From mboxrd@z Thu Jan  1 00:00:00 1970
From: Arnaldo Carvalho de Melo <acme@kernel.org>
Subject: Re: perf probe an addr without debuginfo
Date: Mon, 29 Jun 2015 12:00:38 -0300
Message-ID: <20150629150038.GA1225@kernel.org>
References: <CAE40pdemFG8f7EB6SerUEGeK0G2qeztqzeLCnLigB3TdgY6G1Q@mail.gmail.com>
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To: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Benjamin King <benjaminking@web.de>, Brendan Gregg <brendan.d.gregg@gmail.com>, "linux-perf-use." <linux-perf-users@vger.kernel.org>

Em Sun, Jun 28, 2015 at 05:46:51PM +0200, Benjamin King escreveu:
> Hi Brendan
> 
> >Is there a trick to getting perf to probe a user-level address without
> >debuginfo? Eg (on Linux 4.0):
> >[...]
> >I can do this using ftrace ok, eg, "p:tick_0x583 /root/tick:0x583"
> >works. Thanks,
> 
> Not quite what you have asked for, but you can add the probe via ftrace and
> then use it from perf. Probes from /sys/kernel/debug/tracing/uprobe_events
> will show up in 'perf list' as well.

Masami,

	Is this already possible?

- Arnaldo

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