include/asm-sparc64/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 u16             compat_mode_t;
  18 typedef u32             compat_ino_t;
  19 typedef u16             compat_dev_t;
  20 typedef s32             compat_off_t;
  21 typedef s64             compat_loff_t;
  22 typedef s16             compat_nlink_t;
  23 typedef u16             compat_ipc_pid_t;
  24 typedef s32             compat_daddr_t;
  25 typedef u32             compat_caddr_t;
  26 typedef __kernel_fsid_t compat_fsid_t;
  27
  28 typedef s32             compat_int_t;
  29 typedef s32             compat_long_t;
  30 typedef u32             compat_uint_t;
  31 typedef u32             compat_ulong_t;
  32
  33 struct compat_timespec {
  34         compat_time_t   tv_sec;
  35         s32             tv_nsec;
  36 };
  37
  38 struct compat_timeval {
  39         compat_time_t   tv_sec;
  40         s32             tv_usec;
  41 };
  42
  43 struct compat_stat {
  44         compat_dev_t    st_dev;
  45         compat_ino_t    st_ino;
  46         compat_mode_t   st_mode;
  47         compat_nlink_t  st_nlink;
  48         compat_uid_t    st_uid;
  49         compat_gid_t    st_gid;
  50         compat_dev_t    st_rdev;
  51         compat_off_t    st_size;
  52         compat_time_t   st_atime;
  53         u32             __unused1;
  54         compat_time_t   st_mtime;
  55         u32             __unused2;
  56         compat_time_t   st_ctime;
  57         u32             __unused3;
  58         compat_off_t    st_blksize;
  59         compat_off_t    st_blocks;
  60         u32             __unused4[2];
  61 };
  62
  63 struct compat_flock {
  64         short           l_type;
  65         short           l_whence;
  66         compat_off_t    l_start;
  67         compat_off_t    l_len;
  68         compat_pid_t    l_pid;
  69         short           __unused;
  70 };
  71
  72 #define F_GETLK64       12
  73 #define F_SETLK64       13
  74 #define F_SETLKW64      14
  75
  76 struct compat_flock64 {
  77         short           l_type;
  78         short           l_whence;
  79         compat_loff_t   l_start;
  80         compat_loff_t   l_len;
  81         compat_pid_t    l_pid;
  82         short           __unused;
  83 };
  84
  85 struct compat_statfs {
  86         int             f_type;
  87         int             f_bsize;
  88         int             f_blocks;
  89         int             f_bfree;
  90         int             f_bavail;
  91         int             f_files;
  92         int             f_ffree;
  93         compat_fsid_t   f_fsid;
  94         int             f_namelen;      /* SunOS ignores this field. */
  95         int             f_frsize;
  96         int             f_spare[5];
  97 };
  98
  99 #define COMPAT_RLIM_INFINITY 0x7fffffff
 100
 101 typedef u32             compat_old_sigset_t;
 102
 103 #define _COMPAT_NSIG            64
 104 #define _COMPAT_NSIG_BPW        32
 105
 106 typedef u32             compat_sigset_word;
 107
 108 #define COMPAT_OFF_T_MAX        0x7fffffff
 109 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 110
 111 /*
 112  * A pointer passed in from user mode. This should not
 113  * be used for syscall parameters, just declare them
 114  * as pointers because the syscall entry code will have
 115  * appropriately comverted them already.
 116  */
 117 typedef u32             compat_uptr_t;
 118
 119 static inline void __user *compat_ptr(compat_uptr_t uptr)
 120 {
 121         return (void __user *)(unsigned long)uptr;
 122 }
 123
 124 static __inline__ void __user *compat_alloc_user_space(long len)
 125 {
 126         struct pt_regs *regs = current_thread_info()->kregs;
 127         unsigned long usp = regs->u_regs[UREG_I6];
 128
 129         if (!(test_thread_flag(TIF_32BIT)))
 130                 usp += STACK_BIAS;
 131
 132         return (void __user *) (usp - len);
 133 }
 134
 135 #endif /* _ASM_SPARC64_COMPAT_H */