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

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Message-ID: <CAK7LNAQ695Ur3tvq+W67zgkRuw_wnRJpoAsmpEUgVLyFx8USNg@mail.gmail.com>
Date: Sat, 15 Mar 2025 17:15:33 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: Thomas Weißschuh <linux@...ssschuh.net>
Cc: Nathan Chancellor <nathan@...nel.org>, Nicolas Schier <nicolas@...sle.eu>, 
	Jonathan Corbet <corbet@....net>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, 
	Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, 
	"H. Peter Anvin" <hpa@...or.com>, Ben Hutchings <ben@...adent.org.uk>, linux-kbuild@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org
Subject: Re: [PATCH 3/4] x86/boot: Switch to -ffile-prefix-map

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@...ssschuh.net> 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@...ssschuh.net>
> ---
>  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