arch/ia64/include/asm/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 #define COMPAT_UTS_MACHINE      "i686\0\0\0"
  10
  11 typedef u32             compat_size_t;
  12 typedef s32             compat_ssize_t;
  13 typedef s32             compat_time_t;
  14 typedef s32             compat_clock_t;
  15 typedef s32             compat_key_t;
  16 typedef s32             compat_pid_t;
  17 typedef u16             __compat_uid_t;
  18 typedef u16             __compat_gid_t;
  19 typedef u32             __compat_uid32_t;
  20 typedef u32             __compat_gid32_t;
  21 typedef u16             compat_mode_t;
  22 typedef u32             compat_ino_t;
  23 typedef u16             compat_dev_t;
  24 typedef s32             compat_off_t;
  25 typedef s64             compat_loff_t;
  26 typedef u16             compat_nlink_t;
  27 typedef u16             compat_ipc_pid_t;
  28 typedef s32             compat_daddr_t;
  29 typedef u32             compat_caddr_t;
  30 typedef __kernel_fsid_t compat_fsid_t;
  31 typedef s32             compat_timer_t;
  32
  33 typedef s32             compat_int_t;
  34 typedef s32             compat_long_t;
  35 typedef s64 __attribute__((aligned(4))) compat_s64;
  36 typedef u32             compat_uint_t;
  37 typedef u32             compat_ulong_t;
  38 typedef u64 __attribute__((aligned(4))) compat_u64;
  39
  40 struct compat_timespec {
  41         compat_time_t   tv_sec;
  42         s32             tv_nsec;
  43 };
  44
  45 struct compat_timeval {
  46         compat_time_t   tv_sec;
  47         s32             tv_usec;
  48 };
  49
  50 struct compat_stat {
  51         compat_dev_t    st_dev;
  52         u16             __pad1;
  53         compat_ino_t    st_ino;
  54         compat_mode_t   st_mode;
  55         compat_nlink_t  st_nlink;
  56         __compat_uid_t  st_uid;
  57         __compat_gid_t  st_gid;
  58         compat_dev_t    st_rdev;
  59         u16             __pad2;
  60         u32             st_size;
  61         u32             st_blksize;
  62         u32             st_blocks;
  63         u32             st_atime;
  64         u32             st_atime_nsec;
  65         u32             st_mtime;
  66         u32             st_mtime_nsec;
  67         u32             st_ctime;
  68         u32             st_ctime_nsec;
  69         u32             __unused4;
  70         u32             __unused5;
  71 };
  72
  73 struct compat_flock {
  74         short           l_type;
  75         short           l_whence;
  76         compat_off_t    l_start;
  77         compat_off_t    l_len;
  78         compat_pid_t    l_pid;
  79 };
  80
  81 #define F_GETLK64       12
  82 #define F_SETLK64       13
  83 #define F_SETLKW64      14
  84
  85 /*
  86  * IA32 uses 4 byte alignment for 64 bit quantities,
  87  * so we need to pack this structure.
  88  */
  89 struct compat_flock64 {
  90         short           l_type;
  91         short           l_whence;
  92         compat_loff_t   l_start;
  93         compat_loff_t   l_len;
  94         compat_pid_t    l_pid;
  95 } __attribute__((packed));
  96
  97 struct compat_statfs {
  98         int             f_type;
  99         int             f_bsize;
 100         int             f_blocks;
 101         int             f_bfree;
 102         int             f_bavail;
 103         int             f_files;
 104         int             f_ffree;
 105         compat_fsid_t   f_fsid;
 106         int             f_namelen;      /* SunOS ignores this field. */
 107         int             f_frsize;
 108         int             f_spare[5];
 109 };
 110
 111 #define COMPAT_RLIM_OLD_INFINITY       0x7fffffff
 112 #define COMPAT_RLIM_INFINITY           0xffffffff
 113
 114 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 115
 116 #define _COMPAT_NSIG            64
 117 #define _COMPAT_NSIG_BPW        32
 118
 119 typedef u32             compat_sigset_word;
 120
 121 #define COMPAT_OFF_T_MAX        0x7fffffff
 122 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 123
 124 struct compat_ipc64_perm {
 125         compat_key_t key;
 126         __compat_uid32_t uid;
 127         __compat_gid32_t gid;
 128         __compat_uid32_t cuid;
 129         __compat_gid32_t cgid;
 130         unsigned short mode;
 131         unsigned short __pad1;
 132         unsigned short seq;
 133         unsigned short __pad2;
 134         compat_ulong_t unused1;
 135         compat_ulong_t unused2;
 136 };
 137
 138 struct compat_semid64_ds {
 139         struct compat_ipc64_perm sem_perm;
 140         compat_time_t  sem_otime;
 141         compat_ulong_t __unused1;
 142         compat_time_t  sem_ctime;
 143         compat_ulong_t __unused2;
 144         compat_ulong_t sem_nsems;
 145         compat_ulong_t __unused3;
 146         compat_ulong_t __unused4;
 147 };
 148
 149 struct compat_msqid64_ds {
 150         struct compat_ipc64_perm msg_perm;
 151         compat_time_t  msg_stime;
 152         compat_ulong_t __unused1;
 153         compat_time_t  msg_rtime;
 154         compat_ulong_t __unused2;
 155         compat_time_t  msg_ctime;
 156         compat_ulong_t __unused3;
 157         compat_ulong_t msg_cbytes;
 158         compat_ulong_t msg_qnum;
 159         compat_ulong_t msg_qbytes;
 160         compat_pid_t   msg_lspid;
 161         compat_pid_t   msg_lrpid;
 162         compat_ulong_t __unused4;
 163         compat_ulong_t __unused5;
 164 };
 165
 166 struct compat_shmid64_ds {
 167         struct compat_ipc64_perm shm_perm;
 168         compat_size_t  shm_segsz;
 169         compat_time_t  shm_atime;
 170         compat_ulong_t __unused1;
 171         compat_time_t  shm_dtime;
 172         compat_ulong_t __unused2;
 173         compat_time_t  shm_ctime;
 174         compat_ulong_t __unused3;
 175         compat_pid_t   shm_cpid;
 176         compat_pid_t   shm_lpid;
 177         compat_ulong_t shm_nattch;
 178         compat_ulong_t __unused4;
 179         compat_ulong_t __unused5;
 180 };
 181
 182 /*
 183  * A pointer passed in from user mode. This should not be used for syscall parameters,
 184  * just declare them as pointers because the syscall entry code will have appropriately
 185  * converted them already.
 186  */
 187 typedef u32             compat_uptr_t;
 188
 189 static inline void __user *
 190 compat_ptr (compat_uptr_t uptr)
 191 {
 192         return (void __user *) (unsigned long) uptr;
 193 }
 194
 195 static inline compat_uptr_t
 196 ptr_to_compat(void __user *uptr)
 197 {
 198         return (u32)(unsigned long)uptr;
 199 }
 200
 201 static __inline__ void __user *
 202 arch_compat_alloc_user_space (long len)
 203 {
 204         struct pt_regs *regs = task_pt_regs(current);
 205         return (void __user *) (((regs->r12 & 0xffffffff) & -16) - len);
 206 }
 207
 208 #endif /* _ASM_IA64_COMPAT_H */