1 /* $NetBSD: bug.h,v 1.4 2021/12/19 12:12:07 riastradh Exp $ */
2
3 /*-
4 * Copyright (c) 2013 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Taylor R. Campbell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #ifndef _ASM_BUG_H_
33 #define _ASM_BUG_H_
34
35 #include <sys/cdefs.h>
36 #include <sys/systm.h>
37
38 #include <linux/build_bug.h> /* XXX */
39
40 #define BUG() panic("%s:%d: BUG!", __FILE__, __LINE__)
41 #define BUG_ON(CONDITION) KASSERT(!(CONDITION))
42
43 /* XXX Rate limit? */
44 #define WARN(CONDITION, FMT, ...) \
45 linux_warning((CONDITION)? \
46 (printf("warning: %s:%d: " FMT, __FILE__, __LINE__, \
47 ##__VA_ARGS__), 1) \
48 : 0)
49
50 #define WARN_ONCE(CONDITION, FMT, ...) \
51 ({ \
52 static volatile unsigned __warn_once_done = 0; \
53 linux_warning((CONDITION) \
54 ? (atomic_swap_uint(&__warn_once_done, 1) == 0 \
55 ? (printf("warning: %s:%d: " FMT, __FILE__, __LINE__, \
56 ##__VA_ARGS__), 1) \
57 : 1) \
58 : 0); \
59 })
60
61 #define WARN_ON(CONDITION) WARN(CONDITION, "%s\n", #CONDITION)
62 #define WARN_ON_SMP(CONDITION) WARN_ON(CONDITION) /* XXX */
63 #define WARN_ON_ONCE(CONDITION) WARN_ONCE(CONDITION, "%s\n", #CONDITION)
64
65 /* XXX Kludge to avoid GCC warning about statements without effect. */
66 static inline int
linux_warning(int x)67 linux_warning(int x)
68 {
69 return x;
70 }
71
72 #endif /* _ASM_BUG_H_ */
73