Hello,

The attached adds a really simple BFD "target" and is used:

	bfd = bfd_open.. (...);
	targ = target_bfd_reopen (bfd)
	... operation involving targ ...
	target_close (targ, 0);

Looking at solib-svr4, this object makes it possible to change this:

   load_addr = read_pc () - tmp_bfd->start_address;

into this:

   load_addr = (read_pc ()
                - gdbarch_convert_from_func_ptr_addr (current_gdbarch, 
 
bfd_get_start_address (tmp_bfd), 
                  tmp_bfd_target));

i.e., pointer conversion is performed using the original executable and 
not the running program.  Something needed to fix PPC64 needs.

thoughts?
I'll look to commit this in a few days,

Andrew