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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
[linux-2.6-block.git] / include / linux / compat.h
CommitLineData
1da177e4
LT		 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 */
1da177e4
LT		 7
8#ifdef CONFIG_COMPAT
9
10#include <linux/stat.h>
11#include <linux/param.h> /* for HZ */
12#include <linux/sem.h>
2dceba14
AB		 13#include <linux/socket.h>
14#include <linux/if.h>
be84cb43 15#include <linux/fs.h>
45e9683e 16#include <linux/aio_abi.h> /* for aio_context_t */
1da177e4
LT		 17
18#include <asm/compat.h>
19#include <asm/siginfo.h>
3f2e05e9 20#include <asm/signal.h>
1da177e4 21
45e87781
L		 22#ifndef COMPAT_USE_64BIT_TIME
23#define COMPAT_USE_64BIT_TIME 0
24#endif
25
46836613
AV		 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
9b064fc3
AV		 68#ifndef compat_user_stack_pointer
69#define compat_user_stack_pointer() current_user_stack_pointer()
70#endif
90268439
AV		 71#ifndef compat_sigaltstack /* we'll need that for MIPS */
72typedef 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
90268439 78
1da177e4
LT		 79#define compat_jiffies_to_clock_t(x) \
80 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
81
202e5979
SR		 82typedef __compat_uid32_t compat_uid_t;
83typedef __compat_gid32_t compat_gid_t;
84
5d0e5283 85struct compat_sel_arg_struct;
1da177e4
LT		 86struct rusage;
87
4800a5bb 88struct compat_itimerspec {
1da177e4
LT		 89 struct compat_timespec it_interval;
90 struct compat_timespec it_value;
91};
92
93struct compat_utimbuf {
94 compat_time_t actime;
95 compat_time_t modtime;
96};
97
98struct compat_itimerval {
99 struct compat_timeval it_interval;
100 struct compat_timeval it_value;
101};
102
103struct 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
88959ea9
SR		 110struct 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;
153b5d05 130 compat_int_t tai;
88959ea9 131
4800a5bb
CM		 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;
88959ea9
SR		 135};
136
1da177e4
LT		 137#define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
138
139typedef struct {
140 compat_sigset_word sig[_COMPAT_NSIG_WORDS];
141} compat_sigset_t;
142
08d32fe5
AV		 143struct 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};
08d32fe5 156
6684ba20
PA		 157/*
158 * These functions operate strictly on struct compat_time*
159 */
4800a5bb
CM		 160extern int get_compat_timespec(struct timespec *,
161 const struct compat_timespec __user *);
162extern int put_compat_timespec(const struct timespec *,
163 struct compat_timespec __user *);
6684ba20
PA		 164extern int get_compat_timeval(struct timeval *,
165 const struct compat_timeval __user *);
166extern 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 */
173extern int compat_get_timespec(struct timespec *, const void __user *);
174extern int compat_put_timespec(const struct timespec *, void __user *);
175extern int compat_get_timeval(struct timeval *, const void __user *);
176extern int compat_put_timeval(const struct timeval *, void __user *);
1da177e4
LT		 177
178struct compat_iovec {
179 compat_uptr_t iov_base;
180 compat_size_t iov_len;
181};
182
183struct compat_rlimit {
184 compat_ulong_t rlim_cur;
185 compat_ulong_t rlim_max;
186};
187
188struct 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
4800a5bb
CM		 207extern int put_compat_rusage(const struct rusage *,
208 struct compat_rusage __user *);
1da177e4
LT		 209
210struct compat_siginfo;
211
212extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
213 struct compat_siginfo __user *, int,
214 struct compat_rusage __user *);
215
216struct compat_dirent {
217 u32 d_ino;
218 compat_off_t d_off;
219 u16 d_reclen;
220 char d_name[256];
221};
222
2b1c6bd7
CH		 223struct 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
1da177e4
LT		 230#define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
231
232typedef 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
2dceba14
AB		 247struct 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
4800a5bb 256struct compat_if_settings {
7a50a240
AB		 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
2dceba14 262struct compat_ifreq {
7a50a240
AB		 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 */
2dceba14 277 char ifru_newname[IFNAMSIZ];
7a50a240
AB		 278 compat_caddr_t ifru_data;
279 struct compat_if_settings ifru_settings;
280 } ifr_ifru;
2dceba14
AB		 281};
282
283struct compat_ifconf {
4800a5bb
CM		 284 compat_int_t ifc_len; /* size of buffer */
285 compat_caddr_t ifcbuf;
2dceba14
AB		 286};
287
34f192c6
IM		 288struct compat_robust_list {
289 compat_uptr_t next;
290};
291
292struct 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
495dfbf7
AV		 298#ifdef CONFIG_COMPAT_OLD_SIGACTION
299struct 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
be84cb43
CM		 307struct compat_statfs;
308struct compat_statfs64;
309struct compat_old_linux_dirent;
310struct compat_linux_dirent;
311struct linux_dirent64;
312struct compat_msghdr;
313struct compat_mmsghdr;
314struct compat_sysinfo;
315struct compat_sysctl_args;
316struct compat_kexec_segment;
317struct compat_mq_attr;
48b25c43 318struct compat_msgbuf;
be84cb43 319
34f192c6
IM		 320extern void compat_exit_robust_list(struct task_struct *curr);
321
322asmlinkage long
323compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
324 compat_size_t len);
325asmlinkage long
ba46df98 326compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
34f192c6 327 compat_size_t __user *len_ptr);
1da177e4 328
48b25c43 329#ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPC
1da177e4
LT		 330long compat_sys_semctl(int first, int second, int third, void __user *uptr);
331long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
332long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
333 int version, void __user *uptr);
1da177e4
LT		 334long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
335 void __user *uptr);
48b25c43
CM		 336#else
337long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
338long compat_sys_msgsnd(int msqid, struct compat_msgbuf __user *msgp,
05ba3f1a 339 compat_ssize_t msgsz, int msgflg);
48b25c43 340long compat_sys_msgrcv(int msqid, struct compat_msgbuf __user *msgp,
05ba3f1a 341 compat_ssize_t msgsz, long msgtyp, int msgflg);
48b25c43
CM		 342long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
343#endif
344long compat_sys_msgctl(int first, int second, void __user *uptr);
1da177e4
LT		 345long compat_sys_shmctl(int first, int second, void __user *uptr);
346long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
347 unsigned nsems, const struct compat_timespec __user *timeout);
348asmlinkage long compat_sys_keyctl(u32 option,
349 u32 arg2, u32 arg3, u32 arg4, u32 arg5);
2b1c6bd7 350asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
1da177e4
LT		 351
352asmlinkage ssize_t compat_sys_readv(unsigned long fd,
353 const struct compat_iovec __user *vec, unsigned long vlen);
354asmlinkage ssize_t compat_sys_writev(unsigned long fd,
355 const struct compat_iovec __user *vec, unsigned long vlen);
f3554f4b
GH		 356asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
357 const struct compat_iovec __user *vec,
601cc11d 358 unsigned long vlen, u32 pos_low, u32 pos_high);
f3554f4b
GH		 359asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
360 const struct compat_iovec __user *vec,
601cc11d 361 unsigned long vlen, u32 pos_low, u32 pos_high);
1da177e4 362
38b983b3
AV		 363asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
364 const compat_uptr_t __user *envp);
1da177e4
LT		 365
366asmlinkage 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
5d0e5283
CH		 370asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
371
c202f298 372asmlinkage long compat_sys_wait4(compat_pid_t pid,
7d61c459
AV		 373 compat_uint_t __user *stat_addr, int options,
374 struct compat_rusage __user *ru);
c202f298 375
1da177e4
LT		 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
5fa3839a 381long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
1da177e4
LT		 382 unsigned long bitmap_size);
383long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
384 unsigned long bitmap_size);
385int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
386int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
387int get_compat_sigevent(struct sigevent *event,
388 const struct compat_sigevent __user *u_event);
62ab4505
TG		 389long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
390 struct compat_siginfo __user *uinfo);
495dfbf7
AV		 391#ifdef CONFIG_COMPAT_OLD_SIGACTION
392asmlinkage long compat_sys_sigaction(int sig,
393 const struct compat_old_sigaction __user *act,
394 struct compat_old_sigaction __user *oact);
395#endif
1da177e4 396
643a6545
AM		 397static 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
407static 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
83f5d126
DL		 417extern int get_compat_itimerspec(struct itimerspec *dst,
418 const struct compat_itimerspec __user *src);
419extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
420 const struct itimerspec *src);
421
b418da16
CH		 422asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
423 struct timezone __user *tz);
424asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
425 struct timezone __user *tz);
426
3158e941
SR		 427asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
428
bebfa101 429extern int compat_printk(const char *fmt, ...);
322a56cb
AV		 430extern void sigset_from_compat(sigset_t *set, const compat_sigset_t *compat);
431extern void sigset_to_compat(compat_sigset_t *compat, const sigset_t *set);
bebfa101 432
3fd59397
SR		 433asmlinkage 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
032d82d9
RM		 437extern int compat_ptrace_request(struct task_struct *child,
438 compat_long_t request,
439 compat_ulong_t addr, compat_ulong_t data);
440
c269f196
RM		 441extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
442 compat_ulong_t addr, compat_ulong_t data);
443asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
444 compat_long_t addr, compat_long_t data);
c269f196 445
f6dfb4fd
DL		 446/*
447 * epoll (fs/eventpoll.c) compat bits follow ...
448 */
f6dfb4fd
DL		 449struct epoll_event;
450#define compat_epoll_event epoll_event
f6dfb4fd
DL		 451asmlinkage 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
be84cb43
CM		 457asmlinkage long compat_sys_utime(const char __user *filename,
458 struct compat_utimbuf __user *t);
4800a5bb
CM		 459asmlinkage long compat_sys_utimensat(unsigned int dfd,
460 const char __user *filename,
461 struct compat_timespec __user *t,
462 int flags);
97416ce8 463
be84cb43
CM		 464asmlinkage long compat_sys_time(compat_time_t __user *tloc);
465asmlinkage long compat_sys_stime(compat_time_t __user *tptr);
140ff8b0 466asmlinkage long compat_sys_signalfd(int ufd,
4800a5bb
CM		 467 const compat_sigset_t __user *sigmask,
468 compat_size_t sigsetsize);
4d672e7a
DL		 469asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
470 const struct compat_itimerspec __user *utmr,
471 struct compat_itimerspec __user *otmr);
472asmlinkage long compat_sys_timerfd_gettime(int ufd,
473 struct compat_itimerspec __user *otmr);
140ff8b0 474
4c696ba7
HC		 475asmlinkage 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);
4800a5bb
CM		 480asmlinkage long compat_sys_futimesat(unsigned int dfd,
481 const char __user *filename,
4c696ba7 482 struct compat_timeval __user *t);
be84cb43
CM		 483asmlinkage long compat_sys_utimes(const char __user *filename,
484 struct compat_timeval __user *t);
4800a5bb 485asmlinkage long compat_sys_newstat(const char __user *filename,
be84cb43 486 struct compat_stat __user *statbuf);
4800a5bb 487asmlinkage long compat_sys_newlstat(const char __user *filename,
be84cb43 488 struct compat_stat __user *statbuf);
4800a5bb
CM		 489asmlinkage long compat_sys_newfstatat(unsigned int dfd,
490 const char __user *filename,
4c696ba7
HC		 491 struct compat_stat __user *statbuf,
492 int flag);
be84cb43 493asmlinkage long compat_sys_newfstat(unsigned int fd,
4800a5bb 494 struct compat_stat __user *statbuf);
be84cb43
CM		 495asmlinkage long compat_sys_statfs(const char __user *pathname,
496 struct compat_statfs __user *buf);
497asmlinkage long compat_sys_fstatfs(unsigned int fd,
498 struct compat_statfs __user *buf);
499asmlinkage long compat_sys_statfs64(const char __user *pathname,
500 compat_size_t sz,
501 struct compat_statfs64 __user *buf);
502asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
503 struct compat_statfs64 __user *buf);
504asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
505 unsigned long arg);
506asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
507 unsigned long arg);
508asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
509asmlinkage 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);
514asmlinkage long compat_sys_io_submit(aio_context_t ctx_id, int nr,
515 u32 __user *iocb);
4800a5bb
CM		 516asmlinkage 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);
be84cb43
CM		 520asmlinkage long compat_sys_old_readdir(unsigned int fd,
521 struct compat_old_linux_dirent __user *,
522 unsigned int count);
523asmlinkage long compat_sys_getdents(unsigned int fd,
524 struct compat_linux_dirent __user *dirent,
525 unsigned int count);
526asmlinkage long compat_sys_getdents64(unsigned int fd,
4800a5bb 527 struct linux_dirent64 __user *dirent,
be84cb43
CM		 528 unsigned int count);
529asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
530 unsigned int nr_segs, unsigned int flags);
531asmlinkage long compat_sys_open(const char __user *filename, int flags,
a218d0fd 532 umode_t mode);
f482e1b4 533asmlinkage long compat_sys_openat(int dfd, const char __user *filename,
a218d0fd 534 int flags, umode_t mode);
be84cb43
CM		 535asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
536 struct file_handle __user *handle,
537 int flags);
538asmlinkage 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);
543asmlinkage 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);
be84cb43
CM		 548asmlinkage long compat_sys_signalfd4(int ufd,
549 const compat_sigset_t __user *sigmask,
550 compat_size_t sigsetsize, int flags);
551asmlinkage 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);
556asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
557 compat_ulong_t maxnode);
558asmlinkage 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
563asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
564 char __user *optval, unsigned int optlen);
565asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
566 unsigned flags);
507c5f12
CM		 567asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
568 unsigned vlen, unsigned int flags);
be84cb43
CM		 569asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
570 unsigned int flags);
571asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len,
572 unsigned flags);
573asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
574 unsigned flags, struct sockaddr __user *addr,
575 int __user *addrlen);
576asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
577 unsigned vlen, unsigned int flags,
578 struct compat_timespec __user *timeout);
579asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
580 struct compat_timespec __user *rmtp);
581asmlinkage long compat_sys_getitimer(int which,
582 struct compat_itimerval __user *it);
583asmlinkage long compat_sys_setitimer(int which,
584 struct compat_itimerval __user *in,
585 struct compat_itimerval __user *out);
586asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
587asmlinkage long compat_sys_setrlimit(unsigned int resource,
588 struct compat_rlimit __user *rlim);
4800a5bb
CM		 589asmlinkage long compat_sys_getrlimit(unsigned int resource,
590 struct compat_rlimit __user *rlim);
be84cb43
CM		 591asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
592asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
593 unsigned int len,
594 compat_ulong_t __user *user_mask_ptr);
595asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
596 unsigned int len,
597 compat_ulong_t __user *user_mask_ptr);
598asmlinkage long compat_sys_timer_create(clockid_t which_clock,
599 struct compat_sigevent __user *timer_event_spec,
600 timer_t __user *created_timer_id);
601asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags,
602 struct compat_itimerspec __user *new,
603 struct compat_itimerspec __user *old);
604asmlinkage long compat_sys_timer_gettime(timer_t timer_id,
605 struct compat_itimerspec __user *setting);
606asmlinkage long compat_sys_clock_settime(clockid_t which_clock,
607 struct compat_timespec __user *tp);
608asmlinkage long compat_sys_clock_gettime(clockid_t which_clock,
609 struct compat_timespec __user *tp);
610asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock,
611 struct compat_timex __user *tp);
612asmlinkage long compat_sys_clock_getres(clockid_t which_clock,
613 struct compat_timespec __user *tp);
614asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
615 struct compat_timespec __user *rqtp,
616 struct compat_timespec __user *rmtp);
4800a5bb 617asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese,
be84cb43
CM		 618 struct compat_siginfo __user *uinfo,
619 struct compat_timespec __user *uts, compat_size_t sigsetsize);
620asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
621 compat_size_t sigsetsize);
322a56cb
AV		 622asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set,
623 compat_sigset_t __user *oset,
624 compat_size_t sigsetsize);
fe9c1db2
AV		 625asmlinkage long compat_sys_rt_sigpending(compat_sigset_t __user *uset,
626 compat_size_t sigsetsize);
08d32fe5 627#ifndef CONFIG_ODD_RT_SIGACTION
08d32fe5
AV		 628asmlinkage long compat_sys_rt_sigaction(int,
629 const struct compat_sigaction __user *,
630 struct compat_sigaction __user *,
631 compat_size_t);
632#endif
75907d4d
AV		 633asmlinkage long compat_sys_rt_sigqueueinfo(compat_pid_t pid, int sig,
634 struct compat_siginfo __user *uinfo);
be84cb43
CM		 635asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
636asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
637 unsigned long arg);
638asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
639 struct compat_timespec __user *utime, u32 __user *uaddr2,
640 u32 val3);
641asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
642 char __user *optval, int __user *optlen);
643asmlinkage long compat_sys_kexec_load(unsigned long entry,
644 unsigned long nr_segments,
645 struct compat_kexec_segment __user *,
646 unsigned long flags);
647asmlinkage 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);
650asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
651 const struct compat_sigevent __user *u_notification);
652asmlinkage 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);
655asmlinkage 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);
659asmlinkage 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);
663asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
664asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
4c696ba7 665
b8373363 666extern ssize_t compat_rw_copy_check_uvector(int type,
4800a5bb
CM		 667 const struct compat_iovec __user *uvector,
668 unsigned long nr_segs,
b8373363 669 unsigned long fast_segs, struct iovec *fast_pointer,
ac34ebb3 670 struct iovec **ret_pointer);
c41d68a5
PA		 671
672extern void __user *compat_alloc_user_space(unsigned long len);
673
a67ba43d
CM		 674asmlinkage 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);
678asmlinkage 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
8f9c0119
CM		 683asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
684 compat_off_t __user *offset, compat_size_t count);
90268439
AV		 685asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr,
686 compat_stack_t __user *uoss_ptr);
687
688int compat_restore_altstack(const compat_stack_t __user *uss);
c40702c4 689int __compat_save_altstack(compat_stack_t __user *, unsigned long);
8f9c0119 690
0ad50c38
CM		 691asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid,
692 struct compat_timespec __user *interval);
693
3c761ea0
LT		 694#else
695
696#define is_compat_task() (0)
697
1da177e4
LT		 698#endif /* CONFIG_COMPAT */
699#endif /* _LINUX_COMPAT_H */
Linux 6.x block layer and io_uring tree(s)