linux-kernel - Re: [PATCH v2 08/16] selftests: Add headers target

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Message-ID: <0f8a6c7c-7490-4c12-875e-874bb8373f2c@arm.com>
Date: Fri, 28 Feb 2025 12:26:33 +0000
From: Vincenzo Frascino <vincenzo.frascino@....com>
To: Thomas Weißschuh <thomas.weissschuh@...utronix.de>,
 Kees Cook <kees@...nel.org>, Eric Biederman <ebiederm@...ssion.com>,
 Shuah Khan <shuah@...nel.org>, Nathan Chancellor <nathan@...nel.org>,
 Nick Desaulniers <ndesaulniers@...gle.com>, Bill Wendling
 <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>,
 Andy Lutomirski <luto@...nel.org>, Thomas Gleixner <tglx@...utronix.de>,
 Willy Tarreau <w@....eu>, Thomas Weißschuh
 <linux@...ssschuh.net>
Cc: "Jason A. Donenfeld" <Jason@...c4.com>,
 Christophe Leroy <christophe.leroy@...roup.eu>, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
 llvm@...ts.linux.dev
Subject: Re: [PATCH v2 08/16] selftests: Add headers target

On 26/02/2025 11:44, Thomas Weißschuh wrote:
> Some selftests need access to a full UAPI headers tree, for example when
> building with nolibc which heavily relies on UAPI headers.
> A reference to such a tree is available in the KHDR_INCLUDES variable,
> but there is currently no way to populate such a tree automatically.
> 
> Provide a target that the tests can depend on to get access to usable
> UAPI headers.
> 
> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>

Reviewed-by: Vincenzo Frascino <vincenzo.frascino@....com>

> ---
>  tools/testing/selftests/lib.mk | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
> index d6edcfcb5be832ddee4c3d34b5ad221e9295f878..5303900339292e618dee4fd7ff8a7c2fa3209a68 100644
> --- a/tools/testing/selftests/lib.mk
> +++ b/tools/testing/selftests/lib.mk
> @@ -228,4 +228,7 @@ $(OUTPUT)/%:%.S
>  	$(LINK.S) $^ $(LDLIBS) -o $@
>  endif
>  
> -.PHONY: run_tests all clean install emit_tests gen_mods_dir clean_mods_dir
> +headers:
> +	$(Q)$(MAKE) -C $(top_srcdir) headers
> +
> +.PHONY: run_tests all clean install emit_tests gen_mods_dir clean_mods_dir headers
> 

-- 
Regards,
Vincenzo