Re: [PATCH] rust: fix regexp in scripts/is_rust_module.sh

[Miguel Ojeda]

On Fri, Feb 10, 2023 at 4:26 PM Andrea Righi <andrea.righi@xxxxxxxxxxxxx> wrote:
>
> nm can use "R" or "r" to show read-only data sections, but
> scripts/is_rust_module.sh can only recognize "r", so with some versions
> of binutils it can fail to detect if a module is a Rust module or not.

Do you know which versions? If so, it would be nice to document it here.

> Moreover, with this patch applied I can also relax the constraint of
> "RUST depends on !DEBUG_INFO_BTF" and build a kernel with Rust and BTF
> enabled at the same time (of course BTF generation is still skipped for
> Rust modules).

Even if that build succeeds, can you load the modules? i.e. the
constraint was there due to
https://github.com/Rust-for-Linux/linux/issues/735.

Also Cc'ing Daniel, Eric and Martin since they are the ones working on this.

Cheers,
Miguel