fs/xfs/support/debug.h

   1 /*
   2  * Copyright (c) 2000-2005 Silicon Graphics, Inc.
   3  * All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it would be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write the Free Software Foundation,
  16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  */
  18 #ifndef __XFS_SUPPORT_DEBUG_H__
  19 #define __XFS_SUPPORT_DEBUG_H__
  20
  21 #include <stdarg.h>
  22
  23 #define CE_DEBUG        7               /* debug        */
  24 #define CE_CONT         6               /* continuation */
  25 #define CE_NOTE         5               /* notice       */
  26 #define CE_WARN         4               /* warning      */
  27 #define CE_ALERT        1               /* alert        */
  28 #define CE_PANIC        0               /* panic        */
  29
  30 extern void icmn_err(int, char *, va_list)
  31         __attribute__ ((format (printf, 2, 0)));
  32 extern void cmn_err(int, char *, ...)
  33         __attribute__ ((format (printf, 2, 3)));
  34 extern void assfail(char *expr, char *f, int l);
  35
  36 #define ASSERT_ALWAYS(expr)     \
  37         (unlikely((expr) != 0) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
  38
  39 #ifndef DEBUG
  40 # define ASSERT(expr)   ((void)0)
  41
  42 #ifndef STATIC
  43 # define STATIC static noinline
  44 #endif
  45
  46 #ifndef STATIC_INLINE
  47 # define STATIC_INLINE static inline
  48 #endif
  49
  50 #else /* DEBUG */
  51
  52 # define ASSERT(expr)   ASSERT_ALWAYS(expr)
  53 # include <linux/random.h>
  54
  55 #ifndef STATIC
  56 # define STATIC noinline
  57 #endif
  58
  59 /*
  60  * We stop inlining of inline functions in debug mode.
  61  * Unfortunately, this means static inline in header files
  62  * get multiple definitions, so they need to remain static.
  63  * This then gives tonnes of warnings about unused but defined
  64  * functions, so we need to add the unused attribute to prevent
  65  * these spurious warnings.
  66  */
  67 #ifndef STATIC_INLINE
  68 # define STATIC_INLINE static __attribute__ ((unused)) noinline
  69 #endif
  70
  71 #endif /* DEBUG */
  72
  73
  74 #endif  /* __XFS_SUPPORT_DEBUG_H__ */