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Message-ID: <1348822473.3292.55.camel@twins>
Subject: Re: [PATCH 08/31] perf, x86: Report PEBS event in a raw format
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Andi Kleen <andi@firstfloor.org>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org, eranian@google.com,
        acme@redhat.com, Andi Kleen <ak@linux.intel.com>
Date: Fri, 28 Sep 2012 10:54:33 +0200
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On Thu, 2012-09-27 at 21:31 -0700, Andi Kleen wrote:
> Left over are the general registers. We need them for some analysis
> too: for example for loop trip count and string instruction trip
> count sampling.
> 
> There isn't really any good way to generalize general registers.
> Obviously they are different for every architecture.

You missed the whole PERF_SAMPLE_REGS_USER stuff?