endian.h (e6ff6154d2034c13f3d0da73c1e00d69fdb36516) endian.h (720dc6bcb5a8c4283802576e2ef54f42b33fa8d4)
1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1987, 1991 Regents of the University of California.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

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30 *
31 * @(#)endian.h 7.8 (Berkeley) 4/3/91
32 * $FreeBSD$
33 */
34
35#ifndef _MACHINE_ENDIAN_H_
36#define _MACHINE_ENDIAN_H_
37
1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1987, 1991 Regents of the University of California.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

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30 *
31 * @(#)endian.h 7.8 (Berkeley) 4/3/91
32 * $FreeBSD$
33 */
34
35#ifndef _MACHINE_ENDIAN_H_
36#define _MACHINE_ENDIAN_H_
37
38#include <sys/cdefs.h>
39#include <sys/_types.h>
38#include <sys/_types.h>
39#include <sys/_endian.h>
40
40
41/*
42 * Define the order of 32-bit words in 64-bit words.
43 */
44#define _QUAD_HIGHWORD 1
45#define _QUAD_LOWWORD 0
46
47/*
48 * Definitions for byte order, according to byte significance from low
49 * address to high.
50 */
51#define _LITTLE_ENDIAN 1234 /* LSB first: i386, vax */
52#define _BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */
53#define _PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */
54
55#define _BYTE_ORDER _LITTLE_ENDIAN
56
57/*
58 * Deprecated variants that don't have enough underscores to be useful in more
59 * strict namespaces.
60 */
61#if __BSD_VISIBLE
62#define LITTLE_ENDIAN _LITTLE_ENDIAN
63#define BIG_ENDIAN _BIG_ENDIAN
64#define PDP_ENDIAN _PDP_ENDIAN
65#define BYTE_ORDER _BYTE_ORDER
66#endif
67
68#define __bswap16(x) __builtin_bswap16(x)
69#define __bswap32(x) __builtin_bswap32(x)
70#define __bswap64(x) __builtin_bswap64(x)
71
72#define __htonl(x) __bswap32(x)
73#define __htons(x) __bswap16(x)
74#define __ntohl(x) __bswap32(x)
75#define __ntohs(x) __bswap16(x)
76
77#endif /* !_MACHINE_ENDIAN_H_ */
41#endif /* !_MACHINE_ENDIAN_H_ */