projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _ASM_GENERIC_BUG_H |
| 2 | #define _ASM_GENERIC_BUG_H | |
| 3 | ||
| 4 | #include <linux/compiler.h> | |
| 1da177e4 | 5 | |
| c8538a7a | 6 | #ifdef CONFIG_BUG |
| 7664c5a1 JF |
7 | |
| 8 | #ifdef CONFIG_GENERIC_BUG | |
| 9 | #ifndef __ASSEMBLY__ | |
| 10 | struct bug_entry { | |
| b93a531e | 11 | #ifndef CONFIG_GENERIC_BUG_RELATIVE_POINTERS |
| 7664c5a1 | 12 | unsigned long bug_addr; |
| b93a531e JB |
13 | #else |
| 14 | signed int bug_addr_disp; | |
| 15 | #endif | |
| 7664c5a1 | 16 | #ifdef CONFIG_DEBUG_BUGVERBOSE |
| b93a531e | 17 | #ifndef CONFIG_GENERIC_BUG_RELATIVE_POINTERS |
| 7664c5a1 | 18 | const char *file; |
| b93a531e JB |
19 | #else |
| 20 | signed int file_disp; | |
| 21 | #endif | |
| 7664c5a1 JF |
22 | unsigned short line; |
| 23 | #endif | |
| 24 | unsigned short flags; | |
| 25 | }; | |
| 26 | #endif /* __ASSEMBLY__ */ | |
| 27 | ||
| 28 | #define BUGFLAG_WARNING (1<<0) | |
| 29 | #endif /* CONFIG_GENERIC_BUG */ | |
| 30 | ||
| 1da177e4 LT |
31 | #ifndef HAVE_ARCH_BUG |
| 32 | #define BUG() do { \ | |
| d5c003b4 | 33 | printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \ |
| 1da177e4 LT |
34 | panic("BUG!"); \ |
| 35 | } while (0) | |
| 36 | #endif | |
| 37 | ||
| 1da177e4 | 38 | #ifndef HAVE_ARCH_BUG_ON |
| 2a41de48 | 39 | #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0) |
| 1da177e4 LT |
40 | #endif |
| 41 | ||
| 3a6a62f9 | 42 | #ifndef __WARN |
| 79b4cc5e | 43 | #ifndef __ASSEMBLY__ |
| a8f18b90 AV |
44 | extern void warn_slowpath(const char *file, const int line, |
| 45 | const char *fmt, ...) __attribute__((format(printf, 3, 4))); | |
| 79b4cc5e AV |
46 | #define WANT_WARN_ON_SLOWPATH |
| 47 | #endif | |
| ec5679e5 IM |
48 | #define __WARN() warn_slowpath(__FILE__, __LINE__, NULL) |
| 49 | #define __WARN_printf(arg...) warn_slowpath(__FILE__, __LINE__, arg) | |
| a8f18b90 | 50 | #else |
| ec5679e5 | 51 | #define __WARN_printf(arg...) do { printk(arg); __WARN(); } while (0) |
| 3a6a62f9 OJ |
52 | #endif |
| 53 | ||
| 54 | #ifndef WARN_ON | |
| 684f9783 | 55 | #define WARN_ON(condition) ({ \ |
| 8d4fbcfb | 56 | int __ret_warn_on = !!(condition); \ |
| 3a6a62f9 OJ |
57 | if (unlikely(__ret_warn_on)) \ |
| 58 | __WARN(); \ | |
| 684f9783 HX |
59 | unlikely(__ret_warn_on); \ |
| 60 | }) | |
| 1da177e4 LT |
61 | #endif |
| 62 | ||
| a8f18b90 AV |
63 | #ifndef WARN |
| 64 | #define WARN(condition, format...) ({ \ | |
| 65 | int __ret_warn_on = !!(condition); \ | |
| 66 | if (unlikely(__ret_warn_on)) \ | |
| 67 | __WARN_printf(format); \ | |
| 68 | unlikely(__ret_warn_on); \ | |
| 69 | }) | |
| 70 | #endif | |
| 71 | ||
| c8538a7a MM |
72 | #else /* !CONFIG_BUG */ |
| 73 | #ifndef HAVE_ARCH_BUG | |
| 74 | #define BUG() | |
| 75 | #endif | |
| 76 | ||
| c8538a7a MM |
77 | #ifndef HAVE_ARCH_BUG_ON |
| 78 | #define BUG_ON(condition) do { if (condition) ; } while(0) | |
| 79 | #endif | |
| 80 | ||
| 81 | #ifndef HAVE_ARCH_WARN_ON | |
| 8c7c7c9b | 82 | #define WARN_ON(condition) ({ \ |
| 8d4fbcfb | 83 | int __ret_warn_on = !!(condition); \ |
| 8c7c7c9b RB |
84 | unlikely(__ret_warn_on); \ |
| 85 | }) | |
| c8538a7a | 86 | #endif |
| a8f18b90 AV |
87 | |
| 88 | #ifndef WARN | |
| 89 | #define WARN(condition, format...) ({ \ | |
| 90 | int __ret_warn_on = !!(condition); \ | |
| 91 | unlikely(__ret_warn_on); \ | |
| 92 | }) | |
| 93 | #endif | |
| 94 | ||
| c8538a7a MM |
95 | #endif |
| 96 | ||
| d69a8922 AM |
97 | #define WARN_ON_ONCE(condition) ({ \ |
| 98 | static int __warned; \ | |
| 8d4fbcfb | 99 | int __ret_warn_once = !!(condition); \ |
| d69a8922 AM |
100 | \ |
| 101 | if (unlikely(__ret_warn_once)) \ | |
| 102 | if (WARN_ON(!__warned)) \ | |
| 103 | __warned = 1; \ | |
| 104 | unlikely(__ret_warn_once); \ | |
| 74bb6a09 IM |
105 | }) |
| 106 | ||
| 45e9c0de AV |
107 | #define WARN_ONCE(condition, format...) ({ \ |
| 108 | static int __warned; \ | |
| 109 | int __ret_warn_once = !!(condition); \ | |
| 110 | \ | |
| 111 | if (unlikely(__ret_warn_once)) \ | |
| 112 | if (WARN(!__warned, format)) \ | |
| 113 | __warned = 1; \ | |
| 114 | unlikely(__ret_warn_once); \ | |
| 115 | }) | |
| 116 | ||
| 717115e1 DY |
117 | #define WARN_ON_RATELIMIT(condition, state) \ |
| 118 | WARN_ON((condition) && __ratelimit(state)) | |
| 119 | ||
| 8eb94f80 IM |
120 | #ifdef CONFIG_SMP |
| 121 | # define WARN_ON_SMP(x) WARN_ON(x) | |
| 122 | #else | |
| 123 | # define WARN_ON_SMP(x) do { } while (0) | |
| 124 | #endif | |
| 125 | ||
| 1da177e4 | 126 | #endif |