Re: catch throw -how?

[Daniel Jacobowitz <drow@mvista.com>]

On Tue, Jan 28, 2003 at 04:35:14PM +0100, Markus Werle wrote:
> Hi!
> 
> Using gdb-5.1.1 I wanted to use the "catch" feature for C++ exceptions like this
> 
> # gdb ./myprogram
> GNU gdb 5.1.1
> Copyright 2002 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "i686-pc-linux-gnu"...
> (gdb) catch throw
> You can't do that without a process to debug.
> (gdb)
> 
> 1. I do not understand the error message, please explain
> 2. Is this a bug resolved in gdb-5.3 or am I missing some information?

I don't think that "catch throw" works on any GNU/Linux target right
now.  I've got it about half re-implemented for GCC 3.x in a scratch
directory right now but I don't know when I'm going to have time to
test it.

You can get just about the same effect in GCC 3.x by putting a
breakpoint on __cxa_throw.  In 2.x I think it was __throw.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer