projects / mirror_ubuntu-artful-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 { | |
| 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 | ||
| 1da177e4 LT |
23 | #ifndef HAVE_ARCH_BUG |
| 24 | #define BUG() do { \ | |
| 91368d73 | 25 | printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \ |
| 1da177e4 LT |
26 | panic("BUG!"); \ |
| 27 | } while (0) | |
| 28 | #endif | |
| 29 | ||
| 1da177e4 LT |
30 | #ifndef HAVE_ARCH_BUG_ON |
| 31 | #define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0) | |
| 32 | #endif | |
| 33 | ||
| 34 | #ifndef HAVE_ARCH_WARN_ON | |
| 684f9783 HX |
35 | #define WARN_ON(condition) ({ \ |
| 36 | typeof(condition) __ret_warn_on = (condition); \ | |
| 37 | if (unlikely(__ret_warn_on)) { \ | |
| 38 | printk("BUG: warning at %s:%d/%s()\n", __FILE__, \ | |
| 39 | __LINE__, __FUNCTION__); \ | |
| 40 | dump_stack(); \ | |
| 41 | } \ | |
| 42 | unlikely(__ret_warn_on); \ | |
| 43 | }) | |
| 1da177e4 LT |
44 | #endif |
| 45 | ||
| c8538a7a MM |
46 | #else /* !CONFIG_BUG */ |
| 47 | #ifndef HAVE_ARCH_BUG | |
| 48 | #define BUG() | |
| 49 | #endif | |
| 50 | ||
| c8538a7a MM |
51 | #ifndef HAVE_ARCH_BUG_ON |
| 52 | #define BUG_ON(condition) do { if (condition) ; } while(0) | |
| 53 | #endif | |
| 54 | ||
| 55 | #ifndef HAVE_ARCH_WARN_ON | |
| 8c7c7c9b RB |
56 | #define WARN_ON(condition) ({ \ |
| 57 | typeof(condition) __ret_warn_on = (condition); \ | |
| 58 | unlikely(__ret_warn_on); \ | |
| 59 | }) | |
| c8538a7a MM |
60 | #endif |
| 61 | #endif | |
| 62 | ||
| d69a8922 AM |
63 | #define WARN_ON_ONCE(condition) ({ \ |
| 64 | static int __warned; \ | |
| 65 | typeof(condition) __ret_warn_once = (condition); \ | |
| 66 | \ | |
| 67 | if (unlikely(__ret_warn_once)) \ | |
| 68 | if (WARN_ON(!__warned)) \ | |
| 69 | __warned = 1; \ | |
| 70 | unlikely(__ret_warn_once); \ | |
| 74bb6a09 IM |
71 | }) |
| 72 | ||
| 8eb94f80 IM |
73 | #ifdef CONFIG_SMP |
| 74 | # define WARN_ON_SMP(x) WARN_ON(x) | |
| 75 | #else | |
| 76 | # define WARN_ON_SMP(x) do { } while (0) | |
| 77 | #endif | |
| 78 | ||
| 1da177e4 | 79 | #endif |