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
25 struct linux_dirent64;
27 struct mmap_arg_struct;
34 struct __old_kernel_stat;
35 struct oldold_utsname;
43 struct sel_arg_struct;
64 struct robust_list_head;
66 struct old_linux_dirent;
67 struct perf_event_attr;
72 struct io_uring_params;
74 #include <linux/types.h>
75 #include <linux/aio_abi.h>
76 #include <linux/capability.h>
77 #include <linux/signal.h>
78 #include <linux/list.h>
79 #include <linux/bug.h>
80 #include <linux/sem.h>
81 #include <asm/siginfo.h>
82 #include <linux/unistd.h>
83 #include <linux/quota.h>
84 #include <linux/key.h>
85 #include <linux/personality.h>
86 #include <trace/syscall.h>
88 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
90 * It may be useful for an architecture to override the definitions of the
91 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
92 * different calling convention for syscalls. To allow for that, the prototypes
93 * for the sys_*() functions below will *not* be included if
94 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
96 #include <asm/syscall_wrapper.h>
97 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
100 * __MAP - apply a macro to syscall arguments
101 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
102 * m(t1, a1), m(t2, a2), ..., m(tn, an)
103 * The first argument must be equal to the amount of type/name
104 * pairs given. Note that this list of pairs (i.e. the arguments
105 * of __MAP starting at the third one) is in the same format as
106 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
108 #define __MAP0(m,...)
109 #define __MAP1(m,t,a,...) m(t,a)
110 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
111 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
112 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
113 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
114 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
115 #define __MAP(n,...) __MAP##n(__VA_ARGS__)
117 #define __SC_DECL(t, a) t a
118 #define __TYPE_AS(t, v) __same_type((__force t)0, v)
119 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
120 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
121 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
122 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
123 #define __SC_CAST(t, a) (__force t) a
124 #define __SC_ARGS(t, a) a
125 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
127 #ifdef CONFIG_FTRACE_SYSCALLS
128 #define __SC_STR_ADECL(t, a) #a
129 #define __SC_STR_TDECL(t, a) #t
131 extern struct trace_event_class event_class_syscall_enter;
132 extern struct trace_event_class event_class_syscall_exit;
133 extern struct trace_event_functions enter_syscall_print_funcs;
134 extern struct trace_event_functions exit_syscall_print_funcs;
136 #define SYSCALL_TRACE_ENTER_EVENT(sname) \
137 static struct syscall_metadata __syscall_meta_##sname; \
138 static struct trace_event_call __used \
139 event_enter_##sname = { \
140 .class = &event_class_syscall_enter, \
142 .name = "sys_enter"#sname, \
144 .event.funcs = &enter_syscall_print_funcs, \
145 .data = (void *)&__syscall_meta_##sname,\
146 .flags = TRACE_EVENT_FL_CAP_ANY, \
148 static struct trace_event_call __used \
149 __attribute__((section("_ftrace_events"))) \
150 *__event_enter_##sname = &event_enter_##sname;
152 #define SYSCALL_TRACE_EXIT_EVENT(sname) \
153 static struct syscall_metadata __syscall_meta_##sname; \
154 static struct trace_event_call __used \
155 event_exit_##sname = { \
156 .class = &event_class_syscall_exit, \
158 .name = "sys_exit"#sname, \
160 .event.funcs = &exit_syscall_print_funcs, \
161 .data = (void *)&__syscall_meta_##sname,\
162 .flags = TRACE_EVENT_FL_CAP_ANY, \
164 static struct trace_event_call __used \
165 __attribute__((section("_ftrace_events"))) \
166 *__event_exit_##sname = &event_exit_##sname;
168 #define SYSCALL_METADATA(sname, nb, ...) \
169 static const char *types_##sname[] = { \
170 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
172 static const char *args_##sname[] = { \
173 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
175 SYSCALL_TRACE_ENTER_EVENT(sname); \
176 SYSCALL_TRACE_EXIT_EVENT(sname); \
177 static struct syscall_metadata __used \
178 __syscall_meta_##sname = { \
179 .name = "sys"#sname, \
180 .syscall_nr = -1, /* Filled in at boot */ \
182 .types = nb ? types_##sname : NULL, \
183 .args = nb ? args_##sname : NULL, \
184 .enter_event = &event_enter_##sname, \
185 .exit_event = &event_exit_##sname, \
186 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
188 static struct syscall_metadata __used \
189 __attribute__((section("__syscalls_metadata"))) \
190 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
192 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
194 return tp_event->class == &event_class_syscall_enter ||
195 tp_event->class == &event_class_syscall_exit;
199 #define SYSCALL_METADATA(sname, nb, ...)
201 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
207 #ifndef SYSCALL_DEFINE0
208 #define SYSCALL_DEFINE0(sname) \
209 SYSCALL_METADATA(_##sname, 0); \
210 asmlinkage long sys_##sname(void); \
211 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
212 asmlinkage long sys_##sname(void)
213 #endif /* SYSCALL_DEFINE0 */
215 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
216 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
217 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
218 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
219 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
220 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
222 #define SYSCALL_DEFINE_MAXARGS 6
224 #define SYSCALL_DEFINEx(x, sname, ...) \
225 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
226 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
228 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
231 * The asmlinkage stub is aliased to a function named __se_sys_*() which
232 * sign-extends 32-bit ints to longs whenever needed. The actual work is
233 * done within __do_sys_*().
235 #ifndef __SYSCALL_DEFINEx
236 #define __SYSCALL_DEFINEx(x, name, ...) \
238 __diag_ignore(GCC, 8, "-Wattribute-alias", \
239 "Type aliasing is used to sanitize syscall arguments");\
240 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
241 __attribute__((alias(__stringify(__se_sys##name)))); \
242 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
243 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
244 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
245 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
247 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
248 __MAP(x,__SC_TEST,__VA_ARGS__); \
249 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
253 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
254 #endif /* __SYSCALL_DEFINEx */
257 * Called before coming back to user-mode. Returning to user-mode with an
258 * address limit different than USER_DS can allow to overwrite kernel memory.
260 static inline void addr_limit_user_check(void)
263 if (!test_thread_flag(TIF_FSCHECK))
267 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS),
268 "Invalid address limit on user-mode return"))
269 force_sig(SIGKILL, current);
272 clear_thread_flag(TIF_FSCHECK);
277 * These syscall function prototypes are kept in the same order as
278 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
279 * followed by deprecated or obsolete system calls.
281 * Please note that these prototypes here are only provided for information
282 * purposes, for static analysis, and for linking from the syscall table.
283 * These functions should not be called elsewhere from kernel code.
285 * As the syscall calling convention may be different from the default
286 * for architectures overriding the syscall calling convention, do not
287 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
289 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
290 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
291 asmlinkage long sys_io_destroy(aio_context_t ctx);
292 asmlinkage long sys_io_submit(aio_context_t, long,
293 struct iocb __user * __user *);
294 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
295 struct io_event __user *result);
296 asmlinkage long sys_io_getevents(aio_context_t ctx_id,
299 struct io_event __user *events,
300 struct __kernel_timespec __user *timeout);
301 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
304 struct io_event __user *events,
305 struct __kernel_timespec __user *timeout,
306 const struct __aio_sigset *sig);
307 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
310 struct io_event __user *events,
311 struct old_timespec32 __user *timeout,
312 const struct __aio_sigset *sig);
313 asmlinkage long sys_io_uring_setup(u32 entries,
314 struct io_uring_params __user *p);
315 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
316 u32 min_complete, u32 flags,
317 const sigset_t __user *sig, size_t sigsz);
320 asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
321 const void __user *value, size_t size, int flags);
322 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
323 const void __user *value, size_t size, int flags);
324 asmlinkage long sys_fsetxattr(int fd, const char __user *name,
325 const void __user *value, size_t size, int flags);
326 asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
327 void __user *value, size_t size);
328 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
329 void __user *value, size_t size);
330 asmlinkage long sys_fgetxattr(int fd, const char __user *name,
331 void __user *value, size_t size);
332 asmlinkage long sys_listxattr(const char __user *path, char __user *list,
334 asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
336 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
337 asmlinkage long sys_removexattr(const char __user *path,
338 const char __user *name);
339 asmlinkage long sys_lremovexattr(const char __user *path,
340 const char __user *name);
341 asmlinkage long sys_fremovexattr(int fd, const char __user *name);
344 asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
347 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
350 asmlinkage long sys_eventfd2(unsigned int count, int flags);
353 asmlinkage long sys_epoll_create1(int flags);
354 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
355 struct epoll_event __user *event);
356 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
357 int maxevents, int timeout,
358 const sigset_t __user *sigmask,
362 asmlinkage long sys_dup(unsigned int fildes);
363 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
364 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
365 #if BITS_PER_LONG == 32
366 asmlinkage long sys_fcntl64(unsigned int fd,
367 unsigned int cmd, unsigned long arg);
370 /* fs/inotify_user.c */
371 asmlinkage long sys_inotify_init1(int flags);
372 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
374 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
377 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
381 asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
382 asmlinkage long sys_ioprio_get(int which, int who);
385 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
388 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
390 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
391 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
392 asmlinkage long sys_symlinkat(const char __user * oldname,
393 int newdfd, const char __user * newname);
394 asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
395 int newdfd, const char __user *newname, int flags);
396 asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
397 int newdfd, const char __user * newname);
400 asmlinkage long sys_umount(char __user *name, int flags);
401 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
402 char __user *type, unsigned long flags,
404 asmlinkage long sys_pivot_root(const char __user *new_root,
405 const char __user *put_old);
410 asmlinkage long sys_statfs(const char __user * path,
411 struct statfs __user *buf);
412 asmlinkage long sys_statfs64(const char __user *path, size_t sz,
413 struct statfs64 __user *buf);
414 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
415 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
416 struct statfs64 __user *buf);
417 asmlinkage long sys_truncate(const char __user *path, long length);
418 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
419 #if BITS_PER_LONG == 32
420 asmlinkage long sys_truncate64(const char __user *path, loff_t length);
421 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
423 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
424 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
425 asmlinkage long sys_chdir(const char __user *filename);
426 asmlinkage long sys_fchdir(unsigned int fd);
427 asmlinkage long sys_chroot(const char __user *filename);
428 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
429 asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
431 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
432 gid_t group, int flag);
433 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
434 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
436 asmlinkage long sys_close(unsigned int fd);
437 asmlinkage long sys_vhangup(void);
440 asmlinkage long sys_pipe2(int __user *fildes, int flags);
443 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
444 qid_t id, void __user *addr);
447 asmlinkage long sys_getdents64(unsigned int fd,
448 struct linux_dirent64 __user *dirent,
451 /* fs/read_write.c */
452 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
453 unsigned long offset_low, loff_t __user *result,
454 unsigned int whence);
455 asmlinkage long sys_lseek(unsigned int fd, off_t offset,
456 unsigned int whence);
457 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
458 asmlinkage long sys_write(unsigned int fd, const char __user *buf,
460 asmlinkage long sys_readv(unsigned long fd,
461 const struct iovec __user *vec,
463 asmlinkage long sys_writev(unsigned long fd,
464 const struct iovec __user *vec,
466 asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
467 size_t count, loff_t pos);
468 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
469 size_t count, loff_t pos);
470 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
471 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
472 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
473 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
476 asmlinkage long sys_sendfile64(int out_fd, int in_fd,
477 loff_t __user *offset, size_t count);
480 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
481 fd_set __user *, struct __kernel_timespec __user *,
483 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
484 fd_set __user *, struct old_timespec32 __user *,
486 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
487 struct __kernel_timespec __user *, const sigset_t __user *,
489 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
490 struct old_timespec32 __user *, const sigset_t __user *,
494 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
497 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
498 unsigned long nr_segs, unsigned int flags);
499 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
500 int fd_out, loff_t __user *off_out,
501 size_t len, unsigned int flags);
502 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
505 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
507 asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
508 struct stat __user *statbuf, int flag);
509 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
510 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
511 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
512 asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
513 struct stat64 __user *statbuf, int flag);
517 asmlinkage long sys_sync(void);
518 asmlinkage long sys_fsync(unsigned int fd);
519 asmlinkage long sys_fdatasync(unsigned int fd);
520 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
521 loff_t offset, loff_t nbytes);
522 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
526 asmlinkage long sys_timerfd_create(int clockid, int flags);
527 asmlinkage long sys_timerfd_settime(int ufd, int flags,
528 const struct __kernel_itimerspec __user *utmr,
529 struct __kernel_itimerspec __user *otmr);
530 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
533 asmlinkage long sys_utimensat(int dfd, const char __user *filename,
534 struct __kernel_timespec __user *utimes,
538 asmlinkage long sys_acct(const char __user *name);
540 /* kernel/capability.c */
541 asmlinkage long sys_capget(cap_user_header_t header,
542 cap_user_data_t dataptr);
543 asmlinkage long sys_capset(cap_user_header_t header,
544 const cap_user_data_t data);
546 /* kernel/exec_domain.c */
547 asmlinkage long sys_personality(unsigned int personality);
550 asmlinkage long sys_exit(int error_code);
551 asmlinkage long sys_exit_group(int error_code);
552 asmlinkage long sys_waitid(int which, pid_t pid,
553 struct siginfo __user *infop,
554 int options, struct rusage __user *ru);
557 asmlinkage long sys_set_tid_address(int __user *tidptr);
558 asmlinkage long sys_unshare(unsigned long unshare_flags);
561 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
562 struct __kernel_timespec __user *utime, u32 __user *uaddr2,
564 asmlinkage long sys_get_robust_list(int pid,
565 struct robust_list_head __user * __user *head_ptr,
566 size_t __user *len_ptr);
567 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
570 /* kernel/hrtimer.c */
571 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
572 struct __kernel_timespec __user *rmtp);
574 /* kernel/itimer.c */
575 asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
576 asmlinkage long sys_setitimer(int which,
577 struct itimerval __user *value,
578 struct itimerval __user *ovalue);
581 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
582 struct kexec_segment __user *segments,
583 unsigned long flags);
585 /* kernel/module.c */
586 asmlinkage long sys_init_module(void __user *umod, unsigned long len,
587 const char __user *uargs);
588 asmlinkage long sys_delete_module(const char __user *name_user,
591 /* kernel/posix-timers.c */
592 asmlinkage long sys_timer_create(clockid_t which_clock,
593 struct sigevent __user *timer_event_spec,
594 timer_t __user * created_timer_id);
595 asmlinkage long sys_timer_gettime(timer_t timer_id,
596 struct __kernel_itimerspec __user *setting);
597 asmlinkage long sys_timer_getoverrun(timer_t timer_id);
598 asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
599 const struct __kernel_itimerspec __user *new_setting,
600 struct itimerspec __user *old_setting);
601 asmlinkage long sys_timer_delete(timer_t timer_id);
602 asmlinkage long sys_clock_settime(clockid_t which_clock,
603 const struct __kernel_timespec __user *tp);
604 asmlinkage long sys_clock_gettime(clockid_t which_clock,
605 struct __kernel_timespec __user *tp);
606 asmlinkage long sys_clock_getres(clockid_t which_clock,
607 struct __kernel_timespec __user *tp);
608 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
609 const struct __kernel_timespec __user *rqtp,
610 struct __kernel_timespec __user *rmtp);
612 /* kernel/printk.c */
613 asmlinkage long sys_syslog(int type, char __user *buf, int len);
615 /* kernel/ptrace.c */
616 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
618 /* kernel/sched/core.c */
620 asmlinkage long sys_sched_setparam(pid_t pid,
621 struct sched_param __user *param);
622 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
623 struct sched_param __user *param);
624 asmlinkage long sys_sched_getscheduler(pid_t pid);
625 asmlinkage long sys_sched_getparam(pid_t pid,
626 struct sched_param __user *param);
627 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
628 unsigned long __user *user_mask_ptr);
629 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
630 unsigned long __user *user_mask_ptr);
631 asmlinkage long sys_sched_yield(void);
632 asmlinkage long sys_sched_get_priority_max(int policy);
633 asmlinkage long sys_sched_get_priority_min(int policy);
634 asmlinkage long sys_sched_rr_get_interval(pid_t pid,
635 struct __kernel_timespec __user *interval);
637 /* kernel/signal.c */
638 asmlinkage long sys_restart_syscall(void);
639 asmlinkage long sys_kill(pid_t pid, int sig);
640 asmlinkage long sys_tkill(pid_t pid, int sig);
641 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
642 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
643 struct sigaltstack __user *uoss);
644 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
645 #ifndef CONFIG_ODD_RT_SIGACTION
646 asmlinkage long sys_rt_sigaction(int,
647 const struct sigaction __user *,
648 struct sigaction __user *,
651 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
652 sigset_t __user *oset, size_t sigsetsize);
653 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
654 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
655 siginfo_t __user *uinfo,
656 const struct __kernel_timespec __user *uts,
658 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
659 siginfo_t __user *uinfo,
660 const struct old_timespec32 __user *uts,
662 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
665 asmlinkage long sys_setpriority(int which, int who, int niceval);
666 asmlinkage long sys_getpriority(int which, int who);
667 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
669 asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
670 asmlinkage long sys_setgid(gid_t gid);
671 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
672 asmlinkage long sys_setuid(uid_t uid);
673 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
674 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
675 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
676 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
677 asmlinkage long sys_setfsuid(uid_t uid);
678 asmlinkage long sys_setfsgid(gid_t gid);
679 asmlinkage long sys_times(struct tms __user *tbuf);
680 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
681 asmlinkage long sys_getpgid(pid_t pid);
682 asmlinkage long sys_getsid(pid_t pid);
683 asmlinkage long sys_setsid(void);
684 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
685 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
686 asmlinkage long sys_newuname(struct new_utsname __user *name);
687 asmlinkage long sys_sethostname(char __user *name, int len);
688 asmlinkage long sys_setdomainname(char __user *name, int len);
689 asmlinkage long sys_getrlimit(unsigned int resource,
690 struct rlimit __user *rlim);
691 asmlinkage long sys_setrlimit(unsigned int resource,
692 struct rlimit __user *rlim);
693 asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
694 asmlinkage long sys_umask(int mask);
695 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
696 unsigned long arg4, unsigned long arg5);
697 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
700 asmlinkage long sys_gettimeofday(struct timeval __user *tv,
701 struct timezone __user *tz);
702 asmlinkage long sys_settimeofday(struct timeval __user *tv,
703 struct timezone __user *tz);
704 asmlinkage long sys_adjtimex(struct timex __user *txc_p);
707 asmlinkage long sys_getpid(void);
708 asmlinkage long sys_getppid(void);
709 asmlinkage long sys_getuid(void);
710 asmlinkage long sys_geteuid(void);
711 asmlinkage long sys_getgid(void);
712 asmlinkage long sys_getegid(void);
713 asmlinkage long sys_gettid(void);
714 asmlinkage long sys_sysinfo(struct sysinfo __user *info);
717 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
718 asmlinkage long sys_mq_unlink(const char __user *name);
719 asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct __kernel_timespec __user *abs_timeout);
720 asmlinkage long sys_mq_timedreceive(mqd_t mqdes, char __user *msg_ptr, size_t msg_len, unsigned int __user *msg_prio, const struct __kernel_timespec __user *abs_timeout);
721 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
722 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
725 asmlinkage long sys_msgget(key_t key, int msgflg);
726 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
727 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
728 size_t msgsz, long msgtyp, int msgflg);
729 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
730 size_t msgsz, int msgflg);
733 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
734 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
735 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
737 const struct __kernel_timespec __user *timeout);
738 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
742 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
743 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
744 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
745 asmlinkage long sys_shmdt(char __user *shmaddr);
748 asmlinkage long sys_socket(int, int, int);
749 asmlinkage long sys_socketpair(int, int, int, int __user *);
750 asmlinkage long sys_bind(int, struct sockaddr __user *, int);
751 asmlinkage long sys_listen(int, int);
752 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
753 asmlinkage long sys_connect(int, struct sockaddr __user *, int);
754 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
755 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
756 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
757 struct sockaddr __user *, int);
758 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
759 struct sockaddr __user *, int __user *);
760 asmlinkage long sys_setsockopt(int fd, int level, int optname,
761 char __user *optval, int optlen);
762 asmlinkage long sys_getsockopt(int fd, int level, int optname,
763 char __user *optval, int __user *optlen);
764 asmlinkage long sys_shutdown(int, int);
765 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
766 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
769 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
771 /* mm/nommu.c, also with MMU */
772 asmlinkage long sys_brk(unsigned long brk);
773 asmlinkage long sys_munmap(unsigned long addr, size_t len);
774 asmlinkage long sys_mremap(unsigned long addr,
775 unsigned long old_len, unsigned long new_len,
776 unsigned long flags, unsigned long new_addr);
778 /* security/keys/keyctl.c */
779 asmlinkage long sys_add_key(const char __user *_type,
780 const char __user *_description,
781 const void __user *_payload,
783 key_serial_t destringid);
784 asmlinkage long sys_request_key(const char __user *_type,
785 const char __user *_description,
786 const char __user *_callout_info,
787 key_serial_t destringid);
788 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
789 unsigned long arg4, unsigned long arg5);
791 /* arch/example/kernel/sys_example.c */
792 #ifdef CONFIG_CLONE_BACKWARDS
793 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
796 #ifdef CONFIG_CLONE_BACKWARDS3
797 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
798 int __user *, unsigned long);
800 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
801 int __user *, unsigned long);
804 asmlinkage long sys_execve(const char __user *filename,
805 const char __user *const __user *argv,
806 const char __user *const __user *envp);
809 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
811 /* mm/, CONFIG_MMU only */
812 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
813 asmlinkage long sys_swapoff(const char __user *specialfile);
814 asmlinkage long sys_mprotect(unsigned long start, size_t len,
816 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
817 asmlinkage long sys_mlock(unsigned long start, size_t len);
818 asmlinkage long sys_munlock(unsigned long start, size_t len);
819 asmlinkage long sys_mlockall(int flags);
820 asmlinkage long sys_munlockall(void);
821 asmlinkage long sys_mincore(unsigned long start, size_t len,
822 unsigned char __user * vec);
823 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
824 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
825 unsigned long prot, unsigned long pgoff,
826 unsigned long flags);
827 asmlinkage long sys_mbind(unsigned long start, unsigned long len,
829 const unsigned long __user *nmask,
830 unsigned long maxnode,
832 asmlinkage long sys_get_mempolicy(int __user *policy,
833 unsigned long __user *nmask,
834 unsigned long maxnode,
835 unsigned long addr, unsigned long flags);
836 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
837 unsigned long maxnode);
838 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
839 const unsigned long __user *from,
840 const unsigned long __user *to);
841 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
842 const void __user * __user *pages,
843 const int __user *nodes,
847 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
848 siginfo_t __user *uinfo);
849 asmlinkage long sys_perf_event_open(
850 struct perf_event_attr __user *attr_uptr,
851 pid_t pid, int cpu, int group_fd, unsigned long flags);
852 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
853 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
854 unsigned int vlen, unsigned flags,
855 struct __kernel_timespec __user *timeout);
856 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
857 unsigned int vlen, unsigned flags,
858 struct old_timespec32 __user *timeout);
860 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
861 int options, struct rusage __user *ru);
862 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
863 const struct rlimit64 __user *new_rlim,
864 struct rlimit64 __user *old_rlim);
865 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
866 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
868 const char __user *pathname);
869 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
870 struct file_handle __user *handle,
871 int __user *mnt_id, int flag);
872 asmlinkage long sys_open_by_handle_at(int mountdirfd,
873 struct file_handle __user *handle,
875 asmlinkage long sys_clock_adjtime(clockid_t which_clock,
876 struct timex __user *tx);
877 asmlinkage long sys_syncfs(int fd);
878 asmlinkage long sys_setns(int fd, int nstype);
879 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
880 unsigned int vlen, unsigned flags);
881 asmlinkage long sys_process_vm_readv(pid_t pid,
882 const struct iovec __user *lvec,
883 unsigned long liovcnt,
884 const struct iovec __user *rvec,
885 unsigned long riovcnt,
886 unsigned long flags);
887 asmlinkage long sys_process_vm_writev(pid_t pid,
888 const struct iovec __user *lvec,
889 unsigned long liovcnt,
890 const struct iovec __user *rvec,
891 unsigned long riovcnt,
892 unsigned long flags);
893 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
894 unsigned long idx1, unsigned long idx2);
895 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
896 asmlinkage long sys_sched_setattr(pid_t pid,
897 struct sched_attr __user *attr,
899 asmlinkage long sys_sched_getattr(pid_t pid,
900 struct sched_attr __user *attr,
903 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
904 int newdfd, const char __user *newname,
906 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
908 asmlinkage long sys_getrandom(char __user *buf, size_t count,
910 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
911 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
912 asmlinkage long sys_execveat(int dfd, const char __user *filename,
913 const char __user *const __user *argv,
914 const char __user *const __user *envp, int flags);
915 asmlinkage long sys_userfaultfd(int flags);
916 asmlinkage long sys_membarrier(int cmd, int flags);
917 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
918 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
919 int fd_out, loff_t __user *off_out,
920 size_t len, unsigned int flags);
921 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
922 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
924 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
925 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
927 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
928 unsigned long prot, int pkey);
929 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
930 asmlinkage long sys_pkey_free(int pkey);
931 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
932 unsigned mask, struct statx __user *buffer);
933 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
934 int flags, uint32_t sig);
937 * Architecture-specific system calls
940 /* arch/x86/kernel/ioport.c */
941 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
943 /* pciconfig: alpha, arm, arm64, ia64, sparc */
944 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
945 unsigned long off, unsigned long len,
947 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
948 unsigned long off, unsigned long len,
950 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
953 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
954 __u32 __user *ustatus);
955 asmlinkage long sys_spu_create(const char __user *name,
956 unsigned int flags, umode_t mode, int fd);
960 * Deprecated system calls which are still defined in
961 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
964 /* __ARCH_WANT_SYSCALL_NO_AT */
965 asmlinkage long sys_open(const char __user *filename,
966 int flags, umode_t mode);
967 asmlinkage long sys_link(const char __user *oldname,
968 const char __user *newname);
969 asmlinkage long sys_unlink(const char __user *pathname);
970 asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
972 asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
973 asmlinkage long sys_chown(const char __user *filename,
974 uid_t user, gid_t group);
975 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
976 asmlinkage long sys_rmdir(const char __user *pathname);
977 asmlinkage long sys_lchown(const char __user *filename,
978 uid_t user, gid_t group);
979 asmlinkage long sys_access(const char __user *filename, int mode);
980 asmlinkage long sys_rename(const char __user *oldname,
981 const char __user *newname);
982 asmlinkage long sys_symlink(const char __user *old, const char __user *new);
983 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
984 asmlinkage long sys_stat64(const char __user *filename,
985 struct stat64 __user *statbuf);
986 asmlinkage long sys_lstat64(const char __user *filename,
987 struct stat64 __user *statbuf);
990 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
991 asmlinkage long sys_pipe(int __user *fildes);
992 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
993 asmlinkage long sys_epoll_create(int size);
994 asmlinkage long sys_inotify_init(void);
995 asmlinkage long sys_eventfd(unsigned int count);
996 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
998 /* __ARCH_WANT_SYSCALL_OFF_T */
999 asmlinkage long sys_sendfile(int out_fd, int in_fd,
1000 off_t __user *offset, size_t count);
1001 asmlinkage long sys_newstat(const char __user *filename,
1002 struct stat __user *statbuf);
1003 asmlinkage long sys_newlstat(const char __user *filename,
1004 struct stat __user *statbuf);
1005 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1007 /* __ARCH_WANT_SYSCALL_DEPRECATED */
1008 asmlinkage long sys_alarm(unsigned int seconds);
1009 asmlinkage long sys_getpgrp(void);
1010 asmlinkage long sys_pause(void);
1011 asmlinkage long sys_time(time_t __user *tloc);
1012 #ifdef __ARCH_WANT_SYS_UTIME
1013 asmlinkage long sys_utime(char __user *filename,
1014 struct utimbuf __user *times);
1015 asmlinkage long sys_utimes(char __user *filename,
1016 struct timeval __user *utimes);
1017 asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1018 struct timeval __user *utimes);
1020 asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1021 asmlinkage long sys_getdents(unsigned int fd,
1022 struct linux_dirent __user *dirent,
1023 unsigned int count);
1024 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1025 fd_set __user *exp, struct timeval __user *tvp);
1026 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1028 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1029 int maxevents, int timeout);
1030 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1031 asmlinkage long sys_vfork(void);
1032 asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1033 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1034 asmlinkage long sys_bdflush(int func, long data);
1035 asmlinkage long sys_oldumount(char __user *name);
1036 asmlinkage long sys_uselib(const char __user *library);
1037 asmlinkage long sys_sysctl(struct __sysctl_args __user *args);
1038 asmlinkage long sys_sysfs(int option,
1039 unsigned long arg1, unsigned long arg2);
1040 asmlinkage long sys_fork(void);
1042 /* obsolete: kernel/time/time.c */
1043 asmlinkage long sys_stime(time_t __user *tptr);
1045 /* obsolete: kernel/signal.c */
1046 asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1047 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1048 old_sigset_t __user *oset);
1049 #ifdef CONFIG_OLD_SIGSUSPEND
1050 asmlinkage long sys_sigsuspend(old_sigset_t mask);
1053 #ifdef CONFIG_OLD_SIGSUSPEND3
1054 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1057 #ifdef CONFIG_OLD_SIGACTION
1058 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1059 struct old_sigaction __user *);
1061 asmlinkage long sys_sgetmask(void);
1062 asmlinkage long sys_ssetmask(int newmask);
1063 asmlinkage long sys_signal(int sig, __sighandler_t handler);
1065 /* obsolete: kernel/sched/core.c */
1066 asmlinkage long sys_nice(int increment);
1068 /* obsolete: kernel/kexec_file.c */
1069 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1070 unsigned long cmdline_len,
1071 const char __user *cmdline_ptr,
1072 unsigned long flags);
1074 /* obsolete: kernel/exit.c */
1075 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1077 /* obsolete: kernel/uid16.c */
1078 #ifdef CONFIG_HAVE_UID16
1079 asmlinkage long sys_chown16(const char __user *filename,
1080 old_uid_t user, old_gid_t group);
1081 asmlinkage long sys_lchown16(const char __user *filename,
1082 old_uid_t user, old_gid_t group);
1083 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1084 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1085 asmlinkage long sys_setgid16(old_gid_t gid);
1086 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1087 asmlinkage long sys_setuid16(old_uid_t uid);
1088 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1089 asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1090 old_uid_t __user *euid, old_uid_t __user *suid);
1091 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1092 asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1093 old_gid_t __user *egid, old_gid_t __user *sgid);
1094 asmlinkage long sys_setfsuid16(old_uid_t uid);
1095 asmlinkage long sys_setfsgid16(old_gid_t gid);
1096 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1097 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1098 asmlinkage long sys_getuid16(void);
1099 asmlinkage long sys_geteuid16(void);
1100 asmlinkage long sys_getgid16(void);
1101 asmlinkage long sys_getegid16(void);
1104 /* obsolete: net/socket.c */
1105 asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1107 /* obsolete: fs/stat.c */
1108 asmlinkage long sys_stat(const char __user *filename,
1109 struct __old_kernel_stat __user *statbuf);
1110 asmlinkage long sys_lstat(const char __user *filename,
1111 struct __old_kernel_stat __user *statbuf);
1112 asmlinkage long sys_fstat(unsigned int fd,
1113 struct __old_kernel_stat __user *statbuf);
1114 asmlinkage long sys_readlink(const char __user *path,
1115 char __user *buf, int bufsiz);
1117 /* obsolete: fs/select.c */
1118 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1120 /* obsolete: fs/readdir.c */
1121 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1123 /* obsolete: kernel/sys.c */
1124 asmlinkage long sys_gethostname(char __user *name, int len);
1125 asmlinkage long sys_uname(struct old_utsname __user *);
1126 asmlinkage long sys_olduname(struct oldold_utsname __user *);
1127 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1128 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1132 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1133 unsigned long third, void __user *ptr, long fifth);
1136 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1137 unsigned long prot, unsigned long flags,
1138 unsigned long fd, unsigned long pgoff);
1139 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1143 * Not a real system call, but a placeholder for syscalls which are
1144 * not implemented -- see kernel/sys_ni.c
1146 asmlinkage long sys_ni_syscall(void);
1148 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1152 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1153 * Instead, use one of the functions which work equivalently, such as
1154 * the ksys_xyzyyz() functions prototyped below.
1157 int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type,
1158 unsigned long flags, void __user *data);
1159 int ksys_umount(char __user *name, int flags);
1160 int ksys_dup(unsigned int fildes);
1161 int ksys_chroot(const char __user *filename);
1162 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1163 int ksys_chdir(const char __user *filename);
1164 int ksys_fchmod(unsigned int fd, umode_t mode);
1165 int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1166 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent,
1167 unsigned int count);
1168 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
1169 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence);
1170 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1171 void ksys_sync(void);
1172 int ksys_unshare(unsigned long unshare_flags);
1173 int ksys_setsid(void);
1174 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1175 unsigned int flags);
1176 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1178 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1179 size_t count, loff_t pos);
1180 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1181 #ifdef CONFIG_ADVISE_SYSCALLS
1182 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1184 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1190 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1191 unsigned long prot, unsigned long flags,
1192 unsigned long fd, unsigned long pgoff);
1193 ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1196 * The following kernel syscall equivalents are just wrappers to fs-internal
1197 * functions. Therefore, provide stubs to be inlined at the callsites.
1199 extern long do_unlinkat(int dfd, struct filename *name);
1201 static inline long ksys_unlink(const char __user *pathname)
1203 return do_unlinkat(AT_FDCWD, getname(pathname));
1206 extern long do_rmdir(int dfd, const char __user *pathname);
1208 static inline long ksys_rmdir(const char __user *pathname)
1210 return do_rmdir(AT_FDCWD, pathname);
1213 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode);
1215 static inline long ksys_mkdir(const char __user *pathname, umode_t mode)
1217 return do_mkdirat(AT_FDCWD, pathname, mode);
1220 extern long do_symlinkat(const char __user *oldname, int newdfd,
1221 const char __user *newname);
1223 static inline long ksys_symlink(const char __user *oldname,
1224 const char __user *newname)
1226 return do_symlinkat(oldname, AT_FDCWD, newname);
1229 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode,
1232 static inline long ksys_mknod(const char __user *filename, umode_t mode,
1235 return do_mknodat(AT_FDCWD, filename, mode, dev);
1238 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd,
1239 const char __user *newname, int flags);
1241 static inline long ksys_link(const char __user *oldname,
1242 const char __user *newname)
1244 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0);
1247 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode);
1249 static inline int ksys_chmod(const char __user *filename, umode_t mode)
1251 return do_fchmodat(AT_FDCWD, filename, mode);
1254 extern long do_faccessat(int dfd, const char __user *filename, int mode);
1256 static inline long ksys_access(const char __user *filename, int mode)
1258 return do_faccessat(AT_FDCWD, filename, mode);
1261 extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1262 gid_t group, int flag);
1264 static inline long ksys_chown(const char __user *filename, uid_t user,
1267 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1270 static inline long ksys_lchown(const char __user *filename, uid_t user,
1273 return do_fchownat(AT_FDCWD, filename, user, group,
1274 AT_SYMLINK_NOFOLLOW);
1277 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1279 static inline long ksys_ftruncate(unsigned int fd, unsigned long length)
1281 return do_sys_ftruncate(fd, length, 1);
1284 extern int __close_fd(struct files_struct *files, unsigned int fd);
1287 * In contrast to sys_close(), this stub does not check whether the syscall
1288 * should or should not be restarted, but returns the raw error codes from
1291 static inline int ksys_close(unsigned int fd)
1293 return __close_fd(current->files, fd);
1296 extern long do_sys_open(int dfd, const char __user *filename, int flags,
1299 static inline long ksys_open(const char __user *filename, int flags,
1302 if (force_o_largefile())
1303 flags |= O_LARGEFILE;
1304 return do_sys_open(AT_FDCWD, filename, flags, mode);
1307 extern long do_sys_truncate(const char __user *pathname, loff_t length);
1309 static inline long ksys_truncate(const char __user *pathname, loff_t length)
1311 return do_sys_truncate(pathname, length);
1314 static inline unsigned int ksys_personality(unsigned int personality)
1316 unsigned int old = current->personality;
1318 if (personality != 0xffffffff)
1319 set_personality(personality);