| Jean-Baptiste Queru | c559cd8 | 2009-10-12 10:24:29 -0700 | [diff] [blame] | 1 | #ifndef _ASM_GENERIC_BUG_H |
| 2 | #define _ASM_GENERIC_BUG_H |
| 3 | |
| 4 | #include <linux/compiler.h> |
| 5 | |
| 6 | #ifdef CONFIG_BUG |
| 7 | #ifndef HAVE_ARCH_BUG |
| 8 | #define BUG() do { \ |
| 9 | printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \ |
| 10 | panic("BUG!"); \ |
| 11 | } while (0) |
| 12 | #endif |
| 13 | |
| 14 | #ifndef HAVE_ARCH_BUG_ON |
| 15 | #define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0) |
| 16 | #endif |
| 17 | |
| 18 | #ifndef HAVE_ARCH_WARN_ON |
| 19 | #define WARN_ON(condition) do { \ |
| 20 | if (unlikely((condition)!=0)) { \ |
| 21 | printk("BUG: warning at %s:%d/%s()\n", __FILE__, __LINE__, __FUNCTION__); \ |
| 22 | dump_stack(); \ |
| 23 | } \ |
| 24 | } while (0) |
| 25 | #endif |
| 26 | |
| 27 | #else /* !CONFIG_BUG */ |
| 28 | #ifndef HAVE_ARCH_BUG |
| 29 | #define BUG() |
| 30 | #endif |
| 31 | |
| 32 | #ifndef HAVE_ARCH_BUG_ON |
| 33 | #define BUG_ON(condition) do { if (condition) ; } while(0) |
| 34 | #endif |
| 35 | |
| 36 | #ifndef HAVE_ARCH_WARN_ON |
| 37 | #define WARN_ON(condition) do { if (condition) ; } while(0) |
| 38 | #endif |
| 39 | #endif |
| 40 | |
| 41 | #define WARN_ON_ONCE(condition) \ |
| 42 | ({ \ |
| 43 | static int __warn_once = 1; \ |
| 44 | int __ret = 0; \ |
| 45 | \ |
| 46 | if (unlikely((condition) && __warn_once)) { \ |
| 47 | __warn_once = 0; \ |
| 48 | WARN_ON(1); \ |
| 49 | __ret = 1; \ |
| 50 | } \ |
| 51 | __ret; \ |
| 52 | }) |
| 53 | |
| 54 | #ifdef CONFIG_SMP |
| 55 | # define WARN_ON_SMP(x) WARN_ON(x) |
| 56 | #else |
| 57 | # define WARN_ON_SMP(x) do { } while (0) |
| 58 | #endif |
| 59 | |
| 60 | #endif |