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From: Johannes Berg <johannes@sipsolutions.net>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>
Subject: binary ftrace buffer format
Date: Mon, 13 Jul 2009 23:23:09 +0200	[thread overview]
Message-ID: <1247520189.4071.4.camel@johannes.local> (raw)

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Hi!

For the past hour or so I've been trying to make Steven's rb-read.pl
script [1] work, but not only is it endian-challenged, working only on
LE, but also does it seems to have a different idea of the ring buffer
format, so even with fixes I can't get it to print proper data.

I'm convinced that it would be trivial to write a program to parse the
binary trace buffer, but I can't find a format description. Can somebody
point me to one please?

Oh and a tangential question -- that thing seems to work on pages, does
that mean I can't trace something larger than a page?

johannes

[1] http://lwn.net/Articles/321777/

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             reply	other threads:[~2009-07-13 21:23 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-13 21:23 Johannes Berg [this message]
2009-07-14 17:22 ` Johannes Berg
2009-07-21  1:51 ` Steven Rostedt
2009-07-21 10:46   ` Johannes Berg
2009-07-22 11:36   ` Johannes Berg
2009-07-22 15:17     ` Steven Rostedt

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