arch/parisc/include/asm/compat.h

   1 #ifndef _ASM_PARISC_COMPAT_H
   2 #define _ASM_PARISC_COMPAT_H
   3 /*
   4  * Architecture specific compatibility types
   5  */
   6 #include <linux/types.h>
   7 #include <linux/sched.h>
   8 #include <linux/thread_info.h>
   9
  10 #define COMPAT_USER_HZ          100
  11 #define COMPAT_UTS_MACHINE      "parisc\0\0"
  12
  13 typedef u32     compat_size_t;
  14 typedef s32     compat_ssize_t;
  15 typedef s32     compat_time_t;
  16 typedef s32     compat_clock_t;
  17 typedef s32     compat_pid_t;
  18 typedef u32     __compat_uid_t;
  19 typedef u32     __compat_gid_t;
  20 typedef u32     __compat_uid32_t;
  21 typedef u32     __compat_gid32_t;
  22 typedef u16     compat_mode_t;
  23 typedef u32     compat_ino_t;
  24 typedef u32     compat_dev_t;
  25 typedef s32     compat_off_t;
  26 typedef s64     compat_loff_t;
  27 typedef u16     compat_nlink_t;
  28 typedef u16     compat_ipc_pid_t;
  29 typedef s32     compat_daddr_t;
  30 typedef u32     compat_caddr_t;
  31 typedef s32     compat_key_t;
  32 typedef s32     compat_timer_t;
  33
  34 typedef s32     compat_int_t;
  35 typedef s32     compat_long_t;
  36 typedef s64     compat_s64;
  37 typedef u32     compat_uint_t;
  38 typedef u32     compat_ulong_t;
  39 typedef u64     compat_u64;
  40 typedef u32     compat_uptr_t;
  41
  42 struct compat_timespec {
  43         compat_time_t           tv_sec;
  44         s32                     tv_nsec;
  45 };
  46
  47 struct compat_timeval {
  48         compat_time_t           tv_sec;
  49         s32                     tv_usec;
  50 };
  51
  52 struct compat_stat {
  53         compat_dev_t            st_dev; /* dev_t is 32 bits on parisc */
  54         compat_ino_t            st_ino; /* 32 bits */
  55         compat_mode_t           st_mode;        /* 16 bits */
  56         compat_nlink_t          st_nlink;       /* 16 bits */
  57         u16                     st_reserved1;   /* old st_uid */
  58         u16                     st_reserved2;   /* old st_gid */
  59         compat_dev_t            st_rdev;
  60         compat_off_t            st_size;
  61         compat_time_t           st_atime;
  62         u32                     st_atime_nsec;
  63         compat_time_t           st_mtime;
  64         u32                     st_mtime_nsec;
  65         compat_time_t           st_ctime;
  66         u32                     st_ctime_nsec;
  67         s32                     st_blksize;
  68         s32                     st_blocks;
  69         u32                     __unused1;      /* ACL stuff */
  70         compat_dev_t            __unused2;      /* network */
  71         compat_ino_t            __unused3;      /* network */
  72         u32                     __unused4;      /* cnodes */
  73         u16                     __unused5;      /* netsite */
  74         short                   st_fstype;
  75         compat_dev_t            st_realdev;
  76         u16                     st_basemode;
  77         u16                     st_spareshort;
  78         __compat_uid32_t        st_uid;
  79         __compat_gid32_t        st_gid;
  80         u32                     st_spare4[3];
  81 };
  82
  83 struct compat_flock {
  84         short                   l_type;
  85         short                   l_whence;
  86         compat_off_t            l_start;
  87         compat_off_t            l_len;
  88         compat_pid_t            l_pid;
  89 };
  90
  91 struct compat_flock64 {
  92         short                   l_type;
  93         short                   l_whence;
  94         compat_loff_t           l_start;
  95         compat_loff_t           l_len;
  96         compat_pid_t            l_pid;
  97 };
  98
  99 struct compat_statfs {
 100         s32             f_type;
 101         s32             f_bsize;
 102         s32             f_blocks;
 103         s32             f_bfree;
 104         s32             f_bavail;
 105         s32             f_files;
 106         s32             f_ffree;
 107         __kernel_fsid_t f_fsid;
 108         s32             f_namelen;
 109         s32             f_frsize;
 110         s32             f_flags;
 111         s32             f_spare[4];
 112 };
 113
 114 struct compat_sigcontext {
 115         compat_int_t sc_flags;
 116         compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
 117         u64 sc_fr[32];
 118         compat_int_t sc_iasq[2];
 119         compat_int_t sc_iaoq[2];
 120         compat_int_t sc_sar; /* cr11 */
 121 };
 122
 123 #define COMPAT_RLIM_INFINITY 0xffffffff
 124
 125 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 126
 127 #define _COMPAT_NSIG            64
 128 #define _COMPAT_NSIG_BPW        32
 129
 130 typedef u32             compat_sigset_word;
 131
 132 typedef union compat_sigval {
 133         compat_int_t    sival_int;
 134         compat_uptr_t   sival_ptr;
 135 } compat_sigval_t;
 136
 137 typedef struct compat_siginfo {
 138         int si_signo;
 139         int si_errno;
 140         int si_code;
 141
 142         union {
 143                 int _pad[128/sizeof(int) - 3];
 144
 145                 /* kill() */
 146                 struct {
 147                         unsigned int _pid;      /* sender's pid */
 148                         unsigned int _uid;      /* sender's uid */
 149                 } _kill;
 150
 151                 /* POSIX.1b timers */
 152                 struct {
 153                         compat_timer_t _tid;            /* timer id */
 154                         int _overrun;           /* overrun count */
 155                         char _pad[sizeof(unsigned int) - sizeof(int)];
 156                         compat_sigval_t _sigval;        /* same as below */
 157                         int _sys_private;       /* not to be passed to user */
 158                 } _timer;
 159
 160                 /* POSIX.1b signals */
 161                 struct {
 162                         unsigned int _pid;      /* sender's pid */
 163                         unsigned int _uid;      /* sender's uid */
 164                         compat_sigval_t _sigval;
 165                 } _rt;
 166
 167                 /* SIGCHLD */
 168                 struct {
 169                         unsigned int _pid;      /* which child */
 170                         unsigned int _uid;      /* sender's uid */
 171                         int _status;            /* exit code */
 172                         compat_clock_t _utime;
 173                         compat_clock_t _stime;
 174                 } _sigchld;
 175
 176                 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
 177                 struct {
 178                         unsigned int _addr;     /* faulting insn/memory ref. */
 179                 } _sigfault;
 180
 181                 /* SIGPOLL */
 182                 struct {
 183                         int _band;      /* POLL_IN, POLL_OUT, POLL_MSG */
 184                         int _fd;
 185                 } _sigpoll;
 186         } _sifields;
 187 } compat_siginfo_t;
 188
 189 #define COMPAT_OFF_T_MAX        0x7fffffff
 190 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 191
 192 struct compat_ipc64_perm {
 193         compat_key_t key;
 194         __compat_uid_t uid;
 195         __compat_gid_t gid;
 196         __compat_uid_t cuid;
 197         __compat_gid_t cgid;
 198         unsigned short int __pad1;
 199         compat_mode_t mode;
 200         unsigned short int __pad2;
 201         unsigned short int seq;
 202         unsigned int __pad3;
 203         unsigned long __unused1;        /* yes they really are 64bit pads */
 204         unsigned long __unused2;
 205 };
 206
 207 struct compat_semid64_ds {
 208         struct compat_ipc64_perm sem_perm;
 209         unsigned int __unused1;
 210         compat_time_t sem_otime;
 211         unsigned int __unused2;
 212         compat_time_t sem_ctime;
 213         compat_ulong_t sem_nsems;
 214         compat_ulong_t __unused3;
 215         compat_ulong_t __unused4;
 216 };
 217
 218 struct compat_msqid64_ds {
 219         struct compat_ipc64_perm msg_perm;
 220         unsigned int __unused1;
 221         compat_time_t msg_stime;
 222         unsigned int __unused2;
 223         compat_time_t msg_rtime;
 224         unsigned int __unused3;
 225         compat_time_t msg_ctime;
 226         compat_ulong_t msg_cbytes;
 227         compat_ulong_t msg_qnum;
 228         compat_ulong_t msg_qbytes;
 229         compat_pid_t msg_lspid;
 230         compat_pid_t msg_lrpid;
 231         compat_ulong_t __unused4;
 232         compat_ulong_t __unused5;
 233 };
 234
 235 struct compat_shmid64_ds {
 236         struct compat_ipc64_perm shm_perm;
 237         unsigned int __unused1;
 238         compat_time_t shm_atime;
 239         unsigned int __unused2;
 240         compat_time_t shm_dtime;
 241         unsigned int __unused3;
 242         compat_time_t shm_ctime;
 243         unsigned int __unused4;
 244         compat_size_t shm_segsz;
 245         compat_pid_t shm_cpid;
 246         compat_pid_t shm_lpid;
 247         compat_ulong_t shm_nattch;
 248         compat_ulong_t __unused5;
 249         compat_ulong_t __unused6;
 250 };
 251
 252 /*
 253  * A pointer passed in from user mode. This should not
 254  * be used for syscall parameters, just declare them
 255  * as pointers because the syscall entry code will have
 256  * appropriately converted them already.
 257  */
 258
 259 static inline void __user *compat_ptr(compat_uptr_t uptr)
 260 {
 261         return (void __user *)(unsigned long)uptr;
 262 }
 263
 264 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 265 {
 266         return (u32)(unsigned long)uptr;
 267 }
 268
 269 static __inline__ void __user *arch_compat_alloc_user_space(long len)
 270 {
 271         struct pt_regs *regs = &current->thread.regs;
 272         return (void __user *)regs->gr[30];
 273 }
 274
 275 static inline int __is_compat_task(struct task_struct *t)
 276 {
 277         return test_ti_thread_flag(task_thread_info(t), TIF_32BIT);
 278 }
 279
 280 static inline int is_compat_task(void)
 281 {
 282         return __is_compat_task(current);
 283 }
 284
 285 #endif /* _ASM_PARISC_COMPAT_H */