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