linux-kernel - Re: [PATCH v5] printk: Userspace format enumeration support

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Message-ID: <f6f66233fbd670fef82a199ab0299489618cad81.camel@perches.com>
Date:   Fri, 16 Apr 2021 07:09:05 -0700
From:   Joe Perches <joe@...ches.com>
To:     Chris Down <chris@...isdown.name>, Petr Mladek <pmladek@...e.com>
Cc:     Rasmus Villemoes <linux@...musvillemoes.dk>,
        linux-kernel@...r.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        John Ogness <john.ogness@...utronix.de>,
        Johannes Weiner <hannes@...xchg.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kees Cook <keescook@...omium.org>, kernel-team@...com
Subject: Re: [PATCH v5] printk: Userspace format enumeration support

On Fri, 2021-04-16 at 14:56 +0100, Chris Down wrote:
> Any better suggestions? :-)

A gcc plugin that looks for functions marked __printf(fmt, pos)
so any const fmt is stored.