pkg.soopen package index

brew / rank 2861

Install cpu_features with Homebrew, apt, Nix

Cross platform C99 library to get cpu features at runtime. Version 0.11.0 via Homebrew; verified 2026-06-01. Also installable with debian: sudo apt install libcpu-features-dev.

Install commandSecurity notes

install

Additional install commands

macOS

Homebrewverified · 100%
brew install cpu_features

local Homebrew formula metadata

Linux

Debian aptverified · 92%
sudo apt install libcpu-features-dev

Debian stable package indexes · libcpu-features-dev · source: deb.debian.org

Nixverified · 92%
nix profile install nixpkgs#cpu_features

nixpkgs package indexes · pkgs/by-name/cp/cpu_features/package.nix · source: api.github.com

overview

Package summary

Cross platform C99 library to get cpu features at runtime

Commands and aliases

  • list_cpu_features

history

Project history and usage

cpu_features is Google's portable C99 library for detecting CPU instruction-set and microarchitecture features at runtime.

Project history

The official repository was created in 2018. Its README emphasizes portability, old-compiler compatibility, sandbox-aware detection strategies, thread safety, no allocation, no exceptions, unit tests, and suitability for low-level code such as libc-style routines.

Adoption history

The README positions cpu_features as cross-platform infrastructure across Linux, macOS, Windows, Android, and several CPU families. It also describes Android support and an NDK cpu-features.h compatibility layer, making it relevant to projects that need runtime dispatch without depending on platform-specific probes.

How it is used

Users include architecture-specific headers such as cpuinfo_x86.h or cpuinfo_arm.h, read feature structures returned by GetX86Info or GetArmInfo, and select optimized code paths based on runtime CPU support. The package also builds list_cpu_features for inspecting detected features, including JSON output.

Why package nerds care

For packagers, cpu_features is a small but foundational library: it helps upstreams choose optimized code paths while still shipping generic binaries, and it is designed to build with CMake, Bazel, and Zig across many architectures.

Timeline

  • 2018: The google/cpu_features repository was created.
  • 2025: v0.10.x releases were published from the official GitHub repository.
  • 2026: v0.11.0 was published from the official GitHub repository.

Related projects

  • The README describes cpu_features as an Android NDK cpu-features.h drop-in replacement.

security posture

Risk level: yellow

generalized runtime or code generation signal.

Risk classifier

yellow risk · medium confidence · runtime

Why

  • generalized runtime or code generation signal

Signals

  • text:runtime

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

CommandKindExposureNote
list_cpu_featuresexecutableindexed executableDiscovered 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 version0.11.0
manager updated2026-06-01
local dataunknown
upstreamnot available
latest detectednot detected
  • okNo freshness warnings were generated.

install metadata

Package metadata

Package keybrew:cpu_features
Version0.11.0
Package managerHomebrew
Homepagehttps://github.com/google/cpu_features
Repositoryhttps://github.com/google/cpu_features
Last updated2026-06-01T17:25:20Z
Pulseupdated
Bottlenot recorded
Servicenone 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%

libcpu-features-dev 0.9.0-1+b1

cross platform C99 library to get cpu features

https://github.com/google/cpu_features

sudo apt install libcpu-features-dev
  • Section: libdevel
  • Architecture: amd64
  • Source Package: cpu-features
  • normalized package name match
  • Matched by: Cpu Features
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libcpu-features-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Nix95%

cpu_features

nix profile install nixpkgs#cpu_features
  • normalized package name match
  • Matched by: Cpu Features
nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/cp/cpu_features/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
Ubuntu apt95%

libcpu-features-dev 0.9.0-1

cross platform C99 library to get cpu features

https://github.com/google/cpu_features

sudo apt install libcpu-features-dev
  • Section: universe/libdevel
  • Architecture: amd64
  • Source Package: cpu-features
  • normalized package name match
  • Matched by: Cpu Features
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libcpu-features-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

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.

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