linux-kernel - Re: [PATCH 00/15] tools: Unify perf and trace-cmd trace event format parsing v3

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Date:	Mon, 21 May 2012 15:40:04 +0900
From:	Namhyung Kim <namhyung.kim@....com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Borislav Petkov <bp@...en8.de>, Jiri Olsa <jolsa@...hat.com>,
	Arun Sharma <asharma@...com>,
	Michael Rubin <mrubin@...gle.com>,
	David Sharp <dhsharp@...gle.com>,
	Vaibhav Nagarnaik <vnagarnaik@...gle.com>,
	Julia Lawall <julia@...u.dk>, Tom Zanussi <tzanussi@...il.com>,
	David Ahern <dsahern@...il.com>
Subject: Re: [PATCH 00/15] tools: Unify perf and trace-cmd trace event format parsing v3

Hi, Ingo

On Mon, 7 May 2012 10:14:24 +0200, Ingo Molnar wrote:
> * Frederic Weisbecker <fweisbec@...il.com> wrote:
>> This is essentially a rebase against latest tip:perf/core updates.
>> Mostly due to conflicts against the perf Makefile updates.
>> 
>> I think we all agree that this library needs improvements but these
>> should rather be done incrementally. The current perf trace event parsing
>> is anyway much backward compared to that library.
>> 
>> Default target is a static library in tools/lib/traceevent/libtraceevent.a
>> 
>> This can be pulled from:
>> 
>> git://github.com/fweisbec/tracing.git
>> 	perf/parse-events-4
>
> It gives me:
>
> /home/mingo/tip/tools/lib/traceevent/parse-filter.c: In function ‘create_arg_item’:
> /home/mingo/tip/tools/lib/traceevent/parse-filter.c:343:9: warning: comparison between ‘enum filter_arg_type’ and ‘enum event_type’ [-Wenum-compare]
> /home/mingo/tip/tools/lib/traceevent/parse-filter.c:339:2: warning: case value ‘8’ not in enumerated type ‘enum filter_arg_type’ [-Wswitch]
>
> Had this been in tools/perf/ it would use -Werror already and 
> you'd have fixed it, not requiring me to unpull these bits :-/
>
> So can we please make a libevent.so, built sanely within 
> tools/perf/lib/ or such and distributed together with perf so 
> that the two can never get out of sync?
>

So what are you gonna do with this patchset? If you merge this series,
I can back-port latest changes on trace-cmd and do my further work like
'die' removal on it.

Thanks,
Namhyung
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