dump_stack: unify debug information printed by show_regs()
[linux-3.10.git] / arch / x86 / include / asm / bug.h
1 #ifndef _ASM_X86_BUG_H
2 #define _ASM_X86_BUG_H
3
4 #ifdef CONFIG_BUG
5 #define HAVE_ARCH_BUG
6
7 #ifdef CONFIG_DEBUG_BUGVERBOSE
8
9 #ifdef CONFIG_X86_32
10 # define __BUG_C0       "2:\t.long 1b, %c0\n"
11 #else
12 # define __BUG_C0       "2:\t.long 1b - 2b, %c0 - 2b\n"
13 #endif
14
15 #define BUG()                                                   \
16 do {                                                            \
17         asm volatile("1:\tud2\n"                                \
18                      ".pushsection __bug_table,\"a\"\n"         \
19                      __BUG_C0                                   \
20                      "\t.word %c1, 0\n"                         \
21                      "\t.org 2b+%c2\n"                          \
22                      ".popsection"                              \
23                      : : "i" (__FILE__), "i" (__LINE__),        \
24                      "i" (sizeof(struct bug_entry)));           \
25         unreachable();                                          \
26 } while (0)
27
28 #else
29 #define BUG()                                                   \
30 do {                                                            \
31         asm volatile("ud2");                                    \
32         unreachable();                                          \
33 } while (0)
34 #endif
35
36 #endif /* !CONFIG_BUG */
37
38 #include <asm-generic/bug.h>
39
40 #endif /* _ASM_X86_BUG_H */