extract debuginfo for Xorg backtraces

[Nick Clifton]

Hi Elmar,

> It works well for everything in /usr/bin/Xorg. However as the
> backtrace meets a shared library (libc.so, radeon_drv.so,
> evdev_drv.so) the symtab does not contain any section that would
> include the given addresses/+offsets.

How about the dynamic symbol table ?

I suggest that you have a look at the GDB code base to see how symbols 
in shared libraries are handled there.

Cheers
   Nick