1 #ifndef _BABELTRACE_ENDIAN_H
2 #define _BABELTRACE_ENDIAN_H
7 * Copyright 2012 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 * endian.h compatibility layer.
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:
18 * The above copyright notice and this permission notice shall be included in
19 * all copies or substantial portions of the Software.
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
31 #include <machine/endian.h>
33 #elif defined(__sun__)
34 #include <sys/byteorder.h>
37 #define __BIG_ENDIAN 4321
39 #ifndef __LITTLE_ENDIAN
40 #define __LITTLE_ENDIAN 1234
44 #define __BYTE_ORDER __LITTLE_ENDIAN
48 #define __BYTE_ORDER __BIG_ENDIAN
51 #define LITTLE_ENDIAN __LITTLE_ENDIAN
52 #define BIG_ENDIAN __BIG_ENDIAN
53 #define BYTE_ORDER __BYTE_ORDER
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)
68 #elif defined(__MINGW32__)
70 #define __BIG_ENDIAN 4321
72 #ifndef __LITTLE_ENDIAN
73 #define __LITTLE_ENDIAN 1234
77 #define __BYTE_ORDER __LITTLE_ENDIAN
80 #define LITTLE_ENDIAN __LITTLE_ENDIAN
81 #define BIG_ENDIAN __BIG_ENDIAN
82 #define PDP_ENDIAN __PDP_ENDIAN
83 #define BYTE_ORDER __BYTE_ORDER
85 #elif defined(__APPLE__)
86 # include <machine/endian.h>
87 # include <libkern/OSByteOrder.h>
89 # if BYTE_ORDER == LITTLE_ENDIAN
90 # define htobe16(x) OSSwapConstInt16(x)
91 # define htole16(x) (x)
92 # define be16toh(x) OSSwapConstInt16(x)
93 # define le16toh(x) (x)
95 # define htobe32(x) OSSwapConstInt32(x)
96 # define htole32(x) (x)
97 # define be32toh(x) OSSwapConstInt32(x)
98 # define le32toh(x) (x)
100 # define htobe64(x) OSSwapConstInt64(x)
101 # define htole64(x) (x)
102 # define be64toh(x) OSSwapConstInt64(x)
103 # define le64toh(x) (x)
105 # else /* BYTE_ORDER == LITTLE_ENDIAN */
106 # define htobe16(x) (x)
107 # define htole16(x) OSSwapConstInt16(x)
108 # define be16toh(x) (x)
109 # define le16toh(x) OSSwapConstInt16(x)
111 # define htobe32(x) (x)
112 # define htole32(x) OSSwapConstInt32(x)
113 # define be32toh(x) (x)
114 # define le32toh(x) OSSwapConstInt32(x)
116 # define htobe64(x) (x)
117 # define htole64(x) OSSwapConstInt64(x)
118 # define be64toh(x) (x)
119 # define le64toh(x) OSSwapConstInt64(x)
126 * htobe/betoh are not defined for glibc < 2.9, so add them explicitly
127 * if they are missing.
130 /* Conversion interfaces. */
131 # include <byteswap.h>
133 # if __BYTE_ORDER == __LITTLE_ENDIAN
135 # define htobe16(x) __bswap_16(x)
138 # define htole16(x) (x)
141 # define be16toh(x) __bswap_16(x)
144 # define le16toh(x) (x)
148 # define htobe32(x) __bswap_32(x)
151 # define htole32(x) (x)
154 # define be32toh(x) __bswap_32(x)
157 # define le32toh(x) (x)
161 # define htobe64(x) __bswap_64(x)
164 # define htole64(x) (x)
167 # define be64toh(x) __bswap_64(x)
170 # define le64toh(x) (x)
173 # else /* __BYTE_ORDER == __LITTLE_ENDIAN */
175 # define htobe16(x) (x)
178 # define htole16(x) __bswap_16(x)
181 # define be16toh(x) (x)
184 # define le16toh(x) __bswap_16(x)
188 # define htobe32(x) (x)
191 # define htole32(x) __bswap_32(x)
194 # define be32toh(x) (x)
197 # define le32toh(x) __bswap_32(x)
201 # define htobe64(x) (x)
204 # define htole64(x) __bswap_64(x)
207 # define be64toh(x) (x)
210 # define le64toh(x) __bswap_64(x)
213 # endif /* __BYTE_ORDER == __LITTLE_ENDIAN */
214 # endif /* __USE_BSD */
215 #endif /* else -- __FreeBSD__ */
217 #ifndef FLOAT_WORD_ORDER
218 #ifdef __FLOAT_WORD_ORDER
219 #define FLOAT_WORD_ORDER __FLOAT_WORD_ORDER
220 #else /* __FLOAT_WORD_ORDER */
221 #define FLOAT_WORD_ORDER BYTE_ORDER
222 #endif /* __FLOAT_WORD_ORDER */
223 #endif /* FLOAT_WORD_ORDER */
225 #if (BYTE_ORDER == BIG_ENDIAN)
226 # define BT_CTF_MY_BYTE_ORDER BT_CTF_BYTE_ORDER_BIG_ENDIAN
228 # define BT_CTF_MY_BYTE_ORDER BT_CTF_BYTE_ORDER_LITTLE_ENDIAN
231 #endif /* _BABELTRACE_ENDIAN_H */
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