linux-kernel - Re: Our failure on tracing tools unification

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Message-ID: <y0m8vhjopvs.fsf@fche.csb>
Date:	Wed, 25 Apr 2012 10:19:35 -0400
From:	fche@...hat.com (Frank Ch. Eigler)
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Borislav Petkov <bp@...en8.de>,
	Namhyung Kim <namhyung.kim@....com>,
	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>
Subject: Re: Our failure on tracing tools unification


mingo wrote:

> [...]  One thing that would suck is perf being bound by various
> versions of this library floating out there.

Could the event parser shared library be ABI-preserving?  If so, what
would perf have to fear?

> [...] We had nothing but pain from external libraries so far [...]

If the elfutils, newt, gtk, bfd, iberty, zlib, python libraries didn't
contribute useful and un-rewriteable functionality, perf would not be
using them.


- FChE
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