osfmk/mach/ppc/vm_types.h

   1 /*
   2  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * @OSF_COPYRIGHT@
  24  */
  25 /*
  26  * Mach Operating System
  27  * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
  28  * All Rights Reserved.
  29  *
  30  * Permission to use, copy, modify and distribute this software and its
  31  * documentation is hereby granted, provided that both the copyright
  32  * notice and this permission notice appear in all copies of the
  33  * software, derivative works or modified versions, and any portions
  34  * thereof, and that both notices appear in supporting documentation.
  35  *
  36  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  37  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  38  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  39  *
  40  * Carnegie Mellon requests users of this software to return to
  41  *
  42  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  43  *  School of Computer Science
  44  *  Carnegie Mellon University
  45  *  Pittsburgh PA 15213-3890
  46  *
  47  * any improvements or extensions that they make and grant Carnegie Mellon
  48  * the rights to redistribute these changes.
  49  */
  50 /*
  51  */
  52
  53 /*
  54  *      File:   vm_types.h
  55  *      Author: Avadis Tevanian, Jr.
  56  *      Date: 1985
  57  *
  58  *      Header file for VM data types.  PPC version.
  59  */
  60
  61 #ifndef _MACH_PPC_VM_TYPES_H_
  62 #define _MACH_PPC_VM_TYPES_H_
  63
  64 #ifndef ASSEMBLER
  65
  66 #include <ppc/_types.h>
  67 #include <ppc/vmparam.h>
  68 #include <stdint.h>
  69
  70 /*
  71  * natural_t and integer_t are Mach's legacy types for machine-
  72  * independent integer types (unsigned, and signed, respectively).
  73  * Their original purpose was to define other types in a machine/
  74  * compiler independent way.
  75  *
  76  * They also had an implicit "same size as pointer" characteristic
  77  * to them (i.e. Mach's traditional types are very ILP32 or ILP64
  78  * centric).  We support PowerPC ABIs that do not follow either of
  79  * these models (specifically LP64).  Therefore, we had to make a
  80  * choice between making these types scale with pointers or stay
  81  * tied to integers.  Because their use is predominantly tied to
  82  * to the size of an integer, we are keeping that association and
  83  * breaking free from pointer size guarantees.
  84  *
  85  * New use of these types is discouraged.
  86  */
  87 typedef __darwin_natural_t      natural_t;
  88 typedef int                     integer_t;
  89
  90 #if defined(__ppc__)
  91
  92 /*
  93  * For 32-bit PowerPC ABIs, the scalable types were
  94  * always based upon natural_t (unsigned int).
  95  * Because of potential legacy issues with name mangling,
  96  * we cannot use the stdint uintptr_t type.
  97  */
  98 typedef natural_t               vm_offset_t;
  99 typedef natural_t               vm_size_t;
 100
 101 #else /* __ppc64__ */
 102
 103 /*
 104  * For 64-bit PowerPC ABIs, we have no legacy name mangling
 105  * issues, so we use the stdint types for scaling these
 106  * types to the same size as a pointer.
 107  */
 108 typedef uintptr_t               vm_offset_t;
 109 typedef uintptr_t               vm_size_t;
 110
 111 #endif
 112
 113 /*
 114  * This new type is independent of a particular vm map's
 115  * implementation size - and represents appropriate types
 116  * for all possible maps.  This is used for interfaces
 117  * where the size of the map is not known - or we don't
 118  * want to have to distinguish.
 119  */
 120 typedef uint64_t                mach_vm_address_t;
 121 typedef uint64_t                mach_vm_offset_t;
 122 typedef uint64_t                mach_vm_size_t;
 123
 124 /* LP64todo - convert these over for good */
 125 #if 1
 126 typedef uint64_t                vm_map_offset_t;
 127 typedef uint64_t                vm_map_address_t;
 128 typedef uint64_t                vm_map_size_t;
 129 #else
 130 typedef uint32_t                vm_map_offset_t;
 131 typedef uint32_t                vm_map_address_t;
 132 typedef uint32_t                vm_map_size_t;
 133 #endif
 134
 135 #ifdef  MACH_KERNEL_PRIVATE
 136
 137 #ifdef  VM32_SUPPORT
 138
 139 /*
 140  * These are types used internal to Mach to implement the
 141  * legacy 32-bit VM APIs published by the kernel.
 142  */
 143 typedef uint32_t                vm32_address_t;
 144 typedef uint32_t                vm32_offset_t;
 145 typedef uint32_t                vm32_size_t;
 146
 147 #endif  /* VM32_SUPPORT */
 148
 149 #endif  /* MACH_KERNEL_PRIVATE */
 150
 151 #endif  /* ASSEMBLER */
 152
 153 /*
 154  * If composing messages by hand (please do not)
 155  */
 156 #define MACH_MSG_TYPE_INTEGER_T MACH_MSG_TYPE_INTEGER_32
 157
 158 #endif  /* _MACH_PPC_VM_TYPES_H_ */