osfmk/mach/ppc/vm_types.h

   1 /*
   2  * Copyright (c) 2000-2004 Apple Computer, 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,
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  23  * Please see the License for the specific language governing rights and
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  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_COPYRIGHT@
  30  */
  31 /*
  32  * Mach Operating System
  33  * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
  34  * All Rights Reserved.
  35  *
  36  * Permission to use, copy, modify and distribute this software and its
  37  * documentation is hereby granted, provided that both the copyright
  38  * notice and this permission notice appear in all copies of the
  39  * software, derivative works or modified versions, and any portions
  40  * thereof, and that both notices appear in supporting documentation.
  41  *
  42  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  43  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  44  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  45  *
  46  * Carnegie Mellon requests users of this software to return to
  47  *
  48  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  49  *  School of Computer Science
  50  *  Carnegie Mellon University
  51  *  Pittsburgh PA 15213-3890
  52  *
  53  * any improvements or extensions that they make and grant Carnegie Mellon
  54  * the rights to redistribute these changes.
  55  */
  56 /*
  57  */
  58
  59 /*
  60  *      File:   vm_types.h
  61  *      Author: Avadis Tevanian, Jr.
  62  *      Date: 1985
  63  *
  64  *      Header file for VM data types.  PPC version.
  65  */
  66
  67 #ifndef _MACH_PPC_VM_TYPES_H_
  68 #define _MACH_PPC_VM_TYPES_H_
  69
  70 #ifndef ASSEMBLER
  71
  72 #include <ppc/_types.h>
  73 #include <ppc/vmparam.h>
  74 #include <stdint.h>
  75
  76 /*
  77  * natural_t and integer_t are Mach's legacy types for machine-
  78  * independent integer types (unsigned, and signed, respectively).
  79  * Their original purpose was to define other types in a machine/
  80  * compiler independent way.
  81  *
  82  * They also had an implicit "same size as pointer" characteristic
  83  * to them (i.e. Mach's traditional types are very ILP32 or ILP64
  84  * centric).  We support PowerPC ABIs that do not follow either of
  85  * these models (specifically LP64).  Therefore, we had to make a
  86  * choice between making these types scale with pointers or stay
  87  * tied to integers.  Because their use is predominantly tied to
  88  * to the size of an integer, we are keeping that association and
  89  * breaking free from pointer size guarantees.
  90  *
  91  * New use of these types is discouraged.
  92  */
  93 typedef __darwin_natural_t      natural_t;
  94 typedef int                     integer_t;
  95
  96 #if defined(__ppc__)
  97
  98 /*
  99  * For 32-bit PowerPC ABIs, the scalable types were
 100  * always based upon natural_t (unsigned int).
 101  * Because of potential legacy issues with name mangling,
 102  * we cannot use the stdint uintptr_t type.
 103  */
 104 typedef natural_t               vm_offset_t;
 105 typedef natural_t               vm_size_t;
 106
 107 #else /* __ppc64__ */
 108
 109 /*
 110  * For 64-bit PowerPC ABIs, we have no legacy name mangling
 111  * issues, so we use the stdint types for scaling these
 112  * types to the same size as a pointer.
 113  */
 114 typedef uintptr_t               vm_offset_t;
 115 typedef uintptr_t               vm_size_t;
 116
 117 #endif
 118
 119 /*
 120  * This new type is independent of a particular vm map's
 121  * implementation size - and represents appropriate types
 122  * for all possible maps.  This is used for interfaces
 123  * where the size of the map is not known - or we don't
 124  * want to have to distinguish.
 125  */
 126 typedef uint64_t                mach_vm_address_t;
 127 typedef uint64_t                mach_vm_offset_t;
 128 typedef uint64_t                mach_vm_size_t;
 129
 130 /* LP64todo - convert these over for good */
 131 #if 1
 132 typedef uint64_t                vm_map_offset_t;
 133 typedef uint64_t                vm_map_address_t;
 134 typedef uint64_t                vm_map_size_t;
 135 #else
 136 typedef uint32_t                vm_map_offset_t;
 137 typedef uint32_t                vm_map_address_t;
 138 typedef uint32_t                vm_map_size_t;
 139 #endif
 140
 141 #ifdef  MACH_KERNEL_PRIVATE
 142
 143 #ifdef  VM32_SUPPORT
 144
 145 /*
 146  * These are types used internal to Mach to implement the
 147  * legacy 32-bit VM APIs published by the kernel.
 148  */
 149 typedef uint32_t                vm32_address_t;
 150 typedef uint32_t                vm32_offset_t;
 151 typedef uint32_t                vm32_size_t;
 152
 153 #endif  /* VM32_SUPPORT */
 154
 155 #endif  /* MACH_KERNEL_PRIVATE */
 156
 157 #endif  /* ASSEMBLER */
 158
 159 /*
 160  * If composing messages by hand (please do not)
 161  */
 162 #define MACH_MSG_TYPE_INTEGER_T MACH_MSG_TYPE_INTEGER_32
 163
 164 #endif  /* _MACH_PPC_VM_TYPES_H_ */