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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:
[legend]

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.
Align getPreferredAlignment () const
void ensurePreferredAlignment (Align PrefAlign)
Align getAlignmentForObjectFile (uint64_t Size) const
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 517 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 639 of file MCSection.h.

◆ curFragList()

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

Definition at line 638 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 46 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 640 of file MCSection.h.

◆ ensureMinAlignment()

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

Makes sure that Alignment is at least MinAlignment.

Definition at line 605 of file MCSection.h.

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

◆ ensurePreferredAlignment()

void llvm::MCSection::ensurePreferredAlignment ( Align PrefAlign)
inline

Definition at line 616 of file MCSection.h.

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

◆ firstLinkerRelaxable()

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

Definition at line 632 of file MCSection.h.

Referenced by dump().

◆ getAlign()

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

Definition at line 601 of file MCSection.h.

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

◆ getAlignmentForObjectFile()

Align MCSection::getAlignmentForObjectFile ( uint64_t Size) const

Definition at line 33 of file MCSection.cpp.

References getAlign(), getPreferredAlignment(), llvm::NextPowerOf2(), and Size.

◆ getBeginSymbol() [1/2]

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

Definition at line 590 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::BPFAsmPrinter::emitJumpTableInfo(), 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 591 of file MCSection.h.

References getBeginSymbol(), and MCSection().

◆ getDummyFragment()

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

Definition at line 636 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 587 of file MCSection.h.

References Name.

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

◆ getOrdinal()

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

Definition at line 623 of file MCSection.h.

◆ getPreferredAlignment()

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

Definition at line 610 of file MCSection.h.

Referenced by getAlignmentForObjectFile().

◆ hasEnded()

bool MCSection::hasEnded ( ) const

Definition at line 43 of file MCSection.cpp.

◆ hasInstructions()

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

Definition at line 626 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 647 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 633 of file MCSection.h.

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

◆ isRegistered()

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

Definition at line 629 of file MCSection.h.

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

◆ isText()

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

Definition at line 588 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 602 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 594 of file MCSection.h.

References assert().

◆ setFirstLinkerRelaxable()

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

Definition at line 634 of file MCSection.h.

◆ setHasInstructions()

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

Definition at line 627 of file MCSection.h.

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

◆ setIsRegistered()

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

Definition at line 630 of file MCSection.h.

◆ setOrdinal()

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

Definition at line 624 of file MCSection.h.

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

◆ MCFragment

friend class MCFragment
friend

Definition at line 521 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 519 of file MCSection.h.

◆ MCObjectStreamer

friend llvm::MCSection::MCObjectStreamer

Definition at line 520 of file MCSection.h.

◆ Name

StringRef llvm::MCSection::Name
protected

Definition at line 579 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 522 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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