arch/ia64/ia32/ia32_ioctl.c

   1 /*
   2  * IA32 Architecture-specific ioctl shim code
   3  *
   4  * Copyright (C) 2000 VA Linux Co
   5  * Copyright (C) 2000 Don Dugger <n0ano@valinux.com>
   6  * Copyright (C) 2001-2003 Hewlett-Packard Co
   7  *      David Mosberger-Tang <davidm@hpl.hp.com>
   8  */
   9
  10 #include <linux/signal.h>       /* argh, msdos_fs.h isn't self-contained... */
  11 #include <linux/syscalls.h>
  12 #include "ia32priv.h"
  13
  14 #define INCLUDES
  15 #include "compat_ioctl.c"
  16 #include <asm/ioctl32.h>
  17
  18 #define IOCTL_NR(a)     ((a) & ~(_IOC_SIZEMASK << _IOC_SIZESHIFT))
  19
  20 #define DO_IOCTL(fd, cmd, arg) ({                       \
  21         int _ret;                                       \
  22         mm_segment_t _old_fs = get_fs();                \
  23                                                         \
  24         set_fs(KERNEL_DS);                              \
  25         _ret = sys_ioctl(fd, cmd, (unsigned long)arg);  \
  26         set_fs(_old_fs);                                \
  27         _ret;                                           \
  28 })
  29
  30 #define CODE
  31 #include "compat_ioctl.c"
  32
  33 typedef int (* ioctl32_handler_t)(unsigned int, unsigned int, unsigned long, struct file *);
  34
  35 #define COMPATIBLE_IOCTL(cmd)           HANDLE_IOCTL((cmd),sys_ioctl)
  36 #define HANDLE_IOCTL(cmd,handler)       { (cmd), (ioctl32_handler_t)(handler), NULL },
  37 #define IOCTL_TABLE_START \
  38         struct ioctl_trans ioctl_start[] = {
  39 #define IOCTL_TABLE_END \
  40         };
  41
  42 IOCTL_TABLE_START
  43 #define DECLARES
  44 #include "compat_ioctl.c"
  45 #include <linux/compat_ioctl.h>
  46 IOCTL_TABLE_END
  47
  48 int ioctl_table_size = ARRAY_SIZE(ioctl_start);