LXR linux/include/asm-xtensa/bug.h

   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 */
  42