LXR linux/arch/xtensa/kernel/syscall.c

   1/*
   2 * arch/xtensa/kernel/syscall.c
   3 *
   4 * This file is subject to the terms and conditions of the GNU General Public
   5 * License.  See the file "COPYING" in the main directory of this archive
   6 * for more details.
   7 *
   8 * Copyright (C) 2001 - 2005 Tensilica Inc.
   9 * Copyright (C) 2000 Silicon Graphics, Inc.
  10 * Copyright (C) 1995 - 2000 by Ralf Baechle
  11 *
  12 * Joe Taylor <joe@tensilica.com, joetylr@yahoo.com>
  13 * Marc Gauthier <marc@tensilica.com, marc@alumni.uwaterloo.ca>
  14 * Chris Zankel <chris@zankel.net>
  15 * Kevin Chea
  16 *
  17 */
  18#include <asm/uaccess.h>
  19#include <asm/syscall.h>
  20#include <asm/unistd.h>
  21#include <linux/linkage.h>
  22#include <linux/stringify.h>
  23#include <linux/errno.h>
  24#include <linux/syscalls.h>
  25#include <linux/file.h>
  26#include <linux/fs.h>
  27#include <linux/mman.h>
  28#include <linux/shm.h>
  29
  30typedef void (*syscall_t)(void);
  31
  32syscall_t sys_call_table[__NR_syscall_count] /* FIXME __cacheline_aligned */= {
  33        [0 ... __NR_syscall_count - 1] = (syscall_t)&sys_ni_syscall,
  34
  35#undef __SYSCALL
  36#define __SYSCALL(nr,symbol,nargs) [ nr ] = (syscall_t)symbol,
  37#undef _XTENSA_UNISTD_H
  38#undef  __KERNEL_SYSCALLS__
  39#include <asm/unistd.h>
  40};
  41
  42asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg)
  43{
  44        unsigned long ret;
  45        long err;
  46
  47        err = do_shmat(shmid, shmaddr, shmflg, &ret);
  48        if (err)
  49                return err;
  50        return (long)ret;
  51}
  52
  53asmlinkage long xtensa_fadvise64_64(int fd, int advice, unsigned long long offset, unsigned long long len)
  54{
  55        return sys_fadvise64_64(fd, offset, len, advice);
  56}
  57
  58