Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756483AbZCYRFy (ORCPT ); Wed, 25 Mar 2009 13:05:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752420AbZCYRFq (ORCPT ); Wed, 25 Mar 2009 13:05:46 -0400 Received: from metis.ext.pengutronix.de ([92.198.50.35]:57716 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750940AbZCYRFp (ORCPT ); Wed, 25 Mar 2009 13:05:45 -0400 Date: Wed, 25 Mar 2009 18:05:33 +0100 From: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= To: Tim Bird , Russell King - ARM Linux Cc: Frederic Weisbecker , Abhishek Sagar , linux-arm-kernel , linux kernel , Steven Rostedt , Ingo Molnar Subject: Re: Anyone working on ftrace function graph support on ARM? Message-ID: <20090325170533.GA4667@pengutronix.de> References: <49C936CA.8070800@am.sony.com> <20090324213618.GC5975@nowhere> <49C95EAF.7030901@gmail.com> <20090324224857.GE5975@nowhere> <20090325084248.GF4697@n2100.arm.linux.org.uk> <49CA5CFF.8090908@am.sony.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <49CA5CFF.8090908@am.sony.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: 2001:6f8:1178:2:215:17ff:fe12:23b0 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 921 Lines: 21 On Wed, Mar 25, 2009 at 09:34:07AM -0700, Tim Bird wrote: > Russell King - ARM Linux wrote: > > As pointed out in my previous mail, identifying where on the stack the > > return address is stored is only possible for OABI with frame pointers. > > > > EABI will probably be possible with the stack unwinding code, but it > > probably won't be cheap. The EABI unwinder is scheduled for merging > > during the present now-open merge window. EABI with frame pointers should work, too, shouldn't it? Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-K?nig | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/