Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1#ifndef _ASM_GENERIC_BUG_H
2#define _ASM_GENERIC_BUG_H
3
4#include <linux/compiler.h>
5
6#ifdef CONFIG_BUG
7
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
23#ifndef HAVE_ARCH_BUG
24#define BUG() do { \
25 printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
26 panic("BUG!"); \
27} while (0)
28#endif
29
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
35#define WARN_ON(condition) ({ \
36 typeof(condition) __ret_warn_on = (condition); \
37 if (unlikely(__ret_warn_on)) { \
38 printk("BUG: at %s:%d %s()\n", __FILE__, \
39 __LINE__, __FUNCTION__); \
40 dump_stack(); \
41 } \
42 unlikely(__ret_warn_on); \
43})
44#endif
45
46#else /* !CONFIG_BUG */
47#ifndef HAVE_ARCH_BUG
48#define BUG()
49#endif
50
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
56#define WARN_ON(condition) ({ \
57 typeof(condition) __ret_warn_on = (condition); \
58 unlikely(__ret_warn_on); \
59})
60#endif
61#endif
62
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); \
71})
72
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
79#endif