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#include <linux/unistd.h>
18
19#include <asm/compat.h>
20#include <asm/siginfo.h>
21#include <asm/signal.h>
22
23#ifndef COMPAT_USE_64BIT_TIME
24#define COMPAT_USE_64BIT_TIME 0
25#endif
26
27#ifndef __SC_DELOUSE
28#define __SC_DELOUSE(t,v) ((t)(unsigned long)(v))
29#endif
30
31#define COMPAT_SYSCALL_DEFINE0(name) \
32 asmlinkage long compat_sys_##name(void)
33
34#define COMPAT_SYSCALL_DEFINE1(name, ...) \
35 COMPAT_SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
36#define COMPAT_SYSCALL_DEFINE2(name, ...) \
37 COMPAT_SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
38#define COMPAT_SYSCALL_DEFINE3(name, ...) \
39 COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
40#define COMPAT_SYSCALL_DEFINE4(name, ...) \
41 COMPAT_SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
42#define COMPAT_SYSCALL_DEFINE5(name, ...) \
43 COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
44#define COMPAT_SYSCALL_DEFINE6(name, ...) \
45 COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
46
47#define COMPAT_SYSCALL_DEFINEx(x, name, ...) \
48 asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\
49 __attribute__((alias(__stringify(compat_SyS##name)))); \
50 static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
51 asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));\
52 asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\
53 { \
54 return C_SYSC##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__)); \
55 } \
56 static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
57
58#ifndef compat_user_stack_pointer
59#define compat_user_stack_pointer() current_user_stack_pointer()
60#endif
61#ifndef compat_sigaltstack /* we'll need that for MIPS */
62typedef struct compat_sigaltstack {
63 compat_uptr_t ss_sp;
64 int ss_flags;
65 compat_size_t ss_size;
66} compat_stack_t;
67#endif
68
69#define compat_jiffies_to_clock_t(x) \
70 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
71
72typedef __compat_uid32_t compat_uid_t;
73typedef __compat_gid32_t compat_gid_t;
74
75typedef compat_ulong_t compat_aio_context_t;
76
77struct compat_sel_arg_struct;
78struct rusage;
79
80struct compat_itimerspec {
81 struct compat_timespec it_interval;
82 struct compat_timespec it_value;
83};
84
85struct compat_utimbuf {
86 compat_time_t actime;
87 compat_time_t modtime;
88};
89
90struct compat_itimerval {
91 struct compat_timeval it_interval;
92 struct compat_timeval it_value;
93};
94
95struct compat_tms {
96 compat_clock_t tms_utime;
97 compat_clock_t tms_stime;
98 compat_clock_t tms_cutime;
99 compat_clock_t tms_cstime;
100};
101
102struct compat_timex {
103 compat_uint_t modes;
104 compat_long_t offset;
105 compat_long_t freq;
106 compat_long_t maxerror;
107 compat_long_t esterror;
108 compat_int_t status;
109 compat_long_t constant;
110 compat_long_t precision;
111 compat_long_t tolerance;
112 struct compat_timeval time;
113 compat_long_t tick;
114 compat_long_t ppsfreq;
115 compat_long_t jitter;
116 compat_int_t shift;
117 compat_long_t stabil;
118 compat_long_t jitcnt;
119 compat_long_t calcnt;
120 compat_long_t errcnt;
121 compat_long_t stbcnt;
122 compat_int_t tai;
123
124 compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
125 compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
126 compat_int_t:32; compat_int_t:32; compat_int_t:32;
127};
128
129#define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
130
131typedef struct {
132 compat_sigset_word sig[_COMPAT_NSIG_WORDS];
133} compat_sigset_t;
134
135struct compat_sigaction {
136#ifndef __ARCH_HAS_IRIX_SIGACTION
137 compat_uptr_t sa_handler;
138 compat_ulong_t sa_flags;
139#else
140 compat_uint_t sa_flags;
141 compat_uptr_t sa_handler;
142#endif
143#ifdef __ARCH_HAS_SA_RESTORER
144 compat_uptr_t sa_restorer;
145#endif
146 compat_sigset_t sa_mask __packed;
147};
148
149/*
150 * These functions operate on 32- or 64-bit specs depending on
151 * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments.
152 */
153extern int compat_get_timespec(struct timespec *, const void __user *);
154extern int compat_put_timespec(const struct timespec *, void __user *);
155extern int compat_get_timeval(struct timeval *, const void __user *);
156extern int compat_put_timeval(const struct timeval *, void __user *);
157
158/*
159 * This function convert a timespec if necessary and returns a *user
160 * space* pointer. If no conversion is necessary, it returns the
161 * initial pointer. NULL is a legitimate argument and will always
162 * output NULL.
163 */
164extern int compat_convert_timespec(struct timespec __user **,
165 const void __user *);
166
167struct compat_iovec {
168 compat_uptr_t iov_base;
169 compat_size_t iov_len;
170};
171
172struct compat_rlimit {
173 compat_ulong_t rlim_cur;
174 compat_ulong_t rlim_max;
175};
176
177struct compat_rusage {
178 struct compat_timeval ru_utime;
179 struct compat_timeval ru_stime;
180 compat_long_t ru_maxrss;
181 compat_long_t ru_ixrss;
182 compat_long_t ru_idrss;
183 compat_long_t ru_isrss;
184 compat_long_t ru_minflt;
185 compat_long_t ru_majflt;
186 compat_long_t ru_nswap;
187 compat_long_t ru_inblock;
188 compat_long_t ru_oublock;
189 compat_long_t ru_msgsnd;
190 compat_long_t ru_msgrcv;
191 compat_long_t ru_nsignals;
192 compat_long_t ru_nvcsw;
193 compat_long_t ru_nivcsw;
194};
195
196extern int put_compat_rusage(const struct rusage *,
197 struct compat_rusage __user *);
198
199struct compat_siginfo;
200
201extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
202 struct compat_siginfo __user *, int,
203 struct compat_rusage __user *);
204
205struct compat_dirent {
206 u32 d_ino;
207 compat_off_t d_off;
208 u16 d_reclen;
209 char d_name[256];
210};
211
212struct compat_ustat {
213 compat_daddr_t f_tfree;
214 compat_ino_t f_tinode;
215 char f_fname[6];
216 char f_fpack[6];
217};
218
219#define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
220
221typedef struct compat_sigevent {
222 compat_sigval_t sigev_value;
223 compat_int_t sigev_signo;
224 compat_int_t sigev_notify;
225 union {
226 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
227 compat_int_t _tid;
228
229 struct {
230 compat_uptr_t _function;
231 compat_uptr_t _attribute;
232 } _sigev_thread;
233 } _sigev_un;
234} compat_sigevent_t;
235
236struct compat_ifmap {
237 compat_ulong_t mem_start;
238 compat_ulong_t mem_end;
239 unsigned short base_addr;
240 unsigned char irq;
241 unsigned char dma;
242 unsigned char port;
243};
244
245struct compat_if_settings {
246 unsigned int type; /* Type of physical device or protocol */
247 unsigned int size; /* Size of the data allocated by the caller */
248 compat_uptr_t ifs_ifsu; /* union of pointers */
249};
250
251struct compat_ifreq {
252 union {
253 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */
254 } ifr_ifrn;
255 union {
256 struct sockaddr ifru_addr;
257 struct sockaddr ifru_dstaddr;
258 struct sockaddr ifru_broadaddr;
259 struct sockaddr ifru_netmask;
260 struct sockaddr ifru_hwaddr;
261 short ifru_flags;
262 compat_int_t ifru_ivalue;
263 compat_int_t ifru_mtu;
264 struct compat_ifmap ifru_map;
265 char ifru_slave[IFNAMSIZ]; /* Just fits the size */
266 char ifru_newname[IFNAMSIZ];
267 compat_caddr_t ifru_data;
268 struct compat_if_settings ifru_settings;
269 } ifr_ifru;
270};
271
272struct compat_ifconf {
273 compat_int_t ifc_len; /* size of buffer */
274 compat_caddr_t ifcbuf;
275};
276
277struct compat_robust_list {
278 compat_uptr_t next;
279};
280
281struct compat_robust_list_head {
282 struct compat_robust_list list;
283 compat_long_t futex_offset;
284 compat_uptr_t list_op_pending;
285};
286
287#ifdef CONFIG_COMPAT_OLD_SIGACTION
288struct compat_old_sigaction {
289 compat_uptr_t sa_handler;
290 compat_old_sigset_t sa_mask;
291 compat_ulong_t sa_flags;
292 compat_uptr_t sa_restorer;
293};
294#endif
295
296struct compat_statfs;
297struct compat_statfs64;
298struct compat_old_linux_dirent;
299struct compat_linux_dirent;
300struct linux_dirent64;
301struct compat_msghdr;
302struct compat_mmsghdr;
303struct compat_sysinfo;
304struct compat_sysctl_args;
305struct compat_kexec_segment;
306struct compat_mq_attr;
307struct compat_msgbuf;
308
309extern void compat_exit_robust_list(struct task_struct *curr);
310
311asmlinkage long
312compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
313 compat_size_t len);
314asmlinkage long
315compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
316 compat_size_t __user *len_ptr);
317
318asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32);
319asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
320asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
321asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp,
322 compat_ssize_t msgsz, int msgflg);
323asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp,
324 compat_ssize_t msgsz, compat_long_t msgtyp, int msgflg);
325long compat_sys_msgctl(int first, int second, void __user *uptr);
326long compat_sys_shmctl(int first, int second, void __user *uptr);
327long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
328 unsigned nsems, const struct compat_timespec __user *timeout);
329asmlinkage long compat_sys_keyctl(u32 option,
330 u32 arg2, u32 arg3, u32 arg4, u32 arg5);
331asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
332
333asmlinkage ssize_t compat_sys_readv(compat_ulong_t fd,
334 const struct compat_iovec __user *vec, compat_ulong_t vlen);
335asmlinkage ssize_t compat_sys_writev(compat_ulong_t fd,
336 const struct compat_iovec __user *vec, compat_ulong_t vlen);
337asmlinkage ssize_t compat_sys_preadv(compat_ulong_t fd,
338 const struct compat_iovec __user *vec,
339 compat_ulong_t vlen, u32 pos_low, u32 pos_high);
340asmlinkage ssize_t compat_sys_pwritev(compat_ulong_t fd,
341 const struct compat_iovec __user *vec,
342 compat_ulong_t vlen, u32 pos_low, u32 pos_high);
343
344#ifdef __ARCH_WANT_COMPAT_SYS_PREADV64
345asmlinkage long compat_sys_preadv64(unsigned long fd,
346 const struct compat_iovec __user *vec,
347 unsigned long vlen, loff_t pos);
348#endif
349
350#ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64
351asmlinkage long compat_sys_pwritev64(unsigned long fd,
352 const struct compat_iovec __user *vec,
353 unsigned long vlen, loff_t pos);
354#endif
355
356asmlinkage long compat_sys_lseek(unsigned int, compat_off_t, unsigned int);
357
358asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
359 const compat_uptr_t __user *envp);
360
361asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
362 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
363 struct compat_timeval __user *tvp);
364
365asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
366
367asmlinkage long compat_sys_wait4(compat_pid_t pid,
368 compat_uint_t __user *stat_addr, int options,
369 struct compat_rusage __user *ru);
370
371#define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
372
373#define BITS_TO_COMPAT_LONGS(bits) \
374 (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
375
376long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
377 unsigned long bitmap_size);
378long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
379 unsigned long bitmap_size);
380int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
381int copy_siginfo_to_user32(struct compat_siginfo __user *to, const siginfo_t *from);
382int get_compat_sigevent(struct sigevent *event,
383 const struct compat_sigevent __user *u_event);
384long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
385 struct compat_siginfo __user *uinfo);
386#ifdef CONFIG_COMPAT_OLD_SIGACTION
387asmlinkage long compat_sys_sigaction(int sig,
388 const struct compat_old_sigaction __user *act,
389 struct compat_old_sigaction __user *oact);
390#endif
391
392static inline int compat_timeval_compare(struct compat_timeval *lhs,
393 struct compat_timeval *rhs)
394{
395 if (lhs->tv_sec < rhs->tv_sec)
396 return -1;
397 if (lhs->tv_sec > rhs->tv_sec)
398 return 1;
399 return lhs->tv_usec - rhs->tv_usec;
400}
401
402static inline int compat_timespec_compare(struct compat_timespec *lhs,
403 struct compat_timespec *rhs)
404{
405 if (lhs->tv_sec < rhs->tv_sec)
406 return -1;
407 if (lhs->tv_sec > rhs->tv_sec)
408 return 1;
409 return lhs->tv_nsec - rhs->tv_nsec;
410}
411
412extern int get_compat_itimerspec(struct itimerspec *dst,
413 const struct compat_itimerspec __user *src);
414extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
415 const struct itimerspec *src);
416
417asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
418 struct timezone __user *tz);
419asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
420 struct timezone __user *tz);
421
422asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
423
424extern int compat_printk(const char *fmt, ...);
425extern void sigset_from_compat(sigset_t *set, const compat_sigset_t *compat);
426extern void sigset_to_compat(compat_sigset_t *compat, const sigset_t *set);
427
428asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
429 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
430 const compat_ulong_t __user *new_nodes);
431
432extern int compat_ptrace_request(struct task_struct *child,
433 compat_long_t request,
434 compat_ulong_t addr, compat_ulong_t data);
435
436extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
437 compat_ulong_t addr, compat_ulong_t data);
438asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
439 compat_long_t addr, compat_long_t data);
440
441asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t);
442/*
443 * epoll (fs/eventpoll.c) compat bits follow ...
444 */
445struct epoll_event; /* fortunately, this one is fixed-layout */
446asmlinkage long compat_sys_epoll_pwait(int epfd,
447 struct epoll_event __user *events,
448 int maxevents, int timeout,
449 const compat_sigset_t __user *sigmask,
450 compat_size_t sigsetsize);
451
452asmlinkage long compat_sys_utime(const char __user *filename,
453 struct compat_utimbuf __user *t);
454asmlinkage long compat_sys_utimensat(unsigned int dfd,
455 const char __user *filename,
456 struct compat_timespec __user *t,
457 int flags);
458
459asmlinkage long compat_sys_time(compat_time_t __user *tloc);
460asmlinkage long compat_sys_stime(compat_time_t __user *tptr);
461asmlinkage long compat_sys_signalfd(int ufd,
462 const compat_sigset_t __user *sigmask,
463 compat_size_t sigsetsize);
464asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
465 const struct compat_itimerspec __user *utmr,
466 struct compat_itimerspec __user *otmr);
467asmlinkage long compat_sys_timerfd_gettime(int ufd,
468 struct compat_itimerspec __user *otmr);
469
470asmlinkage long compat_sys_move_pages(pid_t pid, compat_ulong_t nr_pages,
471 __u32 __user *pages,
472 const int __user *nodes,
473 int __user *status,
474 int flags);
475asmlinkage long compat_sys_futimesat(unsigned int dfd,
476 const char __user *filename,
477 struct compat_timeval __user *t);
478asmlinkage long compat_sys_utimes(const char __user *filename,
479 struct compat_timeval __user *t);
480asmlinkage long compat_sys_newstat(const char __user *filename,
481 struct compat_stat __user *statbuf);
482asmlinkage long compat_sys_newlstat(const char __user *filename,
483 struct compat_stat __user *statbuf);
484asmlinkage long compat_sys_newfstatat(unsigned int dfd,
485 const char __user *filename,
486 struct compat_stat __user *statbuf,
487 int flag);
488asmlinkage long compat_sys_newfstat(unsigned int fd,
489 struct compat_stat __user *statbuf);
490asmlinkage long compat_sys_statfs(const char __user *pathname,
491 struct compat_statfs __user *buf);
492asmlinkage long compat_sys_fstatfs(unsigned int fd,
493 struct compat_statfs __user *buf);
494asmlinkage long compat_sys_statfs64(const char __user *pathname,
495 compat_size_t sz,
496 struct compat_statfs64 __user *buf);
497asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
498 struct compat_statfs64 __user *buf);
499asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
500 compat_ulong_t arg);
501asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
502 compat_ulong_t arg);
503asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
504asmlinkage long compat_sys_io_getevents(compat_aio_context_t ctx_id,
505 compat_long_t min_nr,
506 compat_long_t nr,
507 struct io_event __user *events,
508 struct compat_timespec __user *timeout);
509asmlinkage long compat_sys_io_submit(compat_aio_context_t ctx_id, int nr,
510 u32 __user *iocb);
511asmlinkage long compat_sys_mount(const char __user *dev_name,
512 const char __user *dir_name,
513 const char __user *type, compat_ulong_t flags,
514 const void __user *data);
515asmlinkage long compat_sys_old_readdir(unsigned int fd,
516 struct compat_old_linux_dirent __user *,
517 unsigned int count);
518asmlinkage long compat_sys_getdents(unsigned int fd,
519 struct compat_linux_dirent __user *dirent,
520 unsigned int count);
521#ifdef __ARCH_WANT_COMPAT_SYS_GETDENTS64
522asmlinkage long compat_sys_getdents64(unsigned int fd,
523 struct linux_dirent64 __user *dirent,
524 unsigned int count);
525#endif
526asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
527 unsigned int nr_segs, unsigned int flags);
528asmlinkage long compat_sys_open(const char __user *filename, int flags,
529 umode_t mode);
530asmlinkage long compat_sys_openat(int dfd, const char __user *filename,
531 int flags, umode_t mode);
532asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
533 struct file_handle __user *handle,
534 int flags);
535asmlinkage long compat_sys_truncate(const char __user *, compat_off_t);
536asmlinkage long compat_sys_ftruncate(unsigned int, compat_ulong_t);
537asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,
538 compat_ulong_t __user *outp,
539 compat_ulong_t __user *exp,
540 struct compat_timespec __user *tsp,
541 void __user *sig);
542asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
543 unsigned int nfds,
544 struct compat_timespec __user *tsp,
545 const compat_sigset_t __user *sigmask,
546 compat_size_t sigsetsize);
547asmlinkage long compat_sys_signalfd4(int ufd,
548 const compat_sigset_t __user *sigmask,
549 compat_size_t sigsetsize, int flags);
550asmlinkage long compat_sys_get_mempolicy(int __user *policy,
551 compat_ulong_t __user *nmask,
552 compat_ulong_t maxnode,
553 compat_ulong_t addr,
554 compat_ulong_t flags);
555asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
556 compat_ulong_t maxnode);
557asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
558 compat_ulong_t mode,
559 compat_ulong_t __user *nmask,
560 compat_ulong_t maxnode, compat_ulong_t flags);
561
562asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
563 char __user *optval, unsigned int optlen);
564asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
565 unsigned flags);
566asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
567 unsigned vlen, unsigned int flags);
568asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
569 unsigned int flags);
570asmlinkage long compat_sys_recv(int fd, void __user *buf, compat_size_t len,
571 unsigned flags);
572asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, compat_size_t len,
573 unsigned flags, struct sockaddr __user *addr,
574 int __user *addrlen);
575asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
576 unsigned vlen, unsigned int flags,
577 struct compat_timespec __user *timeout);
578asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
579 struct compat_timespec __user *rmtp);
580asmlinkage long compat_sys_getitimer(int which,
581 struct compat_itimerval __user *it);
582asmlinkage long compat_sys_setitimer(int which,
583 struct compat_itimerval __user *in,
584 struct compat_itimerval __user *out);
585asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
586asmlinkage long compat_sys_setrlimit(unsigned int resource,
587 struct compat_rlimit __user *rlim);
588asmlinkage long compat_sys_getrlimit(unsigned int resource,
589 struct compat_rlimit __user *rlim);
590asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
591asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
592 unsigned int len,
593 compat_ulong_t __user *user_mask_ptr);
594asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
595 unsigned int len,
596 compat_ulong_t __user *user_mask_ptr);
597asmlinkage long compat_sys_timer_create(clockid_t which_clock,
598 struct compat_sigevent __user *timer_event_spec,
599 timer_t __user *created_timer_id);
600asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags,
601 struct compat_itimerspec __user *new,
602 struct compat_itimerspec __user *old);
603asmlinkage long compat_sys_timer_gettime(timer_t timer_id,
604 struct compat_itimerspec __user *setting);
605asmlinkage long compat_sys_clock_settime(clockid_t which_clock,
606 struct compat_timespec __user *tp);
607asmlinkage long compat_sys_clock_gettime(clockid_t which_clock,
608 struct compat_timespec __user *tp);
609asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock,
610 struct compat_timex __user *tp);
611asmlinkage long compat_sys_clock_getres(clockid_t which_clock,
612 struct compat_timespec __user *tp);
613asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
614 struct compat_timespec __user *rqtp,
615 struct compat_timespec __user *rmtp);
616asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese,
617 struct compat_siginfo __user *uinfo,
618 struct compat_timespec __user *uts, compat_size_t sigsetsize);
619asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
620 compat_size_t sigsetsize);
621asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set,
622 compat_sigset_t __user *oset,
623 compat_size_t sigsetsize);
624asmlinkage long compat_sys_rt_sigpending(compat_sigset_t __user *uset,
625 compat_size_t sigsetsize);
626#ifndef CONFIG_ODD_RT_SIGACTION
627asmlinkage long compat_sys_rt_sigaction(int,
628 const struct compat_sigaction __user *,
629 struct compat_sigaction __user *,
630 compat_size_t);
631#endif
632asmlinkage long compat_sys_rt_sigqueueinfo(compat_pid_t pid, int sig,
633 struct compat_siginfo __user *uinfo);
634asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
635asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
636 compat_ulong_t arg);
637asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
638 struct compat_timespec __user *utime, u32 __user *uaddr2,
639 u32 val3);
640asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
641 char __user *optval, int __user *optlen);
642asmlinkage long compat_sys_kexec_load(compat_ulong_t entry,
643 compat_ulong_t nr_segments,
644 struct compat_kexec_segment __user *,
645 compat_ulong_t flags);
646asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes,
647 const struct compat_mq_attr __user *u_mqstat,
648 struct compat_mq_attr __user *u_omqstat);
649asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
650 const struct compat_sigevent __user *u_notification);
651asmlinkage long compat_sys_mq_open(const char __user *u_name,
652 int oflag, compat_mode_t mode,
653 struct compat_mq_attr __user *u_attr);
654asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes,
655 const char __user *u_msg_ptr,
656 compat_size_t msg_len, unsigned int msg_prio,
657 const struct compat_timespec __user *u_abs_timeout);
658asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes,
659 char __user *u_msg_ptr,
660 compat_size_t msg_len, unsigned int __user *u_msg_prio,
661 const struct compat_timespec __user *u_abs_timeout);
662asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
663asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
664
665extern ssize_t compat_rw_copy_check_uvector(int type,
666 const struct compat_iovec __user *uvector,
667 unsigned long nr_segs,
668 unsigned long fast_segs, struct iovec *fast_pointer,
669 struct iovec **ret_pointer);
670
671extern void __user *compat_alloc_user_space(unsigned long len);
672
673asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid,
674 const struct compat_iovec __user *lvec,
675 compat_ulong_t liovcnt, const struct compat_iovec __user *rvec,
676 compat_ulong_t riovcnt, compat_ulong_t flags);
677asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
678 const struct compat_iovec __user *lvec,
679 compat_ulong_t liovcnt, const struct compat_iovec __user *rvec,
680 compat_ulong_t riovcnt, compat_ulong_t flags);
681
682asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
683 compat_off_t __user *offset, compat_size_t count);
684asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
685 compat_loff_t __user *offset, compat_size_t count);
686asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr,
687 compat_stack_t __user *uoss_ptr);
688
689int compat_restore_altstack(const compat_stack_t __user *uss);
690int __compat_save_altstack(compat_stack_t __user *, unsigned long);
691#define compat_save_altstack_ex(uss, sp) do { \
692 compat_stack_t __user *__uss = uss; \
693 struct task_struct *t = current; \
694 put_user_ex(ptr_to_compat((void __user *)t->sas_ss_sp), &__uss->ss_sp); \
695 put_user_ex(sas_ss_flags(sp), &__uss->ss_flags); \
696 put_user_ex(t->sas_ss_size, &__uss->ss_size); \
697} while (0);
698
699asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid,
700 struct compat_timespec __user *interval);
701
702asmlinkage long compat_sys_fanotify_mark(int, unsigned int, __u32, __u32,
703 int, const char __user *);
704#else
705
706#define is_compat_task() (0)
707
708#endif /* CONFIG_COMPAT */
709#endif /* _LINUX_COMPAT_H */