linux-kernel - Re: [PATCH 0/8] [GIT PULL] TRACE

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Date:	Tue, 14 Apr 2009 17:59:01 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Theodore Tso <tytso@....edu>
cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Arjan van de Ven <arjan@...radead.org>,
	Christoph Hellwig <hch@....de>,
	Mathieu Desnoyers <compudj@...stal.dyndns.org>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Zhaolei <zhaolei@...fujitsu.com>, Li Zefan <lizf@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	"Frank Ch. Eigler" <fche@...stic.org>,
	Tom Zanussi <tzanussi@...il.com>,
	Jiaying Zhang <jiayingz@...gle.com>,
	Michael Rubin <mrubin@...gle.com>,
	Martin Bligh <mbligh@...gle.com>
Subject: Re: [PATCH 0/8] [GIT PULL] TRACE_EVENT for modules


On Tue, 14 Apr 2009, Steven Rostedt wrote:
> 
> Yes, at the bottom of your header file, before including define_trace.h, 
> you can simply add:
> 
> #undef TRACE_INCLUDE_PATH
> #define TRACE_INCLUDE_PATH ../../fs/ext4
> 
> #include <trace/define_trace.h>
> 
> the TRACE_INCLUDE_PATH is a reference from where trace/define_trace.h is 
> located. It may even be cleaner to do:
> 
> 
> #undef TRACE_INCLUDE_PATH
> #define TRACE_INCLUDE_PATH EXT4_PATH
> 
> and in the Makefile have:
> 
> CFLAGS_ext4_jbd2.o := -DEXT4_PATH=$(PWD)
> 
> That's something like what I did for my external module test.

Note, you only need to add the CFLAGS for the object that performs the:

#define CREATE_TRACE_POINTS

-- Steve

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