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Date: Mon, 09 Dec 2013 13:49:08 -0800
From: "H. Peter Anvin" <hpa@zytor.com>
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To: "H.J. Lu" <hjl.tools@gmail.com>, Jiri Kosina <jkosina@suse.cz>
CC: LKML <linux-kernel@vger.kernel.org>, Josh Boyer <jwboyer@redhat.com>
Subject: Re: [PATCH] binfmt_elf: fix PIE load with randomization disabled
References: <CAMe9rOo9sUQiusm8u=eFDnxYz37Cczd+97M9in=P2mNWXpH5pQ@mail.gmail.com>	<alpine.LNX.2.00.1312092154350.24835@pobox.suse.cz>	<CAMe9rOr06QeTGe4OC5_JYtfdziYj8NsRgS5=arEJY3BTqeLMVg@mail.gmail.com>	<alpine.LNX.2.00.1312092210280.24835@pobox.suse.cz> <CAMe9rOrDmtHXZ1cA1or_XkktSPguDnH8sNLGM_oxj7bcsek4ww@mail.gmail.com>
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> 
>> PT_LOAD being non-zero causing randomization to be turned off seems like
>> quite unexpected behavior to me, with a great potential to cause a lot of
>> confusion.
> 
> There should be no difference between dynamic executable and PIE
> with non-zero vaddr when choosing where to load them.
> 

Why is that?  It would seem to be a big difference between a relocatable
binary (PIE) and one with a load address fixed at link time.

	-hpa