Re: [LSF/MM/BPF TOPIC] Evaluating Rust for XArray

[Daniel Gomez <da.gomez@kernel.org>]

On 2026-02-17 21:18, Miguel Ojeda wrote:
> On Tue, Feb 17, 2026 at 6:51 PM Andreas Hindborg <a.hindborg@kernel.org> wrote:
> >
> > We don't have to wait 5-10 years for gcc to fully support Rust, before
> > we start playing with this.
> 
> By the way, I don't think we will need that many years to use GCC if
> companies are interested on it and support projects like GCC Rust
> and/or `rustc_codegen_gcc`, given their current state (for context,
> the latter is able to boot a kernel with Rust enabled for x86_64, and
> the former is prioritizing Rust for Linux).
> 
> Let me use this opportunity to say: if anyone wants to support that
> work, e.g. hardware companies for their architecture, then please ping
> me and I am happy to help getting in touch with them and figuring
> funding and things like that.

I'm not aware of the official GCC roadmap but LWN covered it in
"predictions for the new year" article [1]. Quoting:

"The gccrs project will deliver a working Rust compiler this year; it
will be usable to build the kernel's Rust code. This ambitious project
...
The availability of a GCC-based compiler will make that transition
easier for many people, especially those working with architectures that
the LLVM-based rustc compiler does not support..."

Link: https://lwn.net/Articles/1052269/ [1]

Whether that becomes true or not should not be relevant for the
discussion, as stated in this thread.