| /* |
| * 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., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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 1.5 2008/04/24 06:36:14 subrata_modak 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> |
| #include "test.h" |
| |
| char *TCID = "f00f"; |
| int TST_TOTAL = 1; |
| |
| #ifdef __i386__ |
| |
| void sigill(int sig) |
| { |
| tst_resm(TPASS, "SIGILL received from f00f instruction. Good."); |
| tst_exit(); |
| } |
| |
| int main(void) |
| { |
| signal(SIGILL, sigill); |
| tst_resm(TINFO, "Testing for proper f00f instruction handling."); |
| |
| /* |
| * an f00f instruction |
| */ |
| asm volatile (".byte 0xf0\n" |
| ".byte 0x0f\n" ".byte 0xc7\n" ".byte 0xc8\n"); |
| |
| /* |
| * we shouldn't get here, the f00f instruction should trigger |
| * a SIGILL or lock the system. |
| */ |
| tst_brkm(TFAIL, NULL, |
| "f00f instruction did not properly cause SIGILL"); |
| } |
| |
| #else /* __i386__ */ |
| |
| int main(void) |
| { |
| tst_brkm(TCONF, NULL, "f00f bug test only for i386"); |
| } |
| |
| #endif /* __i386__ */ |