From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21569 invoked by alias); 3 Jan 2009 18:09:50 -0000 Received: (qmail 21553 invoked by uid 22791); 3 Jan 2009 18:09:49 -0000 X-SWARE-Spam-Status: No, hits=-0.5 required=5.0 tests=AWL,BAYES_50 X-Spam-Check-By: sourceware.org Received: from oden.vtab.com (HELO oden.vtab.com) (62.20.90.195) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Sat, 03 Jan 2009 18:08:56 +0000 Received: from oden.vtab.com (oden.vtab.com [127.0.0.1]) by oden.vtab.com (Postfix) with ESMTP id 442E526F71E for ; Sat, 3 Jan 2009 19:08:52 +0100 (CET) Received: from polhem (c83-253-21-188.bredband.comhem.se [83.253.21.188]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by oden.vtab.com (Postfix) with ESMTP id 055E926F715 for ; Sat, 3 Jan 2009 19:08:52 +0100 (CET) From: "Jakob Engblom" To: References: <49463870.6080302@virtutech.com> <494A0A9C.6020809@virtutech.com> <494B5A82.4020004@virtutech.com> <494BF080.9060009@vmware.com> <6D19CA8D71C89C43A057926FE0D4ADAA06B06B04@ecamlmw720.eamcs.ericsson.se> In-Reply-To: <6D19CA8D71C89C43A057926FE0D4ADAA06B06B04@ecamlmw720.eamcs.ericsson.se> Subject: RE: reverse for GDB/MI Date: Sat, 03 Jan 2009 18:09:00 -0000 Message-ID: <001401c96dce$5609c060$021d4120$@com> MIME-Version: 1.0 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: 2009-01/txt/msg00008.txt.bz2 =20 > Hi, >=20 > It was pointed out to me that people who have been doing reversible > debug for a while seems to > have specific commands for reverse debugging and they do have a command > for "go to time point P". > For example http://www.undo-software.com/undodb_man.html: >=20 > bgoton > Move forwards or backwards to the specified time, in simulated > nanoseconds. > bgoton + | - > Step forward/backward the specified number of simulated nanoseconds. Simics has it to, in some different ways: skip-to =20 reverse n time units continue n time units I think this is a good example of the kind of new commands and abilities th= at come with having a reverse ability in the first place, like Marc said.=20 And as the later discussion evolved, it would be jolly nice to have an idea= of time in gdb. I think that is needed anyway to handle multicore, multiproces= sor, and multithreaded debug: when things happen in disparate locations under the control of a single debugger quickly gets very interesting... Best regards, /jakob _______________________________________________________ Jakob Engblom, PhD, Technical Marketing Manager Virtutech Direct: +46 8 690 07 47=20=20=20=20 Drottningholmsv=E4gen 14 Mobile: +46 709 242 646=20=20=20 11243 Stockholm Web: www.virtutech.com=20=20 Sweden ________________________________________________________ =20