1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2019 Mariusz Zaborski <oshogbo@FreeBSD.org>
24 * Use is subject to license terms.
25 */
26
27 void frax(void);
28
29 __attribute__((optnone)) void
frax(void)30 frax(void)
31 {
32 asm volatile("mov $0x41414141, %%rax"
33 : : : "rax"
34 );
35 }
36
37 int
main(void)38 main(void)
39 {
40
41 while (1) {
42 frax();
43 }
44 return (0);
45 }
46