From: Jakub Jelinek <jakub@redhat.com>
To: Doug McNaught <doug@mcnaught.org>
Cc: Arjan van de Ven <arjanv@redhat.com>,
Linus Torvalds <torvalds@osdl.org>, Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>,
Andi Kleen <ak@suse.de>,
"Siddha, Suresh B" <suresh.b.siddha@intel.com>,
"Nakajima, Jun" <jun.nakajima@intel.com>
Subject: Re: [announce] [patch] NX (No eXecute) support for x86, 2.6.7-rc2-bk2
Date: Tue, 8 Jun 2004 04:46:16 -0400 [thread overview]
Message-ID: <20040608084616.GV4736@devserv.devel.redhat.com> (raw)
In-Reply-To: <87u0xtbq9y.fsf@asmodeus.mcnaught.org>
On Wed, Jun 02, 2004 at 05:31:37PM -0400, Doug McNaught wrote:
> Arjan van de Ven <arjanv@redhat.com> writes:
>
> > On Wed, Jun 02, 2004 at 02:13:13PM -0700, Linus Torvalds wrote:
> >>
> >>
> >> Just out of interest - how many legacy apps are broken by this? I assume
> >> it's a non-zero number, but wouldn't mind to be happily surprised.
> >
> > based on execshield in FC1.. about zero.
>
> IIRC, Lisp systems like CMUCL and SBCL (plus commercial Lisps) had
> problems with FC1 due to execshield. They tend to do things like
> compile code on the fly to heap memory and expect to be able to run
> it.
They will still work, as long as you don't recompile them with recent
toolchain.
When you recompile them, they either needs to be taught to DTRT (i.e.
use mmap with PROT_EXEC for executable stuff), or can be linked with
-Wl,-z,execstack to mark them as needing executable stack.
prelink package also contains execstack(8) utility which can be used
on already linked binaries/shared libraries.
Jakub
next prev parent reply other threads:[~2004-06-08 8:46 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-02 20:50 [announce] [patch] NX (No eXecute) support for x86, 2.6.7-rc2-bk2 Ingo Molnar
2004-06-02 21:00 ` Christoph Hellwig
2004-06-02 21:07 ` Ingo Molnar
2004-06-02 21:13 ` Linus Torvalds
2004-06-02 21:17 ` Arjan van de Ven
2004-06-02 21:31 ` Doug McNaught
2004-06-08 8:46 ` Jakub Jelinek [this message]
2004-06-03 1:12 ` Joel Becker
2004-06-03 1:27 ` Andi Kleen
2004-06-03 6:24 ` Arjan van de Ven
2004-06-03 20:37 ` jlnance
2004-06-03 7:21 ` Ingo Molnar
2004-06-03 12:44 ` Ingo Molnar
2004-06-03 15:54 ` Andi Kleen
2004-06-03 23:01 ` Andy Lutomirski
2004-06-03 23:08 ` Andi Kleen
2004-06-03 23:54 ` Andy Lutomirski
2004-06-04 0:05 ` Andy Lutomirski
2004-06-04 9:25 ` Ingo Molnar
2004-06-04 15:26 ` Andy Lutomirski
2004-06-04 15:36 ` Linus Torvalds
2004-06-04 15:41 ` Arjan van de Ven
2004-06-04 15:47 ` Linus Torvalds
2004-06-04 15:51 ` Arjan van de Ven
2004-06-04 16:02 ` Linus Torvalds
2004-06-04 16:13 ` Andi Kleen
2004-06-04 16:37 ` Arjan van de Ven
2004-06-04 16:40 ` Christoph Hellwig
2004-06-04 17:27 ` David Mosberger
2004-06-04 17:30 ` Andi Kleen
2004-06-08 9:07 ` Jakub Jelinek
2004-06-08 9:14 ` Andi Kleen
2004-06-08 9:19 ` Arjan van de Ven
2004-06-04 16:51 ` Ulrich Drepper
2004-06-08 17:15 ` Bill Davidsen
2004-06-04 18:11 ` Gerhard Mack
2004-06-04 18:12 ` Arjan van de Ven
2004-06-04 16:06 ` Ingo Molnar
2004-06-04 17:20 ` Ingo Molnar
2004-06-04 17:22 ` Ingo Molnar
2004-06-04 17:32 ` Ingo Molnar
2004-06-03 19:24 ` Suresh Siddha
2004-06-03 20:37 ` Andi Kleen
2004-06-03 22:58 ` Suresh Siddha
2004-06-03 23:06 ` Andi Kleen
2004-06-04 9:30 ` Ingo Molnar
2004-06-03 12:57 ` Brian Gerst
2004-06-04 9:39 ` Ingo Molnar
2004-06-04 10:41 ` Christoph Hellwig
2004-06-04 10:48 ` William Lee Irwin III
2004-06-03 16:21 ` Ulrich Drepper
2004-06-03 19:30 ` Kurt Garloff
2004-06-02 21:43 ` Andi Kleen
2004-06-03 0:11 ` Rusty Russell
2004-06-03 0:17 ` Jeff Garzik
2004-06-03 7:24 ` Ingo Molnar
2004-06-03 8:47 ` Ingo Molnar
2004-06-03 8:53 ` Ingo Molnar
2004-06-04 0:04 ` Rusty Russell
2004-06-03 9:07 ` Ingo Molnar
2004-06-03 14:36 ` Gerhard Mack
2004-06-03 16:22 ` Arjan van de Ven
2004-06-04 9:36 ` Ingo Molnar
2004-06-04 11:59 ` Stephen Wille Padnos
[not found] <22L0f-5Ci-11@gated-at.bofh.it>
[not found] ` <22O7J-8dw-11@gated-at.bofh.it>
[not found] ` <22Wf4-5Xv-23@gated-at.bofh.it>
2004-06-03 9:43 ` Andi Kleen
-- strict thread matches above, loose matches on Subject: below --
2004-06-04 18:01 Nakajima, Jun
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