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 67 linux_warning(int x) 68 { 69 return x; 70 } 71 72 #endif /* _ASM_BUG_H_ */ 73