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This crate contains bindgen-generated bindings for Linux's userspace API.
This is primarily of interest if you want to make raw system calls directly, which is tedious and error prone and not necessary for most use cases. For a minimal type-safe, memory-safe, and I/O-safe API to the Linux system calls built on these bindings, see the rsix crate.
The full bindings are quite large, so they've been split up into modules and
cargo features. By default, general and errno are enabled, which provide
most things needed by general-purpose code.
The default bindings are generated from Linux 2.3.36, as it is the
oldest version supported by Rust. Modules v5_4 and v5_11, enabled by
features v5_4 and v5_11 respectively, contain generated bindings for
Linux 5.4 and Linux 5.11, which provide access to numerous new features, though
they may not be available on all supported Linux versions.
To regenerate the generated bindings, run cd gen && cargo run --release.
Similar crates
This is similar to linux-sys, but supports multiple Linux versions at once, including the oldest version of Linux that Rust supports, and also new versions, making it easy to selectively mix in new features. Also, the bindings are generated offline, rather than in a build.rs, making downstream builds simpler. And, this crate has bindings for more headers, as well as supplementary definitions not exported by Linux's headers but nonetheless needed by userspace.