1/*
2 * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
3 */
4/*
5 * Copyright 1995 NeXT Computer, Inc. All rights reserved.
6 */
7/*
8 * Copyright (c) 1990, 1993
9 * The Regents of the University of California. All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the University of
22 * California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 * @(#)types.h 8.3 (Berkeley) 1/5/94
40 */
41
42#ifndef _MACHTYPES_H_
43#define _MACHTYPES_H_
44
45#ifndef __ASSEMBLER__
46#include <arm/_types.h>
47#include <sys/cdefs.h>
48/*
49 * Basic integral types. Omit the typedef if
50 * not possible for a machine/compiler combination.
51 */
52#include <sys/_types/_int8_t.h>
53#include <sys/_types/_int16_t.h>
54#include <sys/_types/_int32_t.h>
55#include <sys/_types/_int64_t.h>
56
57#include <sys/_types/_u_int8_t.h>
58#include <sys/_types/_u_int16_t.h>
59#include <sys/_types/_u_int32_t.h>
60#include <sys/_types/_u_int64_t.h>
61
62#if __LP64__
63typedef int64_t register_t;
64#else
65typedef int32_t register_t;
66#endif
67
68#include <sys/_types/_intptr_t.h>
69#include <sys/_types/_uintptr_t.h>
70
71#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
72/* These types are used for reserving the largest possible size. */
73#ifdef __arm64__
74typedef u_int64_t user_addr_t;
75typedef u_int64_t user_size_t;
76typedef int64_t user_ssize_t;
77typedef int64_t user_long_t;
78typedef u_int64_t user_ulong_t;
79typedef int64_t user_time_t;
80typedef int64_t user_off_t;
81#else
82typedef u_int32_t user_addr_t;
83typedef u_int32_t user_size_t;
84typedef int32_t user_ssize_t;
85typedef int32_t user_long_t;
86typedef u_int32_t user_ulong_t;
87typedef int32_t user_time_t;
88typedef int64_t user_off_t;
89#endif
90
91#define USER_ADDR_NULL ((user_addr_t) 0)
92#define CAST_USER_ADDR_T(a_ptr) ((user_addr_t)((uintptr_t)(a_ptr)))
93
94#ifdef KERNEL
95
96/*
97 * These types are used when you know the word size of the target
98 * user process. They can be used to create struct layouts independent
99 * of the types and alignment requirements of the current running
100 * kernel.
101 */
102
103/*
104 * The user64_ types are not used on the ARM platform, but exist
105 * so that APIs that conditionalize their behavior based on the
106 * size of an input structure (like many ioctl(2) implementations)
107 * can differentiate those structures without a duplicate case
108 * value.
109 */
110
111/*
112 * The default ABI for the ARM platform aligns fundamental integral
113 * data types to their natural boundaries, with a maximum alignment
114 * of 4, even for 8-byte quantites.
115 */
116
117typedef __uint64_t user64_addr_t;
118typedef __uint64_t user64_size_t;
119typedef __int64_t user64_ssize_t;
120typedef __int64_t user64_long_t;
121typedef __uint64_t user64_ulong_t;
122typedef __int64_t user64_time_t;
123typedef __int64_t user64_off_t;
124
125typedef __uint32_t user32_addr_t;
126typedef __uint32_t user32_size_t;
127typedef __int32_t user32_ssize_t;
128typedef __int32_t user32_long_t;
129typedef __uint32_t user32_ulong_t;
130typedef __int32_t user32_time_t;
131
132/*
133 * This alignment is required to ensure symmetry between userspace and kernelspace
134 * when the kernel is 64-bit and the user application is 32-bit. All currently
135 * supported ARM slices (arm64/armv7k/arm64_32) contain the same type alignment
136 * ABI so this alignment isn't needed for ARM.
137 */
138#if defined(__x86_64__)
139typedef __int64_t user32_off_t __attribute__((aligned(4)));
140#else
141typedef __int64_t user32_off_t;
142#endif
143
144#endif /* KERNEL */
145
146#endif /* !_ANSI_SOURCE && (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
147
148/* This defines the size of syscall arguments after copying into the kernel: */
149#if defined(__arm__)
150typedef u_int32_t syscall_arg_t;
151#elif defined(__arm64__)
152typedef u_int64_t syscall_arg_t;
153#else
154#error Unknown architecture.
155#endif
156
157#endif /* __ASSEMBLER__ */
158#endif /* _MACHTYPES_H_ */
159