The attached patch adds support for signal frame unwinding under
hppa64-hp-hpux11.11, and fixes a bug with signal frame unwinding under
hppa2.0w-hp-hpux11.11. I will commit this in a day or no if there are no
comments.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/