linux-kernel - Re: [patch 8/9] x86, ftrace: call trace->open() before stopping tracing; add trace->print

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Message-ID: <c62985530811250055m9692087ncf7a9ef3e3250f21@mail.gmail.com>
Date:	Tue, 25 Nov 2008 09:55:21 +0100
From:	"Frédéric Weisbecker" <fweisbec@...il.com>
To:	"Markus Metzger" <markus.t.metzger@...el.com>
Cc:	hpa@...or.com, linux-kernel@...r.kernel.org, mingo@...e.hu,
	tglx@...utronix.de, markus.t.metzger@...il.com, roland@...hat.com,
	akpm@...ux-foundation.org, mtk.manpages@...il.com,
	eranian@...glemail.com, juan.villacis@...el.com
Subject: Re: [patch 8/9] x86, ftrace: call trace->open() before stopping tracing; add trace->print_header()

2008/11/25 Markus Metzger <markus.t.metzger@...el.com>:
> Add a callback to allow an ftrace plug-in to write its own header.


That's a good idea IMHO. The trace file has always the same header
which fits the needs of function
tracer for example, but these headers are wrong for other tracers. And
be able to set custom header
for each one will help for new users of a tracer.
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