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()                                                   \
  15 do {                                                            \
  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()                                                   \
  29 do {                                                            \
  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 */