DWP.cpp File Reference

#include "llvm/DWP/DWP.h"
#include "llvm/DWP/DWPError.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCTargetOptionsCommandFlags.h"
#include "llvm/Object/Decompressor.h"
#include "llvm/Object/ELFObjectFile.h"
#include "llvm/Support/MemoryBuffer.h"
#include <limits>

Include dependency graph for DWP.cpp:

Go to the source code of this file.

Namespaces
	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Functions
static uint64_t	debugStrOffsetsHeaderSize (DataExtractor StrOffsetsData, uint16_t DwarfVersion)
static uint64_t	getCUAbbrev (StringRef Abbrev, uint64_t AbbrCode)
static Expected< const char * >	getIndexedString (dwarf::Form Form, DataExtractor InfoData, uint64_t &InfoOffset, StringRef StrOffsets, StringRef Str, uint16_t Version)
static Expected< CompileUnitIdentifiers >	getCUIdentifiers (InfoSectionUnitHeader &Header, StringRef Abbrev, StringRef Info, StringRef StrOffsets, StringRef Str)
static bool	isSupportedSectionKind (DWARFSectionKind Kind)
unsigned	llvm::getContributionIndex (DWARFSectionKind Kind, uint32_t IndexVersion)
static unsigned	getOnDiskSectionId (unsigned Index)
static StringRef	getSubsection (StringRef Section, const DWARFUnitIndex::Entry &Entry, DWARFSectionKind Kind)
static void	addAllTypesFromDWP (MCStreamer &Out, MapVector< uint64_t, UnitIndexEntry > &TypeIndexEntries, const DWARFUnitIndex &TUIndex, MCSection *OutputTypes, StringRef Types, const UnitIndexEntry &TUEntry, uint32_t &TypesOffset, unsigned TypesContributionIndex)
static void	addAllTypesFromTypesSection (MCStreamer &Out, MapVector< uint64_t, UnitIndexEntry > &TypeIndexEntries, MCSection *OutputTypes, const std::vector< StringRef > &TypesSections, const UnitIndexEntry &CUEntry, uint32_t &TypesOffset)
static std::string	buildDWODescription (StringRef Name, StringRef DWPName, StringRef DWOName)
static Error	createError (StringRef Name, Error E)
static Error	handleCompressedSection (std::deque< SmallString< 32 >> &UncompressedSections, SectionRef Sec, StringRef Name, StringRef &Contents)
Expected< InfoSectionUnitHeader >	llvm::parseInfoSectionUnitHeader (StringRef Info)
void	llvm::writeStringsAndOffsets (MCStreamer &Out, DWPStringPool &Strings, MCSection *StrOffsetSection, StringRef CurStrSection, StringRef CurStrOffsetSection, uint16_t Version)
void	llvm::writeIndexTable (MCStreamer &Out, ArrayRef< unsigned > ContributionOffsets, const MapVector< uint64_t, UnitIndexEntry > &IndexEntries, uint32_t DWARFUnitIndex::Entry::SectionContribution::*Field)
void	llvm::writeIndex (MCStreamer &Out, MCSection *Section, ArrayRef< unsigned > ContributionOffsets, const MapVector< uint64_t, UnitIndexEntry > &IndexEntries, uint32_t IndexVersion)
Error	llvm::buildDuplicateError (const std::pair< uint64_t, UnitIndexEntry > &PrevE, const CompileUnitIdentifiers &ID, StringRef DWPName)
Error	llvm::handleSection (const StringMap< std::pair< MCSection *, DWARFSectionKind >> &KnownSections, const MCSection *StrSection, const MCSection *StrOffsetSection, const MCSection *TypesSection, const MCSection *CUIndexSection, const MCSection *TUIndexSection, const MCSection *InfoSection, const object::SectionRef &Section, MCStreamer &Out, std::deque< SmallString< 32 >> &UncompressedSections, uint32_t(&ContributionOffsets)[8], UnitIndexEntry &CurEntry, StringRef &CurStrSection, StringRef &CurStrOffsetSection, std::vector< StringRef > &CurTypesSection, std::vector< StringRef > &CurInfoSection, StringRef &AbbrevSection, StringRef &CurCUIndexSection, StringRef &CurTUIndexSection, std::vector< std::pair< DWARFSectionKind, uint32_t >> &SectionLength)
Error	llvm::write (MCStreamer &Out, ArrayRef< std::string > Inputs)

Variables
static mc::RegisterMCTargetOptionsFlags	MCTargetOptionsFlags

Function Documentation

addAllTypesFromDWP()

static void addAllTypesFromDWP ( MCStreamer &  Out, MapVector< uint64_t, UnitIndexEntry > &  TypeIndexEntries, const DWARFUnitIndex &  TUIndex, MCSection *  OutputTypes, StringRef  Types, const UnitIndexEntry &  TUEntry, uint32_t &  TypesOffset, unsigned  TypesContributionIndex  )

static

Definition at line 182 of file DWP.cpp.

References E, llvm::DWARFUnitIndex::getRows(), I, llvm::MapVector< KeyT, ValueT, MapType, VectorType >::insert(), P, and llvm::MCStreamer::switchSection().

addAllTypesFromTypesSection()

static void addAllTypesFromTypesSection ( MCStreamer &  Out, MapVector< uint64_t, UnitIndexEntry > &  TypeIndexEntries, MCSection *  OutputTypes, const std::vector< StringRef > &  TypesSections, const UnitIndexEntry &  CUEntry, uint32_t &  TypesOffset  )

static

Definition at line 216 of file DWP.cpp.

References llvm::Data, and llvm::MCStreamer::switchSection().

buildDWODescription()

static std::string buildDWODescription ( StringRef  Name, StringRef  DWPName, StringRef  DWOName  )

static

Definition at line 250 of file DWP.cpp.

References llvm::StringRef::empty().

Referenced by llvm::buildDuplicateError().

createError()

static Error createError ( StringRef  Name, Error  E  )

static

Definition at line 276 of file DWP.cpp.

References E, move, and llvm::toString().

debugStrOffsetsHeaderSize()

static uint64_t debugStrOffsetsHeaderSize ( DataExtractor  StrOffsetsData, uint16_t  DwarfVersion  )

static

Definition at line 29 of file DWP.cpp.

References llvm::dwarf::DW_LENGTH_DWARF64, and llvm::DataExtractor::getU32().

Referenced by getIndexedString().

getCUAbbrev()

static uint64_t getCUAbbrev ( StringRef  Abbrev, uint64_t  AbbrCode  )

static

Definition at line 40 of file DWP.cpp.

References llvm::DataExtractor::getU8(), and llvm::DataExtractor::getULEB128().

Referenced by getCUIdentifiers().

getCUIdentifiers()

static Expected<CompileUnitIdentifiers> getCUIdentifiers ( InfoSectionUnitHeader &  Header, StringRef  Abbrev, StringRef  Info, StringRef  StrOffsets, StringRef  Str  )

static

Definition at line 94 of file DWP.cpp.

References getCUAbbrev(), getIndexedString(), llvm::DataExtractor::getU64(), llvm::DataExtractor::getU8(), llvm::DataExtractor::getULEB128(), Info, llvm::DWARFFormValue::skipValue(), and llvm::Expected< T >::takeError().

getIndexedString()

static Expected<const char *> getIndexedString ( dwarf::Form  Form, DataExtractor  InfoData, uint64_t &  InfoOffset, StringRef  StrOffsets, StringRef  Str, uint16_t  Version  )

static

Definition at line 56 of file DWP.cpp.

References debugStrOffsetsHeaderSize(), llvm::DataExtractor::getCStr(), llvm::DataExtractor::getU16(), llvm::DataExtractor::getU24(), llvm::DataExtractor::getU32(), llvm::DataExtractor::getU8(), llvm::DataExtractor::getULEB128(), and llvm::IndexedInstrProf::Version.

Referenced by getCUIdentifiers().

getOnDiskSectionId()

static unsigned getOnDiskSectionId ( unsigned  Index )

static

Definition at line 168 of file DWP.cpp.

Referenced by llvm::writeIndex().

getSubsection()

static StringRef getSubsection ( StringRef  Section, const DWARFUnitIndex::Entry &  Entry, DWARFSectionKind  Kind  )

static

Definition at line 172 of file DWP.cpp.

handleCompressedSection()

static Error handleCompressedSection ( std::deque< SmallString< 32 >> &  UncompressedSections, SectionRef  Sec, StringRef  Name, StringRef &  Contents  )

static

Definition at line 284 of file DWP.cpp.

References llvm::StringRef::back(), llvm::object::Decompressor::create(), llvm::object::createError(), E, getFlags(), llvm::object::SectionRef::getObject(), move, llvm::ELF::SHF_COMPRESSED, llvm::Error::success(), and llvm::Expected< T >::takeError().

isSupportedSectionKind()

static bool isSupportedSectionKind ( DWARFSectionKind  Kind )

static

Definition at line 153 of file DWP.cpp.

References llvm::DW_SECT_EXT_unknown.

Variable Documentation

MCTargetOptionsFlags

mc::RegisterMCTargetOptionsFlags MCTargetOptionsFlags

static

Definition at line 26 of file DWP.cpp.