From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.2 Received: (qmail 28823 invoked from network); 3 May 2020 06:59:37 -0000 Received-SPF: pass (minnie.tuhs.org: domain of minnie.tuhs.org designates 45.79.103.53 as permitted sender) receiver=inbox.vuxu.org; client-ip=45.79.103.53 envelope-from= Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 3 May 2020 06:59:37 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 4CB819C9BF; Sun, 3 May 2020 16:59:34 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id AA13B9B962; Sun, 3 May 2020 16:58:59 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id F1E459B962; Sun, 3 May 2020 16:58:56 +1000 (AEST) Received: from freefriends.org (freefriends.org [96.88.95.60]) by minnie.tuhs.org (Postfix) with ESMTPS id DC1FE9B934 for ; Sun, 3 May 2020 16:58:54 +1000 (AEST) X-Envelope-From: arnold@skeeve.com Received: from freefriends.org (freefriends.org [96.88.95.60]) by freefriends.org (8.14.7/8.14.7) with ESMTP id 0436wrcN000462 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 3 May 2020 00:58:54 -0600 Received: (from arnold@localhost) by freefriends.org (8.14.7/8.14.7/Submit) id 0436wqRf000460; Sun, 3 May 2020 00:58:52 -0600 From: arnold@skeeve.com Message-Id: <202005030658.0436wqRf000460@freefriends.org> X-Authentication-Warning: frenzy.freefriends.org: arnold set sender to arnold@skeeve.com using -f Date: Sun, 03 May 2020 00:58:52 -0600 To: tuhs@minnie.tuhs.org, pnr@planet.nl References: <2F4C604D-F01C-4A82-948A-7E77093B48A1@planet.nl> <21F16C75-62AB-422A-A43F-981407E11434@planet.nl> In-Reply-To: <21F16C75-62AB-422A-A43F-981407E11434@planet.nl> User-Agent: Heirloom mailx 12.5 7/5/10 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Subject: Re: [TUHS] SDB debugger X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" Paul Ruizendaal wrote: > The dbx debugger appears to stand on the shoulders of sdb, > and gdb on the shoulders of dbx. I think this is a fair statement with respect to command languages and how they work, but probably not w.r.t. shared code bases (a guess, but particularly in the case of gdb I bet that would have been written from scratch.) This only makes sense, too. The user base's first source level debugger would have been sdb. Modelling dbx after sdb (to whatever extent) makes it easier for users to pick it up. Similarly, I remember moving from dbx to gdb; it was straightforward, but also a big improvement in terms of the command line. My two cents :-) Arnold