From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934323Ab0CMRiy (ORCPT ); Sat, 13 Mar 2010 12:38:54 -0500 Received: from cpe-74-67-89-75.stny.res.rr.com ([74.67.89.75]:41256 "EHLO localhost.localdomain" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933453Ab0CMRix convert rfc822-to-8bit (ORCPT ); Sat, 13 Mar 2010 12:38:53 -0500 Subject: Re: [PATCH 04/10] ARM: ftrace: allow building without frame pointers From: Steven Rostedt To: Rabin Vincent Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Frederic Weisbecker , Ingo Molnar , Abhishek Sagar , Uwe =?ISO-8859-1?Q?Kleine-K=F6nig?= In-Reply-To: <1268462987-8271-5-git-send-email-rabin@rab.in> References: <1268462987-8271-1-git-send-email-rabin@rab.in> <1268462987-8271-5-git-send-email-rabin@rab.in> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Date: Sat, 13 Mar 2010 12:38:28 -0500 Message-ID: <1268501908.3366.8.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.28.2 (2.28.2-1.fc12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2010-03-13 at 12:19 +0530, Rabin Vincent wrote: > With a new enough GCC, ARM function tracing can be supported without the > need for frame pointers. This is essential for Thumb-2 support, since > frame pointers aren't available then. > > Signed-off-by: Rabin Vincent > diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig > index 13e13d4..e10519f 100644 > --- a/kernel/trace/Kconfig > +++ b/kernel/trace/Kconfig > @@ -124,7 +124,7 @@ if FTRACE > config FUNCTION_TRACER > bool "Kernel Function Tracer" > depends on HAVE_FUNCTION_TRACER > - select FRAME_POINTER > + select FRAME_POINTER if (!ARM_UNWIND) I'm fine with this if the ARM maintainers are. Acked-by: Steven Rostedt -- Steve > select KALLSYMS > select GENERIC_TRACER > select CONTEXT_SWITCH_TRACER