Re: [PATCH 0/4] kbuild: make all file references relative to source root

[Borislav Petkov]

On Thu, Mar 13, 2025 at 04:59:08PM +0100, Thomas Weißschuh wrote:
> -fmacro-prefix-map only affects __FILE__ and __BASE_FILE__.
> Other references, for example in debug information, is not affected.
> This makes handling of file references in the compiler output harder to
> use and creates problems for reproducible builds.
> 
> Switch to -ffile-prefix map which affects all references.
> 
> Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
> ---
> Thomas Weißschuh (4):
>       kbuild: make all file references relative to source root
>       kbuild: doc: reproducible-builds: drop section "Absolute filenames"
>       x86/boot: Switch to -ffile-prefix-map
>       x86/boot/compressed: Switch to -ffile-prefix-map

Btw, I don't see why those are 4 patches - it is a single logical change that
converts to this new compiler switch.

So why are they 4?

Masahiro, might as well merge them into one...

Thx.

-- 
Regards/Gruss,
    Boris.

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