From: Benjamin King <benjaminking@web.de>
To: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: "linux-perf-use." <linux-perf-users@vger.kernel.org>
Subject: Re: perf probe an addr without debuginfo
Date: Sun, 28 Jun 2015 17:46:51 +0200 [thread overview]
Message-ID: <20150628154651.GA3953@localhost> (raw)
In-Reply-To: <CAE40pdemFG8f7EB6SerUEGeK0G2qeztqzeLCnLigB3TdgY6G1Q@mail.gmail.com>
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.
Cheers,
Benjamin
next prev parent reply other threads:[~2015-06-28 15:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-27 19:06 perf probe an addr without debuginfo Brendan Gregg
2015-06-28 15:46 ` Benjamin King [this message]
2015-06-29 15:00 ` Arnaldo Carvalho de Melo
2015-06-30 6:44 ` Benjamin King
2015-06-30 8:51 ` Masami Hiramatsu
2015-06-30 18:07 ` Brendan Gregg
2015-06-30 20:44 ` Benjamin King
2015-06-30 7:37 ` Masami Hiramatsu
2015-06-30 18:40 ` Brendan Gregg
2015-07-01 11:05 ` Masami Hiramatsu
2015-07-06 23:18 ` Brendan Gregg
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