Rust for Linux and host-only libraries

From	Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Newsgroups	linux.debian.kernel
Subject	Rust for Linux and host-only libraries
Date	2024-04-19 19:30 +0200
Message-ID	<Iv0dH-7pRK-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hi Ximin, Sylvestre, Fabian, all,

In Rust for Linux, we are considering using host-only/userspace Rust
libraries (e.g. `syn`), and we were asked to check whether it would be
possible to just pick them from the distribution (since, in principle,
they don't require kernel-specific changes).

What is the policy in Debian for those? I was told about
`debcargo-conf` by Zixing Liu, and indeed I can see e.g. `syn` there
in `librust-syn-dev`, which places the sources at
`/usr/share/cargo/registry/`, which is great for what we need. Is that
correct? This would be useful for kernel developers that do not trust
third-party repositories (not even Rust's/crates.io/the upstream
repository).

By the way, is there a way to query where the sources are (i.e. that
path) in a "standard" way (e.g. like `pkg-config`)? Or, at least, can
we assume it should be stable? (e.g. for automated detection and/or
instructions we may want to provide).

Thanks!

Cheers,
Miguel

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Rust for Linux and host-only libraries Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> - 2024-04-19 19:30 +0200
  Re: Rust for Linux and host-only libraries Fabian Grünbichler <debian@fabian.gruenbichler.email> - 2024-04-19 20:40 +0200
    Re: Rust for Linux and host-only libraries Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> - 2024-04-19 21:10 +0200
      Re: Rust for Linux and host-only libraries Fabian Grünbichler <debian@fabian.gruenbichler.email> - 2024-04-19 23:00 +0200
        Re: Rust for Linux and host-only libraries Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> - 2024-04-20 12:40 +0200

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