Re: [PATCH 3/3] rust: Enable for MIPS

[Jiaxun Yang]

在2024年9月3日九月 下午8:01，Miguel Ojeda写道：
> On Tue, Sep 3, 2024 at 8:32 PM Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx> wrote:
>>
>> Ahh thanks for the elaboration.
>
> You're welcome!
>
>> However, kernel supports many ISA variants that are not defined by any rust target
>> triple, I'm not really sure if it's appropriate to define them all in upstream.
>
> They need to be in upstream Rust somehow, because upstream Rust does
> not want to stabilize `target.json` since it is too tied to LLVM (as
> far as we have been told). Whether that is via `-Ctarget-feature`, or a
> new `-Cglobal-target-feature`, or specific flags like `-Zfixed-x18`
> (originally `-Ctarget-feature=+reserve-x18`), or (many) new target
> triples for different combinations, or something else, it depends on
> the case and what upstream Rust wants to do.
>
> That is why we should tell them what is needed, ideally in a new issue
> in upstream Rust, and link it in
> https://github.com/Rust-for-Linux/linux/issues/355 (please see that
> list for similar examples).

Seems like this topic is covered by an existing issue

Reported at:
https://github.com/rust-embedded/wg/issues/792#issuecomment-2328133517

Thanks!
>
> I hope that explains a bit more the context.
>
> Cheers,
> Miguel

-- 
- Jiaxun