llvm::XtensaTargetELFStreamer::startLiteralSection().

setBeginSymbol()

void llvm::MCSection::setBeginSymbol ( MCSymbol *  Sym )

inline

Definition at line 572 of file MCSection.h.

References assert(), and Sym.

Referenced by llvm::TargetLoweringObjectFileGOFF::getModuleMetadata().

setFirstLinkerRelaxable()

void llvm::MCSection::setFirstLinkerRelaxable ( unsigned  Order )

inline

Definition at line 599 of file MCSection.h.

setHasInstructions()

void llvm::MCSection::setHasInstructions ( bool  Value )

inline

Definition at line 592 of file MCSection.h.

Referenced by llvm::MCObjectStreamer::emitInstruction().

setIsRegistered()

void llvm::MCSection::setIsRegistered ( bool  Value )

inline

Definition at line 595 of file MCSection.h.

setOrdinal()

void llvm::MCSection::setOrdinal ( unsigned  Value )

inline

Definition at line 589 of file MCSection.h.

Referenced by llvm::MCAssembler::layout().

Friends And Related Function Documentation

MCFragment

friend class MCFragment

friend

Definition at line 500 of file MCSection.h.

Member Data Documentation

MCAssembler

friend llvm::MCSection::MCAssembler

Definition at line 498 of file MCSection.h.

MCObjectStreamer

friend llvm::MCSection::MCObjectStreamer

Definition at line 499 of file MCSection.h.

Name

StringRef llvm::MCSection::Name

protected

Definition at line 557 of file MCSection.h.

Referenced by llvm::MCSectionCOFF::isImplicitlyDiscardable(), and llvm::MCSectionCOFF::shouldOmitSectionDirective().

NonUniqueID

constexpr unsigned llvm::MCSection::NonUniqueID = ~0U

staticconstexpr

Definition at line 501 of file MCSection.h.

Referenced by calcUniqueIDUpdateFlagsAndSize(), llvm::MCContext::createELFGroupSection(), llvm::AsmPrinter::emitPatchableFunctionEntries(), llvm::AsmPrinter::emitXRayTable(), llvm::MCContext::getAssociativeCOFFSection(), llvm::MCContext::getCOFFSection(), llvm::MCContext::getELFSection(), llvm::TargetLoweringObjectFileWasm::getExplicitSectionGlobal(), llvm::TargetLoweringObjectFileELF::getSectionForLSDA(), llvm::TargetLoweringObjectFileELF::getSectionForMachineBasicBlock(), llvm::MCSectionCOFF::isUnique(), llvm::MCSectionELF::isUnique(), llvm::MCContext::recordELFMergeableSectionInfo(), selectELFSectionForGlobal(), llvm::TargetLoweringObjectFileCOFF::SelectSectionForGlobal(), and selectWasmSectionForGlobal().

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

• include/llvm/MC/MCSection.h
• lib/MC/MCSection.cpp