LXR linux/arch/x86/include/asm/bug.h

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