From: Jonathan Nieder <jrnieder@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: Thomas Gummerer <t.gummerer@gmail.com>, Jeff King <peff@peff.net>,
git@vger.kernel.org, Josh Steadmon <steadmon@google.com>,
Masaya Suzuki <masayasuzuki@google.com>
Subject: Re: [PATCH] config.mak.dev: add -Wformat
Date: Thu, 3 Jan 2019 10:54:27 -0800 [thread overview]
Message-ID: <20190103185427.GA237830@google.com> (raw)
In-Reply-To: <xmqqa7khisue.fsf@gitster-ct.c.googlers.com>
Hi,
Junio C Hamano wrote:
> I think it is a good idea to give fallback/redundancy for this
> case. I do not have strong opinion between -Wall and -Wformat,
> but I'd probably vote for the former if pressed.
>
> -- >8 --
> From: Thomas Gummerer <t.gummerer@gmail.com>
> Date: Fri, 12 Oct 2018 19:40:37 +0100
> Subject: [PATCH] config.mak.dev: add -Wformat
>
> 801fa63a90 ("config.mak.dev: add -Wformat-security", 2018-09-08)
> added the "-Wformat-security" to the flags set in config.mak.dev.
> In the gcc man page this is documented as:
>
> If -Wformat is specified, also warn about uses of format
> functions that represent possible security problems. [...]
>
> The commit did however not add the "-Wformat" flag, but instead
> relied on the fact that "-Wall" is set in the Makefile by default
> and that "-Wformat" is part of "-Wall".
>
> Unfortunately, those who use config.mak.autogen generated with the
> autoconf to configure toolchain do *not* get "-Wall" in their CFLAGS
> and the added -Wformat-security had no effect. Worse yet, newer
> versions of gcc (gcc 8.2.1 in this particular case) warn about the
> lack of "-Wformat" and thus compilation fails only with this option
> set.
>
> We could fix it by adding "-Wformat", but in general we do want all
> checks included in "-Wall", so let's add it to config.mak.dev to
> cover more cases.
>
> Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
> Helped-by: Jeff King <peff@peff.net>
> Helped-by: Jonathan Nieder <jrnieder@gmail.com>
> [jc: s/-Wformat/-Wall/]
> Signed-off-by: Junio C Hamano <gitster@pobox.com>
> ---
> config.mak.dev | 1 +
> 1 file changed, 1 insertion(+)
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Thanks for tying up this loose end.
next prev parent reply other threads:[~2019-01-03 18:54 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-12 18:40 [PATCH] config.mak.dev: add -Wformat Thomas Gummerer
2018-10-12 18:45 ` Jeff King
2018-10-12 18:54 ` Jonathan Nieder
2018-10-12 19:11 ` Jeff King
2018-10-12 19:15 ` Thomas Gummerer
2018-12-27 18:59 ` Jonathan Nieder
2019-01-03 16:55 ` Junio C Hamano
2019-01-03 18:54 ` Jonathan Nieder [this message]
2019-01-06 18:17 ` Thomas Gummerer
2019-01-07 17:04 ` Junio C Hamano
2019-01-07 21:16 ` Jonathan Nieder
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