Loader::ElfObject Class Reference

#include <elf_object.hh>

Inheritance diagram for Loader::ElfObject:

Public Member Functions
	ElfObject (ImageFileDataPtr ifd)
	~ElfObject ()
MemoryImage	buildImage () const override
ObjectFile *	getInterpreter () const override
std::string	getInterpPath (const GElf_Phdr &phdr) const
Addr	bias () const override
bool	relocatable () const override
Addr	mapSize () const override
void	updateBias (Addr bias_addr) override
bool	hasTLS () override
Addr	programHeaderTable ()
uint16_t	programHeaderSize ()
uint16_t	programHeaderCount ()
Public Member Functions inherited from Loader::ObjectFile
virtual	~ObjectFile ()
Arch	getArch () const
OpSys	getOpSys () const
const SymbolTable &	symtab () const
Addr	entryPoint () const

Protected Member Functions
void	determineArch ()
void	determineOpSys ()
void	handleLoadableSegment (GElf_Phdr phdr, int seg_num)
bool	loadSomeSymbols (SymbolTable *symtab, int binding, Addr mask, Addr base, Addr offset)
	Helper functions for loadGlobalSymbols() and loadLocalSymbols(). More...
void	getSections ()
bool	sectionExists (std::string sec)
Protected Member Functions inherited from Loader::ObjectFile
	ObjectFile (ImageFileDataPtr ifd)
Protected Member Functions inherited from Loader::ImageFile
	ImageFile (ImageFileDataPtr data)
virtual	~ImageFile ()

Protected Attributes
Elf *	elf
GElf_Ehdr	ehdr
Addr	_programHeaderTable = 0
uint16_t	_programHeaderSize = 0
uint16_t	_programHeaderCount = 0
std::set< std::string >	sectionNames
ElfObject *	interpreter = nullptr
Addr	ldBias = 0
bool	relocate = true
Addr	ldMin = MaxAddr
Addr	ldMax = MaxAddr
MemoryImage	image
Protected Attributes inherited from Loader::ObjectFile
Arch	arch = UnknownArch
OpSys	opSys = UnknownOpSys
SymbolTable	_symtab
Addr	entry = 0
Protected Attributes inherited from Loader::ImageFile
ImageFileDataPtr	imageData

Detailed Description

Definition at line 59 of file elf_object.hh.

Constructor & Destructor Documentation

ElfObject()

Loader::ElfObject::ElfObject

(

ImageFileDataPtr

ifd

)

Definition at line 105 of file elf_object.cc.

References _programHeaderCount, _programHeaderSize, Loader::ObjectFile::_symtab, Loader::Symbol::address, Loader::Symbol::binding, X86ISA::count, Loader::createObjectFile(), data, determineArch(), determineOpSys(), DPRINTF, DPRINTFR, ehdr, elf, Loader::ObjectFile::entry, getInterpPath(), Loader::Symbol::Global, handleLoadableSegment(), ArmISA::i, image, Loader::ImageFile::imageData, Loader::SymbolTable::insert(), interpreter, Loader::Symbol::Local, Loader::Symbol::name, panic, X86ISA::seg, Loader::MemoryImage::segments(), Loader::ObjectFile::symtab(), warn_if, and Loader::Symbol::Weak.

~ElfObject()

Loader::ElfObject::~ElfObject

(

)

Definition at line 354 of file elf_object.cc.

References elf.

Member Function Documentation

bias()

Addr Loader::ElfObject::bias ( ) const

inlineoverridevirtual

Reimplemented from Loader::ObjectFile.

Definition at line 112 of file elf_object.hh.

References ldBias.

buildImage()

MemoryImage Loader::ElfObject::buildImage ( ) const

inlineoverridevirtual

Implements Loader::ImageFile.

Definition at line 107 of file elf_object.hh.

References image.

determineArch()

void Loader::ElfObject::determineArch ( )

protected

Definition at line 217 of file elf_object.cc.

References Loader::ObjectFile::arch, Loader::Arm, Loader::Arm64, bits(), ehdr, fatal, Loader::I386, Loader::Mips, Loader::Power, Loader::Riscv32, Loader::Riscv64, Loader::SPARC32, Loader::SPARC64, Loader::Thumb, warn, and Loader::X86_64.

Referenced by ElfObject().

determineOpSys()

void Loader::ElfObject::determineOpSys ( )

protected

Definition at line 264 of file elf_object.cc.

References ehdr, elf, fatal, Loader::FreeBSD, htobe(), htole(), Loader::Linux, Loader::LinuxArmOABI, Loader::ObjectFile::opSys, Loader::Solaris, Loader::Tru64, and Loader::UnknownOpSys.

Referenced by ElfObject().

getInterpPath()

std::string Loader::ElfObject::getInterpPath

(

const GElf_Phdr &

phdr

)

const

Definition at line 206 of file elf_object.cc.

References Loader::ImageFile::imageData.

Referenced by ElfObject().

getInterpreter()

ObjectFile* Loader::ElfObject::getInterpreter ( ) const

inlineoverridevirtual

Reimplemented from Loader::ObjectFile.

Definition at line 109 of file elf_object.hh.

References interpreter.

getSections()

void Loader::ElfObject::getSections ( )

protected

Definition at line 360 of file elf_object.cc.

References ehdr, elf, Loader::ImageFile::imageData, panic, and sectionNames.

Referenced by sectionExists().

handleLoadableSegment()

void Loader::ElfObject::handleLoadableSegment ( GElf_Phdr  phdr, int  seg_num  )

protected

Definition at line 327 of file elf_object.cc.

References _programHeaderTable, Loader::MemoryImage::addSegment(), ehdr, image, Loader::ImageFile::imageData, name(), and sc_dt::to_string().

Referenced by ElfObject().

hasTLS()

bool Loader::ElfObject::hasTLS ( )

inlineoverridevirtual

Reimplemented from Loader::ObjectFile.

Definition at line 117 of file elf_object.hh.

References sectionExists().

loadSomeSymbols()

bool Loader::ElfObject::loadSomeSymbols ( SymbolTable *  symtab, int  binding, Addr  mask, Addr  base, Addr  offset  )

protected

Helper functions for loadGlobalSymbols() and loadLocalSymbols().

mapSize()

Addr Loader::ElfObject::mapSize ( ) const

inlineoverridevirtual

Reimplemented from Loader::ObjectFile.

Definition at line 114 of file elf_object.hh.

References ldMax, and ldMin.

programHeaderCount()

uint16_t Loader::ElfObject::programHeaderCount ( )

inline

Definition at line 121 of file elf_object.hh.

References _programHeaderCount.

programHeaderSize()

uint16_t Loader::ElfObject::programHeaderSize ( )

inline

Definition at line 120 of file elf_object.hh.

References _programHeaderSize.

programHeaderTable()

Addr Loader::ElfObject::programHeaderTable ( )

inline

Definition at line 119 of file elf_object.hh.

References _programHeaderTable.

relocatable()

bool Loader::ElfObject::relocatable ( ) const

inlineoverridevirtual

Reimplemented from Loader::ObjectFile.

Definition at line 113 of file elf_object.hh.

References relocate.

sectionExists()

bool Loader::ElfObject::sectionExists ( std::string  sec )

protected

Definition at line 396 of file elf_object.cc.

References getSections(), and sectionNames.

Referenced by hasTLS().

updateBias()

void Loader::ElfObject::updateBias ( Addr  bias_addr )

overridevirtual

Reimplemented from Loader::ObjectFile.

Definition at line 406 of file elf_object.cc.

References Loader::ObjectFile::entry, image, ldBias, and Loader::MemoryImage::offset().

Member Data Documentation

_programHeaderCount

uint16_t Loader::ElfObject::_programHeaderCount = 0

protected

Definition at line 73 of file elf_object.hh.

Referenced by ElfObject(), and programHeaderCount().

_programHeaderSize

uint16_t Loader::ElfObject::_programHeaderSize = 0

protected

Definition at line 72 of file elf_object.hh.

Referenced by ElfObject(), and programHeaderSize().

_programHeaderTable

Addr Loader::ElfObject::_programHeaderTable = 0

protected

Definition at line 71 of file elf_object.hh.

Referenced by handleLoadableSegment(), and programHeaderTable().

ehdr

GElf_Ehdr Loader::ElfObject::ehdr

protected

Definition at line 63 of file elf_object.hh.

Referenced by determineArch(), determineOpSys(), ElfObject(), getSections(), and handleLoadableSegment().

elf

Elf* Loader::ElfObject::elf

protected

Definition at line 62 of file elf_object.hh.

Referenced by determineOpSys(), ElfObject(), getSections(), and ~ElfObject().

image

MemoryImage Loader::ElfObject::image

protected

Definition at line 101 of file elf_object.hh.

Referenced by buildImage(), ElfObject(), handleLoadableSegment(), and updateBias().

interpreter

ElfObject* Loader::ElfObject::interpreter = nullptr

protected

Definition at line 76 of file elf_object.hh.

Referenced by ElfObject(), and getInterpreter().

ldBias

Addr Loader::ElfObject::ldBias = 0

protected

Definition at line 81 of file elf_object.hh.

Referenced by bias(), and updateBias().

ldMax

Addr Loader::ElfObject::ldMax = MaxAddr

protected

Definition at line 92 of file elf_object.hh.

Referenced by mapSize().

ldMin

Addr Loader::ElfObject::ldMin = MaxAddr

protected

Definition at line 91 of file elf_object.hh.

Referenced by mapSize().

relocate

bool Loader::ElfObject::relocate = true

protected

Definition at line 87 of file elf_object.hh.

Referenced by relocatable().

sectionNames

std::set<std::string> Loader::ElfObject::sectionNames

protected

Definition at line 74 of file elf_object.hh.

Referenced by getSections(), and sectionExists().

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

• base/loader/elf_object.hh
• base/loader/elf_object.cc