lttng-endian.h

   1 #ifndef _LTTNG_ENDIAN_H
   2 #define _LTTNG_ENDIAN_H
   3
   4 /*
   5  * lttng-endian.h
   6  *
   7  * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; only
  12  * version 2.1 of the License.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  */
  23
  24 #ifdef __KERNEL__
  25 # include <asm/byteorder.h>
  26 # ifdef __BIG_ENDIAN
  27 #  define __BYTE_ORDER __BIG_ENDIAN
  28 # elif defined(__LITTLE_ENDIAN)
  29 #  define __BYTE_ORDER __LITTLE_ENDIAN
  30 # else
  31 #  error "unknown endianness"
  32 # endif
  33 #ifndef __BIG_ENDIAN
  34 # define __BIG_ENDIAN 4321
  35 #endif
  36 #ifndef __LITTLE_ENDIAN
  37 # define __LITTLE_ENDIAN 1234
  38 #endif
  39 #else
  40 # include <endian.h>
  41 #endif
  42
  43 #endif /* _LTTNG_ENDIAN_H */