From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26204 invoked by alias); 10 Dec 2005 01:36:46 -0000 Received: (qmail 26197 invoked by uid 22791); 10 Dec 2005 01:36:46 -0000 X-Spam-Check-By: sourceware.org Received: from main.gmane.org (HELO ciao.gmane.org) (80.91.229.2) by sourceware.org (qpsmtpd/0.31) with ESMTP; Sat, 10 Dec 2005 01:36:45 +0000 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1Ektd4-0003xV-5m for gdb@sources.redhat.com; Sat, 10 Dec 2005 02:34:26 +0100 Received: from ip127.bb146.pacific.net.hk ([202.64.146.127]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 10 Dec 2005 02:34:26 +0100 Received: from tausq by ip127.bb146.pacific.net.hk with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 10 Dec 2005 02:34:26 +0100 To: gdb@sources.redhat.com From: Randolph Chung Subject: Re: Checkpoint-restart with different code Date: Sat, 10 Dec 2005 01:36:00 -0000 Message-ID: References: <4399FDE5.2020905@bronevetsky.com> <20051209220840.GA24624@nevyn.them.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit User-Agent: Thunderbird 1.5 (Windows/20051025) In-Reply-To: <20051209220840.GA24624@nevyn.them.org> X-IsSubscribed: yes Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org X-SW-Source: 2005-12/txt/msg00111.txt.bz2 >> My question is, has anybody heard of anything that can do this? >> Obviously, this kind of checkpointing would require compiler support, so >> gdb wouldn't have done this, but have you heard of any systems/research >> that has addressed this question? Thanks. > > Better: I know at least one production debug environment which supports > this - Apple's Xcode. The option is called fix-and-continue. I don't > think they combine it with checkpointing, though, only as an action on > a running process. It's partly compiler-based and partly in their > debug environment. > > Merging that with Michael's fork-based code would be fairly > straightforward, I expect. HP's wdb (which is derived from gdb) claims to support this with HP compilers. I have not tried it though. http://www.hp.com/go/wdb randolph