Re: [PATCH 0/6] kbuild: rust: add `RUSTC_VERSION` and reconfig/rebuild support

[Alice Ryhl <aliceryhl@google.com>]

On Fri, Aug 9, 2024 at 12:12 AM Miguel Ojeda <ojeda@kernel.org> wrote:
>
> Hi all,
>
> This series introduces `RUSTC_VERSION` support, which is needed for
> several patch series getting upstreamed, and it will be increasingly
> useful as we now support several Rust compiler (and `bindgen`) versions.
> Later on, we will likely introduce other macros, such as
> `rustc-min-version`.
>
> In addition, the series introduces automatic reconfiguration and rebuild
> based on `RUSTC_VERSION_TEXT`, to mimic the C side, which is also good
> to have now that we support several versions.
>
> It is based on top of the current `rust-fixes`, since there are a couple
> pending changes to the version text Kconfig symbols that will be sent to
> Linus soon for an -rc.
>
> Cheers,
> Miguel

I tested this together with Rust Binder. I also ran this patchset
through Android's CI setup to verify that it works in builds with
CONFIG_RUST disabled. It passes both with and without a Rust compiler
available to the build system.

Tested-by: Alice Ryhl <aliceryhl@google.com>

I'm happy to rerun these tests for new versions.

Alice