include/asm-ia64/compat.h

   1 #ifndef _ASM_IA64_COMPAT_H
   2 #define _ASM_IA64_COMPAT_H
   3 /*
   4  * Architecture specific compatibility types
   5  */
   6 #include <linux/types.h>
   7
   8 #define COMPAT_USER_HZ  100
   9
  10 typedef u32             compat_size_t;
  11 typedef s32             compat_ssize_t;
  12 typedef s32             compat_time_t;
  13 typedef s32             compat_clock_t;
  14 typedef s32             compat_pid_t;
  15 typedef u16             compat_uid_t;
  16 typedef u16             compat_gid_t;
  17 typedef u32             compat_uid32_t;
  18 typedef u32             compat_gid32_t;
  19 typedef u16             compat_mode_t;
  20 typedef u32             compat_ino_t;
  21 typedef u16             compat_dev_t;
  22 typedef s32             compat_off_t;
  23 typedef s64             compat_loff_t;
  24 typedef u16             compat_nlink_t;
  25 typedef u16             compat_ipc_pid_t;
  26 typedef s32             compat_daddr_t;
  27 typedef u32             compat_caddr_t;
  28 typedef __kernel_fsid_t compat_fsid_t;
  29
  30 typedef s32             compat_int_t;
  31 typedef s32             compat_long_t;
  32 typedef u32             compat_uint_t;
  33 typedef u32             compat_ulong_t;
  34
  35 struct compat_timespec {
  36         compat_time_t   tv_sec;
  37         s32             tv_nsec;
  38 };
  39
  40 struct compat_timeval {
  41         compat_time_t   tv_sec;
  42         s32             tv_usec;
  43 };
  44
  45 struct compat_stat {
  46         compat_dev_t    st_dev;
  47         u16             __pad1;
  48         compat_ino_t    st_ino;
  49         compat_mode_t   st_mode;
  50         compat_nlink_t  st_nlink;
  51         compat_uid_t    st_uid;
  52         compat_gid_t    st_gid;
  53         compat_dev_t    st_rdev;
  54         u16             __pad2;
  55         u32             st_size;
  56         u32             st_blksize;
  57         u32             st_blocks;
  58         u32             st_atime;
  59         u32             st_atime_nsec;
  60         u32             st_mtime;
  61         u32             st_mtime_nsec;
  62         u32             st_ctime;
  63         u32             st_ctime_nsec;
  64         u32             __unused4;
  65         u32             __unused5;
  66 };
  67
  68 struct compat_flock {
  69         short           l_type;
  70         short           l_whence;
  71         compat_off_t    l_start;
  72         compat_off_t    l_len;
  73         compat_pid_t    l_pid;
  74 };
  75
  76 #define F_GETLK64       12
  77 #define F_SETLK64       13
  78 #define F_SETLKW64      14
  79
  80 /*
  81  * IA32 uses 4 byte alignment for 64 bit quantities,
  82  * so we need to pack this structure.
  83  */
  84 struct compat_flock64 {
  85         short           l_type;
  86         short           l_whence;
  87         compat_loff_t   l_start;
  88         compat_loff_t   l_len;
  89         compat_pid_t    l_pid;
  90 } __attribute__((packed));
  91
  92 struct compat_statfs {
  93         int             f_type;
  94         int             f_bsize;
  95         int             f_blocks;
  96         int             f_bfree;
  97         int             f_bavail;
  98         int             f_files;
  99         int             f_ffree;
 100         compat_fsid_t   f_fsid;
 101         int             f_namelen;      /* SunOS ignores this field. */
 102         int             f_frsize;
 103         int             f_spare[5];
 104 };
 105
 106 #define COMPAT_RLIM_OLD_INFINITY       0x7fffffff
 107 #define COMPAT_RLIM_INFINITY           0xffffffff
 108
 109 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 110
 111 #define _COMPAT_NSIG            64
 112 #define _COMPAT_NSIG_BPW        32
 113
 114 typedef u32             compat_sigset_word;
 115
 116 #define COMPAT_OFF_T_MAX        0x7fffffff
 117 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 118
 119 /*
 120  * A pointer passed in from user mode. This should not be used for syscall parameters,
 121  * just declare them as pointers because the syscall entry code will have appropriately
 122  * comverted them already.
 123  */
 124 typedef u32             compat_uptr_t;
 125
 126 static inline void *
 127 compat_ptr (compat_uptr_t uptr)
 128 {
 129         return (void *) (unsigned long) uptr;
 130 }
 131
 132 static __inline__ void *
 133 compat_alloc_user_space (long len)
 134 {
 135         struct pt_regs *regs = ia64_task_regs(current);
 136         return (void *) ((regs->r12 & -16) - len);
 137 }
 138
 139 #endif /* _ASM_IA64_COMPAT_H */