This is used by the i386, hp300 and mac68k ports.
- Added exec_aout_prep_oldomagic, and exec_aout_prep_oldnmagic
These are just copies of the respective prep functions from
kern_exec.c with text address starting at 0. Maybe a better fix
is to pass the starting address as a third argument so we don't
duplicate code, but this could be the next pass since the functions
are used in many places. These functions are used for BSDI binaries.
- 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.
christos