| 1 | /* |
| 2 | * SPDX-License-Identifier: MIT |
| 3 | * |
| 4 | * Copyright 2012 (c) Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 5 | * |
| 6 | * endian.h compatibility layer. |
| 7 | */ |
| 8 | |
| 9 | #ifndef _BABELTRACE_ENDIAN_H |
| 10 | #define _BABELTRACE_ENDIAN_H |
| 11 | |
| 12 | #ifdef __FreeBSD__ |
| 13 | #include <machine/endian.h> |
| 14 | |
| 15 | #elif defined(__sun__) |
| 16 | #include <sys/byteorder.h> |
| 17 | |
| 18 | #ifndef __BIG_ENDIAN |
| 19 | #define __BIG_ENDIAN 4321 |
| 20 | #endif |
| 21 | #ifndef __LITTLE_ENDIAN |
| 22 | #define __LITTLE_ENDIAN 1234 |
| 23 | #endif |
| 24 | |
| 25 | #ifdef _LITTLE_ENDIAN |
| 26 | #define __BYTE_ORDER __LITTLE_ENDIAN |
| 27 | #endif |
| 28 | |
| 29 | #ifdef _BIG_ENDIAN |
| 30 | #define __BYTE_ORDER __BIG_ENDIAN |
| 31 | #endif |
| 32 | |
| 33 | #define LITTLE_ENDIAN __LITTLE_ENDIAN |
| 34 | #define BIG_ENDIAN __BIG_ENDIAN |
| 35 | #define BYTE_ORDER __BYTE_ORDER |
| 36 | |
| 37 | #define betoh16(x) BE_16(x) |
| 38 | #define letoh16(x) LE_16(x) |
| 39 | #define betoh32(x) BE_32(x) |
| 40 | #define letoh32(x) LE_32(x) |
| 41 | #define betoh64(x) BE_64(x) |
| 42 | #define letoh64(x) LE_64(x) |
| 43 | #define htobe16(x) BE_16(x) |
| 44 | #define be16toh(x) BE_16(x) |
| 45 | #define htobe32(x) BE_32(x) |
| 46 | #define be32toh(x) BE_32(x) |
| 47 | #define htobe64(x) BE_64(x) |
| 48 | #define be64toh(x) BE_64(x) |
| 49 | |
| 50 | #elif defined(__MINGW32__) |
| 51 | #include <stdint.h> |
| 52 | |
| 53 | #ifndef __BIG_ENDIAN |
| 54 | #define __BIG_ENDIAN 4321 |
| 55 | #endif |
| 56 | #ifndef __LITTLE_ENDIAN |
| 57 | #define __LITTLE_ENDIAN 1234 |
| 58 | #endif |
| 59 | |
| 60 | #ifndef __BYTE_ORDER |
| 61 | #define __BYTE_ORDER __LITTLE_ENDIAN |
| 62 | #endif |
| 63 | |
| 64 | #define LITTLE_ENDIAN __LITTLE_ENDIAN |
| 65 | #define BIG_ENDIAN __BIG_ENDIAN |
| 66 | #define PDP_ENDIAN __PDP_ENDIAN |
| 67 | #define BYTE_ORDER __BYTE_ORDER |
| 68 | |
| 69 | #define htobe16(x) (uint16_t) _byteswap_ushort(x) |
| 70 | #define htole16(x) (x) |
| 71 | #define be16toh(x) (uint16_t) _byteswap_ushort(x) |
| 72 | #define le16toh(x) (x) |
| 73 | |
| 74 | #define htobe32(x) (uint32_t) _byteswap_ulong(x) |
| 75 | #define htole32(x) (x) |
| 76 | #define be32toh(x) (uint32_t) _byteswap_ulong(x) |
| 77 | #define le32toh(x) (x) |
| 78 | |
| 79 | #define htobe64(x) (uint64_t) _byteswap_uint64(x) |
| 80 | #define htole64(x) (x) |
| 81 | #define be64toh(x) (uint64_t) _byteswap_uint64(x) |
| 82 | #define le64toh(x) (x) |
| 83 | |
| 84 | #elif defined(__APPLE__) |
| 85 | # include <machine/endian.h> |
| 86 | # include <libkern/OSByteOrder.h> |
| 87 | |
| 88 | # if BYTE_ORDER == LITTLE_ENDIAN |
| 89 | # define htobe16(x) OSSwapConstInt16(x) |
| 90 | # define htole16(x) (x) |
| 91 | # define be16toh(x) OSSwapConstInt16(x) |
| 92 | # define le16toh(x) (x) |
| 93 | |
| 94 | # define htobe32(x) OSSwapConstInt32(x) |
| 95 | # define htole32(x) (x) |
| 96 | # define be32toh(x) OSSwapConstInt32(x) |
| 97 | # define le32toh(x) (x) |
| 98 | |
| 99 | # define htobe64(x) OSSwapConstInt64(x) |
| 100 | # define htole64(x) (x) |
| 101 | # define be64toh(x) OSSwapConstInt64(x) |
| 102 | # define le64toh(x) (x) |
| 103 | |
| 104 | # else /* BYTE_ORDER == LITTLE_ENDIAN */ |
| 105 | # define htobe16(x) (x) |
| 106 | # define htole16(x) OSSwapConstInt16(x) |
| 107 | # define be16toh(x) (x) |
| 108 | # define le16toh(x) OSSwapConstInt16(x) |
| 109 | |
| 110 | # define htobe32(x) (x) |
| 111 | # define htole32(x) OSSwapConstInt32(x) |
| 112 | # define be32toh(x) (x) |
| 113 | # define le32toh(x) OSSwapConstInt32(x) |
| 114 | |
| 115 | # define htobe64(x) (x) |
| 116 | # define htole64(x) OSSwapConstInt64(x) |
| 117 | # define be64toh(x) (x) |
| 118 | # define le64toh(x) OSSwapConstInt64(x) |
| 119 | # endif |
| 120 | |
| 121 | #else |
| 122 | #include <endian.h> |
| 123 | |
| 124 | /* |
| 125 | * htobe/betoh are not defined for glibc < 2.9, so add them explicitly |
| 126 | * if they are missing. |
| 127 | */ |
| 128 | # ifdef __USE_BSD |
| 129 | /* Conversion interfaces. */ |
| 130 | # include <byteswap.h> |
| 131 | |
| 132 | # if __BYTE_ORDER == __LITTLE_ENDIAN |
| 133 | # ifndef htobe16 |
| 134 | # define htobe16(x) __bswap_16(x) |
| 135 | # endif |
| 136 | # ifndef htole16 |
| 137 | # define htole16(x) (x) |
| 138 | # endif |
| 139 | # ifndef be16toh |
| 140 | # define be16toh(x) __bswap_16(x) |
| 141 | # endif |
| 142 | # ifndef le16toh |
| 143 | # define le16toh(x) (x) |
| 144 | # endif |
| 145 | |
| 146 | # ifndef htobe32 |
| 147 | # define htobe32(x) __bswap_32(x) |
| 148 | # endif |
| 149 | # ifndef htole32 |
| 150 | # define htole32(x) (x) |
| 151 | # endif |
| 152 | # ifndef be32toh |
| 153 | # define be32toh(x) __bswap_32(x) |
| 154 | # endif |
| 155 | # ifndef le32toh |
| 156 | # define le32toh(x) (x) |
| 157 | # endif |
| 158 | |
| 159 | # ifndef htobe64 |
| 160 | # define htobe64(x) __bswap_64(x) |
| 161 | # endif |
| 162 | # ifndef htole64 |
| 163 | # define htole64(x) (x) |
| 164 | # endif |
| 165 | # ifndef be64toh |
| 166 | # define be64toh(x) __bswap_64(x) |
| 167 | # endif |
| 168 | # ifndef le64toh |
| 169 | # define le64toh(x) (x) |
| 170 | # endif |
| 171 | |
| 172 | # else /* __BYTE_ORDER == __LITTLE_ENDIAN */ |
| 173 | # ifndef htobe16 |
| 174 | # define htobe16(x) (x) |
| 175 | # endif |
| 176 | # ifndef htole16 |
| 177 | # define htole16(x) __bswap_16(x) |
| 178 | # endif |
| 179 | # ifndef be16toh |
| 180 | # define be16toh(x) (x) |
| 181 | # endif |
| 182 | # ifndef le16toh |
| 183 | # define le16toh(x) __bswap_16(x) |
| 184 | # endif |
| 185 | |
| 186 | # ifndef htobe32 |
| 187 | # define htobe32(x) (x) |
| 188 | # endif |
| 189 | # ifndef htole32 |
| 190 | # define htole32(x) __bswap_32(x) |
| 191 | # endif |
| 192 | # ifndef be32toh |
| 193 | # define be32toh(x) (x) |
| 194 | # endif |
| 195 | # ifndef le32toh |
| 196 | # define le32toh(x) __bswap_32(x) |
| 197 | # endif |
| 198 | |
| 199 | # ifndef htobe64 |
| 200 | # define htobe64(x) (x) |
| 201 | # endif |
| 202 | # ifndef htole64 |
| 203 | # define htole64(x) __bswap_64(x) |
| 204 | # endif |
| 205 | # ifndef be64toh |
| 206 | # define be64toh(x) (x) |
| 207 | # endif |
| 208 | # ifndef le64toh |
| 209 | # define le64toh(x) __bswap_64(x) |
| 210 | # endif |
| 211 | |
| 212 | # endif /* __BYTE_ORDER == __LITTLE_ENDIAN */ |
| 213 | # endif /* __USE_BSD */ |
| 214 | #endif /* else -- __FreeBSD__ */ |
| 215 | |
| 216 | #ifndef FLOAT_WORD_ORDER |
| 217 | #ifdef __FLOAT_WORD_ORDER |
| 218 | #define FLOAT_WORD_ORDER __FLOAT_WORD_ORDER |
| 219 | #else /* __FLOAT_WORD_ORDER */ |
| 220 | #define FLOAT_WORD_ORDER BYTE_ORDER |
| 221 | #endif /* __FLOAT_WORD_ORDER */ |
| 222 | #endif /* FLOAT_WORD_ORDER */ |
| 223 | |
| 224 | #endif /* _BABELTRACE_ENDIAN_H */ |