GNU Binutils

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GNU Binutils
Developer(s)GNU Project
Stable release
2.42[1] Edit this on Wikidata / 29 January 2024
TypeProgramming tools
LicenseGNU GPL

The GNU Binary Utilities, or binutils, is a collection of programming tools maintained by the GNU Project for working with executable code including assembly, linking and many other development operations.

The tools are originally from Cygnus Solutions.

The tools are typically used along with other GNU tools such as GNU Compiler Collection, and the GNU Debugger.


The tools include:

as assembler popularly known as GAS (GNU Assembler)
ld linker
gprof profiler
addr2line convert address to file and line
ar create, modify, and extract from archives
c++filt demangling filter for C++ symbols
dlltool creation of Windows dynamic-link libraries
gold alternative linker for ELF files
nlmconv object file conversion to a NetWare Loadable Module
nm list symbols exported by object file
objcopy copy object files, possibly making changes
objdump dump information about object files
ranlib generate indices for archives (for compatibility; same as ar -s)
readelf display content of ELF files
size list total and section sizes
strings list printable strings
strip remove symbols from an object file
windmc generates Windows message resources
windres compiler for Windows resource files


Ulrich Drepper wrote elfutils, to partially replace GNU Binutils, purely for Linux and with support only for ELF and DWARF. It distributes three libraries with it for programmatic access.[2][3]

See also[edit]


  1. ^ Nick Clifton (29 January 2024). "GNU Binutils 2.42 Released". Retrieved 29 January 2024.
  2. ^ elfutils home
  3. ^ elfutils at Drepper's home

External links[edit]