/* * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * Further, this software is distributed without any warranty that it is * free of the rightful claim of any third person regarding infringement * or the like. Any license provided herein, whether implied or * otherwise, applies only to this software file. Patent licenses, if * any, provided herein do not apply to combinations of this program with * other software, or any other product whatsoever. * * You should have received a copy of the GNU General Public License along * with this program; if not, write the Free Software Foundation, Inc., 59 * Temple Place - Suite 330, Boston MA 02111-1307, USA. * * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, * Mountain View, CA 94043, or: * * http://www.sgi.com * * For further information regarding this notice, see: * * http://oss.sgi.com/projects/GenInfo/NoticeExplan/ * */ /* $Id: f00f.c,v 1.2 2001/02/28 17:42:00 nstraz Exp $ */ /* * This is a simple test for handling of the pentium f00f bug. * It is an example of a catistrophic test case. If the system * doesn't correctly handle this test, it will likely lockup. */ #include <signal.h> #include <stdio.h> #include <stdlib.h> #ifdef __i386__ /* * an f00f instruction */ char x[5] = { 0xf0, 0x0f, 0xc7, 0xc8 }; void sigill (int sig) { printf ("SIGILL received from f00f instruction. Good.\n"); exit (0); } int main () { void (*f) () = (void *) x; signal (SIGILL, sigill); printf ("Testing for proper f00f instruction handling.\n"); f (); /* * we shouldn't get here, the f00f instruction should trigger * a SIGILL or lock the system. */ exit (1); } #else /* __i386__ */ int main () { printf ("f00f bug test only for i386\n"); exit (0); } #endif /* __i386__ */