Re: [PATCH] kbuild: dummy-tools: pretend we understand -fpatchable-function-entry

From: Masahiro Yamada
Date: Wed Nov 01 2023 - 10:31:40 EST


On Mon, Oct 30, 2023 at 8:34 PM Jiri Slaby (SUSE) <jirislaby@xxxxxxxxxx> wrote:
>
> Commit 0f71dcfb4aef (powerpc/ftrace: Add support for
> -fpatchable-function-entry) added a script to check for
> -fpatchable-function-entry compiler support. The script expects compiler
> to emit the section __patchable_function_entries and few nops after a
> function entry.
>
> If the compiler understands and emits the above,
> CONFIG_ARCH_USING_PATCHABLE_FUNCTION_ENTRY is set.
>
> So teach dummy-tools' gcc about this.
>
> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@xxxxxxxxxx>
> Cc: Masahiro Yamada <masahiroy@xxxxxxxxxx>
> Cc: Nathan Chancellor <nathan@xxxxxxxxxx>
> Cc: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
> Cc: Nicolas Schier <nicolas@xxxxxxxxx>
> Cc: linux-kbuild@xxxxxxxxxxxxxxx
> Cc: Naveen N Rao <naveen@xxxxxxxxxx>
> Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
> ---


Applied to linux-kbuild.
Thanks.




--
Best Regards
Masahiro Yamada