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 #if KERNEL 95 #ifndef VM_UNSAFE_TYPES 96 typedef user_addr_t user_addr_ut; 97 typedef user_size_t user_size_ut; 98 #endif /* VM_SAFE_TYPES */ 99 #endif /* KERNEL */ 100 101 #define USER_ADDR_NULL ((user_addr_t) 0) 102 #define CAST_USER_ADDR_T(a_ptr) ((user_addr_t)((uintptr_t)(a_ptr))) 103 104 #ifdef KERNEL 105 106 /* 107 * These types are used when you know the word size of the target 108 * user process. They can be used to create struct layouts independent 109 * of the types and alignment requirements of the current running 110 * kernel. 111 */ 112 113 /* 114 * The user64_ types are not used on the ARM platform, but exist 115 * so that APIs that conditionalize their behavior based on the 116 * size of an input structure (like many ioctl(2) implementations) 117 * can differentiate those structures without a duplicate case 118 * value. 119 */ 120 121 /* 122 * The default ABI for the ARM platform aligns fundamental integral 123 * data types to their natural boundaries, with a maximum alignment 124 * of 4, even for 8-byte quantites. 125 */ 126 127 typedef __uint64_t user64_addr_t; 128 typedef __uint64_t user64_size_t; 129 typedef __int64_t user64_ssize_t; 130 typedef __int64_t user64_long_t; 131 typedef __uint64_t user64_ulong_t; 132 typedef __int64_t user64_time_t; 133 typedef __int64_t user64_off_t; 134 135 typedef __uint32_t user32_addr_t; 136 typedef __uint32_t user32_size_t; 137 typedef __int32_t user32_ssize_t; 138 typedef __int32_t user32_long_t; 139 typedef __uint32_t user32_ulong_t; 140 typedef __int32_t user32_time_t; 141 142 /* 143 * This alignment is required to ensure symmetry between userspace and kernelspace 144 * when the kernel is 64-bit and the user application is 32-bit. All currently 145 * supported ARM slices (arm64/armv7k/arm64_32) contain the same type alignment 146 * ABI so this alignment isn't needed for ARM. 147 */ 148 #if defined(__x86_64__) 149 typedef __int64_t user32_off_t __attribute__((aligned(4))); 150 #else 151 typedef __int64_t user32_off_t; 152 #endif 153 154 #endif /* KERNEL */ 155 156 #endif /* !_ANSI_SOURCE && (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 157 158 /* This defines the size of syscall arguments after copying into the kernel: */ 159 #if defined(__arm__) 160 typedef u_int32_t syscall_arg_t; 161 #elif defined(__arm64__) 162 typedef u_int64_t syscall_arg_t; 163 #else 164 #error Unknown architecture. 165 #endif 166 167 #endif /* __ASSEMBLER__ */ 168 #endif /* defined (__arm__) || defined (__arm64__) */ 169 #endif /* _ARM_MACHTYPES_H_ */ 170