linux-kernel - Re: [RFC] [PATCH 7/7] Ftrace plugin for Uprobes

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Message-ID: <4B4CC992.3010707@am.sony.com>
Date:	Tue, 12 Jan 2010 11:12:18 -0800
From:	Tim Bird <tim.bird@...sony.com>
To:	"rostedt@...dmis.org" <rostedt@...dmis.org>
CC:	Frederic Weisbecker <fweisbec@...il.com>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	utrace-devel <utrace-devel@...hat.com>,
	Jim Keniston <jkenisto@...ibm.com>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	Maneesh Soni <maneesh@...ibm.com>,
	Mark Wielaard <mjw@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] [PATCH 7/7] Ftrace plugin for Uprobes

Steven Rostedt wrote:
> I do this all the time to limit the function tracer to a specific app.
> 
> #!/bin/sh
> echo $$ > /debug/tracing/set_ftrace_pid
> echo function > /debug/tracing/current_tracer
> exec $*

This seems pretty handy.  You should put this in scripts/tracing.
:-)

Do you have any other helper scripts you use commonly?
 -- Tim

=============================
Tim Bird
Architecture Group Chair, CE Linux Forum
Senior Staff Engineer, Sony Corporation of America
=============================

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