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From: Jamie Lokier <jamie@shareable.org>
To: davidm@hpl.hp.com
Cc: linux-ia64@linuxia64.org, "Siddha,
	Suresh B" <suresh.b.siddha@intel.com>,
	Andrew Morton <akpm@osdl.org>, Kurt Garloff <garloff@suse.de>,
	linux-kernel@vger.kernel.org, mingo@redhat.com
Subject: Re: [PATCH] (IA64) Fix ugly __[PS]* macros in <asm-ia64/pgtable.h>
Date: Wed, 14 Apr 2004 22:05:38 +0100	[thread overview]
Message-ID: <20040414210538.GG12105@mail.shareable.org> (raw)
In-Reply-To: <16509.39308.8764.219@napali.hpl.hp.com>

David Mosberger wrote:
> No, Alpha Linux didn't map data without execute permission.

That was true from Linux 1.1.67 (when Alpha was introduced) to 1.1.84
(when __[PS]* was introduced).  I'm not sure the Alpha target even
worked during those versions.  Since Linux 1.1.84, it has mapped pages
on the Alpha without execute permission: the _PAGE_FOE (fault on exec)
bit is set for mappings which don't have PROT_EXEC.

Btw, they used PAGE_EXECONLY in those days :)

-- Jamie

  reply	other threads:[~2004-04-14 21:08 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-14  7:28 Non-Exec stack patches Siddha, Suresh B
2004-04-14  8:23 ` Jamie Lokier
2004-04-14  8:35   ` PowerPC exec page protection Jamie Lokier
2004-04-14  8:44     ` Anton Blanchard
2004-04-14  9:35       ` Jamie Lokier
2004-04-14 11:37   ` [PATCH] (IA64) Fix ugly __[PS]* macros in <asm-ia64/pgtable.h> Jamie Lokier
2004-04-14 16:07     ` David Mosberger
2004-04-14 18:46       ` Jamie Lokier
2004-04-14 19:02         ` David Mosberger
2004-04-14 19:14           ` Jamie Lokier
2004-04-14 19:28           ` Jamie Lokier
2004-04-14 20:05             ` David Mosberger
2004-04-14 21:05               ` Jamie Lokier [this message]
2004-04-14 22:34                 ` David Mosberger
2004-04-15 15:26                   ` Jamie Lokier
2004-04-15 17:45                     ` David Mosberger
2004-04-14  9:47 ` Non-Exec stack patches Jamie Lokier
2004-04-14 18:30   ` Kurt Garloff
2004-04-14 20:54     ` Jeff Dike
2004-04-14 18:35 ` Kurt Garloff

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