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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:
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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 521 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 Name.

Referenced by getBeginSymbol(), llvm::MCSectionELF::getLinkedToSection(), llvm::MCSectionCOFF::MCAsmInfoCOFF, llvm::MCSectionELF::MCAsmInfoELF, llvm::MCSectionWasm::MCAsmInfoWasm, llvm::MCSectionXCOFF::MCAsmInfoXCOFF, llvm::MCSectionDXContainer::MCContext, llvm::MCSectionSPIRV::MCContext, MCSection(), llvm::MCSectionGOFF::MCSymbolGOFF, and operator=().

◆  MCSection() [2/2]

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

References MCSection().

Member Function Documentation

◆  begin()

iterator llvm::MCSection::begin ( ) const
inline

Definition at line 629 of file MCSection.h.

◆  curFragList()

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

Definition at line 628 of file MCSection.h.

Referenced by llvm::MCSectionMachO::allocAtoms(), llvm::MCAssembler::getSectionAddressSize(), 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(), LLVM_DUMP_METHOD, and MCFragment.

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

◆  end()

iterator llvm::MCSection::end ( ) const
inline

Definition at line 630 of file MCSection.h.

◆  ensureMinAlignment()

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

Makes sure that Alignment is at least MinAlignment.

Definition at line 608 of file MCSection.h.

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

◆  firstLinkerRelaxable()

unsigned llvm::MCSection::firstLinkerRelaxable ( ) const
inline

Definition at line 622 of file MCSection.h.

Referenced by dump().

◆  getAlign()

Align llvm::MCSection::getAlign ( ) const
inline

Definition at line 604 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 593 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::ELFObjectWriter::executePostLayoutBinding(), llvm::MCObjectFileInfo::getBBAddrMapSection(), getBeginSymbol(), llvm::MCObjectFileInfo::getCallGraphSection(), llvm::MCObjectFileInfo::getKCFITrapSection(), llvm::MCObjectFileInfo::getPCSection(), llvm::MCObjectFileInfo::getPseudoProbeSection(), llvm::MCObjectFileInfo::getStackSizesSection(), llvm::DwarfCompileUnit::initStmtList(), llvm::MCDwarfLineStr::MCDwarfLineStr(), llvm::ELFObjectWriter::recordRelocation(), and llvm::LoongArchAsmBackend::relaxAlign().

◆  getBeginSymbol() [2/2]

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

Definition at line 594 of file MCSection.h.

References getBeginSymbol(), and MCSection().

◆  getDummyFragment()

MCFragment & llvm::MCSection::getDummyFragment ( )
inline

Definition at line 626 of file MCSection.h.

References MCFragment.

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

◆  getEndSymbol()

MCSymbol * MCSection::getEndSymbol ( MCContext & Ctx )

Definition at line 27 of file MCSection.cpp.

◆  getName()

StringRef llvm::MCSection::getName ( ) const
inline

Definition at line 590 of file MCSection.h.

References Name.

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

◆  getOrdinal()

unsigned llvm::MCSection::getOrdinal ( ) const
inline

Definition at line 613 of file MCSection.h.

◆  hasEnded()

bool MCSection::hasEnded ( ) const

Definition at line 33 of file MCSection.cpp.

◆  hasInstructions()

bool llvm::MCSection::hasInstructions ( ) const
inline

Definition at line 616 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 637 of file MCSection.h.

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

◆  isLinkerRelaxable()

bool llvm::MCSection::isLinkerRelaxable ( ) const
inline

Definition at line 623 of file MCSection.h.

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

◆  isRegistered()

bool llvm::MCSection::isRegistered ( ) const
inline

Definition at line 619 of file MCSection.h.

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

◆  isText()

bool llvm::MCSection::isText ( ) const
inline

Definition at line 591 of file MCSection.h.

Referenced by llvm::MCSectionWasm::MCAsmInfoWasm, llvm::MCSectionXCOFF::MCAsmInfoXCOFF, llvm::MCSectionDXContainer::MCContext, llvm::MCSectionGOFF::MCSymbolGOFF, and llvm::MCAsmInfoXCOFF::useCodeAlign().

◆  operator=()

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

References MCSection().

◆  setAlignment()

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

Definition at line 605 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 597 of file MCSection.h.

References assert().

◆  setFirstLinkerRelaxable()

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

Definition at line 624 of file MCSection.h.

◆  setHasInstructions()

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

Definition at line 617 of file MCSection.h.

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

◆  setIsRegistered()

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

Definition at line 620 of file MCSection.h.

◆  setOrdinal()

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

Definition at line 614 of file MCSection.h.

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

◆  MCFragment

friend class MCFragment
friend

Definition at line 525 of file MCSection.h.

References MCFragment.

Referenced by dump(), getDummyFragment(), llvm::MCSection::iterator::iterator(), MCFragment, and llvm::MCSection::iterator::operator*().

Member Data Documentation

◆  MCAssembler

friend llvm::MCSection::MCAssembler

Definition at line 523 of file MCSection.h.

◆  MCObjectStreamer

friend llvm::MCSection::MCObjectStreamer

Definition at line 524 of file MCSection.h.

◆  Name

StringRef llvm::MCSection::Name
protected

Definition at line 582 of file MCSection.h.

Referenced by getName(), llvm::MCSectionCOFF::isImplicitlyDiscardable(), llvm::MCSectionCOFF::MCAsmInfoCOFF, llvm::MCSectionELF::MCAsmInfoELF, llvm::MCSectionWasm::MCAsmInfoWasm, llvm::MCSectionXCOFF::MCAsmInfoXCOFF, llvm::MCSectionDXContainer::MCContext, MCSection(), llvm::MCSectionGOFF::MCSymbolGOFF, llvm::MCSectionGOFF::setName(), and llvm::MCSectionCOFF::shouldOmitSectionDirective().

◆  NonUniqueID

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

Definition at line 526 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::MCContext::getELFSection(), 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().

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