Re: [PATCH 3/4] x86/boot: Switch to -ffile-prefix-map

From: Masahiro Yamada
Date: Sat Mar 15 2025 - 04:16:18 EST


Hi X86 maintainers,

Is it OK to pick up this to kbuild tree?
Ack is appreciated.



On Fri, Mar 14, 2025 at 12:59 AM Thomas Weißschuh <linux@xxxxxxxxxxxxxx> wrote:
>
> -ffile-prefix-map is a more general variant of the currently used
> -fmacro-prefix-map. It is also what the top-level Makefile is using now.
>
> Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
> ---
> arch/x86/boot/Makefile | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
> index 9cc0ff6e9067d574488a35573eff4d0f8449e398..f500f82864aae80deb74faa3df9a8b6333d6c4ca 100644
> --- a/arch/x86/boot/Makefile
> +++ b/arch/x86/boot/Makefile
> @@ -54,7 +54,7 @@ targets += cpustr.h
>
> KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP
> KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
> -KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
> +KBUILD_CFLAGS += $(call cc-option,-ffile-prefix-map=$(srctree)/=)
> KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
> KBUILD_CFLAGS += $(CONFIG_CC_IMPLICIT_FALLTHROUGH)
>
>
> --
> 2.48.1
>


--
Best Regards
Masahiro Yamada