linux-kernel - Re: [PATCH v3 13/14] tools/nolibc: add __nolibc_static

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Message-ID: <aUkFqYpKAiiC33iU@1wt.eu>
Date: Mon, 22 Dec 2025 09:47:37 +0100
From: Willy Tarreau <w@....eu>
To: Thomas Weißschuh <linux@...ssschuh.net>
Cc: Shuah Khan <shuah@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v3 13/14] tools/nolibc: add __nolibc_static_assert()

Hi Thomas,

On Sat, Dec 20, 2025 at 02:55:57PM +0100, Thomas Weißschuh wrote:
> Add a wrapper for _Static_assert() to use within nolibc.
> While _Static_assert() itself was only standardized in C11,
> in GCC and clang dialects it is also available in older standards.
> 
> Link: https://lore.kernel.org/lkml/20251203192330.GA12995@1wt.eu/
> Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
> ---
>  tools/include/nolibc/compiler.h | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/tools/include/nolibc/compiler.h b/tools/include/nolibc/compiler.h
> index c9ffd0496dae..a8c7619dcdde 100644
> --- a/tools/include/nolibc/compiler.h
> +++ b/tools/include/nolibc/compiler.h
> @@ -63,4 +63,12 @@
>  #  define __nolibc_clang_version 0
>  #endif /* __clang__ */
>  
> +#if __STDC_VERSION__ >= 201112L || \
> +	__nolibc_gnuc_version >= __nolibc_version(4, 6, 0) || \
> +	__nolibc_clang_version >= __nolibc_version(3, 0, 0)
> +#  define __nolibc_static_assert(_t) _Static_assert(_t, "")
> +#else
> +#  define __nolibc_static_assert(_t)
> +#endif
> +

Yeah, that's clean this way, I like it!

Acked-by: Willy Tarreau <w@....eu>