linux-kernel - Re: [PATCH] make CALLER

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Message-ID: <8bd0f97a0902251420k7bd00c4fhda34004d1993975a@mail.gmail.com>
Date:	Wed, 25 Feb 2009 17:20:13 -0500
From:	Mike Frysinger <vapier.adi@...il.com>
To:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>,
	Bernd Schmidt <bernds_cb1@...nline.de>
Cc:	linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH] make CALLER_ADDRx overwriteable

On Wed, Feb 25, 2009 at 17:16, Uwe Kleine-König wrote:
> The current definition of CALLER_ADDRx isn't suitable for all platforms.
> E.g. for ARM __builtin_return_address(N) doesn't work for N > 0

afaik, the same applies to the Blackfin port.  we looked at
implementing __builtin_return_address(N) and decided it wasnt worth
the hassle.
-mike
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