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
19 struct __kernel_old_itimerval;
22 struct linux_dirent64;
24 struct mmap_arg_struct;
31 struct __old_kernel_stat;
32 struct oldold_utsname;
40 struct sel_arg_struct;
53 struct __kernel_old_timeval;
54 struct __kernel_timex;
61 struct robust_list_head;
63 struct old_linux_dirent;
64 struct perf_event_attr;
69 struct io_uring_params;
73 #include <linux/types.h>
74 #include <linux/aio_abi.h>
75 #include <linux/capability.h>
76 #include <linux/signal.h>
77 #include <linux/list.h>
78 #include <linux/bug.h>
79 #include <linux/sem.h>
80 #include <asm/siginfo.h>
81 #include <linux/unistd.h>
82 #include <linux/quota.h>
83 #include <linux/key.h>
84 #include <linux/personality.h>
85 #include <trace/syscall.h>
87 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
89 * It may be useful for an architecture to override the definitions of the
90 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
91 * different calling convention for syscalls. To allow for that, the prototypes
92 * for the sys_*() functions below will *not* be included if
93 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
95 #include <asm/syscall_wrapper.h>
96 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
99 * __MAP - apply a macro to syscall arguments
100 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
101 * m(t1, a1), m(t2, a2), ..., m(tn, an)
102 * The first argument must be equal to the amount of type/name
103 * pairs given. Note that this list of pairs (i.e. the arguments
104 * of __MAP starting at the third one) is in the same format as
105 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
107 #define __MAP0(m,...)
108 #define __MAP1(m,t,a,...) m(t,a)
109 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
110 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
111 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
112 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
113 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
114 #define __MAP(n,...) __MAP##n(__VA_ARGS__)
116 #define __SC_DECL(t, a) t a
117 #define __TYPE_AS(t, v) __same_type((__force t)0, v)
118 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
119 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
120 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
121 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
122 #define __SC_CAST(t, a) (__force t) a
123 #define __SC_ARGS(t, a) a
124 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
126 #ifdef CONFIG_FTRACE_SYSCALLS
127 #define __SC_STR_ADECL(t, a) #a
128 #define __SC_STR_TDECL(t, a) #t
130 extern struct trace_event_class event_class_syscall_enter;
131 extern struct trace_event_class event_class_syscall_exit;
132 extern struct trace_event_functions enter_syscall_print_funcs;
133 extern struct trace_event_functions exit_syscall_print_funcs;
135 #define SYSCALL_TRACE_ENTER_EVENT(sname) \
136 static struct syscall_metadata __syscall_meta_##sname; \
137 static struct trace_event_call __used \
138 event_enter_##sname = { \
139 .class = &event_class_syscall_enter, \
141 .name = "sys_enter"#sname, \
143 .event.funcs = &enter_syscall_print_funcs, \
144 .data = (void *)&__syscall_meta_##sname,\
145 .flags = TRACE_EVENT_FL_CAP_ANY, \
147 static struct trace_event_call __used \
148 __attribute__((section("_ftrace_events"))) \
149 *__event_enter_##sname = &event_enter_##sname;
151 #define SYSCALL_TRACE_EXIT_EVENT(sname) \
152 static struct syscall_metadata __syscall_meta_##sname; \
153 static struct trace_event_call __used \
154 event_exit_##sname = { \
155 .class = &event_class_syscall_exit, \
157 .name = "sys_exit"#sname, \
159 .event.funcs = &exit_syscall_print_funcs, \
160 .data = (void *)&__syscall_meta_##sname,\
161 .flags = TRACE_EVENT_FL_CAP_ANY, \
163 static struct trace_event_call __used \
164 __attribute__((section("_ftrace_events"))) \
165 *__event_exit_##sname = &event_exit_##sname;
167 #define SYSCALL_METADATA(sname, nb, ...) \
168 static const char *types_##sname[] = { \
169 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
171 static const char *args_##sname[] = { \
172 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
174 SYSCALL_TRACE_ENTER_EVENT(sname); \
175 SYSCALL_TRACE_EXIT_EVENT(sname); \
176 static struct syscall_metadata __used \
177 __syscall_meta_##sname = { \
178 .name = "sys"#sname, \
179 .syscall_nr = -1, /* Filled in at boot */ \
181 .types = nb ? types_##sname : NULL, \
182 .args = nb ? args_##sname : NULL, \
183 .enter_event = &event_enter_##sname, \
184 .exit_event = &event_exit_##sname, \
185 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
187 static struct syscall_metadata __used \
188 __attribute__((section("__syscalls_metadata"))) \
189 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
191 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
193 return tp_event->class == &event_class_syscall_enter ||
194 tp_event->class == &event_class_syscall_exit;
198 #define SYSCALL_METADATA(sname, nb, ...)
200 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
206 #ifndef SYSCALL_DEFINE0
207 #define SYSCALL_DEFINE0(sname) \
208 SYSCALL_METADATA(_##sname, 0); \
209 asmlinkage long sys_##sname(void); \
210 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
211 asmlinkage long sys_##sname(void)
212 #endif /* SYSCALL_DEFINE0 */
214 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
215 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
216 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
217 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
218 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
219 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
221 #define SYSCALL_DEFINE_MAXARGS 6
223 #define SYSCALL_DEFINEx(x, sname, ...) \
224 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
225 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
227 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
230 * The asmlinkage stub is aliased to a function named __se_sys_*() which
231 * sign-extends 32-bit ints to longs whenever needed. The actual work is
232 * done within __do_sys_*().
234 #ifndef __SYSCALL_DEFINEx
235 #define __SYSCALL_DEFINEx(x, name, ...) \
237 __diag_ignore(GCC, 8, "-Wattribute-alias", \
238 "Type aliasing is used to sanitize syscall arguments");\
239 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
240 __attribute__((alias(__stringify(__se_sys##name)))); \
241 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
242 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
243 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
244 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
246 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
247 __MAP(x,__SC_TEST,__VA_ARGS__); \
248 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
252 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
253 #endif /* __SYSCALL_DEFINEx */
256 * Called before coming back to user-mode. Returning to user-mode with an
257 * address limit different than USER_DS can allow to overwrite kernel memory.
259 static inline void addr_limit_user_check(void)
262 if (!test_thread_flag(TIF_FSCHECK))
266 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS),
267 "Invalid address limit on user-mode return"))
271 clear_thread_flag(TIF_FSCHECK);
276 * These syscall function prototypes are kept in the same order as
277 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
278 * followed by deprecated or obsolete system calls.
280 * Please note that these prototypes here are only provided for information
281 * purposes, for static analysis, and for linking from the syscall table.
282 * These functions should not be called elsewhere from kernel code.
284 * As the syscall calling convention may be different from the default
285 * for architectures overriding the syscall calling convention, do not
286 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
288 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
289 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
290 asmlinkage long sys_io_destroy(aio_context_t ctx);
291 asmlinkage long sys_io_submit(aio_context_t, long,
292 struct iocb __user * __user *);
293 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
294 struct io_event __user *result);
295 asmlinkage long sys_io_getevents(aio_context_t ctx_id,
298 struct io_event __user *events,
299 struct __kernel_timespec __user *timeout);
300 asmlinkage long sys_io_getevents_time32(__u32 ctx_id,
303 struct io_event __user *events,
304 struct old_timespec32 __user *timeout);
305 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
308 struct io_event __user *events,
309 struct __kernel_timespec __user *timeout,
310 const struct __aio_sigset *sig);
311 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
314 struct io_event __user *events,
315 struct old_timespec32 __user *timeout,
316 const struct __aio_sigset *sig);
317 asmlinkage long sys_io_uring_setup(u32 entries,
318 struct io_uring_params __user *p);
319 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
320 u32 min_complete, u32 flags,
321 const sigset_t __user *sig, size_t sigsz);
322 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
323 void __user *arg, unsigned int nr_args);
326 asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
327 const void __user *value, size_t size, int flags);
328 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
329 const void __user *value, size_t size, int flags);
330 asmlinkage long sys_fsetxattr(int fd, const char __user *name,
331 const void __user *value, size_t size, int flags);
332 asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
333 void __user *value, size_t size);
334 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
335 void __user *value, size_t size);
336 asmlinkage long sys_fgetxattr(int fd, const char __user *name,
337 void __user *value, size_t size);
338 asmlinkage long sys_listxattr(const char __user *path, char __user *list,
340 asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
342 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
343 asmlinkage long sys_removexattr(const char __user *path,
344 const char __user *name);
345 asmlinkage long sys_lremovexattr(const char __user *path,
346 const char __user *name);
347 asmlinkage long sys_fremovexattr(int fd, const char __user *name);
350 asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
353 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
356 asmlinkage long sys_eventfd2(unsigned int count, int flags);
359 asmlinkage long sys_epoll_create1(int flags);
360 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
361 struct epoll_event __user *event);
362 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
363 int maxevents, int timeout,
364 const sigset_t __user *sigmask,
368 asmlinkage long sys_dup(unsigned int fildes);
369 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
370 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
371 #if BITS_PER_LONG == 32
372 asmlinkage long sys_fcntl64(unsigned int fd,
373 unsigned int cmd, unsigned long arg);
376 /* fs/inotify_user.c */
377 asmlinkage long sys_inotify_init1(int flags);
378 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
380 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
383 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
387 asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
388 asmlinkage long sys_ioprio_get(int which, int who);
391 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
394 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
396 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
397 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
398 asmlinkage long sys_symlinkat(const char __user * oldname,
399 int newdfd, const char __user * newname);
400 asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
401 int newdfd, const char __user *newname, int flags);
402 asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
403 int newdfd, const char __user * newname);
406 asmlinkage long sys_umount(char __user *name, int flags);
407 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
408 char __user *type, unsigned long flags,
410 asmlinkage long sys_pivot_root(const char __user *new_root,
411 const char __user *put_old);
416 asmlinkage long sys_statfs(const char __user * path,
417 struct statfs __user *buf);
418 asmlinkage long sys_statfs64(const char __user *path, size_t sz,
419 struct statfs64 __user *buf);
420 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
421 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
422 struct statfs64 __user *buf);
423 asmlinkage long sys_truncate(const char __user *path, long length);
424 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
425 #if BITS_PER_LONG == 32
426 asmlinkage long sys_truncate64(const char __user *path, loff_t length);
427 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
429 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
430 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
431 asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode,
433 asmlinkage long sys_chdir(const char __user *filename);
434 asmlinkage long sys_fchdir(unsigned int fd);
435 asmlinkage long sys_chroot(const char __user *filename);
436 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
437 asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
439 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
440 gid_t group, int flag);
441 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
442 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
444 asmlinkage long sys_openat2(int dfd, const char __user *filename,
445 struct open_how *how, size_t size);
446 asmlinkage long sys_close(unsigned int fd);
447 asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd,
449 asmlinkage long sys_vhangup(void);
452 asmlinkage long sys_pipe2(int __user *fildes, int flags);
455 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
456 qid_t id, void __user *addr);
459 asmlinkage long sys_getdents64(unsigned int fd,
460 struct linux_dirent64 __user *dirent,
463 /* fs/read_write.c */
464 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
465 unsigned long offset_low, loff_t __user *result,
466 unsigned int whence);
467 asmlinkage long sys_lseek(unsigned int fd, off_t offset,
468 unsigned int whence);
469 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
470 asmlinkage long sys_write(unsigned int fd, const char __user *buf,
472 asmlinkage long sys_readv(unsigned long fd,
473 const struct iovec __user *vec,
475 asmlinkage long sys_writev(unsigned long fd,
476 const struct iovec __user *vec,
478 asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
479 size_t count, loff_t pos);
480 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
481 size_t count, loff_t pos);
482 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
483 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
484 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
485 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
488 asmlinkage long sys_sendfile64(int out_fd, int in_fd,
489 loff_t __user *offset, size_t count);
492 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
493 fd_set __user *, struct __kernel_timespec __user *,
495 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
496 fd_set __user *, struct old_timespec32 __user *,
498 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
499 struct __kernel_timespec __user *, const sigset_t __user *,
501 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
502 struct old_timespec32 __user *, const sigset_t __user *,
506 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
509 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
510 unsigned long nr_segs, unsigned int flags);
511 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
512 int fd_out, loff_t __user *off_out,
513 size_t len, unsigned int flags);
514 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
517 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
519 asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
520 struct stat __user *statbuf, int flag);
521 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
522 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
523 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
524 asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
525 struct stat64 __user *statbuf, int flag);
529 asmlinkage long sys_sync(void);
530 asmlinkage long sys_fsync(unsigned int fd);
531 asmlinkage long sys_fdatasync(unsigned int fd);
532 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
533 loff_t offset, loff_t nbytes);
534 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
538 asmlinkage long sys_timerfd_create(int clockid, int flags);
539 asmlinkage long sys_timerfd_settime(int ufd, int flags,
540 const struct __kernel_itimerspec __user *utmr,
541 struct __kernel_itimerspec __user *otmr);
542 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
543 asmlinkage long sys_timerfd_gettime32(int ufd,
544 struct old_itimerspec32 __user *otmr);
545 asmlinkage long sys_timerfd_settime32(int ufd, int flags,
546 const struct old_itimerspec32 __user *utmr,
547 struct old_itimerspec32 __user *otmr);
550 asmlinkage long sys_utimensat(int dfd, const char __user *filename,
551 struct __kernel_timespec __user *utimes,
553 asmlinkage long sys_utimensat_time32(unsigned int dfd,
554 const char __user *filename,
555 struct old_timespec32 __user *t, int flags);
558 asmlinkage long sys_acct(const char __user *name);
560 /* kernel/capability.c */
561 asmlinkage long sys_capget(cap_user_header_t header,
562 cap_user_data_t dataptr);
563 asmlinkage long sys_capset(cap_user_header_t header,
564 const cap_user_data_t data);
566 /* kernel/exec_domain.c */
567 asmlinkage long sys_personality(unsigned int personality);
570 asmlinkage long sys_exit(int error_code);
571 asmlinkage long sys_exit_group(int error_code);
572 asmlinkage long sys_waitid(int which, pid_t pid,
573 struct siginfo __user *infop,
574 int options, struct rusage __user *ru);
577 asmlinkage long sys_set_tid_address(int __user *tidptr);
578 asmlinkage long sys_unshare(unsigned long unshare_flags);
581 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
582 struct __kernel_timespec __user *utime, u32 __user *uaddr2,
584 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
585 struct old_timespec32 __user *utime, u32 __user *uaddr2,
587 asmlinkage long sys_get_robust_list(int pid,
588 struct robust_list_head __user * __user *head_ptr,
589 size_t __user *len_ptr);
590 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
593 /* kernel/hrtimer.c */
594 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
595 struct __kernel_timespec __user *rmtp);
596 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
597 struct old_timespec32 __user *rmtp);
599 /* kernel/itimer.c */
600 asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value);
601 asmlinkage long sys_setitimer(int which,
602 struct __kernel_old_itimerval __user *value,
603 struct __kernel_old_itimerval __user *ovalue);
606 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
607 struct kexec_segment __user *segments,
608 unsigned long flags);
610 /* kernel/module.c */
611 asmlinkage long sys_init_module(void __user *umod, unsigned long len,
612 const char __user *uargs);
613 asmlinkage long sys_delete_module(const char __user *name_user,
616 /* kernel/posix-timers.c */
617 asmlinkage long sys_timer_create(clockid_t which_clock,
618 struct sigevent __user *timer_event_spec,
619 timer_t __user * created_timer_id);
620 asmlinkage long sys_timer_gettime(timer_t timer_id,
621 struct __kernel_itimerspec __user *setting);
622 asmlinkage long sys_timer_getoverrun(timer_t timer_id);
623 asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
624 const struct __kernel_itimerspec __user *new_setting,
625 struct __kernel_itimerspec __user *old_setting);
626 asmlinkage long sys_timer_delete(timer_t timer_id);
627 asmlinkage long sys_clock_settime(clockid_t which_clock,
628 const struct __kernel_timespec __user *tp);
629 asmlinkage long sys_clock_gettime(clockid_t which_clock,
630 struct __kernel_timespec __user *tp);
631 asmlinkage long sys_clock_getres(clockid_t which_clock,
632 struct __kernel_timespec __user *tp);
633 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
634 const struct __kernel_timespec __user *rqtp,
635 struct __kernel_timespec __user *rmtp);
636 asmlinkage long sys_timer_gettime32(timer_t timer_id,
637 struct old_itimerspec32 __user *setting);
638 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
639 struct old_itimerspec32 __user *new,
640 struct old_itimerspec32 __user *old);
641 asmlinkage long sys_clock_settime32(clockid_t which_clock,
642 struct old_timespec32 __user *tp);
643 asmlinkage long sys_clock_gettime32(clockid_t which_clock,
644 struct old_timespec32 __user *tp);
645 asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
646 struct old_timespec32 __user *tp);
647 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
648 struct old_timespec32 __user *rqtp,
649 struct old_timespec32 __user *rmtp);
651 /* kernel/printk.c */
652 asmlinkage long sys_syslog(int type, char __user *buf, int len);
654 /* kernel/ptrace.c */
655 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
657 /* kernel/sched/core.c */
659 asmlinkage long sys_sched_setparam(pid_t pid,
660 struct sched_param __user *param);
661 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
662 struct sched_param __user *param);
663 asmlinkage long sys_sched_getscheduler(pid_t pid);
664 asmlinkage long sys_sched_getparam(pid_t pid,
665 struct sched_param __user *param);
666 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
667 unsigned long __user *user_mask_ptr);
668 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
669 unsigned long __user *user_mask_ptr);
670 asmlinkage long sys_sched_yield(void);
671 asmlinkage long sys_sched_get_priority_max(int policy);
672 asmlinkage long sys_sched_get_priority_min(int policy);
673 asmlinkage long sys_sched_rr_get_interval(pid_t pid,
674 struct __kernel_timespec __user *interval);
675 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
676 struct old_timespec32 __user *interval);
678 /* kernel/signal.c */
679 asmlinkage long sys_restart_syscall(void);
680 asmlinkage long sys_kill(pid_t pid, int sig);
681 asmlinkage long sys_tkill(pid_t pid, int sig);
682 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
683 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
684 struct sigaltstack __user *uoss);
685 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
686 #ifndef CONFIG_ODD_RT_SIGACTION
687 asmlinkage long sys_rt_sigaction(int,
688 const struct sigaction __user *,
689 struct sigaction __user *,
692 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
693 sigset_t __user *oset, size_t sigsetsize);
694 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
695 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
696 siginfo_t __user *uinfo,
697 const struct __kernel_timespec __user *uts,
699 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
700 siginfo_t __user *uinfo,
701 const struct old_timespec32 __user *uts,
703 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
706 asmlinkage long sys_setpriority(int which, int who, int niceval);
707 asmlinkage long sys_getpriority(int which, int who);
708 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
710 asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
711 asmlinkage long sys_setgid(gid_t gid);
712 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
713 asmlinkage long sys_setuid(uid_t uid);
714 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
715 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
716 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
717 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
718 asmlinkage long sys_setfsuid(uid_t uid);
719 asmlinkage long sys_setfsgid(gid_t gid);
720 asmlinkage long sys_times(struct tms __user *tbuf);
721 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
722 asmlinkage long sys_getpgid(pid_t pid);
723 asmlinkage long sys_getsid(pid_t pid);
724 asmlinkage long sys_setsid(void);
725 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
726 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
727 asmlinkage long sys_newuname(struct new_utsname __user *name);
728 asmlinkage long sys_sethostname(char __user *name, int len);
729 asmlinkage long sys_setdomainname(char __user *name, int len);
730 asmlinkage long sys_getrlimit(unsigned int resource,
731 struct rlimit __user *rlim);
732 asmlinkage long sys_setrlimit(unsigned int resource,
733 struct rlimit __user *rlim);
734 asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
735 asmlinkage long sys_umask(int mask);
736 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
737 unsigned long arg4, unsigned long arg5);
738 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
741 asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv,
742 struct timezone __user *tz);
743 asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv,
744 struct timezone __user *tz);
745 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
746 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
749 asmlinkage long sys_getpid(void);
750 asmlinkage long sys_getppid(void);
751 asmlinkage long sys_getuid(void);
752 asmlinkage long sys_geteuid(void);
753 asmlinkage long sys_getgid(void);
754 asmlinkage long sys_getegid(void);
755 asmlinkage long sys_gettid(void);
756 asmlinkage long sys_sysinfo(struct sysinfo __user *info);
759 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
760 asmlinkage long sys_mq_unlink(const char __user *name);
761 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);
762 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);
763 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
764 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
765 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
766 char __user *u_msg_ptr,
767 unsigned int msg_len, unsigned int __user *u_msg_prio,
768 const struct old_timespec32 __user *u_abs_timeout);
769 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
770 const char __user *u_msg_ptr,
771 unsigned int msg_len, unsigned int msg_prio,
772 const struct old_timespec32 __user *u_abs_timeout);
775 asmlinkage long sys_msgget(key_t key, int msgflg);
776 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
777 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
778 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
779 size_t msgsz, long msgtyp, int msgflg);
780 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
781 size_t msgsz, int msgflg);
784 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
785 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
786 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
787 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
789 const struct __kernel_timespec __user *timeout);
790 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
792 const struct old_timespec32 __user *timeout);
793 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
797 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
798 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
799 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
800 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
801 asmlinkage long sys_shmdt(char __user *shmaddr);
804 asmlinkage long sys_socket(int, int, int);
805 asmlinkage long sys_socketpair(int, int, int, int __user *);
806 asmlinkage long sys_bind(int, struct sockaddr __user *, int);
807 asmlinkage long sys_listen(int, int);
808 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
809 asmlinkage long sys_connect(int, struct sockaddr __user *, int);
810 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
811 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
812 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
813 struct sockaddr __user *, int);
814 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
815 struct sockaddr __user *, int __user *);
816 asmlinkage long sys_setsockopt(int fd, int level, int optname,
817 char __user *optval, int optlen);
818 asmlinkage long sys_getsockopt(int fd, int level, int optname,
819 char __user *optval, int __user *optlen);
820 asmlinkage long sys_shutdown(int, int);
821 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
822 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
825 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
827 /* mm/nommu.c, also with MMU */
828 asmlinkage long sys_brk(unsigned long brk);
829 asmlinkage long sys_munmap(unsigned long addr, size_t len);
830 asmlinkage long sys_mremap(unsigned long addr,
831 unsigned long old_len, unsigned long new_len,
832 unsigned long flags, unsigned long new_addr);
834 /* security/keys/keyctl.c */
835 asmlinkage long sys_add_key(const char __user *_type,
836 const char __user *_description,
837 const void __user *_payload,
839 key_serial_t destringid);
840 asmlinkage long sys_request_key(const char __user *_type,
841 const char __user *_description,
842 const char __user *_callout_info,
843 key_serial_t destringid);
844 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
845 unsigned long arg4, unsigned long arg5);
847 /* arch/example/kernel/sys_example.c */
848 #ifdef CONFIG_CLONE_BACKWARDS
849 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
852 #ifdef CONFIG_CLONE_BACKWARDS3
853 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
854 int __user *, unsigned long);
856 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
857 int __user *, unsigned long);
861 asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size);
863 asmlinkage long sys_execve(const char __user *filename,
864 const char __user *const __user *argv,
865 const char __user *const __user *envp);
868 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
870 /* mm/, CONFIG_MMU only */
871 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
872 asmlinkage long sys_swapoff(const char __user *specialfile);
873 asmlinkage long sys_mprotect(unsigned long start, size_t len,
875 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
876 asmlinkage long sys_mlock(unsigned long start, size_t len);
877 asmlinkage long sys_munlock(unsigned long start, size_t len);
878 asmlinkage long sys_mlockall(int flags);
879 asmlinkage long sys_munlockall(void);
880 asmlinkage long sys_mincore(unsigned long start, size_t len,
881 unsigned char __user * vec);
882 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
883 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
884 unsigned long prot, unsigned long pgoff,
885 unsigned long flags);
886 asmlinkage long sys_mbind(unsigned long start, unsigned long len,
888 const unsigned long __user *nmask,
889 unsigned long maxnode,
891 asmlinkage long sys_get_mempolicy(int __user *policy,
892 unsigned long __user *nmask,
893 unsigned long maxnode,
894 unsigned long addr, unsigned long flags);
895 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
896 unsigned long maxnode);
897 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
898 const unsigned long __user *from,
899 const unsigned long __user *to);
900 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
901 const void __user * __user *pages,
902 const int __user *nodes,
906 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
907 siginfo_t __user *uinfo);
908 asmlinkage long sys_perf_event_open(
909 struct perf_event_attr __user *attr_uptr,
910 pid_t pid, int cpu, int group_fd, unsigned long flags);
911 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
912 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
913 unsigned int vlen, unsigned flags,
914 struct __kernel_timespec __user *timeout);
915 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
916 unsigned int vlen, unsigned flags,
917 struct old_timespec32 __user *timeout);
919 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
920 int options, struct rusage __user *ru);
921 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
922 const struct rlimit64 __user *new_rlim,
923 struct rlimit64 __user *old_rlim);
924 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
925 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
927 const char __user *pathname);
928 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
929 struct file_handle __user *handle,
930 int __user *mnt_id, int flag);
931 asmlinkage long sys_open_by_handle_at(int mountdirfd,
932 struct file_handle __user *handle,
934 asmlinkage long sys_clock_adjtime(clockid_t which_clock,
935 struct __kernel_timex __user *tx);
936 asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
937 struct old_timex32 __user *tx);
938 asmlinkage long sys_syncfs(int fd);
939 asmlinkage long sys_setns(int fd, int nstype);
940 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
941 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
942 unsigned int vlen, unsigned flags);
943 asmlinkage long sys_process_vm_readv(pid_t pid,
944 const struct iovec __user *lvec,
945 unsigned long liovcnt,
946 const struct iovec __user *rvec,
947 unsigned long riovcnt,
948 unsigned long flags);
949 asmlinkage long sys_process_vm_writev(pid_t pid,
950 const struct iovec __user *lvec,
951 unsigned long liovcnt,
952 const struct iovec __user *rvec,
953 unsigned long riovcnt,
954 unsigned long flags);
955 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
956 unsigned long idx1, unsigned long idx2);
957 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
958 asmlinkage long sys_sched_setattr(pid_t pid,
959 struct sched_attr __user *attr,
961 asmlinkage long sys_sched_getattr(pid_t pid,
962 struct sched_attr __user *attr,
965 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
966 int newdfd, const char __user *newname,
968 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
970 asmlinkage long sys_getrandom(char __user *buf, size_t count,
972 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
973 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
974 asmlinkage long sys_execveat(int dfd, const char __user *filename,
975 const char __user *const __user *argv,
976 const char __user *const __user *envp, int flags);
977 asmlinkage long sys_userfaultfd(int flags);
978 asmlinkage long sys_membarrier(int cmd, int flags);
979 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
980 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
981 int fd_out, loff_t __user *off_out,
982 size_t len, unsigned int flags);
983 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
984 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
986 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
987 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
989 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
990 unsigned long prot, int pkey);
991 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
992 asmlinkage long sys_pkey_free(int pkey);
993 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
994 unsigned mask, struct statx __user *buffer);
995 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
996 int flags, uint32_t sig);
997 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
998 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
999 int to_dfd, const char __user *to_path,
1000 unsigned int ms_flags);
1001 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
1002 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
1003 const void __user *value, int aux);
1004 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
1005 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
1006 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
1007 siginfo_t __user *info,
1008 unsigned int flags);
1009 asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
1012 * Architecture-specific system calls
1015 /* arch/x86/kernel/ioport.c */
1016 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
1018 /* pciconfig: alpha, arm, arm64, ia64, sparc */
1019 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
1020 unsigned long off, unsigned long len,
1022 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
1023 unsigned long off, unsigned long len,
1025 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
1028 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
1029 __u32 __user *ustatus);
1030 asmlinkage long sys_spu_create(const char __user *name,
1031 unsigned int flags, umode_t mode, int fd);
1035 * Deprecated system calls which are still defined in
1036 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
1039 /* __ARCH_WANT_SYSCALL_NO_AT */
1040 asmlinkage long sys_open(const char __user *filename,
1041 int flags, umode_t mode);
1042 asmlinkage long sys_link(const char __user *oldname,
1043 const char __user *newname);
1044 asmlinkage long sys_unlink(const char __user *pathname);
1045 asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
1047 asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
1048 asmlinkage long sys_chown(const char __user *filename,
1049 uid_t user, gid_t group);
1050 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
1051 asmlinkage long sys_rmdir(const char __user *pathname);
1052 asmlinkage long sys_lchown(const char __user *filename,
1053 uid_t user, gid_t group);
1054 asmlinkage long sys_access(const char __user *filename, int mode);
1055 asmlinkage long sys_rename(const char __user *oldname,
1056 const char __user *newname);
1057 asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1058 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1059 asmlinkage long sys_stat64(const char __user *filename,
1060 struct stat64 __user *statbuf);
1061 asmlinkage long sys_lstat64(const char __user *filename,
1062 struct stat64 __user *statbuf);
1065 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
1066 asmlinkage long sys_pipe(int __user *fildes);
1067 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1068 asmlinkage long sys_epoll_create(int size);
1069 asmlinkage long sys_inotify_init(void);
1070 asmlinkage long sys_eventfd(unsigned int count);
1071 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1073 /* __ARCH_WANT_SYSCALL_OFF_T */
1074 asmlinkage long sys_sendfile(int out_fd, int in_fd,
1075 off_t __user *offset, size_t count);
1076 asmlinkage long sys_newstat(const char __user *filename,
1077 struct stat __user *statbuf);
1078 asmlinkage long sys_newlstat(const char __user *filename,
1079 struct stat __user *statbuf);
1080 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1082 /* __ARCH_WANT_SYSCALL_DEPRECATED */
1083 asmlinkage long sys_alarm(unsigned int seconds);
1084 asmlinkage long sys_getpgrp(void);
1085 asmlinkage long sys_pause(void);
1086 asmlinkage long sys_time(__kernel_old_time_t __user *tloc);
1087 asmlinkage long sys_time32(old_time32_t __user *tloc);
1088 #ifdef __ARCH_WANT_SYS_UTIME
1089 asmlinkage long sys_utime(char __user *filename,
1090 struct utimbuf __user *times);
1091 asmlinkage long sys_utimes(char __user *filename,
1092 struct __kernel_old_timeval __user *utimes);
1093 asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1094 struct __kernel_old_timeval __user *utimes);
1096 asmlinkage long sys_futimesat_time32(unsigned int dfd,
1097 const char __user *filename,
1098 struct old_timeval32 __user *t);
1099 asmlinkage long sys_utime32(const char __user *filename,
1100 struct old_utimbuf32 __user *t);
1101 asmlinkage long sys_utimes_time32(const char __user *filename,
1102 struct old_timeval32 __user *t);
1103 asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1104 asmlinkage long sys_getdents(unsigned int fd,
1105 struct linux_dirent __user *dirent,
1106 unsigned int count);
1107 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1108 fd_set __user *exp, struct __kernel_old_timeval __user *tvp);
1109 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1111 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1112 int maxevents, int timeout);
1113 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1114 asmlinkage long sys_vfork(void);
1115 asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1116 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1117 asmlinkage long sys_bdflush(int func, long data);
1118 asmlinkage long sys_oldumount(char __user *name);
1119 asmlinkage long sys_uselib(const char __user *library);
1120 asmlinkage long sys_sysctl(struct __sysctl_args __user *args);
1121 asmlinkage long sys_sysfs(int option,
1122 unsigned long arg1, unsigned long arg2);
1123 asmlinkage long sys_fork(void);
1125 /* obsolete: kernel/time/time.c */
1126 asmlinkage long sys_stime(__kernel_old_time_t __user *tptr);
1127 asmlinkage long sys_stime32(old_time32_t __user *tptr);
1129 /* obsolete: kernel/signal.c */
1130 asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1131 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1132 old_sigset_t __user *oset);
1133 #ifdef CONFIG_OLD_SIGSUSPEND
1134 asmlinkage long sys_sigsuspend(old_sigset_t mask);
1137 #ifdef CONFIG_OLD_SIGSUSPEND3
1138 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1141 #ifdef CONFIG_OLD_SIGACTION
1142 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1143 struct old_sigaction __user *);
1145 asmlinkage long sys_sgetmask(void);
1146 asmlinkage long sys_ssetmask(int newmask);
1147 asmlinkage long sys_signal(int sig, __sighandler_t handler);
1149 /* obsolete: kernel/sched/core.c */
1150 asmlinkage long sys_nice(int increment);
1152 /* obsolete: kernel/kexec_file.c */
1153 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1154 unsigned long cmdline_len,
1155 const char __user *cmdline_ptr,
1156 unsigned long flags);
1158 /* obsolete: kernel/exit.c */
1159 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1161 /* obsolete: kernel/uid16.c */
1162 #ifdef CONFIG_HAVE_UID16
1163 asmlinkage long sys_chown16(const char __user *filename,
1164 old_uid_t user, old_gid_t group);
1165 asmlinkage long sys_lchown16(const char __user *filename,
1166 old_uid_t user, old_gid_t group);
1167 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1168 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1169 asmlinkage long sys_setgid16(old_gid_t gid);
1170 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1171 asmlinkage long sys_setuid16(old_uid_t uid);
1172 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1173 asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1174 old_uid_t __user *euid, old_uid_t __user *suid);
1175 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1176 asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1177 old_gid_t __user *egid, old_gid_t __user *sgid);
1178 asmlinkage long sys_setfsuid16(old_uid_t uid);
1179 asmlinkage long sys_setfsgid16(old_gid_t gid);
1180 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1181 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1182 asmlinkage long sys_getuid16(void);
1183 asmlinkage long sys_geteuid16(void);
1184 asmlinkage long sys_getgid16(void);
1185 asmlinkage long sys_getegid16(void);
1188 /* obsolete: net/socket.c */
1189 asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1191 /* obsolete: fs/stat.c */
1192 asmlinkage long sys_stat(const char __user *filename,
1193 struct __old_kernel_stat __user *statbuf);
1194 asmlinkage long sys_lstat(const char __user *filename,
1195 struct __old_kernel_stat __user *statbuf);
1196 asmlinkage long sys_fstat(unsigned int fd,
1197 struct __old_kernel_stat __user *statbuf);
1198 asmlinkage long sys_readlink(const char __user *path,
1199 char __user *buf, int bufsiz);
1201 /* obsolete: fs/select.c */
1202 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1204 /* obsolete: fs/readdir.c */
1205 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1207 /* obsolete: kernel/sys.c */
1208 asmlinkage long sys_gethostname(char __user *name, int len);
1209 asmlinkage long sys_uname(struct old_utsname __user *);
1210 asmlinkage long sys_olduname(struct oldold_utsname __user *);
1211 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1212 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1216 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1217 unsigned long third, void __user *ptr, long fifth);
1220 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1221 unsigned long prot, unsigned long flags,
1222 unsigned long fd, unsigned long pgoff);
1223 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1227 * Not a real system call, but a placeholder for syscalls which are
1228 * not implemented -- see kernel/sys_ni.c
1230 asmlinkage long sys_ni_syscall(void);
1232 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1236 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1237 * Instead, use one of the functions which work equivalently, such as
1238 * the ksys_xyzyyz() functions prototyped below.
1240 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1241 int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1242 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1243 void ksys_sync(void);
1244 int ksys_unshare(unsigned long unshare_flags);
1245 int ksys_setsid(void);
1246 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1247 unsigned int flags);
1248 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1250 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1251 size_t count, loff_t pos);
1252 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1253 #ifdef CONFIG_ADVISE_SYSCALLS
1254 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1256 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1262 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1263 unsigned long prot, unsigned long flags,
1264 unsigned long fd, unsigned long pgoff);
1265 ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1266 int ksys_ipc(unsigned int call, int first, unsigned long second,
1267 unsigned long third, void __user * ptr, long fifth);
1268 int compat_ksys_ipc(u32 call, int first, int second,
1269 u32 third, u32 ptr, u32 fifth);
1272 * The following kernel syscall equivalents are just wrappers to fs-internal
1273 * functions. Therefore, provide stubs to be inlined at the callsites.
1275 extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1276 gid_t group, int flag);
1278 static inline long ksys_chown(const char __user *filename, uid_t user,
1281 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1284 static inline long ksys_lchown(const char __user *filename, uid_t user,
1287 return do_fchownat(AT_FDCWD, filename, user, group,
1288 AT_SYMLINK_NOFOLLOW);
1291 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1293 static inline long ksys_ftruncate(unsigned int fd, loff_t length)
1295 return do_sys_ftruncate(fd, length, 1);
1298 extern int __close_fd(struct files_struct *files, unsigned int fd);
1301 * In contrast to sys_close(), this stub does not check whether the syscall
1302 * should or should not be restarted, but returns the raw error codes from
1305 static inline int ksys_close(unsigned int fd)
1307 return __close_fd(current->files, fd);
1310 extern long do_sys_truncate(const char __user *pathname, loff_t length);
1312 static inline long ksys_truncate(const char __user *pathname, loff_t length)
1314 return do_sys_truncate(pathname, length);
1317 static inline unsigned int ksys_personality(unsigned int personality)
1319 unsigned int old = current->personality;
1321 if (personality != 0xffffffff)
1322 set_personality(personality);
1327 /* for __ARCH_WANT_SYS_IPC */
1328 long ksys_semtimedop(int semid, struct sembuf __user *tsops,
1330 const struct __kernel_timespec __user *timeout);
1331 long ksys_semget(key_t key, int nsems, int semflg);
1332 long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
1333 long ksys_msgget(key_t key, int msgflg);
1334 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
1335 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1336 long msgtyp, int msgflg);
1337 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1339 long ksys_shmget(key_t key, size_t size, int shmflg);
1340 long ksys_shmdt(char __user *shmaddr);
1341 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
1342 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
1344 const struct old_timespec32 __user *timeout);
1346 int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
1347 int __user *optlen);
1348 int __sys_setsockopt(int fd, int level, int optname, char __user *optval,