CoverageMappingReader.cpp File Reference

#include "llvm/ProfileData/Coverage/CoverageMappingReader.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Object/Archive.h"
#include "llvm/Object/Binary.h"
#include "llvm/Object/COFF.h"
#include "llvm/Object/Error.h"
#include "llvm/Object/MachOUniversal.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/ProfileData/InstrProf.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Compression.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/LEB128.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TargetParser/Triple.h"
#include <vector>

Go to the source code of this file.

Classes
struct	FilenameRange
	A range of filename indices. More...

Macros
#define	DEBUG_TYPE   "coverage-mapping"

Functions
	STATISTIC (CovMapNumRecords, "The # of coverage function records")
	STATISTIC (CovMapNumUsedRecords, "The # of used coverage function records")
static Expected< bool >	isCoverageMappingDummy (uint64_t Hash, StringRef Mapping)
template<typename T , llvm::endianness Endian>
static Error	readCoverageMappingData (InstrProfSymtab &ProfileNames, StringRef CovMap, StringRef FuncRecords, std::vector< BinaryCoverageReader::ProfileMappingRecord > &Records, StringRef CompilationDir, std::vector< std::string > &Filenames)
static Expected< std::unique_ptr< BinaryCoverageReader > >	loadTestingFormat (StringRef Data, StringRef CompilationDir)
static Expected< std::vector< SectionRef > >	lookupSections (ObjectFile &OF, InstrProfSectKind IPSK)
	Find all sections that match IPSK name.
static Expected< std::unique_ptr< BinaryCoverageReader > >	loadBinaryFormat (std::unique_ptr< Binary > Bin, StringRef Arch, StringRef CompilationDir="", object::BuildIDRef *BinaryID=nullptr)
static bool	isArchSpecifierInvalidOrMissing (Binary *Bin, StringRef Arch)
	Determine whether Arch is invalid or empty, given Bin.

Variables
static const unsigned	EncodingExpansionRegionBit

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "coverage-mapping"

Definition at line 45 of file CoverageMappingReader.cpp.

Function Documentation

isArchSpecifierInvalidOrMissing()

static bool isArchSpecifierInvalidOrMissing ( Binary *  Bin, StringRef  Arch  )

static

Determine whether Arch is invalid or empty, given Bin.

Definition at line 1190 of file CoverageMappingReader.cpp.

References llvm::Bin.

Referenced by llvm::coverage::BinaryCoverageReader::create().

isCoverageMappingDummy()

static Expected< bool > isCoverageMappingDummy ( uint64_t  Hash, StringRef  Mapping  )

static

Definition at line 525 of file CoverageMappingReader.cpp.

References llvm::coverage::RawCoverageMappingDummyChecker::isDummy().

loadBinaryFormat()

static Expected< std::unique_ptr< BinaryCoverageReader > > loadBinaryFormat ( std::unique_ptr< Binary >  Bin, StringRef  Arch, StringRef  CompilationDir = "", object::BuildIDRef *  BinaryID = nullptr  )

static

Definition at line 1077 of file CoverageMappingReader.cpp.

References llvm::alignAddr(), llvm::alignTo(), assert(), llvm::big, llvm::Bin, llvm::consumeError(), llvm::InstrProfSymtab::create(), llvm::coverage::BinaryCoverageReader::createCoverageReaderFromBuffer(), llvm::StringRef::empty(), Endian, llvm::errorCodeToError(), llvm::object::getBuildID(), llvm::MemoryBuffer::getMemBuffer(), llvm::WritableMemoryBuffer::getNewUninitMemBuffer(), llvm::isAddrAligned(), llvm::little, lookupSections(), and llvm::coverage::malformed.

Referenced by llvm::coverage::BinaryCoverageReader::create().

loadTestingFormat()

static Expected< std::unique_ptr< BinaryCoverageReader > > loadTestingFormat ( StringRef  Data, StringRef  CompilationDir  )

static

Definition at line 934 of file CoverageMappingReader.cpp.

References llvm::Address, llvm::InstrProfSymtab::create(), llvm::coverage::BinaryCoverageReader::createCoverageReaderFromBuffer(), llvm::Data, llvm::decodeULEB128(), Endian, llvm::MemoryBuffer::getMemBuffer(), llvm::little, llvm::coverage::malformed, N, llvm::offsetToAlignedAddr(), llvm::coverage::TestingFormatMagic, llvm::coverage::truncated, llvm::coverage::unsupported_version, llvm::Version, llvm::coverage::Version1, llvm::coverage::Version2, and llvm::coverage::Version4.

Referenced by llvm::coverage::BinaryCoverageReader::create().

lookupSections()

static Expected< std::vector< SectionRef > > lookupSections ( ObjectFile &  OF, InstrProfSectKind  IPSK  )

static

Find all sections that match IPSK name.

There may be more than one if comdats are in use, e.g. for the __llvm_covfun section on ELF.

Definition at line 1045 of file CoverageMappingReader.cpp.

References llvm::getInstrProfSectionName(), llvm::object::Binary::getTripleObjectFormat(), N, Name, llvm::coverage::no_data_found, llvm::object::ObjectFile::sections(), and llvm::Expected< T >::takeError().

Referenced by loadBinaryFormat().

readCoverageMappingData()

template<typename T , llvm::endianness Endian>

static Error readCoverageMappingData ( InstrProfSymtab &  ProfileNames, StringRef  CovMap, StringRef  FuncRecords, std::vector< BinaryCoverageReader::ProfileMappingRecord > &  Records, StringRef  CompilationDir, std::vector< std::string > &  Filenames  )

static

Definition at line 852 of file CoverageMappingReader.cpp.

References llvm::coverage::CurrentVersion, llvm::StringRef::data(), Endian, llvm::Expected< T >::get(), llvm::StringRef::size(), llvm::Error::success(), llvm::Expected< T >::takeError(), llvm::coverage::unsupported_version, llvm::Version, and llvm::coverage::Version4.

STATISTIC() [1/2]

STATISTIC	(	CovMapNumRecords	,
		"The # of coverage function records"
	)

STATISTIC() [2/2]

STATISTIC	(	CovMapNumUsedRecords	,
		"The # of used coverage function records"
	)

Variable Documentation

EncodingExpansionRegionBit

const unsigned EncodingExpansionRegionBit

static

Initial value:

= 1
                                                   << Counter::EncodingTagBits

Definition at line 232 of file CoverageMappingReader.cpp.