#ifndef _LINUX_COMPAT_H

#define _LINUX_COMPAT_H

/*

 * These are the type definitions for the architecture specific

 * syscall compatibility layer.

 */

#ifdef CONFIG_COMPAT

#include <linux/stat.h>

#include <linux/param.h>	/* for HZ */

#include <linux/sem.h>

#include <asm/compat.h>

#include <asm/siginfo.h>

#include <asm/signal.h>

#define compat_jiffies_to_clock_t(x)	\

		(((unsigned long)(x) * COMPAT_USER_HZ) / HZ)

typedef __compat_uid32_t	compat_uid_t;

typedef __compat_gid32_t	compat_gid_t;

struct rusage;

struct compat_itimerspec { 

	struct compat_timespec it_interval;

	struct compat_timespec it_value;

};

struct compat_utimbuf {

	compat_time_t		actime;

	compat_time_t		modtime;

};

struct compat_itimerval {

	struct compat_timeval	it_interval;

	struct compat_timeval	it_value;

};

struct compat_tms {

	compat_clock_t		tms_utime;

	compat_clock_t		tms_stime;

	compat_clock_t		tms_cutime;

	compat_clock_t		tms_cstime;

};

struct compat_timex {

	compat_uint_t modes;

	compat_long_t offset;

	compat_long_t freq;

	compat_long_t maxerror;

	compat_long_t esterror;

	compat_int_t status;

	compat_long_t constant;

	compat_long_t precision;

	compat_long_t tolerance;

	struct compat_timeval time;

	compat_long_t tick;

	compat_long_t ppsfreq;

	compat_long_t jitter;

	compat_int_t shift;

	compat_long_t stabil;

	compat_long_t jitcnt;

	compat_long_t calcnt;

	compat_long_t errcnt;

	compat_long_t stbcnt;

	compat_int_t tai;

	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;

	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;

	compat_int_t :32; compat_int_t :32; compat_int_t :32;

};

#define _COMPAT_NSIG_WORDS	(_COMPAT_NSIG / _COMPAT_NSIG_BPW)

typedef struct {

	compat_sigset_word	sig[_COMPAT_NSIG_WORDS];

} compat_sigset_t;

extern int get_compat_timespec(struct timespec *, const struct compat_timespec __user *);

extern int put_compat_timespec(const struct timespec *, struct compat_timespec __user *);

struct compat_iovec {

	compat_uptr_t	iov_base;

	compat_size_t	iov_len;

};

struct compat_rlimit {

	compat_ulong_t	rlim_cur;

	compat_ulong_t	rlim_max;

};

struct compat_rusage {

	struct compat_timeval ru_utime;

	struct compat_timeval ru_stime;

	compat_long_t	ru_maxrss;

	compat_long_t	ru_ixrss;

	compat_long_t	ru_idrss;

	compat_long_t	ru_isrss;

	compat_long_t	ru_minflt;

	compat_long_t	ru_majflt;

	compat_long_t	ru_nswap;

	compat_long_t	ru_inblock;

	compat_long_t	ru_oublock;

	compat_long_t	ru_msgsnd;

	compat_long_t	ru_msgrcv;

	compat_long_t	ru_nsignals;

	compat_long_t	ru_nvcsw;

	compat_long_t	ru_nivcsw;

};

extern int put_compat_rusage(const struct rusage *, struct compat_rusage __user *);

struct compat_siginfo;

extern asmlinkage long compat_sys_waitid(int, compat_pid_t,

		struct compat_siginfo __user *, int,

		struct compat_rusage __user *);

struct compat_dirent {

	u32		d_ino;

	compat_off_t	d_off;

	u16		d_reclen;

	char		d_name[256];

};

typedef union compat_sigval {

	compat_int_t	sival_int;

	compat_uptr_t	sival_ptr;

} compat_sigval_t;

#define COMPAT_SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE/sizeof(int)) - 3)

typedef struct compat_sigevent {

	compat_sigval_t sigev_value;

	compat_int_t sigev_signo;

	compat_int_t sigev_notify;

	union {

		compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];

		compat_int_t _tid;

		struct {

			compat_uptr_t _function;

			compat_uptr_t _attribute;

		} _sigev_thread;

	} _sigev_un;

} compat_sigevent_t;

struct compat_robust_list {

	compat_uptr_t			next;

};

struct compat_robust_list_head {

	struct compat_robust_list	list;

	compat_long_t			futex_offset;

	compat_uptr_t			list_op_pending;

};

extern void compat_exit_robust_list(struct task_struct *curr);

asmlinkage long

compat_sys_set_robust_list(struct compat_robust_list_head __user *head,

			   compat_size_t len);

asmlinkage long

compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,

			   compat_size_t __user *len_ptr);

long compat_sys_semctl(int first, int second, int third, void __user *uptr);

long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);

long compat_sys_msgrcv(int first, int second, int msgtyp, int third,

		int version, void __user *uptr);

long compat_sys_msgctl(int first, int second, void __user *uptr);

long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,

		void __user *uptr);

long compat_sys_shmctl(int first, int second, void __user *uptr);

long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,

		unsigned nsems, const struct compat_timespec __user *timeout);

asmlinkage long compat_sys_keyctl(u32 option,

			      u32 arg2, u32 arg3, u32 arg4, u32 arg5);

asmlinkage ssize_t compat_sys_readv(unsigned long fd,

		const struct compat_iovec __user *vec, unsigned long vlen);

asmlinkage ssize_t compat_sys_writev(unsigned long fd,

		const struct compat_iovec __user *vec, unsigned long vlen);

int compat_do_execve(char * filename, compat_uptr_t __user *argv,

	        compat_uptr_t __user *envp, struct pt_regs * regs);

asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,

		compat_ulong_t __user *outp, compat_ulong_t __user *exp,

		struct compat_timeval __user *tvp);

asmlinkage long compat_sys_wait4(compat_pid_t pid,

				 compat_uint_t __user *stat_addr, int options,

				 struct compat_rusage __user *ru);

#define BITS_PER_COMPAT_LONG    (8*sizeof(compat_long_t))

#define BITS_TO_COMPAT_LONGS(bits) \

	(((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)

long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,

		       unsigned long bitmap_size);

long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,

		       unsigned long bitmap_size);

int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);

int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);

int get_compat_sigevent(struct sigevent *event,

		const struct compat_sigevent __user *u_event);

static inline int compat_timeval_compare(struct compat_timeval *lhs,

					struct compat_timeval *rhs)

{

	if (lhs->tv_sec < rhs->tv_sec)

		return -1;

	if (lhs->tv_sec > rhs->tv_sec)

		return 1;

	return lhs->tv_usec - rhs->tv_usec;

}

static inline int compat_timespec_compare(struct compat_timespec *lhs,

					struct compat_timespec *rhs)

{

	if (lhs->tv_sec < rhs->tv_sec)

		return -1;

	if (lhs->tv_sec > rhs->tv_sec)

		return 1;

	return lhs->tv_nsec - rhs->tv_nsec;

}

extern int get_compat_itimerspec(struct itimerspec *dst,

				 const struct compat_itimerspec __user *src);

extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,

				 const struct itimerspec *src);

asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,

		struct timezone __user *tz);

asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,

		struct timezone __user *tz);

asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);

extern int compat_printk(const char *fmt, ...);

extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);

asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,

		compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,

		const compat_ulong_t __user *new_nodes);

extern int compat_ptrace_request(struct task_struct *child,

				 compat_long_t request,

				 compat_ulong_t addr, compat_ulong_t data);

extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,

			       compat_ulong_t addr, compat_ulong_t data);

asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,

				  compat_long_t addr, compat_long_t data);

/*

 * epoll (fs/eventpoll.c) compat bits follow ...

 */

struct epoll_event;

#define compat_epoll_event	epoll_event

asmlinkage long compat_sys_epoll_pwait(int epfd,

			struct compat_epoll_event __user *events,

			int maxevents, int timeout,

			const compat_sigset_t __user *sigmask,

			compat_size_t sigsetsize);

asmlinkage long compat_sys_utimensat(unsigned int dfd, char __user *filename,

				struct compat_timespec __user *t, int flags);

asmlinkage long compat_sys_signalfd(int ufd,

				const compat_sigset_t __user *sigmask,

                                compat_size_t sigsetsize);

asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,

				   const struct compat_itimerspec __user *utmr,

				   struct compat_itimerspec __user *otmr);

asmlinkage long compat_sys_timerfd_gettime(int ufd,

				   struct compat_itimerspec __user *otmr);

#endif /* CONFIG_COMPAT */

#endif /* _LINUX_COMPAT_H */