LIEF::ELF::Header Class Reference

Class which represents the ELF's header. This class mirrors the raw ELF Elfxx_Ehdr structure. More...

#include <Header.hpp>

Inheritance diagram for LIEF::ELF::Header:

Collaboration diagram for LIEF::ELF::Header:

Public Types
enum	{   EI_MAG0 = 0 , EI_MAG1 = 1 , EI_MAG2 = 2 , EI_MAG3 = 3 ,   EI_CLASS = 4 , EI_DATA = 5 , EI_VERSION = 6 , EI_OSABI = 7 ,   EI_ABIVERSION = 8 , EI_PAD = 9 , EI_NIDENT = 16 }
	e_ident size and indices. More...
enum class	FILE_TYPE {   NONE = 0 , REL = 1 , EXEC = 2 , DYN = 3 ,   CORE = 4 }
	The type of the underlying ELF file. This enum matches the semantic of ET_NONE, ET_REL, ... More...
enum class	VERSION { NONE = 0 , CURRENT = 1 }
	Match the result of Elfxx_Ehdr.e_version More...
enum class	CLASS { NONE = 0 , ELF32 , ELF64 }
	Match the result of Elfxx_Ehdr.e_ident[EI_CLASS] More...
enum class	OS_ABI {   SYSTEMV = 0 , HPUX = 1 , NETBSD = 2 , GNU = 3 ,   LINUX = 3 , HURD = 4 , SOLARIS = 6 , AIX = 7 ,   IRIX = 8 , FREEBSD = 9 , TRU64 = 10 , MODESTO = 11 ,   OPENBSD = 12 , OPENVMS = 13 , NSK = 14 , AROS = 15 ,   FENIXOS = 16 , CLOUDABI = 17 , C6000_ELFABI = 64 , AMDGPU_HSA = 64 ,   C6000_LINUX = 65 , ARM = 97 , STANDALONE = 255 }
	Match the result Elfxx_Ehdr.e_ident[EI_OSABI] More...
enum class	ELF_DATA { NONE = 0 , LSB = 1 , MSB = 2 }
	Match the result Elfxx_Ehdr.e_ident[EI_DATA] More...
using	identity_t = std::array<uint8_t, 16>
using	abstract_architecture_t = std::pair<ARCHITECTURES, std::set<MODES>>
Public Types inherited from LIEF::Object
template<class T >
using	output_t = add_pointer_t<decay_t<T>>
template<class T >
using	output_const_t = add_pointer_t<add_const_t<decay_t<T>>>

Public Member Functions
Header &	operator= (const Header &)=default
	Header (const Header &)=default
FILE_TYPE	file_type () const
	Define the object file type. (e.g. executable, library...)
OBJECT_TYPES	abstract_object_type () const
	LIEF abstract object type.
ARCH	machine_type () const
	Target architecture.
abstract_architecture_t	abstract_architecture () const
	LIEF abstract architecture.
ENDIANNESS	abstract_endianness () const
	LIEF abstract endianness.
VERSION	object_file_version () const
	Version of the object file format.
uint64_t	entrypoint () const
	Executable entrypoint.
uint64_t	program_headers_offset () const
	Offset of the programs table (also known as segments table)
uint64_t	section_headers_offset () const
	Offset of the sections table.
uint32_t	processor_flag () const
	Processor-specific flags.
uint32_t	header_size () const
	Size of the current header (i.e. sizeof(Elfxx_Ehdr)) This size should be 64 for an ELF64 binary and 52 for an ELF32.
uint32_t	program_header_size () const
	Return the size of a program header (i.e. sizeof(Elfxx_Phdr)) This size should be 56 for an ELF64 binary and 32 for an ELF32.
uint32_t	numberof_segments () const
	Return the the number of segments.
uint32_t	section_header_size () const
	Return the size of a section header (i.e. sizeof(Elfxx_Shdr)) This size should be 64 for a ELF64 binary and 40 for an ELF32.
uint32_t	numberof_sections () const
	Return the number of sections.
uint32_t	section_name_table_idx () const
	Return the section's index which contains sections' names.
identity_t &	identity ()
	Return the ELF identity as an std::array
const identity_t &	identity () const
CLASS	identity_class () const
	Return the object's class. ELF64 or ELF32
ELF_DATA	identity_data () const
	Specify the data encoding.
VERSION	identity_version () const
OS_ABI	identity_os_abi () const
	Identifies the version of the ABI for which the object is prepared.
uint32_t	identity_abi_version () const
	ABI Version.
bool	has (PROCESSOR_FLAGS flag) const
std::vector< PROCESSOR_FLAGS >	flags_list () const
void	file_type (FILE_TYPE type)
void	machine_type (ARCH arch)
void	object_file_version (VERSION version)
void	entrypoint (uint64_t entry)
void	program_headers_offset (uint64_t offset)
void	section_headers_offset (uint64_t offset)
void	processor_flag (uint32_t flags)
void	header_size (uint32_t size)
void	program_header_size (uint32_t size)
void	numberof_segments (uint32_t n)
void	section_header_size (uint32_t size)
void	numberof_sections (uint32_t n)
void	section_name_table_idx (uint32_t idx)
void	identity (const std::string &identity)
void	identity (const identity_t &identity)
void	identity_class (CLASS cls)
void	identity_data (ELF_DATA data)
void	identity_version (VERSION version)
void	identity_os_abi (OS_ABI osabi)
void	identity_abi_version (uint8_t version)
void	accept (Visitor &visitor) const override
Public Member Functions inherited from LIEF::Object
	Object (const Object &other)
Object &	operator= (const Object &other)
template<class T >
output_t< T >	as ()
template<class T >
output_const_t< T >	as () const
virtual bool	operator== (const Object &other) const
virtual bool	operator!= (const Object &other) const

Detailed Description

Class which represents the ELF's header. This class mirrors the raw ELF Elfxx_Ehdr structure.

Member Enumeration Documentation

anonymous enum

anonymous enum

e_ident size and indices.

Enumerator
EI_MAG0	File identification index.
EI_MAG1	File identification index.
EI_MAG2	File identification index.
EI_MAG3	File identification index.
EI_CLASS	File class.
EI_DATA	Data encoding.
EI_VERSION	File version.
EI_OSABI	OS/ABI identification.
EI_ABIVERSION	ABI version.
EI_PAD	Start of padding bytes.
EI_NIDENT	Number of bytes in e_ident.

CLASS

enum class LIEF::ELF::Header::CLASS

strong

Match the result of Elfxx_Ehdr.e_ident[EI_CLASS]

Enumerator
ELF32	Invalid class.
ELF64	32-bit objects

ELF_DATA

enum class LIEF::ELF::Header::ELF_DATA

strong

Match the result Elfxx_Ehdr.e_ident[EI_DATA]

Enumerator
LSB	Invalid data encoding.
MSB	2's complement, little endian

FILE_TYPE

enum class LIEF::ELF::Header::FILE_TYPE

strong

The type of the underlying ELF file. This enum matches the semantic of ET_NONE, ET_REL, ...

Enumerator
NONE	Can't be determined.
REL	Relocatable file (or object file)
EXEC	non-pie executable
DYN	Shared library or a pie-executable.
CORE	Core dump file.

OS_ABI

enum class LIEF::ELF::Header::OS_ABI

strong

Match the result Elfxx_Ehdr.e_ident[EI_OSABI]

Enumerator
HPUX	UNIX System V ABI.
NETBSD	HP-UX operating system.
GNU	NetBSD.
LINUX	GNU/Linux.
HURD	Historical alias for ELFOSABI_GNU.
SOLARIS	GNU/Hurd.
AIX	Solaris.
IRIX	AIX.
FREEBSD	IRIX.
TRU64	FreeBSD.
MODESTO	TRU64 UNIX.
OPENBSD	Novell Modesto.
OPENVMS	OpenBSD.
NSK	OpenVMS.
AROS	Hewlett-Packard Non-Stop Kernel.
FENIXOS	AROS.
CLOUDABI	FenixOS.
C6000_ELFABI	Nuxi CloudABI.
AMDGPU_HSA	Bare-metal TMS320C6000.
C6000_LINUX	AMD HSA runtime.
ARM	Linux TMS320C6000.
STANDALONE	ARM.

VERSION

enum class LIEF::ELF::Header::VERSION

strong

Match the result of Elfxx_Ehdr.e_version

Enumerator
NONE	Invalid ELF version.
CURRENT	Current version (default)

Member Function Documentation

accept()

void LIEF::ELF::Header::accept ( Visitor & visitor ) const

overridevirtual

Implements LIEF::Object.

identity_version()

VERSION LIEF::ELF::Header::identity_version ( ) const

inline

See also

object_file_version

numberof_sections()

uint32_t LIEF::ELF::Header::numberof_sections ( ) const

inline

Return the number of sections.

Warning

This value could differ from the real number of sections present in the binary. It must be taken as an indication

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

• ELF/Header.hpp