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TOMOYO Linux Cross Reference
Linux/include/linux/compat.h

Version: ~ [ linux-5.5-rc1 ] ~ [ linux-5.4.2 ] ~ [ linux-5.3.15 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.88 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.158 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.206 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.206 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.78 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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_IRIX_SIGACTION
145         compat_uptr_t                   sa_handler;
146         compat_ulong_t                  sa_flags;
147 #else
148         compat_uint_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 asmlinkage long comat_sys_lseek(unsigned int, compat_off_t, unsigned int);
363 
364 asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
365                      const compat_uptr_t __user *envp);
366 
367 asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
368                 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
369                 struct compat_timeval __user *tvp);
370 
371 asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
372 
373 asmlinkage long compat_sys_wait4(compat_pid_t pid,
374                                  compat_uint_t __user *stat_addr, int options,
375                                  struct compat_rusage __user *ru);
376 
377 #define BITS_PER_COMPAT_LONG    (8*sizeof(compat_long_t))
378 
379 #define BITS_TO_COMPAT_LONGS(bits) \
380         (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
381 
382 long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
383                        unsigned long bitmap_size);
384 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
385                        unsigned long bitmap_size);
386 int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
387 int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
388 int get_compat_sigevent(struct sigevent *event,
389                 const struct compat_sigevent __user *u_event);
390 long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
391                                   struct compat_siginfo __user *uinfo);
392 #ifdef CONFIG_COMPAT_OLD_SIGACTION
393 asmlinkage long compat_sys_sigaction(int sig,
394                                    const struct compat_old_sigaction __user *act,
395                                    struct compat_old_sigaction __user *oact);
396 #endif
397 
398 static inline int compat_timeval_compare(struct compat_timeval *lhs,
399                                         struct compat_timeval *rhs)
400 {
401         if (lhs->tv_sec < rhs->tv_sec)
402                 return -1;
403         if (lhs->tv_sec > rhs->tv_sec)
404                 return 1;
405         return lhs->tv_usec - rhs->tv_usec;
406 }
407 
408 static inline int compat_timespec_compare(struct compat_timespec *lhs,
409                                         struct compat_timespec *rhs)
410 {
411         if (lhs->tv_sec < rhs->tv_sec)
412                 return -1;
413         if (lhs->tv_sec > rhs->tv_sec)
414                 return 1;
415         return lhs->tv_nsec - rhs->tv_nsec;
416 }
417 
418 extern int get_compat_itimerspec(struct itimerspec *dst,
419                                  const struct compat_itimerspec __user *src);
420 extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
421                                  const struct itimerspec *src);
422 
423 asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
424                 struct timezone __user *tz);
425 asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
426                 struct timezone __user *tz);
427 
428 asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
429 
430 extern int compat_printk(const char *fmt, ...);
431 extern void sigset_from_compat(sigset_t *set, const compat_sigset_t *compat);
432 extern void sigset_to_compat(compat_sigset_t *compat, const sigset_t *set);
433 
434 asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
435                 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
436                 const compat_ulong_t __user *new_nodes);
437 
438 extern int compat_ptrace_request(struct task_struct *child,
439                                  compat_long_t request,
440                                  compat_ulong_t addr, compat_ulong_t data);
441 
442 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
443                                compat_ulong_t addr, compat_ulong_t data);
444 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
445                                   compat_long_t addr, compat_long_t data);
446 
447 /*
448  * epoll (fs/eventpoll.c) compat bits follow ...
449  */
450 struct epoll_event;
451 #define compat_epoll_event      epoll_event
452 asmlinkage long compat_sys_epoll_pwait(int epfd,
453                         struct compat_epoll_event __user *events,
454                         int maxevents, int timeout,
455                         const compat_sigset_t __user *sigmask,
456                         compat_size_t sigsetsize);
457 
458 asmlinkage long compat_sys_utime(const char __user *filename,
459                                  struct compat_utimbuf __user *t);
460 asmlinkage long compat_sys_utimensat(unsigned int dfd,
461                                      const char __user *filename,
462                                      struct compat_timespec __user *t,
463                                      int flags);
464 
465 asmlinkage long compat_sys_time(compat_time_t __user *tloc);
466 asmlinkage long compat_sys_stime(compat_time_t __user *tptr);
467 asmlinkage long compat_sys_signalfd(int ufd,
468                                     const compat_sigset_t __user *sigmask,
469                                     compat_size_t sigsetsize);
470 asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
471                                    const struct compat_itimerspec __user *utmr,
472                                    struct compat_itimerspec __user *otmr);
473 asmlinkage long compat_sys_timerfd_gettime(int ufd,
474                                    struct compat_itimerspec __user *otmr);
475 
476 asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,
477                                       __u32 __user *pages,
478                                       const int __user *nodes,
479                                       int __user *status,
480                                       int flags);
481 asmlinkage long compat_sys_futimesat(unsigned int dfd,
482                                      const char __user *filename,
483                                      struct compat_timeval __user *t);
484 asmlinkage long compat_sys_utimes(const char __user *filename,
485                                   struct compat_timeval __user *t);
486 asmlinkage long compat_sys_newstat(const char __user *filename,
487                                    struct compat_stat __user *statbuf);
488 asmlinkage long compat_sys_newlstat(const char __user *filename,
489                                     struct compat_stat __user *statbuf);
490 asmlinkage long compat_sys_newfstatat(unsigned int dfd,
491                                       const char __user *filename,
492                                       struct compat_stat __user *statbuf,
493                                       int flag);
494 asmlinkage long compat_sys_newfstat(unsigned int fd,
495                                     struct compat_stat __user *statbuf);
496 asmlinkage long compat_sys_statfs(const char __user *pathname,
497                                   struct compat_statfs __user *buf);
498 asmlinkage long compat_sys_fstatfs(unsigned int fd,
499                                    struct compat_statfs __user *buf);
500 asmlinkage long compat_sys_statfs64(const char __user *pathname,
501                                     compat_size_t sz,
502                                     struct compat_statfs64 __user *buf);
503 asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
504                                      struct compat_statfs64 __user *buf);
505 asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
506                                    unsigned long arg);
507 asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
508                                  unsigned long arg);
509 asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
510 asmlinkage long compat_sys_io_getevents(aio_context_t ctx_id,
511                                         unsigned long min_nr,
512                                         unsigned long nr,
513                                         struct io_event __user *events,
514                                         struct compat_timespec __user *timeout);
515 asmlinkage long compat_sys_io_submit(aio_context_t ctx_id, int nr,
516                                      u32 __user *iocb);
517 asmlinkage long compat_sys_mount(const char __user *dev_name,
518                                  const char __user *dir_name,
519                                  const char __user *type, unsigned long flags,
520                                  const void __user *data);
521 asmlinkage long compat_sys_old_readdir(unsigned int fd,
522                                        struct compat_old_linux_dirent __user *,
523                                        unsigned int count);
524 asmlinkage long compat_sys_getdents(unsigned int fd,
525                                     struct compat_linux_dirent __user *dirent,
526                                     unsigned int count);
527 asmlinkage long compat_sys_getdents64(unsigned int fd,
528                                       struct linux_dirent64 __user *dirent,
529                                       unsigned int count);
530 asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
531                                     unsigned int nr_segs, unsigned int flags);
532 asmlinkage long compat_sys_open(const char __user *filename, int flags,
533                                 umode_t mode);
534 asmlinkage long compat_sys_openat(int dfd, const char __user *filename,
535                                   int flags, umode_t mode);
536 asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
537                                              struct file_handle __user *handle,
538                                              int flags);
539 asmlinkage long compat_sys_truncate(const char __user *, compat_off_t);
540 asmlinkage long compat_sys_ftruncate(unsigned int, compat_ulong_t);
541 asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,
542                                     compat_ulong_t __user *outp,
543                                     compat_ulong_t __user *exp,
544                                     struct compat_timespec __user *tsp,
545                                     void __user *sig);
546 asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
547                                  unsigned int nfds,
548                                  struct compat_timespec __user *tsp,
549                                  const compat_sigset_t __user *sigmask,
550                                  compat_size_t sigsetsize);
551 asmlinkage long compat_sys_signalfd4(int ufd,
552                                      const compat_sigset_t __user *sigmask,
553                                      compat_size_t sigsetsize, int flags);
554 asmlinkage long compat_sys_get_mempolicy(int __user *policy,
555                                          compat_ulong_t __user *nmask,
556                                          compat_ulong_t maxnode,
557                                          compat_ulong_t addr,
558                                          compat_ulong_t flags);
559 asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
560                                          compat_ulong_t maxnode);
561 asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
562                                  compat_ulong_t mode,
563                                  compat_ulong_t __user *nmask,
564                                  compat_ulong_t maxnode, compat_ulong_t flags);
565 
566 asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
567                                       char __user *optval, unsigned int optlen);
568 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
569                                    unsigned flags);
570 asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
571                                     unsigned vlen, unsigned int flags);
572 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
573                                    unsigned int flags);
574 asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len,
575                                 unsigned flags);
576 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
577                             unsigned flags, struct sockaddr __user *addr,
578                             int __user *addrlen);
579 asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
580                                     unsigned vlen, unsigned int flags,
581                                     struct compat_timespec __user *timeout);
582 asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
583                                      struct compat_timespec __user *rmtp);
584 asmlinkage long compat_sys_getitimer(int which,
585                                      struct compat_itimerval __user *it);
586 asmlinkage long compat_sys_setitimer(int which,
587                                      struct compat_itimerval __user *in,
588                                      struct compat_itimerval __user *out);
589 asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
590 asmlinkage long compat_sys_setrlimit(unsigned int resource,
591                                      struct compat_rlimit __user *rlim);
592 asmlinkage long compat_sys_getrlimit(unsigned int resource,
593                                      struct compat_rlimit __user *rlim);
594 asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
595 asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
596                                      unsigned int len,
597                                      compat_ulong_t __user *user_mask_ptr);
598 asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
599                                      unsigned int len,
600                                      compat_ulong_t __user *user_mask_ptr);
601 asmlinkage long compat_sys_timer_create(clockid_t which_clock,
602                         struct compat_sigevent __user *timer_event_spec,
603                         timer_t __user *created_timer_id);
604 asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags,
605                                          struct compat_itimerspec __user *new,
606                                          struct compat_itimerspec __user *old);
607 asmlinkage long compat_sys_timer_gettime(timer_t timer_id,
608                                  struct compat_itimerspec __user *setting);
609 asmlinkage long compat_sys_clock_settime(clockid_t which_clock,
610                                          struct compat_timespec __user *tp);
611 asmlinkage long compat_sys_clock_gettime(clockid_t which_clock,
612                                          struct compat_timespec __user *tp);
613 asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock,
614                                          struct compat_timex __user *tp);
615 asmlinkage long compat_sys_clock_getres(clockid_t which_clock,
616                                         struct compat_timespec __user *tp);
617 asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
618                                            struct compat_timespec __user *rqtp,
619                                            struct compat_timespec __user *rmtp);
620 asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese,
621                 struct compat_siginfo __user *uinfo,
622                 struct compat_timespec __user *uts, compat_size_t sigsetsize);
623 asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
624                                          compat_size_t sigsetsize);
625 asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set,
626                                           compat_sigset_t __user *oset,
627                                           compat_size_t sigsetsize);
628 asmlinkage long compat_sys_rt_sigpending(compat_sigset_t __user *uset,
629                                          compat_size_t sigsetsize);
630 #ifndef CONFIG_ODD_RT_SIGACTION
631 asmlinkage long compat_sys_rt_sigaction(int,
632                                  const struct compat_sigaction __user *,
633                                  struct compat_sigaction __user *,
634                                  compat_size_t);
635 #endif
636 asmlinkage long compat_sys_rt_sigqueueinfo(compat_pid_t pid, int sig,
637                                 struct compat_siginfo __user *uinfo);
638 asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
639 asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
640                                  unsigned long arg);
641 asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
642                 struct compat_timespec __user *utime, u32 __user *uaddr2,
643                 u32 val3);
644 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
645                                       char __user *optval, int __user *optlen);
646 asmlinkage long compat_sys_kexec_load(unsigned long entry,
647                                       unsigned long nr_segments,
648                                       struct compat_kexec_segment __user *,
649                                       unsigned long flags);
650 asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes,
651                         const struct compat_mq_attr __user *u_mqstat,
652                         struct compat_mq_attr __user *u_omqstat);
653 asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
654                         const struct compat_sigevent __user *u_notification);
655 asmlinkage long compat_sys_mq_open(const char __user *u_name,
656                         int oflag, compat_mode_t mode,
657                         struct compat_mq_attr __user *u_attr);
658 asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes,
659                         const char __user *u_msg_ptr,
660                         size_t msg_len, unsigned int msg_prio,
661                         const struct compat_timespec __user *u_abs_timeout);
662 asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes,
663                         char __user *u_msg_ptr,
664                         size_t msg_len, unsigned int __user *u_msg_prio,
665                         const struct compat_timespec __user *u_abs_timeout);
666 asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
667 asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
668 
669 extern ssize_t compat_rw_copy_check_uvector(int type,
670                 const struct compat_iovec __user *uvector,
671                 unsigned long nr_segs,
672                 unsigned long fast_segs, struct iovec *fast_pointer,
673                 struct iovec **ret_pointer);
674 
675 extern void __user *compat_alloc_user_space(unsigned long len);
676 
677 asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid,
678                 const struct compat_iovec __user *lvec,
679                 unsigned long liovcnt, const struct compat_iovec __user *rvec,
680                 unsigned long riovcnt, unsigned long flags);
681 asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
682                 const struct compat_iovec __user *lvec,
683                 unsigned long liovcnt, const struct compat_iovec __user *rvec,
684                 unsigned long riovcnt, unsigned long flags);
685 
686 asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
687                                     compat_off_t __user *offset, compat_size_t count);
688 asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr,
689                                        compat_stack_t __user *uoss_ptr);
690 
691 int compat_restore_altstack(const compat_stack_t __user *uss);
692 int __compat_save_altstack(compat_stack_t __user *, unsigned long);
693 
694 asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid,
695                                                  struct compat_timespec __user *interval);
696 
697 #else
698 
699 #define is_compat_task() (0)
700 
701 #endif /* CONFIG_COMPAT */
702 #endif /* _LINUX_COMPAT_H */
703 

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