linux-kernel - Re: [PATCH] perf symbols: Synthesize anonymous mmap events

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Message-ID: <1314731462.9659.3.camel@jaguar>
Date:	Tue, 30 Aug 2011 22:11:02 +0300
From:	Pekka Enberg <penberg@...nel.org>
To:	Anton Blanchard <anton@...ba.org>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>, Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	emunson@...bm.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf symbols: Synthesize anonymous mmap events

On Tue, 2011-08-30 at 09:15 +1000, Anton Blanchard wrote:
> perf_event__synthesize_mmap_events does not create anonymous mmap
> events even though the kernel does. As a result an already running
> application with dynamically created code will not get profiled -
> all samples end up in the unknown bucket.
> 
> This patch skips any entries with '[' in the name to avoid adding
> events for special regions (eg the vsyscall page). All other
> executable mmaps are assumed to be anonymous and an event is
> synthesized.
> 
> Signed-off-by: Anton Blanchard <anton@...ba.org>

Acked-by: Pekka Enberg <penberg@...nel.org>

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