gem5  v21.1.0.2
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(). More...
 
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 64 of file elf_object.hh.

Constructor & Destructor Documentation

◆ ElfObject()

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

Definition at line 110 of file elf_object.cc.

References _programHeaderCount, _programHeaderSize, gem5::loader::ObjectFile::_symtab, gem5::loader::Symbol::address, gem5::loader::Symbol::binding, gem5::X86ISA::count, gem5::loader::createObjectFile(), data, determineArch(), determineByteOrder(), determineOpSys(), DPRINTF, DPRINTFR, ehdr, elf, gem5::loader::ObjectFile::entry, getInterpPath(), gem5::loader::Symbol::Global, handleLoadableSegment(), gem5::ArmISA::i, image, gem5::loader::ImageFile::imageData, gem5::loader::SymbolTable::insert(), interpreter, gem5::loader::Symbol::Local, gem5::loader::Symbol::name, panic, gem5::X86ISA::seg, gem5::loader::MemoryImage::segments(), gem5::loader::ObjectFile::symtab(), warn_if, and gem5::loader::Symbol::Weak.

◆ ~ElfObject()

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

Definition at line 382 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 118 of file elf_object.hh.

References ldBias.

◆ buildImage()

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

Implements gem5::loader::ImageFile.

Definition at line 113 of file elf_object.hh.

References image.

◆ determineArch()

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

Definition at line 223 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 341 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 263 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 212 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 115 of file elf_object.hh.

References interpreter.

◆ getSections()

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

Definition at line 388 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 350 of file elf_object.cc.

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

Referenced by ElfObject().

◆ hasTLS()

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

Reimplemented from gem5::loader::ObjectFile.

Definition at line 123 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().

◆ mapSize()

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

Reimplemented from gem5::loader::ObjectFile.

Definition at line 120 of file elf_object.hh.

References ldMax, and ldMin.

◆ programHeaderCount()

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

Definition at line 127 of file elf_object.hh.

References _programHeaderCount.

◆ programHeaderSize()

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

Definition at line 126 of file elf_object.hh.

References _programHeaderSize.

◆ programHeaderTable()

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

Definition at line 125 of file elf_object.hh.

References _programHeaderTable.

◆ relocatable()

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

Reimplemented from gem5::loader::ObjectFile.

Definition at line 119 of file elf_object.hh.

References relocate.

◆ sectionExists()

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

Definition at line 424 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 434 of file elf_object.cc.

References gem5::loader::ObjectFile::entry, image, ldBias, and gem5::loader::MemoryImage::offset().

Member Data Documentation

◆ _programHeaderCount

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

Definition at line 79 of file elf_object.hh.

Referenced by ElfObject(), and programHeaderCount().

◆ _programHeaderSize

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

Definition at line 78 of file elf_object.hh.

Referenced by ElfObject(), and programHeaderSize().

◆ _programHeaderTable

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

Definition at line 77 of file elf_object.hh.

Referenced by handleLoadableSegment(), and programHeaderTable().

◆ ehdr

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

Definition at line 68 of file elf_object.hh.

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

◆ elf

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

Definition at line 67 of file elf_object.hh.

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

◆ image

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

Definition at line 107 of file elf_object.hh.

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

◆ interpreter

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

Definition at line 82 of file elf_object.hh.

Referenced by ElfObject(), and getInterpreter().

◆ ldBias

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

Definition at line 87 of file elf_object.hh.

Referenced by bias(), and updateBias().

◆ ldMax

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

Definition at line 98 of file elf_object.hh.

Referenced by mapSize().

◆ ldMin

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

Definition at line 97 of file elf_object.hh.

Referenced by mapSize().

◆ relocate

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

Definition at line 93 of file elf_object.hh.

Referenced by relocatable().

◆ sectionNames

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

Definition at line 80 of file elf_object.hh.

Referenced by getSections(), and sectionExists().

The documentation for this class was generated from the following files:
Generated on Tue Sep 21 2021 12:31:27 for gem5 by doxygen 1.8.17