Re: [PATCH v2] powerpc/vdso: link with -z noexecstack
From: Michael Ellerman
Date: Fri Sep 09 2022 - 08:11:26 EST
On Fri, 2 Sep 2022 17:25:24 +0200, Christophe Leroy wrote:
> With recent binutils, the following warning appears:
>
> VDSO32L arch/powerpc/kernel/vdso/vdso32.so.dbg
> /opt/gcc-12.2.0-nolibc/powerpc64-linux/bin/../lib/gcc/powerpc64-linux/12.2.0/../../../../powerpc64-linux/bin/ld: warning: arch/powerpc/kernel/vdso/getcpu-32.o: missing .note.GNU-stack section implies executable stack
> /opt/gcc-12.2.0-nolibc/powerpc64-linux/bin/../lib/gcc/powerpc64-linux/12.2.0/../../../../powerpc64-linux/bin/ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
>
> To avoid that, explicitely tell the linker we don't
> want executable stack.
>
> [...]
Applied to powerpc/next.
[1/1] powerpc/vdso: link with -z noexecstack
https://git.kernel.org/powerpc/c/1d53c0192b15f42129a3dbbbfa05637bcf781a3e
cheers