From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261733AbTKBRAb (ORCPT ); Sun, 2 Nov 2003 12:00:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261753AbTKBRAb (ORCPT ); Sun, 2 Nov 2003 12:00:31 -0500 Received: from web40908.mail.yahoo.com ([66.218.78.205]:1366 "HELO web40908.mail.yahoo.com") by vger.kernel.org with SMTP id S261733AbTKBRAa (ORCPT ); Sun, 2 Nov 2003 12:00:30 -0500 Message-ID: <20031102170029.59013.qmail@web40908.mail.yahoo.com> Date: Sun, 2 Nov 2003 09:00:29 -0800 (PST) From: Bradley Chapman Subject: What do frame pointers do? To: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org What exactly is the purpose of a frame pointer? As far back as I can remember, 2.4 and 2.6 kernels have supported something called a frame pointer, which slows down the kernel slightly but supposedly outputs 'very useful debugging information.' Unfortunately, it doesn't really explain what they are, and for the past few months, I haven't seen any hacker gods asking for CONFIG_FRAME_POINTER=y, except for Russell King, who wants them compiled for ARM processors for some reason (I grepped the kernel source looking for answers and found a comment which implied this). Does anyone know where I can find a good explanation of what they are and what they do? TIA Brad Chapman ===== Brad Chapman Permanent e-mail: kakadu_croc@yahoo.com __________________________________ Do you Yahoo!? Exclusive Video Premiere - Britney Spears http://launch.yahoo.com/promos/britneyspears/