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Merge pull request #11827 from keszybz/pkgconfig-variables
[thirdparty/systemd.git] / src / basic / sparse-endian.h
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1/* SPDX-License-Identifier: MIT
2 *
3 * Copyright (c) 2012 Josh Triplett <josh@joshtriplett.org>
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4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to
7 * deal in the Software without restriction, including without limitation the
8 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
9 * sell copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
7a3c343c 23#pragma once
4fd052ae 24
8e8af4cf 25#include <byteswap.h>
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26#include <endian.h>
27#include <stdint.h>
28
29#ifdef __CHECKER__
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30#define __sd_bitwise __attribute__((__bitwise__))
31#define __sd_force __attribute__((__force__))
4fd052ae 32#else
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33#define __sd_bitwise
34#define __sd_force
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35#endif
36
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37typedef uint16_t __sd_bitwise le16_t;
38typedef uint16_t __sd_bitwise be16_t;
39typedef uint32_t __sd_bitwise le32_t;
40typedef uint32_t __sd_bitwise be32_t;
41typedef uint64_t __sd_bitwise le64_t;
42typedef uint64_t __sd_bitwise be64_t;
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43
44#undef htobe16
45#undef htole16
46#undef be16toh
47#undef le16toh
48#undef htobe32
49#undef htole32
50#undef be32toh
51#undef le32toh
52#undef htobe64
53#undef htole64
54#undef be64toh
55#undef le64toh
56
57#if __BYTE_ORDER == __LITTLE_ENDIAN
58#define bswap_16_on_le(x) __bswap_16(x)
59#define bswap_32_on_le(x) __bswap_32(x)
60#define bswap_64_on_le(x) __bswap_64(x)
61#define bswap_16_on_be(x) (x)
62#define bswap_32_on_be(x) (x)
63#define bswap_64_on_be(x) (x)
64#elif __BYTE_ORDER == __BIG_ENDIAN
65#define bswap_16_on_le(x) (x)
66#define bswap_32_on_le(x) (x)
67#define bswap_64_on_le(x) (x)
68#define bswap_16_on_be(x) __bswap_16(x)
69#define bswap_32_on_be(x) __bswap_32(x)
70#define bswap_64_on_be(x) __bswap_64(x)
71#endif
72
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73static inline le16_t htole16(uint16_t value) { return (le16_t __sd_force) bswap_16_on_be(value); }
74static inline le32_t htole32(uint32_t value) { return (le32_t __sd_force) bswap_32_on_be(value); }
75static inline le64_t htole64(uint64_t value) { return (le64_t __sd_force) bswap_64_on_be(value); }
4fd052ae 76
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77static inline be16_t htobe16(uint16_t value) { return (be16_t __sd_force) bswap_16_on_le(value); }
78static inline be32_t htobe32(uint32_t value) { return (be32_t __sd_force) bswap_32_on_le(value); }
79static inline be64_t htobe64(uint64_t value) { return (be64_t __sd_force) bswap_64_on_le(value); }
4fd052ae 80
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81static inline uint16_t le16toh(le16_t value) { return bswap_16_on_be((uint16_t __sd_force)value); }
82static inline uint32_t le32toh(le32_t value) { return bswap_32_on_be((uint32_t __sd_force)value); }
83static inline uint64_t le64toh(le64_t value) { return bswap_64_on_be((uint64_t __sd_force)value); }
4fd052ae 84
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85static inline uint16_t be16toh(be16_t value) { return bswap_16_on_le((uint16_t __sd_force)value); }
86static inline uint32_t be32toh(be32_t value) { return bswap_32_on_le((uint32_t __sd_force)value); }
87static inline uint64_t be64toh(be64_t value) { return bswap_64_on_le((uint64_t __sd_force)value); }
88
89#undef __sd_bitwise
90#undef __sd_force