Hello,

The attached updates the rs6000 so that (well for NetBSD, "elf" and 
GNU/Linux 32+64) it uses the frame unwinder.  It doesn't yet enable 
dwarf2-cfi.

Apart from the bug: Use right frame ID in step_over_function
http://sources.redhat.com/ml/gdb-patches/2004-02/msg00882.html
the conversion was highly mechanical..

Tested on NetBSD/PPC (which gets less failures) and GNU/Linux 32x64-bit 
and 64-bit (which get the same results).

ok? 6.1?

Andrew