1/* sys_frv.c: FRV arch-specific syscall wrappers
2 *
3 * Copyright (C) 2003-5 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 * - Derived from arch/m68k/kernel/sys_m68k.c
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
11 */
12
13#include <linux/errno.h>
14#include <linux/sched.h>
15#include <linux/mm.h>
16#include <linux/fs.h>
17#include <linux/smp.h>
18#include <linux/sem.h>
19#include <linux/msg.h>
20#include <linux/shm.h>
21#include <linux/stat.h>
22#include <linux/mman.h>
23#include <linux/file.h>
24#include <linux/syscalls.h>
25#include <linux/ipc.h>
26
27#include <asm/setup.h>
28#include <asm/uaccess.h>
29
30asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
31			  unsigned long prot, unsigned long flags,
32			  unsigned long fd, unsigned long pgoff)
33{
34	/* As with sparc32, make sure the shift for mmap2 is constant
35	   (12), no matter what PAGE_SIZE we have.... */
36
37	/* But unlike sparc32, don't just silently break if we're
38	   trying to map something we can't */
39	if (pgoff & ((1 << (PAGE_SHIFT - 12)) - 1))
40		return -EINVAL;
41
42	return sys_mmap_pgoff(addr, len, prot, flags, fd,
43			      pgoff >> (PAGE_SHIFT - 12));
44}
45