Re: [tip: x86/core] x86/ibt: Implement FineIBT-BHI mitigation
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- Subject: Re: [tip: x86/core] x86/ibt: Implement FineIBT-BHI mitigation
- From: Miguel Ojeda <miguel.ojeda.sandonis@xxxxxxxxx>
- Date: Mon, 10 Mar 2025 17:00:47 +0100
- Cc: linux-kernel@xxxxxxxxxxxxxxx, ojeda@xxxxxxxxxx, linux-tip-commits@xxxxxxxxxxxxxxx, Scott Constable <scott.d.constable@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Kees Cook <kees@xxxxxxxxxx>, x86@xxxxxxxxxx, Sami Tolvanen <samitolvanen@xxxxxxxxxx>, Alice Ryhl <aliceryhl@xxxxxxxxxx>
- In-reply-to: <20250226195308.GA29387@noisy.programming.kicks-ass.net>
- References: <20250224124200.820402212@infradead.org> <174057447519.10177.9447726208823079202.tip-bot2@tip-bot2> <20250226195308.GA29387@noisy.programming.kicks-ass.net>
On Wed, Feb 26, 2025 at 8:53 PM Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>
> On Wed, Feb 26, 2025 at 12:54:35PM -0000, tip-bot2 for Peter Zijlstra wrote:
>
> > +config CC_HAS_KCFI_ARITY
> > + def_bool $(cc-option,-fsanitize=kcfi -fsanitize-kcfi-arity)
> > + depends on CC_IS_CLANG && !RUST
> > +
>
> Miguel, can we work on fixing that !RUST dep?
Thanks for the ping Peter -- we discussed `rustc` in the couple PRs
that added it to LLVM back then, and I think the conclusion was that
it shouldn't be a fundamental problem to add it to `rustc`.
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