Port: Add Solaris endian.h compat
[lttng-tools.git] / src / common / compat / endian.h
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1/*
2 * Copyright (C) 2011 - David Goulet <dgoulet@efficios.com>
3 *
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4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License, version 2 only,
6 * as published by the Free Software Foundation.
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7 *
8 * This program is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
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13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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16 */
17
f263b7fd 18#ifndef _COMPAT_ENDIAN_H
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19#define _COMPAT_ENDIAN_H
20
21#ifdef __linux__
22#include <endian.h>
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23
24/*
25 * htobe/betoh are not defined for glibc <2.9, so add them
26 * explicitly if they are missing.
27 */
28#ifdef __USE_BSD
29/* Conversion interfaces. */
30# include <byteswap.h>
31
32# if __BYTE_ORDER == __LITTLE_ENDIAN
33# ifndef htobe16
34# define htobe16(x) __bswap_16(x)
35# endif
36# ifndef htole16
37# define htole16(x) (x)
38# endif
39# ifndef be16toh
40# define be16toh(x) __bswap_16(x)
41# endif
42# ifndef le16toh
43# define le16toh(x) (x)
44# endif
45
46# ifndef htobe32
47# define htobe32(x) __bswap_32(x)
48# endif
49# ifndef htole32
50# define htole32(x) (x)
51# endif
52# ifndef be32toh
53# define be32toh(x) __bswap_32(x)
54# endif
55# ifndef le32toh
56# define le32toh(x) (x)
57# endif
58
59# ifndef htobe64
60# define htobe64(x) __bswap_64(x)
61# endif
62# ifndef htole64
63# define htole64(x) (x)
64# endif
65# ifndef be64toh
66# define be64toh(x) __bswap_64(x)
67# endif
68# ifndef le64toh
69# define le64toh(x) (x)
70# endif
71
72# else /* __BYTE_ORDER == __LITTLE_ENDIAN */
73# ifndef htobe16
74# define htobe16(x) (x)
75# endif
76# ifndef htole16
77# define htole16(x) __bswap_16(x)
78# endif
79# ifndef be16toh
80# define be16toh(x) (x)
81# endif
82# ifndef le16toh
83# define le16toh(x) __bswap_16(x)
84# endif
85
86# ifndef htobe32
87# define htobe32(x) (x)
88# endif
89# ifndef htole32
90# define htole32(x) __bswap_32(x)
91# endif
92# ifndef be32toh
93# define be32toh(x) (x)
94# endif
95# ifndef le32toh
96# define le32toh(x) __bswap_32(x)
97# endif
98
99# ifndef htobe64
100# define htobe64(x) (x)
101# endif
102# ifndef htole64
103# define htole64(x) __bswap_64(x)
104# endif
105# ifndef be64toh
106# define be64toh(x) (x)
107# endif
108# ifndef le64toh
109# define le64toh(x) __bswap_64(x)
110# endif
111
112# endif /* __BYTE_ORDER == __LITTLE_ENDIAN */
113#endif /* __USE_BSD */
114
b2c3836f 115#elif defined(__FreeBSD__)
eb71a0aa 116#include <machine/endian.h>
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117
118#elif defined(__sun__)
119#include <sys/byteorder.h>
120#ifndef __BIG_ENDIAN
121#define __BIG_ENDIAN 4321
122#endif /* __BIG_ENDIAN */
123#ifndef __LITTLE_ENDIAN
124#define __LITTLE_ENDIAN 1234
125#endif /* __LITTLE_ENDIAN */
126
127#ifdef _LITTLE_ENDIAN
128#define __BYTE_ORDER __LITTLE_ENDIAN
129#endif /* _LITTLE_ENDIAN */
130#ifdef _BIG_ENDIAN
131#define __BYTE_ORDER __BIG_ENDIAN
132#endif /* _BIG_ENDIAN */
133
134#define LITTLE_ENDIAN __LITTLE_ENDIAN
135#define BIG_ENDIAN __BIG_ENDIAN
136#define PDP_ENDIAN __PDP_ENDIAN
137#define BYTE_ORDER __BYTE_ORDER
138
139#define betoh16(x) BE_16(x)
140#define letoh16(x) LE_16(x)
141#define betoh32(x) BE_32(x)
142#define letoh32(x) LE_32(x)
143#define betoh64(x) BE_64(x)
144#define letoh64(x) LE_64(x)
145#define htobe16(x) BE_16(x)
146#define be16toh(x) BE_16(x)
147#define htobe32(x) BE_32(x)
148#define be32toh(x) BE_32(x)
149#define htobe64(x) BE_64(x)
150#define be64toh(x) BE_64(x)
151
eb71a0aa 152#else
b2c3836f 153#error "Please add support for your OS."
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154#endif
155
156#endif /* _COMPAT_ENDIAN_H */
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