44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/* sys_frv.c: FRV arch-specific syscall wrappers
|
|
*
|
|
* Copyright (C) 2003-5 Red Hat, Inc. All Rights Reserved.
|
|
* Written by David Howells (dhowells@redhat.com)
|
|
* - Derived from arch/m68k/kernel/sys_m68k.c
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#include <linux/errno.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/smp.h>
|
|
#include <linux/sem.h>
|
|
#include <linux/msg.h>
|
|
#include <linux/shm.h>
|
|
#include <linux/stat.h>
|
|
#include <linux/mman.h>
|
|
#include <linux/file.h>
|
|
#include <linux/syscalls.h>
|
|
#include <linux/ipc.h>
|
|
|
|
#include <asm/setup.h>
|
|
#include <asm/uaccess.h>
|
|
|
|
asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
|
|
unsigned long prot, unsigned long flags,
|
|
unsigned long fd, unsigned long pgoff)
|
|
{
|
|
/* As with sparc32, make sure the shift for mmap2 is constant
|
|
(12), no matter what PAGE_SIZE we have.... */
|
|
|
|
/* But unlike sparc32, don't just silently break if we're
|
|
trying to map something we can't */
|
|
if (pgoff & ((1 << (PAGE_SHIFT - 12)) - 1))
|
|
return -EINVAL;
|
|
|
|
return sys_mmap_pgoff(addr, len, prot, flags, fd,
|
|
pgoff >> (PAGE_SHIFT - 12));
|
|
}
|