From: Willy Tarreau <w@1wt.eu>
To: "Thomas Weißschuh" <linux@weissschuh.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] tools/nolibc: avoid call to wcslen() in _start_c() inserted by clang
Date: Sun, 19 Apr 2026 17:32:42 +0200 [thread overview]
Message-ID: <aeT1mrE7iy8BBPhl@1wt.eu> (raw)
In-Reply-To: <20260418-nolibc-wcslen-v1-1-671271b8ea63@weissschuh.net>
On Sat, Apr 18, 2026 at 12:31:54PM +0200, Thomas Weißschuh wrote:
> Clang may convert the loop to find _auxv into a call to wcslen() which
> is missing on nolibc. -fsanitize needs to be disabled for this to
> happen.
>
> Use the same pattern as in the nolibc strlen() implementation to avoid
> the function call generation.
>
> Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Compilers are always full of surprises!
Acked-by: Willy Tarreau <w@1wt.eu>
Willy
prev parent reply other threads:[~2026-04-19 15:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-18 10:31 [PATCH] tools/nolibc: avoid call to wcslen() in _start_c() inserted by clang Thomas Weißschuh
2026-04-19 15:32 ` Willy Tarreau [this message]
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