linux-kernel - Re: [PATCH 01/15] perf: Separate out trace-cmd parse-events from perf files

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Date:	Fri, 6 Apr 2012 13:36:15 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Steven Rostedt <srostedt@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Jiri Olsa <jolsa@...hat.com>, Arun Sharma <asharma@...com>,
	Namhyung Kim <namhyung.kim@....com>
Subject: Re: [PATCH 01/15] perf: Separate out trace-cmd parse-events from
 perf files

On Fri, Apr 06, 2012 at 12:47:52AM +0200, Frederic Weisbecker wrote:
> From: Steven Rostedt <srostedt@...hat.com>
> 
> Move the trace-event-parse.c code that originally came from trace-cmd into
> their own files. The new file will be called trace-parse-events.c, as
> the name of trace-cmd's file was parse-events.c too, but it conflicted
> with the parse-events.c file in perf that parses the command line.
> 
> This tries to update the code with mimimal changes.
> 
> Perf specific code stays in the trace-event-parse.[ch] files and
> the common parsing code is now in trace-parse-events.c and
> trace-parse-events.h.
> 
> Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
> Cc: Ingo Molnar <mingo@...nel.org>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Peter Zijlstra <peterz@...radead.org>
> Cc: Arnaldo Carvalho de Melo <acme@...radead.org>
> Cc: Steven Rostedt <rostedt@...dmis.org>
> Cc: Borislav Petkov <bp@...en8.de>
> Cc: Jiri Olsa <jolsa@...hat.com>
> Cc: Arun Sharma <asharma@...com>
> Cc: Namhyung Kim <namhyung.kim@....com>
> Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
> ---
>  tools/perf/Makefile                  |    2 +
>  tools/perf/util/trace-event-parse.c  | 3135 ----------------------------------
>  tools/perf/util/trace-event.h        |  275 +---
>  tools/perf/util/trace-parse-events.c | 3125 +++++++++++++++++++++++++++++++++
>  tools/perf/util/trace-parse-events.h |  273 +++
>  5 files changed, 3405 insertions(+), 3405 deletions(-)
>  create mode 100644 tools/perf/util/trace-parse-events.c
>  create mode 100644 tools/perf/util/trace-parse-events.h

Err, maybe I'm missing something but why this additional step? I mean,
you could do:

patch 1: Add libtraceevent.a from trace-cmd
patch 2: Fixup perf so that it is ready to be switched to the new lib (specific
		wrappers, etc)
patch 3: switch it to libtraceevent.a

Only three patches, right?

-- 
Regards/Gruss,
    Boris.
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