linux-kernel - Re: [PATCH v2 09/16] tools/nolibc: add limits.h shim header

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Message-ID: <608911a5-c0c9-4115-98a2-3e31b6b360af@arm.com>
Date: Fri, 28 Feb 2025 12:27:00 +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 09/16] tools/nolibc: add limits.h shim header

On 26/02/2025 11:44, Thomas Weißschuh wrote:
> limits.h is a widely used standard header.
> Missing it from nolibc requires adoption effort to port applications.
> 
> Add a shim header which includes the global nolibc.h header.
> It makes all nolibc symbols available.
> 
> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>

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

> ---
>  tools/include/nolibc/Makefile | 1 +
>  tools/include/nolibc/limits.h | 7 +++++++
>  2 files changed, 8 insertions(+)
> 
> diff --git a/tools/include/nolibc/Makefile b/tools/include/nolibc/Makefile
> index a1f55fb24bb38c1f49c653af5825e8bcc569a56d..c1299a053145786da89001a5f95f5527ffbe2fa4 100644
> --- a/tools/include/nolibc/Makefile
> +++ b/tools/include/nolibc/Makefile
> @@ -30,6 +30,7 @@ all_files := \
>  		crt.h \
>  		ctype.h \
>  		errno.h \
> +		limits.h \
>  		nolibc.h \
>  		signal.h \
>  		stackprotector.h \
> diff --git a/tools/include/nolibc/limits.h b/tools/include/nolibc/limits.h
> new file mode 100644
> index 0000000000000000000000000000000000000000..306d4141f4d245ca3f801f451745540b0f7294cd
> --- /dev/null
> +++ b/tools/include/nolibc/limits.h
> @@ -0,0 +1,7 @@
> +/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
> +/*
> + * Shim limits.h header for NOLIBC.
> + * Copyright (C) 2025 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
> + */
> +
> +#include "nolibc.h"
> 

-- 
Regards,
Vincenzo