LLVM 24.0.0git
Public Types | Public Member Functions | Protected Attributes | List of all members
llvm::dwarf::FrameEntry Class Referenceabstract

An entry in either debug_frame or eh_frame. More...

#include "llvm/DebugInfo/DWARF/DWARFDebugFrame.h"

Inheritance diagram for llvm::dwarf::FrameEntry:
[legend]

Public Types

enum  FrameKind { FK_CIE , FK_FDE }

Public Member Functions

 FrameEntry (FrameKind K, bool IsDWARF64, uint64_t Offset, uint64_t Length, uint64_t CodeAlign, int64_t DataAlign, Triple::ArchType Arch)
virtual ~FrameEntry ()=default
FrameKind getKind () const
uint64_t getOffset () const
uint64_t getLength () const
const CFIProgram & cfis () const
CFIProgram & cfis ()
std::optional< uint64_t > getUnparsedCFIStartOffset () const
 If using lazily parsed CFIs, this returns the section offset where the unparsed CFIs start so user can parse them on-demand through the CFIProgram parsing interface cfis().parse(Data, ..., getEndOffset()).
void markCFIProgramUnparsed (uint64_t StartOffset)
void markCFIProgramParsed ()
uint64_t getEndOffset () const
virtual void dump (raw_ostream &OS, DIDumpOptions DumpOpts) const =0
 Dump the instructions in this CFI fragment.

Protected Attributes

const FrameKind Kind
const bool IsDWARF64
const uint64_t Offset
 Offset of this entry in the section.
const uint64_t Length
 Entry length as specified in DWARF.
std::optional< uint64_t > UnparsedCFIStartOffset
 Offset for lazy parsing; std::nullopt if CFIs are already parsed.
CFIProgram CFIs

Detailed Description

An entry in either debug_frame or eh_frame.

This entry can be a CIE or an FDE.

Definition at line 59 of file DWARFDebugFrame.h.

Member Enumeration Documentation

◆ FrameKind

enum llvm::dwarf::FrameEntry::FrameKind
Enumerator
FK_CIE 
FK_FDE 

Definition at line 61 of file DWARFDebugFrame.h.

Constructor & Destructor Documentation

◆ FrameEntry()

llvm::dwarf::FrameEntry::FrameEntry ( FrameKind K,
bool IsDWARF64,
uint64_t Offset,
uint64_t Length,
uint64_t CodeAlign,
int64_t DataAlign,
Triple::ArchType Arch )
inline

Definition at line 63 of file DWARFDebugFrame.h.

References CFIs, IsDWARF64, Kind, Length, Offset, and uint64_t.

Referenced by llvm::dwarf::CIE::CIE(), llvm::dwarf::CIE::classof(), llvm::dwarf::FDE::classof(), and llvm::dwarf::FDE::FDE().

◆ ~FrameEntry()

virtual llvm::dwarf::FrameEntry::~FrameEntry ( )
virtualdefault

Member Function Documentation

◆ cfis() [1/2]

CFIProgram & llvm::dwarf::FrameEntry::cfis ( )
inline

Definition at line 74 of file DWARFDebugFrame.h.

References CFIs.

◆ cfis() [2/2]

const CFIProgram & llvm::dwarf::FrameEntry::cfis ( ) const
inline

Definition at line 73 of file DWARFDebugFrame.h.

References CFIs.

Referenced by llvm::dwarf::createUnwindTable(), and llvm::dwarf::createUnwindTable().

◆ dump()

virtual void llvm::dwarf::FrameEntry::dump ( raw_ostream & OS,
DIDumpOptions DumpOpts ) const
pure virtual

Dump the instructions in this CFI fragment.

Implemented in llvm::dwarf::CIE, and llvm::dwarf::FDE.

◆ getEndOffset()

uint64_t llvm::dwarf::FrameEntry::getEndOffset ( ) const
inline

Definition at line 87 of file DWARFDebugFrame.h.

References IsDWARF64, Length, Offset, and uint64_t.

◆ getKind()

FrameKind llvm::dwarf::FrameEntry::getKind ( ) const
inline

Definition at line 70 of file DWARFDebugFrame.h.

References Kind.

Referenced by llvm::dwarf::CIE::classof(), and llvm::dwarf::FDE::classof().

◆ getLength()

uint64_t llvm::dwarf::FrameEntry::getLength ( ) const
inline

Definition at line 72 of file DWARFDebugFrame.h.

References Length, and uint64_t.

◆ getOffset()

uint64_t llvm::dwarf::FrameEntry::getOffset ( ) const
inline

Definition at line 71 of file DWARFDebugFrame.h.

References Offset, and uint64_t.

Referenced by llvm::dwarf::createUnwindTable().

◆ getUnparsedCFIStartOffset()

std::optional< uint64_t > llvm::dwarf::FrameEntry::getUnparsedCFIStartOffset ( ) const
inline

If using lazily parsed CFIs, this returns the section offset where the unparsed CFIs start so user can parse them on-demand through the CFIProgram parsing interface cfis().parse(Data, ..., getEndOffset()).

This returns std::nullopt if CFIs are already succesfully parsed.

Definition at line 80 of file DWARFDebugFrame.h.

References UnparsedCFIStartOffset.

◆ markCFIProgramParsed()

void llvm::dwarf::FrameEntry::markCFIProgramParsed ( )
inline

Definition at line 86 of file DWARFDebugFrame.h.

References UnparsedCFIStartOffset.

◆ markCFIProgramUnparsed()

void llvm::dwarf::FrameEntry::markCFIProgramUnparsed ( uint64_t StartOffset)
inline

Definition at line 83 of file DWARFDebugFrame.h.

References uint64_t, and UnparsedCFIStartOffset.

Member Data Documentation

◆ CFIs

CFIProgram llvm::dwarf::FrameEntry::CFIs
protected

Definition at line 111 of file DWARFDebugFrame.h.

Referenced by cfis(), cfis(), llvm::dwarf::CIE::dump(), llvm::dwarf::FDE::dump(), and FrameEntry().

◆ IsDWARF64

const bool llvm::dwarf::FrameEntry::IsDWARF64
protected

Definition at line 100 of file DWARFDebugFrame.h.

Referenced by llvm::dwarf::CIE::CIE(), llvm::dwarf::CIE::dump(), llvm::dwarf::FDE::dump(), llvm::dwarf::FDE::FDE(), FrameEntry(), and getEndOffset().

◆ Kind

const FrameKind llvm::dwarf::FrameEntry::Kind
protected

Definition at line 98 of file DWARFDebugFrame.h.

Referenced by FrameEntry(), and getKind().

◆ Length

const uint64_t llvm::dwarf::FrameEntry::Length
protected

Entry length as specified in DWARF.

Definition at line 106 of file DWARFDebugFrame.h.

Referenced by llvm::dwarf::CIE::CIE(), llvm::dwarf::CIE::dump(), llvm::dwarf::FDE::dump(), llvm::dwarf::FDE::FDE(), FrameEntry(), getEndOffset(), and getLength().

◆ Offset

const uint64_t llvm::dwarf::FrameEntry::Offset
protected

Offset of this entry in the section.

Definition at line 103 of file DWARFDebugFrame.h.

Referenced by llvm::dwarf::CIE::CIE(), llvm::dwarf::CIE::dump(), llvm::dwarf::FDE::dump(), llvm::dwarf::FDE::FDE(), FrameEntry(), getEndOffset(), and getOffset().

◆ UnparsedCFIStartOffset

std::optional<uint64_t> llvm::dwarf::FrameEntry::UnparsedCFIStartOffset
protected

Offset for lazy parsing; std::nullopt if CFIs are already parsed.

Definition at line 109 of file DWARFDebugFrame.h.

Referenced by getUnparsedCFIStartOffset(), markCFIProgramParsed(), and markCFIProgramUnparsed().

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