arch/blackfin/include/asm/bug.h

   1 #ifndef _BLACKFIN_BUG_H
   2 #define _BLACKFIN_BUG_H
   3
   4 #ifdef CONFIG_BUG
   5
   6 #define BFIN_BUG_OPCODE 0xefcd
   7
   8 #ifdef CONFIG_DEBUG_BUGVERBOSE
   9
  10 #define _BUG_OR_WARN(flags)                                             \
  11         asm volatile(                                                   \
  12                 "1:     .hword  %0\n"                                   \
  13                 "       .section __bug_table,\"a\",@progbits\n"         \
  14                 "2:     .long   1b\n"                                   \
  15                 "       .long   %1\n"                                   \
  16                 "       .short  %2\n"                                   \
  17                 "       .short  %3\n"                                   \
  18                 "       .org    2b + %4\n"                              \
  19                 "       .previous"                                      \
  20                 :                                                       \
  21                 : "i"(BFIN_BUG_OPCODE), "i"(__FILE__),                  \
  22                   "i"(__LINE__), "i"(flags),                            \
  23                   "i"(sizeof(struct bug_entry)))
  24
  25 #else
  26
  27 #define _BUG_OR_WARN(flags)                                             \
  28         asm volatile(                                                   \
  29                 "1:     .hword  %0\n"                                   \
  30                 "       .section __bug_table,\"a\",@progbits\n"         \
  31                 "2:     .long   1b\n"                                   \
  32                 "       .short  %1\n"                                   \
  33                 "       .org    2b + %2\n"                              \
  34                 "       .previous"                                      \
  35                 :                                                       \
  36                 : "i"(BFIN_BUG_OPCODE), "i"(flags),                     \
  37                   "i"(sizeof(struct bug_entry)))
  38
  39 #endif /* CONFIG_DEBUG_BUGVERBOSE */
  40
  41 #define BUG()                                                           \
  42         do {                                                            \
  43                 _BUG_OR_WARN(0);                                        \
  44                 for (;;);                                               \
  45         } while (0)
  46
  47 #define WARN_ON(condition)                                                      \
  48         ({                                                              \
  49                 int __ret_warn_on = !!(condition);                      \
  50                 if (unlikely(__ret_warn_on))                            \
  51                         _BUG_OR_WARN(BUGFLAG_WARNING);                  \
  52                 unlikely(__ret_warn_on);                                \
  53         })
  54
  55 #define HAVE_ARCH_BUG
  56 #define HAVE_ARCH_WARN_ON
  57
  58 #endif
  59
  60 #include <asm-generic/bug.h>
  61
  62 #endif