Re: [PATCH v10 25/27] x86: enable initial Rust support

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I have a patchset enabling support for both KCFI and IBT in the
kernel, but it uses changes not yet landed in stable rustc, which is
why I haven't sent it to the list yet:
https://github.com/Rust-for-Linux/linux/pull/1034

We've backported the changes to rustc that need to be present onto the
Android copy of the compiler, but it will take 6-12 weeks for them to
hit stable rustc, which is what general Linux is using.

If the IBT part would be helpful by itself immediately, I can split
that out - it's only the KCFI portion that won't currently work.

On Fri, Oct 14, 2022 at 1:40 PM Miguel Ojeda
<miguel.ojeda.sandonis@xxxxxxxxx> wrote:
>
> On Fri, Oct 14, 2022 at 8:35 PM Sami Tolvanen <samitolvanen@xxxxxxxxxx> wrote:
> >
> > Thanks, Miguel. I also talked to Ramon about KCFI earlier this week
> > and he expressed interest in helping with rustc support for it. In the
>
> Ah, that is great to hear -- thanks a lot to you both! (Cc'ing Ramon)
>
> > meanwhile, I think we can just add a depends on !CFI_CLANG to avoid
> > issues here.
>
> ACK, thanks -- if you want to send the patch, please feel free to do so.
>
> Cheers,
> Miguel




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