linux-kernel - Re: [PATCH 10/38] perf tools: Pass session arg to perf_event__preprocess

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Date:	Tue, 3 Mar 2015 10:59:30 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Jiri Olsa <jolsa@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Stephane Eranian <eranian@...gle.com>,
	Andi Kleen <andi@...stfloor.org>,
	David Ahern <dsahern@...il.com>
Subject: Re: [PATCH 10/38] perf tools: Pass session arg to
 perf_event__preprocess_sample()

Em Tue, Mar 03, 2015 at 12:07:22PM +0900, Namhyung Kim escreveu:
> The perf_event__preprocess_sample() translates a given ip into a
> matching symbol.  To do that, it first finds a corresponding thread
> and map in the current thread tree.  But for indexed data files, it
> needs to find a thread (and map) with slightly different APIs using
> timestamp.  So it needs a way to know whether this session deals with
> an indexed data file or not.

I need to look into this, but in general, I'm trying to _remove_
accesses to perf_session :-)

- Arnaldo
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