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compat.h

#ifndef _ASM_IA64_COMPAT_H
#define _ASM_IA64_COMPAT_H
/*
 * Architecture specific compatibility types
 */
#include <linux/types.h>

#define COMPAT_USER_HZ  100

typedef u32       compat_size_t;
typedef s32       compat_ssize_t;
typedef s32       compat_time_t;
typedef s32       compat_clock_t;
typedef s32       compat_key_t;
typedef s32       compat_pid_t;
typedef u16       __compat_uid_t;
typedef u16       __compat_gid_t;
typedef u32       __compat_uid32_t;
typedef u32       __compat_gid32_t;
typedef u16       compat_mode_t;
typedef u32       compat_ino_t;
typedef u16       compat_dev_t;
typedef s32       compat_off_t;
typedef s64       compat_loff_t;
typedef u16       compat_nlink_t;
typedef u16       compat_ipc_pid_t;
typedef s32       compat_daddr_t;
typedef u32       compat_caddr_t;
typedef __kernel_fsid_t compat_fsid_t;
typedef s32       compat_timer_t;

typedef s32       compat_int_t;
typedef s32       compat_long_t;
typedef s64 __attribute__((aligned(4))) compat_s64;
typedef u32       compat_uint_t;
typedef u32       compat_ulong_t;
typedef u64 __attribute__((aligned(4))) compat_u64;

struct compat_timespec {
      compat_time_t     tv_sec;
      s32         tv_nsec;
};

struct compat_timeval {
      compat_time_t     tv_sec;
      s32         tv_usec;
};

struct compat_stat {
      compat_dev_t      st_dev;
      u16         __pad1;
      compat_ino_t      st_ino;
      compat_mode_t     st_mode;
      compat_nlink_t    st_nlink;
      __compat_uid_t    st_uid;
      __compat_gid_t    st_gid;
      compat_dev_t      st_rdev;
      u16         __pad2;
      u32         st_size;
      u32         st_blksize;
      u32         st_blocks;
      u32         st_atime;
      u32         st_atime_nsec;
      u32         st_mtime;
      u32         st_mtime_nsec;
      u32         st_ctime;
      u32         st_ctime_nsec;
      u32         __unused4;
      u32         __unused5;
};

struct compat_flock {
      short       l_type;
      short       l_whence;
      compat_off_t      l_start;
      compat_off_t      l_len;
      compat_pid_t      l_pid;
};

#define F_GETLK64 12
#define F_SETLK64 13
#define F_SETLKW64      14

/*
 * IA32 uses 4 byte alignment for 64 bit quantities,
 * so we need to pack this structure.
 */
struct compat_flock64 {
      short       l_type;
      short       l_whence;
      compat_loff_t     l_start;
      compat_loff_t     l_len;
      compat_pid_t      l_pid;
} __attribute__((packed));

struct compat_statfs {
      int         f_type;
      int         f_bsize;
      int         f_blocks;
      int         f_bfree;
      int         f_bavail;
      int         f_files;
      int         f_ffree;
      compat_fsid_t     f_fsid;
      int         f_namelen;  /* SunOS ignores this field. */
      int         f_frsize;
      int         f_spare[5];
};

#define COMPAT_RLIM_OLD_INFINITY       0x7fffffff
#define COMPAT_RLIM_INFINITY           0xffffffff

typedef u32       compat_old_sigset_t;    /* at least 32 bits */

#define _COMPAT_NSIG          64
#define _COMPAT_NSIG_BPW      32

typedef u32       compat_sigset_word;

#define COMPAT_OFF_T_MAX      0x7fffffff
#define COMPAT_LOFF_T_MAX     0x7fffffffffffffffL

struct compat_ipc64_perm {
      compat_key_t key;
      __compat_uid32_t uid;
      __compat_gid32_t gid;
      __compat_uid32_t cuid;
      __compat_gid32_t cgid;
      unsigned short mode;
      unsigned short __pad1;
      unsigned short seq;
      unsigned short __pad2;
      compat_ulong_t unused1;
      compat_ulong_t unused2;
};

struct compat_semid64_ds {
      struct compat_ipc64_perm sem_perm;
      compat_time_t  sem_otime;
      compat_ulong_t __unused1;
      compat_time_t  sem_ctime;
      compat_ulong_t __unused2;
      compat_ulong_t sem_nsems;
      compat_ulong_t __unused3;
      compat_ulong_t __unused4;
};

struct compat_msqid64_ds {
      struct compat_ipc64_perm msg_perm;
      compat_time_t  msg_stime;
      compat_ulong_t __unused1;
      compat_time_t  msg_rtime;
      compat_ulong_t __unused2;
      compat_time_t  msg_ctime;
      compat_ulong_t __unused3;
      compat_ulong_t msg_cbytes;
      compat_ulong_t msg_qnum;
      compat_ulong_t msg_qbytes;
      compat_pid_t   msg_lspid;
      compat_pid_t   msg_lrpid;
      compat_ulong_t __unused4;
      compat_ulong_t __unused5;
};

struct compat_shmid64_ds {
      struct compat_ipc64_perm shm_perm;
      compat_size_t  shm_segsz;
      compat_time_t  shm_atime;
      compat_ulong_t __unused1;
      compat_time_t  shm_dtime;
      compat_ulong_t __unused2;
      compat_time_t  shm_ctime;
      compat_ulong_t __unused3;
      compat_pid_t   shm_cpid;
      compat_pid_t   shm_lpid;
      compat_ulong_t shm_nattch;
      compat_ulong_t __unused4;
      compat_ulong_t __unused5;
};

/*
 * A pointer passed in from user mode. This should not be used for syscall parameters,
 * just declare them as pointers because the syscall entry code will have appropriately
 * converted them already.
 */
typedef     u32         compat_uptr_t;

static inline void __user *
compat_ptr (compat_uptr_t uptr)
{
      return (void __user *) (unsigned long) uptr;
}

static inline compat_uptr_t
ptr_to_compat(void __user *uptr)
{
      return (u32)(unsigned long)uptr;
}

static __inline__ void __user *
compat_alloc_user_space (long len)
{
      struct pt_regs *regs = task_pt_regs(current);
      return (void __user *) (((regs->r12 & 0xffffffff) & -16) - len);
}

#endif /* _ASM_IA64_COMPAT_H */

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