From: Richard Henderson <rth@redhat.com>
To: Tom Rini <trini@kernel.crashing.org>
Cc: jtv <jtv@xs4all.nl>, Momchil Velikov <velco@fadata.bg>,
linux-kernel@vger.kernel.org, gcc@gcc.gnu.org,
linuxppc-dev@lists.linuxppc.org,
Franz Sirl <Franz.Sirl-kernel@lauterbach.com>,
Paul Mackerras <paulus@samba.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Corey Minyard <minyard@acm.org>
Subject: Re: [PATCH] C undefined behavior fix
Date: Wed, 2 Jan 2002 17:12:24 -0800 [thread overview]
Message-ID: <20020102171224.D10659@redhat.com> (raw)
In-Reply-To: <87g05py8qq.fsf@fadata.bg> <20020102190910.GG1803@cpe-24-221-152-185.az.sprintbbd.net> <20020102133632.C10362@redhat.com> <20020102220548.GL1803@cpe-24-221-152-185.az.sprintbbd.net> <20020102232320.A19933@xs4all.nl> <20020102231243.GO1803@cpe-24-221-152-185.az.sprintbbd.net> <20020103004514.B19933@xs4all.nl> <20020103000118.GR1803@cpe-24-221-152-185.az.sprintbbd.net> <20020102160739.A10659@redhat.com> <20020103001605.GS1803@cpe-24-221-152-185.az.sprintbbd.net>
In-Reply-To: <20020103001605.GS1803@cpe-24-221-152-185.az.sprintbbd.net>; from trini@kernel.crashing.org on Wed, Jan 02, 2002 at 05:16:05PM -0700
On Wed, Jan 02, 2002 at 05:16:05PM -0700, Tom Rini wrote:
> > Ignore strcpy. Yes, that's what visibly causing a failure here,
> > but the bug is in the funny pointer arithmetic. Leave that in
> > there and the compiler _will_ bite your ass sooner or later.
>
> Er, which part of the 'funny pointer arithmetic'?
What's currently inside RELOC.
> We need to do funny things here, and thus need a way to tell gcc to just
> do what we're saying.
While it's true that you have requirements on doing runtime
relocation, what you absolutely do not want to do is expose
this to gcc.
Hide it inside inline assembly if you must. Better is to
do your relocation before you enter C at all.
r~
next prev parent reply other threads:[~2002-01-03 1:13 UTC|newest]
Thread overview: 204+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-01 23:03 [PATCH] C undefined behavior fix Momchil Velikov
2002-01-01 23:43 ` Tom Rini
2002-01-02 6:54 ` Momchil Velikov
2002-01-02 15:39 ` Tom Rini
2002-01-02 15:50 ` Jakub Jelinek
2002-01-02 16:45 ` Paul Koning
2002-01-02 22:56 ` Paul Mackerras
2002-01-02 23:37 ` Momchil Velikov
2002-01-03 2:51 ` Paul Mackerras
2002-01-03 6:29 ` law
2002-01-03 13:16 ` Lars Brinkhoff
2002-01-04 9:05 ` Florian Weimer
2002-01-04 22:14 ` Paul Mackerras
2002-01-02 14:56 ` Joseph S. Myers
2002-01-02 10:29 ` Florian Weimer
2002-01-02 10:41 ` Momchil Velikov
2002-01-02 13:11 ` Jakub Jelinek
2002-01-02 15:54 ` Tom Rini
2002-01-02 11:28 ` Aaron Lehmann
2002-01-02 11:40 ` Momchil Velikov
2002-01-02 15:59 ` Tom Rini
2002-01-02 11:48 ` Alan Cox
2002-01-02 19:09 ` Tom Rini
2002-01-02 20:13 ` Joe Buck
2002-01-02 20:42 ` Tom Rini
2002-01-02 21:36 ` Richard Henderson
2002-01-02 22:05 ` Tom Rini
2002-01-02 22:23 ` jtv
2002-01-02 23:12 ` Tom Rini
2002-01-02 23:45 ` jtv
2002-01-03 0:01 ` Tom Rini
2002-01-03 0:07 ` Richard Henderson
2002-01-03 0:16 ` Tom Rini
2002-01-03 1:12 ` Richard Henderson [this message]
2002-01-03 0:20 ` jtv
2002-01-03 2:33 ` Paul Mackerras
2002-01-03 8:32 ` Richard Henderson
2002-01-03 10:10 ` Paul Mackerras
2002-01-03 22:41 ` Tim Hollebeek
2002-01-04 8:48 ` Florian Weimer
2002-01-03 10:03 ` Geert Uytterhoeven
2002-01-03 0:25 ` Alan Cox
2002-01-03 0:35 ` David Woodhouse
2002-01-03 2:10 ` Tom Rini
2002-01-03 22:39 ` Pavel Machek
2002-01-04 9:29 ` Paul Mackerras
2002-01-03 15:46 ` Edgar Toernig
2002-01-03 16:48 ` Momchil Velikov
2002-01-03 17:13 ` jtv
2002-01-03 21:26 ` Daniel Jacobowitz
2002-01-02 22:27 ` Richard Henderson
2002-01-02 22:35 ` Tom Rini
2002-01-02 22:44 ` Richard Henderson
2002-01-02 22:50 ` Tom Rini
2002-01-03 22:40 ` Pavel Machek
2002-01-04 8:42 ` Richard Henderson
2002-01-02 23:11 ` Paul Mackerras
2002-01-02 23:26 ` Tom Rini
2002-01-02 23:28 ` Momchil Velikov
2002-01-02 23:34 ` Tom Rini
2002-01-03 0:19 ` jtv
2002-01-03 0:29 ` Tom Rini
2002-01-03 1:03 ` jtv
2002-01-03 1:17 ` Tom Rini
2002-01-03 17:44 ` jtv
2002-01-03 4:08 ` Cameron Simpson
2002-01-03 4:32 ` Tom Rini
2002-01-04 8:42 ` [PATCH] " Florian Weimer
-- strict thread matches above, loose matches on Subject: below --
2002-01-02 10:02 Bernard Dautrevaux
2002-01-02 23:02 ` Paul Mackerras
2002-01-02 23:27 ` Momchil Velikov
2002-01-02 17:40 Petr Vandrovec
2002-01-02 22:24 ` David Woodhouse
2002-01-02 22:39 ` Joe Buck
2002-01-02 22:59 ` David Woodhouse
2002-01-03 18:44 ` Alexandre Oliva
2002-01-02 23:53 dewar
2002-01-02 23:59 ` Joe Buck
2002-01-03 3:12 ` Paul Mackerras
2002-01-03 15:45 ` Joe Buck
2002-01-03 0:12 dewar
2002-01-03 0:32 ` jtv
2002-01-06 19:37 ` Alexandre Oliva
2002-01-03 0:49 dewar
2002-01-03 10:05 Bernard Dautrevaux
2002-01-03 10:49 ` Paul Mackerras
2002-01-03 11:59 ` Lars Brinkhoff
2002-01-03 23:53 ` Paul Mackerras
2002-01-04 9:52 ` Lars Brinkhoff
2002-01-05 6:45 ` Paul Mackerras
2002-01-06 0:20 ` Lars Brinkhoff
2002-01-09 9:28 ` Fergus Henderson
2002-01-09 10:58 ` Gabriel Dos Reis
2002-01-03 10:35 Bernard Dautrevaux
2002-01-03 12:51 dewar
2002-01-03 13:28 dewar
2002-01-04 8:38 ` Florian Weimer
2002-01-04 11:35 ` Joseph S. Myers
2002-01-05 19:25 ` jkl
2002-01-05 19:37 ` Joseph S. Myers
2002-01-05 20:06 ` jkl
2002-01-05 21:42 ` Joseph S. Myers
2002-01-06 4:09 ` Paul Mackerras
2002-01-05 20:01 ` Florian Weimer
2002-01-05 20:17 ` jkl
2002-01-05 20:51 ` Florian Weimer
2002-01-04 12:14 dewar
2002-01-04 12:15 dewar
2002-01-04 22:43 dewar
2002-01-06 3:40 ` Paul Mackerras
2002-01-06 0:52 dewar
2002-01-06 4:26 dewar
2002-01-06 5:32 ` Paul Mackerras
2002-01-06 11:09 ` Momchil Velikov
2002-01-06 7:56 mike stump
2002-01-06 13:05 dewar
2002-01-06 13:41 ` Laurent Guerby
2002-01-06 13:07 dewar
2002-01-06 13:16 dewar
2002-01-06 13:22 ` Gabriel Dos Reis
2002-01-06 13:41 dewar
2002-01-06 16:58 ` Gabriel Dos Reis
2002-01-06 13:43 dewar
2002-01-06 13:55 ` Laurent Guerby
2002-01-06 16:22 dewar
2002-01-06 16:39 ` Alan Cox
2002-01-06 19:27 ` Laurent Guerby
2002-01-06 19:43 ` Alan Cox
2002-01-06 18:20 mike stump
2002-01-06 18:24 mike stump
2002-01-06 20:37 ` Gabriel Dos Reis
2002-01-06 21:59 ` Paul Mackerras
2002-01-06 22:19 ` Jakub Jelinek
2002-01-07 0:09 ` Tom Rini
2002-01-07 1:40 ` Alexandre Oliva
2002-01-06 18:37 mike stump
2002-01-06 19:29 dewar
2002-01-06 19:29 dewar
2002-01-06 19:32 dewar
2002-01-07 13:24 Bernard Dautrevaux
2002-01-07 21:49 ` jtv
2002-01-07 22:28 ` Tim Hollebeek
2002-01-07 22:16 ` jtv
2002-01-08 0:27 ` J.A. Magallon
2002-01-08 11:41 ` jtv
2002-01-08 12:36 ` Alexandre Oliva
2002-01-08 12:58 ` jtv
2002-01-09 19:47 ` Gérard Roudier
2002-01-09 20:44 ` jtv
2002-01-09 23:49 ` J.A. Magallon
2002-01-10 0:19 ` Peter Barada
2002-01-10 1:47 ` Fergus Henderson
2002-01-10 15:30 ` Peter Barada
2002-01-10 10:13 ` Matthias Benkmann
2002-01-10 10:44 ` Bernd Petrovitsch
2002-01-07 13:29 Bernard Dautrevaux
2002-01-07 18:38 mike stump
2002-01-07 19:17 Bernard Dautrevaux
2002-01-07 19:18 mike stump
2002-01-07 19:36 mike stump
2002-01-07 21:21 ` Theodore Tso
2002-01-08 0:19 ` Paul Mackerras
2002-01-08 1:02 ` Richard Henderson
2002-01-07 22:26 Tim McDaniel
2002-01-07 22:56 mike stump
2002-01-07 23:11 dewar
2002-01-07 23:12 dewar
2002-01-07 23:15 dewar
2002-01-07 23:20 dewar
2002-01-07 23:46 mike stump
2002-01-08 0:16 mike stump
2002-01-08 11:33 ` jtv
2002-01-08 9:44 Bernard Dautrevaux
2002-01-08 11:44 ` 'jtv'
2002-01-08 11:12 Bernard Dautrevaux
2002-01-11 9:52 ` Horst von Brand
2002-01-09 0:51 dewar
2002-01-09 1:19 dewar
2002-01-09 1:51 mike stump
2002-01-09 2:13 dewar
2002-01-09 2:18 dewar
2002-01-09 9:06 Bernard Dautrevaux
2002-01-09 9:25 ` Bernd Petrovitsch
2002-01-09 10:40 dewar
2002-01-09 10:41 Bernard Dautrevaux
2002-01-09 21:59 ` Gérard Roudier
2002-01-09 10:42 dewar
2002-01-09 19:53 mike stump
2002-01-09 20:12 ` Paul Koning
2002-01-09 20:08 dewar
2002-01-09 20:32 dewar
2002-01-09 21:43 ` Paul Koning
2002-01-09 21:54 dewar
2002-01-10 1:21 dewar
2002-01-10 4:37 ` Tim Hollebeek
2002-01-10 1:22 dewar
2002-01-10 2:16 dewar
2002-01-10 4:33 dewar
2002-01-10 9:03 Bernard Dautrevaux
2002-01-10 10:40 ` David Weinehall
2002-01-10 12:18 dewar
2002-01-10 12:37 ` Erik Trulsson
2002-01-10 15:27 ` Florian Weimer
2002-01-10 19:01 Bernard Dautrevaux
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