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   1 /*
   2  * include/asm-xtensa/bug.h
   3  *
   4  * Macros to cause a 'bug' message.
   5  *
   6  * This file is subject to the terms and conditions of the GNU General Public
   7  * License.  See the file "COPYING" in the main directory of this archive
   8  * for more details.
   9  *
  10  * Copyright (C) 2001 - 2005 Tensilica Inc.
  11  */
  12
  13 #ifndef _XTENSA_BUG_H
  14 #define _XTENSA_BUG_H
  15
  16 #include <linux/stringify.h>
  17
  18 #define ILL     __asm__ __volatile__ (".byte 0,0,0\n")
  19
  20 #ifdef CONFIG_KALLSYMS
  21 # define BUG() do {                                                     \
  22         printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__);           \
  23         ILL;                                                            \
  24 } while (0)
  25 #else
  26 # define BUG() do {                                                     \
  27         printk("kernel BUG!\n");                                        \
  28         ILL;                                                            \
  29 } while (0)
  30 #endif
  31
  32 #define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
  33 #define PAGE_BUG(page) do {  BUG(); } while (0)
  34 #define WARN_ON(condition) do {                                            \
  35   if (unlikely((condition)!=0)) {                                          \
  36     printk ("Warning in %s at %s:%d\n", __FUNCTION__, __FILE__, __LINE__); \
  37       dump_stack();                                                        \
  38   }                                                                        \
  39 } while (0)
  40
  41 #endif  /* _XTENSA_BUG_H */