From: Andreas Schwab <schwab@suse.de>
To: Paul Mackerras <paulus@samba.org>
Cc: Albert Cahalan <acahalan@gmail.com>,
linuxppc-dev@ozlabs.org,
debian-powerpc <debian-powerpc@lists.debian.org>
Subject: Re: [PATCH] no-execute -- please test
Date: Mon, 14 Aug 2006 10:46:32 +0200 [thread overview]
Message-ID: <jehd0fso0n.fsf@sykes.suse.de> (raw)
In-Reply-To: <17631.62940.63888.908937@cargo.ozlabs.ibm.com> (Paul Mackerras's message of "Mon, 14 Aug 2006 14:02:36 +1000")
Paul Mackerras <paulus@samba.org> writes:
> Albert Cahalan writes:
>
>> If you want heap protection, change VM_DATA_DEFAULT_FLAGS32
>> in include/asm-powerpc/page.h to be like VM_STACK_DEFAULT_FLAGS.
>> I'd love to hear if anybody can get X to start with this change.
>
> In general I would expect dynamically-linked programs to fail unless
> you compile everything with gcc -msecure-plt.
X (before X.org 7) does it's own module loading that cannot cope with a
non-executable heap. X.org 7, on the other hand, uses dlopen now and
should work fine.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2006-08-14 8:46 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-14 3:20 [PATCH] no-execute -- please test Albert Cahalan
2006-08-14 4:00 ` Paul Mackerras
2006-08-14 4:41 ` Albert Cahalan
2006-08-14 23:34 ` Paul Mackerras
2006-08-16 23:55 ` Benjamin Herrenschmidt
2006-08-20 17:48 ` Albert Cahalan
2006-08-14 4:02 ` Paul Mackerras
2006-08-14 4:33 ` Albert Cahalan
2006-08-14 8:46 ` Andreas Schwab [this message]
2006-08-14 9:19 ` Michel Dänzer
2006-08-14 16:02 ` Albert Cahalan
2006-08-14 16:08 ` Albert Cahalan
2006-08-14 16:20 ` Michel Dänzer
2006-08-19 3:47 ` Albert Cahalan
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