| commit | d8ad45fd8025a6639af882ce8898e6cb7e71e798 | [log] [tgz] |
|---|---|---|
| author | Colin Cross <ccross@android.com> | Mon Jun 27 14:29:02 2022 -0700 |
| committer | Colin Cross <ccross@android.com> | Thu Oct 20 12:54:59 2022 -0700 |
| tree | aa4fc2dd044ffe92968044a158170f7ed9bdabf0 | |
| parent | fdd70d411866a09205b1853c4b59951b5c86eb8c [diff] |
HACK: use i64 for time_t on musl Musl has use a 64-bit time_t since 1.2.0, but rust still uses the old 32-bit time_t on 32-bit platforms. https://github.com/rust-lang/libc/pull/2088 will eventually fix this, but until then use i64 for time_t on musl in our tree. This will break binary compatibility with rust crates built against musl outside our tree, but those shouldn't get mixed with our tree. Bug: 216192129 Test: m USE_HOST_MUSL=true host-native -k Change-Id: Iaafd06e180514157015607be50f625cb0661e1b8
libc provides all of the definitions necessary to easily interoperate with C code (or “C-like” code) on each of the platforms that Rust supports. This includes type definitions (e.g. c_int), constants (e.g. EINVAL) as well as function headers (e.g. malloc).
This crate exports all underlying platform types, functions, and constants under the crate root, so all items are accessible as libc::foo. The types and values of all the exported APIs match the platform that libc is compiled for.
More detailed information about the design of this library can be found in its associated RFC.
Add the following to your Cargo.toml:
[dependencies] libc = "0.2"
std: by default libc links to the standard library. Disable this feature to remove this dependency and be able to use libc in #![no_std] crates.
extra_traits: all structs implemented in libc are Copy and Clone. This feature derives Debug, Eq, Hash, and PartialEq.
const-extern-fn: Changes some extern fns into const extern fns. This feature requires a nightly rustc.
deprecated: use_std is deprecated, and is equivalent to std.
The minimum supported Rust toolchain version is Rust 1.13.0 . APIs requiring newer Rust features are only available on newer Rust toolchains:
| Feature | Version |
|---|---|
union | 1.19.0 |
const mem::size_of | 1.24.0 |
repr(align) | 1.25.0 |
extra_traits | 1.25.0 |
core::ffi::c_void | 1.30.0 |
repr(packed(N)) | 1.33.0 |
cfg(target_vendor) | 1.33.0 |
Platform-specific documentation (master branch).
See ci/build.sh for the platforms on which libc is guaranteed to build for each Rust toolchain. The test-matrix at GitHub Actions and Cirrus CI show the platforms in which libc tests are run.
This project is licensed under either of
at your option.
We welcome all people who want to contribute. Please see the contributing instructions for more information.
Contributions in any form (issues, pull requests, etc.) to this project must adhere to Rust's Code of Conduct.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in libc by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.