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 #define COMPAT_UTS_MACHINE      "sparc\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_pid_t;
  16 typedef u16             __compat_uid_t;
  17 typedef u16             __compat_gid_t;
  18 typedef u32             __compat_uid32_t;
  19 typedef u32             __compat_gid32_t;
  20 typedef u16             compat_mode_t;
  21 typedef u32             compat_ino_t;
  22 typedef u16             compat_dev_t;
  23 typedef s32             compat_off_t;
  24 typedef s64             compat_loff_t;
  25 typedef s16             compat_nlink_t;
  26 typedef u16             compat_ipc_pid_t;
  27 typedef s32             compat_daddr_t;
  28 typedef u32             compat_caddr_t;
  29 typedef __kernel_fsid_t compat_fsid_t;
  30 typedef s32             compat_key_t;
  31 typedef s32             compat_timer_t;
  32
  33 typedef s32             compat_int_t;
  34 typedef s32             compat_long_t;
  35 typedef s64             compat_s64;
  36 typedef u32             compat_uint_t;
  37 typedef u32             compat_ulong_t;
  38 typedef u64             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         compat_ino_t    st_ino;
  53         compat_mode_t   st_mode;
  54         compat_nlink_t  st_nlink;
  55         __compat_uid_t  st_uid;
  56         __compat_gid_t  st_gid;
  57         compat_dev_t    st_rdev;
  58         compat_off_t    st_size;
  59         compat_time_t   st_atime;
  60         compat_ulong_t  st_atime_nsec;
  61         compat_time_t   st_mtime;
  62         compat_ulong_t  st_mtime_nsec;
  63         compat_time_t   st_ctime;
  64         compat_ulong_t  st_ctime_nsec;
  65         compat_off_t    st_blksize;
  66         compat_off_t    st_blocks;
  67         u32             __unused4[2];
  68 };
  69
  70 struct compat_stat64 {
  71         unsigned long long      st_dev;
  72
  73         unsigned long long      st_ino;
  74
  75         unsigned int    st_mode;
  76         unsigned int    st_nlink;
  77
  78         unsigned int    st_uid;
  79         unsigned int    st_gid;
  80
  81         unsigned long long      st_rdev;
  82
  83         unsigned char   __pad3[8];
  84
  85         long long       st_size;
  86         unsigned int    st_blksize;
  87
  88         unsigned char   __pad4[8];
  89         unsigned int    st_blocks;
  90
  91         unsigned int    st_atime;
  92         unsigned int    st_atime_nsec;
  93
  94         unsigned int    st_mtime;
  95         unsigned int    st_mtime_nsec;
  96
  97         unsigned int    st_ctime;
  98         unsigned int    st_ctime_nsec;
  99
 100         unsigned int    __unused4;
 101         unsigned int    __unused5;
 102 };
 103
 104 struct compat_flock {
 105         short           l_type;
 106         short           l_whence;
 107         compat_off_t    l_start;
 108         compat_off_t    l_len;
 109         compat_pid_t    l_pid;
 110         short           __unused;
 111 };
 112
 113 #define F_GETLK64       12
 114 #define F_SETLK64       13
 115 #define F_SETLKW64      14
 116
 117 struct compat_flock64 {
 118         short           l_type;
 119         short           l_whence;
 120         compat_loff_t   l_start;
 121         compat_loff_t   l_len;
 122         compat_pid_t    l_pid;
 123         short           __unused;
 124 };
 125
 126 struct compat_statfs {
 127         int             f_type;
 128         int             f_bsize;
 129         int             f_blocks;
 130         int             f_bfree;
 131         int             f_bavail;
 132         int             f_files;
 133         int             f_ffree;
 134         compat_fsid_t   f_fsid;
 135         int             f_namelen;      /* SunOS ignores this field. */
 136         int             f_frsize;
 137         int             f_flags;
 138         int             f_spare[4];
 139 };
 140
 141 #define COMPAT_RLIM_INFINITY 0x7fffffff
 142
 143 typedef u32             compat_old_sigset_t;
 144
 145 #define _COMPAT_NSIG            64
 146 #define _COMPAT_NSIG_BPW        32
 147
 148 typedef u32             compat_sigset_word;
 149
 150 #define COMPAT_OFF_T_MAX        0x7fffffff
 151 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 152
 153 /*
 154  * A pointer passed in from user mode. This should not
 155  * be used for syscall parameters, just declare them
 156  * as pointers because the syscall entry code will have
 157  * appropriately converted them already.
 158  */
 159 typedef u32             compat_uptr_t;
 160
 161 static inline void __user *compat_ptr(compat_uptr_t uptr)
 162 {
 163         return (void __user *)(unsigned long)uptr;
 164 }
 165
 166 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 167 {
 168         return (u32)(unsigned long)uptr;
 169 }
 170
 171 static inline void __user *arch_compat_alloc_user_space(long len)
 172 {
 173         struct pt_regs *regs = current_thread_info()->kregs;
 174         unsigned long usp = regs->u_regs[UREG_I6];
 175
 176         if (!(test_thread_flag(TIF_32BIT)))
 177                 usp += STACK_BIAS;
 178         else
 179                 usp &= 0xffffffffUL;
 180
 181         usp -= len;
 182         usp &= ~0x7UL;
 183
 184         return (void __user *) usp;
 185 }
 186
 187 struct compat_ipc64_perm {
 188         compat_key_t key;
 189         __compat_uid32_t uid;
 190         __compat_gid32_t gid;
 191         __compat_uid32_t cuid;
 192         __compat_gid32_t cgid;
 193         unsigned short __pad1;
 194         compat_mode_t mode;
 195         unsigned short __pad2;
 196         unsigned short seq;
 197         unsigned long __unused1;        /* yes they really are 64bit pads */
 198         unsigned long __unused2;
 199 };
 200
 201 struct compat_semid64_ds {
 202         struct compat_ipc64_perm sem_perm;
 203         unsigned int    __pad1;
 204         compat_time_t   sem_otime;
 205         unsigned int    __pad2;
 206         compat_time_t   sem_ctime;
 207         u32             sem_nsems;
 208         u32             __unused1;
 209         u32             __unused2;
 210 };
 211
 212 struct compat_msqid64_ds {
 213         struct compat_ipc64_perm msg_perm;
 214         unsigned int    __pad1;
 215         compat_time_t   msg_stime;
 216         unsigned int    __pad2;
 217         compat_time_t   msg_rtime;
 218         unsigned int    __pad3;
 219         compat_time_t   msg_ctime;
 220         unsigned int    msg_cbytes;
 221         unsigned int    msg_qnum;
 222         unsigned int    msg_qbytes;
 223         compat_pid_t    msg_lspid;
 224         compat_pid_t    msg_lrpid;
 225         unsigned int    __unused1;
 226         unsigned int    __unused2;
 227 };
 228
 229 struct compat_shmid64_ds {
 230         struct compat_ipc64_perm shm_perm;
 231         unsigned int    __pad1;
 232         compat_time_t   shm_atime;
 233         unsigned int    __pad2;
 234         compat_time_t   shm_dtime;
 235         unsigned int    __pad3;
 236         compat_time_t   shm_ctime;
 237         compat_size_t   shm_segsz;
 238         compat_pid_t    shm_cpid;
 239         compat_pid_t    shm_lpid;
 240         unsigned int    shm_nattch;
 241         unsigned int    __unused1;
 242         unsigned int    __unused2;
 243 };
 244
 245 static inline int is_compat_task(void)
 246 {
 247         return test_thread_flag(TIF_32BIT);
 248 }
 249
 250 #endif /* _ASM_SPARC64_COMPAT_H */