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Date: Mon, 7 May 2012 10:14:24 +0200
From: Ingo Molnar <mingo@kernel.org>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>, Steven Rostedt <rostedt@goodmis.org>,
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        Vaibhav Nagarnaik <vnagarnaik@google.com>,
        Julia Lawall <julia@diku.dk>, Tom Zanussi <tzanussi@gmail.com>,
        David Ahern <dsahern@gmail.com>
Subject: Re: [PATCH 00/15] tools: Unify perf and trace-cmd trace event format
 parsing v3
Message-ID: <20120507081424.GE16608@gmail.com>
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* Frederic Weisbecker <fweisbec@gmail.com> wrote:

> Hi,
> 
> 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/libtraceevent/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?

Thanks,

	Ingo