readelf
TLDR
Display all information about ELF file
$ readelf -a /path/to/binary
Display all headers$ readelf --headers /path/to/binary
Display symbol table$ readelf --symbols /path/to/binary
Display ELF header$ readelf --file-header /path/to/binary
Display section headers$ readelf --section-headers /path/to/binary
Display program headers$ readelf --program-headers /path/to/binary
SYNOPSIS
readelf [options] elffile...
DESCRIPTION
readelf displays information about one or more ELF (Executable and Linkable Format) object files. It supports both 32-bit and 64-bit ELF files and operates independently of the BFD library, providing detailed analysis of binary files.
PARAMETERS
-a, --all
Display all information-h, --file-header
Display the ELF file header-l, --program-headers
Display program (segment) headers-S, --section-headers
Display section headers-e, --headers
Display all headers (file, program, section)-s, --symbols
Display symbol table entries--dyn-syms
Display dynamic symbol table-r, --relocs
Display relocation sections-d, --dynamic
Display dynamic section contents-n, --notes
Display NOTE segments/sections-V, --version-info
Display version sections-w, --debug-dump
Display DWARF debug sections-W, --wide
Allow wide output lines-C, --demangle
Decode C++ symbol names-z, --decompress
Decompress sections before display
CAVEATS
Unlike objdump, readelf operates independently of the BFD library and may provide different information. It only works with ELF format files.
HISTORY
readelf is part of the GNU binutils package. It provides more detailed ELF analysis compared to objdump for ELF-specific information.
