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linux_mmap.h revision 1.20 
      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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #ifndef _LINUX_MMAP_H
     40 #define _LINUX_MMAP_H
     41 
     42 #define LINUX_PROT_NONE		0x00
     43 #define LINUX_PROT_READ		0x01
     44 #define LINUX_PROT_WRITE	0x02
     45 #define LINUX_PROT_EXEC		0x04
     46 #define LINUX_PROT_GROWSDOWN	0x01000000
     47 #define LINUX_PROT_GROWSUP	0x02000000
     48 
     49 #define LINUX_MAP_SHARED	0x0001
     50 #define LINUX_MAP_PRIVATE	0x0002
     51 
     52 #if defined(__i386__)
     53 #include <compat/linux/arch/i386/linux_mmap.h>
     54 #elif defined(__m68k__)
     55 #include <compat/linux/arch/m68k/linux_mmap.h>
     56 #elif defined(__alpha__)
     57 #include <compat/linux/arch/alpha/linux_mmap.h>
     58 #elif defined(__powerpc__)
     59 #include <compat/linux/arch/powerpc/linux_mmap.h>
     60 #elif defined(__mips__)
     61 #include <compat/linux/arch/mips/linux_mmap.h>
     62 #elif defined(__arm__)
     63 #include <compat/linux/arch/arm/linux_mmap.h>
     64 #elif defined(__amd64__)
     65 #include <compat/linux/arch/amd64/linux_mmap.h>
     66 /*
     67  * XXX ERH: All below here are guesses.  The header
     68  * XXX ERH: files are correct but the defined(*)
     69  * XXX ERH: probably aren't
     70  *
     71  * XXX ERH: Can probably drop some of these headers: linux
     72  * XXX ERH: is stupid about compat stuff.  It doesn't really
     73  * XXX ERH: use all the defines, but I don't want to go looking
     74  * XXX ERH: through all the kernel sources right now.
     75  */
     76 #elif defined(__sparc__)
     77 #include <compat/linux/arch/sparc/linux_mmap.h>
     78 #else
     79 #error Undefined linux_mmap.h machine type.
     80 #endif
     81 
     82 /*
     83  * Ensure the linux_sys_mmap syscall appears to exist:
     84  */
     85 struct linux_sys_mmap_args;
     86 struct linux_sys_mmap_args {
     87 	syscallarg(unsigned long) addr;
     88 	syscallarg(size_t) len;
     89 	syscallarg(int) prot;
     90 	syscallarg(int) flags;
     91 	syscallarg(int) fd;
     92 	syscallarg(linux_off_t) offset;
     93 };
     94 
     95 /*
     96  * Same arguments, but different meaning for "offset".
     97  * See linux_misc.c:linux_sys_mmap2().
     98  */
     99 #define linux_sys_mmap2_args linux_sys_mmap_args
    100 
    101 #ifdef _KERNEL
    102 __BEGIN_DECLS
    103 int linux_sys_mmap(struct lwp *p, const struct linux_sys_mmap_args *v, register_t *retval);
    104 int linux_sys_mmap2(struct lwp *p, const struct linux_sys_mmap2_args *v, register_t *retval);
    105 
    106 __END_DECLS
    107 #endif /* !_KERNEL */
    108 
    109 #endif /* !_LINUX_MMAP_H */
    110