FreeBSD/Linux Kernel Cross Reference
sys/i386/i386/atomic.c
1 /*-
2 * Copyright (c) 1999 Peter Jeremy
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD: releng/11.2/sys/i386/i386/atomic.c 331722 2018-03-29 02:50:57Z eadler $");
29
30 /* This file creates publically callable functions to perform various
31 * simple arithmetic on memory which is atomic in the presence of
32 * interrupts and multiple processors.
33 */
34 #include <sys/types.h>
35
36 /* Firstly make atomic.h generate prototypes as it will for kernel modules */
37 #define KLD_MODULE
38 #include <machine/atomic.h>
39 #undef _MACHINE_ATOMIC_H_ /* forget we included it */
40 #undef KLD_MODULE
41 #undef ATOMIC_ASM
42
43 /* Make atomic.h generate public functions */
44 #define WANT_FUNCTIONS
45 #define static
46 #undef __inline
47 #define __inline
48
49 #include <machine/atomic.h>
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