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 */