include/babeltrace/endian-internal.h

   1 #ifndef _BABELTRACE_ENDIAN_H
   2 #define _BABELTRACE_ENDIAN_H
   3
   4 /*
   5  * babeltrace/endian.h
   6  *
   7  * Copyright 2012 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   8  *
   9  * endian.h compatibility layer.
  10  *
  11  * Permission is hereby granted, free of charge, to any person obtaining a copy
  12  * of this software and associated documentation files (the "Software"), to deal
  13  * in the Software without restriction, including without limitation the rights
  14  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  15  * copies of the Software, and to permit persons to whom the Software is
  16  * furnished to do so, subject to the following conditions:
  17  *
  18  * The above copyright notice and this permission notice shall be included in
  19  * all copies or substantial portions of the Software.
  20  *
  21  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  22  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  23  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  24  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  25  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  26  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  27  * SOFTWARE.
  28  */
  29
  30 #ifdef __FreeBSD__
  31 #include <machine/endian.h>
  32
  33 #elif defined(__sun__)
  34 #include <sys/byteorder.h>
  35
  36 #ifndef __BIG_ENDIAN
  37 #define __BIG_ENDIAN 4321
  38 #endif
  39 #ifndef __LITTLE_ENDIAN
  40 #define __LITTLE_ENDIAN 1234
  41 #endif
  42
  43 #ifdef _LITTLE_ENDIAN
  44 #define __BYTE_ORDER __LITTLE_ENDIAN
  45 #endif
  46
  47 #ifdef _BIG_ENDIAN
  48 #define __BYTE_ORDER __BIG_ENDIAN
  49 #endif
  50
  51 #define LITTLE_ENDIAN  __LITTLE_ENDIAN
  52 #define BIG_ENDIAN     __BIG_ENDIAN
  53 #define BYTE_ORDER     __BYTE_ORDER
  54
  55 #define betoh16(x) BE_16(x)
  56 #define letoh16(x) LE_16(x)
  57 #define betoh32(x) BE_32(x)
  58 #define letoh32(x) LE_32(x)
  59 #define betoh64(x) BE_64(x)
  60 #define letoh64(x) LE_64(x)
  61 #define htobe16(x) BE_16(x)
  62 #define be16toh(x) BE_16(x)
  63 #define htobe32(x) BE_32(x)
  64 #define be32toh(x) BE_32(x)
  65 #define htobe64(x) BE_64(x)
  66 #define be64toh(x) BE_64(x)
  67
  68 #elif defined(__MINGW32__)
  69 #include <stdint.h>
  70
  71 #ifndef __BIG_ENDIAN
  72 #define __BIG_ENDIAN 4321
  73 #endif
  74 #ifndef __LITTLE_ENDIAN
  75 #define __LITTLE_ENDIAN 1234
  76 #endif
  77
  78 #ifndef __BYTE_ORDER
  79 #define __BYTE_ORDER __LITTLE_ENDIAN
  80 #endif
  81
  82 #define LITTLE_ENDIAN  __LITTLE_ENDIAN
  83 #define BIG_ENDIAN     __BIG_ENDIAN
  84 #define PDP_ENDIAN     __PDP_ENDIAN
  85 #define BYTE_ORDER     __BYTE_ORDER
  86
  87 #define htobe16(x) (uint16_t) _byteswap_ushort(x)
  88 #define htole16(x) (x)
  89 #define be16toh(x) (uint16_t) _byteswap_ushort(x)
  90 #define le16toh(x) (x)
  91
  92 #define htobe32(x) (uint32_t) _byteswap_ulong(x)
  93 #define htole32(x) (x)
  94 #define be32toh(x) (uint32_t) _byteswap_ulong(x)
  95 #define le32toh(x) (x)
  96
  97 #define htobe64(x) (uint64_t) _byteswap_uint64(x)
  98 #define htole64(x) (x)
  99 #define be64toh(x) (uint64_t) _byteswap_uint64(x)
 100 #define le64toh(x) (x)
 101
 102 #elif defined(__APPLE__)
 103 # include <machine/endian.h>
 104 # include <libkern/OSByteOrder.h>
 105
 106 # if BYTE_ORDER == LITTLE_ENDIAN
 107 #  define htobe16(x) OSSwapConstInt16(x)
 108 #  define htole16(x) (x)
 109 #  define be16toh(x) OSSwapConstInt16(x)
 110 #  define le16toh(x) (x)
 111
 112 #  define htobe32(x) OSSwapConstInt32(x)
 113 #  define htole32(x) (x)
 114 #  define be32toh(x) OSSwapConstInt32(x)
 115 #  define le32toh(x) (x)
 116
 117 #  define htobe64(x) OSSwapConstInt64(x)
 118 #  define htole64(x) (x)
 119 #  define be64toh(x) OSSwapConstInt64(x)
 120 #  define le64toh(x) (x)
 121
 122 # else /* BYTE_ORDER == LITTLE_ENDIAN */
 123 #  define htobe16(x) (x)
 124 #  define htole16(x) OSSwapConstInt16(x)
 125 #  define be16toh(x) (x)
 126 #  define le16toh(x) OSSwapConstInt16(x)
 127
 128 #  define htobe32(x) (x)
 129 #  define htole32(x) OSSwapConstInt32(x)
 130 #  define be32toh(x) (x)
 131 #  define le32toh(x) OSSwapConstInt32(x)
 132
 133 #  define htobe64(x) (x)
 134 #  define htole64(x) OSSwapConstInt64(x)
 135 #  define be64toh(x) (x)
 136 #  define le64toh(x) OSSwapConstInt64(x)
 137 #  endif
 138
 139 #else
 140 #include <endian.h>
 141
 142 /*
 143  * htobe/betoh are not defined for glibc < 2.9, so add them explicitly
 144  * if they are missing.
 145  */
 146 # ifdef __USE_BSD
 147 /* Conversion interfaces. */
 148 #  include <byteswap.h>
 149
 150 #  if __BYTE_ORDER == __LITTLE_ENDIAN
 151 #   ifndef htobe16
 152 #    define htobe16(x) __bswap_16(x)
 153 #   endif
 154 #   ifndef htole16
 155 #    define htole16(x) (x)
 156 #   endif
 157 #   ifndef be16toh
 158 #    define be16toh(x) __bswap_16(x)
 159 #   endif
 160 #   ifndef le16toh
 161 #    define le16toh(x) (x)
 162 #   endif
 163
 164 #   ifndef htobe32
 165 #    define htobe32(x) __bswap_32(x)
 166 #   endif
 167 #   ifndef htole32
 168 #    define htole32(x) (x)
 169 #   endif
 170 #   ifndef be32toh
 171 #    define be32toh(x) __bswap_32(x)
 172 #   endif
 173 #   ifndef le32toh
 174 #    define le32toh(x) (x)
 175 #   endif
 176
 177 #   ifndef htobe64
 178 #    define htobe64(x) __bswap_64(x)
 179 #   endif
 180 #   ifndef htole64
 181 #    define htole64(x) (x)
 182 #   endif
 183 #   ifndef be64toh
 184 #    define be64toh(x) __bswap_64(x)
 185 #   endif
 186 #   ifndef le64toh
 187 #    define le64toh(x) (x)
 188 #   endif
 189
 190 #  else /* __BYTE_ORDER == __LITTLE_ENDIAN */
 191 #   ifndef htobe16
 192 #    define htobe16(x) (x)
 193 #   endif
 194 #   ifndef htole16
 195 #    define htole16(x) __bswap_16(x)
 196 #   endif
 197 #   ifndef be16toh
 198 #    define be16toh(x) (x)
 199 #   endif
 200 #   ifndef le16toh
 201 #    define le16toh(x) __bswap_16(x)
 202 #   endif
 203
 204 #   ifndef htobe32
 205 #    define htobe32(x) (x)
 206 #   endif
 207 #   ifndef htole32
 208 #    define htole32(x) __bswap_32(x)
 209 #   endif
 210 #   ifndef be32toh
 211 #    define be32toh(x) (x)
 212 #   endif
 213 #   ifndef le32toh
 214 #    define le32toh(x) __bswap_32(x)
 215 #   endif
 216
 217 #   ifndef htobe64
 218 #    define htobe64(x) (x)
 219 #   endif
 220 #   ifndef htole64
 221 #    define htole64(x) __bswap_64(x)
 222 #   endif
 223 #   ifndef be64toh
 224 #    define be64toh(x) (x)
 225 #   endif
 226 #   ifndef le64toh
 227 #    define le64toh(x) __bswap_64(x)
 228 #   endif
 229
 230 #  endif /* __BYTE_ORDER == __LITTLE_ENDIAN */
 231 # endif /* __USE_BSD */
 232 #endif /* else -- __FreeBSD__ */
 233
 234 #ifndef FLOAT_WORD_ORDER
 235 #ifdef __FLOAT_WORD_ORDER
 236 #define FLOAT_WORD_ORDER        __FLOAT_WORD_ORDER
 237 #else /* __FLOAT_WORD_ORDER */
 238 #define FLOAT_WORD_ORDER        BYTE_ORDER
 239 #endif /* __FLOAT_WORD_ORDER */
 240 #endif /* FLOAT_WORD_ORDER */
 241
 242 #endif /* _BABELTRACE_ENDIAN_H */