include/asm-ppc/bug.h

   1 #ifndef _PPC_BUG_H
   2 #define _PPC_BUG_H
   3
   4 struct bug_entry {
   5         unsigned long   bug_addr;
   6         int             line;
   7         const char      *file;
   8         const char      *function;
   9 };
  10
  11 /*
  12  * If this bit is set in the line number it means that the trap
  13  * is for WARN_ON rather than BUG or BUG_ON.
  14  */
  15 #define BUG_WARNING_TRAP        0x1000000
  16
  17 #ifdef CONFIG_BUG
  18 #define BUG() do {                                                       \
  19         __asm__ __volatile__(                                            \
  20                 "1:     twi 31,0,0\n"                                    \
  21                 ".section __bug_table,\"a\"\n\t"                         \
  22                 "       .long 1b,%0,%1,%2\n"                             \
  23                 ".previous"                                              \
  24                 : : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \
  25 } while (0)
  26
  27 #define BUG_ON(x) do {                                                  \
  28         if (!__builtin_constant_p(x) || (x)) {                          \
  29                 __asm__ __volatile__(                                   \
  30                         "1:     twnei %0,0\n"                           \
  31                         ".section __bug_table,\"a\"\n\t"                \
  32                         "       .long 1b,%1,%2,%3\n"                    \
  33                         ".previous"                                     \
  34                         : : "r" (x), "i" (__LINE__), "i" (__FILE__),    \
  35                             "i" (__FUNCTION__));                        \
  36         }                                                               \
  37 } while (0)
  38
  39 #define WARN_ON(x) do {                                                 \
  40         if (!__builtin_constant_p(x) || (x)) {                          \
  41                 __asm__ __volatile__(                                   \
  42                         "1:     twnei %0,0\n"                           \
  43                         ".section __bug_table,\"a\"\n\t"                \
  44                         "       .long 1b,%1,%2,%3\n"                    \
  45                         ".previous"                                     \
  46                         : : "r" (x), "i" (__LINE__ + BUG_WARNING_TRAP), \
  47                             "i" (__FILE__), "i" (__FUNCTION__));        \
  48         }                                                               \
  49 } while (0)
  50
  51 #define HAVE_ARCH_BUG
  52 #define HAVE_ARCH_BUG_ON
  53 #define HAVE_ARCH_WARN_ON
  54 #endif
  55
  56 #include <asm-generic/bug.h>
  57
  58 #endif