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linux_mmap.h revision 1.2 
      1 /* $NetBSD: linux_mmap.h,v 1.2 2001/01/19 01:31:25 manu Exp $   */
      2 
      3 /*-
      4  * Copyright (c) 1998, 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Eric Haszlakiewicz and Emmanuel Dreyfus.
      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 _POWERPC_LINUX_MMAP_H
     40 #define _POWERPC_LINUX_MMAP_H
     41 
     42 /*
     43  * LINUX_PROT_* are defined in common/linux_mmap.h
     44  * LINUX_MAP_SHARED/PRIVATE are defined in common/linux_mmap.h
     45  */
     46 
     47 /*
     48  * From Linux's include/asm-ppc/mman.h
     49  */
     50 #define LINUX_MAP_FIXED		0x0010
     51 #define LINUX_MAP_ANON		0x0020
     52 
     53 /* Ignored */
     54 #define LINUX_MAP_NORESERVE	0x0040
     55 #define LINUX_MAP_GROWSDOWN	0x0100
     56 #define LINUX_MAP_DENYWRITE	0x0800
     57 #define	LINUX_MAP_EXECUTABLE	0x1000
     58 
     59 /*
     60  * On the PowerPC, we have a problem with the offset argument. It's 32 bit
     61  * long on Linux and 64 bit long on NetBSD. Therefore we use a wrapper
     62  * function linux_sys_powerpc_mmap() to linux_sys_mmap()
     63  *
     64  * Linux's off_t is __kernel_off_t (include/linux/types.h) which in turn
     65  * is a long (include/asm-ppc/posix_types.h)
     66  */
     67 #define linux_off_t long
     68 
     69 #ifdef _KERNEL
     70 __BEGIN_DECLS
     71 int linux_sys_powerpc_mmap(struct proc *, void *, register_t *);
     72 __END_DECLS
     73 #endif /* !_KERNEL */
     74 
     75 #endif /* !_POWERPC_LINUX_MMAP_H */
     76