Re: [PATCH 01/16] perf: Unified API to record selective sets of archregisters

From: Frederic Weisbecker
Date: Thu Jun 07 2012 - 06:31:52 EST


On Thu, Jun 07, 2012 at 12:29:23PM +0200, Peter Zijlstra wrote:
> On Thu, 2012-06-07 at 11:46 +0200, Frederic Weisbecker wrote:
> >
> > Do you think that compat regs are always a subset of native regs in all
> > archs as in x86? Sounds logic but I'm asking just in case. If so then yeah
> > this should work.
>
> I can't answer this authoritatively but it would seem strange if this
> were not the case. But even if it were so, you could always frob both
> sets in a single space such that the shared registers overlap etc.

Looks good. Let's take that direction then.
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