2 * syscalls.h - Linux syscall interfaces (non-arch-specific)
4 * Copyright (c) 2004 Randy Dunlap
5 * Copyright (c) 2004 Open Source Development Labs
7 * This file is released under the GPLv2.
8 * See the file COPYING for more details.
11 #ifndef _LINUX_SYSCALLS_H
12 #define _LINUX_SYSCALLS_H
24 struct linux_dirent64;
26 struct mmap_arg_struct;
33 struct __old_kernel_stat;
34 struct oldold_utsname;
42 struct sel_arg_struct;
62 struct compat_timeval;
63 struct robust_list_head;
65 struct old_linux_dirent;
66 struct perf_event_attr;
71 #include <linux/types.h>
72 #include <linux/aio_abi.h>
73 #include <linux/capability.h>
74 #include <linux/signal.h>
75 #include <linux/list.h>
76 #include <linux/bug.h>
77 #include <linux/sem.h>
78 #include <asm/siginfo.h>
79 #include <linux/unistd.h>
80 #include <linux/quota.h>
81 #include <linux/key.h>
82 #include <trace/syscall.h>
85 * __MAP - apply a macro to syscall arguments
86 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
87 * m(t1, a1), m(t2, a2), ..., m(tn, an)
88 * The first argument must be equal to the amount of type/name
89 * pairs given. Note that this list of pairs (i.e. the arguments
90 * of __MAP starting at the third one) is in the same format as
91 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
94 #define __MAP1(m,t,a) m(t,a)
95 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
96 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
97 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
98 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
99 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
100 #define __MAP(n,...) __MAP##n(__VA_ARGS__)
102 #define __SC_DECL(t, a) t a
103 #define __TYPE_AS(t, v) __same_type((__force t)0, v)
104 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
105 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
106 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
107 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
108 #define __SC_CAST(t, a) (__force t) a
109 #define __SC_ARGS(t, a) a
110 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
112 #ifdef CONFIG_FTRACE_SYSCALLS
113 #define __SC_STR_ADECL(t, a) #a
114 #define __SC_STR_TDECL(t, a) #t
116 extern struct trace_event_class event_class_syscall_enter;
117 extern struct trace_event_class event_class_syscall_exit;
118 extern struct trace_event_functions enter_syscall_print_funcs;
119 extern struct trace_event_functions exit_syscall_print_funcs;
121 #define SYSCALL_TRACE_ENTER_EVENT(sname) \
122 static struct syscall_metadata __syscall_meta_##sname; \
123 static struct trace_event_call __used \
124 event_enter_##sname = { \
125 .class = &event_class_syscall_enter, \
127 .name = "sys_enter"#sname, \
129 .event.funcs = &enter_syscall_print_funcs, \
130 .data = (void *)&__syscall_meta_##sname,\
131 .flags = TRACE_EVENT_FL_CAP_ANY, \
133 static struct trace_event_call __used \
134 __attribute__((section("_ftrace_events"))) \
135 *__event_enter_##sname = &event_enter_##sname;
137 #define SYSCALL_TRACE_EXIT_EVENT(sname) \
138 static struct syscall_metadata __syscall_meta_##sname; \
139 static struct trace_event_call __used \
140 event_exit_##sname = { \
141 .class = &event_class_syscall_exit, \
143 .name = "sys_exit"#sname, \
145 .event.funcs = &exit_syscall_print_funcs, \
146 .data = (void *)&__syscall_meta_##sname,\
147 .flags = TRACE_EVENT_FL_CAP_ANY, \
149 static struct trace_event_call __used \
150 __attribute__((section("_ftrace_events"))) \
151 *__event_exit_##sname = &event_exit_##sname;
153 #define SYSCALL_METADATA(sname, nb, ...) \
154 static const char *types_##sname[] = { \
155 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
157 static const char *args_##sname[] = { \
158 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
160 SYSCALL_TRACE_ENTER_EVENT(sname); \
161 SYSCALL_TRACE_EXIT_EVENT(sname); \
162 static struct syscall_metadata __used \
163 __syscall_meta_##sname = { \
164 .name = "sys"#sname, \
165 .syscall_nr = -1, /* Filled in at boot */ \
167 .types = nb ? types_##sname : NULL, \
168 .args = nb ? args_##sname : NULL, \
169 .enter_event = &event_enter_##sname, \
170 .exit_event = &event_exit_##sname, \
171 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
173 static struct syscall_metadata __used \
174 __attribute__((section("__syscalls_metadata"))) \
175 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
177 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
179 return tp_event->class == &event_class_syscall_enter ||
180 tp_event->class == &event_class_syscall_exit;
184 #define SYSCALL_METADATA(sname, nb, ...)
186 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
192 #define SYSCALL_DEFINE0(sname) \
193 SYSCALL_METADATA(_##sname, 0); \
194 asmlinkage long sys_##sname(void); \
195 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
196 asmlinkage long sys_##sname(void)
198 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
199 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
200 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
201 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
202 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
203 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
205 #define SYSCALL_DEFINE_MAXARGS 6
207 #define SYSCALL_DEFINEx(x, sname, ...) \
208 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
209 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
211 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
212 #define __SYSCALL_DEFINEx(x, name, ...) \
213 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
214 __attribute__((alias(__stringify(SyS##name)))); \
215 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
216 static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
217 asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
218 asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
220 long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \
221 __MAP(x,__SC_TEST,__VA_ARGS__); \
222 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
225 static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
228 * Called before coming back to user-mode. Returning to user-mode with an
229 * address limit different than USER_DS can allow to overwrite kernel memory.
231 static inline void addr_limit_user_check(void)
234 if (!test_thread_flag(TIF_FSCHECK))
238 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS),
239 "Invalid address limit on user-mode return"))
240 force_sig(SIGKILL, current);
243 clear_thread_flag(TIF_FSCHECK);
248 * These syscall function prototypes are kept in the same order as
249 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
250 * followed by deprecated or obsolete system calls.
252 * Please note that these prototypes here are only provided for information
253 * purposes, for static analysis, and for linking from the syscall table.
254 * These functions should not be called elsewhere from kernel code.
256 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
257 asmlinkage long sys_io_destroy(aio_context_t ctx);
258 asmlinkage long sys_io_submit(aio_context_t, long,
259 struct iocb __user * __user *);
260 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
261 struct io_event __user *result);
262 asmlinkage long sys_io_getevents(aio_context_t ctx_id,
265 struct io_event __user *events,
266 struct timespec __user *timeout);
269 asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
270 const void __user *value, size_t size, int flags);
271 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
272 const void __user *value, size_t size, int flags);
273 asmlinkage long sys_fsetxattr(int fd, const char __user *name,
274 const void __user *value, size_t size, int flags);
275 asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
276 void __user *value, size_t size);
277 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
278 void __user *value, size_t size);
279 asmlinkage long sys_fgetxattr(int fd, const char __user *name,
280 void __user *value, size_t size);
281 asmlinkage long sys_listxattr(const char __user *path, char __user *list,
283 asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
285 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
286 asmlinkage long sys_removexattr(const char __user *path,
287 const char __user *name);
288 asmlinkage long sys_lremovexattr(const char __user *path,
289 const char __user *name);
290 asmlinkage long sys_fremovexattr(int fd, const char __user *name);
293 asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
296 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
299 asmlinkage long sys_eventfd2(unsigned int count, int flags);
302 asmlinkage long sys_epoll_create1(int flags);
303 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
304 struct epoll_event __user *event);
305 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
306 int maxevents, int timeout,
307 const sigset_t __user *sigmask,
311 asmlinkage long sys_dup(unsigned int fildes);
312 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
313 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
314 #if BITS_PER_LONG == 32
315 asmlinkage long sys_fcntl64(unsigned int fd,
316 unsigned int cmd, unsigned long arg);
319 /* fs/inotify_user.c */
320 asmlinkage long sys_inotify_init1(int flags);
321 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
323 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
326 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
330 asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
331 asmlinkage long sys_ioprio_get(int which, int who);
334 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
337 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
339 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
340 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
341 asmlinkage long sys_symlinkat(const char __user * oldname,
342 int newdfd, const char __user * newname);
343 asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
344 int newdfd, const char __user *newname, int flags);
345 asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
346 int newdfd, const char __user * newname);
349 asmlinkage long sys_umount(char __user *name, int flags);
350 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
351 char __user *type, unsigned long flags,
353 asmlinkage long sys_pivot_root(const char __user *new_root,
354 const char __user *put_old);
359 asmlinkage long sys_statfs(const char __user * path,
360 struct statfs __user *buf);
361 asmlinkage long sys_statfs64(const char __user *path, size_t sz,
362 struct statfs64 __user *buf);
363 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
364 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
365 struct statfs64 __user *buf);
366 asmlinkage long sys_truncate(const char __user *path, long length);
367 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
368 #if BITS_PER_LONG == 32
369 asmlinkage long sys_truncate64(const char __user *path, loff_t length);
370 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
372 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
373 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
374 asmlinkage long sys_chdir(const char __user *filename);
375 asmlinkage long sys_fchdir(unsigned int fd);
376 asmlinkage long sys_chroot(const char __user *filename);
377 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
378 asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
380 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
381 gid_t group, int flag);
382 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
383 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
385 asmlinkage long sys_close(unsigned int fd);
386 asmlinkage long sys_vhangup(void);
389 asmlinkage long sys_pipe2(int __user *fildes, int flags);
392 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
393 qid_t id, void __user *addr);
396 asmlinkage long sys_getdents64(unsigned int fd,
397 struct linux_dirent64 __user *dirent,
400 /* fs/read_write.c */
401 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
402 unsigned long offset_low, loff_t __user *result,
403 unsigned int whence);
404 asmlinkage long sys_lseek(unsigned int fd, off_t offset,
405 unsigned int whence);
406 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
407 asmlinkage long sys_write(unsigned int fd, const char __user *buf,
409 asmlinkage long sys_readv(unsigned long fd,
410 const struct iovec __user *vec,
412 asmlinkage long sys_writev(unsigned long fd,
413 const struct iovec __user *vec,
415 asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
416 size_t count, loff_t pos);
417 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
418 size_t count, loff_t pos);
419 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
420 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
421 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
422 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
425 asmlinkage long sys_sendfile64(int out_fd, int in_fd,
426 loff_t __user *offset, size_t count);
429 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
430 fd_set __user *, struct timespec __user *,
432 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
433 struct timespec __user *, const sigset_t __user *,
437 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
440 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
441 unsigned long nr_segs, unsigned int flags);
442 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
443 int fd_out, loff_t __user *off_out,
444 size_t len, unsigned int flags);
445 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
448 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
450 asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
451 struct stat __user *statbuf, int flag);
452 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
453 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
454 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
455 asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
456 struct stat64 __user *statbuf, int flag);
460 asmlinkage long sys_sync(void);
461 asmlinkage long sys_fsync(unsigned int fd);
462 asmlinkage long sys_fdatasync(unsigned int fd);
463 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
464 loff_t offset, loff_t nbytes);
465 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
469 asmlinkage long sys_timerfd_create(int clockid, int flags);
470 asmlinkage long sys_timerfd_settime(int ufd, int flags,
471 const struct itimerspec __user *utmr,
472 struct itimerspec __user *otmr);
473 asmlinkage long sys_timerfd_gettime(int ufd, struct itimerspec __user *otmr);
476 asmlinkage long sys_utimensat(int dfd, const char __user *filename,
477 struct timespec __user *utimes, int flags);
480 asmlinkage long sys_acct(const char __user *name);
482 /* kernel/capability.c */
483 asmlinkage long sys_capget(cap_user_header_t header,
484 cap_user_data_t dataptr);
485 asmlinkage long sys_capset(cap_user_header_t header,
486 const cap_user_data_t data);
488 /* kernel/exec_domain.c */
489 asmlinkage long sys_personality(unsigned int personality);
492 asmlinkage long sys_exit(int error_code);
493 asmlinkage long sys_exit_group(int error_code);
494 asmlinkage long sys_waitid(int which, pid_t pid,
495 struct siginfo __user *infop,
496 int options, struct rusage __user *ru);
499 asmlinkage long sys_set_tid_address(int __user *tidptr);
500 asmlinkage long sys_unshare(unsigned long unshare_flags);
503 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
504 struct timespec __user *utime, u32 __user *uaddr2,
506 asmlinkage long sys_get_robust_list(int pid,
507 struct robust_list_head __user * __user *head_ptr,
508 size_t __user *len_ptr);
509 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
512 /* kernel/hrtimer.c */
513 asmlinkage long sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp);
515 /* kernel/itimer.c */
516 asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
517 asmlinkage long sys_setitimer(int which,
518 struct itimerval __user *value,
519 struct itimerval __user *ovalue);
522 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
523 struct kexec_segment __user *segments,
524 unsigned long flags);
526 /* kernel/module.c */
527 asmlinkage long sys_init_module(void __user *umod, unsigned long len,
528 const char __user *uargs);
529 asmlinkage long sys_delete_module(const char __user *name_user,
532 /* kernel/posix-timers.c */
533 asmlinkage long sys_timer_create(clockid_t which_clock,
534 struct sigevent __user *timer_event_spec,
535 timer_t __user * created_timer_id);
536 asmlinkage long sys_timer_gettime(timer_t timer_id,
537 struct itimerspec __user *setting);
538 asmlinkage long sys_timer_getoverrun(timer_t timer_id);
539 asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
540 const struct itimerspec __user *new_setting,
541 struct itimerspec __user *old_setting);
542 asmlinkage long sys_timer_delete(timer_t timer_id);
543 asmlinkage long sys_clock_settime(clockid_t which_clock,
544 const struct timespec __user *tp);
545 asmlinkage long sys_clock_gettime(clockid_t which_clock,
546 struct timespec __user *tp);
547 asmlinkage long sys_clock_getres(clockid_t which_clock,
548 struct timespec __user *tp);
549 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
550 const struct timespec __user *rqtp,
551 struct timespec __user *rmtp);
553 /* kernel/printk.c */
554 asmlinkage long sys_syslog(int type, char __user *buf, int len);
556 /* kernel/ptrace.c */
557 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
559 /* kernel/sched/core.c */
561 asmlinkage long sys_sched_setparam(pid_t pid,
562 struct sched_param __user *param);
563 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
564 struct sched_param __user *param);
565 asmlinkage long sys_sched_getscheduler(pid_t pid);
566 asmlinkage long sys_sched_getparam(pid_t pid,
567 struct sched_param __user *param);
568 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
569 unsigned long __user *user_mask_ptr);
570 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
571 unsigned long __user *user_mask_ptr);
572 asmlinkage long sys_sched_yield(void);
573 asmlinkage long sys_sched_get_priority_max(int policy);
574 asmlinkage long sys_sched_get_priority_min(int policy);
575 asmlinkage long sys_sched_rr_get_interval(pid_t pid,
576 struct timespec __user *interval);
578 /* kernel/signal.c */
579 asmlinkage long sys_restart_syscall(void);
580 asmlinkage long sys_kill(pid_t pid, int sig);
581 asmlinkage long sys_tkill(pid_t pid, int sig);
582 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
583 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
584 struct sigaltstack __user *uoss);
585 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
586 #ifndef CONFIG_ODD_RT_SIGACTION
587 asmlinkage long sys_rt_sigaction(int,
588 const struct sigaction __user *,
589 struct sigaction __user *,
592 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
593 sigset_t __user *oset, size_t sigsetsize);
594 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
595 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
596 siginfo_t __user *uinfo,
597 const struct timespec __user *uts,
599 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
602 asmlinkage long sys_setpriority(int which, int who, int niceval);
603 asmlinkage long sys_getpriority(int which, int who);
604 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
606 asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
607 asmlinkage long sys_setgid(gid_t gid);
608 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
609 asmlinkage long sys_setuid(uid_t uid);
610 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
611 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
612 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
613 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
614 asmlinkage long sys_setfsuid(uid_t uid);
615 asmlinkage long sys_setfsgid(gid_t gid);
616 asmlinkage long sys_times(struct tms __user *tbuf);
617 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
618 asmlinkage long sys_getpgid(pid_t pid);
619 asmlinkage long sys_getsid(pid_t pid);
620 asmlinkage long sys_setsid(void);
621 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
622 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
623 asmlinkage long sys_newuname(struct new_utsname __user *name);
624 asmlinkage long sys_sethostname(char __user *name, int len);
625 asmlinkage long sys_setdomainname(char __user *name, int len);
626 asmlinkage long sys_getrlimit(unsigned int resource,
627 struct rlimit __user *rlim);
628 asmlinkage long sys_setrlimit(unsigned int resource,
629 struct rlimit __user *rlim);
630 asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
631 asmlinkage long sys_umask(int mask);
632 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
633 unsigned long arg4, unsigned long arg5);
634 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
637 asmlinkage long sys_gettimeofday(struct timeval __user *tv,
638 struct timezone __user *tz);
639 asmlinkage long sys_settimeofday(struct timeval __user *tv,
640 struct timezone __user *tz);
641 asmlinkage long sys_adjtimex(struct timex __user *txc_p);
644 asmlinkage long sys_getpid(void);
645 asmlinkage long sys_getppid(void);
646 asmlinkage long sys_getuid(void);
647 asmlinkage long sys_geteuid(void);
648 asmlinkage long sys_getgid(void);
649 asmlinkage long sys_getegid(void);
650 asmlinkage long sys_gettid(void);
651 asmlinkage long sys_sysinfo(struct sysinfo __user *info);
654 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
655 asmlinkage long sys_mq_unlink(const char __user *name);
656 asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct timespec __user *abs_timeout);
657 asmlinkage long sys_mq_timedreceive(mqd_t mqdes, char __user *msg_ptr, size_t msg_len, unsigned int __user *msg_prio, const struct timespec __user *abs_timeout);
658 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
659 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
662 asmlinkage long sys_msgget(key_t key, int msgflg);
663 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
664 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
665 size_t msgsz, long msgtyp, int msgflg);
666 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
667 size_t msgsz, int msgflg);
670 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
671 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
672 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
674 const struct timespec __user *timeout);
675 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
679 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
680 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
681 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
682 asmlinkage long sys_shmdt(char __user *shmaddr);
685 asmlinkage long sys_socket(int, int, int);
686 asmlinkage long sys_socketpair(int, int, int, int __user *);
687 asmlinkage long sys_bind(int, struct sockaddr __user *, int);
688 asmlinkage long sys_listen(int, int);
689 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
690 asmlinkage long sys_connect(int, struct sockaddr __user *, int);
691 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
692 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
693 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
694 struct sockaddr __user *, int);
695 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
696 struct sockaddr __user *, int __user *);
697 asmlinkage long sys_setsockopt(int fd, int level, int optname,
698 char __user *optval, int optlen);
699 asmlinkage long sys_getsockopt(int fd, int level, int optname,
700 char __user *optval, int __user *optlen);
701 asmlinkage long sys_shutdown(int, int);
702 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
703 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
706 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
708 /* mm/nommu.c, also with MMU */
709 asmlinkage long sys_brk(unsigned long brk);
710 asmlinkage long sys_munmap(unsigned long addr, size_t len);
711 asmlinkage long sys_mremap(unsigned long addr,
712 unsigned long old_len, unsigned long new_len,
713 unsigned long flags, unsigned long new_addr);
715 /* security/keys/keyctl.c */
716 asmlinkage long sys_add_key(const char __user *_type,
717 const char __user *_description,
718 const void __user *_payload,
720 key_serial_t destringid);
721 asmlinkage long sys_request_key(const char __user *_type,
722 const char __user *_description,
723 const char __user *_callout_info,
724 key_serial_t destringid);
725 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
726 unsigned long arg4, unsigned long arg5);
728 /* arch/example/kernel/sys_example.c */
729 #ifdef CONFIG_CLONE_BACKWARDS
730 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
733 #ifdef CONFIG_CLONE_BACKWARDS3
734 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
735 int __user *, unsigned long);
737 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
738 int __user *, unsigned long);
741 asmlinkage long sys_execve(const char __user *filename,
742 const char __user *const __user *argv,
743 const char __user *const __user *envp);
746 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
748 /* mm/, CONFIG_MMU only */
749 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
750 asmlinkage long sys_swapoff(const char __user *specialfile);
751 asmlinkage long sys_mprotect(unsigned long start, size_t len,
753 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
754 asmlinkage long sys_mlock(unsigned long start, size_t len);
755 asmlinkage long sys_munlock(unsigned long start, size_t len);
756 asmlinkage long sys_mlockall(int flags);
757 asmlinkage long sys_munlockall(void);
758 asmlinkage long sys_mincore(unsigned long start, size_t len,
759 unsigned char __user * vec);
760 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
761 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
762 unsigned long prot, unsigned long pgoff,
763 unsigned long flags);
764 asmlinkage long sys_mbind(unsigned long start, unsigned long len,
766 const unsigned long __user *nmask,
767 unsigned long maxnode,
769 asmlinkage long sys_get_mempolicy(int __user *policy,
770 unsigned long __user *nmask,
771 unsigned long maxnode,
772 unsigned long addr, unsigned long flags);
773 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
774 unsigned long maxnode);
775 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
776 const unsigned long __user *from,
777 const unsigned long __user *to);
778 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
779 const void __user * __user *pages,
780 const int __user *nodes,
784 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
785 siginfo_t __user *uinfo);
786 asmlinkage long sys_perf_event_open(
787 struct perf_event_attr __user *attr_uptr,
788 pid_t pid, int cpu, int group_fd, unsigned long flags);
789 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
790 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
791 unsigned int vlen, unsigned flags,
792 struct timespec __user *timeout);
794 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
795 int options, struct rusage __user *ru);
796 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
797 const struct rlimit64 __user *new_rlim,
798 struct rlimit64 __user *old_rlim);
799 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
800 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
802 const char __user *pathname);
803 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
804 struct file_handle __user *handle,
805 int __user *mnt_id, int flag);
806 asmlinkage long sys_open_by_handle_at(int mountdirfd,
807 struct file_handle __user *handle,
809 asmlinkage long sys_clock_adjtime(clockid_t which_clock,
810 struct timex __user *tx);
811 asmlinkage long sys_syncfs(int fd);
812 asmlinkage long sys_setns(int fd, int nstype);
813 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
814 unsigned int vlen, unsigned flags);
815 asmlinkage long sys_process_vm_readv(pid_t pid,
816 const struct iovec __user *lvec,
817 unsigned long liovcnt,
818 const struct iovec __user *rvec,
819 unsigned long riovcnt,
820 unsigned long flags);
821 asmlinkage long sys_process_vm_writev(pid_t pid,
822 const struct iovec __user *lvec,
823 unsigned long liovcnt,
824 const struct iovec __user *rvec,
825 unsigned long riovcnt,
826 unsigned long flags);
827 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
828 unsigned long idx1, unsigned long idx2);
829 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
830 asmlinkage long sys_sched_setattr(pid_t pid,
831 struct sched_attr __user *attr,
833 asmlinkage long sys_sched_getattr(pid_t pid,
834 struct sched_attr __user *attr,
837 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
838 int newdfd, const char __user *newname,
840 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
841 const char __user *uargs);
842 asmlinkage long sys_getrandom(char __user *buf, size_t count,
844 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
845 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
846 asmlinkage long sys_execveat(int dfd, const char __user *filename,
847 const char __user *const __user *argv,
848 const char __user *const __user *envp, int flags);
849 asmlinkage long sys_userfaultfd(int flags);
850 asmlinkage long sys_membarrier(int cmd, int flags);
851 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
852 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
853 int fd_out, loff_t __user *off_out,
854 size_t len, unsigned int flags);
855 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
856 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
858 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
859 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
861 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
862 unsigned long prot, int pkey);
863 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
864 asmlinkage long sys_pkey_free(int pkey);
865 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
866 unsigned mask, struct statx __user *buffer);
870 * Architecture-specific system calls
873 /* arch/x86/kernel/ioport.c */
874 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
876 /* pciconfig: alpha, arm, arm64, ia64, sparc */
877 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
878 unsigned long off, unsigned long len,
880 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
881 unsigned long off, unsigned long len,
883 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
886 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
887 __u32 __user *ustatus);
888 asmlinkage long sys_spu_create(const char __user *name,
889 unsigned int flags, umode_t mode, int fd);
893 * Deprecated system calls which are still defined in
894 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
897 /* __ARCH_WANT_SYSCALL_NO_AT */
898 asmlinkage long sys_open(const char __user *filename,
899 int flags, umode_t mode);
900 asmlinkage long sys_link(const char __user *oldname,
901 const char __user *newname);
902 asmlinkage long sys_unlink(const char __user *pathname);
903 asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
905 asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
906 asmlinkage long sys_chown(const char __user *filename,
907 uid_t user, gid_t group);
908 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
909 asmlinkage long sys_rmdir(const char __user *pathname);
910 asmlinkage long sys_lchown(const char __user *filename,
911 uid_t user, gid_t group);
912 asmlinkage long sys_access(const char __user *filename, int mode);
913 asmlinkage long sys_rename(const char __user *oldname,
914 const char __user *newname);
915 asmlinkage long sys_symlink(const char __user *old, const char __user *new);
916 asmlinkage long sys_utimes(char __user *filename,
917 struct timeval __user *utimes);
918 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
919 asmlinkage long sys_stat64(const char __user *filename,
920 struct stat64 __user *statbuf);
921 asmlinkage long sys_lstat64(const char __user *filename,
922 struct stat64 __user *statbuf);
925 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
926 asmlinkage long sys_pipe(int __user *fildes);
927 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
928 asmlinkage long sys_epoll_create(int size);
929 asmlinkage long sys_inotify_init(void);
930 asmlinkage long sys_eventfd(unsigned int count);
931 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
933 /* __ARCH_WANT_SYSCALL_OFF_T */
934 asmlinkage long sys_sendfile(int out_fd, int in_fd,
935 off_t __user *offset, size_t count);
936 asmlinkage long sys_newstat(const char __user *filename,
937 struct stat __user *statbuf);
938 asmlinkage long sys_newlstat(const char __user *filename,
939 struct stat __user *statbuf);
940 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
942 /* __ARCH_WANT_SYSCALL_DEPRECATED */
943 asmlinkage long sys_alarm(unsigned int seconds);
944 asmlinkage long sys_getpgrp(void);
945 asmlinkage long sys_pause(void);
946 asmlinkage long sys_time(time_t __user *tloc);
947 asmlinkage long sys_utime(char __user *filename,
948 struct utimbuf __user *times);
949 asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
950 asmlinkage long sys_getdents(unsigned int fd,
951 struct linux_dirent __user *dirent,
953 asmlinkage long sys_futimesat(int dfd, const char __user *filename,
954 struct timeval __user *utimes);
955 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
956 fd_set __user *exp, struct timeval __user *tvp);
957 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
959 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
960 int maxevents, int timeout);
961 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
962 asmlinkage long sys_vfork(void);
963 asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
964 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
965 asmlinkage long sys_bdflush(int func, long data);
966 asmlinkage long sys_oldumount(char __user *name);
967 asmlinkage long sys_uselib(const char __user *library);
968 asmlinkage long sys_sysctl(struct __sysctl_args __user *args);
969 asmlinkage long sys_sysfs(int option,
970 unsigned long arg1, unsigned long arg2);
971 asmlinkage long sys_fork(void);
973 /* obsolete: kernel/time/time.c */
974 asmlinkage long sys_stime(time_t __user *tptr);
976 /* obsolete: kernel/signal.c */
977 asmlinkage long sys_sigpending(old_sigset_t __user *uset);
978 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
979 old_sigset_t __user *oset);
980 #ifdef CONFIG_OLD_SIGSUSPEND
981 asmlinkage long sys_sigsuspend(old_sigset_t mask);
984 #ifdef CONFIG_OLD_SIGSUSPEND3
985 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
988 #ifdef CONFIG_OLD_SIGACTION
989 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
990 struct old_sigaction __user *);
992 asmlinkage long sys_sgetmask(void);
993 asmlinkage long sys_ssetmask(int newmask);
994 asmlinkage long sys_signal(int sig, __sighandler_t handler);
996 /* obsolete: kernel/sched/core.c */
997 asmlinkage long sys_nice(int increment);
999 /* obsolete: kernel/kexec_file.c */
1000 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1001 unsigned long cmdline_len,
1002 const char __user *cmdline_ptr,
1003 unsigned long flags);
1005 /* obsolete: kernel/exit.c */
1006 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1008 /* obsolete: kernel/uid16.c */
1009 #ifdef CONFIG_HAVE_UID16
1010 asmlinkage long sys_chown16(const char __user *filename,
1011 old_uid_t user, old_gid_t group);
1012 asmlinkage long sys_lchown16(const char __user *filename,
1013 old_uid_t user, old_gid_t group);
1014 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1015 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1016 asmlinkage long sys_setgid16(old_gid_t gid);
1017 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1018 asmlinkage long sys_setuid16(old_uid_t uid);
1019 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1020 asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1021 old_uid_t __user *euid, old_uid_t __user *suid);
1022 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1023 asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1024 old_gid_t __user *egid, old_gid_t __user *sgid);
1025 asmlinkage long sys_setfsuid16(old_uid_t uid);
1026 asmlinkage long sys_setfsgid16(old_gid_t gid);
1027 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1028 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1029 asmlinkage long sys_getuid16(void);
1030 asmlinkage long sys_geteuid16(void);
1031 asmlinkage long sys_getgid16(void);
1032 asmlinkage long sys_getegid16(void);
1035 /* obsolete: net/socket.c */
1036 asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1038 /* obsolete: fs/stat.c */
1039 asmlinkage long sys_stat(const char __user *filename,
1040 struct __old_kernel_stat __user *statbuf);
1041 asmlinkage long sys_lstat(const char __user *filename,
1042 struct __old_kernel_stat __user *statbuf);
1043 asmlinkage long sys_fstat(unsigned int fd,
1044 struct __old_kernel_stat __user *statbuf);
1045 asmlinkage long sys_readlink(const char __user *path,
1046 char __user *buf, int bufsiz);
1048 /* obsolete: fs/select.c */
1049 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1051 /* obsolete: fs/readdir.c */
1052 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1054 /* obsolete: kernel/sys.c */
1055 asmlinkage long sys_gethostname(char __user *name, int len);
1056 asmlinkage long sys_uname(struct old_utsname __user *);
1057 asmlinkage long sys_olduname(struct oldold_utsname __user *);
1058 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1059 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1063 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1064 unsigned long third, void __user *ptr, long fifth);
1067 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1068 unsigned long prot, unsigned long flags,
1069 unsigned long fd, unsigned long pgoff);
1070 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1074 * Not a real system call, but a placeholder for syscalls which are
1075 * not implemented -- see kernel/sys_ni.c
1077 asmlinkage long sys_ni_syscall(void);
1081 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1082 * Instead, use one of the functions which work equivalently, such as
1083 * the ksys_xyzyyz() functions prototyped below.
1086 int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type,
1087 unsigned long flags, void __user *data);
1088 int ksys_umount(char __user *name, int flags);
1089 int ksys_dup(unsigned int fildes);
1090 int ksys_chroot(const char __user *filename);
1091 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1092 int ksys_chdir(const char __user *filename);
1093 int ksys_fchmod(unsigned int fd, umode_t mode);
1094 int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1095 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent,
1096 unsigned int count);
1097 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
1098 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence);
1099 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1100 void ksys_sync(void);
1101 int ksys_unshare(unsigned long unshare_flags);
1102 int ksys_setsid(void);
1103 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1104 unsigned int flags);
1105 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1107 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1108 size_t count, loff_t pos);
1109 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1110 #ifdef CONFIG_ADVISE_SYSCALLS
1111 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1113 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1119 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1120 unsigned long prot, unsigned long flags,
1121 unsigned long fd, unsigned long pgoff);
1122 ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1125 * The following kernel syscall equivalents are just wrappers to fs-internal
1126 * functions. Therefore, provide stubs to be inlined at the callsites.
1128 extern long do_unlinkat(int dfd, struct filename *name);
1130 static inline long ksys_unlink(const char __user *pathname)
1132 return do_unlinkat(AT_FDCWD, getname(pathname));
1135 extern long do_rmdir(int dfd, const char __user *pathname);
1137 static inline long ksys_rmdir(const char __user *pathname)
1139 return do_rmdir(AT_FDCWD, pathname);
1142 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode);
1144 static inline long ksys_mkdir(const char __user *pathname, umode_t mode)
1146 return do_mkdirat(AT_FDCWD, pathname, mode);
1149 extern long do_symlinkat(const char __user *oldname, int newdfd,
1150 const char __user *newname);
1152 static inline long ksys_symlink(const char __user *oldname,
1153 const char __user *newname)
1155 return do_symlinkat(oldname, AT_FDCWD, newname);
1158 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode,
1161 static inline long ksys_mknod(const char __user *filename, umode_t mode,
1164 return do_mknodat(AT_FDCWD, filename, mode, dev);
1167 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd,
1168 const char __user *newname, int flags);
1170 static inline long ksys_link(const char __user *oldname,
1171 const char __user *newname)
1173 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0);
1176 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode);
1178 static inline int ksys_chmod(const char __user *filename, umode_t mode)
1180 return do_fchmodat(AT_FDCWD, filename, mode);
1183 extern long do_faccessat(int dfd, const char __user *filename, int mode);
1185 static inline long ksys_access(const char __user *filename, int mode)
1187 return do_faccessat(AT_FDCWD, filename, mode);
1190 extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1191 gid_t group, int flag);
1193 static inline long ksys_chown(const char __user *filename, uid_t user,
1196 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1199 static inline long ksys_lchown(const char __user *filename, uid_t user,
1202 return do_fchownat(AT_FDCWD, filename, user, group,
1203 AT_SYMLINK_NOFOLLOW);
1206 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1208 static inline long ksys_ftruncate(unsigned int fd, unsigned long length)
1210 return do_sys_ftruncate(fd, length, 1);
1213 extern int __close_fd(struct files_struct *files, unsigned int fd);
1216 * In contrast to sys_close(), this stub does not check whether the syscall
1217 * should or should not be restarted, but returns the raw error codes from
1220 static inline int ksys_close(unsigned int fd)
1222 return __close_fd(current->files, fd);
1225 extern long do_sys_open(int dfd, const char __user *filename, int flags,
1228 static inline long ksys_open(const char __user *filename, int flags,
1231 if (force_o_largefile())
1232 flags |= O_LARGEFILE;
1233 return do_sys_open(AT_FDCWD, filename, flags, mode);
1236 extern long do_sys_truncate(const char __user *pathname, loff_t length);
1238 static inline long ksys_truncate(const char __user *pathname, loff_t length)
1240 return do_sys_truncate(pathname, length);