bsd/sys/vm.h

   1 /*
   2  * Copyright (c) 2000-2005 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 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  23 /*
  24  * Copyright (c) 1991, 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  *
  27  * Redistribution and use in source and binary forms, with or without
  28  * modification, are permitted provided that the following conditions
  29  * are met:
  30  * 1. Redistributions of source code must retain the above copyright
  31  *    notice, this list of conditions and the following disclaimer.
  32  * 2. Redistributions in binary form must reproduce the above copyright
  33  *    notice, this list of conditions and the following disclaimer in the
  34  *    documentation and/or other materials provided with the distribution.
  35  * 3. All advertising materials mentioning features or use of this software
  36  *    must display the following acknowledgement:
  37  *      This product includes software developed by the University of
  38  *      California, Berkeley and its contributors.
  39  * 4. Neither the name of the University nor the names of its contributors
  40  *    may be used to endorse or promote products derived from this software
  41  *    without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  *      @(#)vm.h        8.5 (Berkeley) 5/11/95
  56  */
  57 /* HISTORY
  58  *  05-Jun-95  Mac Gillon (mgillon) at NeXT
  59  *      4.4 code uses this file to import MACH API
  60  */
  61
  62 #ifndef _SYS_VM_H
  63 #define _SYS_VM_H
  64
  65 #include <sys/appleapiopts.h>
  66 #include <sys/cdefs.h>
  67
  68 #ifdef BSD_KERNEL_PRIVATE
  69
  70 /* Machine specific config stuff */
  71 #if     defined(KERNEL) && !defined(MACH_USER_API)
  72 #include <sys/vmmeter.h>
  73 #include <sys/queue.h>
  74 #include <mach/vm_param.h>
  75 #endif
  76
  77 /*
  78  * Shareable process virtual address space.
  79  * May eventually be merged with vm_map.
  80  * Several fields are temporary (text, data stuff).
  81  */
  82 struct vmspace {
  83         int     vm_refcnt;      /* number of references */
  84         caddr_t vm_shm;         /* SYS5 shared memory private data XXX */
  85 /* we copy from vm_startcopy to the end of the structure on fork */
  86 #define vm_startcopy vm_rssize
  87         segsz_t vm_rssize;      /* current resident set size in pages */
  88         segsz_t vm_swrss;       /* resident set size before last swap */
  89         segsz_t vm_tsize;       /* text size (pages) XXX */
  90         segsz_t vm_dsize;       /* data size (pages) XXX */
  91         segsz_t vm_ssize;       /* stack size (pages) */
  92         caddr_t vm_taddr;       /* user virtual address of text XXX */
  93         caddr_t vm_daddr;       /* user virtual address of data XXX */
  94         caddr_t vm_maxsaddr;    /* user VA at max stack growth */
  95 };
  96
  97 #ifdef KERNEL
  98 // LP64todo - should this move?
  99 /* LP64 version of vmspace.  all pointers
 100  * grow when we're dealing with a 64-bit process.
 101  * WARNING - keep in sync with vmspace
 102  */
 103
 104 struct user_vmspace {
 105         int             vm_refcnt;      /* number of references */
 106         user_addr_t     vm_shm __attribute((aligned(8)));                       /* SYS5 shared memory private data XXX */
 107         segsz_t         vm_rssize;              /* current resident set size in pages */
 108         segsz_t         vm_swrss;               /* resident set size before last swap */
 109         segsz_t         vm_tsize;               /* text size (pages) XXX */
 110         segsz_t         vm_dsize;               /* data size (pages) XXX */
 111         segsz_t         vm_ssize;               /* stack size (pages) */
 112         user_addr_t     vm_taddr __attribute((aligned(8)));       /* user virtual address of text XXX */
 113         user_addr_t     vm_daddr;       /* user virtual address of data XXX */
 114         user_addr_t vm_maxsaddr;        /* user VA at max stack growth */
 115 };
 116
 117 #endif /* KERNEL */
 118
 119 #include <kern/thread.h>
 120
 121 #else /* BSD_KERNEL_PRIVATE */
 122 /* just to keep kinfo_proc happy */
 123 /* NOTE: Pointer fields are size variant for LP64 */
 124 struct vmspace {
 125         int32_t dummy;
 126         caddr_t dummy2;
 127         int32_t dummy3[5];
 128         caddr_t dummy4[3];
 129 };
 130
 131 #endif /* BSD_KERNEL_PRIVATE */
 132
 133 #ifdef KERNEL
 134
 135 __BEGIN_DECLS
 136 struct proc *current_proc(void);
 137 __END_DECLS
 138
 139 #endif /* KERNEL */
 140
 141 #endif /* _SYS_VM_H */