Re: [PATCH 01/16] perf: Unified API to record selective sets ofarch registers

From: Peter Zijlstra
Date: Thu Jun 07 2012 - 06:29:44 EST


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.
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