linux-kernel - Re: [PATCHv9 2.6.35-rc4-tip 0/13] Uprobes Patches:

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Message-ID: <20100721024200.GC19375@linux.vnet.ibm.com>
Date:	Wed, 21 Jul 2010 08:12:00 +0530
From:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
To:	Arnaldo Carvalho de Melo <acme@...radead.org>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...e.hu>,
	Steven Rostedt <rostedt@...dmis.org>,
	Randy Dunlap <rdunlap@...otime.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Naren A Devaiah <naren.devaiah@...ibm.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Mark Wielaard <mjw@...hat.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jim Keniston <jkenisto@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: Re: [PATCHv9 2.6.35-rc4-tip 0/13]  Uprobes Patches:


> Em Tue, Jul 20, 2010 at 12:08:05PM +0530, Srikar Dronamraju escreveu:
> > > A minor note on perf probe -S output:  This seems to include a lot of
> > > T.456 or similar labels, which from my recollection are gcc internal
> > > things.  It would be good to filter those out as they aren't quite
> > > useful and just fill up the list.
> > 
> > Okay .. will take a look. Offhand I dont know about the T.456
> > labels, so I will google and see if its possible for us to identify if
> > its a t.456 label. However if you know how to identify a t456 label
> > from normal functions, then it would be great.
> 
> We may have some hint on the symtab, having access to one of those files
> to look at its symtab will help.

I tried searching for t.456 gcc labels in google. I dont think I found
anything interesting. Are we looking at not listing symbols that end
with @plt? Can you please list an example t.456 label. Also any pointers to
where I can find more information on the same would be very useful.

-Srikar
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