From: Eli Zaretskii <eliz@gnu.org>
To: marcinjaczewski86@gmail.com
Cc: gcc@gcc.gnu.org
Subject: Re: More C type errors by default for GCC 14
Date: Wed, 10 May 2023 17:19:48 +0300 [thread overview]
Message-ID: <835y908e0r.fsf@gnu.org> (raw)
In-Reply-To: <CACZhb0_8BZstujNLE4Cvt7_3vHHdKZviHD-QDruZLYFJffVHEg@mail.gmail.com> (message from Marcin Jaczewski on Wed, 10 May 2023 14:41:40 +0200)
> From: Marcin Jaczewski <marcinjaczewski86@gmail.com>
> Date: Wed, 10 May 2023 14:41:40 +0200
>
> Did you even check if the compiler outpost is still correct?
Yes.
> You mention "validations and verifications", do you do the same
> with the new compiler?
Yes. But that is a fraction of the effort needed when the source
changes.
> If you can't touch code then you SHOULD not upgrade the compiler.
As I tried to explain, this is not really possible, unless the entire
system is also kept without any changes, which is also impossible,
because hardware gets old and needs to be replaced, and newer hardware
doesn't support old systems.
> Any big project (like Linux) shows these two rules are critical,
> there were multiple cases of security bugs caused by subtle change
> in behavior of the compiler.
> Compiling very old code is lability if nobody knows how it should work and
> nobody maintains it. Who can give you guarantee that the result is correct?
> Very old programs should even by default reject new compilers by default until
> someone does not check if it correctly compiles on new compilers.
This is all true, but the same problems exist even if the programs
don't use outdated C dialect. So these issues are independent, almost
orthogonal to the issue at hand.
next prev parent reply other threads:[~2023-05-10 14:18 UTC|newest]
Thread overview: 243+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-10 12:41 Marcin Jaczewski
2023-05-10 14:19 ` Eli Zaretskii [this message]
-- strict thread matches above, loose matches on Subject: below --
2023-05-10 13:10 Basile Starynkevitch
2023-05-10 14:20 ` David Brown
2023-05-09 12:15 Florian Weimer
2023-05-09 14:16 ` Dave Blanchard
2023-05-09 15:03 ` David Edelsohn
2023-05-09 15:07 ` Sam James
2023-05-09 15:35 ` Dave Blanchard
2023-05-09 15:58 ` Jonathan Wakely
2023-05-09 16:26 ` Arsen Arsenović
2023-05-09 15:14 ` Jonathan Wakely
2023-05-09 15:22 ` Dave Blanchard
2023-05-09 16:38 ` Arsen Arsenović
2023-05-09 16:57 ` Eli Zaretskii
2023-05-09 17:05 ` Sam James
2023-05-09 18:55 ` Eli Zaretskii
2023-05-09 17:15 ` Jonathan Wakely
2023-05-09 19:04 ` Eli Zaretskii
2023-05-09 19:07 ` Jakub Jelinek
2023-05-09 19:22 ` Eli Zaretskii
2023-05-09 20:13 ` David Edelsohn
2023-05-09 20:21 ` Arsen Arsenović
2023-05-10 2:38 ` Eli Zaretskii
2023-05-10 8:36 ` Arsen Arsenović
2023-05-10 11:52 ` Eli Zaretskii
2023-05-10 11:56 ` Jonathan Wakely
2023-05-10 12:25 ` Eli Zaretskii
2023-05-10 12:30 ` Jonathan Wakely
2023-05-10 12:44 ` Eli Zaretskii
2023-05-15 12:28 ` Richard Earnshaw (lists)
2023-05-15 20:17 ` Eric Gallager
2023-05-16 7:05 ` Florian Weimer
2023-05-16 15:56 ` Jason Merrill
2023-05-09 20:40 ` Jonathan Wakely
2023-05-09 22:27 ` David Edelsohn
2023-05-09 22:37 ` Joel Sherrill
2023-05-09 22:45 ` Jonathan Wakely
2023-05-10 10:40 ` Eric Gallager
2023-05-10 10:45 ` Sam James
2023-05-10 10:56 ` Neal Gompa
2023-05-10 12:06 ` Eli Zaretskii
2023-05-10 12:10 ` Neal Gompa
2023-05-10 12:41 ` Eli Zaretskii
2023-05-10 10:48 ` Jonathan Wakely
2023-05-10 10:51 ` Jonathan Wakely
2023-05-10 12:00 ` Eli Zaretskii
2023-05-10 12:42 ` Sam James
2023-05-10 15:10 ` Joel Sherrill
2023-05-10 15:14 ` Jakub Jelinek
2023-05-10 16:36 ` Joel Sherrill
2023-05-10 16:44 ` Jakub Jelinek
2023-05-10 17:05 ` Jonathan Wakely
2023-05-10 18:37 ` James K. Lowden
2023-05-10 23:26 ` Jonathan Wakely
2023-05-11 18:47 ` Jason Merrill
2023-05-10 23:33 ` Sam James
2023-05-11 5:48 ` Eli Zaretskii
2023-05-11 2:28 ` Po Lu
2023-05-11 2:09 ` Po Lu
2023-05-11 2:14 ` Sam James
2023-05-11 2:23 ` Po Lu
2023-05-11 3:14 ` Eli Schwartz
2023-05-11 3:56 ` Po Lu
2023-05-11 4:46 ` Eli Schwartz
2023-05-11 4:49 ` Eli Schwartz
2023-05-11 6:23 ` Po Lu
2023-05-11 6:18 ` Po Lu
2023-05-11 22:41 ` Eli Schwartz
2023-05-12 2:08 ` Po Lu
2023-05-12 3:07 ` Eli Schwartz
2023-05-12 5:57 ` Po Lu
2023-05-12 11:05 ` Gabriel Ravier
2023-05-12 13:53 ` Po Lu
2023-05-12 14:03 ` Jonathan Wakely
2023-05-14 12:35 ` Mark Wielaard
2023-05-12 6:56 ` Eli Zaretskii
2023-05-12 7:28 ` Jonathan Wakely
2023-05-12 10:36 ` Eli Zaretskii
2023-05-12 13:19 ` Po Lu
2023-05-12 13:25 ` Gabriel Ravier
2023-05-13 0:45 ` Po Lu
2023-05-13 5:30 ` Thomas Koenig
2023-05-13 5:53 ` Po Lu
2023-05-14 5:10 ` Eli Schwartz
2023-05-14 5:38 ` Po Lu
2023-05-14 9:46 ` David Brown
2023-05-14 10:21 ` Jonathan Wakely
2023-05-14 10:23 ` Jonathan Wakely
2023-05-14 5:08 ` Eli Schwartz
2023-05-14 5:28 ` Po Lu
2023-05-14 5:56 ` Eli Schwartz
2023-05-14 11:55 ` Po Lu
2023-05-14 12:22 ` Arsen Arsenović
2023-05-15 1:05 ` Po Lu
2023-05-14 6:03 ` Eli Schwartz
2023-05-14 8:47 ` Jonathan Wakely
2023-05-14 12:05 ` Po Lu
2023-05-14 12:48 ` Nicholas Vinson
2023-05-14 10:29 ` David Brown
2023-05-12 15:51 ` Jason Merrill
2023-05-17 10:06 ` Florian Weimer
2023-05-12 11:26 ` David Brown
2023-05-11 6:24 ` Eli Zaretskii
2023-05-11 22:43 ` Eli Schwartz
2023-05-12 2:38 ` Po Lu
2023-05-12 2:55 ` Jason Merrill
2023-05-12 6:01 ` Po Lu
2023-05-12 6:40 ` Jonathan Wakely
2023-05-12 13:23 ` Po Lu
2023-05-12 10:49 ` Pedro Alves
2023-05-12 13:26 ` Po Lu
2023-05-12 11:55 ` Eli Schwartz
2023-05-12 13:54 ` Po Lu
2023-05-12 6:49 ` Eli Zaretskii
2023-05-12 2:56 ` Sam James
2023-05-12 6:03 ` Po Lu
2023-05-12 3:06 ` Sam James
2023-05-12 6:25 ` Eli Zaretskii
2023-05-12 11:23 ` Gabriel Ravier
2023-05-11 6:12 ` Eli Zaretskii
2023-05-11 7:04 ` Jonathan Wakely
2023-05-11 22:30 ` Eli Schwartz
2023-05-11 22:35 ` Sam James
2023-05-12 2:40 ` Po Lu
2023-05-12 2:52 ` Sam James
2023-05-12 5:32 ` Po Lu
2023-05-12 2:39 ` Po Lu
2023-05-12 3:18 ` Eli Schwartz
2023-05-12 6:17 ` Eli Zaretskii
2023-05-11 7:59 ` David Brown
2023-05-09 21:00 ` Thomas Koenig
2023-05-09 21:17 ` Arsen Arsenović
2023-05-10 13:57 ` Florian Weimer
2023-05-10 11:00 ` David Brown
2023-05-11 10:49 ` James K. Lowden
2023-05-11 1:38 ` Po Lu
2023-05-11 1:43 ` Sam James
2023-05-11 2:20 ` Po Lu
2023-05-09 20:57 ` Florian Weimer
2023-05-10 2:33 ` Eli Zaretskii
2023-05-10 8:04 ` Jonathan Wakely
2023-05-10 8:46 ` Richard Biener
2023-05-10 12:26 ` Florian Weimer
2023-05-10 11:30 ` Eli Zaretskii
2023-05-10 12:03 ` Jakub Jelinek
2023-05-10 12:36 ` Eli Zaretskii
2023-05-10 12:41 ` Gabriel Ravier
2023-05-10 14:14 ` Eli Zaretskii
2023-05-10 14:22 ` Jakub Jelinek
2023-05-10 15:30 ` Eli Zaretskii
2023-05-10 16:02 ` Jakub Jelinek
2023-05-10 16:31 ` Eli Zaretskii
2023-05-10 16:33 ` Richard Biener
2023-05-10 16:57 ` Eli Zaretskii
2023-05-10 17:08 ` Joseph Myers
2023-05-10 18:18 ` Eli Zaretskii
2023-05-12 15:02 ` Florian Weimer
2023-05-12 17:52 ` Florian Weimer
2023-05-12 17:55 ` Gabriel Ravier
2023-05-12 18:00 ` Florian Weimer
2023-05-12 18:08 ` Alexander Monakov
2023-05-12 18:14 ` Florian Weimer
2023-05-15 12:51 ` Michael Matz
2023-05-16 8:55 ` Florian Weimer
2023-05-16 10:39 ` Alexander Monakov
2023-05-16 11:01 ` Jakub Jelinek
2023-05-16 11:09 ` Jonathan Wakely
2023-05-16 11:15 ` Florian Weimer
2023-05-12 19:44 ` Joseph Myers
2023-05-12 20:43 ` Florian Weimer
2023-05-12 20:18 ` Jason Merrill
2023-05-12 20:57 ` Florian Weimer
2023-05-12 21:20 ` Sam James
2023-05-12 21:21 ` Sam James
2023-05-12 21:37 ` Florian Weimer
2023-05-12 21:47 ` Sam James
2023-05-12 21:59 ` Florian Weimer
2023-05-10 15:58 ` David Brown
2023-05-10 16:28 ` Eli Zaretskii
2023-05-11 6:52 ` David Brown
2023-05-11 7:39 ` Eli Zaretskii
2023-05-10 14:31 ` Thomas Koenig
2023-05-10 15:37 ` Eli Zaretskii
2023-05-11 2:38 ` Po Lu
2023-05-11 7:38 ` Arsen Arsenović
2023-05-11 8:31 ` Po Lu
2023-05-11 8:44 ` Arsen Arsenović
2023-05-11 9:28 ` Po Lu
2023-05-11 21:10 ` Arsen Arsenović
2023-05-12 1:41 ` Po Lu
2023-05-11 10:35 ` Eli Zaretskii
2023-05-11 19:25 ` Arsen Arsenović
2023-05-12 2:36 ` Po Lu
2023-05-12 12:30 ` Gabriel Ravier
2023-05-12 13:56 ` Po Lu
2023-05-12 7:53 ` Eli Zaretskii
2023-05-12 8:15 ` Jakub Jelinek
2023-05-12 10:40 ` Eli Zaretskii
2023-05-12 8:45 ` Christian Groessler
2023-05-12 10:14 ` Jonathan Wakely
2023-05-12 9:11 ` Thomas Koenig
2023-05-11 8:53 ` Jonathan Wakely
2023-05-11 9:29 ` Po Lu
2023-05-10 8:49 ` David Brown
2023-05-10 11:37 ` Eli Zaretskii
2023-05-10 11:49 ` Jonathan Wakely
2023-05-10 12:22 ` Eli Zaretskii
2023-05-10 13:30 ` David Brown
2023-05-10 14:39 ` Eli Zaretskii
2023-05-10 15:21 ` Paul Koning
2023-05-10 16:20 ` David Brown
2023-05-10 16:48 ` Eli Zaretskii
2023-05-10 12:32 ` Sam James
2023-05-10 12:47 ` Eli Zaretskii
2023-05-09 19:33 ` Arsen Arsenović
2023-05-09 15:25 ` David Edelsohn
2023-05-11 1:25 ` Po Lu
2023-05-11 1:30 ` Sam James
2023-05-11 1:33 ` Sam James
2023-05-11 2:18 ` Po Lu
2023-05-11 6:44 ` Jonathan Wakely
2023-05-11 8:32 ` Po Lu
2023-05-11 8:52 ` Jonathan Wakely
2023-05-11 7:36 ` Arsen Arsenović
2023-05-11 8:23 ` Po Lu
2023-05-09 18:22 ` Florian Weimer
2023-05-11 21:32 ` Segher Boessenkool
2023-05-09 15:16 ` Richard Biener
2023-05-09 16:05 ` Jakub Jelinek
2023-05-09 16:11 ` Sam James
2023-05-09 16:13 ` David Edelsohn
[not found] ` <BBE9950C-28AA-4A1C-A4C5-7F486538004E@gmail.com>
2023-05-09 16:44 ` Florian Weimer
2023-05-09 16:58 ` Ian Lance Taylor
2023-05-09 17:08 ` Jason Merrill
2023-05-09 17:16 ` Sam James
2023-05-09 16:59 ` Florian Weimer
2023-05-09 17:07 ` Sam James
2023-05-09 17:35 ` Florian Weimer
2023-05-12 9:33 ` Martin Jambor
2023-05-12 12:30 ` Jakub Jelinek
2023-05-15 12:46 ` Michael Matz
2023-05-15 13:14 ` Richard Earnshaw (lists)
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