Commit | Line | Data |
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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 | 30 | #ifndef HAVE_ARCH_BUG_ON |
2a41de48 | 31 | #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0) |
1da177e4 LT |
32 | #endif |
33 | ||
34 | #ifndef HAVE_ARCH_WARN_ON | |
684f9783 | 35 | #define WARN_ON(condition) ({ \ |
8d4fbcfb | 36 | int __ret_warn_on = !!(condition); \ |
684f9783 | 37 | if (unlikely(__ret_warn_on)) { \ |
8f53b6fc | 38 | printk("WARNING: at %s:%d %s()\n", __FILE__, \ |
684f9783 HX |
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 | 56 | #define WARN_ON(condition) ({ \ |
8d4fbcfb | 57 | int __ret_warn_on = !!(condition); \ |
8c7c7c9b RB |
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; \ | |
8d4fbcfb | 65 | int __ret_warn_once = !!(condition); \ |
d69a8922 AM |
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 |