xexit
xexit(0);
xexit(s ? getn(s) : 0);
xexit(sig);
xexit(1);
xexit(1);
void xexit(int);
xexit(1);
xexit(0);
exit1(struct proc *p, int xexit, int xsig, int flags)
panic("init died (signal %d, exit %d)", xsig, xexit);
pr->ps_xexit = xexit;