From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MLI59-0006cy-6q for qemu-devel@nongnu.org; Mon, 29 Jun 2009 10:43:43 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MLI54-0006Z4-PA for qemu-devel@nongnu.org; Mon, 29 Jun 2009 10:43:42 -0400 Received: from [199.232.76.173] (port=57832 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MLI54-0006Yq-ET for qemu-devel@nongnu.org; Mon, 29 Jun 2009 10:43:38 -0400 Received: from mx20.gnu.org ([199.232.41.8]:34782) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1MLI54-00056h-10 for qemu-devel@nongnu.org; Mon, 29 Jun 2009 10:43:38 -0400 Received: from mail.codesourcery.com ([65.74.133.4]) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1MLI52-0001aX-NT for qemu-devel@nongnu.org; Mon, 29 Jun 2009 10:43:37 -0400 From: Paul Brook Subject: Re: [Qemu-devel] Re: [PATCH 4/4] gdbstub: x86: Switch 64/32 bit registers dynamically Date: Mon, 29 Jun 2009 15:43:33 +0100 References: <20090627075350.13376.17936.stgit@mchn012c.ww002.siemens.net> <200906291507.05278.paul@codesourcery.com> <4A48CE13.6050800@siemens.com> In-Reply-To: <4A48CE13.6050800@siemens.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200906291543.34071.paul@codesourcery.com> List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jan Kiszka Cc: Anthony Liguori , qemu-devel@nongnu.org > > You've just deliberately broken the qemu gdbstub. After your patch it is > > impossible to debug mixed 32/64-bit code. > > Please give it a try as it's the other way around: You can't properly > debug mixed target code without my patch. Sure you can, you just need a gdb that doesn't suck. As soon as you encounter actual mixed code (rather than just running the wrong qemu) your patch causes things to die horribly. Paul