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 _ARM_MACHTYPES_H_
43#define _ARM_MACHTYPES_H_
44#define _MACHTYPES_H_
45
46#if defined (__arm__) || defined (__arm64__)
47
48#ifndef __ASSEMBLER__
49#include <arm/_types.h>
50#include <sys/cdefs.h>
51/*
52 * Basic integral types. Omit the typedef if
53 * not possible for a machine/compiler combination.
54 */
55#include <sys/_types/_int8_t.h>
56#include <sys/_types/_int16_t.h>
57#include <sys/_types/_int32_t.h>
58#include <sys/_types/_int64_t.h>
59
60#include <sys/_types/_u_int8_t.h>
61#include <sys/_types/_u_int16_t.h>
62#include <sys/_types/_u_int32_t.h>
63#include <sys/_types/_u_int64_t.h>
64
65#if __LP64__
66typedef int64_t register_t;
67#else
68typedef int32_t register_t;
69#endif
70
71#include <sys/_types/_intptr_t.h>
72#include <sys/_types/_uintptr_t.h>
73
74#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
75/* These types are used for reserving the largest possible size. */
76#ifdef __arm64__
77typedef u_int64_t user_addr_t;
78typedef u_int64_t user_size_t;
79typedef int64_t user_ssize_t;
80typedef int64_t user_long_t;
81typedef u_int64_t user_ulong_t;
82typedef int64_t user_time_t;
83typedef int64_t user_off_t;
84#else
85typedef u_int32_t user_addr_t;
86typedef u_int32_t user_size_t;
87typedef int32_t user_ssize_t;
88typedef int32_t user_long_t;
89typedef u_int32_t user_ulong_t;
90typedef int32_t user_time_t;
91typedef int64_t user_off_t;
92#endif
93
94#define USER_ADDR_NULL ((user_addr_t) 0)
95#define CAST_USER_ADDR_T(a_ptr) ((user_addr_t)((uintptr_t)(a_ptr)))
96
97#ifdef KERNEL
98
99/*
100 * These types are used when you know the word size of the target
101 * user process. They can be used to create struct layouts independent
102 * of the types and alignment requirements of the current running
103 * kernel.
104 */
105
106/*
107 * The user64_ types are not used on the ARM platform, but exist
108 * so that APIs that conditionalize their behavior based on the
109 * size of an input structure (like many ioctl(2) implementations)
110 * can differentiate those structures without a duplicate case
111 * value.
112 */
113
114/*
115 * The default ABI for the ARM platform aligns fundamental integral
116 * data types to their natural boundaries, with a maximum alignment
117 * of 4, even for 8-byte quantites.
118 */
119
120typedef __uint64_t user64_addr_t;
121typedef __uint64_t user64_size_t;
122typedef __int64_t user64_ssize_t;
123typedef __int64_t user64_long_t;
124typedef __uint64_t user64_ulong_t;
125typedef __int64_t user64_time_t;
126typedef __int64_t user64_off_t;
127
128typedef __uint32_t user32_addr_t;
129typedef __uint32_t user32_size_t;
130typedef __int32_t user32_ssize_t;
131typedef __int32_t user32_long_t;
132typedef __uint32_t user32_ulong_t;
133typedef __int32_t user32_time_t;
134
135/*
136 * This alignment is required to ensure symmetry between userspace and kernelspace
137 * when the kernel is 64-bit and the user application is 32-bit. All currently
138 * supported ARM slices (arm64/armv7k/arm64_32) contain the same type alignment
139 * ABI so this alignment isn't needed for ARM.
140 */
141#if defined(__x86_64__)
142typedef __int64_t user32_off_t __attribute__((aligned(4)));
143#else
144typedef __int64_t user32_off_t;
145#endif
146
147#endif /* KERNEL */
148
149#endif /* !_ANSI_SOURCE && (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
150
151/* This defines the size of syscall arguments after copying into the kernel: */
152#if defined(__arm__)
153typedef u_int32_t syscall_arg_t;
154#elif defined(__arm64__)
155typedef u_int64_t syscall_arg_t;
156#else
157#error Unknown architecture.
158#endif
159
160#endif /* __ASSEMBLER__ */
161#endif /* defined (__arm__) || defined (__arm64__) */
162#endif /* _ARM_MACHTYPES_H_ */
163