From: Florian Weimer <fweimer@redhat.com>
To: Andreas Schwab <schwab@suse.de>
Cc: Siddhesh Poyarekar <siddhesh@gotplt.org>,
Sergey Bugaev <bugaevc@gmail.com>,
libc-alpha@sourceware.org
Subject: Re: [RFC PATCH 1/1] io: Add FORTIFY_SOURCE check for fcntl arguments
Date: Wed, 24 May 2023 14:18:10 +0200 [thread overview]
Message-ID: <87h6s1x6rh.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <mvmfs7mdj26.fsf@suse.de> (Andreas Schwab's message of "Wed, 24 May 2023 14:12:49 +0200")
* Andreas Schwab:
> On Mai 24 2023, Siddhesh Poyarekar wrote:
>
>> Please be sure to make the _Generic bits conditional on __USE_ISOC11.
>
> That's not enough. GCC 4.7 supports C11, but _Generic has only been
> added in GCC 4.9.
We also generally do not prevent the use of compiler extensions in
strict feature modes. I think this should use a compiler version check
and maybe a fallback check against C17 compiler support if we do not
need any extensions (assuming that all C17 compilers implement _Generic,
so that an exception like the one you mentioned for GCC does not apply
vis-a-vis C17).
Thanks,
Florian
next prev parent reply other threads:[~2023-05-24 12:18 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-19 21:30 [RFC PATCH 0/1] Attempt to detect missing fcntl argument at compile time Sergey Bugaev
2023-05-19 21:30 ` [RFC PATCH 1/1] io: Add FORTIFY_SOURCE check for fcntl arguments Sergey Bugaev
2023-05-19 21:55 ` Joseph Myers
2023-05-20 11:46 ` Sergey Bugaev
2023-05-20 18:21 ` [RFC PATCH] debug: Add tests for fortified fcntl () Sergey Bugaev
2023-05-23 18:40 ` Adhemerval Zanella Netto
2023-05-23 19:19 ` Sergey Bugaev
2023-05-23 19:48 ` Adhemerval Zanella Netto
2023-05-24 7:15 ` Sergey Bugaev
2023-05-24 12:15 ` Adhemerval Zanella Netto
2023-05-23 19:09 ` [RFC PATCH 1/1] io: Add FORTIFY_SOURCE check for fcntl arguments Adhemerval Zanella Netto
2023-05-23 19:43 ` Sergey Bugaev
2023-05-23 19:56 ` Adhemerval Zanella Netto
2023-05-23 20:24 ` Sergey Bugaev
2023-05-23 20:44 ` Sergey Bugaev
2023-05-24 12:04 ` Adhemerval Zanella Netto
2023-05-23 19:15 ` Siddhesh Poyarekar
2023-05-23 20:01 ` Sergey Bugaev
2023-05-23 20:06 ` Sergey Bugaev
2023-05-23 21:46 ` Florian Weimer
2023-05-24 7:31 ` Sergey Bugaev
2023-05-24 8:29 ` Florian Weimer
2023-05-24 10:51 ` Sergey Bugaev
2023-05-24 11:18 ` Florian Weimer
2023-05-24 11:46 ` Siddhesh Poyarekar
2023-05-24 12:12 ` Andreas Schwab
2023-05-24 12:18 ` Florian Weimer [this message]
2023-05-24 12:37 ` Sergey Bugaev
2023-05-24 12:45 ` Florian Weimer
2023-05-24 13:02 ` Sergey Bugaev
2023-05-24 13:18 ` Florian Weimer
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