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

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Message-ID: <CAK7LNATuGr39YSsr0e6pB6wD7shyZVL12GMuE3HaWfXFXuRd4w@mail.gmail.com>
Date: Sat, 15 Mar 2025 17:16:12 +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 4/4] x86/boot/compressed: 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/compressed/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
> index 606c74f274593ebaf6200b7d307a453e2c6e872e..73a67366cb706658f9680cd50864a68546d3dc98 100644
> --- a/arch/x86/boot/compressed/Makefile
> +++ b/arch/x86/boot/compressed/Makefile
> @@ -38,7 +38,7 @@ KBUILD_CFLAGS += -fno-stack-protector
>  KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
>  KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
>  KBUILD_CFLAGS += -Wno-pointer-sign
> -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 += -D__DISABLE_EXPORTS
>  # Disable relocation relaxation in case the link is not PIE.
>
> --
> 2.48.1
>


-- 
Best Regards
Masahiro Yamada