From: Jake Moilanen <moilanen@austin.ibm.com>
To: Alan Modra <amodra@bigpond.net.au>
Cc: paulus@samba.org, akpm@osdl.org, linuxppc64-dev@ozlabs.org,
linux-kernel@vger.kernel.org, anton@samba.org,
olof@austin.ibm.com, benh@kernel.crashing.org
Subject: Re: [PATCH 1/2] No-exec support for ppc64
Date: Tue, 15 Mar 2005 17:17:04 -0600 [thread overview]
Message-ID: <20050315171704.08f3057a.moilanen@austin.ibm.com> (raw)
In-Reply-To: <20050315224836.GD21148@bubble.modra.org>
On Wed, 16 Mar 2005 09:18:36 +1030
Alan Modra <amodra@bigpond.net.au> wrote:
> On Tue, Mar 15, 2005 at 03:51:35PM -0600, Jake Moilanen wrote:
> > I believe the problem is that the last PT_LOAD entry does not have the
> > correct size, and we only mmap up to the sbss. The .sbss, .plt, and
> > .bss do not get mmapped with the section.
>
> Huh? .sbss, .plt and .bss have no file contents, so of course p_filesz
> doesn't cover them.
Your right, those shouldn't be mmapped.
set_brk() call is called on sbss, plt and bss. There needs to be some
method to set execute permission, on those pieces as well. Currently it
has no concept of what permission should be set.
Jake
next prev parent reply other threads:[~2005-03-15 23:26 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-08 22:59 [PATCH 0/2] " Jake Moilanen
2005-03-08 23:08 ` [PATCH 1/2] " Jake Moilanen
2005-03-10 3:22 ` Olof Johansson
2005-03-10 22:25 ` Jake Moilanen
2005-03-14 10:13 ` Paul Mackerras
2005-03-14 21:51 ` Jake Moilanen
2005-03-14 22:18 ` Paul Mackerras
2005-03-15 21:51 ` Jake Moilanen
2005-03-15 22:48 ` Alan Modra
2005-03-15 23:17 ` Jake Moilanen [this message]
2005-03-16 6:10 ` Paul Mackerras
2005-03-16 21:45 ` Jake Moilanen
2005-03-08 23:13 ` [PATCH 2/2] " Jake Moilanen
2005-03-09 3:02 ` Benjamin Herrenschmidt
2005-03-10 3:25 ` Olof Johansson
2005-03-10 7:15 ` Benjamin Herrenschmidt
2005-03-10 22:27 ` Jake Moilanen
2005-03-10 22:44 ` Benjamin Herrenschmidt
2005-03-11 14:01 ` Jake Moilanen
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