DWP.cpp File Reference

#include "llvm/DWP/DWP.h"
#include "llvm/ADT/Twine.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/CommandLine.h"
#include "llvm/Support/MemoryBuffer.h"
#include <limits>

Go to the source code of this file.

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

Enumerations
enum	llvm::AccessField { llvm::Offset , llvm::Length }

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 Error	sectionOverflowErrorOrWarning (uint32_t PrevOffset, uint32_t OverflowedOffset, StringRef SectionName, OnCuIndexOverflow OverflowOptValue, bool &AnySectionOverflow)
static Error	addAllTypesFromDWP (MCStreamer &Out, MapVector< uint64_t, UnitIndexEntry > &TypeIndexEntries, const DWARFUnitIndex &TUIndex, MCSection *OutputTypes, StringRef Types, const UnitIndexEntry &TUEntry, uint32_t &TypesOffset, unsigned TypesContributionIndex, OnCuIndexOverflow OverflowOptValue, bool &AnySectionOverflow)
static Error	addAllTypesFromTypesSection (MCStreamer &Out, MapVector< uint64_t, UnitIndexEntry > &TypeIndexEntries, MCSection *OutputTypes, const std::vector< StringRef > &TypesSections, const UnitIndexEntry &CUEntry, uint32_t &TypesOffset, OnCuIndexOverflow OverflowOptValue, bool &AnySectionOverflow)
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)
static void	llvm::writeNewOffsetsTo (MCStreamer &Out, DataExtractor &Data, DenseMap< uint64_t, uint32_t > &OffsetRemapping, uint64_t &Offset, uint64_t &Size)
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, const AccessField &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, OnCuIndexOverflow OverflowOptValue)

Variables
static mc::RegisterMCTargetOptionsFlags	MCTargetOptionsFlags

Function Documentation

addAllTypesFromDWP()

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

static

Definition at line 205 of file DWP.cpp.

References llvm::CallingConv::C, llvm::UnitIndexEntry::Contributions, llvm::MCStreamer::emitBytes(), llvm::DWARFUnitIndex::getColumnKinds(), llvm::getContributionIndex(), llvm::DWARFUnitIndex::Entry::SectionContribution::getOffset(), llvm::DWARFUnitIndex::getRows(), llvm::DWARFUnitIndex::getVersion(), I, llvm::MapVector< KeyT, ValueT, MapType, VectorType >::insert(), isSupportedSectionKind(), P, sectionOverflowErrorOrWarning(), llvm::Error::success(), and llvm::MCStreamer::switchSection().

Referenced by llvm::write().

addAllTypesFromTypesSection()

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

static

Definition at line 254 of file DWP.cpp.

References llvm::CallingConv::C, llvm::DW_SECT_EXT_TYPES, llvm::MCStreamer::emitBytes(), llvm::getContributionIndex(), llvm::MapVector< KeyT, ValueT, MapType, VectorType >::insert(), llvm::Offset, P, sectionOverflowErrorOrWarning(), llvm::Error::success(), and llvm::MCStreamer::switchSection().

Referenced by llvm::write().

buildDWODescription()

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

static

Definition at line 301 of file DWP.cpp.

References llvm::StringRef::empty(), and Name.

Referenced by llvm::buildDuplicateError().

createError()

static Error createError ( StringRef  Name, Error  E  )

static

Definition at line 327 of file DWP.cpp.

References Name, and llvm::dwarf::toString().

Referenced by handleCompressedSection().

debugStrOffsetsHeaderSize()

static uint64_t debugStrOffsetsHeaderSize ( DataExtractor  StrOffsetsData, uint16_t  DwarfVersion  )

static

Definition at line 31 of file DWP.cpp.

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

Referenced by getIndexedString(), and llvm::writeStringsAndOffsets().

getCUAbbrev()

static uint64_t getCUAbbrev ( StringRef  Abbrev, uint64_t  AbbrCode  )

static

Definition at line 42 of file DWP.cpp.

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

Referenced by getCUIdentifiers().

getCUIdentifiers()

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

static

Definition at line 96 of file DWP.cpp.

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

Referenced by llvm::write().

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 58 of file DWP.cpp.

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

Referenced by getCUIdentifiers().

getOnDiskSectionId()

static unsigned getOnDiskSectionId ( unsigned  Index )

static

Definition at line 170 of file DWP.cpp.

Referenced by llvm::writeIndex().

getSubsection()

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

static

Definition at line 174 of file DWP.cpp.

Referenced by llvm::write().

handleCompressedSection()

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

static

Definition at line 335 of file DWP.cpp.

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

Referenced by llvm::handleSection().

isSupportedSectionKind()

static bool isSupportedSectionKind ( DWARFSectionKind  Kind )

static

Definition at line 155 of file DWP.cpp.

References llvm::DW_SECT_EXT_unknown.

Referenced by addAllTypesFromDWP(), and llvm::write().

sectionOverflowErrorOrWarning()

static Error sectionOverflowErrorOrWarning ( uint32_t  PrevOffset, uint32_t  OverflowedOffset, StringRef  SectionName, OnCuIndexOverflow  OverflowOptValue, bool &  AnySectionOverflow  )

static

Definition at line 183 of file DWP.cpp.

References llvm::WithColor::defaultWarningHandler(), and llvm::Error::success().

Referenced by addAllTypesFromDWP(), addAllTypesFromTypesSection(), and llvm::write().

Variable Documentation

MCTargetOptionsFlags

mc::RegisterMCTargetOptionsFlags MCTargetOptionsFlags

static

Definition at line 28 of file DWP.cpp.