From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gdb-return-15940-listarch-gdb=sources.redhat.com@sources.redhat.com>
Received: (qmail 1692 invoked by alias); 15 Oct 2003 20:14:02 -0000
Mailing-List: contact gdb-help@sources.redhat.com; run by ezmlm
Precedence: bulk
List-Subscribe: <mailto:gdb-subscribe@sources.redhat.com>
List-Archive: <http://sources.redhat.com/ml/gdb/>
List-Post: <mailto:gdb@sources.redhat.com>
List-Help: <mailto:gdb-help@sources.redhat.com>, <http://sources.redhat.com/ml/#faqs>
Sender: gdb-owner@sources.redhat.com
Received: (qmail 1684 invoked from network); 15 Oct 2003 20:14:02 -0000
Received: from unknown (HELO nevyn.them.org) (66.93.172.17)
  by sources.redhat.com with SMTP; 15 Oct 2003 20:14:02 -0000
Received: from drow by nevyn.them.org with local (Exim 4.24 #1 (Debian))
	id 1A9s1x-0000m2-8w; Wed, 15 Oct 2003 16:14:01 -0400
Date: Wed, 15 Oct 2003 20:14:00 -0000
From: Daniel Jacobowitz <drow@mvista.com>
To: Jack J <get_info101@yahoo.com>
Cc: gdb@sources.redhat.com
Subject: Re: debugging dynamic link/load code on Linux
Message-ID: <20031015201401.GA2425@nevyn.them.org>
Mail-Followup-To: Jack J <get_info101@yahoo.com>, gdb@sources.redhat.com
References: <20031015201057.77923.qmail@web20510.mail.yahoo.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20031015201057.77923.qmail@web20510.mail.yahoo.com>
User-Agent: Mutt/1.5.1i
X-SW-Source: 2003-10/txt/msg00205.txt.bz2

On Wed, Oct 15, 2003 at 01:10:57PM -0700, Jack J wrote:
> Hi,
> 
> I am new to gdb mailing list.
> I have a question and if this list is not appropriate,
> please apologize.  I am hoping someone can shed some
> light with helpful tips and pointers.
> 
> question: How do I set a breakpoint in a module/code
> which is dynamically linked/loaded in Linux ?
> 
> I tried setting a breaking point (in gdb) after 
> dlsym() but, gdb still complains of function not
> found.
> I did have it compiled with "-g" gcc option.
> 
> -- gdb output--
> 
> (gdb) b test_routine
> Function "test_routine" not defined.
> (gdb) l test_routine
> Function "test_routine" not defined.

Once the library has been loaded you should be able to.  Can you build
a small testcase, and a complete session transcript that show the
problem?

Does "info shared" show the module?

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer