From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15412 invoked by alias); 16 Feb 2003 18:16:01 -0000 Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-prs-owner@gcc.gnu.org Received: (qmail 15392 invoked by uid 71); 16 Feb 2003 18:16:01 -0000 Date: Sun, 16 Feb 2003 18:16:00 -0000 Message-ID: <20030216181601.15391.qmail@sources.redhat.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, From: Daniel Jacobowitz Subject: Re: c++/8542: GBD broken under gcc 3.2 - can't print any local variables or class members Reply-To: Daniel Jacobowitz X-SW-Source: 2003-02/txt/msg00701.txt.bz2 List-Id: The following reply was made to PR c++/8542; it has been noted by GNATS. From: Daniel Jacobowitz To: Ron Eastman Cc: karinc@adsmr.co.za, gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org Subject: Re: c++/8542: GBD broken under gcc 3.2 - can't print any local variables or class members Date: Sun, 16 Feb 2003 13:10:42 -0500 Ron, FYI, your problem is different from the originally reported problem in this PR (which I still haven't looked at...). If you get a CVS version of GDB, I think you'll be able to see local variables again (most of the time). The most complex cases still don't work quite right. On Tue, Nov 19, 2002 at 11:17:33AM -0800, Ron Eastman wrote: > Salutations, > > I've been having the same problem with gcc 3.2 and gdb... > > I don't know whether this will be of much use to anyone, but after some > amount of experimentation it seems to me that the problem is related in > somehow to objects which have destructors (or constructors?). Unfortunately > the code I am working on is large and proprietary, so I can't provide you > with an example as I would like. What I found --by removing all the code > from main() and then adding it back bit by bit--is that a certain point was > reached where, if I added just one additional declaration (e.g. "string > datapath;") then when compiled and fired up in gdb, the local variables are > not visible. Remove that one declaration, and they are. I don't think there > was anything wrong with that particular declaration--other string variables > were declared further up in main. Furthermore, if instead of "string > datapath" I put in "double foo;", then local variables ARE visible. "double" > has no destructor. Make it "vector foo;" and the problem returns. I tried > several different objects with constructors/destructors and reliably > reproduced the problem. Note also that: if I put braces around the > declaration ("{string foo;}") then the problem disappeared. > > I hope this helps. > > Ron Eastman > > http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&p > r=8542 > > > Ronald G. Eastman > Schonfeld Securities LLC > 2185 North California Boulevard > Suite 320, Walnut Creek, CA 94596 > (925) 256-2464 > (925) 256-4548 (fax) > ron_eastman@schonfeld.com > -- Daniel Jacobowitz MontaVista Software Debian GNU/Linux Developer