Skip to main content
Service phase: Beta

This service is still in development. Give us your feedback or view this page on the current PRONOM service.

Format

Executable and Linkable Format

Summary

Name
Executable and Linkable Format
Version
32bit Little Endian
Identifiers
PUID: fmt/688
Description
The Executable and Linkable Format (ELF) was developed by Unix System Laboratories and is the standard binary format for executables, object code, shared libraries and core dumps in Unix and Unix-like systems running x86 architecture. Generally within Unix and Unix-like systems, ELF files generally do not have a format extension, however some ELF files may be found with a .elf or .o extension
File extensions
elf, o
Source
Digital Preservation Department / The National Archives

Internal signatures

ELF 32bit LSB

Note
Magic (.ELF) Architecture (01=32bit, 02=64bit) Endianness (01=Little Endian (Least significant byte order) 02=Big Endian (Most significant byte order)) Version (01=format version 1)

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
7F454C46010101
Endianness
None

Changelog

  • Added in V81

    Release date
    18 February 2015

    Executable and Linkable Format 32bit Little Endian: New signature. Inspired by research conducted by Ange Albertini.

    Executable and Linkable Format 32bit Little Endian: Full entry added.