Re: [RFC, PATCH] Fixup COMPAT_VDSO to work with CONFIG_PARAVIRT

From: Ingo Molnar
Date: Fri Mar 16 2007 - 12:32:05 EST



* Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:

> > The practical question here is if we already have all of the
> > relocation logic for the VDSO why do we need to add more?
>
> The kernel doesn't normally ever relocate the vdso; [...]

that's what is the case right now, but much of the intention behind the
vma based vDSO is to enable per-process randomized vdso locations, and
various distributions do that. So the 'modern' vDSO concept is very much
relocatable.

Ingo
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