add definition for ability to produce a backtrace
add cpu_swapin (nothing needed)
add cpu_set_init_frame to initialize init's syscall frame
changes for 4.4BSD-Lite requested by USL
4.4BSD snapshot (revision 8.1); add 1993 to copyright
add cpu sysctl definitions; protect kernel stuff against user inclusion
spelling
make kernel includes standard
update the contribution notice; LBL requires acknowledgement
date and time created 92/07/13 00:42:59 by torek