bsd/sys/vm.h

   1 /*
   2  * Copyright (c) 2000-2006 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,
  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 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  29 /*
  30  * Copyright (c) 1991, 1993
  31  *      The Regents of the University of California.  All rights reserved.
  32  *
  33  * Redistribution and use in source and binary forms, with or without
  34  * modification, are permitted provided that the following conditions
  35  * are met:
  36  * 1. Redistributions of source code must retain the above copyright
  37  *    notice, this list of conditions and the following disclaimer.
  38  * 2. Redistributions in binary form must reproduce the above copyright
  39  *    notice, this list of conditions and the following disclaimer in the
  40  *    documentation and/or other materials provided with the distribution.
  41  * 3. All advertising materials mentioning features or use of this software
  42  *    must display the following acknowledgement:
  43  *      This product includes software developed by the University of
  44  *      California, Berkeley and its contributors.
  45  * 4. Neither the name of the University nor the names of its contributors
  46  *    may be used to endorse or promote products derived from this software
  47  *    without specific prior written permission.
  48  *
  49  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  50  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  51  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  52  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  53  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  54  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  55  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  56  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  57  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  58  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  59  * SUCH DAMAGE.
  60  *
  61  *      @(#)vm.h        8.5 (Berkeley) 5/11/95
  62  */
  63 /* HISTORY
  64  *  05-Jun-95  Mac Gillon (mgillon) at NeXT
  65  *      4.4 code uses this file to import MACH API
  66  */
  67
  68 #ifndef _SYS_VM_H
  69 #define _SYS_VM_H
  70
  71 #include <sys/appleapiopts.h>
  72 #include <sys/cdefs.h>
  73
  74 #ifdef BSD_KERNEL_PRIVATE
  75
  76 /* Machine specific config stuff */
  77 #if     defined(KERNEL) && !defined(MACH_USER_API)
  78 #include <sys/vmmeter.h>
  79 #include <sys/queue.h>
  80 #include <mach/vm_param.h>
  81 #endif
  82
  83 /*
  84  * Shareable process virtual address space.
  85  * May eventually be merged with vm_map.
  86  * Several fields are temporary (text, data stuff).
  87  */
  88 struct vmspace {
  89         int     vm_refcnt;      /* number of references */
  90         caddr_t vm_shm;         /* SYS5 shared memory private data XXX */
  91 /* we copy from vm_startcopy to the end of the structure on fork */
  92 #define vm_startcopy vm_rssize
  93         segsz_t vm_rssize;      /* current resident set size in pages */
  94         segsz_t vm_swrss;       /* resident set size before last swap */
  95         segsz_t vm_tsize;       /* text size (pages) XXX */
  96         segsz_t vm_dsize;       /* data size (pages) XXX */
  97         segsz_t vm_ssize;       /* stack size (pages) */
  98         caddr_t vm_taddr;       /* user virtual address of text XXX */
  99         caddr_t vm_daddr;       /* user virtual address of data XXX */
 100         caddr_t vm_maxsaddr;    /* user VA at max stack growth */
 101 };
 102
 103 #ifdef KERNEL
 104 /* LP64 version of vmspace.  all pointers
 105  * grow when we're dealing with a 64-bit process.
 106  * WARNING - keep in sync with vmspace
 107  */
 108
 109 struct user32_vmspace {
 110         int             vm_refcnt;      /* number of references */
 111         uint32_t        vm_shm;                 /* SYS5 shared memory private data XXX */
 112         segsz_t         vm_rssize;              /* current resident set size in pages */
 113         segsz_t         vm_swrss;               /* resident set size before last swap */
 114         segsz_t         vm_tsize;               /* text size (pages) XXX */
 115         segsz_t         vm_dsize;               /* data size (pages) XXX */
 116         segsz_t         vm_ssize;               /* stack size (pages) */
 117         uint32_t        vm_taddr;       /* user virtual address of text XXX */
 118         uint32_t        vm_daddr;       /* user virtual address of data XXX */
 119         uint32_t vm_maxsaddr;   /* user VA at max stack growth */
 120 };
 121 struct user_vmspace {
 122         int             vm_refcnt;      /* number of references */
 123         user_addr_t     vm_shm __attribute((aligned(8)));                       /* SYS5 shared memory private data XXX */
 124         segsz_t         vm_rssize;              /* current resident set size in pages */
 125         segsz_t         vm_swrss;               /* resident set size before last swap */
 126         segsz_t         vm_tsize;               /* text size (pages) XXX */
 127         segsz_t         vm_dsize;               /* data size (pages) XXX */
 128         segsz_t         vm_ssize;               /* stack size (pages) */
 129         user_addr_t     vm_taddr __attribute((aligned(8)));       /* user virtual address of text XXX */
 130         user_addr_t     vm_daddr;       /* user virtual address of data XXX */
 131         user_addr_t vm_maxsaddr;        /* user VA at max stack growth */
 132 };
 133
 134 #endif /* KERNEL */
 135
 136 #include <kern/thread.h>
 137
 138 #else /* BSD_KERNEL_PRIVATE */
 139
 140 #include <sys/_types/_caddr_t.h> /* caddr_t */
 141 #include <sys/_types/_int32_t.h> /* int32_t */
 142
 143 /* just to keep kinfo_proc happy */
 144 /* NOTE: Pointer fields are size variant for LP64 */
 145 struct vmspace {
 146         int32_t dummy;
 147         caddr_t dummy2;
 148         int32_t dummy3[5];
 149         caddr_t dummy4[3];
 150 };
 151
 152 #endif /* BSD_KERNEL_PRIVATE */
 153
 154 #ifdef KERNEL
 155
 156 __BEGIN_DECLS
 157 struct proc *current_proc(void);
 158 __END_DECLS
 159
 160 #endif /* KERNEL */
 161
 162 #endif /* _SYS_VM_H */