blob: 14fae1fa87dfa3e177b46b0a830a2f01beb12f91 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _ASM_GENERIC_BUG_H
2#define _ASM_GENERIC_BUG_H
3
4#include <linux/compiler.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -07005
Matt Mackallc8538a72005-05-01 08:59:01 -07006#ifdef CONFIG_BUG
Jeremy Fitzhardinge7664c5a2006-12-08 02:36:19 -08007
8#ifdef CONFIG_GENERIC_BUG
9#ifndef __ASSEMBLY__
10struct 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 Torvalds1da177e2005-04-16 15:20:36 -070023#ifndef HAVE_ARCH_BUG
24#define BUG() do { \
Ingo Molnar91368d72006-03-23 03:00:54 -080025 printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 panic("BUG!"); \
27} while (0)
28#endif
29
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#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
Herbert Xu684f9782006-09-29 01:59:06 -070035#define WARN_ON(condition) ({ \
36 typeof(condition) __ret_warn_on = (condition); \
37 if (unlikely(__ret_warn_on)) { \
Ingo Molnar52e88f52006-12-29 16:47:10 -080038 printk("BUG: at %s:%d %s()\n", __FILE__, \
Herbert Xu684f9782006-09-29 01:59:06 -070039 __LINE__, __FUNCTION__); \
40 dump_stack(); \
41 } \
42 unlikely(__ret_warn_on); \
43})
Linus Torvalds1da177e2005-04-16 15:20:36 -070044#endif
45
Matt Mackallc8538a72005-05-01 08:59:01 -070046#else /* !CONFIG_BUG */
47#ifndef HAVE_ARCH_BUG
48#define BUG()
49#endif
50
Matt Mackallc8538a72005-05-01 08:59:01 -070051#ifndef HAVE_ARCH_BUG_ON
52#define BUG_ON(condition) do { if (condition) ; } while(0)
53#endif
54
55#ifndef HAVE_ARCH_WARN_ON
Ralf Baechle8c7c7c92006-10-19 23:28:34 -070056#define WARN_ON(condition) ({ \
57 typeof(condition) __ret_warn_on = (condition); \
58 unlikely(__ret_warn_on); \
59})
Matt Mackallc8538a72005-05-01 08:59:01 -070060#endif
61#endif
62
Andrew Mortond69a8922006-10-06 00:43:49 -070063#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); \
Ingo Molnar74bb6a02006-06-25 05:48:09 -070071})
72
Ingo Molnar8eb94f82006-06-27 02:54:50 -070073#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
Linus Torvalds1da177e2005-04-16 15:20:36 -070079#endif