/*
* 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()
{
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()
{
tst_brkm(TCONF, NULL, "f00f bug test only for i386");
}
#endif /* __i386__ */