[mirror_ubuntu-artful-kernel.git] / include / linux / compat.h

#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 <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 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;

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];
};

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;
};

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 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_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, const 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);

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_newfstatat(unsigned int dfd, const char __user * filename,
				      struct compat_stat __user *statbuf,
				      int flag);
asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
				  int flags, int mode);

extern ssize_t compat_rw_copy_check_uvector(int type,
		const struct compat_iovec __user *uvector, unsigned long nr_segs,
		unsigned long fast_segs, struct iovec *fast_pointer,
		struct iovec **ret_pointer);

extern void __user *compat_alloc_user_space(unsigned long len);

#endif /* CONFIG_COMPAT */
#endif /* _LINUX_COMPAT_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_COMPAT_H
	2	#define _LINUX_COMPAT_H
	3	/*
	4	* These are the type definitions for the architecture specific
	5	* syscall compatibility layer.
	6	*/
1da177e4 LT	7
	8	#ifdef CONFIG_COMPAT
	9
	10	#include <linux/stat.h>
	11	#include <linux/param.h> /* for HZ */
	12	#include <linux/sem.h>
2dceba14 AB	13	#include <linux/socket.h>
2dceba14 AB	14	#include <linux/if.h>
1da177e4 LT	15
	16	#include <asm/compat.h>
	17	#include <asm/siginfo.h>
3f2e05e9	18	#include <asm/signal.h>
1da177e4 LT	19
	20	#define compat_jiffies_to_clock_t(x) \
	21	(((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
	22
202e5979 SR	23	typedef __compat_uid32_t compat_uid_t;
	24	typedef __compat_gid32_t compat_gid_t;
	25
5d0e5283	26	struct compat_sel_arg_struct;
1da177e4 LT	27	struct rusage;
	28
	29	struct compat_itimerspec {
	30	struct compat_timespec it_interval;
	31	struct compat_timespec it_value;
	32	};
	33
	34	struct compat_utimbuf {
	35	compat_time_t actime;
	36	compat_time_t modtime;
	37	};
	38
	39	struct compat_itimerval {
	40	struct compat_timeval it_interval;
	41	struct compat_timeval it_value;
	42	};
	43
	44	struct compat_tms {
	45	compat_clock_t tms_utime;
	46	compat_clock_t tms_stime;
	47	compat_clock_t tms_cutime;
	48	compat_clock_t tms_cstime;
	49	};
	50
88959ea9 SR	51	struct compat_timex {
	52	compat_uint_t modes;
	53	compat_long_t offset;
	54	compat_long_t freq;
	55	compat_long_t maxerror;
	56	compat_long_t esterror;
	57	compat_int_t status;
	58	compat_long_t constant;
	59	compat_long_t precision;
	60	compat_long_t tolerance;
	61	struct compat_timeval time;
	62	compat_long_t tick;
	63	compat_long_t ppsfreq;
	64	compat_long_t jitter;
	65	compat_int_t shift;
	66	compat_long_t stabil;
	67	compat_long_t jitcnt;
	68	compat_long_t calcnt;
	69	compat_long_t errcnt;
	70	compat_long_t stbcnt;
153b5d05	71	compat_int_t tai;
88959ea9 SR	72
	73	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
	74	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
153b5d05	75	compat_int_t :32; compat_int_t :32; compat_int_t :32;
88959ea9 SR	76	};
88959ea9 SR	77
1da177e4 LT	78	#define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
	79
	80	typedef struct {
	81	compat_sigset_word sig[_COMPAT_NSIG_WORDS];
	82	} compat_sigset_t;
	83
1da177e4 LT	84	extern int get_compat_timespec(struct timespec , const struct compat_timespec __user );
	85	extern int put_compat_timespec(const struct timespec , struct compat_timespec __user );
	86
	87	struct compat_iovec {
	88	compat_uptr_t iov_base;
	89	compat_size_t iov_len;
	90	};
	91
	92	struct compat_rlimit {
	93	compat_ulong_t rlim_cur;
	94	compat_ulong_t rlim_max;
	95	};
	96
	97	struct compat_rusage {
	98	struct compat_timeval ru_utime;
	99	struct compat_timeval ru_stime;
	100	compat_long_t ru_maxrss;
	101	compat_long_t ru_ixrss;
	102	compat_long_t ru_idrss;
	103	compat_long_t ru_isrss;
	104	compat_long_t ru_minflt;
	105	compat_long_t ru_majflt;
	106	compat_long_t ru_nswap;
	107	compat_long_t ru_inblock;
	108	compat_long_t ru_oublock;
	109	compat_long_t ru_msgsnd;
	110	compat_long_t ru_msgrcv;
	111	compat_long_t ru_nsignals;
	112	compat_long_t ru_nvcsw;
	113	compat_long_t ru_nivcsw;
	114	};
	115
	116	extern int put_compat_rusage(const struct rusage , struct compat_rusage __user );
	117
	118	struct compat_siginfo;
	119
	120	extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
	121	struct compat_siginfo __user *, int,
	122	struct compat_rusage __user *);
	123
	124	struct compat_dirent {
	125	u32 d_ino;
	126	compat_off_t d_off;
	127	u16 d_reclen;
	128	char d_name[256];
	129	};
	130
2b1c6bd7 CH	131	struct compat_ustat {
	132	compat_daddr_t f_tfree;
	133	compat_ino_t f_tinode;
	134	char f_fname[6];
	135	char f_fpack[6];
	136	};
	137
1da177e4 LT	138	typedef union compat_sigval {
	139	compat_int_t sival_int;
	140	compat_uptr_t sival_ptr;
	141	} compat_sigval_t;
	142
	143	#define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
	144
	145	typedef struct compat_sigevent {
	146	compat_sigval_t sigev_value;
	147	compat_int_t sigev_signo;
	148	compat_int_t sigev_notify;
	149	union {
	150	compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
	151	compat_int_t _tid;
	152
	153	struct {
	154	compat_uptr_t _function;
	155	compat_uptr_t _attribute;
	156	} _sigev_thread;
	157	} _sigev_un;
	158	} compat_sigevent_t;
	159
2dceba14 AB	160	struct compat_ifmap {
	161	compat_ulong_t mem_start;
	162	compat_ulong_t mem_end;
	163	unsigned short base_addr;
	164	unsigned char irq;
	165	unsigned char dma;
	166	unsigned char port;
	167	};
	168
7a50a240 AB	169	struct compat_if_settings
	170	{
	171	unsigned int type; /* Type of physical device or protocol */
	172	unsigned int size; /* Size of the data allocated by the caller */
	173	compat_uptr_t ifs_ifsu; /* union of pointers */
	174	};
	175
2dceba14	176	struct compat_ifreq {
7a50a240 AB	177	union {
	178	char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */
	179	} ifr_ifrn;
	180	union {
	181	struct sockaddr ifru_addr;
	182	struct sockaddr ifru_dstaddr;
	183	struct sockaddr ifru_broadaddr;
	184	struct sockaddr ifru_netmask;
	185	struct sockaddr ifru_hwaddr;
	186	short ifru_flags;
	187	compat_int_t ifru_ivalue;
	188	compat_int_t ifru_mtu;
	189	struct compat_ifmap ifru_map;
	190	char ifru_slave[IFNAMSIZ]; /* Just fits the size */
2dceba14	191	char ifru_newname[IFNAMSIZ];
7a50a240 AB	192	compat_caddr_t ifru_data;
	193	struct compat_if_settings ifru_settings;
	194	} ifr_ifru;
2dceba14 AB	195	};
	196
	197	struct compat_ifconf {
	198	compat_int_t ifc_len; /* size of buffer */
	199	compat_caddr_t ifcbuf;
	200	};
	201
34f192c6 IM	202	struct compat_robust_list {
	203	compat_uptr_t next;
	204	};
	205
	206	struct compat_robust_list_head {
	207	struct compat_robust_list list;
	208	compat_long_t futex_offset;
	209	compat_uptr_t list_op_pending;
	210	};
	211
	212	extern void compat_exit_robust_list(struct task_struct *curr);
	213
	214	asmlinkage long
	215	compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
	216	compat_size_t len);
	217	asmlinkage long
ba46df98	218	compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
34f192c6	219	compat_size_t __user *len_ptr);
1da177e4 LT	220
	221	long compat_sys_semctl(int first, int second, int third, void __user *uptr);
	222	long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
	223	long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
	224	int version, void __user *uptr);
	225	long compat_sys_msgctl(int first, int second, void __user *uptr);
	226	long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
	227	void __user *uptr);
	228	long compat_sys_shmctl(int first, int second, void __user *uptr);
	229	long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
	230	unsigned nsems, const struct compat_timespec __user *timeout);
	231	asmlinkage long compat_sys_keyctl(u32 option,
	232	u32 arg2, u32 arg3, u32 arg4, u32 arg5);
2b1c6bd7	233	asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
1da177e4 LT	234
	235	asmlinkage ssize_t compat_sys_readv(unsigned long fd,
	236	const struct compat_iovec __user *vec, unsigned long vlen);
	237	asmlinkage ssize_t compat_sys_writev(unsigned long fd,
	238	const struct compat_iovec __user *vec, unsigned long vlen);
f3554f4b GH	239	asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
f3554f4b GH	240	const struct compat_iovec __user *vec,
601cc11d	241	unsigned long vlen, u32 pos_low, u32 pos_high);
f3554f4b GH	242	asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
f3554f4b GH	243	const struct compat_iovec __user *vec,
601cc11d	244	unsigned long vlen, u32 pos_low, u32 pos_high);
1da177e4 LT	245
	246	int compat_do_execve(char * filename, compat_uptr_t __user *argv,
	247	compat_uptr_t __user envp, struct pt_regs regs);
	248
	249	asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
	250	compat_ulong_t __user outp, compat_ulong_t __user exp,
	251	struct compat_timeval __user *tvp);
	252
5d0e5283 CH	253	asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
5d0e5283 CH	254
c202f298	255	asmlinkage long compat_sys_wait4(compat_pid_t pid,
7d61c459 AV	256	compat_uint_t __user *stat_addr, int options,
7d61c459 AV	257	struct compat_rusage __user *ru);
c202f298	258
1da177e4 LT	259	#define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
	260
	261	#define BITS_TO_COMPAT_LONGS(bits) \
	262	(((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
	263
5fa3839a	264	long compat_get_bitmap(unsigned long mask, const compat_ulong_t __user umask,
1da177e4 LT	265	unsigned long bitmap_size);
	266	long compat_put_bitmap(compat_ulong_t __user umask, unsigned long mask,
	267	unsigned long bitmap_size);
	268	int copy_siginfo_from_user32(siginfo_t to, struct compat_siginfo __user from);
	269	int copy_siginfo_to_user32(struct compat_siginfo __user to, siginfo_t from);
	270	int get_compat_sigevent(struct sigevent *event,
	271	const struct compat_sigevent __user *u_event);
62ab4505 TG	272	long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
62ab4505 TG	273	struct compat_siginfo __user *uinfo);
1da177e4	274
643a6545 AM	275	static inline int compat_timeval_compare(struct compat_timeval *lhs,
	276	struct compat_timeval *rhs)
	277	{
	278	if (lhs->tv_sec < rhs->tv_sec)
	279	return -1;
	280	if (lhs->tv_sec > rhs->tv_sec)
	281	return 1;
	282	return lhs->tv_usec - rhs->tv_usec;
	283	}
	284
	285	static inline int compat_timespec_compare(struct compat_timespec *lhs,
	286	struct compat_timespec *rhs)
	287	{
	288	if (lhs->tv_sec < rhs->tv_sec)
	289	return -1;
	290	if (lhs->tv_sec > rhs->tv_sec)
	291	return 1;
	292	return lhs->tv_nsec - rhs->tv_nsec;
	293	}
	294
83f5d126 DL	295	extern int get_compat_itimerspec(struct itimerspec *dst,
	296	const struct compat_itimerspec __user *src);
	297	extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
	298	const struct itimerspec *src);
	299
b418da16 CH	300	asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
	301	struct timezone __user *tz);
	302	asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
	303	struct timezone __user *tz);
	304
3158e941 SR	305	asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
3158e941 SR	306
bebfa101	307	extern int compat_printk(const char *fmt, ...);
0235497f	308	extern void sigset_from_compat(sigset_t set, compat_sigset_t compat);
bebfa101	309
3fd59397 SR	310	asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
	311	compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
	312	const compat_ulong_t __user *new_nodes);
	313
032d82d9 RM	314	extern int compat_ptrace_request(struct task_struct *child,
	315	compat_long_t request,
	316	compat_ulong_t addr, compat_ulong_t data);
	317
c269f196 RM	318	extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
	319	compat_ulong_t addr, compat_ulong_t data);
	320	asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
	321	compat_long_t addr, compat_long_t data);
c269f196	322
f6dfb4fd DL	323	/*
	324	* epoll (fs/eventpoll.c) compat bits follow ...
	325	*/
f6dfb4fd DL	326	struct epoll_event;
f6dfb4fd DL	327	#define compat_epoll_event epoll_event
f6dfb4fd DL	328	asmlinkage long compat_sys_epoll_pwait(int epfd,
	329	struct compat_epoll_event __user *events,
	330	int maxevents, int timeout,
	331	const compat_sigset_t __user *sigmask,
	332	compat_size_t sigsetsize);
	333
c7887325	334	asmlinkage long compat_sys_utimensat(unsigned int dfd, const char __user *filename,
97416ce8 SR	335	struct compat_timespec __user *t, int flags);
97416ce8 SR	336
140ff8b0 SR	337	asmlinkage long compat_sys_signalfd(int ufd,
	338	const compat_sigset_t __user *sigmask,
	339	compat_size_t sigsetsize);
4d672e7a DL	340	asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
	341	const struct compat_itimerspec __user *utmr,
	342	struct compat_itimerspec __user *otmr);
	343	asmlinkage long compat_sys_timerfd_gettime(int ufd,
	344	struct compat_itimerspec __user *otmr);
140ff8b0	345
4c696ba7 HC	346	asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,
	347	__u32 __user *pages,
	348	const int __user *nodes,
	349	int __user *status,
	350	int flags);
c7887325	351	asmlinkage long compat_sys_futimesat(unsigned int dfd, const char __user *filename,
4c696ba7	352	struct compat_timeval __user *t);
c7887325	353	asmlinkage long compat_sys_newfstatat(unsigned int dfd, const char __user * filename,
4c696ba7 HC	354	struct compat_stat __user *statbuf,
	355	int flag);
	356	asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
	357	int flags, int mode);
	358
b8373363 JM	359	extern ssize_t compat_rw_copy_check_uvector(int type,
	360	const struct compat_iovec __user *uvector, unsigned long nr_segs,
	361	unsigned long fast_segs, struct iovec *fast_pointer,
	362	struct iovec **ret_pointer);
c41d68a5 PA	363
	364	extern void __user *compat_alloc_user_space(unsigned long len);
	365
1da177e4 LT	366	#endif /* CONFIG_COMPAT */
1da177e4 LT	367	#endif /* _LINUX_COMPAT_H */