Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
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)) BUG(); } while(0)
32#endif
33
34#ifndef __WARN
35#ifndef __ASSEMBLY__
36extern void warn_on_slowpath(const char *file, const int line);
37#define WANT_WARN_ON_SLOWPATH
38#endif
39#define __WARN() warn_on_slowpath(__FILE__, __LINE__)
40#endif
41
42#ifndef WARN_ON
43#define WARN_ON(condition) ({ \
44 int __ret_warn_on = !!(condition); \
45 if (unlikely(__ret_warn_on)) \
46 __WARN(); \
47 unlikely(__ret_warn_on); \
48})
49#endif
50
51#else /* !CONFIG_BUG */
52#ifndef HAVE_ARCH_BUG
53#define BUG()
54#endif
55
56#ifndef HAVE_ARCH_BUG_ON
57#define BUG_ON(condition) do { if (condition) ; } while(0)
58#endif
59
60#ifndef HAVE_ARCH_WARN_ON
61#define WARN_ON(condition) ({ \
62 int __ret_warn_on = !!(condition); \
63 unlikely(__ret_warn_on); \
64})
65#endif
66#endif
67
68#define WARN_ON_ONCE(condition) ({ \
69 static int __warned; \
70 int __ret_warn_once = !!(condition); \
71 \
72 if (unlikely(__ret_warn_once)) \
73 if (WARN_ON(!__warned)) \
74 __warned = 1; \
75 unlikely(__ret_warn_once); \
76})
77
78#ifdef CONFIG_SMP
79# define WARN_ON_SMP(x) WARN_ON(x)
80#else
81# define WARN_ON_SMP(x) do { } while (0)
82#endif
83
84#endif