linux-kernel - Re: sched.c: why -fno-omit-frame-pointer?

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Date:	20 Aug 2007 01:00:17 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Adrian Bunk <bunk@...nel.org>
Cc:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Andreas Schwab <schwab@...e.de>,
	Alan Modra <alan@...uxcare.com.au>,
	David Mosberger-Tang <davidm@....hp.com>
Subject: Re: sched.c: why -fno-omit-frame-pointer?

Adrian Bunk <bunk@...nel.org> writes:
> 
> Is the -fno-omit-frame-pointer still required for some reason, or is 
> this a relict that could be removed?

It's needed so that the WCHAN /proc display can backtrace one
level up out of schedule()

-Andi
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