linux-kernel - Re: [PATCH] binfmt_elf: fix PIE load with randomization disabled

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Message-ID: <52A63BF3.1000608@zytor.com>
Date:	Mon, 09 Dec 2013 13:53:55 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"H.J. Lu" <hjl.tools@...il.com>
CC:	Jiri Kosina <jkosina@...e.cz>, LKML <linux-kernel@...r.kernel.org>,
	Josh Boyer <jwboyer@...hat.com>
Subject: Re: [PATCH] binfmt_elf: fix PIE load with randomization disabled

On 12/09/2013 01:52 PM, H.J. Lu wrote:
>>
>> 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.
>>
> 
> PIE with non-zero vaddr should be loaded at non-zero
> vaddr.  Otherwise, PIE may not work as expected.
> 

Please explain why that is the case, as it seems to be implying that PIE
isn't actually relocatable in that case...

	-hpa


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