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C/C++ Source or Header  |  2006-08-11  |  3.1 KB  |  153 lines
  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 __compat_uid_t    __compat_uid32_t;
  21. typedef __compat_gid_t    __compat_gid32_t;
  22. typedef u32        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 u32        compat_nlink_t;
  28. typedef s32        compat_ipc_pid_t;
  29. typedef s32        compat_daddr_t;
  30. typedef s32        compat_caddr_t;
  31. typedef struct {
  32.     s32    val[2];
  33. } compat_fsid_t;
  34. typedef s32        compat_timer_t;
  35.  
  36. typedef s32        compat_int_t;
  37. typedef s32        compat_long_t;
  38. typedef u32        compat_uint_t;
  39. typedef u32        compat_ulong_t;
  40.  
  41. struct compat_timespec {
  42.     compat_time_t    tv_sec;
  43.     s32        tv_nsec;
  44. };
  45.  
  46. struct compat_timeval {
  47.     compat_time_t    tv_sec;
  48.     s32        tv_usec;
  49. };
  50.  
  51. struct compat_stat {
  52.     compat_dev_t    st_dev;
  53.     s32        st_pad1[3];
  54.     compat_ino_t    st_ino;
  55.     compat_mode_t    st_mode;
  56.     compat_nlink_t    st_nlink;
  57.     __compat_uid_t    st_uid;
  58.     __compat_gid_t    st_gid;
  59.     compat_dev_t    st_rdev;
  60.     s32        st_pad2[2];
  61.     compat_off_t    st_size;
  62.     s32        st_pad3;
  63.     compat_time_t    st_atime;
  64.     s32        st_atime_nsec;
  65.     compat_time_t    st_mtime;
  66.     s32        st_mtime_nsec;
  67.     compat_time_t    st_ctime;
  68.     s32        st_ctime_nsec;
  69.     s32        st_blksize;
  70.     s32        st_blocks;
  71.     s32        st_pad4[14];
  72. };
  73.  
  74. struct compat_flock {
  75.     short        l_type;
  76.     short        l_whence;
  77.     compat_off_t    l_start;
  78.     compat_off_t    l_len;
  79.     s32        l_sysid;
  80.     compat_pid_t    l_pid;
  81.     short        __unused;
  82.     s32        pad[4];
  83. };
  84.  
  85. #define F_GETLK64    33
  86. #define F_SETLK64    34
  87. #define F_SETLKW64    35
  88.  
  89. struct compat_flock64 {
  90.     short        l_type;
  91.     short        l_whence;
  92.     compat_loff_t    l_start;
  93.     compat_loff_t    l_len;
  94.     compat_pid_t    l_pid;
  95. };
  96.  
  97. struct compat_statfs {
  98.     int        f_type;
  99.     int        f_bsize;
  100.     int        f_frsize;
  101.     int        f_blocks;
  102.     int        f_bfree;
  103.     int        f_files;
  104.     int        f_ffree;
  105.     int        f_bavail;
  106.     compat_fsid_t    f_fsid;
  107.     int        f_namelen;
  108.     int        f_spare[6];
  109. };
  110.  
  111. #define COMPAT_RLIM_INFINITY    0x7fffffffUL
  112.  
  113. typedef u32        compat_old_sigset_t;    /* at least 32 bits */
  114.  
  115. #define _COMPAT_NSIG        128        /* Don't ask !$@#% ...  */
  116. #define _COMPAT_NSIG_BPW    32
  117.  
  118. typedef u32        compat_sigset_word;
  119.  
  120. #define COMPAT_OFF_T_MAX    0x7fffffff
  121. #define COMPAT_LOFF_T_MAX    0x7fffffffffffffffL
  122.  
  123. /*
  124.  * A pointer passed in from user mode. This should not
  125.  * be used for syscall parameters, just declare them
  126.  * as pointers because the syscall entry code will have
  127.  * appropriately comverted them already.
  128.  */
  129. typedef u32        compat_uptr_t;
  130.  
  131. static inline void __user *compat_ptr(compat_uptr_t uptr)
  132. {
  133.     return (void __user *)(long)uptr;
  134. }
  135.  
  136. static inline compat_uptr_t ptr_to_compat(void __user *uptr)
  137. {
  138.     return (u32)(unsigned long)uptr;
  139. }
  140.  
  141. static inline void __user *compat_alloc_user_space(long len)
  142. {
  143.     struct pt_regs *regs = (struct pt_regs *)
  144.         ((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;
  145.  
  146.     return (void __user *) (regs->regs[29] - len);
  147. }
  148. #if defined (__MIPSEL__)
  149. #define __COMPAT_ENDIAN_SWAP__     1
  150. #endif
  151.  
  152. #endif /* _ASM_COMPAT_H */
  153.