LLVM 17.0.0git
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llvm::MCSectionCOFF Class Referencefinal

This represents a section on Windows. More...

#include "llvm/MC/MCSectionCOFF.h"

Inheritance diagram for llvm::MCSectionCOFF:
Inheritance graph
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Public Member Functions

bool shouldOmitSectionDirective (StringRef Name, const MCAsmInfo &MAI) const
 Decides whether a '.section' directive should be printed before the section name.
 
unsigned getCharacteristics () const
 
MCSymbol * getCOMDATSymbol () const
 
int getSelection () const
 
void setSelection (int Selection) 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.
 
StringRef getVirtualSectionKind () const override
 
unsigned getOrAssignWinCFISectionID (unsigned *NextID) const
 
- 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 bool isImplicitlyDiscardable (StringRef Name)
 
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 Windows.

Definition at line 26 of file MCSectionCOFF.h.

Member Function Documentation

◆ classof()

static bool llvm::MCSectionCOFF::classof ( const MCSection *  S)
inlinestatic

Definition at line 89 of file MCSectionCOFF.h.

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

◆ getCharacteristics()

unsigned llvm::MCSectionCOFF::getCharacteristics ( ) const
inline

Definition at line 66 of file MCSectionCOFF.h.

References Characteristics.

Referenced by llvm::MCContext::getAssociativeCOFFSection(), isVirtualSection(), and printSwitchToSection().

◆ getCOMDATSymbol()

MCSymbol * llvm::MCSectionCOFF::getCOMDATSymbol ( ) const
inline

Definition at line 67 of file MCSectionCOFF.h.

◆ getOrAssignWinCFISectionID()

unsigned llvm::MCSectionCOFF::getOrAssignWinCFISectionID ( unsigned *  NextID) const
inline

Definition at line 79 of file MCSectionCOFF.h.

◆ getSelection()

int llvm::MCSectionCOFF::getSelection ( ) const
inline

Definition at line 68 of file MCSectionCOFF.h.

References Selection.

◆ getVirtualSectionKind()

StringRef MCSectionCOFF::getVirtualSectionKind ( ) const
overridevirtual

Reimplemented from llvm::MCSection.

Definition at line 115 of file MCSectionCOFF.cpp.

◆ isImplicitlyDiscardable()

static bool llvm::MCSectionCOFF::isImplicitlyDiscardable ( StringRef  Name)
inlinestatic

Definition at line 85 of file MCSectionCOFF.h.

References llvm::MCSection::Name, and llvm::StringRef::startswith().

Referenced by printSwitchToSection().

◆ isVirtualSection()

bool MCSectionCOFF::isVirtualSection ( ) const
overridevirtual

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

Implements llvm::MCSection.

Definition at line 111 of file MCSectionCOFF.cpp.

References getCharacteristics(), and llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA.

◆ printSwitchToSection()

void MCSectionCOFF::printSwitchToSection ( const MCAsmInfo &  MAI,
const Triple &  T,
raw_ostream &  OS,
const MCExpr *  Subsection 
) const
overridevirtual

Implements llvm::MCSection.

Definition at line 37 of file MCSectionCOFF.cpp.

References assert(), getCharacteristics(), llvm::MCSection::getName(), llvm::COFF::IMAGE_COMDAT_SELECT_ANY, llvm::COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE, llvm::COFF::IMAGE_COMDAT_SELECT_EXACT_MATCH, llvm::COFF::IMAGE_COMDAT_SELECT_LARGEST, llvm::COFF::IMAGE_COMDAT_SELECT_NEWEST, llvm::COFF::IMAGE_COMDAT_SELECT_NODUPLICATES, llvm::COFF::IMAGE_COMDAT_SELECT_SAME_SIZE, llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA, llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA, llvm::COFF::IMAGE_SCN_LNK_COMDAT, llvm::COFF::IMAGE_SCN_LNK_INFO, llvm::COFF::IMAGE_SCN_LNK_REMOVE, llvm::COFF::IMAGE_SCN_MEM_DISCARDABLE, llvm::COFF::IMAGE_SCN_MEM_EXECUTE, llvm::COFF::IMAGE_SCN_MEM_READ, llvm::COFF::IMAGE_SCN_MEM_SHARED, llvm::COFF::IMAGE_SCN_MEM_WRITE, isImplicitlyDiscardable(), OS, llvm::MCSymbol::print(), and shouldOmitSectionDirective().

◆ setSelection()

void MCSectionCOFF::setSelection ( int  Selection) const

Definition at line 31 of file MCSectionCOFF.cpp.

References assert(), llvm::COFF::IMAGE_SCN_LNK_COMDAT, and Selection.

◆ shouldOmitSectionDirective()

bool MCSectionCOFF::shouldOmitSectionDirective ( StringRef  Name,
const MCAsmInfo &  MAI 
) const

Decides whether a '.section' directive should be printed before the section name.

Definition at line 19 of file MCSectionCOFF.cpp.

References llvm::MCSection::Name.

Referenced by printSwitchToSection().

◆ useCodeAlign()

bool MCSectionCOFF::useCodeAlign ( ) const
overridevirtual

Return true if a .align directive should use "optimized nops" to fill instead of 0s.

Implements llvm::MCSection.

Definition at line 109 of file MCSectionCOFF.cpp.

References llvm::MCSection::getKind(), and llvm::SectionKind::isText().

Friends And Related Function Documentation

◆ MCContext

friend class MCContext
friend

Definition at line 50 of file MCSectionCOFF.h.

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