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

[H.J. Lu]

On Mon, Dec 9, 2013 at 1:49 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
>>
>>> 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.
>

PIE with non-zero vaddr should be loaded at non-zero
vaddr.  Otherwise, PIE may not work as expected.


-- 
H.J.
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