gem5 [DEVELOP-FOR-25.1]
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Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
gem5::loader::ElfObject Class Reference

#include <elf_object.hh>

Inheritance diagram for gem5::loader::ElfObject:
gem5::loader::ObjectFile gem5::loader::ImageFile

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 gem5::loader::ObjectFile
virtual ~ObjectFile ()
Arch getArch () const
OpSys getOpSys () const
ByteOrder getByteOrder () const
const SymbolTable & symtab () const
Addr entryPoint () const

Protected Member Functions

void determineArch ()
void determineOpSys ()
void determineByteOrder ()
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().
void getSections ()
bool sectionExists (std::string sec)
Protected Member Functions inherited from gem5::loader::ObjectFile
 ObjectFile (ImageFileDataPtr ifd)
Protected Member Functions inherited from gem5::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 gem5::loader::ObjectFile
Arch arch = UnknownArch
OpSys opSys = UnknownOpSys
ByteOrder byteOrder = ByteOrder::little
SymbolTable _symtab
Addr entry = 0
Protected Attributes inherited from gem5::loader::ImageFile
ImageFileDataPtr imageData

Detailed Description

Definition at line 63 of file elf_object.hh.

Constructor & Destructor Documentation

◆ ElfObject()

gem5::loader::ElfObject::ElfObject ( ImageFileDataPtr ifd)

Definition at line 109 of file elf_object.cc.

References _programHeaderCount, _programHeaderSize, gem5::loader::ObjectFile::_symtab, gem5::loader::Symbol::address(), gem5::X86ISA::count, gem5::loader::createObjectFile(), data, determineArch(), determineByteOrder(), determineOpSys(), DPRINTF, DPRINTFR, ehdr, elf, ElfObject(), gem5::loader::ObjectFile::entry, gem5::loader::Symbol::File, gem5::loader::Symbol::Function, getInterpPath(), gem5::loader::Symbol::Global, handleLoadableSegment(), gem5::ArmISA::i, image, gem5::loader::ImageFile::imageData, interpreter, gem5::loader::Symbol::Local, gem5::loader::Symbol::name(), gem5::loader::Symbol::NoType, gem5::loader::Symbol::Object, gem5::loader::ObjectFile::ObjectFile(), gem5::loader::Symbol::Other, panic, gem5::loader::Symbol::Section, gem5::X86ISA::seg, gem5::loader::ObjectFile::symtab(), warn_if, and gem5::loader::Symbol::Weak.

Referenced by ElfObject().

◆ ~ElfObject()

gem5::loader::ElfObject::~ElfObject ( )

Definition at line 406 of file elf_object.cc.

References elf.

Member Function Documentation

◆ bias()

Addr gem5::loader::ElfObject::bias ( ) const
inlineoverridevirtual

Reimplemented from gem5::loader::ObjectFile.

Definition at line 117 of file elf_object.hh.

References ldBias.

◆ buildImage()

MemoryImage gem5::loader::ElfObject::buildImage ( ) const
inlineoverridevirtual

Implements gem5::loader::ImageFile.

Definition at line 112 of file elf_object.hh.

References image.

◆ determineArch()

void gem5::loader::ElfObject::determineArch ( )
protected

Definition at line 247 of file elf_object.cc.

References gem5::loader::ObjectFile::arch, gem5::loader::Arm, gem5::loader::Arm64, gem5::bits(), ehdr, fatal, gem5::loader::I386, gem5::loader::Mips, gem5::loader::Power, gem5::loader::Power64, gem5::loader::Riscv32, gem5::loader::Riscv64, gem5::loader::SPARC32, gem5::loader::SPARC64, gem5::loader::Thumb, warn, and gem5::loader::X86_64.

Referenced by ElfObject().

◆ determineByteOrder()

void gem5::loader::ElfObject::determineByteOrder ( )
protected

Definition at line 365 of file elf_object.cc.

References gem5::loader::ObjectFile::byteOrder, ehdr, and panic.

Referenced by ElfObject().

◆ determineOpSys()

void gem5::loader::ElfObject::determineOpSys ( )
protected

Definition at line 287 of file elf_object.cc.

References ehdr, elf, fatal, gem5::loader::FreeBSD, gem5::htobe(), gem5::htole(), gem5::loader::Linux, gem5::loader::LinuxArmOABI, gem5::loader::LinuxPower64ABIv1, gem5::loader::LinuxPower64ABIv2, gem5::loader::ObjectFile::opSys, gem5::loader::Solaris, gem5::loader::Tru64, and gem5::loader::UnknownOpSys.

Referenced by ElfObject().

◆ getInterpPath()

std::string gem5::loader::ElfObject::getInterpPath ( const GElf_Phdr & phdr) const

Definition at line 236 of file elf_object.cc.

References gem5::loader::ImageFile::imageData.

Referenced by ElfObject().

◆ getInterpreter()

ObjectFile * gem5::loader::ElfObject::getInterpreter ( ) const
inlineoverridevirtual

Reimplemented from gem5::loader::ObjectFile.

Definition at line 114 of file elf_object.hh.

References interpreter, and gem5::loader::ObjectFile::ObjectFile().

◆ getSections()

void gem5::loader::ElfObject::getSections ( )
protected

Definition at line 412 of file elf_object.cc.

References ehdr, elf, gem5::loader::ImageFile::imageData, panic, and sectionNames.

Referenced by sectionExists().

◆ handleLoadableSegment()

void gem5::loader::ElfObject::handleLoadableSegment ( GElf_Phdr phdr,
int seg_num )
protected

Definition at line 374 of file elf_object.cc.

References _programHeaderTable, ehdr, image, gem5::loader::ImageFile::imageData, name(), and warn.

Referenced by ElfObject().

◆ hasTLS()

bool gem5::loader::ElfObject::hasTLS ( )
inlineoverridevirtual

Reimplemented from gem5::loader::ObjectFile.

Definition at line 122 of file elf_object.hh.

References sectionExists().

◆ loadSomeSymbols()

bool gem5::loader::ElfObject::loadSomeSymbols ( SymbolTable * symtab,
int binding,
Addr mask,
Addr base,
Addr offset )
protected

Helper functions for loadGlobalSymbols() and loadLocalSymbols().

References gem5::RiscvISA::base, gem5::ArmISA::mask, gem5::ArmISA::offset, and gem5::loader::ObjectFile::symtab().

◆ mapSize()

Addr gem5::loader::ElfObject::mapSize ( ) const
inlineoverridevirtual

Reimplemented from gem5::loader::ObjectFile.

Definition at line 119 of file elf_object.hh.

References ldMax, and ldMin.

◆ programHeaderCount()

uint16_t gem5::loader::ElfObject::programHeaderCount ( )
inline

Definition at line 126 of file elf_object.hh.

References _programHeaderCount.

◆ programHeaderSize()

uint16_t gem5::loader::ElfObject::programHeaderSize ( )
inline

Definition at line 125 of file elf_object.hh.

References _programHeaderSize.

◆ programHeaderTable()

Addr gem5::loader::ElfObject::programHeaderTable ( )
inline

Definition at line 124 of file elf_object.hh.

References _programHeaderTable.

◆ relocatable()

bool gem5::loader::ElfObject::relocatable ( ) const
inlineoverridevirtual

Reimplemented from gem5::loader::ObjectFile.

Definition at line 118 of file elf_object.hh.

References relocate.

◆ sectionExists()

bool gem5::loader::ElfObject::sectionExists ( std::string sec)
protected

Definition at line 448 of file elf_object.cc.

References getSections(), and sectionNames.

Referenced by hasTLS().

◆ updateBias()

void gem5::loader::ElfObject::updateBias ( Addr bias_addr)
overridevirtual

Reimplemented from gem5::loader::ObjectFile.

Definition at line 458 of file elf_object.cc.

References gem5::loader::ObjectFile::entry, image, and ldBias.

Member Data Documentation

◆ _programHeaderCount

uint16_t gem5::loader::ElfObject::_programHeaderCount = 0
protected

Definition at line 78 of file elf_object.hh.

Referenced by ElfObject(), and programHeaderCount().

◆ _programHeaderSize

uint16_t gem5::loader::ElfObject::_programHeaderSize = 0
protected

Definition at line 77 of file elf_object.hh.

Referenced by ElfObject(), and programHeaderSize().

◆ _programHeaderTable

Addr gem5::loader::ElfObject::_programHeaderTable = 0
protected

Definition at line 76 of file elf_object.hh.

Referenced by handleLoadableSegment(), and programHeaderTable().

◆ ehdr

GElf_Ehdr gem5::loader::ElfObject::ehdr
protected

Definition at line 67 of file elf_object.hh.

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

◆ elf

Elf* gem5::loader::ElfObject::elf
protected

Definition at line 66 of file elf_object.hh.

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

◆ image

MemoryImage gem5::loader::ElfObject::image
protected

Definition at line 106 of file elf_object.hh.

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

◆ interpreter

ElfObject* gem5::loader::ElfObject::interpreter = nullptr
protected

Definition at line 81 of file elf_object.hh.

Referenced by ElfObject(), and getInterpreter().

◆ ldBias

Addr gem5::loader::ElfObject::ldBias = 0
protected

Definition at line 86 of file elf_object.hh.

Referenced by bias(), and updateBias().

◆ ldMax

Addr gem5::loader::ElfObject::ldMax = MaxAddr
protected

Definition at line 97 of file elf_object.hh.

Referenced by mapSize().

◆ ldMin

Addr gem5::loader::ElfObject::ldMin = MaxAddr
protected

Definition at line 96 of file elf_object.hh.

Referenced by mapSize().

◆ relocate

bool gem5::loader::ElfObject::relocate = true
protected

Definition at line 92 of file elf_object.hh.

Referenced by relocatable().

◆ sectionNames

std::set<std::string> gem5::loader::ElfObject::sectionNames
protected

Definition at line 79 of file elf_object.hh.

Referenced by getSections(), and sectionExists().

The documentation for this class was generated from the following files:
Generated on Mon Oct 27 2025 04:13:19 for gem5 by doxygen 1.14.0