1 /* sys_frv.c: FRV arch-specific syscall wrappers
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
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.
13 #include <linux/errno.h>
14 #include <linux/sched.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>
27 #include <asm/setup.h>
28 #include <asm/uaccess.h>
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)
34 /* As with sparc32, make sure the shift for mmap2 is constant
35 (12), no matter what PAGE_SIZE we have.... */
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))
42 return sys_mmap_pgoff(addr, len, prot, flags, fd,
43 pgoff >> (PAGE_SHIFT - 12));
47 * sys_ipc() is the de-multiplexer for the SysV IPC calls..
49 * This is really horribly ugly.
51 asmlinkage long sys_ipc(unsigned long call,
60 version = call >> 16; /* hack for backward compatibility */
65 return sys_semtimedop(first, (struct sembuf __user *)ptr, second, NULL);
67 return sys_semtimedop(first, (struct sembuf __user *)ptr, second,
68 (const struct timespec __user *)fifth);
71 return sys_semget (first, second, third);
76 if (get_user(fourth.__pad, (void * __user *) ptr))
78 return sys_semctl (first, second, third, fourth);
82 return sys_msgsnd (first, (struct msgbuf __user *) ptr,
87 struct ipc_kludge tmp;
91 if (copy_from_user(&tmp,
92 (struct ipc_kludge __user *) ptr,
95 return sys_msgrcv (first, tmp.msgp, second,
99 return sys_msgrcv (first,
100 (struct msgbuf __user *) ptr,
101 second, fifth, third);
104 return sys_msgget ((key_t) first, second);
106 return sys_msgctl (first, second, (struct msqid_ds __user *) ptr);
112 ret = do_shmat (first, (char __user *) ptr, second, &raddr);
115 return put_user (raddr, (ulong __user *) third);
117 case 1: /* iBCS2 emulator entry point */
118 if (!segment_eq(get_fs(), get_ds()))
120 /* The "(ulong *) third" is valid _only_ because of the kernel segment thing */
121 return do_shmat (first, (char __user *) ptr, second, (ulong *) third);
124 return sys_shmdt ((char __user *)ptr);
126 return sys_shmget (first, second, third);
128 return sys_shmctl (first, second,
129 (struct shmid_ds __user *) ptr);