1992/0616/pc/trap.c (diff list | history)

1992/0609/sys/src/9/pc/trap.c:404,417 – 1992/0616/sys/src/9/pc/trap.c:404,415 (short | long | prev | next)
1991/0720		u->svflags = ur->flags; sp = ur->usp; sp -= sizeof(Ureg);
1991/0722		if(waserror()){ pprint("suicide: trap in notify\n");
1992/0616		if(!okaddr((ulong)u->notify, 1, 0) || !okaddr(sp-ERRLEN-3*BY2WD, sizeof(Ureg)+ERRLEN-3*BY2WD, 0)){ pprint("suicide: bad address in notify\n");
1991/1216		qunlock(&u->p->debug);
1991/0722		pexit("Suicide", 0); } validaddr((ulong)u->notify, 1, 0); validaddr(sp-ERRLEN-3*BY2WD, sizeof(Ureg)+ERRLEN-3*BY2WD, 0); poperror();
1991/0720		u->ureg = (void*)sp; memmove((Ureg*)sp, ur, sizeof(Ureg)); sp -= ERRLEN;
1992/0609/sys/src/9/pc/trap.c:459,472 – 1992/0616/sys/src/9/pc/trap.c:457,467
1992/0609		memmove(ur, nur, sizeof(Ureg));
1991/0720		switch(arg0){ case NCONT:
1991/0814		if(waserror()){
1992/0616		if(!okaddr(nur->pc, 1, 0) || !okaddr(nur->usp, BY2WD, 0)){
1991/0814		pprint("suicide: trap in noted\n");
1991/1216		qunlock(&u->p->debug);
1991/0814		goto Die; }
1992/0609		validaddr(nur->pc, 1, 0); /* check for valid pc & usp */
1991/0814		validaddr(nur->usp, BY2WD, 0); poperror();
1991/1216		qunlock(&u->p->debug);
1991/0722		return;
1991/0720