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SubjectRe: [PATCH v2 3/5] arm64: vdso: Don't use gcc plugins for building vgettimeofday.c
On Wed, Jun 24, 2020 at 03:33:28PM +0300, Alexander Popov wrote:
> Don't use gcc plugins for building arch/arm64/kernel/vdso/vgettimeofday.c
> to avoid unneeded instrumentation.
>
> Signed-off-by: Alexander Popov <alex.popov@linux.com>
> ---
> arch/arm64/kernel/vdso/Makefile | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile
> index 556d424c6f52..0f1ad63b3326 100644
> --- a/arch/arm64/kernel/vdso/Makefile
> +++ b/arch/arm64/kernel/vdso/Makefile
> @@ -29,7 +29,7 @@ ldflags-y := -shared -nostdlib -soname=linux-vdso.so.1 --hash-style=sysv \
> ccflags-y := -fno-common -fno-builtin -fno-stack-protector -ffixed-x18
> ccflags-y += -DDISABLE_BRANCH_PROFILING
>
> -CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os $(CC_FLAGS_SCS)
> +CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os $(CC_FLAGS_SCS) $(GCC_PLUGINS_CFLAGS)
> KBUILD_CFLAGS += $(DISABLE_LTO)
> KASAN_SANITIZE := n
> UBSAN_SANITIZE := n
> --
> 2.25.4

I'll pick this one up as a fix for 5.8, please let me know if that's a
problem.

Will

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