1993/1124/pc/fault386.c (diff list | history)

pc/fault386.c on 1991/0710
1991/0710		#include "u.h"
1992/0321		#include "../port/lib.h"
1991/0710		#include "mem.h" #include "dat.h" #include "fns.h" #include "ureg.h"
1991/0711		#include "io.h"
1991/0710
1991/0719		int faulting;
1993/1124		static void fault386(Ureg *ur, void *arg)
1991/0710		{
1991/0718		ulong addr; int read; int user;
1991/0719		int n;
1991/0720		int insyscall;
1991/1112		char buf[ERRLEN];
1991/0718
1993/1124		USED(arg);
1993/0915		insyscall = up->insyscall; up->insyscall = 1;
1991/0718		addr = getcr2(); read = !(ur->ecode & 2);
1991/0809		user = (ur->cs&0xffff) == UESEL;
1992/0805		spllo();
1993/1113		/*print("F%d:A#%lux:U%d:R%d|", up->pid, addr, user, read);/**/
1991/0719		n = fault(addr, read); if(n < 0){
1991/0718		if(user){
1991/1218		sprint(buf, "sys: trap: fault %s addr=0x%lux", read? "read" : "write", addr);
1993/0915		postnote(up, 1, buf, NDebug);
1991/1112		return;
1991/0718		}
1993/1113		print("fault: 0x%lux", addr);
1991/0718		dumpregs(ur);
1991/0808		panic("fault: 0x%lux", addr);
1991/0718		}
1993/0915		up->insyscall = insyscall;
1991/0710		} void
1991/0718		faultinit(void)
1991/0710		{
1993/1124		setvec(Faultvec, fault386, 0);
1991/0710		}