Subject: Re: [PATCH] arm: gen-mach-types: don't include absolute filename

From: Alexander Stein <[email-masked]>
Date: Thu, 04 Jun 2026 07:26:19 +0200

Hi Sascha,

thanks for bringing this up (again).

Am Mittwoch, 3. Juni 2026, 16:12:10 CEST schrieb Sascha Hauer:
> mach-types.h is part of the kapi and as such shipped in the
> linux-headers package. The embedded build path makes that package
> non-reproducible without going through an extra step of normalizing the
> path. YOCTO has similar problems in the kernel debug source package.
> 
> Make the path relative to the kernel source tree which is enough to
> find the tool that has generated the file.
> 
> Signed-off-by: Sascha Hauer <[email-masked]>
> ---
> This topic comes up every once in a while, without any clear objection
> other than "Or just leave it as is. It's in a comment, it doesn't get
> into the executable, and thus is harmless.", from which I am not sure if
> it actually is an objection. Cced the authors of the previous patches
> that I am aware of:
> 
> https://lore.kernel.org/all/[email-masked]/
> https://lore.kernel.org/all/13360982.O9o76ZdvQC@steina-w/
> https://lore.kernel.org/all/[email-masked]/
> https://lore.kernel.org/all/[email-masked]/

This is much simpler as it hard-codes the file name. I don't have a preference
on that, so
Acked-by: Alexander Stein <[email-masked]>

Thanks
Alexander

> ---
>  arch/arm/tools/gen-mach-types | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/tools/gen-mach-types b/arch/arm/tools/gen-mach-types
> index cbe1c33bb8710..65ec262b31e65 100644
> --- a/arch/arm/tools/gen-mach-types
> +++ b/arch/arm/tools/gen-mach-types
> @@ -24,7 +24,7 @@ NF == 3 {
>  
>  END	{
>  	  printf("/*\n");
> -	  printf(" * This was automagically generated from %s!\n", FILENAME);
> +	  printf(" * This was automagically generated from arch/arm/tools/gen-mach-types!\n");
>  	  printf(" * Do NOT edit\n");
>  	  printf(" */\n\n");
>  	  printf("#ifndef __ASM_ARM_MACH_TYPE_H\n");
> 
> ---
> base-commit: ba3e43a9e601636f5edb54e259a74f96ca3b8fd8
> change-id: 20260603-arm-remove-path-from-mach-types-h-a6f528d60e00
> 
> Best regards,
> 

-- 
TQ-Systems GmbH | Mühlstraße 2, Gut Delling | 82229 Seefeld, Germany
Amtsgericht München, HRB 105018
Geschäftsführer: Detlef Schneider, Rüdiger Stahl, Stefan Schneider
http://www.tq-group.com/