arch/sparc/include/asm/compat.h

   1 #ifndef _ASM_SPARC64_COMPAT_H
   2 #define _ASM_SPARC64_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 s16             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 typedef s32             compat_key_t;
  30 typedef s32             compat_timer_t;
  31
  32 typedef s32             compat_int_t;
  33 typedef s32             compat_long_t;
  34 typedef s64             compat_s64;
  35 typedef u32             compat_uint_t;
  36 typedef u32             compat_ulong_t;
  37 typedef u64             compat_u64;
  38
  39 struct compat_timespec {
  40         compat_time_t   tv_sec;
  41         s32             tv_nsec;
  42 };
  43
  44 struct compat_timeval {
  45         compat_time_t   tv_sec;
  46         s32             tv_usec;
  47 };
  48
  49 struct compat_stat {
  50         compat_dev_t    st_dev;
  51         compat_ino_t    st_ino;
  52         compat_mode_t   st_mode;
  53         compat_nlink_t  st_nlink;
  54         __compat_uid_t  st_uid;
  55         __compat_gid_t  st_gid;
  56         compat_dev_t    st_rdev;
  57         compat_off_t    st_size;
  58         compat_time_t   st_atime;
  59         compat_ulong_t  st_atime_nsec;
  60         compat_time_t   st_mtime;
  61         compat_ulong_t  st_mtime_nsec;
  62         compat_time_t   st_ctime;
  63         compat_ulong_t  st_ctime_nsec;
  64         compat_off_t    st_blksize;
  65         compat_off_t    st_blocks;
  66         u32             __unused4[2];
  67 };
  68
  69 struct compat_stat64 {
  70         unsigned long long      st_dev;
  71
  72         unsigned long long      st_ino;
  73
  74         unsigned int    st_mode;
  75         unsigned int    st_nlink;
  76
  77         unsigned int    st_uid;
  78         unsigned int    st_gid;
  79
  80         unsigned long long      st_rdev;
  81
  82         unsigned char   __pad3[8];
  83
  84         long long       st_size;
  85         unsigned int    st_blksize;
  86
  87         unsigned char   __pad4[8];
  88         unsigned int    st_blocks;
  89
  90         unsigned int    st_atime;
  91         unsigned int    st_atime_nsec;
  92
  93         unsigned int    st_mtime;
  94         unsigned int    st_mtime_nsec;
  95
  96         unsigned int    st_ctime;
  97         unsigned int    st_ctime_nsec;
  98
  99         unsigned int    __unused4;
 100         unsigned int    __unused5;
 101 };
 102
 103 struct compat_flock {
 104         short           l_type;
 105         short           l_whence;
 106         compat_off_t    l_start;
 107         compat_off_t    l_len;
 108         compat_pid_t    l_pid;
 109         short           __unused;
 110 };
 111
 112 #define F_GETLK64       12
 113 #define F_SETLK64       13
 114 #define F_SETLKW64      14
 115
 116 struct compat_flock64 {
 117         short           l_type;
 118         short           l_whence;
 119         compat_loff_t   l_start;
 120         compat_loff_t   l_len;
 121         compat_pid_t    l_pid;
 122         short           __unused;
 123 };
 124
 125 struct compat_statfs {
 126         int             f_type;
 127         int             f_bsize;
 128         int             f_blocks;
 129         int             f_bfree;
 130         int             f_bavail;
 131         int             f_files;
 132         int             f_ffree;
 133         compat_fsid_t   f_fsid;
 134         int             f_namelen;      /* SunOS ignores this field. */
 135         int             f_frsize;
 136         int             f_spare[5];
 137 };
 138
 139 #define COMPAT_RLIM_INFINITY 0x7fffffff
 140
 141 typedef u32             compat_old_sigset_t;
 142
 143 #define _COMPAT_NSIG            64
 144 #define _COMPAT_NSIG_BPW        32
 145
 146 typedef u32             compat_sigset_word;
 147
 148 #define COMPAT_OFF_T_MAX        0x7fffffff
 149 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 150
 151 /*
 152  * A pointer passed in from user mode. This should not
 153  * be used for syscall parameters, just declare them
 154  * as pointers because the syscall entry code will have
 155  * appropriately converted them already.
 156  */
 157 typedef u32             compat_uptr_t;
 158
 159 static inline void __user *compat_ptr(compat_uptr_t uptr)
 160 {
 161         return (void __user *)(unsigned long)uptr;
 162 }
 163
 164 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 165 {
 166         return (u32)(unsigned long)uptr;
 167 }
 168
 169 static inline void __user *compat_alloc_user_space(long len)
 170 {
 171         struct pt_regs *regs = current_thread_info()->kregs;
 172         unsigned long usp = regs->u_regs[UREG_I6];
 173
 174         if (!(test_thread_flag(TIF_32BIT)))
 175                 usp += STACK_BIAS;
 176         else
 177                 usp &= 0xffffffffUL;
 178
 179         usp -= len;
 180         usp &= ~0x7UL;
 181
 182         return (void __user *) usp;
 183 }
 184
 185 struct compat_ipc64_perm {
 186         compat_key_t key;
 187         __compat_uid32_t uid;
 188         __compat_gid32_t gid;
 189         __compat_uid32_t cuid;
 190         __compat_gid32_t cgid;
 191         unsigned short __pad1;
 192         compat_mode_t mode;
 193         unsigned short __pad2;
 194         unsigned short seq;
 195         unsigned long __unused1;        /* yes they really are 64bit pads */
 196         unsigned long __unused2;
 197 };
 198
 199 struct compat_semid64_ds {
 200         struct compat_ipc64_perm sem_perm;
 201         unsigned int    __pad1;
 202         compat_time_t   sem_otime;
 203         unsigned int    __pad2;
 204         compat_time_t   sem_ctime;
 205         u32             sem_nsems;
 206         u32             __unused1;
 207         u32             __unused2;
 208 };
 209
 210 struct compat_msqid64_ds {
 211         struct compat_ipc64_perm msg_perm;
 212         unsigned int    __pad1;
 213         compat_time_t   msg_stime;
 214         unsigned int    __pad2;
 215         compat_time_t   msg_rtime;
 216         unsigned int    __pad3;
 217         compat_time_t   msg_ctime;
 218         unsigned int    msg_cbytes;
 219         unsigned int    msg_qnum;
 220         unsigned int    msg_qbytes;
 221         compat_pid_t    msg_lspid;
 222         compat_pid_t    msg_lrpid;
 223         unsigned int    __unused1;
 224         unsigned int    __unused2;
 225 };
 226
 227 struct compat_shmid64_ds {
 228         struct compat_ipc64_perm shm_perm;
 229         unsigned int    __pad1;
 230         compat_time_t   shm_atime;
 231         unsigned int    __pad2;
 232         compat_time_t   shm_dtime;
 233         unsigned int    __pad3;
 234         compat_time_t   shm_ctime;
 235         compat_size_t   shm_segsz;
 236         compat_pid_t    shm_cpid;
 237         compat_pid_t    shm_lpid;
 238         unsigned int    shm_nattch;
 239         unsigned int    __unused1;
 240         unsigned int    __unused2;
 241 };
 242
 243 static inline int is_compat_task(void)
 244 {
 245         return test_thread_flag(TIF_32BIT);
 246 }
 247
 248 #endif /* _ASM_SPARC64_COMPAT_H */