[PATCH v3] ipc: provide generic compat versions of IPC syscalls
[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 #define compat_jiffies_to_clock_t(x)    \
23                 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
24
25 typedef __compat_uid32_t        compat_uid_t;
26 typedef __compat_gid32_t        compat_gid_t;
27
28 struct compat_sel_arg_struct;
29 struct rusage;
30
31 struct compat_itimerspec {
32         struct compat_timespec it_interval;
33         struct compat_timespec it_value;
34 };
35
36 struct compat_utimbuf {
37         compat_time_t           actime;
38         compat_time_t           modtime;
39 };
40
41 struct compat_itimerval {
42         struct compat_timeval   it_interval;
43         struct compat_timeval   it_value;
44 };
45
46 struct compat_tms {
47         compat_clock_t          tms_utime;
48         compat_clock_t          tms_stime;
49         compat_clock_t          tms_cutime;
50         compat_clock_t          tms_cstime;
51 };
52
53 struct compat_timex {
54         compat_uint_t modes;
55         compat_long_t offset;
56         compat_long_t freq;
57         compat_long_t maxerror;
58         compat_long_t esterror;
59         compat_int_t status;
60         compat_long_t constant;
61         compat_long_t precision;
62         compat_long_t tolerance;
63         struct compat_timeval time;
64         compat_long_t tick;
65         compat_long_t ppsfreq;
66         compat_long_t jitter;
67         compat_int_t shift;
68         compat_long_t stabil;
69         compat_long_t jitcnt;
70         compat_long_t calcnt;
71         compat_long_t errcnt;
72         compat_long_t stbcnt;
73         compat_int_t tai;
74
75         compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
76         compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
77         compat_int_t:32; compat_int_t:32; compat_int_t:32;
78 };
79
80 #define _COMPAT_NSIG_WORDS      (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
81
82 typedef struct {
83         compat_sigset_word      sig[_COMPAT_NSIG_WORDS];
84 } compat_sigset_t;
85
86 extern int get_compat_timespec(struct timespec *,
87                                const struct compat_timespec __user *);
88 extern int put_compat_timespec(const struct timespec *,
89                                struct compat_timespec __user *);
90
91 struct compat_iovec {
92         compat_uptr_t   iov_base;
93         compat_size_t   iov_len;
94 };
95
96 struct compat_rlimit {
97         compat_ulong_t  rlim_cur;
98         compat_ulong_t  rlim_max;
99 };
100
101 struct compat_rusage {
102         struct compat_timeval ru_utime;
103         struct compat_timeval ru_stime;
104         compat_long_t   ru_maxrss;
105         compat_long_t   ru_ixrss;
106         compat_long_t   ru_idrss;
107         compat_long_t   ru_isrss;
108         compat_long_t   ru_minflt;
109         compat_long_t   ru_majflt;
110         compat_long_t   ru_nswap;
111         compat_long_t   ru_inblock;
112         compat_long_t   ru_oublock;
113         compat_long_t   ru_msgsnd;
114         compat_long_t   ru_msgrcv;
115         compat_long_t   ru_nsignals;
116         compat_long_t   ru_nvcsw;
117         compat_long_t   ru_nivcsw;
118 };
119
120 extern int put_compat_rusage(const struct rusage *,
121                              struct compat_rusage __user *);
122
123 struct compat_siginfo;
124
125 extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
126                 struct compat_siginfo __user *, int,
127                 struct compat_rusage __user *);
128
129 struct compat_dirent {
130         u32             d_ino;
131         compat_off_t    d_off;
132         u16             d_reclen;
133         char            d_name[256];
134 };
135
136 struct compat_ustat {
137         compat_daddr_t          f_tfree;
138         compat_ino_t            f_tinode;
139         char                    f_fname[6];
140         char                    f_fpack[6];
141 };
142
143 typedef union compat_sigval {
144         compat_int_t    sival_int;
145         compat_uptr_t   sival_ptr;
146 } compat_sigval_t;
147
148 #define COMPAT_SIGEV_PAD_SIZE   ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
149
150 typedef struct compat_sigevent {
151         compat_sigval_t sigev_value;
152         compat_int_t sigev_signo;
153         compat_int_t sigev_notify;
154         union {
155                 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
156                 compat_int_t _tid;
157
158                 struct {
159                         compat_uptr_t _function;
160                         compat_uptr_t _attribute;
161                 } _sigev_thread;
162         } _sigev_un;
163 } compat_sigevent_t;
164
165 struct compat_ifmap {
166         compat_ulong_t mem_start;
167         compat_ulong_t mem_end;
168         unsigned short base_addr;
169         unsigned char irq;
170         unsigned char dma;
171         unsigned char port;
172 };
173
174 struct compat_if_settings {
175         unsigned int type;      /* Type of physical device or protocol */
176         unsigned int size;      /* Size of the data allocated by the caller */
177         compat_uptr_t ifs_ifsu; /* union of pointers */
178 };
179
180 struct compat_ifreq {
181         union {
182                 char    ifrn_name[IFNAMSIZ];    /* if name, e.g. "en0" */
183         } ifr_ifrn;
184         union {
185                 struct  sockaddr ifru_addr;
186                 struct  sockaddr ifru_dstaddr;
187                 struct  sockaddr ifru_broadaddr;
188                 struct  sockaddr ifru_netmask;
189                 struct  sockaddr ifru_hwaddr;
190                 short   ifru_flags;
191                 compat_int_t    ifru_ivalue;
192                 compat_int_t    ifru_mtu;
193                 struct  compat_ifmap ifru_map;
194                 char    ifru_slave[IFNAMSIZ];   /* Just fits the size */
195                 char    ifru_newname[IFNAMSIZ];
196                 compat_caddr_t  ifru_data;
197                 struct  compat_if_settings ifru_settings;
198         } ifr_ifru;
199 };
200
201 struct compat_ifconf {
202         compat_int_t    ifc_len;                /* size of buffer */
203         compat_caddr_t  ifcbuf;
204 };
205
206 struct compat_robust_list {
207         compat_uptr_t                   next;
208 };
209
210 struct compat_robust_list_head {
211         struct compat_robust_list       list;
212         compat_long_t                   futex_offset;
213         compat_uptr_t                   list_op_pending;
214 };
215
216 struct compat_statfs;
217 struct compat_statfs64;
218 struct compat_old_linux_dirent;
219 struct compat_linux_dirent;
220 struct linux_dirent64;
221 struct compat_msghdr;
222 struct compat_mmsghdr;
223 struct compat_sysinfo;
224 struct compat_sysctl_args;
225 struct compat_kexec_segment;
226 struct compat_mq_attr;
227 struct compat_msgbuf;
228
229 extern void compat_exit_robust_list(struct task_struct *curr);
230
231 asmlinkage long
232 compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
233                            compat_size_t len);
234 asmlinkage long
235 compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
236                            compat_size_t __user *len_ptr);
237
238 #ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPC
239 long compat_sys_semctl(int first, int second, int third, void __user *uptr);
240 long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
241 long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
242                 int version, void __user *uptr);
243 long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
244                 void __user *uptr);
245 #else
246 long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
247 long compat_sys_msgsnd(int msqid, struct compat_msgbuf __user *msgp,
248                 size_t msgsz, int msgflg);
249 long compat_sys_msgrcv(int msqid, struct compat_msgbuf __user *msgp,
250                 size_t msgsz, long msgtyp, int msgflg);
251 long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
252 #endif
253 long compat_sys_msgctl(int first, int second, void __user *uptr);
254 long compat_sys_shmctl(int first, int second, void __user *uptr);
255 long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
256                 unsigned nsems, const struct compat_timespec __user *timeout);
257 asmlinkage long compat_sys_keyctl(u32 option,
258                               u32 arg2, u32 arg3, u32 arg4, u32 arg5);
259 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
260
261 asmlinkage ssize_t compat_sys_readv(unsigned long fd,
262                 const struct compat_iovec __user *vec, unsigned long vlen);
263 asmlinkage ssize_t compat_sys_writev(unsigned long fd,
264                 const struct compat_iovec __user *vec, unsigned long vlen);
265 asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
266                 const struct compat_iovec __user *vec,
267                 unsigned long vlen, u32 pos_low, u32 pos_high);
268 asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
269                 const struct compat_iovec __user *vec,
270                 unsigned long vlen, u32 pos_low, u32 pos_high);
271
272 int compat_do_execve(char *filename, compat_uptr_t __user *argv,
273                      compat_uptr_t __user *envp, struct pt_regs *regs);
274
275 asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
276                 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
277                 struct compat_timeval __user *tvp);
278
279 asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
280
281 asmlinkage long compat_sys_wait4(compat_pid_t pid,
282                                  compat_uint_t __user *stat_addr, int options,
283                                  struct compat_rusage __user *ru);
284
285 #define BITS_PER_COMPAT_LONG    (8*sizeof(compat_long_t))
286
287 #define BITS_TO_COMPAT_LONGS(bits) \
288         (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
289
290 long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
291                        unsigned long bitmap_size);
292 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
293                        unsigned long bitmap_size);
294 int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
295 int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
296 int get_compat_sigevent(struct sigevent *event,
297                 const struct compat_sigevent __user *u_event);
298 long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
299                                   struct compat_siginfo __user *uinfo);
300
301 static inline int compat_timeval_compare(struct compat_timeval *lhs,
302                                         struct compat_timeval *rhs)
303 {
304         if (lhs->tv_sec < rhs->tv_sec)
305                 return -1;
306         if (lhs->tv_sec > rhs->tv_sec)
307                 return 1;
308         return lhs->tv_usec - rhs->tv_usec;
309 }
310
311 static inline int compat_timespec_compare(struct compat_timespec *lhs,
312                                         struct compat_timespec *rhs)
313 {
314         if (lhs->tv_sec < rhs->tv_sec)
315                 return -1;
316         if (lhs->tv_sec > rhs->tv_sec)
317                 return 1;
318         return lhs->tv_nsec - rhs->tv_nsec;
319 }
320
321 extern int get_compat_itimerspec(struct itimerspec *dst,
322                                  const struct compat_itimerspec __user *src);
323 extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
324                                  const struct itimerspec *src);
325
326 asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
327                 struct timezone __user *tz);
328 asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
329                 struct timezone __user *tz);
330
331 asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
332
333 extern int compat_printk(const char *fmt, ...);
334 extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
335
336 asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
337                 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
338                 const compat_ulong_t __user *new_nodes);
339
340 extern int compat_ptrace_request(struct task_struct *child,
341                                  compat_long_t request,
342                                  compat_ulong_t addr, compat_ulong_t data);
343
344 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
345                                compat_ulong_t addr, compat_ulong_t data);
346 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
347                                   compat_long_t addr, compat_long_t data);
348
349 /*
350  * epoll (fs/eventpoll.c) compat bits follow ...
351  */
352 struct epoll_event;
353 #define compat_epoll_event      epoll_event
354 asmlinkage long compat_sys_epoll_pwait(int epfd,
355                         struct compat_epoll_event __user *events,
356                         int maxevents, int timeout,
357                         const compat_sigset_t __user *sigmask,
358                         compat_size_t sigsetsize);
359
360 asmlinkage long compat_sys_utime(const char __user *filename,
361                                  struct compat_utimbuf __user *t);
362 asmlinkage long compat_sys_utimensat(unsigned int dfd,
363                                      const char __user *filename,
364                                      struct compat_timespec __user *t,
365                                      int flags);
366
367 asmlinkage long compat_sys_time(compat_time_t __user *tloc);
368 asmlinkage long compat_sys_stime(compat_time_t __user *tptr);
369 asmlinkage long compat_sys_signalfd(int ufd,
370                                     const compat_sigset_t __user *sigmask,
371                                     compat_size_t sigsetsize);
372 asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
373                                    const struct compat_itimerspec __user *utmr,
374                                    struct compat_itimerspec __user *otmr);
375 asmlinkage long compat_sys_timerfd_gettime(int ufd,
376                                    struct compat_itimerspec __user *otmr);
377
378 asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,
379                                       __u32 __user *pages,
380                                       const int __user *nodes,
381                                       int __user *status,
382                                       int flags);
383 asmlinkage long compat_sys_futimesat(unsigned int dfd,
384                                      const char __user *filename,
385                                      struct compat_timeval __user *t);
386 asmlinkage long compat_sys_utimes(const char __user *filename,
387                                   struct compat_timeval __user *t);
388 asmlinkage long compat_sys_newstat(const char __user *filename,
389                                    struct compat_stat __user *statbuf);
390 asmlinkage long compat_sys_newlstat(const char __user *filename,
391                                     struct compat_stat __user *statbuf);
392 asmlinkage long compat_sys_newfstatat(unsigned int dfd,
393                                       const char __user *filename,
394                                       struct compat_stat __user *statbuf,
395                                       int flag);
396 asmlinkage long compat_sys_newfstat(unsigned int fd,
397                                     struct compat_stat __user *statbuf);
398 asmlinkage long compat_sys_statfs(const char __user *pathname,
399                                   struct compat_statfs __user *buf);
400 asmlinkage long compat_sys_fstatfs(unsigned int fd,
401                                    struct compat_statfs __user *buf);
402 asmlinkage long compat_sys_statfs64(const char __user *pathname,
403                                     compat_size_t sz,
404                                     struct compat_statfs64 __user *buf);
405 asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
406                                      struct compat_statfs64 __user *buf);
407 asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
408                                    unsigned long arg);
409 asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
410                                  unsigned long arg);
411 asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
412 asmlinkage long compat_sys_io_getevents(aio_context_t ctx_id,
413                                         unsigned long min_nr,
414                                         unsigned long nr,
415                                         struct io_event __user *events,
416                                         struct compat_timespec __user *timeout);
417 asmlinkage long compat_sys_io_submit(aio_context_t ctx_id, int nr,
418                                      u32 __user *iocb);
419 asmlinkage long compat_sys_mount(const char __user *dev_name,
420                                  const char __user *dir_name,
421                                  const char __user *type, unsigned long flags,
422                                  const void __user *data);
423 asmlinkage long compat_sys_old_readdir(unsigned int fd,
424                                        struct compat_old_linux_dirent __user *,
425                                        unsigned int count);
426 asmlinkage long compat_sys_getdents(unsigned int fd,
427                                     struct compat_linux_dirent __user *dirent,
428                                     unsigned int count);
429 asmlinkage long compat_sys_getdents64(unsigned int fd,
430                                       struct linux_dirent64 __user *dirent,
431                                       unsigned int count);
432 asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
433                                     unsigned int nr_segs, unsigned int flags);
434 asmlinkage long compat_sys_open(const char __user *filename, int flags,
435                                 umode_t mode);
436 asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
437                                   int flags, umode_t mode);
438 asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
439                                              struct file_handle __user *handle,
440                                              int flags);
441 asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,
442                                     compat_ulong_t __user *outp,
443                                     compat_ulong_t __user *exp,
444                                     struct compat_timespec __user *tsp,
445                                     void __user *sig);
446 asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
447                                  unsigned int nfds,
448                                  struct compat_timespec __user *tsp,
449                                  const compat_sigset_t __user *sigmask,
450                                  compat_size_t sigsetsize);
451 asmlinkage long compat_sys_signalfd4(int ufd,
452                                      const compat_sigset_t __user *sigmask,
453                                      compat_size_t sigsetsize, int flags);
454 asmlinkage long compat_sys_get_mempolicy(int __user *policy,
455                                          compat_ulong_t __user *nmask,
456                                          compat_ulong_t maxnode,
457                                          compat_ulong_t addr,
458                                          compat_ulong_t flags);
459 asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
460                                          compat_ulong_t maxnode);
461 asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
462                                  compat_ulong_t mode,
463                                  compat_ulong_t __user *nmask,
464                                  compat_ulong_t maxnode, compat_ulong_t flags);
465
466 asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
467                                       char __user *optval, unsigned int optlen);
468 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
469                                    unsigned flags);
470 asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
471                                     unsigned vlen, unsigned int flags);
472 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
473                                    unsigned int flags);
474 asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len,
475                                 unsigned flags);
476 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
477                             unsigned flags, struct sockaddr __user *addr,
478                             int __user *addrlen);
479 asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
480                                     unsigned vlen, unsigned int flags,
481                                     struct compat_timespec __user *timeout);
482 asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
483                                      struct compat_timespec __user *rmtp);
484 asmlinkage long compat_sys_getitimer(int which,
485                                      struct compat_itimerval __user *it);
486 asmlinkage long compat_sys_setitimer(int which,
487                                      struct compat_itimerval __user *in,
488                                      struct compat_itimerval __user *out);
489 asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
490 asmlinkage long compat_sys_setrlimit(unsigned int resource,
491                                      struct compat_rlimit __user *rlim);
492 asmlinkage long compat_sys_getrlimit(unsigned int resource,
493                                      struct compat_rlimit __user *rlim);
494 asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
495 asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
496                                      unsigned int len,
497                                      compat_ulong_t __user *user_mask_ptr);
498 asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
499                                      unsigned int len,
500                                      compat_ulong_t __user *user_mask_ptr);
501 asmlinkage long compat_sys_timer_create(clockid_t which_clock,
502                         struct compat_sigevent __user *timer_event_spec,
503                         timer_t __user *created_timer_id);
504 asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags,
505                                          struct compat_itimerspec __user *new,
506                                          struct compat_itimerspec __user *old);
507 asmlinkage long compat_sys_timer_gettime(timer_t timer_id,
508                                  struct compat_itimerspec __user *setting);
509 asmlinkage long compat_sys_clock_settime(clockid_t which_clock,
510                                          struct compat_timespec __user *tp);
511 asmlinkage long compat_sys_clock_gettime(clockid_t which_clock,
512                                          struct compat_timespec __user *tp);
513 asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock,
514                                          struct compat_timex __user *tp);
515 asmlinkage long compat_sys_clock_getres(clockid_t which_clock,
516                                         struct compat_timespec __user *tp);
517 asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
518                                            struct compat_timespec __user *rqtp,
519                                            struct compat_timespec __user *rmtp);
520 asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese,
521                 struct compat_siginfo __user *uinfo,
522                 struct compat_timespec __user *uts, compat_size_t sigsetsize);
523 asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
524                                          compat_size_t sigsetsize);
525 asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
526 asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
527                                  unsigned long arg);
528 asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
529                 struct compat_timespec __user *utime, u32 __user *uaddr2,
530                 u32 val3);
531 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
532                                       char __user *optval, int __user *optlen);
533 asmlinkage long compat_sys_kexec_load(unsigned long entry,
534                                       unsigned long nr_segments,
535                                       struct compat_kexec_segment __user *,
536                                       unsigned long flags);
537 asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes,
538                         const struct compat_mq_attr __user *u_mqstat,
539                         struct compat_mq_attr __user *u_omqstat);
540 asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
541                         const struct compat_sigevent __user *u_notification);
542 asmlinkage long compat_sys_mq_open(const char __user *u_name,
543                         int oflag, compat_mode_t mode,
544                         struct compat_mq_attr __user *u_attr);
545 asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes,
546                         const char __user *u_msg_ptr,
547                         size_t msg_len, unsigned int msg_prio,
548                         const struct compat_timespec __user *u_abs_timeout);
549 asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes,
550                         char __user *u_msg_ptr,
551                         size_t msg_len, unsigned int __user *u_msg_prio,
552                         const struct compat_timespec __user *u_abs_timeout);
553 asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
554 asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
555
556 extern ssize_t compat_rw_copy_check_uvector(int type,
557                 const struct compat_iovec __user *uvector,
558                 unsigned long nr_segs,
559                 unsigned long fast_segs, struct iovec *fast_pointer,
560                 struct iovec **ret_pointer,
561                 int check_access);
562
563 extern void __user *compat_alloc_user_space(unsigned long len);
564
565 asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid,
566                 const struct compat_iovec __user *lvec,
567                 unsigned long liovcnt, const struct compat_iovec __user *rvec,
568                 unsigned long riovcnt, unsigned long flags);
569 asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
570                 const struct compat_iovec __user *lvec,
571                 unsigned long liovcnt, const struct compat_iovec __user *rvec,
572                 unsigned long riovcnt, unsigned long flags);
573
574 #else
575
576 #define is_compat_task() (0)
577
578 #endif /* CONFIG_COMPAT */
579 #endif /* _LINUX_COMPAT_H */