1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
/**
* @file
*
* @ingroup rtems_bsd_machine
*
* @brief TODO.
*/
/*
* Copyright (c) 2009-2013 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _RTEMS_BSD_MACHINE_ENDIAN_H
#define _RTEMS_BSD_MACHINE_ENDIAN_H
#include <machine/endian.h>
#include <rtems/endian.h>
#include <stdint.h>
#if __BSD_VISIBLE
#define _BYTE_ORDER BYTE_ORDER
/* On PowerPC this is a GCC built-in define */
#undef _BIG_ENDIAN
#define _BIG_ENDIAN BIG_ENDIAN
#define _LITTLE_ENDIAN LITTLE_ENDIAN
#if BYTE_ORDER == BIG_ENDIAN
#define __ntohl(x) ((uint32_t) (x))
#define __ntohs(x) ((uint16_t) (x))
#define __htonl(x) ((uint32_t) (x))
#define __htons(x) ((uint16_t) (x))
#else
#define __ntohl(x) (__bswap32(x))
#define __ntohs(x) (__bswap16(x))
#define __htonl(x) (__bswap32(x))
#define __htons(x) (__bswap16(x))
#endif
#define _BYTEORDER_FUNC_DEFINED
static inline uint16_t
__bswap16(uint16_t v)
{
#ifdef __GNUC__
return __builtin_bswap16(v);
#else
return (uint16_t) ((v >> 8)
| ((v & 0xffU) << 8));
#endif
}
static inline uint32_t
__bswap32(uint32_t v)
{
#ifdef __GNUC__
return __builtin_bswap32(v);
#else
return (uint32_t) ((v >> 24)
| ((v >> 8) && 0xff00U)
| ((v & 0xff00U) << 8)
| ((v & 0xffU) << 24));
#endif
}
static inline uint64_t
__bswap64(uint64_t v)
{
#ifdef __GNUC__
return __builtin_bswap64(v);
#else
return (uint64_t) ((v >> 56)
| ((v >> 40) && 0xff00U)
| ((v >> 24) && 0xff0000U)
| ((v >> 8) && 0xff000000U)
| ((v & 0xff000000U) << 8)
| ((v & 0xff0000U) << 24)
| ((v & 0xff00U) << 40)
| ((v & 0xffU) << 56));
#endif
}
#endif /* __BSD_VISIBLE */
#endif /* _RTEMS_BSD_MACHINE_ENDIAN_H */
|
