[libunwind] libunwind for powerpc?

[Nemura Blake-BNEMURA1]

I've been using libunwind on IA64 and its great stuff. But for ppc we're stuck 
with backtrace()/dladdr() and it just doesn't cut it.
Wondering if anyone has already or is planning to port libunwind for powerpc 
architecture?

Thanks,
Blake

+---------------------------------------+
  Blake Nemura                          
  Sr. Software Engineer                 
  HAP Development Group                 
  Motorola, Inc.                        
+---------------------------------------+
"One of the main causes of the fall of the Roman Empire was that, lacking zero, 
they had no way to indicate successful termination of their C programs." 
(Robert Firth)