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;
52 struct __kernel_old_timeval;
53 struct __kernel_timex;
60 struct robust_list_head;
62 struct old_linux_dirent;
63 struct perf_event_attr;
68 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 __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 __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 __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(uaccess_kernel(),
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 void __user *argp, size_t argsz);
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,
365 asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events,
367 const struct __kernel_timespec __user *timeout,
368 const sigset_t __user *sigmask,
372 asmlinkage long sys_dup(unsigned int fildes);
373 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
374 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
375 #if BITS_PER_LONG == 32
376 asmlinkage long sys_fcntl64(unsigned int fd,
377 unsigned int cmd, unsigned long arg);
380 /* fs/inotify_user.c */
381 asmlinkage long sys_inotify_init1(int flags);
382 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
384 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
387 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
391 asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
392 asmlinkage long sys_ioprio_get(int which, int who);
395 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
398 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
400 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
401 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
402 asmlinkage long sys_symlinkat(const char __user * oldname,
403 int newdfd, const char __user * newname);
404 asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
405 int newdfd, const char __user *newname, int flags);
406 asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
407 int newdfd, const char __user * newname);
410 asmlinkage long sys_umount(char __user *name, int flags);
411 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
412 char __user *type, unsigned long flags,
414 asmlinkage long sys_pivot_root(const char __user *new_root,
415 const char __user *put_old);
420 asmlinkage long sys_statfs(const char __user * path,
421 struct statfs __user *buf);
422 asmlinkage long sys_statfs64(const char __user *path, size_t sz,
423 struct statfs64 __user *buf);
424 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
425 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
426 struct statfs64 __user *buf);
427 asmlinkage long sys_truncate(const char __user *path, long length);
428 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
429 #if BITS_PER_LONG == 32
430 asmlinkage long sys_truncate64(const char __user *path, loff_t length);
431 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
433 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
434 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
435 asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode,
437 asmlinkage long sys_chdir(const char __user *filename);
438 asmlinkage long sys_fchdir(unsigned int fd);
439 asmlinkage long sys_chroot(const char __user *filename);
440 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
441 asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
443 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
444 gid_t group, int flag);
445 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
446 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
448 asmlinkage long sys_openat2(int dfd, const char __user *filename,
449 struct open_how *how, size_t size);
450 asmlinkage long sys_close(unsigned int fd);
451 asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd,
453 asmlinkage long sys_vhangup(void);
456 asmlinkage long sys_pipe2(int __user *fildes, int flags);
459 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
460 qid_t id, void __user *addr);
463 asmlinkage long sys_getdents64(unsigned int fd,
464 struct linux_dirent64 __user *dirent,
467 /* fs/read_write.c */
468 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
469 unsigned long offset_low, loff_t __user *result,
470 unsigned int whence);
471 asmlinkage long sys_lseek(unsigned int fd, off_t offset,
472 unsigned int whence);
473 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
474 asmlinkage long sys_write(unsigned int fd, const char __user *buf,
476 asmlinkage long sys_readv(unsigned long fd,
477 const struct iovec __user *vec,
479 asmlinkage long sys_writev(unsigned long fd,
480 const struct iovec __user *vec,
482 asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
483 size_t count, loff_t pos);
484 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
485 size_t count, loff_t pos);
486 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
487 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
488 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
489 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
492 asmlinkage long sys_sendfile64(int out_fd, int in_fd,
493 loff_t __user *offset, size_t count);
496 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
497 fd_set __user *, struct __kernel_timespec __user *,
499 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
500 fd_set __user *, struct old_timespec32 __user *,
502 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
503 struct __kernel_timespec __user *, const sigset_t __user *,
505 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
506 struct old_timespec32 __user *, const sigset_t __user *,
510 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
513 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
514 unsigned long nr_segs, unsigned int flags);
515 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
516 int fd_out, loff_t __user *off_out,
517 size_t len, unsigned int flags);
518 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
521 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
523 asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
524 struct stat __user *statbuf, int flag);
525 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
526 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
527 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
528 asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
529 struct stat64 __user *statbuf, int flag);
533 asmlinkage long sys_sync(void);
534 asmlinkage long sys_fsync(unsigned int fd);
535 asmlinkage long sys_fdatasync(unsigned int fd);
536 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
537 loff_t offset, loff_t nbytes);
538 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
542 asmlinkage long sys_timerfd_create(int clockid, int flags);
543 asmlinkage long sys_timerfd_settime(int ufd, int flags,
544 const struct __kernel_itimerspec __user *utmr,
545 struct __kernel_itimerspec __user *otmr);
546 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
547 asmlinkage long sys_timerfd_gettime32(int ufd,
548 struct old_itimerspec32 __user *otmr);
549 asmlinkage long sys_timerfd_settime32(int ufd, int flags,
550 const struct old_itimerspec32 __user *utmr,
551 struct old_itimerspec32 __user *otmr);
554 asmlinkage long sys_utimensat(int dfd, const char __user *filename,
555 struct __kernel_timespec __user *utimes,
557 asmlinkage long sys_utimensat_time32(unsigned int dfd,
558 const char __user *filename,
559 struct old_timespec32 __user *t, int flags);
562 asmlinkage long sys_acct(const char __user *name);
564 /* kernel/capability.c */
565 asmlinkage long sys_capget(cap_user_header_t header,
566 cap_user_data_t dataptr);
567 asmlinkage long sys_capset(cap_user_header_t header,
568 const cap_user_data_t data);
570 /* kernel/exec_domain.c */
571 asmlinkage long sys_personality(unsigned int personality);
574 asmlinkage long sys_exit(int error_code);
575 asmlinkage long sys_exit_group(int error_code);
576 asmlinkage long sys_waitid(int which, pid_t pid,
577 struct siginfo __user *infop,
578 int options, struct rusage __user *ru);
581 asmlinkage long sys_set_tid_address(int __user *tidptr);
582 asmlinkage long sys_unshare(unsigned long unshare_flags);
585 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
586 struct __kernel_timespec __user *utime, u32 __user *uaddr2,
588 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
589 struct old_timespec32 __user *utime, u32 __user *uaddr2,
591 asmlinkage long sys_get_robust_list(int pid,
592 struct robust_list_head __user * __user *head_ptr,
593 size_t __user *len_ptr);
594 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
597 /* kernel/hrtimer.c */
598 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
599 struct __kernel_timespec __user *rmtp);
600 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
601 struct old_timespec32 __user *rmtp);
603 /* kernel/itimer.c */
604 asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value);
605 asmlinkage long sys_setitimer(int which,
606 struct __kernel_old_itimerval __user *value,
607 struct __kernel_old_itimerval __user *ovalue);
610 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
611 struct kexec_segment __user *segments,
612 unsigned long flags);
614 /* kernel/module.c */
615 asmlinkage long sys_init_module(void __user *umod, unsigned long len,
616 const char __user *uargs);
617 asmlinkage long sys_delete_module(const char __user *name_user,
620 /* kernel/posix-timers.c */
621 asmlinkage long sys_timer_create(clockid_t which_clock,
622 struct sigevent __user *timer_event_spec,
623 timer_t __user * created_timer_id);
624 asmlinkage long sys_timer_gettime(timer_t timer_id,
625 struct __kernel_itimerspec __user *setting);
626 asmlinkage long sys_timer_getoverrun(timer_t timer_id);
627 asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
628 const struct __kernel_itimerspec __user *new_setting,
629 struct __kernel_itimerspec __user *old_setting);
630 asmlinkage long sys_timer_delete(timer_t timer_id);
631 asmlinkage long sys_clock_settime(clockid_t which_clock,
632 const struct __kernel_timespec __user *tp);
633 asmlinkage long sys_clock_gettime(clockid_t which_clock,
634 struct __kernel_timespec __user *tp);
635 asmlinkage long sys_clock_getres(clockid_t which_clock,
636 struct __kernel_timespec __user *tp);
637 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
638 const struct __kernel_timespec __user *rqtp,
639 struct __kernel_timespec __user *rmtp);
640 asmlinkage long sys_timer_gettime32(timer_t timer_id,
641 struct old_itimerspec32 __user *setting);
642 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
643 struct old_itimerspec32 __user *new,
644 struct old_itimerspec32 __user *old);
645 asmlinkage long sys_clock_settime32(clockid_t which_clock,
646 struct old_timespec32 __user *tp);
647 asmlinkage long sys_clock_gettime32(clockid_t which_clock,
648 struct old_timespec32 __user *tp);
649 asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
650 struct old_timespec32 __user *tp);
651 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
652 struct old_timespec32 __user *rqtp,
653 struct old_timespec32 __user *rmtp);
655 /* kernel/printk.c */
656 asmlinkage long sys_syslog(int type, char __user *buf, int len);
658 /* kernel/ptrace.c */
659 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
661 /* kernel/sched/core.c */
663 asmlinkage long sys_sched_setparam(pid_t pid,
664 struct sched_param __user *param);
665 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
666 struct sched_param __user *param);
667 asmlinkage long sys_sched_getscheduler(pid_t pid);
668 asmlinkage long sys_sched_getparam(pid_t pid,
669 struct sched_param __user *param);
670 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
671 unsigned long __user *user_mask_ptr);
672 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
673 unsigned long __user *user_mask_ptr);
674 asmlinkage long sys_sched_yield(void);
675 asmlinkage long sys_sched_get_priority_max(int policy);
676 asmlinkage long sys_sched_get_priority_min(int policy);
677 asmlinkage long sys_sched_rr_get_interval(pid_t pid,
678 struct __kernel_timespec __user *interval);
679 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
680 struct old_timespec32 __user *interval);
682 /* kernel/signal.c */
683 asmlinkage long sys_restart_syscall(void);
684 asmlinkage long sys_kill(pid_t pid, int sig);
685 asmlinkage long sys_tkill(pid_t pid, int sig);
686 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
687 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
688 struct sigaltstack __user *uoss);
689 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
690 #ifndef CONFIG_ODD_RT_SIGACTION
691 asmlinkage long sys_rt_sigaction(int,
692 const struct sigaction __user *,
693 struct sigaction __user *,
696 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
697 sigset_t __user *oset, size_t sigsetsize);
698 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
699 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
700 siginfo_t __user *uinfo,
701 const struct __kernel_timespec __user *uts,
703 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
704 siginfo_t __user *uinfo,
705 const struct old_timespec32 __user *uts,
707 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
710 asmlinkage long sys_setpriority(int which, int who, int niceval);
711 asmlinkage long sys_getpriority(int which, int who);
712 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
714 asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
715 asmlinkage long sys_setgid(gid_t gid);
716 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
717 asmlinkage long sys_setuid(uid_t uid);
718 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
719 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
720 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
721 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
722 asmlinkage long sys_setfsuid(uid_t uid);
723 asmlinkage long sys_setfsgid(gid_t gid);
724 asmlinkage long sys_times(struct tms __user *tbuf);
725 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
726 asmlinkage long sys_getpgid(pid_t pid);
727 asmlinkage long sys_getsid(pid_t pid);
728 asmlinkage long sys_setsid(void);
729 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
730 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
731 asmlinkage long sys_newuname(struct new_utsname __user *name);
732 asmlinkage long sys_sethostname(char __user *name, int len);
733 asmlinkage long sys_setdomainname(char __user *name, int len);
734 asmlinkage long sys_getrlimit(unsigned int resource,
735 struct rlimit __user *rlim);
736 asmlinkage long sys_setrlimit(unsigned int resource,
737 struct rlimit __user *rlim);
738 asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
739 asmlinkage long sys_umask(int mask);
740 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
741 unsigned long arg4, unsigned long arg5);
742 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
745 asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv,
746 struct timezone __user *tz);
747 asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv,
748 struct timezone __user *tz);
749 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
750 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
753 asmlinkage long sys_getpid(void);
754 asmlinkage long sys_getppid(void);
755 asmlinkage long sys_getuid(void);
756 asmlinkage long sys_geteuid(void);
757 asmlinkage long sys_getgid(void);
758 asmlinkage long sys_getegid(void);
759 asmlinkage long sys_gettid(void);
760 asmlinkage long sys_sysinfo(struct sysinfo __user *info);
763 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
764 asmlinkage long sys_mq_unlink(const char __user *name);
765 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);
766 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);
767 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
768 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
769 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
770 char __user *u_msg_ptr,
771 unsigned int msg_len, unsigned int __user *u_msg_prio,
772 const struct old_timespec32 __user *u_abs_timeout);
773 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
774 const char __user *u_msg_ptr,
775 unsigned int msg_len, unsigned int msg_prio,
776 const struct old_timespec32 __user *u_abs_timeout);
779 asmlinkage long sys_msgget(key_t key, int msgflg);
780 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
781 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
782 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
783 size_t msgsz, long msgtyp, int msgflg);
784 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
785 size_t msgsz, int msgflg);
788 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
789 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
790 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
791 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
793 const struct __kernel_timespec __user *timeout);
794 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
796 const struct old_timespec32 __user *timeout);
797 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
801 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
802 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
803 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
804 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
805 asmlinkage long sys_shmdt(char __user *shmaddr);
808 asmlinkage long sys_socket(int, int, int);
809 asmlinkage long sys_socketpair(int, int, int, int __user *);
810 asmlinkage long sys_bind(int, struct sockaddr __user *, int);
811 asmlinkage long sys_listen(int, int);
812 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
813 asmlinkage long sys_connect(int, struct sockaddr __user *, int);
814 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
815 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
816 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
817 struct sockaddr __user *, int);
818 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
819 struct sockaddr __user *, int __user *);
820 asmlinkage long sys_setsockopt(int fd, int level, int optname,
821 char __user *optval, int optlen);
822 asmlinkage long sys_getsockopt(int fd, int level, int optname,
823 char __user *optval, int __user *optlen);
824 asmlinkage long sys_shutdown(int, int);
825 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
826 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
829 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
831 /* mm/nommu.c, also with MMU */
832 asmlinkage long sys_brk(unsigned long brk);
833 asmlinkage long sys_munmap(unsigned long addr, size_t len);
834 asmlinkage long sys_mremap(unsigned long addr,
835 unsigned long old_len, unsigned long new_len,
836 unsigned long flags, unsigned long new_addr);
838 /* security/keys/keyctl.c */
839 asmlinkage long sys_add_key(const char __user *_type,
840 const char __user *_description,
841 const void __user *_payload,
843 key_serial_t destringid);
844 asmlinkage long sys_request_key(const char __user *_type,
845 const char __user *_description,
846 const char __user *_callout_info,
847 key_serial_t destringid);
848 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
849 unsigned long arg4, unsigned long arg5);
851 /* arch/example/kernel/sys_example.c */
852 #ifdef CONFIG_CLONE_BACKWARDS
853 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
856 #ifdef CONFIG_CLONE_BACKWARDS3
857 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
858 int __user *, unsigned long);
860 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
861 int __user *, unsigned long);
865 asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size);
867 asmlinkage long sys_execve(const char __user *filename,
868 const char __user *const __user *argv,
869 const char __user *const __user *envp);
872 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
874 /* mm/, CONFIG_MMU only */
875 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
876 asmlinkage long sys_swapoff(const char __user *specialfile);
877 asmlinkage long sys_mprotect(unsigned long start, size_t len,
879 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
880 asmlinkage long sys_mlock(unsigned long start, size_t len);
881 asmlinkage long sys_munlock(unsigned long start, size_t len);
882 asmlinkage long sys_mlockall(int flags);
883 asmlinkage long sys_munlockall(void);
884 asmlinkage long sys_mincore(unsigned long start, size_t len,
885 unsigned char __user * vec);
886 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
887 asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
888 size_t vlen, int behavior, unsigned int flags);
889 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
890 unsigned long prot, unsigned long pgoff,
891 unsigned long flags);
892 asmlinkage long sys_mbind(unsigned long start, unsigned long len,
894 const unsigned long __user *nmask,
895 unsigned long maxnode,
897 asmlinkage long sys_get_mempolicy(int __user *policy,
898 unsigned long __user *nmask,
899 unsigned long maxnode,
900 unsigned long addr, unsigned long flags);
901 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
902 unsigned long maxnode);
903 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
904 const unsigned long __user *from,
905 const unsigned long __user *to);
906 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
907 const void __user * __user *pages,
908 const int __user *nodes,
912 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
913 siginfo_t __user *uinfo);
914 asmlinkage long sys_perf_event_open(
915 struct perf_event_attr __user *attr_uptr,
916 pid_t pid, int cpu, int group_fd, unsigned long flags);
917 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
918 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
919 unsigned int vlen, unsigned flags,
920 struct __kernel_timespec __user *timeout);
921 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
922 unsigned int vlen, unsigned flags,
923 struct old_timespec32 __user *timeout);
925 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
926 int options, struct rusage __user *ru);
927 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
928 const struct rlimit64 __user *new_rlim,
929 struct rlimit64 __user *old_rlim);
930 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
931 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
933 const char __user *pathname);
934 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
935 struct file_handle __user *handle,
936 int __user *mnt_id, int flag);
937 asmlinkage long sys_open_by_handle_at(int mountdirfd,
938 struct file_handle __user *handle,
940 asmlinkage long sys_clock_adjtime(clockid_t which_clock,
941 struct __kernel_timex __user *tx);
942 asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
943 struct old_timex32 __user *tx);
944 asmlinkage long sys_syncfs(int fd);
945 asmlinkage long sys_setns(int fd, int nstype);
946 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
947 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
948 unsigned int vlen, unsigned flags);
949 asmlinkage long sys_process_vm_readv(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_process_vm_writev(pid_t pid,
956 const struct iovec __user *lvec,
957 unsigned long liovcnt,
958 const struct iovec __user *rvec,
959 unsigned long riovcnt,
960 unsigned long flags);
961 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
962 unsigned long idx1, unsigned long idx2);
963 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
964 asmlinkage long sys_sched_setattr(pid_t pid,
965 struct sched_attr __user *attr,
967 asmlinkage long sys_sched_getattr(pid_t pid,
968 struct sched_attr __user *attr,
971 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
972 int newdfd, const char __user *newname,
974 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
976 asmlinkage long sys_getrandom(char __user *buf, size_t count,
978 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
979 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
980 asmlinkage long sys_execveat(int dfd, const char __user *filename,
981 const char __user *const __user *argv,
982 const char __user *const __user *envp, int flags);
983 asmlinkage long sys_userfaultfd(int flags);
984 asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id);
985 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
986 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
987 int fd_out, loff_t __user *off_out,
988 size_t len, unsigned int flags);
989 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
990 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
992 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
993 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
995 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
996 unsigned long prot, int pkey);
997 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
998 asmlinkage long sys_pkey_free(int pkey);
999 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
1000 unsigned mask, struct statx __user *buffer);
1001 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
1002 int flags, uint32_t sig);
1003 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
1004 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
1005 int to_dfd, const char __user *to_path,
1006 unsigned int ms_flags);
1007 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
1008 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
1009 const void __user *value, int aux);
1010 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
1011 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
1012 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
1013 siginfo_t __user *info,
1014 unsigned int flags);
1015 asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
1018 * Architecture-specific system calls
1021 /* arch/x86/kernel/ioport.c */
1022 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
1024 /* pciconfig: alpha, arm, arm64, ia64, sparc */
1025 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
1026 unsigned long off, unsigned long len,
1028 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
1029 unsigned long off, unsigned long len,
1031 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
1034 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
1035 __u32 __user *ustatus);
1036 asmlinkage long sys_spu_create(const char __user *name,
1037 unsigned int flags, umode_t mode, int fd);
1041 * Deprecated system calls which are still defined in
1042 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
1045 /* __ARCH_WANT_SYSCALL_NO_AT */
1046 asmlinkage long sys_open(const char __user *filename,
1047 int flags, umode_t mode);
1048 asmlinkage long sys_link(const char __user *oldname,
1049 const char __user *newname);
1050 asmlinkage long sys_unlink(const char __user *pathname);
1051 asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
1053 asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
1054 asmlinkage long sys_chown(const char __user *filename,
1055 uid_t user, gid_t group);
1056 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
1057 asmlinkage long sys_rmdir(const char __user *pathname);
1058 asmlinkage long sys_lchown(const char __user *filename,
1059 uid_t user, gid_t group);
1060 asmlinkage long sys_access(const char __user *filename, int mode);
1061 asmlinkage long sys_rename(const char __user *oldname,
1062 const char __user *newname);
1063 asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1064 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1065 asmlinkage long sys_stat64(const char __user *filename,
1066 struct stat64 __user *statbuf);
1067 asmlinkage long sys_lstat64(const char __user *filename,
1068 struct stat64 __user *statbuf);
1071 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
1072 asmlinkage long sys_pipe(int __user *fildes);
1073 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1074 asmlinkage long sys_epoll_create(int size);
1075 asmlinkage long sys_inotify_init(void);
1076 asmlinkage long sys_eventfd(unsigned int count);
1077 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1079 /* __ARCH_WANT_SYSCALL_OFF_T */
1080 asmlinkage long sys_sendfile(int out_fd, int in_fd,
1081 off_t __user *offset, size_t count);
1082 asmlinkage long sys_newstat(const char __user *filename,
1083 struct stat __user *statbuf);
1084 asmlinkage long sys_newlstat(const char __user *filename,
1085 struct stat __user *statbuf);
1086 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1088 /* __ARCH_WANT_SYSCALL_DEPRECATED */
1089 asmlinkage long sys_alarm(unsigned int seconds);
1090 asmlinkage long sys_getpgrp(void);
1091 asmlinkage long sys_pause(void);
1092 asmlinkage long sys_time(__kernel_old_time_t __user *tloc);
1093 asmlinkage long sys_time32(old_time32_t __user *tloc);
1094 #ifdef __ARCH_WANT_SYS_UTIME
1095 asmlinkage long sys_utime(char __user *filename,
1096 struct utimbuf __user *times);
1097 asmlinkage long sys_utimes(char __user *filename,
1098 struct __kernel_old_timeval __user *utimes);
1099 asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1100 struct __kernel_old_timeval __user *utimes);
1102 asmlinkage long sys_futimesat_time32(unsigned int dfd,
1103 const char __user *filename,
1104 struct old_timeval32 __user *t);
1105 asmlinkage long sys_utime32(const char __user *filename,
1106 struct old_utimbuf32 __user *t);
1107 asmlinkage long sys_utimes_time32(const char __user *filename,
1108 struct old_timeval32 __user *t);
1109 asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1110 asmlinkage long sys_getdents(unsigned int fd,
1111 struct linux_dirent __user *dirent,
1112 unsigned int count);
1113 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1114 fd_set __user *exp, struct __kernel_old_timeval __user *tvp);
1115 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1117 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1118 int maxevents, int timeout);
1119 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1120 asmlinkage long sys_vfork(void);
1121 asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1122 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1123 asmlinkage long sys_bdflush(int func, long data);
1124 asmlinkage long sys_oldumount(char __user *name);
1125 asmlinkage long sys_uselib(const char __user *library);
1126 asmlinkage long sys_sysfs(int option,
1127 unsigned long arg1, unsigned long arg2);
1128 asmlinkage long sys_fork(void);
1130 /* obsolete: kernel/time/time.c */
1131 asmlinkage long sys_stime(__kernel_old_time_t __user *tptr);
1132 asmlinkage long sys_stime32(old_time32_t __user *tptr);
1134 /* obsolete: kernel/signal.c */
1135 asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1136 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1137 old_sigset_t __user *oset);
1138 #ifdef CONFIG_OLD_SIGSUSPEND
1139 asmlinkage long sys_sigsuspend(old_sigset_t mask);
1142 #ifdef CONFIG_OLD_SIGSUSPEND3
1143 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1146 #ifdef CONFIG_OLD_SIGACTION
1147 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1148 struct old_sigaction __user *);
1150 asmlinkage long sys_sgetmask(void);
1151 asmlinkage long sys_ssetmask(int newmask);
1152 asmlinkage long sys_signal(int sig, __sighandler_t handler);
1154 /* obsolete: kernel/sched/core.c */
1155 asmlinkage long sys_nice(int increment);
1157 /* obsolete: kernel/kexec_file.c */
1158 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1159 unsigned long cmdline_len,
1160 const char __user *cmdline_ptr,
1161 unsigned long flags);
1163 /* obsolete: kernel/exit.c */
1164 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1166 /* obsolete: kernel/uid16.c */
1167 #ifdef CONFIG_HAVE_UID16
1168 asmlinkage long sys_chown16(const char __user *filename,
1169 old_uid_t user, old_gid_t group);
1170 asmlinkage long sys_lchown16(const char __user *filename,
1171 old_uid_t user, old_gid_t group);
1172 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1173 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1174 asmlinkage long sys_setgid16(old_gid_t gid);
1175 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1176 asmlinkage long sys_setuid16(old_uid_t uid);
1177 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1178 asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1179 old_uid_t __user *euid, old_uid_t __user *suid);
1180 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1181 asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1182 old_gid_t __user *egid, old_gid_t __user *sgid);
1183 asmlinkage long sys_setfsuid16(old_uid_t uid);
1184 asmlinkage long sys_setfsgid16(old_gid_t gid);
1185 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1186 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1187 asmlinkage long sys_getuid16(void);
1188 asmlinkage long sys_geteuid16(void);
1189 asmlinkage long sys_getgid16(void);
1190 asmlinkage long sys_getegid16(void);
1193 /* obsolete: net/socket.c */
1194 asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1196 /* obsolete: fs/stat.c */
1197 asmlinkage long sys_stat(const char __user *filename,
1198 struct __old_kernel_stat __user *statbuf);
1199 asmlinkage long sys_lstat(const char __user *filename,
1200 struct __old_kernel_stat __user *statbuf);
1201 asmlinkage long sys_fstat(unsigned int fd,
1202 struct __old_kernel_stat __user *statbuf);
1203 asmlinkage long sys_readlink(const char __user *path,
1204 char __user *buf, int bufsiz);
1206 /* obsolete: fs/select.c */
1207 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1209 /* obsolete: fs/readdir.c */
1210 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1212 /* obsolete: kernel/sys.c */
1213 asmlinkage long sys_gethostname(char __user *name, int len);
1214 asmlinkage long sys_uname(struct old_utsname __user *);
1215 asmlinkage long sys_olduname(struct oldold_utsname __user *);
1216 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1217 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1221 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1222 unsigned long third, void __user *ptr, long fifth);
1225 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1226 unsigned long prot, unsigned long flags,
1227 unsigned long fd, unsigned long pgoff);
1228 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1232 * Not a real system call, but a placeholder for syscalls which are
1233 * not implemented -- see kernel/sys_ni.c
1235 asmlinkage long sys_ni_syscall(void);
1237 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1241 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1242 * Instead, use one of the functions which work equivalently, such as
1243 * the ksys_xyzyyz() functions prototyped below.
1245 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1246 int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1247 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1248 void ksys_sync(void);
1249 int ksys_unshare(unsigned long unshare_flags);
1250 int ksys_setsid(void);
1251 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1252 unsigned int flags);
1253 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1255 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1256 size_t count, loff_t pos);
1257 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1258 #ifdef CONFIG_ADVISE_SYSCALLS
1259 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1261 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1267 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1268 unsigned long prot, unsigned long flags,
1269 unsigned long fd, unsigned long pgoff);
1270 ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1271 int ksys_ipc(unsigned int call, int first, unsigned long second,
1272 unsigned long third, void __user * ptr, long fifth);
1273 int compat_ksys_ipc(u32 call, int first, int second,
1274 u32 third, u32 ptr, u32 fifth);
1277 * The following kernel syscall equivalents are just wrappers to fs-internal
1278 * functions. Therefore, provide stubs to be inlined at the callsites.
1280 extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1281 gid_t group, int flag);
1283 static inline long ksys_chown(const char __user *filename, uid_t user,
1286 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1289 static inline long ksys_lchown(const char __user *filename, uid_t user,
1292 return do_fchownat(AT_FDCWD, filename, user, group,
1293 AT_SYMLINK_NOFOLLOW);
1296 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1298 static inline long ksys_ftruncate(unsigned int fd, loff_t length)
1300 return do_sys_ftruncate(fd, length, 1);
1303 extern long do_sys_truncate(const char __user *pathname, loff_t length);
1305 static inline long ksys_truncate(const char __user *pathname, loff_t length)
1307 return do_sys_truncate(pathname, length);
1310 static inline unsigned int ksys_personality(unsigned int personality)
1312 unsigned int old = current->personality;
1314 if (personality != 0xffffffff)
1315 set_personality(personality);
1320 /* for __ARCH_WANT_SYS_IPC */
1321 long ksys_semtimedop(int semid, struct sembuf __user *tsops,
1323 const struct __kernel_timespec __user *timeout);
1324 long ksys_semget(key_t key, int nsems, int semflg);
1325 long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
1326 long ksys_msgget(key_t key, int msgflg);
1327 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
1328 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1329 long msgtyp, int msgflg);
1330 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1332 long ksys_shmget(key_t key, size_t size, int shmflg);
1333 long ksys_shmdt(char __user *shmaddr);
1334 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
1335 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
1337 const struct old_timespec32 __user *timeout);
1339 int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
1340 int __user *optlen);
1341 int __sys_setsockopt(int fd, int level, int optname, char __user *optval,