From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753926AbYIKFev (ORCPT ); Thu, 11 Sep 2008 01:34:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751560AbYIKFen (ORCPT ); Thu, 11 Sep 2008 01:34:43 -0400 Received: from smtp1.dnsmadeeasy.com ([205.234.170.134]:48675 "EHLO smtp1.dnsmadeeasy.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751491AbYIKFen (ORCPT ); Thu, 11 Sep 2008 01:34:43 -0400 X-Authenticated-Name: js.dnsmadeeasy X-Transit-System: In case of SPAM please contact abuse@dnsmadeeasy.com Message-ID: <48C8ADEF.9020305@avtrex.com> Date: Wed, 10 Sep 2008 22:34:39 -0700 From: David Daney User-Agent: Thunderbird 2.0.0.16 (X11/20080723) MIME-Version: 1.0 To: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Subject: [Patch 0/6] MIPS: Hardware watch register support for gdb (version 4). Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 11 Sep 2008 05:34:41.0024 (UTC) FILETIME=[169C5800:01C913D0] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Esteemed kernel hackers, To follow is my forth pass at MIPS watch register support. This version has been tested on: * MIPS 4KEc (mips32) with a single set of watch registers watchhi not reporting I, R, and W conditions. * MIPS 4KEc (mips32r2) with four sets of watch registers. * R5000 SGI O2 (mips4 64bit) with no watch register support. The patches are against 2.6.27-rc6 To use the patch you will need a suitably patched version of gdb. The patch against the HEAD of gdb's cvs can be found here: http://sourceware.org/ml/gdb-patches/2008-09/msg00230.html The previous version of this patch is here: http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=48B71ADD.601%40avtrex.com The main changes from the previous version are as follows... * The characteristics of each watch register set are communicated via ptrace because according to the mips32 reference, each set can have different masks and I, R, W bit support. Previously only the characteristics of the first set were returned. * The alignment of the structures passed via ptrace are explicitly specified as various versions of gcc align 64-bit objects differently. Six patches to follow. Thanks David Daney