macOS
Homebrewverified · 100%
brew install elfx86extslocal Homebrew formula metadata
brew / rank 8624
Install elfx86exts with Homebrew, apt, Nix, pacman
Decodes x86 binaries (ELF and Mach-O) and prints out ISA extensions in use. Version 0.6.2 via Homebrew; verified from local package data. Also installable with debian: sudo apt install elfx86exts.
install
Additional install commands
Linux
Debian aptverified · 92%
sudo apt install elfx86extsDebian stable package indexes · elfx86exts · source: deb.debian.org
Nixverified · 92%
nix profile install nixpkgs#elfx86extsnixpkgs package indexes · pkgs/by-name/el/elfx86exts/package.nix · source: api.github.com
Arch Linux pacmanverified · 92%
sudo pacman -S elfx86extsArch Linux sync databases · elfx86exts · source: geo.mirror.pkgbuild.com
overview
Package summary
Decodes x86 binaries (ELF and Mach-O) and prints out ISA extensions in use
Project links
Commands and aliases
- elfx86exts
history
Project history and usage
elfx86exts is a Rust command-line tool that disassembles binaries and reports which instruction-set extensions they use.
Project history
The project began as an x86 ELF-oriented analyzer, but the official README now notes that the name is misleading because the tool supports ELF and Mach-O binaries and has preliminary ARM64 support as well as x86 and x86-64.
The release branch ChangeLog records the first release in 2017, Mach-O and PE support in 2018, minimum Intel CPU generation reporting in 2018, Cranko-based release workflow changes in 2020, Capstone and object crate updates in 2021, and ARM64 support in 2023.
Adoption history
The official README says the tool is installable through package managers including Arch Linux AUR and conda-forge, and the supplied metadata records Homebrew, Debian, Nix, Pacman, and Ubuntu package names. The Cargo metadata documents `cargo install elfx86exts` as the direct Rust package-manager path.
How it is used
The package-nerd workflow is to install the binary, point it at a compiled executable or library, and use its reported ISA-extension set to understand portability constraints, CPU-generation requirements, or unexpected compiler output.
Why package nerds care
elfx86exts sits at the intersection of binary analysis and packaging: maintainers care about which CPU features a built artifact actually requires, especially when distributing binaries across older x86 machines, Linux distributions, macOS systems, or heterogeneous build farms.
Timeline
- 2017-09-29: Initial release.
- 2018-01-23: Version 0.2.0 added Mach-O and PE support.
- 2018-10-16: Version 0.3.0 added minimum Intel CPU generation reporting.
- 2021-10-18: Version 0.5.0 updated disassembly to Capstone 0.10 and object 0.27.
- 2023-10-12: Version 0.6.0 added preliminary ARM64 support.
- 2023-10-22: Version 0.6.2 fixed excessive memory consumption.
Related projects
- Related projects and libraries include Capstone, the Rust object crate, compiler toolchains, binary packaging systems, and CPU feature inspection tools.
Sources
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew bottle metadata was recorded.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
elfx86exts | executable | indexed executable | Discovered from the local executable index. |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-08-03
manager version0.6.2
manager updated
local dataunknown
upstreamnot available
latest detectednot detected
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:elfx86exts |
|---|---|
| Version | 0.6.2 |
| Package manager | Homebrew |
| Homepage | https://github.com/pkgw/elfx86exts |
| Repository | https://github.com/pkgw/elfx86exts |
| Bottle | not recorded |
| Service | none declared |
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Debian apt95%
elfx86exts 0.6.2-3+b1
Print instruction sets used by x86 binaries (ELF or MachO)
https://github.com/pkgw/elfx86exts
sudo apt install elfx86exts- Section: devel
- Architecture: amd64
- Source Package: rust-elfx86exts
- 2 dependencies
- normalized package name match
- Matched by: Elfx86exts
Nix95%
elfx86exts
nix profile install nixpkgs#elfx86exts- normalized package name match
- Matched by: Elfx86exts
Ubuntu apt95%
elfx86exts 0.6.2-1
Print instruction sets used by x86 binaries (ELF or MachO)
https://github.com/pkgw/elfx86exts
sudo apt install elfx86exts- Section: universe/devel
- Architecture: amd64
- Source Package: rust-elfx86exts
- 2 dependencies
- normalized package name match
- Matched by: Elfx86exts
pacman95%
elfx86exts 0.6.2-1
Decode ELF and MachO binaries and print out which instruction set extensions they use
https://github.com/pkgw/elfx86exts
sudo pacman -S elfx86exts- License: MIT
- Architecture: x86_64
- 2 dependencies
- normalized package name match
- Matched by: Elfx86exts
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- pkg.so package database
- pkgdb category and tag curation