sys/compat/linux/common/linux_mmap.h

   1 /*      $NetBSD: linux_mmap.h,v 1.20 2007/12/20 23:02:55 dsl Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Frank van der Linden and Eric Haszlakiewicz.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _LINUX_MMAP_H
  33 #define _LINUX_MMAP_H
  34
  35 #define LINUX_PROT_NONE         0x00
  36 #define LINUX_PROT_READ         0x01
  37 #define LINUX_PROT_WRITE        0x02
  38 #define LINUX_PROT_EXEC         0x04
  39 #define LINUX_PROT_GROWSDOWN    0x01000000
  40 #define LINUX_PROT_GROWSUP      0x02000000
  41
  42 #define LINUX_MAP_SHARED        0x0001
  43 #define LINUX_MAP_PRIVATE       0x0002
  44
  45 #if defined(__i386__)
  46 #include <compat/linux/arch/i386/linux_mmap.h>
  47 #elif defined(__m68k__)
  48 #include <compat/linux/arch/m68k/linux_mmap.h>
  49 #elif defined(__alpha__)
  50 #include <compat/linux/arch/alpha/linux_mmap.h>
  51 #elif defined(__powerpc__)
  52 #include <compat/linux/arch/powerpc/linux_mmap.h>
  53 #elif defined(__mips__)
  54 #include <compat/linux/arch/mips/linux_mmap.h>
  55 #elif defined(__arm__)
  56 #include <compat/linux/arch/arm/linux_mmap.h>
  57 #elif defined(__amd64__)
  58 #include <compat/linux/arch/amd64/linux_mmap.h>
  59 /*
  60  * XXX ERH: All below here are guesses.  The header
  61  * XXX ERH: files are correct but the defined(*)
  62  * XXX ERH: probably aren't
  63  *
  64  * XXX ERH: Can probably drop some of these headers: linux
  65  * XXX ERH: is stupid about compat stuff.  It doesn't really
  66  * XXX ERH: use all the defines, but I don't want to go looking
  67  * XXX ERH: through all the kernel sources right now.
  68  */
  69 #elif defined(__sparc__)
  70 #include <compat/linux/arch/sparc/linux_mmap.h>
  71 #else
  72 #error Undefined linux_mmap.h machine type.
  73 #endif
  74
  75 /*
  76  * Ensure the linux_sys_mmap syscall appears to exist:
  77  */
  78 struct linux_sys_mmap_args;
  79 struct linux_sys_mmap_args {
  80         syscallarg(unsigned long) addr;
  81         syscallarg(size_t) len;
  82         syscallarg(int) prot;
  83         syscallarg(int) flags;
  84         syscallarg(int) fd;
  85         syscallarg(linux_off_t) offset;
  86 };
  87
  88 /*
  89  * Same arguments, but different meaning for "offset".
  90  * See linux_misc.c:linux_sys_mmap2().
  91  */
  92 #define linux_sys_mmap2_args linux_sys_mmap_args
  93
  94 #ifdef _KERNEL
  95 __BEGIN_DECLS
  96 int linux_sys_mmap(struct lwp *p, const struct linux_sys_mmap_args *v, register_t *retval);
  97 int linux_sys_mmap2(struct lwp *p, const struct linux_sys_mmap2_args *v, register_t *retval);
  98
  99 __END_DECLS
 100 #endif /* !_KERNEL */
 101
 102 #endif /* !_LINUX_MMAP_H */