From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12484 invoked by alias); 4 Mar 2010 21:41:17 -0000 Received: (qmail 12476 invoked by uid 22791); 4 Mar 2010 21:41:16 -0000 X-SWARE-Spam-Status: No, hits=-1.8 required=5.0 tests=AWL,BAYES_00,SARE_MSGID_LONG40 X-Spam-Check-By: sourceware.org Received: from mail-ww0-f41.google.com (HELO mail-ww0-f41.google.com) (74.125.82.41) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 04 Mar 2010 21:41:13 +0000 Received: by wwg30 with SMTP id 30so1071434wwg.0 for ; Thu, 04 Mar 2010 13:41:08 -0800 (PST) MIME-Version: 1.0 Received: by 10.216.88.148 with SMTP id a20mr12062wef.124.1267738866882; Thu, 04 Mar 2010 13:41:06 -0800 (PST) In-Reply-To: <20100304213415.GJ16726@codesourcery.com> References: <20100304180219.GA10826@intel.com> <20100304190934.GB15979@caradoc.them.org> <6dc9ffc81003041129i72a8a79bn66721fecc7b6a83b@mail.gmail.com> <20100304194645.GA20453@caradoc.them.org> <6dc9ffc81003041327m379c6903g571f4d66aac8d61a@mail.gmail.com> <20100304213415.GJ16726@codesourcery.com> Date: Thu, 04 Mar 2010 21:41:00 -0000 Message-ID: <6dc9ffc81003041341r33f5a878uf0540ef69d8fc843@mail.gmail.com> Subject: Re: PATCH: 1/6: Add AVX support From: "H.J. Lu" To: Nathan Froyd Cc: GDB Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-IsSubscribed: yes Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org X-SW-Source: 2010-03/txt/msg00216.txt.bz2 On Thu, Mar 4, 2010 at 1:34 PM, Nathan Froyd wro= te: > On Thu, Mar 04, 2010 at 01:27:09PM -0800, H.J. Lu wrote: >> On Thu, Mar 4, 2010 at 11:46 AM, Daniel Jacobowitz wrote: >> > No, it will fail to display SSE. =A0Core debugging should still be >> > possible, and the newly added registers will be visible too. =A0If >> > that's not the case, fix GDB to function with the SSE registers >> > missing. >> >> Your description only works for truly NEW registers, which >> AVX registers aren't. =A0AVX registers are actually the old SSE >> registers with different names. > > You can make "wide" registers like this work; the PPC backend does this > for the SPE registers, where the lower 32 bits function as the normal > PPC registers and the upper 32 bits are sent as separate "registers". > GDB then synthesizes the complete register out of both parts. > I am not familiar with SPE. How does it work with native SPE gdb? Does it support old registers with new names? --=20 H.J.