The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/sys/mman.h

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*      $NetBSD: mman.h,v 1.34 2003/10/07 00:17:09 thorpej Exp $        */
    2 
    3 /*-
    4  * Copyright (c) 1982, 1986, 1993
    5  *      The Regents of the University of California.  All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. Neither the name of the University nor the names of its contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  *      @(#)mman.h      8.2 (Berkeley) 1/9/95
   32  */
   33 
   34 #ifndef _SYS_MMAN_H_
   35 #define _SYS_MMAN_H_
   36 
   37 #include <sys/featuretest.h>
   38 
   39 #include <machine/ansi.h>
   40 
   41 #ifdef  _BSD_SIZE_T_
   42 typedef _BSD_SIZE_T_    size_t;
   43 #undef  _BSD_SIZE_T_
   44 #endif
   45 
   46 #include <sys/ansi.h>
   47 
   48 #ifndef mode_t
   49 typedef __mode_t        mode_t;
   50 #define mode_t          __mode_t
   51 #endif
   52 
   53 #ifndef off_t
   54 typedef __off_t         off_t;          /* file offset */
   55 #define off_t           __off_t
   56 #endif
   57 
   58 
   59 /*
   60  * Protections are chosen from these bits, or-ed together
   61  */
   62 #define PROT_NONE       0x00    /* no permissions */
   63 #define PROT_READ       0x01    /* pages can be read */
   64 #define PROT_WRITE      0x02    /* pages can be written */
   65 #define PROT_EXEC       0x04    /* pages can be executed */
   66 
   67 /*
   68  * Flags contain sharing type and options.
   69  * Sharing types; choose one.
   70  */
   71 #define MAP_SHARED      0x0001  /* share changes */
   72 #define MAP_PRIVATE     0x0002  /* changes are private */
   73 
   74 #ifdef _KERNEL
   75 /*
   76  * Deprecated flag; these are treated as MAP_PRIVATE internally by
   77  * the kernel.
   78  */
   79 #define MAP_COPY        0x0004  /* "copy" region at mmap time */
   80 #endif
   81 
   82 /*
   83  * Other flags
   84  */
   85 #define MAP_FIXED        0x0010 /* map addr must be exactly as requested */
   86 #define MAP_RENAME       0x0020 /* Sun: rename private pages to file */
   87 #define MAP_NORESERVE    0x0040 /* Sun: don't reserve needed swap area */
   88 #define MAP_INHERIT      0x0080 /* region is retained after exec */
   89 #define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */
   90 #define MAP_TRYFIXED     0x0400 /* attempt hint address, even within break */
   91 #define MAP_WIRED        0x0800 /* mlock() mapping when it is established */
   92 
   93 /*
   94  * Mapping type
   95  */
   96 #define MAP_FILE        0x0000  /* map from file (default) */
   97 #define MAP_ANON        0x1000  /* allocated from memory, swap space */
   98 
   99 /*
  100  * Alignment (expressed in log2).  Must be >= log2(PAGE_SIZE) and
  101  * < # bits in a pointer (26 (acorn26), 32 or 64).
  102  */
  103 #define MAP_ALIGNED(n)          ((n) << MAP_ALIGNMENT_SHIFT)
  104 #define MAP_ALIGNMENT_SHIFT     24
  105 #define MAP_ALIGNMENT_MASK      MAP_ALIGNED(0xff)
  106 #define MAP_ALIGNMENT_64KB      MAP_ALIGNED(16) /* 2^16 */
  107 #define MAP_ALIGNMENT_16MB      MAP_ALIGNED(24) /* 2^24 */
  108 #define MAP_ALIGNMENT_4GB       MAP_ALIGNED(32) /* 2^32 */
  109 #define MAP_ALIGNMENT_1TB       MAP_ALIGNED(40) /* 2^40 */
  110 #define MAP_ALIGNMENT_256TB     MAP_ALIGNED(48) /* 2^48 */
  111 #define MAP_ALIGNMENT_64PB      MAP_ALIGNED(56) /* 2^56 */
  112 
  113 /*
  114  * Error indicator returned by mmap(2)
  115  */
  116 #define MAP_FAILED      ((void *) -1)   /* mmap() failed */
  117 
  118 /*
  119  * Flags to msync
  120  */
  121 #define MS_ASYNC        0x01    /* perform asynchronous writes */
  122 #define MS_INVALIDATE   0x02    /* invalidate cached data */
  123 #define MS_SYNC         0x04    /* perform synchronous writes */
  124 
  125 /*
  126  * Flags to mlockall
  127  */
  128 #define MCL_CURRENT     0x01    /* lock all pages currently mapped */
  129 #define MCL_FUTURE      0x02    /* lock all pages mapped in the future */
  130 
  131 #if defined(_NETBSD_SOURCE)
  132 /*
  133  * Advice to madvise
  134  */
  135 #define MADV_NORMAL     0       /* no further special treatment */
  136 #define MADV_RANDOM     1       /* expect random page references */
  137 #define MADV_SEQUENTIAL 2       /* expect sequential page references */
  138 #define MADV_WILLNEED   3       /* will need these pages */
  139 #define MADV_DONTNEED   4       /* dont need these pages */
  140 #define MADV_SPACEAVAIL 5       /* insure that resources are reserved */
  141 #define MADV_FREE       6       /* pages are empty, free them */
  142 /*
  143  * Flags to minherit
  144  */
  145 #define MAP_INHERIT_SHARE       0       /* share with child */
  146 #define MAP_INHERIT_COPY        1       /* copy into child */
  147 #define MAP_INHERIT_NONE        2       /* absent from child */
  148 #define MAP_INHERIT_DONATE_COPY 3       /* copy and delete -- not
  149                                            implemented in UVM */
  150 #define MAP_INHERIT_DEFAULT     MAP_INHERIT_COPY
  151 #endif
  152 
  153 #ifndef _KERNEL
  154 
  155 #include <sys/cdefs.h>
  156 
  157 __BEGIN_DECLS
  158 void   *mmap __P((void *, size_t, int, int, int, off_t));
  159 int     munmap __P((void *, size_t));
  160 int     mprotect __P((void *, size_t, int));
  161 #ifdef __LIBC12_SOURCE__
  162 int     msync __P((void *, size_t));
  163 int     __msync13 __P((void *, size_t, int));
  164 #else
  165 int     msync __P((void *, size_t, int))        __RENAME(__msync13);
  166 #endif
  167 int     mlock __P((const void *, size_t));
  168 int     munlock __P((const void *, size_t));
  169 int     mlockall __P((int));
  170 int     munlockall __P((void));
  171 #if defined(_NETBSD_SOURCE)
  172 int     madvise __P((void *, size_t, int));
  173 int     mincore __P((void *, size_t, char *));
  174 int     minherit __P((void *, size_t, int));
  175 #endif
  176 __END_DECLS
  177 
  178 #endif /* !_KERNEL */
  179 
  180 #endif /* !_SYS_MMAN_H_ */

Cache object: a8c4c76de5dc385fba72904c7a6a0227


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.