ELF Identification Bytes

Initial bytes of the ELF file, specifying how it should be interpreted. More...

Macros
#define	EI_MAG0   0
	File identification: 0x7f.
#define	EI_MAG1   1
	File identification: 'E'.
#define	EI_MAG2   2
	File identification: 'L'.
#define	EI_MAG3   3
	File identification: 'F'.
#define	EI_CLASS   4
	File class (32/64-bit)
#define	EI_DATA   5
	Data encoding (LSB/MSB)
#define	EI_VERSION   6
	File version (must be 1)
#define	EI_OSABI   7
	Operating System/ABI identification.
#define	EI_ABIVERSION   8
	ABI version.
#define	EI_PAD   9
	Start of padding bytes.
#define	EI_NIDENT   16
	Size of elf_hdr::ident.
#define	ELFCLASSNONE   0
	Invalid class.
#define	ELFCLASS32   1
	32-bit objects
#define	ELFCLASS64   2
	64-bit objects
#define	ELFDATANONE   0
	Invalid encoding.
#define	ELFDATA2LSB   1
	2's complement, little endian
#define	ELFDATA2MSB   2
	2's complement, big Endian
#define	EV_NONE   0
	Invalid version.
#define	EV_CURRENT   1
	Current version.

Detailed Description

Initial bytes of the ELF file, specifying how it should be interpreted.

This group contains first the indexes of each ident field, then defines for the values they can contain.

Some of these are shared by other header fields.

Macro Definition Documentation

EI_ABIVERSION

#define EI_ABIVERSION   8

ABI version.

EI_CLASS

#define EI_CLASS   4

File class (32/64-bit)

EI_DATA

#define EI_DATA   5

Data encoding (LSB/MSB)

EI_MAG0

#define EI_MAG0   0

File identification: 0x7f.

EI_MAG1

#define EI_MAG1   1

File identification: 'E'.

EI_MAG2

#define EI_MAG2   2

File identification: 'L'.

EI_MAG3

#define EI_MAG3   3

File identification: 'F'.

EI_NIDENT

#define EI_NIDENT   16

Size of elf_hdr::ident.

EI_OSABI

#define EI_OSABI   7

Operating System/ABI identification.

EI_PAD

#define EI_PAD   9

Start of padding bytes.

EI_VERSION

#define EI_VERSION   6

File version (must be 1)

ELFCLASS32

#define ELFCLASS32   1

32-bit objects

ELFCLASS64

#define ELFCLASS64   2

64-bit objects

ELFCLASSNONE

#define ELFCLASSNONE   0

Invalid class.

ELFDATA2LSB

#define ELFDATA2LSB   1

2's complement, little endian

ELFDATA2MSB

#define ELFDATA2MSB   2

2's complement, big Endian

ELFDATANONE

#define ELFDATANONE   0

Invalid encoding.

EV_CURRENT

#define EV_CURRENT   1

Current version.

EV_NONE

#define EV_NONE   0

Invalid version.