ipc: use Kconfig options for __ARCH_WANT_[COMPAT_]IPC_PARSE_VERSION
[linux-3.10.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 #define compat_jiffies_to_clock_t(x)    \
27                 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
28
29 typedef __compat_uid32_t        compat_uid_t;
30 typedef __compat_gid32_t        compat_gid_t;
31
32 struct compat_sel_arg_struct;
33 struct rusage;
34
35 struct compat_itimerspec {
36         struct compat_timespec it_interval;
37         struct compat_timespec it_value;
38 };
39
40 struct compat_utimbuf {
41         compat_time_t           actime;
42         compat_time_t           modtime;
43 };
44
45 struct compat_itimerval {
46         struct compat_timeval   it_interval;
47         struct compat_timeval   it_value;
48 };
49
50 struct compat_tms {
51         compat_clock_t          tms_utime;
52         compat_clock_t          tms_stime;
53         compat_clock_t          tms_cutime;
54         compat_clock_t          tms_cstime;
55 };
56
57 struct compat_timex {
58         compat_uint_t modes;
59         compat_long_t offset;
60         compat_long_t freq;
61         compat_long_t maxerror;
62         compat_long_t esterror;
63         compat_int_t status;
64         compat_long_t constant;
65         compat_long_t precision;
66         compat_long_t tolerance;
67         struct compat_timeval time;
68         compat_long_t tick;
69         compat_long_t ppsfreq;
70         compat_long_t jitter;
71         compat_int_t shift;
72         compat_long_t stabil;
73         compat_long_t jitcnt;
74         compat_long_t calcnt;
75         compat_long_t errcnt;
76         compat_long_t stbcnt;
77         compat_int_t tai;
78
79         compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
80         compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
81         compat_int_t:32; compat_int_t:32; compat_int_t:32;
82 };
83
84 #define _COMPAT_NSIG_WORDS      (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
85
86 typedef struct {
87         compat_sigset_word      sig[_COMPAT_NSIG_WORDS];
88 } compat_sigset_t;
89
90 /*
91  * These functions operate strictly on struct compat_time*
92  */
93 extern int get_compat_timespec(struct timespec *,
94                                const struct compat_timespec __user *);
95 extern int put_compat_timespec(const struct timespec *,
96                                struct compat_timespec __user *);
97 extern int get_compat_timeval(struct timeval *,
98                               const struct compat_timeval __user *);
99 extern int put_compat_timeval(const struct timeval *,
100                               struct compat_timeval __user *);
101 /*
102  * These functions operate on 32- or 64-bit specs depending on
103  * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments and the
104  * naming as compat_get/put_ rather than get/put_compat_.
105  */
106 extern int compat_get_timespec(struct timespec *, const void __user *);
107 extern int compat_put_timespec(const struct timespec *, void __user *);
108 extern int compat_get_timeval(struct timeval *, const void __user *);
109 extern int compat_put_timeval(const struct timeval *, void __user *);
110
111 struct compat_iovec {
112         compat_uptr_t   iov_base;
113         compat_size_t   iov_len;
114 };
115
116 struct compat_rlimit {
117         compat_ulong_t  rlim_cur;
118         compat_ulong_t  rlim_max;
119 };
120
121 struct compat_rusage {
122         struct compat_timeval ru_utime;
123         struct compat_timeval ru_stime;
124         compat_long_t   ru_maxrss;
125         compat_long_t   ru_ixrss;
126         compat_long_t   ru_idrss;
127         compat_long_t   ru_isrss;
128         compat_long_t   ru_minflt;
129         compat_long_t   ru_majflt;
130         compat_long_t   ru_nswap;
131         compat_long_t   ru_inblock;
132         compat_long_t   ru_oublock;
133         compat_long_t   ru_msgsnd;
134         compat_long_t   ru_msgrcv;
135         compat_long_t   ru_nsignals;
136         compat_long_t   ru_nvcsw;
137         compat_long_t   ru_nivcsw;
138 };
139
140 extern int put_compat_rusage(const struct rusage *,
141                              struct compat_rusage __user *);
142
143 struct compat_siginfo;
144
145 extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
146                 struct compat_siginfo __user *, int,
147                 struct compat_rusage __user *);
148
149 struct compat_dirent {
150         u32             d_ino;
151         compat_off_t    d_off;
152         u16             d_reclen;
153         char            d_name[256];
154 };
155
156 struct compat_ustat {
157         compat_daddr_t          f_tfree;
158         compat_ino_t            f_tinode;
159         char                    f_fname[6];
160         char                    f_fpack[6];
161 };
162
163 typedef union compat_sigval {
164         compat_int_t    sival_int;
165         compat_uptr_t   sival_ptr;
166 } compat_sigval_t;
167
168 #define COMPAT_SIGEV_PAD_SIZE   ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
169
170 typedef struct compat_sigevent {
171         compat_sigval_t sigev_value;
172         compat_int_t sigev_signo;
173         compat_int_t sigev_notify;
174         union {
175                 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
176                 compat_int_t _tid;
177
178                 struct {
179                         compat_uptr_t _function;
180                         compat_uptr_t _attribute;
181                 } _sigev_thread;
182         } _sigev_un;
183 } compat_sigevent_t;
184
185 struct compat_ifmap {
186         compat_ulong_t mem_start;
187         compat_ulong_t mem_end;
188         unsigned short base_addr;
189         unsigned char irq;
190         unsigned char dma;
191         unsigned char port;
192 };
193
194 struct compat_if_settings {
195         unsigned int type;      /* Type of physical device or protocol */
196         unsigned int size;      /* Size of the data allocated by the caller */
197         compat_uptr_t ifs_ifsu; /* union of pointers */
198 };
199
200 struct compat_ifreq {
201         union {
202                 char    ifrn_name[IFNAMSIZ];    /* if name, e.g. "en0" */
203         } ifr_ifrn;
204         union {
205                 struct  sockaddr ifru_addr;
206                 struct  sockaddr ifru_dstaddr;
207                 struct  sockaddr ifru_broadaddr;
208                 struct  sockaddr ifru_netmask;
209                 struct  sockaddr ifru_hwaddr;
210                 short   ifru_flags;
211                 compat_int_t    ifru_ivalue;
212                 compat_int_t    ifru_mtu;
213                 struct  compat_ifmap ifru_map;
214                 char    ifru_slave[IFNAMSIZ];   /* Just fits the size */
215                 char    ifru_newname[IFNAMSIZ];
216                 compat_caddr_t  ifru_data;
217                 struct  compat_if_settings ifru_settings;
218         } ifr_ifru;
219 };
220
221 struct compat_ifconf {
222         compat_int_t    ifc_len;                /* size of buffer */
223         compat_caddr_t  ifcbuf;
224 };
225
226 struct compat_robust_list {
227         compat_uptr_t                   next;
228 };
229
230 struct compat_robust_list_head {
231         struct compat_robust_list       list;
232         compat_long_t                   futex_offset;
233         compat_uptr_t                   list_op_pending;
234 };
235
236 struct compat_statfs;
237 struct compat_statfs64;
238 struct compat_old_linux_dirent;
239 struct compat_linux_dirent;
240 struct linux_dirent64;
241 struct compat_msghdr;
242 struct compat_mmsghdr;
243 struct compat_sysinfo;
244 struct compat_sysctl_args;
245 struct compat_kexec_segment;
246 struct compat_mq_attr;
247 struct compat_msgbuf;
248
249 extern void compat_exit_robust_list(struct task_struct *curr);
250
251 asmlinkage long
252 compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
253                            compat_size_t len);
254 asmlinkage long
255 compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
256                            compat_size_t __user *len_ptr);
257
258 #ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPC
259 long compat_sys_semctl(int first, int second, int third, void __user *uptr);
260 long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
261 long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
262                 int version, void __user *uptr);
263 long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
264                 void __user *uptr);
265 #else
266 long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
267 long compat_sys_msgsnd(int msqid, struct compat_msgbuf __user *msgp,
268                 compat_ssize_t msgsz, int msgflg);
269 long compat_sys_msgrcv(int msqid, struct compat_msgbuf __user *msgp,
270                 compat_ssize_t msgsz, long msgtyp, int msgflg);
271 long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
272 #endif
273 long compat_sys_msgctl(int first, int second, void __user *uptr);
274 long compat_sys_shmctl(int first, int second, void __user *uptr);
275 long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
276                 unsigned nsems, const struct compat_timespec __user *timeout);
277 asmlinkage long compat_sys_keyctl(u32 option,
278                               u32 arg2, u32 arg3, u32 arg4, u32 arg5);
279 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
280
281 asmlinkage ssize_t compat_sys_readv(unsigned long fd,
282                 const struct compat_iovec __user *vec, unsigned long vlen);
283 asmlinkage ssize_t compat_sys_writev(unsigned long fd,
284                 const struct compat_iovec __user *vec, unsigned long vlen);
285 asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
286                 const struct compat_iovec __user *vec,
287                 unsigned long vlen, u32 pos_low, u32 pos_high);
288 asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
289                 const struct compat_iovec __user *vec,
290                 unsigned long vlen, u32 pos_low, u32 pos_high);
291
292 int compat_do_execve(char *filename, compat_uptr_t __user *argv,
293                      compat_uptr_t __user *envp, struct pt_regs *regs);
294
295 asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
296                 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
297                 struct compat_timeval __user *tvp);
298
299 asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
300
301 asmlinkage long compat_sys_wait4(compat_pid_t pid,
302                                  compat_uint_t __user *stat_addr, int options,
303                                  struct compat_rusage __user *ru);
304
305 #define BITS_PER_COMPAT_LONG    (8*sizeof(compat_long_t))
306
307 #define BITS_TO_COMPAT_LONGS(bits) \
308         (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
309
310 long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
311                        unsigned long bitmap_size);
312 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
313                        unsigned long bitmap_size);
314 int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
315 int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
316 int get_compat_sigevent(struct sigevent *event,
317                 const struct compat_sigevent __user *u_event);
318 long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
319                                   struct compat_siginfo __user *uinfo);
320
321 static inline int compat_timeval_compare(struct compat_timeval *lhs,
322                                         struct compat_timeval *rhs)
323 {
324         if (lhs->tv_sec < rhs->tv_sec)
325                 return -1;
326         if (lhs->tv_sec > rhs->tv_sec)
327                 return 1;
328         return lhs->tv_usec - rhs->tv_usec;
329 }
330
331 static inline int compat_timespec_compare(struct compat_timespec *lhs,
332                                         struct compat_timespec *rhs)
333 {
334         if (lhs->tv_sec < rhs->tv_sec)
335                 return -1;
336         if (lhs->tv_sec > rhs->tv_sec)
337                 return 1;
338         return lhs->tv_nsec - rhs->tv_nsec;
339 }
340
341 extern int get_compat_itimerspec(struct itimerspec *dst,
342                                  const struct compat_itimerspec __user *src);
343 extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
344                                  const struct itimerspec *src);
345
346 asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
347                 struct timezone __user *tz);
348 asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
349                 struct timezone __user *tz);
350
351 asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
352
353 extern int compat_printk(const char *fmt, ...);
354 extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
355
356 asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
357                 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
358                 const compat_ulong_t __user *new_nodes);
359
360 extern int compat_ptrace_request(struct task_struct *child,
361                                  compat_long_t request,
362                                  compat_ulong_t addr, compat_ulong_t data);
363
364 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
365                                compat_ulong_t addr, compat_ulong_t data);
366 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
367                                   compat_long_t addr, compat_long_t data);
368
369 /*
370  * epoll (fs/eventpoll.c) compat bits follow ...
371  */
372 struct epoll_event;
373 #define compat_epoll_event      epoll_event
374 asmlinkage long compat_sys_epoll_pwait(int epfd,
375                         struct compat_epoll_event __user *events,
376                         int maxevents, int timeout,
377                         const compat_sigset_t __user *sigmask,
378                         compat_size_t sigsetsize);
379
380 asmlinkage long compat_sys_utime(const char __user *filename,
381                                  struct compat_utimbuf __user *t);
382 asmlinkage long compat_sys_utimensat(unsigned int dfd,
383                                      const char __user *filename,
384                                      struct compat_timespec __user *t,
385                                      int flags);
386
387 asmlinkage long compat_sys_time(compat_time_t __user *tloc);
388 asmlinkage long compat_sys_stime(compat_time_t __user *tptr);
389 asmlinkage long compat_sys_signalfd(int ufd,
390                                     const compat_sigset_t __user *sigmask,
391                                     compat_size_t sigsetsize);
392 asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
393                                    const struct compat_itimerspec __user *utmr,
394                                    struct compat_itimerspec __user *otmr);
395 asmlinkage long compat_sys_timerfd_gettime(int ufd,
396                                    struct compat_itimerspec __user *otmr);
397
398 asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,
399                                       __u32 __user *pages,
400                                       const int __user *nodes,
401                                       int __user *status,
402                                       int flags);
403 asmlinkage long compat_sys_futimesat(unsigned int dfd,
404                                      const char __user *filename,
405                                      struct compat_timeval __user *t);
406 asmlinkage long compat_sys_utimes(const char __user *filename,
407                                   struct compat_timeval __user *t);
408 asmlinkage long compat_sys_newstat(const char __user *filename,
409                                    struct compat_stat __user *statbuf);
410 asmlinkage long compat_sys_newlstat(const char __user *filename,
411                                     struct compat_stat __user *statbuf);
412 asmlinkage long compat_sys_newfstatat(unsigned int dfd,
413                                       const char __user *filename,
414                                       struct compat_stat __user *statbuf,
415                                       int flag);
416 asmlinkage long compat_sys_newfstat(unsigned int fd,
417                                     struct compat_stat __user *statbuf);
418 asmlinkage long compat_sys_statfs(const char __user *pathname,
419                                   struct compat_statfs __user *buf);
420 asmlinkage long compat_sys_fstatfs(unsigned int fd,
421                                    struct compat_statfs __user *buf);
422 asmlinkage long compat_sys_statfs64(const char __user *pathname,
423                                     compat_size_t sz,
424                                     struct compat_statfs64 __user *buf);
425 asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
426                                      struct compat_statfs64 __user *buf);
427 asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
428                                    unsigned long arg);
429 asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
430                                  unsigned long arg);
431 asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
432 asmlinkage long compat_sys_io_getevents(aio_context_t ctx_id,
433                                         unsigned long min_nr,
434                                         unsigned long nr,
435                                         struct io_event __user *events,
436                                         struct compat_timespec __user *timeout);
437 asmlinkage long compat_sys_io_submit(aio_context_t ctx_id, int nr,
438                                      u32 __user *iocb);
439 asmlinkage long compat_sys_mount(const char __user *dev_name,
440                                  const char __user *dir_name,
441                                  const char __user *type, unsigned long flags,
442                                  const void __user *data);
443 asmlinkage long compat_sys_old_readdir(unsigned int fd,
444                                        struct compat_old_linux_dirent __user *,
445                                        unsigned int count);
446 asmlinkage long compat_sys_getdents(unsigned int fd,
447                                     struct compat_linux_dirent __user *dirent,
448                                     unsigned int count);
449 asmlinkage long compat_sys_getdents64(unsigned int fd,
450                                       struct linux_dirent64 __user *dirent,
451                                       unsigned int count);
452 asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
453                                     unsigned int nr_segs, unsigned int flags);
454 asmlinkage long compat_sys_open(const char __user *filename, int flags,
455                                 umode_t mode);
456 asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
457                                   int flags, umode_t mode);
458 asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
459                                              struct file_handle __user *handle,
460                                              int flags);
461 asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,
462                                     compat_ulong_t __user *outp,
463                                     compat_ulong_t __user *exp,
464                                     struct compat_timespec __user *tsp,
465                                     void __user *sig);
466 asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
467                                  unsigned int nfds,
468                                  struct compat_timespec __user *tsp,
469                                  const compat_sigset_t __user *sigmask,
470                                  compat_size_t sigsetsize);
471 asmlinkage long compat_sys_signalfd4(int ufd,
472                                      const compat_sigset_t __user *sigmask,
473                                      compat_size_t sigsetsize, int flags);
474 asmlinkage long compat_sys_get_mempolicy(int __user *policy,
475                                          compat_ulong_t __user *nmask,
476                                          compat_ulong_t maxnode,
477                                          compat_ulong_t addr,
478                                          compat_ulong_t flags);
479 asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
480                                          compat_ulong_t maxnode);
481 asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
482                                  compat_ulong_t mode,
483                                  compat_ulong_t __user *nmask,
484                                  compat_ulong_t maxnode, compat_ulong_t flags);
485
486 asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
487                                       char __user *optval, unsigned int optlen);
488 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
489                                    unsigned flags);
490 asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
491                                     unsigned vlen, unsigned int flags);
492 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
493                                    unsigned int flags);
494 asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len,
495                                 unsigned flags);
496 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
497                             unsigned flags, struct sockaddr __user *addr,
498                             int __user *addrlen);
499 asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
500                                     unsigned vlen, unsigned int flags,
501                                     struct compat_timespec __user *timeout);
502 asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
503                                      struct compat_timespec __user *rmtp);
504 asmlinkage long compat_sys_getitimer(int which,
505                                      struct compat_itimerval __user *it);
506 asmlinkage long compat_sys_setitimer(int which,
507                                      struct compat_itimerval __user *in,
508                                      struct compat_itimerval __user *out);
509 asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
510 asmlinkage long compat_sys_setrlimit(unsigned int resource,
511                                      struct compat_rlimit __user *rlim);
512 asmlinkage long compat_sys_getrlimit(unsigned int resource,
513                                      struct compat_rlimit __user *rlim);
514 asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
515 asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
516                                      unsigned int len,
517                                      compat_ulong_t __user *user_mask_ptr);
518 asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
519                                      unsigned int len,
520                                      compat_ulong_t __user *user_mask_ptr);
521 asmlinkage long compat_sys_timer_create(clockid_t which_clock,
522                         struct compat_sigevent __user *timer_event_spec,
523                         timer_t __user *created_timer_id);
524 asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags,
525                                          struct compat_itimerspec __user *new,
526                                          struct compat_itimerspec __user *old);
527 asmlinkage long compat_sys_timer_gettime(timer_t timer_id,
528                                  struct compat_itimerspec __user *setting);
529 asmlinkage long compat_sys_clock_settime(clockid_t which_clock,
530                                          struct compat_timespec __user *tp);
531 asmlinkage long compat_sys_clock_gettime(clockid_t which_clock,
532                                          struct compat_timespec __user *tp);
533 asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock,
534                                          struct compat_timex __user *tp);
535 asmlinkage long compat_sys_clock_getres(clockid_t which_clock,
536                                         struct compat_timespec __user *tp);
537 asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
538                                            struct compat_timespec __user *rqtp,
539                                            struct compat_timespec __user *rmtp);
540 asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese,
541                 struct compat_siginfo __user *uinfo,
542                 struct compat_timespec __user *uts, compat_size_t sigsetsize);
543 asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
544                                          compat_size_t sigsetsize);
545 asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
546 asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
547                                  unsigned long arg);
548 asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
549                 struct compat_timespec __user *utime, u32 __user *uaddr2,
550                 u32 val3);
551 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
552                                       char __user *optval, int __user *optlen);
553 asmlinkage long compat_sys_kexec_load(unsigned long entry,
554                                       unsigned long nr_segments,
555                                       struct compat_kexec_segment __user *,
556                                       unsigned long flags);
557 asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes,
558                         const struct compat_mq_attr __user *u_mqstat,
559                         struct compat_mq_attr __user *u_omqstat);
560 asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
561                         const struct compat_sigevent __user *u_notification);
562 asmlinkage long compat_sys_mq_open(const char __user *u_name,
563                         int oflag, compat_mode_t mode,
564                         struct compat_mq_attr __user *u_attr);
565 asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes,
566                         const char __user *u_msg_ptr,
567                         size_t msg_len, unsigned int msg_prio,
568                         const struct compat_timespec __user *u_abs_timeout);
569 asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes,
570                         char __user *u_msg_ptr,
571                         size_t msg_len, unsigned int __user *u_msg_prio,
572                         const struct compat_timespec __user *u_abs_timeout);
573 asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
574 asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
575
576 extern ssize_t compat_rw_copy_check_uvector(int type,
577                 const struct compat_iovec __user *uvector,
578                 unsigned long nr_segs,
579                 unsigned long fast_segs, struct iovec *fast_pointer,
580                 struct iovec **ret_pointer);
581
582 extern void __user *compat_alloc_user_space(unsigned long len);
583
584 asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid,
585                 const struct compat_iovec __user *lvec,
586                 unsigned long liovcnt, const struct compat_iovec __user *rvec,
587                 unsigned long riovcnt, unsigned long flags);
588 asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
589                 const struct compat_iovec __user *lvec,
590                 unsigned long liovcnt, const struct compat_iovec __user *rvec,
591                 unsigned long riovcnt, unsigned long flags);
592
593 #else
594
595 #define is_compat_task() (0)
596
597 #endif /* CONFIG_COMPAT */
598 #endif /* _LINUX_COMPAT_H */