text: /*
   * Copyright (c) 2000-2018 Apple Inc. All rights reserved.
   *
   * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   *
   * This file contains Original Code and/or Modifications of Original Code
   * as defined in and that are subject to the Apple Public Source License
   * Version 2.0 (the 'License'). You may not use this file except in
   * compliance with the License. The rights granted to you under the License
   * may not be used to create, or enable the creation or redistribution of,
   * unlawful or unlicensed copies of an Apple operating system, or to
   * circumvent, violate, or enable the circumvention or violation of, any
   * terms of an Apple operating system software license agreement.
   *
   * Please obtain a copy of the License at
   * http://www.opensource.apple.com/apsl/ and read it before using this file.
   *
   * The Original Code and all software distributed under the License are
   * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
   * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
   * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
   * Please see the License for the specific language governing rights and
   * limitations under the License.
   *
   * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
   */
  /*
   * @OSF_COPYRIGHT@
   *
   */
  #ifndef _MACH_VM_TYPES_H_
  #define _MACH_VM_TYPES_H_
  
  #include <mach/port.h>
  #include <mach/machine/vm_types.h>
  
  #include <stdint.h>
  
  typedef vm_offset_t             pointer_t;
  typedef vm_offset_t             vm_address_t;
  
  /*
   * We use addr64_t for 64-bit addresses that are used on both
   * 32 and 64-bit machines.  On PPC, they are passed and returned as
   * two adjacent 32-bit GPRs.  We use addr64_t in places where
   * common code must be useable both on 32 and 64-bit machines.
   */
  typedef uint64_t addr64_t;              /* Basic effective address */
  
  /*
   * We use reg64_t for addresses that are 32 bits on a 32-bit
   * machine, and 64 bits on a 64-bit machine, but are always
   * passed and returned in a single GPR on PPC.  This type
   * cannot be used in generic 32-bit c, since on a 64-bit
   * machine the upper half of the register will be ignored
   * by the c compiler in 32-bit mode.  In c, we can only use the
   * type in prototypes of functions that are written in and called
   * from assembly language.  This type is basically a comment.
   */
  typedef uint32_t        reg64_t;
  
  /*
   * To minimize the use of 64-bit fields, we keep some physical
   * addresses (that are page aligned) as 32-bit page numbers.
   * This limits the physical address space to 16TB of RAM.
   */
  typedef uint32_t ppnum_t;               /* Physical page number */
  #define PPNUM_MAX UINT32_MAX
  
  
  
  typedef mach_port_t             vm_map_t, vm_map_read_t, vm_map_inspect_t;
  
  
  #define VM_MAP_NULL             ((vm_map_t) 0)
  #define VM_MAP_INSPECT_NULL     ((vm_map_inspect_t) 0)
  #define VM_MAP_READ_NULL        ((vm_map_read_t) 0)
  
  /*
   * Evolving definitions, likely to change.
   */
  
  typedef uint64_t                vm_object_offset_t;
  typedef uint64_t                vm_object_size_t;
  
  
  
  
  typedef mach_port_t             upl_t;
  typedef mach_port_t             vm_named_entry_t;
  
  
  #define UPL_NULL                ((upl_t) 0)
  #define VM_NAMED_ENTRY_NULL     ((vm_named_entry_t) 0)
  
  #endif  /* _MACH_VM_TYPES_H_ */