llvm::MCFragment Class Reference

#include "llvm/MC/MCFragment.h"

Inheritance diagram for llvm::MCFragment:

Public Types
enum	FragmentType : uint8_t {   FT_Align , FT_Data , FT_Fill , FT_Nops ,   FT_Relaxable , FT_Org , FT_Dwarf , FT_DwarfFrame ,   FT_LEB , FT_BoundaryAlign , FT_SymbolId , FT_CVInlineLines ,   FT_CVDefRange , FT_PseudoProbe , FT_Dummy }

Public Member Functions
	MCFragment ()=delete
	MCFragment (const MCFragment &)=delete
MCFragment &	operator= (const MCFragment &)=delete
void	destroy ()
	Destroys the current fragment.
MCFragment *	getNext () const
FragmentType	getKind () const
MCSection *	getParent () const
void	setParent (MCSection *Value)
const MCSymbol *	getAtom () const
unsigned	getLayoutOrder () const
void	setLayoutOrder (unsigned Value)
bool	hasInstructions () const
	Does this fragment have instructions emitted into it? By default this is false, but specific fragment types may set it to true.
void	dump () const

Protected Member Functions
	MCFragment (FragmentType Kind, bool HasInstructions)

Protected Attributes
bool	HasInstructions: 1
	Used by subclasses for better packing.
bool	AlignToBundleEnd: 1
bool	LinkerRelaxable: 1
	MCDataFragment.
bool	AllowAutoPadding: 1
	MCRelaxableFragment: x86-specific.

Friends
class	MCAssembler
class	MCObjectStreamer
class	MCSection

Detailed Description

Definition at line 32 of file MCFragment.h.

Member Enumeration Documentation

FragmentType

enum llvm::MCFragment::FragmentType : uint8_t

Enumerator
FT_Align
FT_Data
FT_Fill
FT_Nops
FT_Relaxable
FT_Org
FT_Dwarf
FT_DwarfFrame
FT_LEB
FT_BoundaryAlign
FT_SymbolId
FT_CVInlineLines
FT_CVDefRange
FT_PseudoProbe
FT_Dummy

Definition at line 38 of file MCFragment.h.

Constructor & Destructor Documentation

MCFragment() [1/3]

MCFragment::MCFragment ( FragmentType  Kind, bool  HasInstructions  )

protected

Definition at line 27 of file MCFragment.cpp.

MCFragment() [2/3]

llvm::MCFragment::MCFragment ( )

delete

MCFragment() [3/3]

llvm::MCFragment::MCFragment ( const MCFragment &  )

delete

Member Function Documentation

destroy()

void MCFragment::destroy

(

)

Destroys the current fragment.

This must be used instead of delete as MCFragment is non-virtual. This method will dispatch to the appropriate subclass.

Definition at line 31 of file MCFragment.cpp.

References FT_Align, FT_BoundaryAlign, FT_CVDefRange, FT_CVInlineLines, FT_Data, FT_Dummy, FT_Dwarf, FT_DwarfFrame, FT_Fill, FT_LEB, FT_Nops, FT_Org, FT_PseudoProbe, FT_Relaxable, and FT_SymbolId.

Referenced by llvm::CodeViewContext::~CodeViewContext().

dump()

LLVM_DUMP_METHOD void MCFragment::dump

(

)

const

Definition at line 99 of file MCFragment.cpp.

References DF, llvm::errs(), F, FT_Align, FT_BoundaryAlign, FT_CVDefRange, FT_CVInlineLines, FT_Data, FT_Dummy, FT_Dwarf, FT_DwarfFrame, FT_Fill, FT_LEB, FT_Nops, FT_Org, FT_PseudoProbe, FT_Relaxable, FT_SymbolId, getKind(), hasInstructions(), OS, and llvm::SmallVectorBase< Size_T >::size().

getAtom()

const MCSymbol * MCFragment::getAtom

(

)

const

Definition at line 81 of file MCFragment.cpp.

Referenced by llvm::MachObjectWriter::getAtom(), and llvm::MachObjectWriter::isSymbolRefDifferenceFullyResolvedImpl().

getKind()

FragmentType llvm::MCFragment::getKind ( ) const

inline

Definition at line 97 of file MCFragment.h.

Referenced by dump(), and getOffsetAndDataFragment().

getLayoutOrder()

unsigned llvm::MCFragment::getLayoutOrder ( ) const

inline

Definition at line 104 of file MCFragment.h.

Referenced by AttemptToFoldSymbolOffsetDifference(), and llvm::MCObjectStreamer::insert().

getNext()

MCFragment * llvm::MCFragment::getNext ( ) const

inline

Definition at line 95 of file MCFragment.h.

Referenced by AttemptToFoldSymbolOffsetDifference().

getParent()

MCSection * llvm::MCFragment::getParent ( ) const

inline

Definition at line 99 of file MCFragment.h.

Referenced by AttemptToFoldSymbolOffsetDifference(), llvm::MCAssembler::computeFragmentSize(), llvm::RISCVAsmBackend::evaluateTargetFixup(), llvm::MachObjectWriter::getAtom(), llvm::MCStreamer::getCurrentFragment(), llvm::MCStreamer::getCurrentSectionOnly(), llvm::MachObjectWriter::getFragmentAddress(), llvm::MCSymbol::getSection(), llvm::MachObjectWriter::getSymbolAddress(), llvm::MCObjectStreamer::insert(), llvm::MCObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(), llvm::ELFObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(), llvm::MachObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(), llvm::WinCOFFObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(), llvm::WinCOFFWriter::recordRelocation(), llvm::ELFObjectWriter::recordRelocation(), llvm::WinCOFFObjectWriter::recordRelocation(), llvm::MCBoundaryAlignFragment::setLastFragment(), and llvm::LoongArchAsmBackend::shouldInsertFixupForCodeAlign().

hasInstructions()

bool llvm::MCFragment::hasInstructions ( ) const

inline

Does this fragment have instructions emitted into it? By default this is false, but specific fragment types may set it to true.

Definition at line 109 of file MCFragment.h.

References HasInstructions.

Referenced by dump(), llvm::MCAssembler::layout(), and llvm::MCAssembler::writeFragmentPadding().

operator=()

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

delete

setLayoutOrder()

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

inline

Definition at line 105 of file MCFragment.h.

setParent()

void llvm::MCFragment::setParent ( MCSection *  Value )

inline

Definition at line 100 of file MCFragment.h.

Referenced by llvm::MCSection::MCSection().

Friends And Related Function Documentation

MCAssembler

friend class MCAssembler

friend

Definition at line 33 of file MCFragment.h.

MCObjectStreamer

friend class MCObjectStreamer

friend

Definition at line 34 of file MCFragment.h.

MCSection

friend class MCSection

friend

Definition at line 35 of file MCFragment.h.

Member Data Documentation

AlignToBundleEnd

bool llvm::MCFragment::AlignToBundleEnd

protected

Definition at line 76 of file MCFragment.h.

Referenced by llvm::MCEncodedFragment::alignToBundleEnd(), and llvm::MCEncodedFragment::setAlignToBundleEnd().

AllowAutoPadding

bool llvm::MCFragment::AllowAutoPadding

protected

MCRelaxableFragment: x86-specific.

Definition at line 80 of file MCFragment.h.

Referenced by llvm::MCRelaxableFragment::getAllowAutoPadding(), and llvm::MCRelaxableFragment::setAllowAutoPadding().

HasInstructions

bool llvm::MCFragment::HasInstructions

protected

Used by subclasses for better packing.

MCEncodedFragment

Definition at line 75 of file MCFragment.h.

Referenced by hasInstructions(), and llvm::MCEncodedFragment::setHasInstructions().

LinkerRelaxable

bool llvm::MCFragment::LinkerRelaxable

protected

MCDataFragment.

Definition at line 78 of file MCFragment.h.

Referenced by llvm::MCDataFragment::isLinkerRelaxable(), and llvm::MCDataFragment::setLinkerRelaxable().

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

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