#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 <linux/socket.h>#include <linux/if.h>#include <linux/fs.h>#include <linux/aio_abi.h>	/* for aio_context_t */ #include <asm/compat.h>#include <asm/siginfo.h>#include <asm/signal.h> #ifndef COMPAT_USE_64BIT_TIME#define COMPAT_USE_64BIT_TIME 0#endif #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 compat_sel_arg_struct;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; /* * These functions operate strictly on struct compat_time* */extern int get_compat_timespec(struct timespec *,			       const struct compat_timespec __user *);extern int put_compat_timespec(const struct timespec *,			       struct compat_timespec __user *);extern int get_compat_timeval(struct timeval *,			      const struct compat_timeval __user *);extern int put_compat_timeval(const struct timeval *,			      struct compat_timeval __user *);/* * These functions operate on 32- or 64-bit specs depending on * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments and the * naming as compat_get/put_ rather than get/put_compat_. */extern int compat_get_timespec(struct timespec *, const void __user *);extern int compat_put_timespec(const struct timespec *, void __user *);extern int compat_get_timeval(struct timeval *, const void __user *);extern int compat_put_timeval(const struct timeval *, void __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];}; struct compat_ustat {	compat_daddr_t		f_tfree;	compat_ino_t		f_tinode;	char			f_fname[6];	char			f_fpack[6];}; 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_ifmap {	compat_ulong_t mem_start;	compat_ulong_t mem_end;	unsigned short base_addr;	unsigned char irq;	unsigned char dma;	unsigned char port;}; struct compat_if_settings {	unsigned int type;	/* Type of physical device or protocol */	unsigned int size;	/* Size of the data allocated by the caller */	compat_uptr_t ifs_ifsu;	/* union of pointers */}; struct compat_ifreq {	union {		char	ifrn_name[IFNAMSIZ];    /* if name, e.g. "en0" */	} ifr_ifrn;	union {		struct	sockaddr ifru_addr;		struct	sockaddr ifru_dstaddr;		struct	sockaddr ifru_broadaddr;		struct	sockaddr ifru_netmask;		struct	sockaddr ifru_hwaddr;		short	ifru_flags;		compat_int_t	ifru_ivalue;		compat_int_t	ifru_mtu;		struct	compat_ifmap ifru_map;		char	ifru_slave[IFNAMSIZ];   /* Just fits the size */		char	ifru_newname[IFNAMSIZ];		compat_caddr_t	ifru_data;		struct	compat_if_settings ifru_settings;	} ifr_ifru;}; struct compat_ifconf {	compat_int_t	ifc_len;                /* size of buffer */	compat_caddr_t  ifcbuf;}; 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;}; struct compat_statfs;struct compat_statfs64;struct compat_old_linux_dirent;struct compat_linux_dirent;struct linux_dirent64;struct compat_msghdr;struct compat_mmsghdr;struct compat_sysinfo;struct compat_sysctl_args;struct compat_kexec_segment;struct compat_mq_attr;struct compat_msgbuf; extern void compat_exit_robust_list(struct task_struct *curr); asmlinkage longcompat_sys_set_robust_list(struct compat_robust_list_head __user *head,			   compat_size_t len);asmlinkage longcompat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,			   compat_size_t __user *len_ptr); #ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPClong 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_shmat(int first, int second, compat_uptr_t third, int version,		void __user *uptr);#elselong compat_sys_semctl(int semid, int semnum, int cmd, int arg);long compat_sys_msgsnd(int msqid, struct compat_msgbuf __user *msgp,		compat_ssize_t msgsz, int msgflg);long compat_sys_msgrcv(int msqid, struct compat_msgbuf __user *msgp,		compat_ssize_t msgsz, long msgtyp, int msgflg);long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);#endiflong compat_sys_msgctl(int first, int second, 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 long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32); 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);asmlinkage ssize_t compat_sys_preadv(unsigned long fd,		const struct compat_iovec __user *vec,		unsigned long vlen, u32 pos_low, u32 pos_high);asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,		const struct compat_iovec __user *vec,		unsigned long vlen, u32 pos_low, u32 pos_high); 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_old_select(struct compat_sel_arg_struct __user *arg); 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);long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,				  struct compat_siginfo __user *uinfo); 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_eventasmlinkage 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_utime(const char __user *filename,				 struct compat_utimbuf __user *t);asmlinkage long compat_sys_utimensat(unsigned int dfd,				     const char __user *filename,				     struct compat_timespec __user *t,				     int flags); asmlinkage long compat_sys_time(compat_time_t __user *tloc);asmlinkage long compat_sys_stime(compat_time_t __user *tptr);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); asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,				      __u32 __user *pages,				      const int __user *nodes,				      int __user *status,				      int flags);asmlinkage long compat_sys_futimesat(unsigned int dfd,				     const char __user *filename,				     struct compat_timeval __user *t);asmlinkage long compat_sys_utimes(const char __user *filename,				  struct compat_timeval __user *t);asmlinkage long compat_sys_newstat(const char __user *filename,				   struct compat_stat __user *statbuf);asmlinkage long compat_sys_newlstat(const char __user *filename,				    struct compat_stat __user *statbuf);asmlinkage long compat_sys_newfstatat(unsigned int dfd,				      const char __user *filename,				      struct compat_stat __user *statbuf,				      int flag);asmlinkage long compat_sys_newfstat(unsigned int fd,				    struct compat_stat __user *statbuf);asmlinkage long compat_sys_statfs(const char __user *pathname,				  struct compat_statfs __user *buf);asmlinkage long compat_sys_fstatfs(unsigned int fd,				   struct compat_statfs __user *buf);asmlinkage long compat_sys_statfs64(const char __user *pathname,				    compat_size_t sz,				    struct compat_statfs64 __user *buf);asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,				     struct compat_statfs64 __user *buf);asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,				   unsigned long arg);asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,				 unsigned long arg);asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);asmlinkage long compat_sys_io_getevents(aio_context_t ctx_id,					unsigned long min_nr,					unsigned long nr,					struct io_event __user *events,					struct compat_timespec __user *timeout);asmlinkage long compat_sys_io_submit(aio_context_t ctx_id, int nr,				     u32 __user *iocb);asmlinkage long compat_sys_mount(const char __user *dev_name,				 const char __user *dir_name,				 const char __user *type, unsigned long flags,				 const void __user *data);asmlinkage long compat_sys_old_readdir(unsigned int fd,				       struct compat_old_linux_dirent __user *,				       unsigned int count);asmlinkage long compat_sys_getdents(unsigned int fd,				    struct compat_linux_dirent __user *dirent,				    unsigned int count);asmlinkage long compat_sys_getdents64(unsigned int fd,				      struct linux_dirent64 __user *dirent,				      unsigned int count);asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,				    unsigned int nr_segs, unsigned int flags);asmlinkage long compat_sys_open(const char __user *filename, int flags,				umode_t mode);asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,				  int flags, umode_t mode);asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,					     struct file_handle __user *handle,					     int flags);asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,				    compat_ulong_t __user *outp,				    compat_ulong_t __user *exp,				    struct compat_timespec __user *tsp,				    void __user *sig);asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,				 unsigned int nfds,				 struct compat_timespec __user *tsp,				 const compat_sigset_t __user *sigmask,				 compat_size_t sigsetsize);asmlinkage long compat_sys_signalfd4(int ufd,				     const compat_sigset_t __user *sigmask,				     compat_size_t sigsetsize, int flags);asmlinkage long compat_sys_get_mempolicy(int __user *policy,					 compat_ulong_t __user *nmask,					 compat_ulong_t maxnode,					 compat_ulong_t addr,					 compat_ulong_t flags);asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,					 compat_ulong_t maxnode);asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,				 compat_ulong_t mode,				 compat_ulong_t __user *nmask,				 compat_ulong_t maxnode, compat_ulong_t flags); asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,				      char __user *optval, unsigned int optlen);asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,				   unsigned flags);asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,				    unsigned vlen, unsigned int flags);asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,				   unsigned int flags);asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len,				unsigned flags);asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,			    unsigned flags, struct sockaddr __user *addr,			    int __user *addrlen);asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,				    unsigned vlen, unsigned int flags,

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