atomic.c revision 115683
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 28#include <sys/cdefs.h> 29__FBSDID("$FreeBSD: head/sys/i386/i386/atomic.c 115683 2003-06-02 06:43:15Z obrien $"); 30 31/* This file creates publically callable functions to perform various 32 * simple arithmetic on memory which is atomic in the presence of 33 * interrupts and multiple processors. 34 */ 35#include <sys/types.h> 36 37/* Firstly make atomic.h generate prototypes as it will for kernel modules */ 38#define KLD_MODULE 39#include <machine/atomic.h> 40#undef _MACHINE_ATOMIC_H_ /* forget we included it */ 41#undef KLD_MODULE 42#undef ATOMIC_ASM 43 44/* Make atomic.h generate public functions */ 45#define WANT_FUNCTIONS 46#define static 47#undef __inline 48#define __inline 49 50#include <machine/atomic.h> 51