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Re: debug dynamically linked modules..
- From: Daniel Jacobowitz <drow at mvista dot com>
- To: Jack J <get_info101 at yahoo dot com>
- Cc: gdb at sources dot redhat dot com
- Date: Thu, 16 Oct 2003 15:44:43 -0400
- Subject: Re: debug dynamically linked modules..
- References: <20031016193935.98962.qmail@web20507.mail.yahoo.com>
On Thu, Oct 16, 2003 at 12:39:35PM -0700, Jack J wrote:
> Hi,
>
> I would like to know how to debug using gdb
> (set breakpoint on routine, etc.) a dynmically linked,
> relocated code.
>
> The platform is RH Linux 9.0. There is some
> application
> module compiled with -fPIC and -shared, and
> -export-dynamic options.
> A global structure containing functions is exported by
> the DLL module.
> The problem: I would like to set breakpoint on one
> of the (file static) functions contained in this
> structure.
>
> >From mainline code after call to dlsym(..) (to the
> global structure), I try to set break point, and I
> get error: "Function xxx not defined.".
>
> I do 'info shared' on gdb and do see the file being
> loaded. Also I do see that "-g" option to add
> debug symbols in gcc.
>
> Is there anything I am missing ? How does one
> normally use gdb in such scenario ?
>
> Any tips, pointers/hints is appreciated.
We'd need to see a complete testcase.
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer