1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2001 Doug Rabson
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
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef _COMPAT_H_
30#define _COMPAT_H_
31
32/*
33 * Helper macros for translating objects between different ABIs.
34 */
35
36#define PTRIN(v) (void *)(uintptr_t)(v)
37#define PTROUT(v) (uintptr_t)(v)
38
39#define CP(src, dst, fld) do { \
40 (dst).fld = (src).fld; \
41} while (0)
42
43#define CP2(src, dst, sfld, dfld) do { \
44 (dst).dfld = (src).sfld; \
45} while (0)
46
47#define PTRIN_CP(src, dst, fld) do { \
48 (dst).fld = PTRIN((src).fld); \
49} while (0)
50
51#define PTROUT_CP(src, dst, fld) do { \
52 (dst).fld = PTROUT((src).fld); \
53} while (0)
54
55#define TV_CP(src, dst, fld) do { \
56 CP((src).fld, (dst).fld, tv_sec); \
57 CP((src).fld, (dst).fld, tv_usec); \
58} while (0)
59
60#define TS_CP(src, dst, fld) do { \
61 CP((src).fld, (dst).fld, tv_sec); \
62 CP((src).fld, (dst).fld, tv_nsec); \
63} while (0)
64
65#define ITS_CP(src, dst) do { \
66 TS_CP((src), (dst), it_interval); \
67 TS_CP((src), (dst), it_value); \
68} while (0)
69
70#define BT_CP(src, dst, fld) do { \
71 CP((src).fld, (dst).fld, sec); \
72 *(uint64_t *)&(dst).fld.frac[0] = (src).fld.frac; \
73} while (0)
74
75#endif /* !_COMPAT_H_ */