linux-kernel - [Patch -tip 1/4] Tracing/ftrace: Add the initcall tracer

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Message-ID: <48D8C5A8.3080803@gmail.com>
Date:	Tue, 23 Sep 2008 11:32:08 +0100
From:	Frédéric Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Steven Rostedt <rostedt@...dmis.org>,
	Steven Noonan <steven@...inklabs.net>,
	Arjan van de Ven <arjan@...radead.org>
Subject: [Patch -tip 1/4] Tracing/ftrace: Add the initcall tracer

Add the initcall tracer. It will be able to trace the initcalls which follow SMP initialization.
It is intended to be used with scripts/bootgraph.pl after some small improvements.
Note that it is not active after its init. To avoid tracing (and so crashing) before the whole tracing engine init,
you have to explicitly call start_initcall_trace() after do_pre_smp_initcalls() to enable it.

Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
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