burying unused conditionals
[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 #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 #ifndef compat_sigaltstack      /* we'll need that for MIPS */
72 typedef struct compat_sigaltstack {
73         compat_uptr_t                   ss_sp;
74         int                             ss_flags;
75         compat_size_t                   ss_size;
76 } compat_stack_t;
77 #endif
78
79 #define compat_jiffies_to_clock_t(x)    \
80                 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
81
82 typedef __compat_uid32_t        compat_uid_t;
83 typedef __compat_gid32_t        compat_gid_t;
84
85 struct compat_sel_arg_struct;
86 struct rusage;
87
88 struct compat_itimerspec {
89         struct compat_timespec it_interval;
90         struct compat_timespec it_value;
91 };
92
93 struct compat_utimbuf {
94         compat_time_t           actime;
95         compat_time_t           modtime;
96 };
97
98 struct compat_itimerval {
99         struct compat_timeval   it_interval;
100         struct compat_timeval   it_value;
101 };
102
103 struct compat_tms {
104         compat_clock_t          tms_utime;
105         compat_clock_t          tms_stime;
106         compat_clock_t          tms_cutime;
107         compat_clock_t          tms_cstime;
108 };
109
110 struct compat_timex {
111         compat_uint_t modes;
112         compat_long_t offset;
113         compat_long_t freq;
114         compat_long_t maxerror;
115         compat_long_t esterror;
116         compat_int_t status;
117         compat_long_t constant;
118         compat_long_t precision;
119         compat_long_t tolerance;
120         struct compat_timeval time;
121         compat_long_t tick;
122         compat_long_t ppsfreq;
123         compat_long_t jitter;
124         compat_int_t shift;
125         compat_long_t stabil;
126         compat_long_t jitcnt;
127         compat_long_t calcnt;
128         compat_long_t errcnt;
129         compat_long_t stbcnt;
130         compat_int_t tai;
131
132         compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
133         compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
134         compat_int_t:32; compat_int_t:32; compat_int_t:32;
135 };
136
137 #define _COMPAT_NSIG_WORDS      (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
138
139 typedef struct {
140         compat_sigset_word      sig[_COMPAT_NSIG_WORDS];
141 } compat_sigset_t;
142
143 struct compat_sigaction {
144 #ifndef __ARCH_HAS_ODD_SIGACTION
145         compat_uptr_t                   sa_handler;
146         compat_ulong_t                  sa_flags;
147 #else
148         compat_ulong_t                  sa_flags;
149         compat_uptr_t                   sa_handler;
150 #endif
151 #ifdef __ARCH_HAS_SA_RESTORER
152         compat_uptr_t                   sa_restorer;
153 #endif
154         compat_sigset_t                 sa_mask __packed;
155 };
156
157 /*
158  * These functions operate strictly on struct compat_time*
159  */
160 extern int get_compat_timespec(struct timespec *,
161                                const struct compat_timespec __user *);
162 extern int put_compat_timespec(const struct timespec *,
163                                struct compat_timespec __user *);
164 extern int get_compat_timeval(struct timeval *,
165                               const struct compat_timeval __user *);
166 extern int put_compat_timeval(const struct timeval *,
167                               struct compat_timeval __user *);
168 /*
169  * These functions operate on 32- or 64-bit specs depending on
170  * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments and the
171  * naming as compat_get/put_ rather than get/put_compat_.
172  */
173 extern int compat_get_timespec(struct timespec *, const void __user *);
174 extern int compat_put_timespec(const struct timespec *, void __user *);
175 extern int compat_get_timeval(struct timeval *, const void __user *);
176 extern int compat_put_timeval(const struct timeval *, void __user *);
177
178 struct compat_iovec {
179         compat_uptr_t   iov_base;
180         compat_size_t   iov_len;
181 };
182
183 struct compat_rlimit {
184         compat_ulong_t  rlim_cur;
185         compat_ulong_t  rlim_max;
186 };
187
188 struct compat_rusage {
189         struct compat_timeval ru_utime;
190         struct compat_timeval ru_stime;
191         compat_long_t   ru_maxrss;
192         compat_long_t   ru_ixrss;
193         compat_long_t   ru_idrss;
194         compat_long_t   ru_isrss;
195         compat_long_t   ru_minflt;
196         compat_long_t   ru_majflt;
197         compat_long_t   ru_nswap;
198         compat_long_t   ru_inblock;
199         compat_long_t   ru_oublock;
200         compat_long_t   ru_msgsnd;
201         compat_long_t   ru_msgrcv;
202         compat_long_t   ru_nsignals;
203         compat_long_t   ru_nvcsw;
204         compat_long_t   ru_nivcsw;
205 };
206
207 extern int put_compat_rusage(const struct rusage *,
208                              struct compat_rusage __user *);
209
210 struct compat_siginfo;
211
212 extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
213                 struct compat_siginfo __user *, int,
214                 struct compat_rusage __user *);
215
216 struct compat_dirent {
217         u32             d_ino;
218         compat_off_t    d_off;
219         u16             d_reclen;
220         char            d_name[256];
221 };
222
223 struct compat_ustat {
224         compat_daddr_t          f_tfree;
225         compat_ino_t            f_tinode;
226         char                    f_fname[6];
227         char                    f_fpack[6];
228 };
229
230 #define COMPAT_SIGEV_PAD_SIZE   ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
231
232 typedef struct compat_sigevent {
233         compat_sigval_t sigev_value;
234         compat_int_t sigev_signo;
235         compat_int_t sigev_notify;
236         union {
237                 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
238                 compat_int_t _tid;
239
240                 struct {
241                         compat_uptr_t _function;
242                         compat_uptr_t _attribute;
243                 } _sigev_thread;
244         } _sigev_un;
245 } compat_sigevent_t;
246
247 struct compat_ifmap {
248         compat_ulong_t mem_start;
249         compat_ulong_t mem_end;
250         unsigned short base_addr;
251         unsigned char irq;
252         unsigned char dma;
253         unsigned char port;
254 };
255
256 struct compat_if_settings {
257         unsigned int type;      /* Type of physical device or protocol */
258         unsigned int size;      /* Size of the data allocated by the caller */
259         compat_uptr_t ifs_ifsu; /* union of pointers */
260 };
261
262 struct compat_ifreq {
263         union {
264                 char    ifrn_name[IFNAMSIZ];    /* if name, e.g. "en0" */
265         } ifr_ifrn;
266         union {
267                 struct  sockaddr ifru_addr;
268                 struct  sockaddr ifru_dstaddr;
269                 struct  sockaddr ifru_broadaddr;
270                 struct  sockaddr ifru_netmask;
271                 struct  sockaddr ifru_hwaddr;
272                 short   ifru_flags;
273                 compat_int_t    ifru_ivalue;
274                 compat_int_t    ifru_mtu;
275                 struct  compat_ifmap ifru_map;
276                 char    ifru_slave[IFNAMSIZ];   /* Just fits the size */
277                 char    ifru_newname[IFNAMSIZ];
278                 compat_caddr_t  ifru_data;
279                 struct  compat_if_settings ifru_settings;
280         } ifr_ifru;
281 };
282
283 struct compat_ifconf {
284         compat_int_t    ifc_len;                /* size of buffer */
285         compat_caddr_t  ifcbuf;
286 };
287
288 struct compat_robust_list {
289         compat_uptr_t                   next;
290 };
291
292 struct compat_robust_list_head {
293         struct compat_robust_list       list;
294         compat_long_t                   futex_offset;
295         compat_uptr_t                   list_op_pending;
296 };
297
298 #ifdef CONFIG_COMPAT_OLD_SIGACTION
299 struct compat_old_sigaction {
300         compat_uptr_t                   sa_handler;
301         compat_old_sigset_t             sa_mask;
302         compat_ulong_t                  sa_flags;
303         compat_uptr_t                   sa_restorer;
304 };
305 #endif
306
307 struct compat_statfs;
308 struct compat_statfs64;
309 struct compat_old_linux_dirent;
310 struct compat_linux_dirent;
311 struct linux_dirent64;
312 struct compat_msghdr;
313 struct compat_mmsghdr;
314 struct compat_sysinfo;
315 struct compat_sysctl_args;
316 struct compat_kexec_segment;
317 struct compat_mq_attr;
318 struct compat_msgbuf;
319
320 extern void compat_exit_robust_list(struct task_struct *curr);
321
322 asmlinkage long
323 compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
324                            compat_size_t len);
325 asmlinkage long
326 compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
327                            compat_size_t __user *len_ptr);
328
329 #ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPC
330 long compat_sys_semctl(int first, int second, int third, void __user *uptr);
331 long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
332 long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
333                 int version, void __user *uptr);
334 long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
335                 void __user *uptr);
336 #else
337 long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
338 long compat_sys_msgsnd(int msqid, struct compat_msgbuf __user *msgp,
339                 compat_ssize_t msgsz, int msgflg);
340 long compat_sys_msgrcv(int msqid, struct compat_msgbuf __user *msgp,
341                 compat_ssize_t msgsz, long msgtyp, int msgflg);
342 long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
343 #endif
344 long compat_sys_msgctl(int first, int second, void __user *uptr);
345 long compat_sys_shmctl(int first, int second, void __user *uptr);
346 long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
347                 unsigned nsems, const struct compat_timespec __user *timeout);
348 asmlinkage long compat_sys_keyctl(u32 option,
349                               u32 arg2, u32 arg3, u32 arg4, u32 arg5);
350 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
351
352 asmlinkage ssize_t compat_sys_readv(unsigned long fd,
353                 const struct compat_iovec __user *vec, unsigned long vlen);
354 asmlinkage ssize_t compat_sys_writev(unsigned long fd,
355                 const struct compat_iovec __user *vec, unsigned long vlen);
356 asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
357                 const struct compat_iovec __user *vec,
358                 unsigned long vlen, u32 pos_low, u32 pos_high);
359 asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
360                 const struct compat_iovec __user *vec,
361                 unsigned long vlen, u32 pos_low, u32 pos_high);
362
363 asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
364                      const compat_uptr_t __user *envp);
365
366 asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
367                 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
368                 struct compat_timeval __user *tvp);
369
370 asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
371
372 asmlinkage long compat_sys_wait4(compat_pid_t pid,
373                                  compat_uint_t __user *stat_addr, int options,
374                                  struct compat_rusage __user *ru);
375
376 #define BITS_PER_COMPAT_LONG    (8*sizeof(compat_long_t))
377
378 #define BITS_TO_COMPAT_LONGS(bits) \
379         (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
380
381 long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
382                        unsigned long bitmap_size);
383 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
384                        unsigned long bitmap_size);
385 int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
386 int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
387 int get_compat_sigevent(struct sigevent *event,
388                 const struct compat_sigevent __user *u_event);
389 long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
390                                   struct compat_siginfo __user *uinfo);
391 #ifdef CONFIG_COMPAT_OLD_SIGACTION
392 asmlinkage long compat_sys_sigaction(int sig,
393                                    const struct compat_old_sigaction __user *act,
394                                    struct compat_old_sigaction __user *oact);
395 #endif
396
397 static inline int compat_timeval_compare(struct compat_timeval *lhs,
398                                         struct compat_timeval *rhs)
399 {
400         if (lhs->tv_sec < rhs->tv_sec)
401                 return -1;
402         if (lhs->tv_sec > rhs->tv_sec)
403                 return 1;
404         return lhs->tv_usec - rhs->tv_usec;
405 }
406
407 static inline int compat_timespec_compare(struct compat_timespec *lhs,
408                                         struct compat_timespec *rhs)
409 {
410         if (lhs->tv_sec < rhs->tv_sec)
411                 return -1;
412         if (lhs->tv_sec > rhs->tv_sec)
413                 return 1;
414         return lhs->tv_nsec - rhs->tv_nsec;
415 }
416
417 extern int get_compat_itimerspec(struct itimerspec *dst,
418                                  const struct compat_itimerspec __user *src);
419 extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
420                                  const struct itimerspec *src);
421
422 asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
423                 struct timezone __user *tz);
424 asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
425                 struct timezone __user *tz);
426
427 asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
428
429 extern int compat_printk(const char *fmt, ...);
430 extern void sigset_from_compat(sigset_t *set, const compat_sigset_t *compat);
431 extern void sigset_to_compat(compat_sigset_t *compat, const sigset_t *set);
432
433 asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
434                 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
435                 const compat_ulong_t __user *new_nodes);
436
437 extern int compat_ptrace_request(struct task_struct *child,
438                                  compat_long_t request,
439                                  compat_ulong_t addr, compat_ulong_t data);
440
441 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
442                                compat_ulong_t addr, compat_ulong_t data);
443 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
444                                   compat_long_t addr, compat_long_t data);
445
446 /*
447  * epoll (fs/eventpoll.c) compat bits follow ...
448  */
449 struct epoll_event;
450 #define compat_epoll_event      epoll_event
451 asmlinkage long compat_sys_epoll_pwait(int epfd,
452                         struct compat_epoll_event __user *events,
453                         int maxevents, int timeout,
454                         const compat_sigset_t __user *sigmask,
455                         compat_size_t sigsetsize);
456
457 asmlinkage long compat_sys_utime(const char __user *filename,
458                                  struct compat_utimbuf __user *t);
459 asmlinkage long compat_sys_utimensat(unsigned int dfd,
460                                      const char __user *filename,
461                                      struct compat_timespec __user *t,
462                                      int flags);
463
464 asmlinkage long compat_sys_time(compat_time_t __user *tloc);
465 asmlinkage long compat_sys_stime(compat_time_t __user *tptr);
466 asmlinkage long compat_sys_signalfd(int ufd,
467                                     const compat_sigset_t __user *sigmask,
468                                     compat_size_t sigsetsize);
469 asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
470                                    const struct compat_itimerspec __user *utmr,
471                                    struct compat_itimerspec __user *otmr);
472 asmlinkage long compat_sys_timerfd_gettime(int ufd,
473                                    struct compat_itimerspec __user *otmr);
474
475 asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,
476                                       __u32 __user *pages,
477                                       const int __user *nodes,
478                                       int __user *status,
479                                       int flags);
480 asmlinkage long compat_sys_futimesat(unsigned int dfd,
481                                      const char __user *filename,
482                                      struct compat_timeval __user *t);
483 asmlinkage long compat_sys_utimes(const char __user *filename,
484                                   struct compat_timeval __user *t);
485 asmlinkage long compat_sys_newstat(const char __user *filename,
486                                    struct compat_stat __user *statbuf);
487 asmlinkage long compat_sys_newlstat(const char __user *filename,
488                                     struct compat_stat __user *statbuf);
489 asmlinkage long compat_sys_newfstatat(unsigned int dfd,
490                                       const char __user *filename,
491                                       struct compat_stat __user *statbuf,
492                                       int flag);
493 asmlinkage long compat_sys_newfstat(unsigned int fd,
494                                     struct compat_stat __user *statbuf);
495 asmlinkage long compat_sys_statfs(const char __user *pathname,
496                                   struct compat_statfs __user *buf);
497 asmlinkage long compat_sys_fstatfs(unsigned int fd,
498                                    struct compat_statfs __user *buf);
499 asmlinkage long compat_sys_statfs64(const char __user *pathname,
500                                     compat_size_t sz,
501                                     struct compat_statfs64 __user *buf);
502 asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
503                                      struct compat_statfs64 __user *buf);
504 asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
505                                    unsigned long arg);
506 asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
507                                  unsigned long arg);
508 asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
509 asmlinkage long compat_sys_io_getevents(aio_context_t ctx_id,
510                                         unsigned long min_nr,
511                                         unsigned long nr,
512                                         struct io_event __user *events,
513                                         struct compat_timespec __user *timeout);
514 asmlinkage long compat_sys_io_submit(aio_context_t ctx_id, int nr,
515                                      u32 __user *iocb);
516 asmlinkage long compat_sys_mount(const char __user *dev_name,
517                                  const char __user *dir_name,
518                                  const char __user *type, unsigned long flags,
519                                  const void __user *data);
520 asmlinkage long compat_sys_old_readdir(unsigned int fd,
521                                        struct compat_old_linux_dirent __user *,
522                                        unsigned int count);
523 asmlinkage long compat_sys_getdents(unsigned int fd,
524                                     struct compat_linux_dirent __user *dirent,
525                                     unsigned int count);
526 asmlinkage long compat_sys_getdents64(unsigned int fd,
527                                       struct linux_dirent64 __user *dirent,
528                                       unsigned int count);
529 asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
530                                     unsigned int nr_segs, unsigned int flags);
531 asmlinkage long compat_sys_open(const char __user *filename, int flags,
532                                 umode_t mode);
533 asmlinkage long compat_sys_openat(int dfd, const char __user *filename,
534                                   int flags, umode_t mode);
535 asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
536                                              struct file_handle __user *handle,
537                                              int flags);
538 asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,
539                                     compat_ulong_t __user *outp,
540                                     compat_ulong_t __user *exp,
541                                     struct compat_timespec __user *tsp,
542                                     void __user *sig);
543 asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
544                                  unsigned int nfds,
545                                  struct compat_timespec __user *tsp,
546                                  const compat_sigset_t __user *sigmask,
547                                  compat_size_t sigsetsize);
548 asmlinkage long compat_sys_signalfd4(int ufd,
549                                      const compat_sigset_t __user *sigmask,
550                                      compat_size_t sigsetsize, int flags);
551 asmlinkage long compat_sys_get_mempolicy(int __user *policy,
552                                          compat_ulong_t __user *nmask,
553                                          compat_ulong_t maxnode,
554                                          compat_ulong_t addr,
555                                          compat_ulong_t flags);
556 asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
557                                          compat_ulong_t maxnode);
558 asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
559                                  compat_ulong_t mode,
560                                  compat_ulong_t __user *nmask,
561                                  compat_ulong_t maxnode, compat_ulong_t flags);
562
563 asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
564                                       char __user *optval, unsigned int optlen);
565 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
566                                    unsigned flags);
567 asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
568                                     unsigned vlen, unsigned int flags);
569 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
570                                    unsigned int flags);
571 asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len,
572                                 unsigned flags);
573 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
574                             unsigned flags, struct sockaddr __user *addr,
575                             int __user *addrlen);
576 asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
577                                     unsigned vlen, unsigned int flags,
578                                     struct compat_timespec __user *timeout);
579 asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
580                                      struct compat_timespec __user *rmtp);
581 asmlinkage long compat_sys_getitimer(int which,
582                                      struct compat_itimerval __user *it);
583 asmlinkage long compat_sys_setitimer(int which,
584                                      struct compat_itimerval __user *in,
585                                      struct compat_itimerval __user *out);
586 asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
587 asmlinkage long compat_sys_setrlimit(unsigned int resource,
588                                      struct compat_rlimit __user *rlim);
589 asmlinkage long compat_sys_getrlimit(unsigned int resource,
590                                      struct compat_rlimit __user *rlim);
591 asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
592 asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
593                                      unsigned int len,
594                                      compat_ulong_t __user *user_mask_ptr);
595 asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
596                                      unsigned int len,
597                                      compat_ulong_t __user *user_mask_ptr);
598 asmlinkage long compat_sys_timer_create(clockid_t which_clock,
599                         struct compat_sigevent __user *timer_event_spec,
600                         timer_t __user *created_timer_id);
601 asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags,
602                                          struct compat_itimerspec __user *new,
603                                          struct compat_itimerspec __user *old);
604 asmlinkage long compat_sys_timer_gettime(timer_t timer_id,
605                                  struct compat_itimerspec __user *setting);
606 asmlinkage long compat_sys_clock_settime(clockid_t which_clock,
607                                          struct compat_timespec __user *tp);
608 asmlinkage long compat_sys_clock_gettime(clockid_t which_clock,
609                                          struct compat_timespec __user *tp);
610 asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock,
611                                          struct compat_timex __user *tp);
612 asmlinkage long compat_sys_clock_getres(clockid_t which_clock,
613                                         struct compat_timespec __user *tp);
614 asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
615                                            struct compat_timespec __user *rqtp,
616                                            struct compat_timespec __user *rmtp);
617 asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese,
618                 struct compat_siginfo __user *uinfo,
619                 struct compat_timespec __user *uts, compat_size_t sigsetsize);
620 asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
621                                          compat_size_t sigsetsize);
622 asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set,
623                                           compat_sigset_t __user *oset,
624                                           compat_size_t sigsetsize);
625 asmlinkage long compat_sys_rt_sigpending(compat_sigset_t __user *uset,
626                                          compat_size_t sigsetsize);
627 #ifndef CONFIG_ODD_RT_SIGACTION
628 asmlinkage long compat_sys_rt_sigaction(int,
629                                  const struct compat_sigaction __user *,
630                                  struct compat_sigaction __user *,
631                                  compat_size_t);
632 #endif
633 asmlinkage long compat_sys_rt_sigqueueinfo(compat_pid_t pid, int sig,
634                                 struct compat_siginfo __user *uinfo);
635 asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
636 asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
637                                  unsigned long arg);
638 asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
639                 struct compat_timespec __user *utime, u32 __user *uaddr2,
640                 u32 val3);
641 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
642                                       char __user *optval, int __user *optlen);
643 asmlinkage long compat_sys_kexec_load(unsigned long entry,
644                                       unsigned long nr_segments,
645                                       struct compat_kexec_segment __user *,
646                                       unsigned long flags);
647 asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes,
648                         const struct compat_mq_attr __user *u_mqstat,
649                         struct compat_mq_attr __user *u_omqstat);
650 asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
651                         const struct compat_sigevent __user *u_notification);
652 asmlinkage long compat_sys_mq_open(const char __user *u_name,
653                         int oflag, compat_mode_t mode,
654                         struct compat_mq_attr __user *u_attr);
655 asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes,
656                         const char __user *u_msg_ptr,
657                         size_t msg_len, unsigned int msg_prio,
658                         const struct compat_timespec __user *u_abs_timeout);
659 asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes,
660                         char __user *u_msg_ptr,
661                         size_t msg_len, unsigned int __user *u_msg_prio,
662                         const struct compat_timespec __user *u_abs_timeout);
663 asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
664 asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
665
666 extern ssize_t compat_rw_copy_check_uvector(int type,
667                 const struct compat_iovec __user *uvector,
668                 unsigned long nr_segs,
669                 unsigned long fast_segs, struct iovec *fast_pointer,
670                 struct iovec **ret_pointer);
671
672 extern void __user *compat_alloc_user_space(unsigned long len);
673
674 asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid,
675                 const struct compat_iovec __user *lvec,
676                 unsigned long liovcnt, const struct compat_iovec __user *rvec,
677                 unsigned long riovcnt, unsigned long flags);
678 asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
679                 const struct compat_iovec __user *lvec,
680                 unsigned long liovcnt, const struct compat_iovec __user *rvec,
681                 unsigned long riovcnt, unsigned long flags);
682
683 asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
684                                     compat_off_t __user *offset, compat_size_t count);
685 asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr,
686                                        compat_stack_t __user *uoss_ptr);
687
688 int compat_restore_altstack(const compat_stack_t __user *uss);
689 int __compat_save_altstack(compat_stack_t __user *, unsigned long);
690
691 asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid,
692                                                  struct compat_timespec __user *interval);
693
694 #else
695
696 #define is_compat_task() (0)
697
698 #endif /* CONFIG_COMPAT */
699 #endif /* _LINUX_COMPAT_H */