llvm::DWARFVerifier Class Reference

A class that verifies DWARF debug information given a DWARF Context. More...

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

Classes
struct	DieRangeInfo
	A class that keeps the address range information for a single DIE. More...

Public Member Functions
	DWARFVerifier (raw_ostream &S, DWARFContext &D, DIDumpOptions DumpOpts=DIDumpOptions::getForSingleDIE())
bool	handleDebugAbbrev ()
	Verify the information in any of the following sections, if available: .debug_abbrev, debug_abbrev.dwo.
bool	handleDebugInfo ()
	Verify the information in the .debug_info and .debug_types sections.
bool	handleDebugCUIndex ()
	Verify the information in the .debug_cu_index section.
bool	handleDebugTUIndex ()
	Verify the information in the .debug_tu_index section.
bool	handleDebugLine ()
	Verify the information in the .debug_line section.
bool	handleAccelTables ()
	Verify the information in accelerator tables, if they exist.
bool	handleDebugStrOffsets ()
	Verify the information in the .debug_str_offsets[.dwo].
bool	verifyDebugStrOffsets (std::optional< dwarf::DwarfFormat > LegacyFormat, StringRef SectionName, const DWARFSection &Section, StringRef StrData)
void	summarize ()
	Emits any aggregate information collected, depending on the dump options.

Detailed Description

A class that verifies DWARF debug information given a DWARF Context.

Definition at line 48 of file DWARFVerifier.h.

Constructor & Destructor Documentation

DWARFVerifier()

DWARFVerifier::DWARFVerifier	(	raw_ostream &	S,
		DWARFContext &	D,
		DIDumpOptions	DumpOpts = DIDumpOptions::getForSingleDIE()
	)

Definition at line 1090 of file DWARFVerifier.cpp.

References F, llvm::DWARFContext::getDWARFObj(), llvm::DWARFObject::getFile(), llvm::OutputCategoryAggregator::ShowDetail(), and llvm::DIDumpOptions::Verbose.

Member Function Documentation

handleAccelTables()

bool DWARFVerifier::handleAccelTables

(

)

Verify the information in accelerator tables, if they exist.

Any errors are reported to the stream that was this object was constructed with.

Returns

true if the existing Apple-style accelerator tables verify successfully, false otherwise.

Definition at line 2013 of file DWARFVerifier.cpp.

References D, llvm::DWARFContext::getDWARFObj(), and llvm::DWARFContext::isLittleEndian().

Referenced by llvm::DWARFContext::verify().

handleDebugAbbrev()

bool DWARFVerifier::handleDebugAbbrev

(

)

Verify the information in any of the following sections, if available: .debug_abbrev, debug_abbrev.dwo.

Any errors are reported to the stream that was this object was constructed with.

Returns

true if .debug_abbrev and .debug_abbrev.dwo verify successfully, false otherwise.

Definition at line 403 of file DWARFVerifier.cpp.

References llvm::StringRef::empty(), llvm::DWARFObject::getAbbrevDWOSection(), llvm::DWARFObject::getAbbrevSection(), llvm::DWARFContext::getDebugAbbrev(), llvm::DWARFContext::getDebugAbbrevDWO(), llvm::DWARFContext::getDWARFObj(), and OS.

Referenced by llvm::DWARFContext::verify().

handleDebugCUIndex()

bool DWARFVerifier::handleDebugCUIndex

(

)

Verify the information in the .debug_cu_index section.

Any errors are reported to the stream that was this object was constructed with.

Returns

true if the .debug_cu_index verifies successfully, false otherwise.

Definition at line 527 of file DWARFVerifier.cpp.

References llvm::DWARFObject::getCUIndexSection(), and llvm::DWARFContext::getDWARFObj().

Referenced by llvm::DWARFContext::verify().

handleDebugInfo()

bool DWARFVerifier::handleDebugInfo

(

)

Verify the information in the .debug_info and .debug_types sections.

Any errors are reported to the stream that this object was constructed with.

Returns

true if all sections verify successfully, false otherwise.

Definition at line 537 of file DWARFVerifier.cpp.

References llvm::DWARFObject::forEachInfoSections(), llvm::DWARFObject::forEachTypesSections(), llvm::DWARFContext::getDWARFObj(), llvm::DWARFContext::getDWOUnitsVector(), llvm::DWARFContext::getNormalUnitsVector(), and OS.

Referenced by llvm::DWARFContext::verify().

handleDebugLine()

bool DWARFVerifier::handleDebugLine

(

)

Verify the information in the .debug_line section.

Any errors are reported to the stream that was this object was constructed with.

Returns

true if the .debug_line verifies successfully, false otherwise.

Definition at line 1102 of file DWARFVerifier.cpp.

References OS.

Referenced by llvm::DWARFContext::verify().

handleDebugStrOffsets()

bool DWARFVerifier::handleDebugStrOffsets

(

)

Verify the information in the .debug_str_offsets[.dwo].

Any errors are reported to the stream that was this object was constructed with.

Returns

true if the .debug_line verifies successfully, false otherwise.

Definition at line 2035 of file DWARFVerifier.cpp.

References llvm::DWARFObject::forEachInfoDWOSections(), llvm::DWARFContext::getDWARFObj(), llvm::DWARFDataExtractor::getInitialLength(), llvm::DWARFObject::getStrDWOSection(), llvm::DWARFObject::getStrOffsetsDWOSection(), llvm::DWARFObject::getStrOffsetsSection(), llvm::DWARFObject::getStrSection(), llvm::DataExtractor::getU16(), llvm::DWARFContext::isLittleEndian(), llvm::Offset, Success, and verifyDebugStrOffsets().

Referenced by llvm::DWARFContext::verify().

handleDebugTUIndex()

bool DWARFVerifier::handleDebugTUIndex

(

)

Verify the information in the .debug_tu_index section.

Any errors are reported to the stream that was this object was constructed with.

Returns

true if the .debug_tu_index verifies successfully, false otherwise.

Definition at line 532 of file DWARFVerifier.cpp.

References llvm::DW_SECT_EXT_TYPES, llvm::DWARFContext::getDWARFObj(), and llvm::DWARFObject::getTUIndexSection().

Referenced by llvm::DWARFContext::verify().

summarize()

void DWARFVerifier::summarize

(

)

Emits any aggregate information collected, depending on the dump options.

Definition at line 2184 of file DWARFVerifier.cpp.

References llvm::count(), llvm::OutputCategoryAggregator::EnumerateResults(), llvm::OutputCategoryAggregator::GetNumCategories(), llvm::DIDumpOptions::JsonErrSummaryFile, llvm::sys::fs::OF_Text, llvm::DIDumpOptions::ShowAggregateErrors, and llvm::json::Object::try_emplace().

Referenced by llvm::DWARFContext::verify().

verifyDebugStrOffsets()

bool DWARFVerifier::verifyDebugStrOffsets	(	std::optional< dwarf::DwarfFormat >	LegacyFormat,
		StringRef	SectionName,
		const DWARFSection &	Section,
		StringRef	StrData
	)

Definition at line 2065 of file DWARFVerifier.cpp.

References llvm::CallingConv::C, llvm::Format, llvm::formatv(), llvm::DWARFContext::getDWARFObj(), llvm::dwarf::getDwarfOffsetByteSize(), llvm::DWARFContext::isLittleEndian(), llvm::Length, llvm::OutputCategoryAggregator::Report(), llvm::StringRef::size(), Success, llvm::toString(), and llvm::Version.

Referenced by handleDebugStrOffsets().

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

• include/llvm/DebugInfo/DWARF/DWARFVerifier.h
• lib/DebugInfo/DWARF/DWARFVerifier.cpp