From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27301 invoked by alias); 22 Oct 2008 18:14:29 -0000 Received: (qmail 27293 invoked by uid 22791); 22 Oct 2008 18:14:29 -0000 X-Spam-Check-By: sourceware.org Received: from smtp-outbound-2.vmware.com (HELO smtp-outbound-2.vmware.com) (65.115.85.73) by sourceware.org (qpsmtpd/0.31) with ESMTP; Wed, 22 Oct 2008 18:13:53 +0000 Received: from mailhost2.vmware.com (mailhost2.vmware.com [10.16.67.167]) by smtp-outbound-2.vmware.com (Postfix) with ESMTP id 5D42A1000E; Wed, 22 Oct 2008 11:13:52 -0700 (PDT) Received: from [10.20.92.59] (promb-2s-dhcp59.eng.vmware.com [10.20.92.59]) by mailhost2.vmware.com (Postfix) with ESMTP id 442398E5F8; Wed, 22 Oct 2008 11:13:52 -0700 (PDT) Message-ID: <48FF6C46.1020402@vmware.com> Date: Wed, 22 Oct 2008 18:14:00 -0000 From: Michael Snyder User-Agent: Thunderbird 1.5.0.12 (X11/20080411) MIME-Version: 1.0 To: teawater CC: Daniel Jacobowitz , Jakob Engblom , "gdb@sourceware.org" Subject: Re: [discuss] semantics, "replay debugging" vs. "reverse debugging" References: <48FBDA34.6020104@vmware.com> <007e01c9334e$aad56ff0$00804fd0$@com> <20081022133716.GA10237@caradoc.them.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org X-SW-Source: 2008-10/txt/msg00089.txt.bz2 teawater wrote: > Sorry I am wrong. > In ARM, Just adds set cpsr reg. So: > add r0,r0,#10 > Can reverse without record too. OK, well, I was really speaking in the abstract. I only meant "it's possible to imagine a target or architecture in which reverse execution can be done by some means other than record/replay". Didn't necessarily mean that it could be done on any real, existing architecture.