summaryrefslogtreecommitdiffstats
path: root/arch/x86/include/asm/bug.h
blob: f654d1bb17fb6cf3f0199dd820bd2da2f8b52901 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
#ifndef _ASM_X86_BUG_H
#define _ASM_X86_BUG_H

#ifdef CONFIG_BUG
#define HAVE_ARCH_BUG

#ifdef CONFIG_DEBUG_BUGVERBOSE

#ifdef CONFIG_X86_32
# define __BUG_C0	"2:\t.long 1b, %c0\n"
#else
# define __BUG_C0	"2:\t.long 1b - 2b, %c0 - 2b\n"
#endif

#define BUG()							\
do {								\
	asm volatile("1:\tud2\n"				\
		     ".pushsection __bug_table,\"a\"\n"		\
		     __BUG_C0					\
		     "\t.word %c1, 0\n"				\
		     "\t.org 2b+%c2\n"				\
		     ".popsection"				\
		     : : "i" (__FILE__), "i" (__LINE__),	\
		     "i" (sizeof(struct bug_entry)));		\
	unreachable();						\
} while (0)

#else
#define BUG()							\
do {								\
	asm volatile("ud2");					\
	unreachable();						\
} while (0)
#endif

#endif /* !CONFIG_BUG */

#include <asm-generic/bug.h>
#endif /* _ASM_X86_BUG_H */