1 /* $Id: sys_cris.c,v 1.6 2004/03/11 11:38:40 starvik Exp $
3 * linux/arch/cris/kernel/sys_cris.c
5 * This file contains various random system calls that
6 * have a non-standard calling sequence on some platforms.
7 * Since we don't have to do any backwards compatibility, our
8 * versions are done in the most "normal" way possible.
12 #include <linux/errno.h>
13 #include <linux/sched.h>
14 #include <linux/syscalls.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/ipc.h>
26 #include <asm/uaccess.h>
27 #include <asm/segment.h>
29 asmlinkage unsigned long old_mmap(unsigned long __user *args)
31 unsigned long buffer[6];
34 if (copy_from_user(&buffer, args, sizeof(buffer)))
38 if (buffer[5] & ~PAGE_MASK) /* verify that offset is on page boundary */
41 err = sys_mmap_pgoff(buffer[0], buffer[1], buffer[2], buffer[3],
42 buffer[4], buffer[5] >> PAGE_SHIFT);
48 sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
49 unsigned long flags, unsigned long fd, unsigned long pgoff)
51 /* bug(?): 8Kb pages here */
52 return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
56 * sys_ipc() is the de-multiplexer for the SysV IPC calls..
58 * This is really horribly ugly. (same as arch/i386)
61 asmlinkage int sys_ipc (uint call, int first, int second,
62 int third, void __user *ptr, long fifth)
66 version = call >> 16; /* hack for backward compatibility */
71 return sys_semtimedop (first, (struct sembuf __user *)ptr, second, NULL);
73 return sys_semtimedop(first, (struct sembuf __user *)ptr, second,
74 (const struct timespec __user *)fifth);
77 return sys_semget (first, second, third);
82 if (get_user(fourth.__pad, (void * __user *) ptr))
84 return sys_semctl (first, second, third, fourth);
88 return sys_msgsnd (first, (struct msgbuf __user *) ptr,
93 struct ipc_kludge tmp;
97 if (copy_from_user(&tmp,
98 (struct ipc_kludge __user *) ptr,
101 return sys_msgrcv (first, tmp.msgp, second,
105 return sys_msgrcv (first,
106 (struct msgbuf __user *) ptr,
107 second, fifth, third);
110 return sys_msgget ((key_t) first, second);
112 return sys_msgctl (first, second, (struct msqid_ds __user *) ptr);
116 ret = do_shmat (first, (char __user *) ptr, second, &raddr);
119 return put_user (raddr, (ulong __user *) third);
122 return sys_shmdt ((char __user *)ptr);
124 return sys_shmget (first, second, third);
126 return sys_shmctl (first, second,
127 (struct shmid_ds __user *) ptr);