arch/powerpc/linux_mmap.h

1.2  manu /* $NetBSD: linux_mmap.h,v 1.2 2001/01/19 01:31:25 manu Exp $   */
1.1   erh
1.1   erh /*-
1.2  manu  * Copyright (c) 1998, 2001 The NetBSD Foundation, Inc.
1.1   erh  * All rights reserved.
1.1   erh  *
1.1   erh  * This code is derived from software contributed to The NetBSD Foundation
1.2  manu  * by Eric Haszlakiewicz and Emmanuel Dreyfus.
1.1   erh  *
1.1   erh  * Redistribution and use in source and binary forms, with or without
1.1   erh  * modification, are permitted provided that the following conditions
1.1   erh  * are met:
1.1   erh  * 1. Redistributions of source code must retain the above copyright
1.1   erh  *    notice, this list of conditions and the following disclaimer.
1.1   erh  * 2. Redistributions in binary form must reproduce the above copyright
1.1   erh  *    notice, this list of conditions and the following disclaimer in the
1.1   erh  *    documentation and/or other materials provided with the distribution.
1.1   erh  * 3. All advertising materials mentioning features or use of this software
1.1   erh  *    must display the following acknowledgement:
1.1   erh  *	This product includes software developed by the NetBSD
1.1   erh  *	Foundation, Inc. and its contributors.
1.1   erh  * 4. Neither the name of The NetBSD Foundation nor the names of its
1.1   erh  *    contributors may be used to endorse or promote products derived
1.1   erh  *    from this software without specific prior written permission.
1.1   erh  *
1.1   erh  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
1.1   erh  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
1.1   erh  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1.1   erh  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
1.1   erh  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.1   erh  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.1   erh  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.1   erh  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.1   erh  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.1   erh  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.1   erh  * POSSIBILITY OF SUCH DAMAGE.
1.1   erh  */
1.1   erh
1.2  manu #ifndef _POWERPC_LINUX_MMAP_H
1.2  manu #define _POWERPC_LINUX_MMAP_H
1.1   erh
1.2  manu /*
1.2  manu  * LINUX_PROT_* are defined in common/linux_mmap.h
1.2  manu  * LINUX_MAP_SHARED/PRIVATE are defined in common/linux_mmap.h
1.2  manu  */
1.1   erh
1.2  manu /*
1.2  manu  * From Linux's include/asm-ppc/mman.h
1.2  manu  */
1.1   erh #define LINUX_MAP_FIXED		0x0010
1.1   erh #define LINUX_MAP_ANON		0x0020
1.1   erh
1.1   erh /* Ignored */
1.1   erh #define LINUX_MAP_NORESERVE	0x0040
1.1   erh #define LINUX_MAP_GROWSDOWN	0x0100
1.1   erh #define LINUX_MAP_DENYWRITE	0x0800
1.1   erh #define	LINUX_MAP_EXECUTABLE	0x1000
1.1   erh
1.2  manu /*
1.2  manu  * On the PowerPC, we have a problem with the offset argument. It's 32 bit
1.2  manu  * long on Linux and 64 bit long on NetBSD. Therefore we use a wrapper
1.2  manu  * function linux_sys_powerpc_mmap() to linux_sys_mmap()
1.2  manu  *
1.2  manu  * Linux's off_t is __kernel_off_t (include/linux/types.h) which in turn
1.2  manu  * is a long (include/asm-ppc/posix_types.h)
1.2  manu  */
1.2  manu #define linux_off_t long
1.2  manu
1.2  manu #ifdef _KERNEL
1.2  manu __BEGIN_DECLS
1.2  manu int linux_sys_powerpc_mmap(struct proc *, void *, register_t *);
1.2  manu __END_DECLS
1.2  manu #endif /* !_KERNEL */
1.1   erh
1.2  manu #endif /* !_POWERPC_LINUX_MMAP_H */