linux-kernel - Re: [PATCH 1/2] tools/nolibc: support left-aligned printing in printf

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Message-ID: <aXnAklSxPaaMIb3X@1wt.eu>
Date: Wed, 28 Jan 2026 08:53:54 +0100
From: Willy Tarreau <w@....eu>
To: "licheng.li" <im.lechain@...il.com>
Cc: Thomas Weißschuh <linux@...ssschuh.net>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] tools/nolibc: support left-aligned printing in printf

On Wed, Jan 28, 2026 at 08:47:28AM +0100, Willy Tarreau wrote:
> On Mon, Jan 26, 2026 at 11:10:37AM +0800, licheng.li wrote:
> > From: Cheng Li <im.lechain@...il.com>
> > 
> > Currently, __nolibc_printf() in nolibc does not support the '-' flag
> > for left alignment. This limits the ability to format tabular output
> > nicely.
> > 
> > This patch adds support for the '-' flag. The implementation is kept
> > minimal to minimize the binary size impact.

Since your patch also adds support for the '0' flag to left-pad
with zeroes, this should be mentioned in the commit message.

thanks,
Willy