diff options
Diffstat (limited to 'arch/frv/kernel/sys_frv.c')
| -rw-r--r-- | arch/frv/kernel/sys_frv.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/frv/kernel/sys_frv.c b/arch/frv/kernel/sys_frv.c new file mode 100644 index 000000000..9c4980825 --- /dev/null +++ b/arch/frv/kernel/sys_frv.c @@ -0,0 +1,44 @@ +/* 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)); +} |