cregit-Linux how code gets into the kernel

Release 4.7 include/linux/compat.h

Directory: include/linux
#ifndef _LINUX_COMPAT_H

#define _LINUX_COMPAT_H
/*
 * These are the type definitions for the architecture specific
 * syscall compatibility layer.
 */

#include <linux/types.h>

#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 <linux/unistd.h>

#include <asm/compat.h>
#include <asm/siginfo.h>
#include <asm/signal.h>

#ifndef COMPAT_USE_64BIT_TIME

#define COMPAT_USE_64BIT_TIME 0
#endif

#ifndef __SC_DELOUSE

#define __SC_DELOUSE(t,v) ((t)(unsigned long)(v))
#endif


#define COMPAT_SYSCALL_DEFINE0(name) \
	asmlinkage long compat_sys_##name(void)


#define COMPAT_SYSCALL_DEFINE1(name, ...) \
        COMPAT_SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)

#define COMPAT_SYSCALL_DEFINE2(name, ...) \
	COMPAT_SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)

#define COMPAT_SYSCALL_DEFINE3(name, ...) \
	COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)

#define COMPAT_SYSCALL_DEFINE4(name, ...) \
	COMPAT_SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)

#define COMPAT_SYSCALL_DEFINE5(name, ...) \
	COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)

#define COMPAT_SYSCALL_DEFINE6(name, ...) \
	COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)


#define COMPAT_SYSCALL_DEFINEx(x, name, ...)				\
	asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\
                __attribute__((alias(__stringify(compat_SyS##name))));  \
        static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
        asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));\
        asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\
        {                                                               \
                return C_SYSC##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__)); \
        }                                                               \
        static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))

#ifndef compat_user_stack_pointer

#define compat_user_stack_pointer() current_user_stack_pointer()
#endif
#ifndef compat_sigaltstack	/* we'll need that for MIPS */

typedef struct compat_sigaltstack {
	
compat_uptr_t			ss_sp;
	
int				ss_flags;
	
compat_size_t			ss_size;
} 
compat_stack_t;
#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;


typedef	compat_ulong_t		compat_aio_context_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;


struct compat_sigaction {
#ifndef __ARCH_HAS_IRIX_SIGACTION
	
compat_uptr_t			sa_handler;
	
compat_ulong_t			sa_flags;
#else
	compat_uint_t			sa_flags;
	compat_uptr_t			sa_handler;
#endif
#ifdef __ARCH_HAS_SA_RESTORER
	
compat_uptr_t			sa_restorer;
#endif
	
compat_sigset_t			sa_mask __packed;
};

/*
 * These functions operate on 32- or 64-bit specs depending on
 * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments.
 */
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 *);

/*
 * This function convert a timespec if necessary and returns a *user
 * space* pointer.  If no conversion is necessary, it returns the
 * initial pointer.  NULL is a legitimate argument and will always
 * output NULL.
 */
extern int compat_convert_timespec(struct timespec __user **,
				   const 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];
};


#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;
};

#ifdef CONFIG_COMPAT_OLD_SIGACTION

struct compat_old_sigaction {
	
compat_uptr_t			sa_handler;
	
compat_old_sigset_t		sa_mask;
	
compat_ulong_t			sa_flags;
	
compat_uptr_t			sa_restorer;
};
#endif

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 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);

asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32);
asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp,
		compat_ssize_t msgsz, int msgflg);
asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp,
		compat_ssize_t msgsz, compat_long_t msgtyp, int msgflg);
long 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(compat_ulong_t fd,
		const struct compat_iovec __user *vec, compat_ulong_t vlen);
asmlinkage ssize_t compat_sys_writev(compat_ulong_t fd,
		const struct compat_iovec __user *vec, compat_ulong_t vlen);
asmlinkage ssize_t compat_sys_preadv(compat_ulong_t fd,
		const struct compat_iovec __user *vec,
		compat_ulong_t vlen, u32 pos_low, u32 pos_high);
asmlinkage ssize_t compat_sys_pwritev(compat_ulong_t fd,
		const struct compat_iovec __user *vec,
		compat_ulong_t vlen, u32 pos_low, u32 pos_high);
asmlinkage ssize_t compat_sys_preadv2(compat_ulong_t fd,
		const struct compat_iovec __user *vec,
		compat_ulong_t vlen, u32 pos_low, u32 pos_high, int flags);
asmlinkage ssize_t compat_sys_pwritev2(compat_ulong_t fd,
		const struct compat_iovec __user *vec,
		compat_ulong_t vlen, u32 pos_low, u32 pos_high, int flags);

#ifdef __ARCH_WANT_COMPAT_SYS_PREADV64
asmlinkage long compat_sys_preadv64(unsigned long fd,
		const struct compat_iovec __user *vec,
		unsigned long vlen, loff_t pos);
#endif

#ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64
asmlinkage long compat_sys_pwritev64(unsigned long fd,
		const struct compat_iovec __user *vec,
		unsigned long vlen, loff_t pos);
#endif

asmlinkage long compat_sys_lseek(unsigned int, compat_off_t, unsigned int);

asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
		     const compat_uptr_t __user *envp);
asmlinkage long compat_sys_execveat(int dfd, const char __user *filename,
		     const compat_uptr_t __user *argv,
		     const compat_uptr_t __user *envp, int flags);

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, const 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);
#ifdef CONFIG_COMPAT_OLD_SIGACTION
asmlinkage long compat_sys_sigaction(int sig,
                                   const struct compat_old_sigaction __user *act,
                                   struct compat_old_sigaction __user *oact);
#endif


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; }

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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; }

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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 __printf(1, 2) int compat_printk(const char *fmt, ...); extern void sigset_from_compat(sigset_t *set, const compat_sigset_t *compat); extern void sigset_to_compat(compat_sigset_t *compat, const sigset_t *set); 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); asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t); /* * epoll (fs/eventpoll.c) compat bits follow ... */ struct epoll_event; /* fortunately, this one is fixed-layout */ asmlinkage long compat_sys_epoll_pwait(int epfd, struct 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, compat_ulong_t nr_pages, __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, compat_ulong_t arg); asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd, compat_ulong_t arg); asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p); asmlinkage long compat_sys_io_getevents(compat_aio_context_t ctx_id, compat_long_t min_nr, compat_long_t nr, struct io_event __user *events, struct compat_timespec __user *timeout); asmlinkage long compat_sys_io_submit(compat_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, compat_ulong_t 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); #ifdef __ARCH_WANT_COMPAT_SYS_GETDENTS64 asmlinkage long compat_sys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent, unsigned int count); #endif 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(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_truncate(const char __user *, compat_off_t); asmlinkage long compat_sys_ftruncate(unsigned int, compat_ulong_t); 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, compat_size_t len, unsigned flags); asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, compat_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, struct compat_timespec __user *timeout); asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp, struct compat_timespec __user *rmtp); asmlinkage long compat_sys_getitimer(int which, struct compat_itimerval __user *it); asmlinkage long compat_sys_setitimer(int which, struct compat_itimerval __user *in, struct compat_itimerval __user *out); asmlinkage long compat_sys_times(struct compat_tms __user *tbuf); asmlinkage long compat_sys_setrlimit(unsigned int resource, struct compat_rlimit __user *rlim); asmlinkage long compat_sys_getrlimit(unsigned int resource, struct compat_rlimit __user *rlim); asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru); asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid, unsigned int len, compat_ulong_t __user *user_mask_ptr); asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid, unsigned int len, compat_ulong_t __user *user_mask_ptr); asmlinkage long compat_sys_timer_create(clockid_t which_clock, struct compat_sigevent __user *timer_event_spec, timer_t __user *created_timer_id); asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags, struct compat_itimerspec __user *new, struct compat_itimerspec __user *old); asmlinkage long compat_sys_timer_gettime(timer_t timer_id, struct compat_itimerspec __user *setting); asmlinkage long compat_sys_clock_settime(clockid_t which_clock, struct compat_timespec __user *tp); asmlinkage long compat_sys_clock_gettime(clockid_t which_clock, struct compat_timespec __user *tp); asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock, struct compat_timex __user *tp); asmlinkage long compat_sys_clock_getres(clockid_t which_clock, struct compat_timespec __user *tp); asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags, struct compat_timespec __user *rqtp, struct compat_timespec __user *rmtp); asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese, struct compat_siginfo __user *uinfo, struct compat_timespec __user *uts, compat_size_t sigsetsize); asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset, compat_size_t sigsetsize); asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set, compat_sigset_t __user *oset, compat_size_t sigsetsize); asmlinkage long compat_sys_rt_sigpending(compat_sigset_t __user *uset, compat_size_t sigsetsize); #ifndef CONFIG_ODD_RT_SIGACTION asmlinkage long compat_sys_rt_sigaction(int, const struct compat_sigaction __user *, struct compat_sigaction __user *, compat_size_t); #endif asmlinkage long compat_sys_rt_sigqueueinfo(compat_pid_t pid, int sig, struct compat_siginfo __user *uinfo); asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info); asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd, compat_ulong_t arg); asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val, struct compat_timespec __user *utime, u32 __user *uaddr2, u32 val3); asmlinkage long compat_sys_getsockopt(int fd, int level, int optname, char __user *optval, int __user *optlen); asmlinkage long compat_sys_kexec_load(compat_ulong_t entry, compat_ulong_t nr_segments, struct compat_kexec_segment __user *, compat_ulong_t flags); asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes, const struct compat_mq_attr __user *u_mqstat, struct compat_mq_attr __user *u_omqstat); asmlinkage long compat_sys_mq_notify(mqd_t mqdes, const struct compat_sigevent __user *u_notification); asmlinkage long compat_sys_mq_open(const char __user *u_name, int oflag, compat_mode_t mode, struct compat_mq_attr __user *u_attr); asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes, const char __user *u_msg_ptr, compat_size_t msg_len, unsigned int msg_prio, const struct compat_timespec __user *u_abs_timeout); asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes, char __user *u_msg_ptr, compat_size_t msg_len, unsigned int __user *u_msg_prio, const struct compat_timespec __user *u_abs_timeout); asmlinkage long compat_sys_socketcall(int call, u32 __user *args); asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args); 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); asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid, const struct compat_iovec __user *lvec, compat_ulong_t liovcnt, const struct compat_iovec __user *rvec, compat_ulong_t riovcnt, compat_ulong_t flags); asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid, const struct compat_iovec __user *lvec, compat_ulong_t liovcnt, const struct compat_iovec __user *rvec, compat_ulong_t riovcnt, compat_ulong_t flags); asmlinkage long compat_sys_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, compat_size_t count); asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, compat_size_t count); asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr, compat_stack_t __user *uoss_ptr); #ifdef __ARCH_WANT_SYS_SIGPENDING asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set); #endif #ifdef __ARCH_WANT_SYS_SIGPROCMASK asmlinkage long compat_sys_sigprocmask(int how, compat_old_sigset_t __user *nset, compat_old_sigset_t __user *oset); #endif int compat_restore_altstack(const compat_stack_t __user *uss); int __compat_save_altstack(compat_stack_t __user *, unsigned long); #define compat_save_altstack_ex(uss, sp) do { \ compat_stack_t __user *__uss = uss; \ struct task_struct *t = current; \ put_user_ex(ptr_to_compat((void __user *)t->sas_ss_sp), &__uss->ss_sp); \ put_user_ex(sas_ss_flags(sp), &__uss->ss_flags); \ put_user_ex(t->sas_ss_size, &__uss->ss_size); \ } while (0); asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval); asmlinkage long compat_sys_fanotify_mark(int, unsigned int, __u32, __u32, int, const char __user *); /* * For most but not all architectures, "am I in a compat syscall?" and * "am I a compat task?" are the same question. For architectures on which * they aren't the same question, arch code can override in_compat_syscall. */ #ifndef in_compat_syscall
static inline bool in_compat_syscall(void) { return is_compat_task(); }

Contributors

PersonTokensPropCommitsCommitProp
andy lutomirskiandy lutomirski13100.00%1100.00%
Total13100.00%1100.00%

#endif #else #define is_compat_task() (0)
static inline bool in_compat_syscall(void) { return false; }

Contributors

PersonTokensPropCommitsCommitProp
andy lutomirskiandy lutomirski12100.00%1100.00%
Total12100.00%1100.00%

#endif /* CONFIG_COMPAT */ #endif /* _LINUX_COMPAT_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
chris metcalfchris metcalf139736.83%54.39%
al viroal viro47212.44%2421.05%
stephen rothwellstephen rothwell3699.73%1815.79%
andrew mortonandrew morton3058.04%97.89%
heiko carstensheiko carstens1965.17%1311.40%
arnd bergmannarnd bergmann1383.64%21.75%
davide libenzidavide libenzi872.29%32.63%
christoph hellwigchristoph hellwig852.24%32.63%
catalin marinascatalin marinas711.87%32.63%
roland mcgrathroland mcgrath701.85%32.63%
randolph chungrandolph chung661.74%10.88%
ingo molnaringo molnar641.69%10.88%
h. peter anvinh. peter anvin611.61%32.63%
milosz tanskimilosz tanski541.42%10.88%
anton blanchardanton blanchard481.27%10.88%
gerd hoffmanngerd hoffmann401.05%10.88%
thomas gleixnerthomas gleixner391.03%21.75%
jeff moyerjeff moyer340.90%10.88%
andy lutomirskiandy lutomirski340.90%10.88%
david drysdaledavid drysdale290.76%10.88%
zou nan haizou nan hai280.74%10.88%
david howellsdavid howells270.71%43.51%
linus torvaldslinus torvalds250.66%43.51%
andi kleenandi kleen250.66%32.63%
benjamin lahaisebenjamin lahaise100.26%10.88%
h.j. luh.j. lu90.24%10.88%
nicolas ioossnicolas iooss40.11%10.88%
roman zippelroman zippel30.08%10.88%
will deaconwill deacon20.05%10.88%
stephan springlstephan springl10.03%10.88%
Total3793100.00%114100.00%
Directory: include/linux
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