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
sys_mmap2(unsigned long addr,unsigned long len,unsigned long prot,unsigned long flags,unsigned long fd,unsigned long pgoff)30 asmlinkage 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