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__ 66 typedef int64_t register_t; 67 #else 68 typedef 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__ 77 typedef u_int64_t user_addr_t; 78 typedef u_int64_t user_size_t; 79 typedef int64_t user_ssize_t; 80 typedef int64_t user_long_t; 81 typedef u_int64_t user_ulong_t; 82 typedef int64_t user_time_t; 83 typedef int64_t user_off_t; 84 #else 85 typedef u_int32_t user_addr_t; 86 typedef u_int32_t user_size_t; 87 typedef int32_t user_ssize_t; 88 typedef int32_t user_long_t; 89 typedef u_int32_t user_ulong_t; 90 typedef int32_t user_time_t; 91 typedef 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 */ 119 120 typedef __uint64_t user64_addr_t; 121 typedef __uint64_t user64_size_t; 122 typedef __int64_t user64_ssize_t; 123 typedef __int64_t user64_long_t; 124 typedef __uint64_t user64_ulong_t; 125 typedef __int64_t user64_time_t; 126 typedef __int64_t user64_off_t; 127 128 typedef __uint32_t user32_addr_t; 129 typedef __uint32_t user32_size_t; 130 typedef __int32_t user32_ssize_t; 131 typedef __int32_t user32_long_t; 132 typedef __uint32_t user32_ulong_t; 133 typedef __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__) 142 typedef __int64_t user32_off_t __attribute__((aligned(4))); 143 #else 144 typedef __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__) 153 typedef u_int32_t syscall_arg_t; 154 #elif defined(__arm64__) 155 typedef 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