bsd/i386/types.h

   1 /*
   2  * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * Copyright 1995 NeXT Computer, Inc. All rights reserved.
  30  */
  31 /*
  32  * Copyright (c) 1990, 1993
  33  *      The Regents of the University of California.  All rights reserved.
  34  *
  35  * Redistribution and use in source and binary forms, with or without
  36  * modification, are permitted provided that the following conditions
  37  * are met:
  38  * 1. Redistributions of source code must retain the above copyright
  39  *    notice, this list of conditions and the following disclaimer.
  40  * 2. Redistributions in binary form must reproduce the above copyright
  41  *    notice, this list of conditions and the following disclaimer in the
  42  *    documentation and/or other materials provided with the distribution.
  43  * 3. All advertising materials mentioning features or use of this software
  44  *    must display the following acknowledgement:
  45  *      This product includes software developed by the University of
  46  *      California, Berkeley and its contributors.
  47  * 4. Neither the name of the University nor the names of its contributors
  48  *    may be used to endorse or promote products derived from this software
  49  *    without specific prior written permission.
  50  *
  51  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  52  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  53  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  54  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  55  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  56  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  57  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  58  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  59  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  60  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  61  * SUCH DAMAGE.
  62  *
  63  *      @(#)types.h     8.3 (Berkeley) 1/5/94
  64  */
  65
  66 #ifndef _MACHTYPES_H_
  67 #define _MACHTYPES_H_
  68
  69 #ifndef __ASSEMBLER__
  70 #include <i386/_types.h>
  71 #include <sys/cdefs.h>
  72 /*
  73  * Basic integral types.  Omit the typedef if
  74  * not possible for a machine/compiler combination.
  75  */
  76 #ifndef _INT8_T
  77 #define _INT8_T
  78 typedef __signed char           int8_t;
  79 #endif
  80 typedef unsigned char           u_int8_t;
  81 #ifndef _INT16_T
  82 #define _INT16_T
  83 typedef short                   int16_t;
  84 #endif
  85 typedef unsigned short          u_int16_t;
  86 #ifndef _INT32_T
  87 #define _INT32_T
  88 typedef int                     int32_t;
  89 #endif
  90 typedef unsigned int            u_int32_t;
  91 #ifndef _INT64_T
  92 #define _INT64_T
  93 typedef long long               int64_t;
  94 #endif
  95 typedef unsigned long long      u_int64_t;
  96
  97 #if __LP64__
  98 typedef int64_t                 register_t;
  99 #else
 100 typedef int32_t                 register_t;
 101 #endif
 102
 103 #ifndef _INTPTR_T
 104 #define _INTPTR_T
 105 typedef __darwin_intptr_t       intptr_t;
 106 #endif
 107 #ifndef _UINTPTR_T
 108 #define _UINTPTR_T
 109 typedef unsigned long           uintptr_t;
 110 #endif
 111
 112 #if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
 113 /* These types are used for reserving the largest possible size. */
 114 typedef u_int64_t               user_addr_t;
 115 typedef u_int64_t               user_size_t;
 116 typedef int64_t                 user_ssize_t;
 117 typedef int64_t                 user_long_t;
 118 typedef u_int64_t               user_ulong_t;
 119 typedef int64_t                 user_time_t;
 120 typedef int64_t                 user_off_t;
 121 #define USER_ADDR_NULL  ((user_addr_t) 0)
 122 #define CAST_USER_ADDR_T(a_ptr)   ((user_addr_t)((uintptr_t)(a_ptr)))
 123
 124 #ifdef KERNEL
 125
 126 /*
 127  * These types are used when you know the word size of the target
 128  * user process. They can be used to create struct layouts independent
 129  * of the types and alignment requirements of the current running
 130  * kernel.
 131  */
 132
 133 /*
 134  * The default ABI for the 32-bit Intel userspace aligns fundamental
 135  * integral data types to their natural boundaries, with a maximum alignment
 136  * of 4, even for 8-byte quantites. The default ABI for 64-bit Intel
 137  * userspace aligns fundamental integral data types for their natural
 138  * boundaries, including those in composite data types. PowerPC applications
 139  * running under translation must conform to the 32-bit Intel ABI.
 140  */
 141
 142 typedef __uint64_t              user64_addr_t __attribute__((aligned(8)));
 143 typedef __uint64_t              user64_size_t __attribute__((aligned(8)));
 144 typedef __int64_t               user64_ssize_t __attribute__((aligned(8)));
 145 typedef __int64_t               user64_long_t __attribute__((aligned(8)));
 146 typedef __uint64_t              user64_ulong_t __attribute__((aligned(8)));
 147 typedef __int64_t               user64_time_t __attribute__((aligned(8)));
 148 typedef __int64_t               user64_off_t __attribute__((aligned(8)));
 149
 150 typedef __uint32_t              user32_addr_t;
 151 typedef __uint32_t              user32_size_t;
 152 typedef __int32_t               user32_ssize_t;
 153 typedef __int32_t               user32_long_t;
 154 typedef __uint32_t              user32_ulong_t;
 155 typedef __int32_t               user32_time_t;
 156 typedef __int64_t               user32_off_t __attribute__((aligned(4)));
 157
 158 #endif /* KERNEL */
 159
 160 #endif /* !_ANSI_SOURCE && (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
 161
 162 /* This defines the size of syscall arguments after copying into the kernel: */
 163 typedef u_int64_t               syscall_arg_t;
 164
 165 #ifndef __offsetof
 166 #define __offsetof(type, field) ((size_t)(&((type *)0)->field))
 167 #endif
 168
 169 #endif /* __ASSEMBLER__ */
 170 #endif  /* _MACHTYPES_H_ */