ELFEmitter.cpp File Reference

The ELF component of yaml2obj. More...

#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/StringSet.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/MC/StringTableBuilder.h"
#include "llvm/Object/ELFObjectFile.h"
#include "llvm/Object/ELFTypes.h"
#include "llvm/ObjectYAML/DWARFEmitter.h"
#include "llvm/ObjectYAML/DWARFYAML.h"
#include "llvm/ObjectYAML/ELFYAML.h"
#include "llvm/ObjectYAML/yaml2obj.h"
#include "llvm/Support/EndianStream.h"
#include "llvm/Support/Errc.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/LEB128.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/WithColor.h"
#include "llvm/Support/YAMLTraits.h"
#include "llvm/Support/raw_ostream.h"
#include <optional>

Include dependency graph for ELFEmitter.cpp:

Go to the source code of this file.

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

Functions
template<class T >
static size_t	arrayDataSize (ArrayRef< T > A)
template<class T >
static void	writeArrayData (raw_ostream &OS, ArrayRef< T > A)
template<class T >
static void	zero (T &Obj)
template<class ELFT >
static void	overrideFields (ELFYAML::Section *From, typename ELFT::Shdr &To)
static uint64_t	writeContent (ContiguousBlobAccumulator &CBA, const std::optional< yaml::BinaryRef > &Content, const std::optional< llvm::yaml::Hex64 > &Size)
static StringRef	getDefaultLinkSec (unsigned SecType)
static size_t	findFirstNonGlobal (ArrayRef< ELFYAML::Symbol > Symbols)
static bool	shouldEmitDWARF (DWARFYAML::Data &DWARF, StringRef Name)
template<class ELFT >
Expected< uint64_t >	emitDWARF (typename ELFT::Shdr &SHeader, StringRef Name, const DWARFYAML::Data &DWARF, ContiguousBlobAccumulator &CBA)
static bool	isMips64EL (const ELFYAML::Object &Obj)
bool	llvm::yaml::yaml2elf (ELFYAML::Object &Doc, raw_ostream &Out, ErrorHandler EH, uint64_t MaxSize)

Variables
constexpr char	SuffixStart = '('
constexpr char	SuffixEnd = ')'

Detailed Description

The ELF component of yaml2obj.

Definition in file ELFEmitter.cpp.

Function Documentation

arrayDataSize()

template<class T >

static size_t arrayDataSize ( ArrayRef< T >  A )

static

Definition at line 328 of file ELFEmitter.cpp.

References A.

Referenced by writeArrayData().

emitDWARF()

template<class ELFT >

Expected< uint64_t > emitDWARF	(	typename ELFT::Shdr &	SHeader,
		StringRef	Name,
		const DWARFYAML::Data &	DWARF,
		ContiguousBlobAccumulator &	CBA
	)

Definition at line 1074 of file ELFEmitter.cpp.

References llvm::DWARFYAML::getDWARFEmitterByName(), Name, and OS.

findFirstNonGlobal()

static size_t findFirstNonGlobal ( ArrayRef< ELFYAML::Symbol >  Symbols )

static

Definition at line 929 of file ELFEmitter.cpp.

References I, and llvm::ELF::STB_LOCAL.

getDefaultLinkSec()

static StringRef getDefaultLinkSec ( unsigned  SecType )

static

Definition at line 734 of file ELFEmitter.cpp.

References llvm::ELF::SHT_DYNSYM, llvm::ELF::SHT_GNU_HASH, llvm::ELF::SHT_GNU_verdef, llvm::ELF::SHT_GNU_verneed, llvm::ELF::SHT_GNU_versym, llvm::ELF::SHT_GROUP, llvm::ELF::SHT_HASH, llvm::ELF::SHT_LLVM_ADDRSIG, llvm::ELF::SHT_LLVM_CALL_GRAPH_PROFILE, llvm::ELF::SHT_REL, llvm::ELF::SHT_RELA, and llvm::ELF::SHT_SYMTAB.

isMips64EL()

static bool isMips64EL ( const ELFYAML::Object &  Obj )

static

Definition at line 1260 of file ELFEmitter.cpp.

References llvm::ELFYAML::FileHeader::Class, llvm::ELFYAML::FileHeader::Data, llvm::ELF::ELFCLASS64, llvm::ELF::ELFDATA2LSB, llvm::ELF::EM_MIPS, llvm::ELFYAML::Object::getMachine(), and llvm::ELFYAML::Object::Header.

Referenced by llvm::object::ELFFile< ELFT >::getRelocationSymbol(), llvm::object::Elf_Rel_Impl< ELFType< TargetEndianness, false >, false >::getRInfo(), llvm::object::Elf_Rel_Impl< ELFType< TargetEndianness, true >, false >::getRInfo(), llvm::object::Elf_Rel_Impl< ELFType< TargetEndianness, false >, false >::getSymbol(), llvm::object::Elf_Rel_Impl< ELFType< TargetEndianness, true >, false >::getSymbol(), llvm::object::Elf_Rel_Impl< ELFType< TargetEndianness, false >, false >::getType(), and llvm::object::Elf_Rel_Impl< ELFType< TargetEndianness, true >, false >::getType().

overrideFields()

template<class ELFT >

static void overrideFields ( ELFYAML::Section *  From, typename ELFT::Shdr &  To  )

static

Definition at line 634 of file ELFEmitter.cpp.

References From.

shouldEmitDWARF()

static bool shouldEmitDWARF ( DWARFYAML::Data &  DWARF, StringRef  Name  )

static

Definition at line 1068 of file ELFEmitter.cpp.

References llvm::SetVector< T, Vector, Set >::count(), llvm::DWARFYAML::Data::getNonEmptySectionNames(), and Name.

writeArrayData()

template<class T >

static void writeArrayData ( raw_ostream &  OS, ArrayRef< T >  A  )

static

Definition at line 332 of file ELFEmitter.cpp.

References A, arrayDataSize(), OS, and llvm::raw_ostream::write().

writeContent()

static uint64_t writeContent ( ContiguousBlobAccumulator &  CBA, const std::optional< yaml::BinaryRef > &  Content, const std::optional< llvm::yaml::Hex64 > &  Size  )

static

Definition at line 718 of file ELFEmitter.cpp.

References Content, and Size.

zero()

template<class T >

static void zero ( T &  Obj )

static

Definition at line 336 of file ELFEmitter.cpp.

Referenced by llvm::BinaryOperator::CreateNeg(), llvm::BinaryOperator::CreateNSWNeg(), and llvm::BinaryOperator::CreateNUWNeg().

Variable Documentation

SuffixEnd

constexpr char SuffixEnd = ')'

constexpr

Definition at line 686 of file ELFEmitter.cpp.

Referenced by llvm::ELFYAML::appendUniqueSuffix(), llvm::ELFYAML::dropUniqueSuffix(), and parseRD().

SuffixStart

constexpr char SuffixStart = '('

constexpr

Definition at line 685 of file ELFEmitter.cpp.

Referenced by llvm::ELFYAML::appendUniqueSuffix(), and llvm::ELFYAML::dropUniqueSuffix().