From: Siddhesh Poyarekar <siddhesh@gotplt.org>
To: Alejandro Colomar <alx.manpages@gmail.com>, GCC <gcc@gcc.gnu.org>
Cc: "Iker Pedrosa" <ipedrosa@redhat.com>,
"David Malcolm" <dmalcolm@redhat.com>,
"Florian Weimer" <fweimer@redhat.com>,
"Sam James" <sam@gentoo.org>, "Paul Eggert" <eggert@cs.ucla.edu>,
"Michael Kerrisk" <mtk.manpages@gmail.com>,
"Martin Uecker" <uecker@tugraz.at>,
"Jₑₙₛ Gustedt" <jens.gustedt@inria.fr>,
"Yann Droneaud" <ydroneaud@opteya.com>
Subject: Re: Missed warning (-Wuse-after-free)
Date: Fri, 17 Feb 2023 08:38:44 -0500 [thread overview]
Message-ID: <e8a6894b-f493-a147-9c9a-f83353896b84@gotplt.org> (raw)
In-Reply-To: <f54ba6cb-0edb-5637-6936-4855506c7eb2@gmail.com>
On 2023-02-17 06:22, Alejandro Colomar wrote:
> Hi Siddhesh,
>
> On 2/17/23 04:48, Siddhesh Poyarekar wrote:
>> On 2023-02-16 10:15, David Malcolm via Gcc wrote:
>>> I'm not convinced that it's useful to the end-user to warn about the
>>> "use of q itself" case.
>>
>> FWIW, -Wuse-after-free=3 already should do this:
>
> Thanks! It works. I would have expected such a warning to be included
> in -Wextra. Does it have any false positives (or maybe too many false
> negatives?) that make it unsuitable for -Wextra?
I don't know why it isn't enabled in -Wextra, it seems like the right
thing to do.
Sid
next prev parent reply other threads:[~2023-02-17 13:38 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-16 14:35 Alejandro Colomar
2023-02-16 15:15 ` David Malcolm
2023-02-17 1:04 ` Alejandro Colomar
2023-02-17 1:05 ` Alejandro Colomar
2023-02-17 1:56 ` Sam James
2023-02-17 8:12 ` Martin Uecker
2023-02-17 11:35 ` Alejandro Colomar
2023-02-17 13:34 ` Andreas Schwab
2023-02-17 13:48 ` Martin Uecker
2023-02-23 19:23 ` Alex Colomar
2023-02-23 19:57 ` Martin Uecker
2023-02-24 0:02 ` Alex Colomar
2023-02-24 1:21 ` Serge E. Hallyn
2023-02-24 1:42 ` Alex Colomar
2023-02-24 3:01 ` Peter Lafreniere
2023-02-24 8:52 ` Martin Uecker
2023-02-24 8:43 ` Martin Uecker
2023-02-24 16:10 ` Serge E. Hallyn
2023-02-24 8:36 ` Martin Uecker
2023-02-24 16:01 ` Serge E. Hallyn
2023-02-24 16:37 ` Martin Uecker
2023-02-17 3:48 ` Siddhesh Poyarekar
2023-02-17 11:22 ` Alejandro Colomar
2023-02-17 13:38 ` Siddhesh Poyarekar [this message]
2023-02-17 14:01 ` Mark Wielaard
2023-02-17 14:06 ` Siddhesh Poyarekar
2023-02-17 21:20 ` [PATCH] Make -Wuse-after-free=3 the default one in -Wall Alejandro Colomar
2023-02-17 21:39 ` Siddhesh Poyarekar
2023-02-17 21:41 ` Siddhesh Poyarekar
2023-02-17 22:58 ` Alejandro Colomar
2023-02-17 23:03 ` Siddhesh Poyarekar
2023-02-17 11:24 ` Missed warning (-Wuse-after-free) Jonathan Wakely
2023-02-17 11:43 ` Alejandro Colomar
2023-02-17 12:04 ` Jonathan Wakely
2023-02-17 12:53 ` Siddhesh Poyarekar
2023-02-17 14:10 ` Jonathan Wakely
2023-02-17 13:44 ` David Malcolm
2023-02-17 14:01 ` Siddhesh Poyarekar
2023-02-17 8:49 ` Yann Droneaud
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