Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _ASM_GENERIC_BUG_H |
| 2 | #define _ASM_GENERIC_BUG_H |
| 3 | |
| 4 | #include <linux/compiler.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | |
Matt Mackall | c8538a7 | 2005-05-01 08:59:01 -0700 | [diff] [blame] | 6 | #ifdef CONFIG_BUG |
Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 7 | |
| 8 | #ifdef CONFIG_GENERIC_BUG |
| 9 | #ifndef __ASSEMBLY__ |
| 10 | struct bug_entry { |
| 11 | unsigned long bug_addr; |
| 12 | #ifdef CONFIG_DEBUG_BUGVERBOSE |
| 13 | const char *file; |
| 14 | unsigned short line; |
| 15 | #endif |
| 16 | unsigned short flags; |
| 17 | }; |
| 18 | #endif /* __ASSEMBLY__ */ |
| 19 | |
| 20 | #define BUGFLAG_WARNING (1<<0) |
| 21 | #endif /* CONFIG_GENERIC_BUG */ |
| 22 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #ifndef HAVE_ARCH_BUG |
| 24 | #define BUG() do { \ |
Harvey Harrison | d5c003b | 2008-10-15 22:01:24 -0700 | [diff] [blame] | 25 | printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | panic("BUG!"); \ |
| 27 | } while (0) |
| 28 | #endif |
| 29 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #ifndef HAVE_ARCH_BUG_ON |
Alexey Dobriyan | 2a41de4 | 2007-07-17 04:03:56 -0700 | [diff] [blame] | 31 | #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #endif |
| 33 | |
Olof Johansson | 3a6a62f9 | 2008-01-30 13:32:50 +0100 | [diff] [blame] | 34 | #ifndef __WARN |
Arjan van de Ven | 79b4cc5 | 2008-01-30 13:32:50 +0100 | [diff] [blame] | 35 | #ifndef __ASSEMBLY__ |
Arjan van de Ven | a8f18b9 | 2008-07-25 01:45:53 -0700 | [diff] [blame] | 36 | extern void warn_slowpath(const char *file, const int line, |
| 37 | const char *fmt, ...) __attribute__((format(printf, 3, 4))); |
Arjan van de Ven | 79b4cc5 | 2008-01-30 13:32:50 +0100 | [diff] [blame] | 38 | #define WANT_WARN_ON_SLOWPATH |
| 39 | #endif |
Ingo Molnar | ec5679e | 2008-11-28 17:56:14 +0100 | [diff] [blame^] | 40 | #define __WARN() warn_slowpath(__FILE__, __LINE__, NULL) |
| 41 | #define __WARN_printf(arg...) warn_slowpath(__FILE__, __LINE__, arg) |
Arjan van de Ven | a8f18b9 | 2008-07-25 01:45:53 -0700 | [diff] [blame] | 42 | #else |
Ingo Molnar | ec5679e | 2008-11-28 17:56:14 +0100 | [diff] [blame^] | 43 | #define __WARN_printf(arg...) do { printk(arg); __WARN(); } while (0) |
Olof Johansson | 3a6a62f9 | 2008-01-30 13:32:50 +0100 | [diff] [blame] | 44 | #endif |
| 45 | |
| 46 | #ifndef WARN_ON |
Herbert Xu | 684f978 | 2006-09-29 01:59:06 -0700 | [diff] [blame] | 47 | #define WARN_ON(condition) ({ \ |
Linus Torvalds | 8d4fbcf | 2007-07-31 21:12:07 -0700 | [diff] [blame] | 48 | int __ret_warn_on = !!(condition); \ |
Olof Johansson | 3a6a62f9 | 2008-01-30 13:32:50 +0100 | [diff] [blame] | 49 | if (unlikely(__ret_warn_on)) \ |
| 50 | __WARN(); \ |
Herbert Xu | 684f978 | 2006-09-29 01:59:06 -0700 | [diff] [blame] | 51 | unlikely(__ret_warn_on); \ |
| 52 | }) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | #endif |
| 54 | |
Arjan van de Ven | a8f18b9 | 2008-07-25 01:45:53 -0700 | [diff] [blame] | 55 | #ifndef WARN |
| 56 | #define WARN(condition, format...) ({ \ |
| 57 | int __ret_warn_on = !!(condition); \ |
| 58 | if (unlikely(__ret_warn_on)) \ |
| 59 | __WARN_printf(format); \ |
| 60 | unlikely(__ret_warn_on); \ |
| 61 | }) |
| 62 | #endif |
| 63 | |
Matt Mackall | c8538a7 | 2005-05-01 08:59:01 -0700 | [diff] [blame] | 64 | #else /* !CONFIG_BUG */ |
| 65 | #ifndef HAVE_ARCH_BUG |
| 66 | #define BUG() |
| 67 | #endif |
| 68 | |
Matt Mackall | c8538a7 | 2005-05-01 08:59:01 -0700 | [diff] [blame] | 69 | #ifndef HAVE_ARCH_BUG_ON |
| 70 | #define BUG_ON(condition) do { if (condition) ; } while(0) |
| 71 | #endif |
| 72 | |
| 73 | #ifndef HAVE_ARCH_WARN_ON |
Ralf Baechle | 8c7c7c9 | 2006-10-19 23:28:34 -0700 | [diff] [blame] | 74 | #define WARN_ON(condition) ({ \ |
Linus Torvalds | 8d4fbcf | 2007-07-31 21:12:07 -0700 | [diff] [blame] | 75 | int __ret_warn_on = !!(condition); \ |
Ralf Baechle | 8c7c7c9 | 2006-10-19 23:28:34 -0700 | [diff] [blame] | 76 | unlikely(__ret_warn_on); \ |
| 77 | }) |
Matt Mackall | c8538a7 | 2005-05-01 08:59:01 -0700 | [diff] [blame] | 78 | #endif |
Arjan van de Ven | a8f18b9 | 2008-07-25 01:45:53 -0700 | [diff] [blame] | 79 | |
| 80 | #ifndef WARN |
| 81 | #define WARN(condition, format...) ({ \ |
| 82 | int __ret_warn_on = !!(condition); \ |
| 83 | unlikely(__ret_warn_on); \ |
| 84 | }) |
| 85 | #endif |
| 86 | |
Matt Mackall | c8538a7 | 2005-05-01 08:59:01 -0700 | [diff] [blame] | 87 | #endif |
| 88 | |
Andrew Morton | d69a892 | 2006-10-06 00:43:49 -0700 | [diff] [blame] | 89 | #define WARN_ON_ONCE(condition) ({ \ |
| 90 | static int __warned; \ |
Linus Torvalds | 8d4fbcf | 2007-07-31 21:12:07 -0700 | [diff] [blame] | 91 | int __ret_warn_once = !!(condition); \ |
Andrew Morton | d69a892 | 2006-10-06 00:43:49 -0700 | [diff] [blame] | 92 | \ |
| 93 | if (unlikely(__ret_warn_once)) \ |
| 94 | if (WARN_ON(!__warned)) \ |
| 95 | __warned = 1; \ |
| 96 | unlikely(__ret_warn_once); \ |
Ingo Molnar | 74bb6a0 | 2006-06-25 05:48:09 -0700 | [diff] [blame] | 97 | }) |
| 98 | |
Arjan van de Ven | 45e9c0d | 2008-09-15 16:43:18 -0700 | [diff] [blame] | 99 | #define WARN_ONCE(condition, format...) ({ \ |
| 100 | static int __warned; \ |
| 101 | int __ret_warn_once = !!(condition); \ |
| 102 | \ |
| 103 | if (unlikely(__ret_warn_once)) \ |
| 104 | if (WARN(!__warned, format)) \ |
| 105 | __warned = 1; \ |
| 106 | unlikely(__ret_warn_once); \ |
| 107 | }) |
| 108 | |
Dave Young | 717115e | 2008-07-25 01:45:58 -0700 | [diff] [blame] | 109 | #define WARN_ON_RATELIMIT(condition, state) \ |
| 110 | WARN_ON((condition) && __ratelimit(state)) |
| 111 | |
Ingo Molnar | 8eb94f8 | 2006-06-27 02:54:50 -0700 | [diff] [blame] | 112 | #ifdef CONFIG_SMP |
| 113 | # define WARN_ON_SMP(x) WARN_ON(x) |
| 114 | #else |
| 115 | # define WARN_ON_SMP(x) do { } while (0) |
| 116 | #endif |
| 117 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | #endif |