projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| eb71a0aa | 1 | /* |
| ab5be9fa | 2 | * Copyright (C) 2011 David Goulet <dgoulet@efficios.com> |
| eb71a0aa | 3 | * |
| c922647d | 4 | * SPDX-License-Identifier: LGPL-2.1-only |
| eb71a0aa | 5 | * |
| eb71a0aa DG |
6 | */ |
| 7 | ||
| 6b5a354b MJ |
8 | /* |
| 9 | * This compat header provides the following defines: | |
| 10 | * | |
| 11 | * LITTLE_ENDIAN | |
| 12 | * BIG_ENDIAN | |
| 13 | * BYTE_ORDER | |
| 14 | * | |
| 15 | * And functions / macros : | |
| 16 | * | |
| 17 | * bswap_16() | |
| 18 | * bswap_32() | |
| 19 | * bswap_64() | |
| 20 | * | |
| 21 | * htobe16() | |
| 22 | * htole16() | |
| 23 | * be16toh() | |
| 24 | * le16toh() | |
| 25 | * | |
| 26 | * htobe32() | |
| 27 | * htole32() | |
| 28 | * be32toh() | |
| 29 | * le32toh() | |
| 30 | * | |
| 31 | * htobe64() | |
| 32 | * htole64() | |
| 33 | * be64toh() | |
| 34 | * le64toh() | |
| 35 | */ | |
| 36 | ||
| f263b7fd | 37 | #ifndef _COMPAT_ENDIAN_H |
| eb71a0aa DG |
38 | #define _COMPAT_ENDIAN_H |
| 39 | ||
| 07bb6d71 | 40 | #if defined(__linux__) || defined(__CYGWIN__) |
| eb71a0aa | 41 | #include <endian.h> |
| 4ff128af | 42 | #include <byteswap.h> |
| f263b7fd JD |
43 | |
| 44 | /* | |
| 45 | * htobe/betoh are not defined for glibc <2.9, so add them | |
| 46 | * explicitly if they are missing. | |
| 47 | */ | |
| 48 | #ifdef __USE_BSD | |
| 49 | /* Conversion interfaces. */ | |
| 50 | # include <byteswap.h> | |
| 51 | ||
| 52 | # if __BYTE_ORDER == __LITTLE_ENDIAN | |
| 53 | # ifndef htobe16 | |
| 54 | # define htobe16(x) __bswap_16(x) | |
| 55 | # endif | |
| 56 | # ifndef htole16 | |
| 57 | # define htole16(x) (x) | |
| 58 | # endif | |
| 59 | # ifndef be16toh | |
| 60 | # define be16toh(x) __bswap_16(x) | |
| 61 | # endif | |
| 62 | # ifndef le16toh | |
| 63 | # define le16toh(x) (x) | |
| 64 | # endif | |
| 65 | ||
| 66 | # ifndef htobe32 | |
| 67 | # define htobe32(x) __bswap_32(x) | |
| 68 | # endif | |
| 69 | # ifndef htole32 | |
| 70 | # define htole32(x) (x) | |
| 71 | # endif | |
| 72 | # ifndef be32toh | |
| 73 | # define be32toh(x) __bswap_32(x) | |
| 74 | # endif | |
| 75 | # ifndef le32toh | |
| 76 | # define le32toh(x) (x) | |
| 77 | # endif | |
| 78 | ||
| 79 | # ifndef htobe64 | |
| 80 | # define htobe64(x) __bswap_64(x) | |
| 81 | # endif | |
| 82 | # ifndef htole64 | |
| 83 | # define htole64(x) (x) | |
| 84 | # endif | |
| 85 | # ifndef be64toh | |
| 86 | # define be64toh(x) __bswap_64(x) | |
| 87 | # endif | |
| 88 | # ifndef le64toh | |
| 89 | # define le64toh(x) (x) | |
| 90 | # endif | |
| 91 | ||
| 92 | # else /* __BYTE_ORDER == __LITTLE_ENDIAN */ | |
| 93 | # ifndef htobe16 | |
| 94 | # define htobe16(x) (x) | |
| 95 | # endif | |
| 96 | # ifndef htole16 | |
| 97 | # define htole16(x) __bswap_16(x) | |
| 98 | # endif | |
| 99 | # ifndef be16toh | |
| 100 | # define be16toh(x) (x) | |
| 101 | # endif | |
| 102 | # ifndef le16toh | |
| 103 | # define le16toh(x) __bswap_16(x) | |
| 104 | # endif | |
| 105 | ||
| 106 | # ifndef htobe32 | |
| 107 | # define htobe32(x) (x) | |
| 108 | # endif | |
| 109 | # ifndef htole32 | |
| 110 | # define htole32(x) __bswap_32(x) | |
| 111 | # endif | |
| 112 | # ifndef be32toh | |
| 113 | # define be32toh(x) (x) | |
| 114 | # endif | |
| 115 | # ifndef le32toh | |
| 116 | # define le32toh(x) __bswap_32(x) | |
| 117 | # endif | |
| 118 | ||
| 119 | # ifndef htobe64 | |
| 120 | # define htobe64(x) (x) | |
| 121 | # endif | |
| 122 | # ifndef htole64 | |
| 123 | # define htole64(x) __bswap_64(x) | |
| 124 | # endif | |
| 125 | # ifndef be64toh | |
| 126 | # define be64toh(x) (x) | |
| 127 | # endif | |
| 128 | # ifndef le64toh | |
| 129 | # define le64toh(x) __bswap_64(x) | |
| 130 | # endif | |
| 131 | ||
| 132 | # endif /* __BYTE_ORDER == __LITTLE_ENDIAN */ | |
| 133 | #endif /* __USE_BSD */ | |
| 134 | ||
| b2c3836f | 135 | #elif defined(__FreeBSD__) |
| 4ff128af MJ |
136 | #include <sys/endian.h> |
| 137 | ||
| 138 | #define bswap_16(x) bswap16(x) | |
| 139 | #define bswap_32(x) bswap32(x) | |
| 140 | #define bswap_64(x) bswap64(x) | |
| 0c97bd7a MJ |
141 | |
| 142 | #elif defined(__sun__) | |
| 143 | #include <sys/byteorder.h> | |
| 144 | #ifndef __BIG_ENDIAN | |
| 145 | #define __BIG_ENDIAN 4321 | |
| 146 | #endif /* __BIG_ENDIAN */ | |
| 147 | #ifndef __LITTLE_ENDIAN | |
| 148 | #define __LITTLE_ENDIAN 1234 | |
| 149 | #endif /* __LITTLE_ENDIAN */ | |
| 150 | ||
| 151 | #ifdef _LITTLE_ENDIAN | |
| 152 | #define __BYTE_ORDER __LITTLE_ENDIAN | |
| 153 | #endif /* _LITTLE_ENDIAN */ | |
| 154 | #ifdef _BIG_ENDIAN | |
| 155 | #define __BYTE_ORDER __BIG_ENDIAN | |
| 156 | #endif /* _BIG_ENDIAN */ | |
| 157 | ||
| 158 | #define LITTLE_ENDIAN __LITTLE_ENDIAN | |
| 159 | #define BIG_ENDIAN __BIG_ENDIAN | |
| 0c97bd7a MJ |
160 | #define BYTE_ORDER __BYTE_ORDER |
| 161 | ||
| 162 | #define betoh16(x) BE_16(x) | |
| 163 | #define letoh16(x) LE_16(x) | |
| 164 | #define betoh32(x) BE_32(x) | |
| 165 | #define letoh32(x) LE_32(x) | |
| 166 | #define betoh64(x) BE_64(x) | |
| 167 | #define letoh64(x) LE_64(x) | |
| 168 | #define htobe16(x) BE_16(x) | |
| 169 | #define be16toh(x) BE_16(x) | |
| 170 | #define htobe32(x) BE_32(x) | |
| 171 | #define be32toh(x) BE_32(x) | |
| 172 | #define htobe64(x) BE_64(x) | |
| 173 | #define be64toh(x) BE_64(x) | |
| 174 | ||
| 50ec4d1a MJ |
175 | #elif defined(__APPLE__) |
| 176 | # include <machine/endian.h> | |
| 177 | # include <libkern/OSByteOrder.h> | |
| 178 | ||
| 179 | # if BYTE_ORDER == LITTLE_ENDIAN | |
| 180 | # define htobe16(x) OSSwapConstInt16(x) | |
| 181 | # define htole16(x) (x) | |
| 182 | # define be16toh(x) OSSwapConstInt16(x) | |
| 183 | # define le16toh(x) (x) | |
| 184 | ||
| 185 | # define htobe32(x) OSSwapConstInt32(x) | |
| 186 | # define htole32(x) (x) | |
| 187 | # define be32toh(x) OSSwapConstInt32(x) | |
| 188 | # define le32toh(x) (x) | |
| 189 | ||
| 190 | # define htobe64(x) OSSwapConstInt64(x) | |
| 191 | # define htole64(x) (x) | |
| 192 | # define be64toh(x) OSSwapConstInt64(x) | |
| 193 | # define le64toh(x) (x) | |
| 194 | ||
| 195 | # else /* BYTE_ORDER == LITTLE_ENDIAN */ | |
| 196 | # define htobe16(x) (x) | |
| 197 | # define htole16(x) OSSwapConstInt16(x) | |
| 198 | # define be16toh(x) (x) | |
| 199 | # define le16toh(x) OSSwapConstInt16(x) | |
| 200 | ||
| 201 | # define htobe32(x) (x) | |
| 202 | # define htole32(x) OSSwapConstInt32(x) | |
| 203 | # define be32toh(x) (x) | |
| 204 | # define le32toh(x) OSSwapConstInt32(x) | |
| 205 | ||
| 206 | # define htobe64(x) (x) | |
| 207 | # define htole64(x) OSSwapConstInt64(x) | |
| 208 | # define be64toh(x) (x) | |
| 209 | # define le64toh(x) OSSwapConstInt64(x) | |
| 210 | # endif | |
| 211 | ||
| eb71a0aa | 212 | #else |
| b2c3836f | 213 | #error "Please add support for your OS." |
| eb71a0aa DG |
214 | #endif |
| 215 | ||
| 216 | #endif /* _COMPAT_ENDIAN_H */ |