Merge remote-tracking branch 'asoc/fix/dwc' into asoc-next
[firefly-linux-kernel-4.4.55.git] / include / linux / compat.h
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  */
7
8 #ifdef CONFIG_COMPAT
9
10 #include <linux/stat.h>
11 #include <linux/param.h>        /* for HZ */
12 #include <linux/sem.h>
13 #include <linux/socket.h>
14 #include <linux/if.h>
15 #include <linux/fs.h>
16 #include <linux/aio_abi.h>      /* for aio_context_t */
17
18 #include <asm/compat.h>
19 #include <asm/siginfo.h>
20 #include <asm/signal.h>
21
22 #ifndef COMPAT_USE_64BIT_TIME
23 #define COMPAT_USE_64BIT_TIME 0
24 #endif
25
26 #ifndef __SC_DELOUSE
27 #define __SC_DELOUSE(t,v) ((t)(unsigned long)(v))
28 #endif
29
30 #define __SC_CCAST1(t1, a1)      __SC_DELOUSE(t1,a1)
31 #define __SC_CCAST2(t2, a2, ...) __SC_DELOUSE(t2,a2), __SC_CCAST1(__VA_ARGS__)
32 #define __SC_CCAST3(t3, a3, ...) __SC_DELOUSE(t3,a3), __SC_CCAST2(__VA_ARGS__)
33 #define __SC_CCAST4(t4, a4, ...) __SC_DELOUSE(t4,a4), __SC_CCAST3(__VA_ARGS__)
34 #define __SC_CCAST5(t5, a5, ...) __SC_DELOUSE(t5,a5), __SC_CCAST4(__VA_ARGS__)
35 #define __SC_CCAST6(t6, a6, ...) __SC_DELOUSE(t6,a6), __SC_CCAST5(__VA_ARGS__)
36 #define COMPAT_SYSCALL_DEFINE1(name, ...) \
37         COMPAT_SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
38 #define COMPAT_SYSCALL_DEFINE2(name, ...) \
39         COMPAT_SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
40 #define COMPAT_SYSCALL_DEFINE3(name, ...) \
41         COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
42 #define COMPAT_SYSCALL_DEFINE4(name, ...) \
43         COMPAT_SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
44 #define COMPAT_SYSCALL_DEFINE5(name, ...) \
45         COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
46 #define COMPAT_SYSCALL_DEFINE6(name, ...) \
47         COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
48
49 #ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
50
51 #define COMPAT_SYSCALL_DEFINEx(x, name, ...)                            \
52         asmlinkage long compat_sys##name(__SC_DECL##x(__VA_ARGS__));    \
53         static inline long C_SYSC##name(__SC_DECL##x(__VA_ARGS__));     \
54         asmlinkage long compat_SyS##name(__SC_LONG##x(__VA_ARGS__))     \
55         {                                                               \
56                 return (long) C_SYSC##name(__SC_CCAST##x(__VA_ARGS__)); \
57         }                                                               \
58         SYSCALL_ALIAS(compat_sys##name, compat_SyS##name);              \
59         static inline long C_SYSC##name(__SC_DECL##x(__VA_ARGS__))
60
61 #else /* CONFIG_HAVE_SYSCALL_WRAPPERS */
62
63 #define COMPAT_SYSCALL_DEFINEx(x, name, ...)                            \
64         asmlinkage long compat_sys##name(__SC_DECL##x(__VA_ARGS__))
65
66 #endif /* CONFIG_HAVE_SYSCALL_WRAPPERS */
67
68 #ifndef compat_user_stack_pointer
69 #define compat_user_stack_pointer() current_user_stack_pointer()
70 #endif
71 #ifdef CONFIG_GENERIC_SIGALTSTACK
72 #ifndef compat_sigaltstack      /* we'll need that for MIPS */
73 typedef struct compat_sigaltstack {
74         compat_uptr_t                   ss_sp;
75         int                             ss_flags;
76         compat_size_t                   ss_size;
77 } compat_stack_t;
78 #endif
79 #endif
80
81 #define compat_jiffies_to_clock_t(x)    \
82                 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
83
84 typedef __compat_uid32_t        compat_uid_t;
85 typedef __compat_gid32_t        compat_gid_t;
86
87 struct compat_sel_arg_struct;
88 struct rusage;
89
90 struct compat_itimerspec {
91         struct compat_timespec it_interval;
92         struct compat_timespec it_value;
93 };
94
95 struct compat_utimbuf {
96         compat_time_t           actime;
97         compat_time_t           modtime;
98 };
99
100 struct compat_itimerval {
101         struct compat_timeval   it_interval;
102         struct compat_timeval   it_value;
103 };
104
105 struct compat_tms {
106         compat_clock_t          tms_utime;
107         compat_clock_t          tms_stime;
108         compat_clock_t          tms_cutime;
109         compat_clock_t          tms_cstime;
110 };
111
112 struct compat_timex {
113         compat_uint_t modes;
114         compat_long_t offset;
115         compat_long_t freq;
116         compat_long_t maxerror;
117         compat_long_t esterror;
118         compat_int_t status;
119         compat_long_t constant;
120         compat_long_t precision;
121         compat_long_t tolerance;
122         struct compat_timeval time;
123         compat_long_t tick;
124         compat_long_t ppsfreq;
125         compat_long_t jitter;
126         compat_int_t shift;
127         compat_long_t stabil;
128         compat_long_t jitcnt;
129         compat_long_t calcnt;
130         compat_long_t errcnt;
131         compat_long_t stbcnt;
132         compat_int_t tai;
133
134         compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
135         compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
136         compat_int_t:32; compat_int_t:32; compat_int_t:32;
137 };
138
139 #define _COMPAT_NSIG_WORDS      (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
140
141 typedef struct {
142         compat_sigset_word      sig[_COMPAT_NSIG_WORDS];
143 } compat_sigset_t;
144
145 /*
146  * These functions operate strictly on struct compat_time*
147  */
148 extern int get_compat_timespec(struct timespec *,
149                                const struct compat_timespec __user *);
150 extern int put_compat_timespec(const struct timespec *,
151                                struct compat_timespec __user *);
152 extern int get_compat_timeval(struct timeval *,
153                               const struct compat_timeval __user *);
154 extern int put_compat_timeval(const struct timeval *,
155                               struct compat_timeval __user *);
156 /*
157  * These functions operate on 32- or 64-bit specs depending on
158  * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments and the
159  * naming as compat_get/put_ rather than get/put_compat_.
160  */
161 extern int compat_get_timespec(struct timespec *, const void __user *);
162 extern int compat_put_timespec(const struct timespec *, void __user *);
163 extern int compat_get_timeval(struct timeval *, const void __user *);
164 extern int compat_put_timeval(const struct timeval *, void __user *);
165
166 struct compat_iovec {
167         compat_uptr_t   iov_base;
168         compat_size_t   iov_len;
169 };
170
171 struct compat_rlimit {
172         compat_ulong_t  rlim_cur;
173         compat_ulong_t  rlim_max;
174 };
175
176 struct compat_rusage {
177         struct compat_timeval ru_utime;
178         struct compat_timeval ru_stime;
179         compat_long_t   ru_maxrss;
180         compat_long_t   ru_ixrss;
181         compat_long_t   ru_idrss;
182         compat_long_t   ru_isrss;
183         compat_long_t   ru_minflt;
184         compat_long_t   ru_majflt;
185         compat_long_t   ru_nswap;
186         compat_long_t   ru_inblock;
187         compat_long_t   ru_oublock;
188         compat_long_t   ru_msgsnd;
189         compat_long_t   ru_msgrcv;
190         compat_long_t   ru_nsignals;
191         compat_long_t   ru_nvcsw;
192         compat_long_t   ru_nivcsw;
193 };
194
195 extern int put_compat_rusage(const struct rusage *,
196                              struct compat_rusage __user *);
197
198 struct compat_siginfo;
199
200 extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
201                 struct compat_siginfo __user *, int,
202                 struct compat_rusage __user *);
203
204 struct compat_dirent {
205         u32             d_ino;
206         compat_off_t    d_off;
207         u16             d_reclen;
208         char            d_name[256];
209 };
210
211 struct compat_ustat {
212         compat_daddr_t          f_tfree;
213         compat_ino_t            f_tinode;
214         char                    f_fname[6];
215         char                    f_fpack[6];
216 };
217
218 #define COMPAT_SIGEV_PAD_SIZE   ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
219
220 typedef struct compat_sigevent {
221         compat_sigval_t sigev_value;
222         compat_int_t sigev_signo;
223         compat_int_t sigev_notify;
224         union {
225                 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
226                 compat_int_t _tid;
227
228                 struct {
229                         compat_uptr_t _function;
230                         compat_uptr_t _attribute;
231                 } _sigev_thread;
232         } _sigev_un;
233 } compat_sigevent_t;
234
235 struct compat_ifmap {
236         compat_ulong_t mem_start;
237         compat_ulong_t mem_end;
238         unsigned short base_addr;
239         unsigned char irq;
240         unsigned char dma;
241         unsigned char port;
242 };
243
244 struct compat_if_settings {
245         unsigned int type;      /* Type of physical device or protocol */
246         unsigned int size;      /* Size of the data allocated by the caller */
247         compat_uptr_t ifs_ifsu; /* union of pointers */
248 };
249
250 struct compat_ifreq {
251         union {
252                 char    ifrn_name[IFNAMSIZ];    /* if name, e.g. "en0" */
253         } ifr_ifrn;
254         union {
255                 struct  sockaddr ifru_addr;
256                 struct  sockaddr ifru_dstaddr;
257                 struct  sockaddr ifru_broadaddr;
258                 struct  sockaddr ifru_netmask;
259                 struct  sockaddr ifru_hwaddr;
260                 short   ifru_flags;
261                 compat_int_t    ifru_ivalue;
262                 compat_int_t    ifru_mtu;
263                 struct  compat_ifmap ifru_map;
264                 char    ifru_slave[IFNAMSIZ];   /* Just fits the size */
265                 char    ifru_newname[IFNAMSIZ];
266                 compat_caddr_t  ifru_data;
267                 struct  compat_if_settings ifru_settings;
268         } ifr_ifru;
269 };
270
271 struct compat_ifconf {
272         compat_int_t    ifc_len;                /* size of buffer */
273         compat_caddr_t  ifcbuf;
274 };
275
276 struct compat_robust_list {
277         compat_uptr_t                   next;
278 };
279
280 struct compat_robust_list_head {
281         struct compat_robust_list       list;
282         compat_long_t                   futex_offset;
283         compat_uptr_t                   list_op_pending;
284 };
285
286 struct compat_statfs;
287 struct compat_statfs64;
288 struct compat_old_linux_dirent;
289 struct compat_linux_dirent;
290 struct linux_dirent64;
291 struct compat_msghdr;
292 struct compat_mmsghdr;
293 struct compat_sysinfo;
294 struct compat_sysctl_args;
295 struct compat_kexec_segment;
296 struct compat_mq_attr;
297 struct compat_msgbuf;
298
299 extern void compat_exit_robust_list(struct task_struct *curr);
300
301 asmlinkage long
302 compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
303                            compat_size_t len);
304 asmlinkage long
305 compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
306                            compat_size_t __user *len_ptr);
307
308 #ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPC
309 long compat_sys_semctl(int first, int second, int third, void __user *uptr);
310 long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
311 long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
312                 int version, void __user *uptr);
313 long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
314                 void __user *uptr);
315 #else
316 long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
317 long compat_sys_msgsnd(int msqid, struct compat_msgbuf __user *msgp,
318                 compat_ssize_t msgsz, int msgflg);
319 long compat_sys_msgrcv(int msqid, struct compat_msgbuf __user *msgp,
320                 compat_ssize_t msgsz, long msgtyp, int msgflg);
321 long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
322 #endif
323 long compat_sys_msgctl(int first, int second, void __user *uptr);
324 long compat_sys_shmctl(int first, int second, void __user *uptr);
325 long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
326                 unsigned nsems, const struct compat_timespec __user *timeout);
327 asmlinkage long compat_sys_keyctl(u32 option,
328                               u32 arg2, u32 arg3, u32 arg4, u32 arg5);
329 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
330
331 asmlinkage ssize_t compat_sys_readv(unsigned long fd,
332                 const struct compat_iovec __user *vec, unsigned long vlen);
333 asmlinkage ssize_t compat_sys_writev(unsigned long fd,
334                 const struct compat_iovec __user *vec, unsigned long vlen);
335 asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
336                 const struct compat_iovec __user *vec,
337                 unsigned long vlen, u32 pos_low, u32 pos_high);
338 asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
339                 const struct compat_iovec __user *vec,
340                 unsigned long vlen, u32 pos_low, u32 pos_high);
341
342 asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
343                      const compat_uptr_t __user *envp);
344
345 asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
346                 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
347                 struct compat_timeval __user *tvp);
348
349 asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
350
351 asmlinkage long compat_sys_wait4(compat_pid_t pid,
352                                  compat_uint_t __user *stat_addr, int options,
353                                  struct compat_rusage __user *ru);
354
355 #define BITS_PER_COMPAT_LONG    (8*sizeof(compat_long_t))
356
357 #define BITS_TO_COMPAT_LONGS(bits) \
358         (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
359
360 long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
361                        unsigned long bitmap_size);
362 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
363                        unsigned long bitmap_size);
364 int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
365 int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
366 int get_compat_sigevent(struct sigevent *event,
367                 const struct compat_sigevent __user *u_event);
368 long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
369                                   struct compat_siginfo __user *uinfo);
370
371 static inline int compat_timeval_compare(struct compat_timeval *lhs,
372                                         struct compat_timeval *rhs)
373 {
374         if (lhs->tv_sec < rhs->tv_sec)
375                 return -1;
376         if (lhs->tv_sec > rhs->tv_sec)
377                 return 1;
378         return lhs->tv_usec - rhs->tv_usec;
379 }
380
381 static inline int compat_timespec_compare(struct compat_timespec *lhs,
382                                         struct compat_timespec *rhs)
383 {
384         if (lhs->tv_sec < rhs->tv_sec)
385                 return -1;
386         if (lhs->tv_sec > rhs->tv_sec)
387                 return 1;
388         return lhs->tv_nsec - rhs->tv_nsec;
389 }
390
391 extern int get_compat_itimerspec(struct itimerspec *dst,
392                                  const struct compat_itimerspec __user *src);
393 extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
394                                  const struct itimerspec *src);
395
396 asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
397                 struct timezone __user *tz);
398 asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
399                 struct timezone __user *tz);
400
401 asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
402
403 extern int compat_printk(const char *fmt, ...);
404 extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
405
406 asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
407                 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
408                 const compat_ulong_t __user *new_nodes);
409
410 extern int compat_ptrace_request(struct task_struct *child,
411                                  compat_long_t request,
412                                  compat_ulong_t addr, compat_ulong_t data);
413
414 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
415                                compat_ulong_t addr, compat_ulong_t data);
416 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
417                                   compat_long_t addr, compat_long_t data);
418
419 /*
420  * epoll (fs/eventpoll.c) compat bits follow ...
421  */
422 struct epoll_event;
423 #define compat_epoll_event      epoll_event
424 asmlinkage long compat_sys_epoll_pwait(int epfd,
425                         struct compat_epoll_event __user *events,
426                         int maxevents, int timeout,
427                         const compat_sigset_t __user *sigmask,
428                         compat_size_t sigsetsize);
429
430 asmlinkage long compat_sys_utime(const char __user *filename,
431                                  struct compat_utimbuf __user *t);
432 asmlinkage long compat_sys_utimensat(unsigned int dfd,
433                                      const char __user *filename,
434                                      struct compat_timespec __user *t,
435                                      int flags);
436
437 asmlinkage long compat_sys_time(compat_time_t __user *tloc);
438 asmlinkage long compat_sys_stime(compat_time_t __user *tptr);
439 asmlinkage long compat_sys_signalfd(int ufd,
440                                     const compat_sigset_t __user *sigmask,
441                                     compat_size_t sigsetsize);
442 asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
443                                    const struct compat_itimerspec __user *utmr,
444                                    struct compat_itimerspec __user *otmr);
445 asmlinkage long compat_sys_timerfd_gettime(int ufd,
446                                    struct compat_itimerspec __user *otmr);
447
448 asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,
449                                       __u32 __user *pages,
450                                       const int __user *nodes,
451                                       int __user *status,
452                                       int flags);
453 asmlinkage long compat_sys_futimesat(unsigned int dfd,
454                                      const char __user *filename,
455                                      struct compat_timeval __user *t);
456 asmlinkage long compat_sys_utimes(const char __user *filename,
457                                   struct compat_timeval __user *t);
458 asmlinkage long compat_sys_newstat(const char __user *filename,
459                                    struct compat_stat __user *statbuf);
460 asmlinkage long compat_sys_newlstat(const char __user *filename,
461                                     struct compat_stat __user *statbuf);
462 asmlinkage long compat_sys_newfstatat(unsigned int dfd,
463                                       const char __user *filename,
464                                       struct compat_stat __user *statbuf,
465                                       int flag);
466 asmlinkage long compat_sys_newfstat(unsigned int fd,
467                                     struct compat_stat __user *statbuf);
468 asmlinkage long compat_sys_statfs(const char __user *pathname,
469                                   struct compat_statfs __user *buf);
470 asmlinkage long compat_sys_fstatfs(unsigned int fd,
471                                    struct compat_statfs __user *buf);
472 asmlinkage long compat_sys_statfs64(const char __user *pathname,
473                                     compat_size_t sz,
474                                     struct compat_statfs64 __user *buf);
475 asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
476                                      struct compat_statfs64 __user *buf);
477 asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
478                                    unsigned long arg);
479 asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
480                                  unsigned long arg);
481 asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
482 asmlinkage long compat_sys_io_getevents(aio_context_t ctx_id,
483                                         unsigned long min_nr,
484                                         unsigned long nr,
485                                         struct io_event __user *events,
486                                         struct compat_timespec __user *timeout);
487 asmlinkage long compat_sys_io_submit(aio_context_t ctx_id, int nr,
488                                      u32 __user *iocb);
489 asmlinkage long compat_sys_mount(const char __user *dev_name,
490                                  const char __user *dir_name,
491                                  const char __user *type, unsigned long flags,
492                                  const void __user *data);
493 asmlinkage long compat_sys_old_readdir(unsigned int fd,
494                                        struct compat_old_linux_dirent __user *,
495                                        unsigned int count);
496 asmlinkage long compat_sys_getdents(unsigned int fd,
497                                     struct compat_linux_dirent __user *dirent,
498                                     unsigned int count);
499 asmlinkage long compat_sys_getdents64(unsigned int fd,
500                                       struct linux_dirent64 __user *dirent,
501                                       unsigned int count);
502 asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
503                                     unsigned int nr_segs, unsigned int flags);
504 asmlinkage long compat_sys_open(const char __user *filename, int flags,
505                                 umode_t mode);
506 asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
507                                   int flags, umode_t mode);
508 asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
509                                              struct file_handle __user *handle,
510                                              int flags);
511 asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,
512                                     compat_ulong_t __user *outp,
513                                     compat_ulong_t __user *exp,
514                                     struct compat_timespec __user *tsp,
515                                     void __user *sig);
516 asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
517                                  unsigned int nfds,
518                                  struct compat_timespec __user *tsp,
519                                  const compat_sigset_t __user *sigmask,
520                                  compat_size_t sigsetsize);
521 asmlinkage long compat_sys_signalfd4(int ufd,
522                                      const compat_sigset_t __user *sigmask,
523                                      compat_size_t sigsetsize, int flags);
524 asmlinkage long compat_sys_get_mempolicy(int __user *policy,
525                                          compat_ulong_t __user *nmask,
526                                          compat_ulong_t maxnode,
527                                          compat_ulong_t addr,
528                                          compat_ulong_t flags);
529 asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
530                                          compat_ulong_t maxnode);
531 asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
532                                  compat_ulong_t mode,
533                                  compat_ulong_t __user *nmask,
534                                  compat_ulong_t maxnode, compat_ulong_t flags);
535
536 asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
537                                       char __user *optval, unsigned int optlen);
538 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
539                                    unsigned flags);
540 asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
541                                     unsigned vlen, unsigned int flags);
542 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
543                                    unsigned int flags);
544 asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len,
545                                 unsigned flags);
546 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
547                             unsigned flags, struct sockaddr __user *addr,
548                             int __user *addrlen);
549 asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
550                                     unsigned vlen, unsigned int flags,
551                                     struct compat_timespec __user *timeout);
552 asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
553                                      struct compat_timespec __user *rmtp);
554 asmlinkage long compat_sys_getitimer(int which,
555                                      struct compat_itimerval __user *it);
556 asmlinkage long compat_sys_setitimer(int which,
557                                      struct compat_itimerval __user *in,
558                                      struct compat_itimerval __user *out);
559 asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
560 asmlinkage long compat_sys_setrlimit(unsigned int resource,
561                                      struct compat_rlimit __user *rlim);
562 asmlinkage long compat_sys_getrlimit(unsigned int resource,
563                                      struct compat_rlimit __user *rlim);
564 asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
565 asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
566                                      unsigned int len,
567                                      compat_ulong_t __user *user_mask_ptr);
568 asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
569                                      unsigned int len,
570                                      compat_ulong_t __user *user_mask_ptr);
571 asmlinkage long compat_sys_timer_create(clockid_t which_clock,
572                         struct compat_sigevent __user *timer_event_spec,
573                         timer_t __user *created_timer_id);
574 asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags,
575                                          struct compat_itimerspec __user *new,
576                                          struct compat_itimerspec __user *old);
577 asmlinkage long compat_sys_timer_gettime(timer_t timer_id,
578                                  struct compat_itimerspec __user *setting);
579 asmlinkage long compat_sys_clock_settime(clockid_t which_clock,
580                                          struct compat_timespec __user *tp);
581 asmlinkage long compat_sys_clock_gettime(clockid_t which_clock,
582                                          struct compat_timespec __user *tp);
583 asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock,
584                                          struct compat_timex __user *tp);
585 asmlinkage long compat_sys_clock_getres(clockid_t which_clock,
586                                         struct compat_timespec __user *tp);
587 asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
588                                            struct compat_timespec __user *rqtp,
589                                            struct compat_timespec __user *rmtp);
590 asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese,
591                 struct compat_siginfo __user *uinfo,
592                 struct compat_timespec __user *uts, compat_size_t sigsetsize);
593 asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
594                                          compat_size_t sigsetsize);
595 asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
596 asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
597                                  unsigned long arg);
598 asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
599                 struct compat_timespec __user *utime, u32 __user *uaddr2,
600                 u32 val3);
601 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
602                                       char __user *optval, int __user *optlen);
603 asmlinkage long compat_sys_kexec_load(unsigned long entry,
604                                       unsigned long nr_segments,
605                                       struct compat_kexec_segment __user *,
606                                       unsigned long flags);
607 asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes,
608                         const struct compat_mq_attr __user *u_mqstat,
609                         struct compat_mq_attr __user *u_omqstat);
610 asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
611                         const struct compat_sigevent __user *u_notification);
612 asmlinkage long compat_sys_mq_open(const char __user *u_name,
613                         int oflag, compat_mode_t mode,
614                         struct compat_mq_attr __user *u_attr);
615 asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes,
616                         const char __user *u_msg_ptr,
617                         size_t msg_len, unsigned int msg_prio,
618                         const struct compat_timespec __user *u_abs_timeout);
619 asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes,
620                         char __user *u_msg_ptr,
621                         size_t msg_len, unsigned int __user *u_msg_prio,
622                         const struct compat_timespec __user *u_abs_timeout);
623 asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
624 asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
625
626 extern ssize_t compat_rw_copy_check_uvector(int type,
627                 const struct compat_iovec __user *uvector,
628                 unsigned long nr_segs,
629                 unsigned long fast_segs, struct iovec *fast_pointer,
630                 struct iovec **ret_pointer);
631
632 extern void __user *compat_alloc_user_space(unsigned long len);
633
634 asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid,
635                 const struct compat_iovec __user *lvec,
636                 unsigned long liovcnt, const struct compat_iovec __user *rvec,
637                 unsigned long riovcnt, unsigned long flags);
638 asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
639                 const struct compat_iovec __user *lvec,
640                 unsigned long liovcnt, const struct compat_iovec __user *rvec,
641                 unsigned long riovcnt, unsigned long flags);
642
643 asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
644                                     compat_off_t __user *offset, compat_size_t count);
645 #ifdef CONFIG_GENERIC_SIGALTSTACK
646 asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr,
647                                        compat_stack_t __user *uoss_ptr);
648
649 int compat_restore_altstack(const compat_stack_t __user *uss);
650 int __compat_save_altstack(compat_stack_t __user *, unsigned long);
651 #endif
652
653 asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid,
654                                                  struct compat_timespec __user *interval);
655
656 #else
657
658 #define is_compat_task() (0)
659
660 #endif /* CONFIG_COMPAT */
661 #endif /* _LINUX_COMPAT_H */