From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9965 invoked by alias); 29 Jun 2009 08:59:29 -0000 Received: (qmail 9953 invoked by uid 22791); 29 Jun 2009 08:59:28 -0000 X-SWARE-Spam-Status: No, hits=-3.6 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_LOW,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: sourceware.org Received: from main.gmane.org (HELO ciao.gmane.org) (80.91.229.2) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 29 Jun 2009 08:59:22 +0000 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1MLChp-0008TU-OY for gdb@sources.redhat.com; Mon, 29 Jun 2009 08:59:17 +0000 Received: from lvk-gate.cmc.msu.ru ([212.192.248.233]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 29 Jun 2009 08:59:17 +0000 Received: from vladimir by lvk-gate.cmc.msu.ru with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 29 Jun 2009 08:59:17 +0000 To: gdb@sources.redhat.com From: Vladimir Prus Subject: Re: -stack-list-locals and children Date: Mon, 29 Jun 2009 08:59:00 -0000 Message-ID: References: <629542d40906281203o3601025at573704e36ee80565@mail.gmail.com> <200906290943.17323.andre.poenitz@nokia.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8Bit User-Agent: KNode/0.10.9 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: 2009-06/txt/msg00285.txt.bz2 André Pönitz wrote: > On Sunday 28 June 2009 21:03:01 Niko Sams wrote: >> Hi, >> >> -stack-list-locals doesn't return an numchild element. How can the IDE >> know if a local >> is has children? >> >> If there are children, they are listed in value: >> ^done,locals=[{name="list",value="QList = {[0] = \"hello\"}"}] >> >> Is it a good idea to parse the value with an regular expression to >> find out if there are children? > > It would be really nice if 'type' and 'numchild' information was directly > included in that "primary" output. The information is available on > the gdb side, so parsing it from the 'value' field does not really look > like a good solution in the long run. As I mention in other email, getting the number of children is in general impossible. Maybe, "has_children" flag would be more appropriate -- this is somewhat more likely to be computable. I am not sure it was you, but there was an IRC discussion about making -stack-list-locals also print type of things -- can you describe exactly how you gonna use that information, so that I have a chance to implement that properly? One important question is whether knowing a type of expression, without knowing its address, is gonna help you very much. - Volodya