make ANSI C compatible

fix panicstr printing; use KVTOPH instead of constants

use %x not %X

locate stack frame when debugging crash dumps

u.u_exdata is no more

Include <sys/stat.h> instead of <stat.h>. Tracks change in an uncontrolled branch

bug fixes to -w, output overflow, kernel debugging

works, still with prings

new attempt

non-working version

date and time created 81/05/14 15:19:58 by root