tag | b1d24116bb61b4e7819b5641dd17fe3abe1b76e6 | |
---|---|---|
tagger | The Android Open Source Project <initial-contribution@android.com> | Wed Apr 12 14:25:00 2023 -0700 |
object | 11ba04ed31a8486a1c5088289cebfb2d0346e770 |
Android U Beta 1 GPL
commit | 11ba04ed31a8486a1c5088289cebfb2d0346e770 | [log] [tgz] |
---|---|---|
author | Frederick Mayle <fmayle@google.com> | Thu Mar 30 12:51:31 2023 -0700 |
committer | Frederick Mayle <fmayle@google.com> | Thu Mar 30 12:55:10 2023 -0700 |
tree | 3d2e66dd60d36a1778a2c84ed94a2021e4dbad30 | |
parent | dca9aae545660380d1bc30a0bdef01fbc9c6ca35 [diff] |
Bypass libc memfd_create when building with glibc Needed by crosvm. We've been asking them to make direct syscalls when this happened previously, but instead patching it in the nix crate seems tidier and we can clean it up on our side when either (1) we update glibc or (2) we switch to musl and drop glibc support. Bug: 275386231 Test: m Change-Id: Ic31e7c2862e1d5ce967675c0f7b9d0a31809fac6
Nix seeks to provide friendly bindings to various *nix platform APIs (Linux, Darwin, ...). The goal is to not provide a 100% unified interface, but to unify what can be while still providing platform specific APIs.
For many system APIs, Nix provides a safe alternative to the unsafe APIs exposed by the libc crate. This is done by wrapping the libc functionality with types/abstractions that enforce legal/safe usage.
As an example of what Nix provides, examine the differences between what is exposed by libc and nix for the gethostname system call:
// libc api (unsafe, requires handling return code/errno) pub unsafe extern fn gethostname(name: *mut c_char, len: size_t) -> c_int; // nix api (returns a nix::Result<OsString>) pub fn gethostname() -> Result<OsString>;
nix target support consists of two tiers. While nix attempts to support all platforms supported by libc, only some platforms are actively supported due to either technical or manpower limitations. Support for platforms is split into three tiers:
The following targets are supported by nix
:
Tier 1:
Tier 2:
Tier 3:
nix is supported on Rust 1.56.1 and higher. Its MSRV will not be changed in the future without bumping the major or minor version.
Contributions are very welcome. Please See CONTRIBUTING for additional details.
Feel free to join us in the nix-rust/nix channel on Gitter to discuss nix
development.
Nix is licensed under the MIT license. See LICENSE for more details.