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From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: Uwe Kleine-Konig <u.kleine-koenig@pengutronix.de>
Cc: kosaki.motohiro@jp.fujitsu.com, linux-kernel@vger.kernel.org,
	Steven Rostedt <rostedt@goodmis.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH] make CALLER_ADDRx overwriteable
Date: Sat, 28 Feb 2009 15:40:44 +0900 (JST)	[thread overview]
Message-ID: <20090228153853.6FC0.A69D9226@jp.fujitsu.com> (raw)
In-Reply-To: <1235766603-25206-1-git-send-email-u.kleine-koenig@pengutronix.de>

> 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 and
> AFAIK for powerpc there are no frame pointers needed to have a working
> __builtin_return_address.  This patch allows defining the CALLER_ADDRx
> macros in <asm/ftrace.h> and let these take precedence.
> 
> Because now <asm/ftrace.h> is included unconditionally in
> <linux/ftrace.h> all archs that don't already had this include get an
> empty one for free.
> 
> Signed-off-by: Uwe Kleine-Konig <u.kleine-koenig@pengutronix.de>
> Cc: Steven Rostedt <rostedt@goodmis.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Ingo Molnar <mingo@elte.hu>
> --
> Hello,
> 
> OK, changed to check for HAVE_ARCH_CALLER_ADDR instead of CALLER_ADDR0.
> 
> Best regards
> Uwe

thanks.

	Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>





  reply	other threads:[~2009-02-28  6:41 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-25 22:16 Uwe Kleine-König
2009-02-25 22:20 ` Mike Frysinger
2009-02-25 22:26   ` Uwe Kleine-König
2009-02-26  5:08 ` Steven Rostedt
2009-02-26 13:45   ` Uwe Kleine-König
2009-02-26 13:59     ` Steven Rostedt
2009-02-26 22:11       ` Uwe Kleine-König
2009-02-27  7:32         ` KOSAKI Motohiro
2009-02-27 11:22           ` Uwe Kleine-König
2009-02-27 15:21             ` Steven Rostedt
2009-02-27 20:30               ` Uwe Kleine-König
2009-02-28  6:40                 ` KOSAKI Motohiro [this message]
2009-02-28  7:25                   ` Uwe Kleine-König
     [not found] <1235594749-24585-1-git-send-email-u.kleine-koenig@pengutronix.de>
2009-02-26  3:02 ` Ingo Molnar
2009-02-26  3:13   ` Steven Rostedt

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