From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Ki8l7-0007ek-FZ for qemu-devel@nongnu.org; Tue, 23 Sep 2008 10:20:57 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Ki8l5-0007dT-AJ for qemu-devel@nongnu.org; Tue, 23 Sep 2008 10:20:56 -0400 Received: from [199.232.76.173] (port=43107 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Ki8l5-0007dQ-3y for qemu-devel@nongnu.org; Tue, 23 Sep 2008 10:20:55 -0400 Received: from mail.codesourcery.com ([65.74.133.4]:35456) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Ki8l4-00032K-P1 for qemu-devel@nongnu.org; Tue, 23 Sep 2008 10:20:55 -0400 From: Paul Brook Subject: Re: [Qemu-devel] Regarding PTRACE implementation in QEMU user mode Date: Tue, 23 Sep 2008 15:20:51 +0100 References: <30687.26589.qm@web94802.mail.in2.yahoo.com> <200809231512.40813.paul@codesourcery.com> In-Reply-To: <200809231512.40813.paul@codesourcery.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200809231520.51803.paul@codesourcery.com> 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 Cc: sathish kumar , rajesh-siso On Tuesday 23 September 2008, Paul Brook wrote: > > Can someone explain why explain why ptrace system call is not implemented > > in QEMU? if someone is working on it, please share some ideas. > > Because it's extremely hard (read: nearly impossible) to implement > properly. I'll also note that the usual use of ptrace if for gdb/gdbserver. You should use the builtin qemu gdb stub instead. Paul