From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1JCVqh-00039V-Jm for qemu-devel@nongnu.org; Wed, 09 Jan 2008 02:59:43 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1JCVqg-00038O-Mq for qemu-devel@nongnu.org; Wed, 09 Jan 2008 02:59:43 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JCVqg-00038F-Gk for qemu-devel@nongnu.org; Wed, 09 Jan 2008 02:59:42 -0500 Received: from mx20.gnu.org ([199.232.41.8]) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1JCVqg-00040J-1A for qemu-devel@nongnu.org; Wed, 09 Jan 2008 02:59:42 -0500 Received: from mail.sysgo.com ([62.8.134.5]) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1JCVqe-00067h-VJ for qemu-devel@nongnu.org; Wed, 09 Jan 2008 02:59:41 -0500 Received: from donald.sysgo.com (unknown [172.20.1.30]) by mail.sysgo.com (Postfix) with ESMTP id F0904CC2E8 for ; Wed, 9 Jan 2008 08:59:35 +0100 (CET) Received: from mag-lap.sysgo.com (mag-lap.sysgo.com [172.22.7.12]) by donald.sysgo.com (Postfix) with ESMTP id 129A3268013 for ; Wed, 9 Jan 2008 08:59:37 +0100 (CET) Date: Wed, 9 Jan 2008 08:59:35 +0100 (CET) From: Marius Groeger Sender: mag@sysgo.com Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Subject: [Qemu-devel] Single stepping for PPC broken? Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Hello all, I'm having problems with qemu's (-M prep, -cpu 604) handling of the MSR_SE bit. My gdbstub can successfully step along regular code, but qemu chokes when stepping over a branch instruction like "blr". (Needless to say, that same gdbstub works fine on real hardware). I tried older versions of qemu and found that the code base 8 months ago worked fine. I'd like to try this with Linux and gdbserver (or a native gdb) but I don't have any boot images handy and oszoo.org seems to be down right now. Any ideas? Did perhaps the PPC440 additions add some regression here? Can someone try booting Linux on qemu-system-ppc and try gdb/gdbserver? (I haven't been following this list lately, so please bear with me if I missed something critical. I've searched the archives, of course, but to no avail.) Regards and TIA, Marius -- Marius Groeger SYSGO AG Embedded and Real-Time Software Voice: +49 6136 9948 0 FAX: +49 6136 9948 10 www.sysgo.com | www.elinos.com | www.osek.de | www.pikeos.com