On Thu, Sep 26, 2024 at 2:04 AM Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> Hi all,
>
> After merging Linus' tree, today's linux-next build (x86_64
> allmodconfig) failed (very quickly) like this:
>
> error: unknown unstable option: `patchable-function-entry`
>
> Presumably exposed by commit
>
> 1f9c4a996756 ("Kbuild: make MODVERSIONS support depend on not being a compile test build")
>
> Which allowed the rust parts of the build to happen in my x86_64
> allmodconfig build.
>
> This is a cross build on a PowerPC LE host.
>
> $ rustc --version
> rustc 1.80.1
> $ x86_64-linux-gnu-gcc --version
> x86_64-linux-gnu-gcc (Debian 14.2.0-1) 14.2.0
>
> I have reverted these commits for today:
>
> a2f115470520 ("kasan: rust: Add KASAN smoke test via UAF")
> e3117404b411 ("kbuild: rust: Enable KASAN support")
> f64e2f3a66e3 ("rust: kasan: Rust does not support KHWASAN")
> c42297438aee ("kbuild: rust: Define probing macros for rustc")
> cc1d98f9fe30 ("kasan: simplify and clarify Makefile")
> ca627e636551 ("rust: cfi: add support for CFI_CLANG with Rust")
>
> Basically for the latter one (as a guess).
>
> And the build works.
Sorry about that! The fix is here:
https://lore.kernel.org/all/20240925141944.277936-1-ojeda@xxxxxxxxxx/
Alice
