include/asm-mips/compat.h

   1 #ifndef _ASM_COMPAT_H
   2 #define _ASM_COMPAT_H
   3 /*
   4  * Architecture specific compatibility types
   5  */
   6 #include <linux/types.h>
   7 #include <asm/page.h>
   8
   9 #define COMPAT_USER_HZ  100
  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_suseconds_t;
  16
  17 typedef s32             compat_pid_t;
  18 typedef s32             compat_uid_t;
  19 typedef s32             compat_gid_t;
  20 typedef u32             compat_mode_t;
  21 typedef u32             compat_ino_t;
  22 typedef u32             compat_dev_t;
  23 typedef s32             compat_off_t;
  24 typedef s64             compat_loff_t;
  25 typedef u32             compat_nlink_t;
  26 typedef s32             compat_ipc_pid_t;
  27 typedef s32             compat_daddr_t;
  28 typedef s32             compat_caddr_t;
  29 typedef struct {
  30         s32     val[2];
  31 } compat_fsid_t;
  32
  33 typedef s32             compat_int_t;
  34 typedef s32             compat_long_t;
  35 typedef u32             compat_uint_t;
  36 typedef u32             compat_ulong_t;
  37
  38 struct compat_timespec {
  39         compat_time_t   tv_sec;
  40         s32             tv_nsec;
  41 };
  42
  43 struct compat_timeval {
  44         compat_time_t   tv_sec;
  45         s32             tv_usec;
  46 };
  47
  48 struct compat_stat {
  49         compat_dev_t    st_dev;
  50         s32             st_pad1[3];
  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         s32             st_pad2[2];
  58         compat_off_t    st_size;
  59         s32             st_pad3;
  60         compat_time_t   st_atime;
  61         s32             st_atime_nsec;
  62         compat_time_t   st_mtime;
  63         s32             st_mtime_nsec;
  64         compat_time_t   st_ctime;
  65         s32             st_ctime_nsec;
  66         s32             st_blksize;
  67         s32             st_blocks;
  68         s32             st_pad4[14];
  69 };
  70
  71 struct compat_flock {
  72         short           l_type;
  73         short           l_whence;
  74         compat_off_t    l_start;
  75         compat_off_t    l_len;
  76         s32             l_sysid;
  77         compat_pid_t    l_pid;
  78         short           __unused;
  79         s32             pad[4];
  80 };
  81
  82 #define F_GETLK64       33
  83 #define F_SETLK64       34
  84 #define F_SETLKW64      35
  85
  86 struct compat_flock64 {
  87         short           l_type;
  88         short           l_whence;
  89         compat_loff_t   l_start;
  90         compat_loff_t   l_len;
  91         compat_pid_t    l_pid;
  92 };
  93
  94 struct compat_statfs {
  95         int             f_type;
  96         int             f_bsize;
  97         int             f_frsize;
  98         int             f_blocks;
  99         int             f_bfree;
 100         int             f_files;
 101         int             f_ffree;
 102         int             f_bavail;
 103         compat_fsid_t   f_fsid;
 104         int             f_namelen;
 105         int             f_spare[6];
 106 };
 107
 108 #define COMPAT_RLIM_INFINITY    0x7fffffffUL
 109
 110 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 111
 112 #define _COMPAT_NSIG            128             /* Don't ask !$@#% ...  */
 113 #define _COMPAT_NSIG_BPW        32
 114
 115 typedef u32             compat_sigset_word;
 116
 117 #define COMPAT_OFF_T_MAX        0x7fffffff
 118 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 119
 120 /*
 121  * A pointer passed in from user mode. This should not
 122  * be used for syscall parameters, just declare them
 123  * as pointers because the syscall entry code will have
 124  * appropriately comverted them already.
 125  */
 126 typedef u32             compat_uptr_t;
 127
 128 static inline void *compat_ptr(compat_uptr_t uptr)
 129 {
 130         return (void *)(long)uptr;
 131 }
 132
 133 static inline void *compat_alloc_user_space(long len)
 134 {
 135         struct pt_regs *regs = (struct pt_regs *)
 136                 ((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;
 137
 138         return (void *) (regs->regs[29] - len);
 139 }
 140 #if defined (__MIPSEL__)
 141 #define __COMPAT_ENDIAN_SWAP__  1
 142 #endif
 143
 144 #endif /* _ASM_COMPAT_H */