#include <elf_object.hh>

Inheritance diagram for ElfObject:

Public Member Functions
	ElfObject (ImageFileDataPtr ifd)

	~ElfObject ()

MemoryImage	buildImage () const override

bool	loadAllSymbols (SymbolTable *symtab, Addr base=0, Addr offset=0, Addr addr_mask=MaxAddr) override

bool	loadGlobalSymbols (SymbolTable *symtab, Addr base=0, Addr offset=0, Addr addr_mask=MaxAddr) override

bool	loadLocalSymbols (SymbolTable *symtab, Addr base=0, Addr offset=0, Addr addr_mask=MaxAddr) override

bool	loadWeakSymbols (SymbolTable *symtab, Addr base=0, Addr offset=0, Addr addr_mask=MaxAddr) 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 ObjectFile
virtual	~ObjectFile ()

Arch	getArch () const

OpSys	getOpSys () 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 ObjectFile
	ObjectFile (ImageFileDataPtr ifd)

Protected Member Functions inherited from 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 ObjectFile
Arch	arch = UnknownArch

OpSys	opSys = UnknownOpSys

Addr	entry = 0

Protected Attributes inherited from ImageFile
ImageFileDataPtr	imageData

Additional Inherited Members
Public Types inherited from ObjectFile
enum	Arch { UnknownArch, Alpha, SPARC64, SPARC32, Mips, X86_64, I386, Arm64, Arm, Thumb, Power, Riscv64, Riscv32 }

enum	OpSys { UnknownOpSys, Tru64, Linux, Solaris, LinuxArmOABI, FreeBSD }

Detailed Description

Definition at line 58 of file elf_object.hh.

Constructor & Destructor Documentation

◆ ElfObject()

ElfObject::ElfObject ( ImageFileDataPtr ifd )

Definition at line 105 of file elf_object.cc.

References _programHeaderCount, _programHeaderSize, createObjectFile(), determineArch(), determineOpSys(), DPRINTFR, ehdr, elf, ObjectFile::entry, getInterpPath(), handleLoadableSegment(), ArmISA::i, image, ImageFile::imageData, interpreter, M5_VAR_USED, panic, X86ISA::seg, MemoryImage::segments(), and warn_if.

◆ ~ElfObject()

ElfObject::~ElfObject ( )

Definition at line 303 of file elf_object.cc.

References elf.

Member Function Documentation

◆ bias()

Addr ElfObject::bias ( ) const

inlineoverridevirtual

Reimplemented from ObjectFile.

Definition at line 121 of file elf_object.hh.

◆ buildImage()

MemoryImage ElfObject::buildImage ( ) const

inlineoverridevirtual

Implements ImageFile.

Definition at line 106 of file elf_object.hh.

References X86ISA::base, MaxAddr, and ArmISA::offset.

◆ determineArch()

void ElfObject::determineArch ( )

protected

Definition at line 161 of file elf_object.cc.

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

Referenced by ElfObject().

◆ determineOpSys()

void ElfObject::determineOpSys ( )

protected

Definition at line 213 of file elf_object.cc.

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

Referenced by ElfObject().

◆ getInterpPath()

std::string ElfObject::getInterpPath ( const GElf_Phdr & phdr ) const

Definition at line 150 of file elf_object.cc.

References ImageFile::imageData.

Referenced by ElfObject().

◆ getInterpreter()

ObjectFile* ElfObject::getInterpreter ( ) const

inlineoverridevirtual

Reimplemented from ObjectFile.

Definition at line 118 of file elf_object.hh.

◆ getSections()

void ElfObject::getSections ( )

protected

Definition at line 409 of file elf_object.cc.

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

Referenced by sectionExists().

◆ handleLoadableSegment()

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

protected

Definition at line 276 of file elf_object.cc.

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

Referenced by ElfObject().

◆ hasTLS()

bool ElfObject::hasTLS ( )

inlineoverridevirtual

Reimplemented from ObjectFile.

Definition at line 126 of file elf_object.hh.

◆ loadAllSymbols()

bool ElfObject::loadAllSymbols	(	SymbolTable *	symtab,
		Addr	base = `0`,
		Addr	offset = `0`,
		Addr	addr_mask = `MaxAddr`
	)

overridevirtual

Reimplemented from ObjectFile.

Definition at line 367 of file elf_object.cc.

References loadGlobalSymbols(), loadLocalSymbols(), and loadWeakSymbols().

◆ loadGlobalSymbols()

bool ElfObject::loadGlobalSymbols	(	SymbolTable *	symtab,
		Addr	base = `0`,
		Addr	offset = `0`,
		Addr	addr_mask = `MaxAddr`
	)

overridevirtual

Reimplemented from ObjectFile.

Definition at line 376 of file elf_object.cc.

References interpreter, and loadSomeSymbols().

Referenced by loadAllSymbols().

◆ loadLocalSymbols()

bool ElfObject::loadLocalSymbols	(	SymbolTable *	symtab,
		Addr	base = `0`,
		Addr	offset = `0`,
		Addr	addr_mask = `MaxAddr`
	)

overridevirtual

Reimplemented from ObjectFile.

Definition at line 387 of file elf_object.cc.

References interpreter, and loadSomeSymbols().

Referenced by loadAllSymbols().

◆ loadSomeSymbols()

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

protected

Helper functions for loadGlobalSymbols() and loadLocalSymbols().

Definition at line 309 of file elf_object.cc.

References X86ISA::count, data, DPRINTF, elf, ArmISA::i, ImageFile::imageData, SymbolTable::insert(), ArmISA::offset, and panic.

Referenced by loadGlobalSymbols(), loadLocalSymbols(), and loadWeakSymbols().

◆ loadWeakSymbols()

bool ElfObject::loadWeakSymbols	(	SymbolTable *	symtab,
		Addr	base = `0`,
		Addr	offset = `0`,
		Addr	addr_mask = `MaxAddr`
	)

overridevirtual

Reimplemented from ObjectFile.

Definition at line 398 of file elf_object.cc.

References interpreter, and loadSomeSymbols().

Referenced by loadAllSymbols().

◆ mapSize()

Addr ElfObject::mapSize ( ) const

inlineoverridevirtual

Reimplemented from ObjectFile.

Definition at line 123 of file elf_object.hh.

◆ programHeaderCount()

uint16_t ElfObject::programHeaderCount ( )

inline

Definition at line 130 of file elf_object.hh.

References setInterpDir().

Referenced by AlphaProcess::argsInit(), RiscvProcess::argsInit(), MipsProcess::argsInit(), PowerProcess::argsInit(), SparcProcess::argsInit(), ArmProcess::argsInit(), and X86ISA::X86Process::argsInit().

◆ programHeaderSize()

uint16_t ElfObject::programHeaderSize ( )

inline

Definition at line 129 of file elf_object.hh.

Referenced by MipsProcess::argsInit(), RiscvProcess::argsInit(), PowerProcess::argsInit(), SparcProcess::argsInit(), ArmProcess::argsInit(), and X86ISA::X86Process::argsInit().

◆ programHeaderTable()

Addr ElfObject::programHeaderTable ( )

inline

Definition at line 128 of file elf_object.hh.

Referenced by AlphaProcess::argsInit(), RiscvProcess::argsInit(), MipsProcess::argsInit(), PowerProcess::argsInit(), SparcProcess::argsInit(), ArmProcess::argsInit(), and X86ISA::X86Process::argsInit().

◆ relocatable()

bool ElfObject::relocatable ( ) const

inlineoverridevirtual

Reimplemented from ObjectFile.

Definition at line 122 of file elf_object.hh.

◆ sectionExists()

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

protected

Definition at line 445 of file elf_object.cc.

References getSections(), and sectionNames.

◆ updateBias()

void ElfObject::updateBias ( Addr bias_addr )

overridevirtual

Reimplemented from ObjectFile.

Definition at line 455 of file elf_object.cc.

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

Member Data Documentation

◆ _programHeaderCount

uint16_t ElfObject::_programHeaderCount = 0

protected

Definition at line 72 of file elf_object.hh.

Referenced by ElfObject().

◆ _programHeaderSize

uint16_t ElfObject::_programHeaderSize = 0

protected

Definition at line 71 of file elf_object.hh.

Referenced by ElfObject().

◆ _programHeaderTable

Addr ElfObject::_programHeaderTable = 0

protected

Definition at line 70 of file elf_object.hh.

Referenced by handleLoadableSegment().

◆ ehdr

GElf_Ehdr ElfObject::ehdr

protected

Definition at line 62 of file elf_object.hh.

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

◆ elf

Elf* ElfObject::elf

protected

Definition at line 61 of file elf_object.hh.

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

◆ image

MemoryImage ElfObject::image

protected

Definition at line 100 of file elf_object.hh.

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

◆ interpreter

ElfObject* ElfObject::interpreter = nullptr

protected

Definition at line 75 of file elf_object.hh.

Referenced by ElfObject(), loadGlobalSymbols(), loadLocalSymbols(), and loadWeakSymbols().

◆ ldBias

Addr ElfObject::ldBias = 0

protected

Definition at line 80 of file elf_object.hh.

Referenced by updateBias().

◆ ldMax

Addr ElfObject::ldMax = MaxAddr

protected

Definition at line 91 of file elf_object.hh.

◆ ldMin

Addr ElfObject::ldMin = MaxAddr

protected

Definition at line 90 of file elf_object.hh.

◆ relocate

bool ElfObject::relocate = true

protected

Definition at line 86 of file elf_object.hh.

◆ sectionNames

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

protected

Definition at line 73 of file elf_object.hh.

Referenced by getSections(), and sectionExists().

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

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

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ElfObject()

◆ ~ElfObject()

Member Function Documentation

◆ bias()

◆ buildImage()

◆ determineArch()

◆ determineOpSys()

◆ getInterpPath()

◆ getInterpreter()

◆ getSections()

◆ handleLoadableSegment()

◆ hasTLS()

◆ loadAllSymbols()

◆ loadGlobalSymbols()

◆ loadLocalSymbols()

◆ loadSomeSymbols()

◆ loadWeakSymbols()

◆ mapSize()

◆ programHeaderCount()

◆ programHeaderSize()

◆ programHeaderTable()

◆ relocatable()

◆ sectionExists()

◆ updateBias()

Member Data Documentation

◆ _programHeaderCount

◆ _programHeaderSize

◆ _programHeaderTable

◆ ehdr

◆ elf

◆ image

◆ interpreter

◆ ldBias

◆ ldMax

◆ ldMin

◆ relocate

◆ sectionNames