1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * syscalls.h - Linux syscall interfaces (non-arch-specific)
5 * Copyright (c) 2004 Randy Dunlap
6 * Copyright (c) 2004 Open Source Development Labs
9 #ifndef _LINUX_SYSCALLS_H
10 #define _LINUX_SYSCALLS_H
23 struct linux_dirent64;
25 struct mmap_arg_struct;
32 struct __old_kernel_stat;
33 struct oldold_utsname;
41 struct sel_arg_struct;
55 struct __kernel_timex;
62 struct robust_list_head;
64 struct old_linux_dirent;
65 struct perf_event_attr;
70 struct io_uring_params;
72 #include <linux/types.h>
73 #include <linux/aio_abi.h>
74 #include <linux/capability.h>
75 #include <linux/signal.h>
76 #include <linux/list.h>
77 #include <linux/bug.h>
78 #include <linux/sem.h>
79 #include <asm/siginfo.h>
80 #include <linux/unistd.h>
81 #include <linux/quota.h>
82 #include <linux/key.h>
83 #include <linux/personality.h>
84 #include <trace/syscall.h>
86 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
88 * It may be useful for an architecture to override the definitions of the
89 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
90 * different calling convention for syscalls. To allow for that, the prototypes
91 * for the sys_*() functions below will *not* be included if
92 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
94 #include <asm/syscall_wrapper.h>
95 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
98 * __MAP - apply a macro to syscall arguments
99 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
100 * m(t1, a1), m(t2, a2), ..., m(tn, an)
101 * The first argument must be equal to the amount of type/name
102 * pairs given. Note that this list of pairs (i.e. the arguments
103 * of __MAP starting at the third one) is in the same format as
104 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
106 #define __MAP0(m,...)
107 #define __MAP1(m,t,a,...) m(t,a)
108 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
109 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
110 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
111 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
112 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
113 #define __MAP(n,...) __MAP##n(__VA_ARGS__)
115 #define __SC_DECL(t, a) t a
116 #define __TYPE_AS(t, v) __same_type((__force t)0, v)
117 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
118 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
119 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
120 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
121 #define __SC_CAST(t, a) (__force t) a
122 #define __SC_ARGS(t, a) a
123 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
125 #ifdef CONFIG_FTRACE_SYSCALLS
126 #define __SC_STR_ADECL(t, a) #a
127 #define __SC_STR_TDECL(t, a) #t
129 extern struct trace_event_class event_class_syscall_enter;
130 extern struct trace_event_class event_class_syscall_exit;
131 extern struct trace_event_functions enter_syscall_print_funcs;
132 extern struct trace_event_functions exit_syscall_print_funcs;
134 #define SYSCALL_TRACE_ENTER_EVENT(sname) \
135 static struct syscall_metadata __syscall_meta_##sname; \
136 static struct trace_event_call __used \
137 event_enter_##sname = { \
138 .class = &event_class_syscall_enter, \
140 .name = "sys_enter"#sname, \
142 .event.funcs = &enter_syscall_print_funcs, \
143 .data = (void *)&__syscall_meta_##sname,\
144 .flags = TRACE_EVENT_FL_CAP_ANY, \
146 static struct trace_event_call __used \
147 __attribute__((section("_ftrace_events"))) \
148 *__event_enter_##sname = &event_enter_##sname;
150 #define SYSCALL_TRACE_EXIT_EVENT(sname) \
151 static struct syscall_metadata __syscall_meta_##sname; \
152 static struct trace_event_call __used \
153 event_exit_##sname = { \
154 .class = &event_class_syscall_exit, \
156 .name = "sys_exit"#sname, \
158 .event.funcs = &exit_syscall_print_funcs, \
159 .data = (void *)&__syscall_meta_##sname,\
160 .flags = TRACE_EVENT_FL_CAP_ANY, \
162 static struct trace_event_call __used \
163 __attribute__((section("_ftrace_events"))) \
164 *__event_exit_##sname = &event_exit_##sname;
166 #define SYSCALL_METADATA(sname, nb, ...) \
167 static const char *types_##sname[] = { \
168 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
170 static const char *args_##sname[] = { \
171 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
173 SYSCALL_TRACE_ENTER_EVENT(sname); \
174 SYSCALL_TRACE_EXIT_EVENT(sname); \
175 static struct syscall_metadata __used \
176 __syscall_meta_##sname = { \
177 .name = "sys"#sname, \
178 .syscall_nr = -1, /* Filled in at boot */ \
180 .types = nb ? types_##sname : NULL, \
181 .args = nb ? args_##sname : NULL, \
182 .enter_event = &event_enter_##sname, \
183 .exit_event = &event_exit_##sname, \
184 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
186 static struct syscall_metadata __used \
187 __attribute__((section("__syscalls_metadata"))) \
188 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
190 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
192 return tp_event->class == &event_class_syscall_enter ||
193 tp_event->class == &event_class_syscall_exit;
197 #define SYSCALL_METADATA(sname, nb, ...)
199 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
205 #ifndef SYSCALL_DEFINE0
206 #define SYSCALL_DEFINE0(sname) \
207 SYSCALL_METADATA(_##sname, 0); \
208 asmlinkage long sys_##sname(void); \
209 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
210 asmlinkage long sys_##sname(void)
211 #endif /* SYSCALL_DEFINE0 */
213 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
214 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
215 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
216 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
217 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
218 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
220 #define SYSCALL_DEFINE_MAXARGS 6
222 #define SYSCALL_DEFINEx(x, sname, ...) \
223 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
224 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
226 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
229 * The asmlinkage stub is aliased to a function named __se_sys_*() which
230 * sign-extends 32-bit ints to longs whenever needed. The actual work is
231 * done within __do_sys_*().
233 #ifndef __SYSCALL_DEFINEx
234 #define __SYSCALL_DEFINEx(x, name, ...) \
236 __diag_ignore(GCC, 8, "-Wattribute-alias", \
237 "Type aliasing is used to sanitize syscall arguments");\
238 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
239 __attribute__((alias(__stringify(__se_sys##name)))); \
240 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
241 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
242 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
243 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
245 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
246 __MAP(x,__SC_TEST,__VA_ARGS__); \
247 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
251 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
252 #endif /* __SYSCALL_DEFINEx */
255 * Called before coming back to user-mode. Returning to user-mode with an
256 * address limit different than USER_DS can allow to overwrite kernel memory.
258 static inline void addr_limit_user_check(void)
261 if (!test_thread_flag(TIF_FSCHECK))
265 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS),
266 "Invalid address limit on user-mode return"))
270 clear_thread_flag(TIF_FSCHECK);
275 * These syscall function prototypes are kept in the same order as
276 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
277 * followed by deprecated or obsolete system calls.
279 * Please note that these prototypes here are only provided for information
280 * purposes, for static analysis, and for linking from the syscall table.
281 * These functions should not be called elsewhere from kernel code.
283 * As the syscall calling convention may be different from the default
284 * for architectures overriding the syscall calling convention, do not
285 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
287 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
288 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
289 asmlinkage long sys_io_destroy(aio_context_t ctx);
290 asmlinkage long sys_io_submit(aio_context_t, long,
291 struct iocb __user * __user *);
292 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
293 struct io_event __user *result);
294 asmlinkage long sys_io_getevents(aio_context_t ctx_id,
297 struct io_event __user *events,
298 struct __kernel_timespec __user *timeout);
299 asmlinkage long sys_io_getevents_time32(__u32 ctx_id,
302 struct io_event __user *events,
303 struct old_timespec32 __user *timeout);
304 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
307 struct io_event __user *events,
308 struct __kernel_timespec __user *timeout,
309 const struct __aio_sigset *sig);
310 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
313 struct io_event __user *events,
314 struct old_timespec32 __user *timeout,
315 const struct __aio_sigset *sig);
316 asmlinkage long sys_io_uring_setup(u32 entries,
317 struct io_uring_params __user *p);
318 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
319 u32 min_complete, u32 flags,
320 const sigset_t __user *sig, size_t sigsz);
321 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
322 void __user *arg, unsigned int nr_args);
325 asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
326 const void __user *value, size_t size, int flags);
327 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
328 const void __user *value, size_t size, int flags);
329 asmlinkage long sys_fsetxattr(int fd, const char __user *name,
330 const void __user *value, size_t size, int flags);
331 asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
332 void __user *value, size_t size);
333 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
334 void __user *value, size_t size);
335 asmlinkage long sys_fgetxattr(int fd, const char __user *name,
336 void __user *value, size_t size);
337 asmlinkage long sys_listxattr(const char __user *path, char __user *list,
339 asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
341 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
342 asmlinkage long sys_removexattr(const char __user *path,
343 const char __user *name);
344 asmlinkage long sys_lremovexattr(const char __user *path,
345 const char __user *name);
346 asmlinkage long sys_fremovexattr(int fd, const char __user *name);
349 asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
352 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
355 asmlinkage long sys_eventfd2(unsigned int count, int flags);
358 asmlinkage long sys_epoll_create1(int flags);
359 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
360 struct epoll_event __user *event);
361 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
362 int maxevents, int timeout,
363 const sigset_t __user *sigmask,
367 asmlinkage long sys_dup(unsigned int fildes);
368 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
369 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
370 #if BITS_PER_LONG == 32
371 asmlinkage long sys_fcntl64(unsigned int fd,
372 unsigned int cmd, unsigned long arg);
375 /* fs/inotify_user.c */
376 asmlinkage long sys_inotify_init1(int flags);
377 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
379 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
382 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
386 asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
387 asmlinkage long sys_ioprio_get(int which, int who);
390 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
393 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
395 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
396 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
397 asmlinkage long sys_symlinkat(const char __user * oldname,
398 int newdfd, const char __user * newname);
399 asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
400 int newdfd, const char __user *newname, int flags);
401 asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
402 int newdfd, const char __user * newname);
405 asmlinkage long sys_umount(char __user *name, int flags);
406 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
407 char __user *type, unsigned long flags,
409 asmlinkage long sys_pivot_root(const char __user *new_root,
410 const char __user *put_old);
415 asmlinkage long sys_statfs(const char __user * path,
416 struct statfs __user *buf);
417 asmlinkage long sys_statfs64(const char __user *path, size_t sz,
418 struct statfs64 __user *buf);
419 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
420 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
421 struct statfs64 __user *buf);
422 asmlinkage long sys_truncate(const char __user *path, long length);
423 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
424 #if BITS_PER_LONG == 32
425 asmlinkage long sys_truncate64(const char __user *path, loff_t length);
426 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
428 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
429 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
430 asmlinkage long sys_chdir(const char __user *filename);
431 asmlinkage long sys_fchdir(unsigned int fd);
432 asmlinkage long sys_chroot(const char __user *filename);
433 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
434 asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
436 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
437 gid_t group, int flag);
438 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
439 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
441 asmlinkage long sys_close(unsigned int fd);
442 asmlinkage long sys_vhangup(void);
445 asmlinkage long sys_pipe2(int __user *fildes, int flags);
448 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
449 qid_t id, void __user *addr);
452 asmlinkage long sys_getdents64(unsigned int fd,
453 struct linux_dirent64 __user *dirent,
456 /* fs/read_write.c */
457 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
458 unsigned long offset_low, loff_t __user *result,
459 unsigned int whence);
460 asmlinkage long sys_lseek(unsigned int fd, off_t offset,
461 unsigned int whence);
462 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
463 asmlinkage long sys_write(unsigned int fd, const char __user *buf,
465 asmlinkage long sys_readv(unsigned long fd,
466 const struct iovec __user *vec,
468 asmlinkage long sys_writev(unsigned long fd,
469 const struct iovec __user *vec,
471 asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
472 size_t count, loff_t pos);
473 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
474 size_t count, loff_t pos);
475 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
476 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
477 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
478 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
481 asmlinkage long sys_sendfile64(int out_fd, int in_fd,
482 loff_t __user *offset, size_t count);
485 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
486 fd_set __user *, struct __kernel_timespec __user *,
488 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
489 fd_set __user *, struct old_timespec32 __user *,
491 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
492 struct __kernel_timespec __user *, const sigset_t __user *,
494 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
495 struct old_timespec32 __user *, const sigset_t __user *,
499 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
502 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
503 unsigned long nr_segs, unsigned int flags);
504 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
505 int fd_out, loff_t __user *off_out,
506 size_t len, unsigned int flags);
507 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
510 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
512 asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
513 struct stat __user *statbuf, int flag);
514 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
515 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
516 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
517 asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
518 struct stat64 __user *statbuf, int flag);
522 asmlinkage long sys_sync(void);
523 asmlinkage long sys_fsync(unsigned int fd);
524 asmlinkage long sys_fdatasync(unsigned int fd);
525 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
526 loff_t offset, loff_t nbytes);
527 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
531 asmlinkage long sys_timerfd_create(int clockid, int flags);
532 asmlinkage long sys_timerfd_settime(int ufd, int flags,
533 const struct __kernel_itimerspec __user *utmr,
534 struct __kernel_itimerspec __user *otmr);
535 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
536 asmlinkage long sys_timerfd_gettime32(int ufd,
537 struct old_itimerspec32 __user *otmr);
538 asmlinkage long sys_timerfd_settime32(int ufd, int flags,
539 const struct old_itimerspec32 __user *utmr,
540 struct old_itimerspec32 __user *otmr);
543 asmlinkage long sys_utimensat(int dfd, const char __user *filename,
544 struct __kernel_timespec __user *utimes,
546 asmlinkage long sys_utimensat_time32(unsigned int dfd,
547 const char __user *filename,
548 struct old_timespec32 __user *t, int flags);
551 asmlinkage long sys_acct(const char __user *name);
553 /* kernel/capability.c */
554 asmlinkage long sys_capget(cap_user_header_t header,
555 cap_user_data_t dataptr);
556 asmlinkage long sys_capset(cap_user_header_t header,
557 const cap_user_data_t data);
559 /* kernel/exec_domain.c */
560 asmlinkage long sys_personality(unsigned int personality);
563 asmlinkage long sys_exit(int error_code);
564 asmlinkage long sys_exit_group(int error_code);
565 asmlinkage long sys_waitid(int which, pid_t pid,
566 struct siginfo __user *infop,
567 int options, struct rusage __user *ru);
570 asmlinkage long sys_set_tid_address(int __user *tidptr);
571 asmlinkage long sys_unshare(unsigned long unshare_flags);
574 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
575 struct __kernel_timespec __user *utime, u32 __user *uaddr2,
577 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
578 struct old_timespec32 __user *utime, u32 __user *uaddr2,
580 asmlinkage long sys_get_robust_list(int pid,
581 struct robust_list_head __user * __user *head_ptr,
582 size_t __user *len_ptr);
583 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
586 /* kernel/hrtimer.c */
587 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
588 struct __kernel_timespec __user *rmtp);
589 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
590 struct old_timespec32 __user *rmtp);
592 /* kernel/itimer.c */
593 asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
594 asmlinkage long sys_setitimer(int which,
595 struct itimerval __user *value,
596 struct itimerval __user *ovalue);
599 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
600 struct kexec_segment __user *segments,
601 unsigned long flags);
603 /* kernel/module.c */
604 asmlinkage long sys_init_module(void __user *umod, unsigned long len,
605 const char __user *uargs);
606 asmlinkage long sys_delete_module(const char __user *name_user,
609 /* kernel/posix-timers.c */
610 asmlinkage long sys_timer_create(clockid_t which_clock,
611 struct sigevent __user *timer_event_spec,
612 timer_t __user * created_timer_id);
613 asmlinkage long sys_timer_gettime(timer_t timer_id,
614 struct __kernel_itimerspec __user *setting);
615 asmlinkage long sys_timer_getoverrun(timer_t timer_id);
616 asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
617 const struct __kernel_itimerspec __user *new_setting,
618 struct __kernel_itimerspec __user *old_setting);
619 asmlinkage long sys_timer_delete(timer_t timer_id);
620 asmlinkage long sys_clock_settime(clockid_t which_clock,
621 const struct __kernel_timespec __user *tp);
622 asmlinkage long sys_clock_gettime(clockid_t which_clock,
623 struct __kernel_timespec __user *tp);
624 asmlinkage long sys_clock_getres(clockid_t which_clock,
625 struct __kernel_timespec __user *tp);
626 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
627 const struct __kernel_timespec __user *rqtp,
628 struct __kernel_timespec __user *rmtp);
629 asmlinkage long sys_timer_gettime32(timer_t timer_id,
630 struct old_itimerspec32 __user *setting);
631 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
632 struct old_itimerspec32 __user *new,
633 struct old_itimerspec32 __user *old);
634 asmlinkage long sys_clock_settime32(clockid_t which_clock,
635 struct old_timespec32 __user *tp);
636 asmlinkage long sys_clock_gettime32(clockid_t which_clock,
637 struct old_timespec32 __user *tp);
638 asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
639 struct old_timespec32 __user *tp);
640 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
641 struct old_timespec32 __user *rqtp,
642 struct old_timespec32 __user *rmtp);
644 /* kernel/printk.c */
645 asmlinkage long sys_syslog(int type, char __user *buf, int len);
647 /* kernel/ptrace.c */
648 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
650 /* kernel/sched/core.c */
652 asmlinkage long sys_sched_setparam(pid_t pid,
653 struct sched_param __user *param);
654 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
655 struct sched_param __user *param);
656 asmlinkage long sys_sched_getscheduler(pid_t pid);
657 asmlinkage long sys_sched_getparam(pid_t pid,
658 struct sched_param __user *param);
659 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
660 unsigned long __user *user_mask_ptr);
661 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
662 unsigned long __user *user_mask_ptr);
663 asmlinkage long sys_sched_yield(void);
664 asmlinkage long sys_sched_get_priority_max(int policy);
665 asmlinkage long sys_sched_get_priority_min(int policy);
666 asmlinkage long sys_sched_rr_get_interval(pid_t pid,
667 struct __kernel_timespec __user *interval);
668 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
669 struct old_timespec32 __user *interval);
671 /* kernel/signal.c */
672 asmlinkage long sys_restart_syscall(void);
673 asmlinkage long sys_kill(pid_t pid, int sig);
674 asmlinkage long sys_tkill(pid_t pid, int sig);
675 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
676 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
677 struct sigaltstack __user *uoss);
678 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
679 #ifndef CONFIG_ODD_RT_SIGACTION
680 asmlinkage long sys_rt_sigaction(int,
681 const struct sigaction __user *,
682 struct sigaction __user *,
685 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
686 sigset_t __user *oset, size_t sigsetsize);
687 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
688 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
689 siginfo_t __user *uinfo,
690 const struct __kernel_timespec __user *uts,
692 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
693 siginfo_t __user *uinfo,
694 const struct old_timespec32 __user *uts,
696 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
699 asmlinkage long sys_setpriority(int which, int who, int niceval);
700 asmlinkage long sys_getpriority(int which, int who);
701 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
703 asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
704 asmlinkage long sys_setgid(gid_t gid);
705 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
706 asmlinkage long sys_setuid(uid_t uid);
707 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
708 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
709 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
710 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
711 asmlinkage long sys_setfsuid(uid_t uid);
712 asmlinkage long sys_setfsgid(gid_t gid);
713 asmlinkage long sys_times(struct tms __user *tbuf);
714 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
715 asmlinkage long sys_getpgid(pid_t pid);
716 asmlinkage long sys_getsid(pid_t pid);
717 asmlinkage long sys_setsid(void);
718 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
719 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
720 asmlinkage long sys_newuname(struct new_utsname __user *name);
721 asmlinkage long sys_sethostname(char __user *name, int len);
722 asmlinkage long sys_setdomainname(char __user *name, int len);
723 asmlinkage long sys_getrlimit(unsigned int resource,
724 struct rlimit __user *rlim);
725 asmlinkage long sys_setrlimit(unsigned int resource,
726 struct rlimit __user *rlim);
727 asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
728 asmlinkage long sys_umask(int mask);
729 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
730 unsigned long arg4, unsigned long arg5);
731 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
734 asmlinkage long sys_gettimeofday(struct timeval __user *tv,
735 struct timezone __user *tz);
736 asmlinkage long sys_settimeofday(struct timeval __user *tv,
737 struct timezone __user *tz);
738 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
739 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
742 asmlinkage long sys_getpid(void);
743 asmlinkage long sys_getppid(void);
744 asmlinkage long sys_getuid(void);
745 asmlinkage long sys_geteuid(void);
746 asmlinkage long sys_getgid(void);
747 asmlinkage long sys_getegid(void);
748 asmlinkage long sys_gettid(void);
749 asmlinkage long sys_sysinfo(struct sysinfo __user *info);
752 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
753 asmlinkage long sys_mq_unlink(const char __user *name);
754 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);
755 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);
756 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
757 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
758 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
759 char __user *u_msg_ptr,
760 unsigned int msg_len, unsigned int __user *u_msg_prio,
761 const struct old_timespec32 __user *u_abs_timeout);
762 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
763 const char __user *u_msg_ptr,
764 unsigned int msg_len, unsigned int msg_prio,
765 const struct old_timespec32 __user *u_abs_timeout);
768 asmlinkage long sys_msgget(key_t key, int msgflg);
769 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
770 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
771 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
772 size_t msgsz, long msgtyp, int msgflg);
773 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
774 size_t msgsz, int msgflg);
777 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
778 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
779 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
780 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
782 const struct __kernel_timespec __user *timeout);
783 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
785 const struct old_timespec32 __user *timeout);
786 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
790 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
791 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
792 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
793 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
794 asmlinkage long sys_shmdt(char __user *shmaddr);
797 asmlinkage long sys_socket(int, int, int);
798 asmlinkage long sys_socketpair(int, int, int, int __user *);
799 asmlinkage long sys_bind(int, struct sockaddr __user *, int);
800 asmlinkage long sys_listen(int, int);
801 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
802 asmlinkage long sys_connect(int, struct sockaddr __user *, int);
803 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
804 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
805 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
806 struct sockaddr __user *, int);
807 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
808 struct sockaddr __user *, int __user *);
809 asmlinkage long sys_setsockopt(int fd, int level, int optname,
810 char __user *optval, int optlen);
811 asmlinkage long sys_getsockopt(int fd, int level, int optname,
812 char __user *optval, int __user *optlen);
813 asmlinkage long sys_shutdown(int, int);
814 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
815 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
818 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
820 /* mm/nommu.c, also with MMU */
821 asmlinkage long sys_brk(unsigned long brk);
822 asmlinkage long sys_munmap(unsigned long addr, size_t len);
823 asmlinkage long sys_mremap(unsigned long addr,
824 unsigned long old_len, unsigned long new_len,
825 unsigned long flags, unsigned long new_addr);
827 /* security/keys/keyctl.c */
828 asmlinkage long sys_add_key(const char __user *_type,
829 const char __user *_description,
830 const void __user *_payload,
832 key_serial_t destringid);
833 asmlinkage long sys_request_key(const char __user *_type,
834 const char __user *_description,
835 const char __user *_callout_info,
836 key_serial_t destringid);
837 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
838 unsigned long arg4, unsigned long arg5);
840 /* arch/example/kernel/sys_example.c */
841 #ifdef CONFIG_CLONE_BACKWARDS
842 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
845 #ifdef CONFIG_CLONE_BACKWARDS3
846 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
847 int __user *, unsigned long);
849 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
850 int __user *, unsigned long);
853 asmlinkage long sys_execve(const char __user *filename,
854 const char __user *const __user *argv,
855 const char __user *const __user *envp);
858 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
860 /* mm/, CONFIG_MMU only */
861 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
862 asmlinkage long sys_swapoff(const char __user *specialfile);
863 asmlinkage long sys_mprotect(unsigned long start, size_t len,
865 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
866 asmlinkage long sys_mlock(unsigned long start, size_t len);
867 asmlinkage long sys_munlock(unsigned long start, size_t len);
868 asmlinkage long sys_mlockall(int flags);
869 asmlinkage long sys_munlockall(void);
870 asmlinkage long sys_mincore(unsigned long start, size_t len,
871 unsigned char __user * vec);
872 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
873 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
874 unsigned long prot, unsigned long pgoff,
875 unsigned long flags);
876 asmlinkage long sys_mbind(unsigned long start, unsigned long len,
878 const unsigned long __user *nmask,
879 unsigned long maxnode,
881 asmlinkage long sys_get_mempolicy(int __user *policy,
882 unsigned long __user *nmask,
883 unsigned long maxnode,
884 unsigned long addr, unsigned long flags);
885 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
886 unsigned long maxnode);
887 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
888 const unsigned long __user *from,
889 const unsigned long __user *to);
890 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
891 const void __user * __user *pages,
892 const int __user *nodes,
896 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
897 siginfo_t __user *uinfo);
898 asmlinkage long sys_perf_event_open(
899 struct perf_event_attr __user *attr_uptr,
900 pid_t pid, int cpu, int group_fd, unsigned long flags);
901 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
902 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
903 unsigned int vlen, unsigned flags,
904 struct __kernel_timespec __user *timeout);
905 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
906 unsigned int vlen, unsigned flags,
907 struct old_timespec32 __user *timeout);
909 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
910 int options, struct rusage __user *ru);
911 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
912 const struct rlimit64 __user *new_rlim,
913 struct rlimit64 __user *old_rlim);
914 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
915 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
917 const char __user *pathname);
918 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
919 struct file_handle __user *handle,
920 int __user *mnt_id, int flag);
921 asmlinkage long sys_open_by_handle_at(int mountdirfd,
922 struct file_handle __user *handle,
924 asmlinkage long sys_clock_adjtime(clockid_t which_clock,
925 struct __kernel_timex __user *tx);
926 asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
927 struct old_timex32 __user *tx);
928 asmlinkage long sys_syncfs(int fd);
929 asmlinkage long sys_setns(int fd, int nstype);
930 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
931 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
932 unsigned int vlen, unsigned flags);
933 asmlinkage long sys_process_vm_readv(pid_t pid,
934 const struct iovec __user *lvec,
935 unsigned long liovcnt,
936 const struct iovec __user *rvec,
937 unsigned long riovcnt,
938 unsigned long flags);
939 asmlinkage long sys_process_vm_writev(pid_t pid,
940 const struct iovec __user *lvec,
941 unsigned long liovcnt,
942 const struct iovec __user *rvec,
943 unsigned long riovcnt,
944 unsigned long flags);
945 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
946 unsigned long idx1, unsigned long idx2);
947 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
948 asmlinkage long sys_sched_setattr(pid_t pid,
949 struct sched_attr __user *attr,
951 asmlinkage long sys_sched_getattr(pid_t pid,
952 struct sched_attr __user *attr,
955 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
956 int newdfd, const char __user *newname,
958 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
960 asmlinkage long sys_getrandom(char __user *buf, size_t count,
962 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
963 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
964 asmlinkage long sys_execveat(int dfd, const char __user *filename,
965 const char __user *const __user *argv,
966 const char __user *const __user *envp, int flags);
967 asmlinkage long sys_userfaultfd(int flags);
968 asmlinkage long sys_membarrier(int cmd, int flags);
969 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
970 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
971 int fd_out, loff_t __user *off_out,
972 size_t len, unsigned int flags);
973 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
974 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
976 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
977 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
979 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
980 unsigned long prot, int pkey);
981 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
982 asmlinkage long sys_pkey_free(int pkey);
983 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
984 unsigned mask, struct statx __user *buffer);
985 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
986 int flags, uint32_t sig);
987 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
988 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
989 int to_dfd, const char __user *to_path,
990 unsigned int ms_flags);
991 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
992 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
993 const void __user *value, int aux);
994 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
995 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
996 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
997 siginfo_t __user *info,
1001 * Architecture-specific system calls
1004 /* arch/x86/kernel/ioport.c */
1005 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
1007 /* pciconfig: alpha, arm, arm64, ia64, sparc */
1008 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
1009 unsigned long off, unsigned long len,
1011 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
1012 unsigned long off, unsigned long len,
1014 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
1017 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
1018 __u32 __user *ustatus);
1019 asmlinkage long sys_spu_create(const char __user *name,
1020 unsigned int flags, umode_t mode, int fd);
1024 * Deprecated system calls which are still defined in
1025 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
1028 /* __ARCH_WANT_SYSCALL_NO_AT */
1029 asmlinkage long sys_open(const char __user *filename,
1030 int flags, umode_t mode);
1031 asmlinkage long sys_link(const char __user *oldname,
1032 const char __user *newname);
1033 asmlinkage long sys_unlink(const char __user *pathname);
1034 asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
1036 asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
1037 asmlinkage long sys_chown(const char __user *filename,
1038 uid_t user, gid_t group);
1039 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
1040 asmlinkage long sys_rmdir(const char __user *pathname);
1041 asmlinkage long sys_lchown(const char __user *filename,
1042 uid_t user, gid_t group);
1043 asmlinkage long sys_access(const char __user *filename, int mode);
1044 asmlinkage long sys_rename(const char __user *oldname,
1045 const char __user *newname);
1046 asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1047 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1048 asmlinkage long sys_stat64(const char __user *filename,
1049 struct stat64 __user *statbuf);
1050 asmlinkage long sys_lstat64(const char __user *filename,
1051 struct stat64 __user *statbuf);
1054 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
1055 asmlinkage long sys_pipe(int __user *fildes);
1056 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1057 asmlinkage long sys_epoll_create(int size);
1058 asmlinkage long sys_inotify_init(void);
1059 asmlinkage long sys_eventfd(unsigned int count);
1060 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1062 /* __ARCH_WANT_SYSCALL_OFF_T */
1063 asmlinkage long sys_sendfile(int out_fd, int in_fd,
1064 off_t __user *offset, size_t count);
1065 asmlinkage long sys_newstat(const char __user *filename,
1066 struct stat __user *statbuf);
1067 asmlinkage long sys_newlstat(const char __user *filename,
1068 struct stat __user *statbuf);
1069 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1071 /* __ARCH_WANT_SYSCALL_DEPRECATED */
1072 asmlinkage long sys_alarm(unsigned int seconds);
1073 asmlinkage long sys_getpgrp(void);
1074 asmlinkage long sys_pause(void);
1075 asmlinkage long sys_time(time_t __user *tloc);
1076 asmlinkage long sys_time32(old_time32_t __user *tloc);
1077 #ifdef __ARCH_WANT_SYS_UTIME
1078 asmlinkage long sys_utime(char __user *filename,
1079 struct utimbuf __user *times);
1080 asmlinkage long sys_utimes(char __user *filename,
1081 struct timeval __user *utimes);
1082 asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1083 struct timeval __user *utimes);
1085 asmlinkage long sys_futimesat_time32(unsigned int dfd,
1086 const char __user *filename,
1087 struct old_timeval32 __user *t);
1088 asmlinkage long sys_utime32(const char __user *filename,
1089 struct old_utimbuf32 __user *t);
1090 asmlinkage long sys_utimes_time32(const char __user *filename,
1091 struct old_timeval32 __user *t);
1092 asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1093 asmlinkage long sys_getdents(unsigned int fd,
1094 struct linux_dirent __user *dirent,
1095 unsigned int count);
1096 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1097 fd_set __user *exp, struct timeval __user *tvp);
1098 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1100 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1101 int maxevents, int timeout);
1102 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1103 asmlinkage long sys_vfork(void);
1104 asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1105 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1106 asmlinkage long sys_bdflush(int func, long data);
1107 asmlinkage long sys_oldumount(char __user *name);
1108 asmlinkage long sys_uselib(const char __user *library);
1109 asmlinkage long sys_sysctl(struct __sysctl_args __user *args);
1110 asmlinkage long sys_sysfs(int option,
1111 unsigned long arg1, unsigned long arg2);
1112 asmlinkage long sys_fork(void);
1114 /* obsolete: kernel/time/time.c */
1115 asmlinkage long sys_stime(time_t __user *tptr);
1116 asmlinkage long sys_stime32(old_time32_t __user *tptr);
1118 /* obsolete: kernel/signal.c */
1119 asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1120 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1121 old_sigset_t __user *oset);
1122 #ifdef CONFIG_OLD_SIGSUSPEND
1123 asmlinkage long sys_sigsuspend(old_sigset_t mask);
1126 #ifdef CONFIG_OLD_SIGSUSPEND3
1127 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1130 #ifdef CONFIG_OLD_SIGACTION
1131 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1132 struct old_sigaction __user *);
1134 asmlinkage long sys_sgetmask(void);
1135 asmlinkage long sys_ssetmask(int newmask);
1136 asmlinkage long sys_signal(int sig, __sighandler_t handler);
1138 /* obsolete: kernel/sched/core.c */
1139 asmlinkage long sys_nice(int increment);
1141 /* obsolete: kernel/kexec_file.c */
1142 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1143 unsigned long cmdline_len,
1144 const char __user *cmdline_ptr,
1145 unsigned long flags);
1147 /* obsolete: kernel/exit.c */
1148 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1150 /* obsolete: kernel/uid16.c */
1151 #ifdef CONFIG_HAVE_UID16
1152 asmlinkage long sys_chown16(const char __user *filename,
1153 old_uid_t user, old_gid_t group);
1154 asmlinkage long sys_lchown16(const char __user *filename,
1155 old_uid_t user, old_gid_t group);
1156 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1157 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1158 asmlinkage long sys_setgid16(old_gid_t gid);
1159 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1160 asmlinkage long sys_setuid16(old_uid_t uid);
1161 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1162 asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1163 old_uid_t __user *euid, old_uid_t __user *suid);
1164 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1165 asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1166 old_gid_t __user *egid, old_gid_t __user *sgid);
1167 asmlinkage long sys_setfsuid16(old_uid_t uid);
1168 asmlinkage long sys_setfsgid16(old_gid_t gid);
1169 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1170 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1171 asmlinkage long sys_getuid16(void);
1172 asmlinkage long sys_geteuid16(void);
1173 asmlinkage long sys_getgid16(void);
1174 asmlinkage long sys_getegid16(void);
1177 /* obsolete: net/socket.c */
1178 asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1180 /* obsolete: fs/stat.c */
1181 asmlinkage long sys_stat(const char __user *filename,
1182 struct __old_kernel_stat __user *statbuf);
1183 asmlinkage long sys_lstat(const char __user *filename,
1184 struct __old_kernel_stat __user *statbuf);
1185 asmlinkage long sys_fstat(unsigned int fd,
1186 struct __old_kernel_stat __user *statbuf);
1187 asmlinkage long sys_readlink(const char __user *path,
1188 char __user *buf, int bufsiz);
1190 /* obsolete: fs/select.c */
1191 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1193 /* obsolete: fs/readdir.c */
1194 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1196 /* obsolete: kernel/sys.c */
1197 asmlinkage long sys_gethostname(char __user *name, int len);
1198 asmlinkage long sys_uname(struct old_utsname __user *);
1199 asmlinkage long sys_olduname(struct oldold_utsname __user *);
1200 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1201 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1205 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1206 unsigned long third, void __user *ptr, long fifth);
1209 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1210 unsigned long prot, unsigned long flags,
1211 unsigned long fd, unsigned long pgoff);
1212 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1216 * Not a real system call, but a placeholder for syscalls which are
1217 * not implemented -- see kernel/sys_ni.c
1219 asmlinkage long sys_ni_syscall(void);
1221 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1225 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1226 * Instead, use one of the functions which work equivalently, such as
1227 * the ksys_xyzyyz() functions prototyped below.
1230 int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type,
1231 unsigned long flags, void __user *data);
1232 int ksys_umount(char __user *name, int flags);
1233 int ksys_dup(unsigned int fildes);
1234 int ksys_chroot(const char __user *filename);
1235 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1236 int ksys_chdir(const char __user *filename);
1237 int ksys_fchmod(unsigned int fd, umode_t mode);
1238 int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1239 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent,
1240 unsigned int count);
1241 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
1242 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence);
1243 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1244 void ksys_sync(void);
1245 int ksys_unshare(unsigned long unshare_flags);
1246 int ksys_setsid(void);
1247 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1248 unsigned int flags);
1249 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1251 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1252 size_t count, loff_t pos);
1253 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1254 #ifdef CONFIG_ADVISE_SYSCALLS
1255 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1257 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1263 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1264 unsigned long prot, unsigned long flags,
1265 unsigned long fd, unsigned long pgoff);
1266 ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1267 int ksys_ipc(unsigned int call, int first, unsigned long second,
1268 unsigned long third, void __user * ptr, long fifth);
1269 int compat_ksys_ipc(u32 call, int first, int second,
1270 u32 third, u32 ptr, u32 fifth);
1273 * The following kernel syscall equivalents are just wrappers to fs-internal
1274 * functions. Therefore, provide stubs to be inlined at the callsites.
1276 extern long do_unlinkat(int dfd, struct filename *name);
1278 static inline long ksys_unlink(const char __user *pathname)
1280 return do_unlinkat(AT_FDCWD, getname(pathname));
1283 extern long do_rmdir(int dfd, const char __user *pathname);
1285 static inline long ksys_rmdir(const char __user *pathname)
1287 return do_rmdir(AT_FDCWD, pathname);
1290 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode);
1292 static inline long ksys_mkdir(const char __user *pathname, umode_t mode)
1294 return do_mkdirat(AT_FDCWD, pathname, mode);
1297 extern long do_symlinkat(const char __user *oldname, int newdfd,
1298 const char __user *newname);
1300 static inline long ksys_symlink(const char __user *oldname,
1301 const char __user *newname)
1303 return do_symlinkat(oldname, AT_FDCWD, newname);
1306 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode,
1309 static inline long ksys_mknod(const char __user *filename, umode_t mode,
1312 return do_mknodat(AT_FDCWD, filename, mode, dev);
1315 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd,
1316 const char __user *newname, int flags);
1318 static inline long ksys_link(const char __user *oldname,
1319 const char __user *newname)
1321 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0);
1324 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode);
1326 static inline int ksys_chmod(const char __user *filename, umode_t mode)
1328 return do_fchmodat(AT_FDCWD, filename, mode);
1331 extern long do_faccessat(int dfd, const char __user *filename, int mode);
1333 static inline long ksys_access(const char __user *filename, int mode)
1335 return do_faccessat(AT_FDCWD, filename, mode);
1338 extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1339 gid_t group, int flag);
1341 static inline long ksys_chown(const char __user *filename, uid_t user,
1344 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1347 static inline long ksys_lchown(const char __user *filename, uid_t user,
1350 return do_fchownat(AT_FDCWD, filename, user, group,
1351 AT_SYMLINK_NOFOLLOW);
1354 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1356 static inline long ksys_ftruncate(unsigned int fd, unsigned long length)
1358 return do_sys_ftruncate(fd, length, 1);
1361 extern int __close_fd(struct files_struct *files, unsigned int fd);
1364 * In contrast to sys_close(), this stub does not check whether the syscall
1365 * should or should not be restarted, but returns the raw error codes from
1368 static inline int ksys_close(unsigned int fd)
1370 return __close_fd(current->files, fd);
1373 extern long do_sys_open(int dfd, const char __user *filename, int flags,
1376 static inline long ksys_open(const char __user *filename, int flags,
1379 if (force_o_largefile())
1380 flags |= O_LARGEFILE;
1381 return do_sys_open(AT_FDCWD, filename, flags, mode);
1384 extern long do_sys_truncate(const char __user *pathname, loff_t length);
1386 static inline long ksys_truncate(const char __user *pathname, loff_t length)
1388 return do_sys_truncate(pathname, length);
1391 static inline unsigned int ksys_personality(unsigned int personality)
1393 unsigned int old = current->personality;
1395 if (personality != 0xffffffff)
1396 set_personality(personality);