UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some
minor portions derived from the old Mach code. i provided some help
getting swap and paging working, and other bug fixes/ideas. chuck
silvers <chuq@chuq.com> also provided some other fixes.
this is the rest of the MI portion changes.
this will be KNF'd shortly. :-)
calling uname(3) can find out what os it is running on. Tested only with a
bsdi binary that calls getkerninfo directly. Funny thing is that I ran
the same binary on a bsdi machine, and they fill in fewer fields in the
emulation than we do; maybe I went overboard :-)
- Created compat_util.c and compat_util.h to be used by the compatibility
modules, so they don't duplicate the same code.
- Added prototypes to the stackgap allocation routines.