2 * syscalls.h - Linux syscall interfaces (non-arch-specific)
4 * Copyright (c) 2004 Randy Dunlap
5 * Copyright (c) 2004 Open Source Development Labs
7 * This file is released under the GPLv2.
8 * See the file COPYING for more details.
11 #ifndef _LINUX_SYSCALLS_H
12 #define _LINUX_SYSCALLS_H
24 struct linux_dirent64;
26 struct mmap_arg_struct;
33 struct __old_kernel_stat;
34 struct oldold_utsname;
42 struct sel_arg_struct;
62 struct compat_timeval;
63 struct robust_list_head;
65 struct old_linux_dirent;
66 struct perf_event_attr;
71 #include <linux/types.h>
72 #include <linux/aio_abi.h>
73 #include <linux/capability.h>
74 #include <linux/signal.h>
75 #include <linux/list.h>
76 #include <linux/bug.h>
77 #include <linux/sem.h>
78 #include <asm/siginfo.h>
79 #include <linux/unistd.h>
80 #include <linux/quota.h>
81 #include <linux/key.h>
82 #include <trace/syscall.h>
84 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
86 * It may be useful for an architecture to override the definitions of the
87 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
88 * different calling convention for syscalls. To allow for that, the prototypes
89 * for the sys_*() functions below will *not* be included if
90 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
92 #include <asm/syscall_wrapper.h>
93 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
96 * __MAP - apply a macro to syscall arguments
97 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
98 * m(t1, a1), m(t2, a2), ..., m(tn, an)
99 * The first argument must be equal to the amount of type/name
100 * pairs given. Note that this list of pairs (i.e. the arguments
101 * of __MAP starting at the third one) is in the same format as
102 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
104 #define __MAP0(m,...)
105 #define __MAP1(m,t,a,...) m(t,a)
106 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
107 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
108 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
109 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
110 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
111 #define __MAP(n,...) __MAP##n(__VA_ARGS__)
113 #define __SC_DECL(t, a) t a
114 #define __TYPE_AS(t, v) __same_type((__force t)0, v)
115 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
116 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
117 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
118 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
119 #define __SC_CAST(t, a) (__force t) a
120 #define __SC_ARGS(t, a) a
121 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
123 #ifdef CONFIG_FTRACE_SYSCALLS
124 #define __SC_STR_ADECL(t, a) #a
125 #define __SC_STR_TDECL(t, a) #t
127 extern struct trace_event_class event_class_syscall_enter;
128 extern struct trace_event_class event_class_syscall_exit;
129 extern struct trace_event_functions enter_syscall_print_funcs;
130 extern struct trace_event_functions exit_syscall_print_funcs;
132 #define SYSCALL_TRACE_ENTER_EVENT(sname) \
133 static struct syscall_metadata __syscall_meta_##sname; \
134 static struct trace_event_call __used \
135 event_enter_##sname = { \
136 .class = &event_class_syscall_enter, \
138 .name = "sys_enter"#sname, \
140 .event.funcs = &enter_syscall_print_funcs, \
141 .data = (void *)&__syscall_meta_##sname,\
142 .flags = TRACE_EVENT_FL_CAP_ANY, \
144 static struct trace_event_call __used \
145 __attribute__((section("_ftrace_events"))) \
146 *__event_enter_##sname = &event_enter_##sname;
148 #define SYSCALL_TRACE_EXIT_EVENT(sname) \
149 static struct syscall_metadata __syscall_meta_##sname; \
150 static struct trace_event_call __used \
151 event_exit_##sname = { \
152 .class = &event_class_syscall_exit, \
154 .name = "sys_exit"#sname, \
156 .event.funcs = &exit_syscall_print_funcs, \
157 .data = (void *)&__syscall_meta_##sname,\
158 .flags = TRACE_EVENT_FL_CAP_ANY, \
160 static struct trace_event_call __used \
161 __attribute__((section("_ftrace_events"))) \
162 *__event_exit_##sname = &event_exit_##sname;
164 #define SYSCALL_METADATA(sname, nb, ...) \
165 static const char *types_##sname[] = { \
166 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
168 static const char *args_##sname[] = { \
169 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
171 SYSCALL_TRACE_ENTER_EVENT(sname); \
172 SYSCALL_TRACE_EXIT_EVENT(sname); \
173 static struct syscall_metadata __used \
174 __syscall_meta_##sname = { \
175 .name = "sys"#sname, \
176 .syscall_nr = -1, /* Filled in at boot */ \
178 .types = nb ? types_##sname : NULL, \
179 .args = nb ? args_##sname : NULL, \
180 .enter_event = &event_enter_##sname, \
181 .exit_event = &event_exit_##sname, \
182 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
184 static struct syscall_metadata __used \
185 __attribute__((section("__syscalls_metadata"))) \
186 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
188 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
190 return tp_event->class == &event_class_syscall_enter ||
191 tp_event->class == &event_class_syscall_exit;
195 #define SYSCALL_METADATA(sname, nb, ...)
197 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
203 #ifndef SYSCALL_DEFINE0
204 #define SYSCALL_DEFINE0(sname) \
205 SYSCALL_METADATA(_##sname, 0); \
206 asmlinkage long sys_##sname(void); \
207 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
208 asmlinkage long sys_##sname(void)
209 #endif /* SYSCALL_DEFINE0 */
211 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
212 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
213 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
214 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
215 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
216 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
218 #define SYSCALL_DEFINE_MAXARGS 6
220 #define SYSCALL_DEFINEx(x, sname, ...) \
221 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
222 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
224 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
227 * The asmlinkage stub is aliased to a function named __se_sys_*() which
228 * sign-extends 32-bit ints to longs whenever needed. The actual work is
229 * done within __do_sys_*().
231 #ifndef __SYSCALL_DEFINEx
232 #define __SYSCALL_DEFINEx(x, name, ...) \
233 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
234 __attribute__((alias(__stringify(__se_sys##name)))); \
235 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
236 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
237 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
238 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
240 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
241 __MAP(x,__SC_TEST,__VA_ARGS__); \
242 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
245 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
246 #endif /* __SYSCALL_DEFINEx */
249 * Called before coming back to user-mode. Returning to user-mode with an
250 * address limit different than USER_DS can allow to overwrite kernel memory.
252 static inline void addr_limit_user_check(void)
255 if (!test_thread_flag(TIF_FSCHECK))
259 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS),
260 "Invalid address limit on user-mode return"))
261 force_sig(SIGKILL, current);
264 clear_thread_flag(TIF_FSCHECK);
269 * These syscall function prototypes are kept in the same order as
270 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
271 * followed by deprecated or obsolete system calls.
273 * Please note that these prototypes here are only provided for information
274 * purposes, for static analysis, and for linking from the syscall table.
275 * These functions should not be called elsewhere from kernel code.
277 * As the syscall calling convention may be different from the default
278 * for architectures overriding the syscall calling convention, do not
279 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
281 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
282 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
283 asmlinkage long sys_io_destroy(aio_context_t ctx);
284 asmlinkage long sys_io_submit(aio_context_t, long,
285 struct iocb __user * __user *);
286 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
287 struct io_event __user *result);
288 asmlinkage long sys_io_getevents(aio_context_t ctx_id,
291 struct io_event __user *events,
292 struct timespec __user *timeout);
295 asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
296 const void __user *value, size_t size, int flags);
297 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
298 const void __user *value, size_t size, int flags);
299 asmlinkage long sys_fsetxattr(int fd, const char __user *name,
300 const void __user *value, size_t size, int flags);
301 asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
302 void __user *value, size_t size);
303 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
304 void __user *value, size_t size);
305 asmlinkage long sys_fgetxattr(int fd, const char __user *name,
306 void __user *value, size_t size);
307 asmlinkage long sys_listxattr(const char __user *path, char __user *list,
309 asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
311 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
312 asmlinkage long sys_removexattr(const char __user *path,
313 const char __user *name);
314 asmlinkage long sys_lremovexattr(const char __user *path,
315 const char __user *name);
316 asmlinkage long sys_fremovexattr(int fd, const char __user *name);
319 asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
322 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
325 asmlinkage long sys_eventfd2(unsigned int count, int flags);
328 asmlinkage long sys_epoll_create1(int flags);
329 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
330 struct epoll_event __user *event);
331 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
332 int maxevents, int timeout,
333 const sigset_t __user *sigmask,
337 asmlinkage long sys_dup(unsigned int fildes);
338 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
339 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
340 #if BITS_PER_LONG == 32
341 asmlinkage long sys_fcntl64(unsigned int fd,
342 unsigned int cmd, unsigned long arg);
345 /* fs/inotify_user.c */
346 asmlinkage long sys_inotify_init1(int flags);
347 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
349 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
352 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
356 asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
357 asmlinkage long sys_ioprio_get(int which, int who);
360 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
363 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
365 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
366 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
367 asmlinkage long sys_symlinkat(const char __user * oldname,
368 int newdfd, const char __user * newname);
369 asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
370 int newdfd, const char __user *newname, int flags);
371 asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
372 int newdfd, const char __user * newname);
375 asmlinkage long sys_umount(char __user *name, int flags);
376 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
377 char __user *type, unsigned long flags,
379 asmlinkage long sys_pivot_root(const char __user *new_root,
380 const char __user *put_old);
385 asmlinkage long sys_statfs(const char __user * path,
386 struct statfs __user *buf);
387 asmlinkage long sys_statfs64(const char __user *path, size_t sz,
388 struct statfs64 __user *buf);
389 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
390 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
391 struct statfs64 __user *buf);
392 asmlinkage long sys_truncate(const char __user *path, long length);
393 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
394 #if BITS_PER_LONG == 32
395 asmlinkage long sys_truncate64(const char __user *path, loff_t length);
396 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
398 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
399 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
400 asmlinkage long sys_chdir(const char __user *filename);
401 asmlinkage long sys_fchdir(unsigned int fd);
402 asmlinkage long sys_chroot(const char __user *filename);
403 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
404 asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
406 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
407 gid_t group, int flag);
408 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
409 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
411 asmlinkage long sys_close(unsigned int fd);
412 asmlinkage long sys_vhangup(void);
415 asmlinkage long sys_pipe2(int __user *fildes, int flags);
418 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
419 qid_t id, void __user *addr);
422 asmlinkage long sys_getdents64(unsigned int fd,
423 struct linux_dirent64 __user *dirent,
426 /* fs/read_write.c */
427 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
428 unsigned long offset_low, loff_t __user *result,
429 unsigned int whence);
430 asmlinkage long sys_lseek(unsigned int fd, off_t offset,
431 unsigned int whence);
432 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
433 asmlinkage long sys_write(unsigned int fd, const char __user *buf,
435 asmlinkage long sys_readv(unsigned long fd,
436 const struct iovec __user *vec,
438 asmlinkage long sys_writev(unsigned long fd,
439 const struct iovec __user *vec,
441 asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
442 size_t count, loff_t pos);
443 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
444 size_t count, loff_t pos);
445 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
446 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
447 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
448 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
451 asmlinkage long sys_sendfile64(int out_fd, int in_fd,
452 loff_t __user *offset, size_t count);
455 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
456 fd_set __user *, struct timespec __user *,
458 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
459 struct timespec __user *, const sigset_t __user *,
463 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
466 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
467 unsigned long nr_segs, unsigned int flags);
468 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
469 int fd_out, loff_t __user *off_out,
470 size_t len, unsigned int flags);
471 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
474 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
476 asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
477 struct stat __user *statbuf, int flag);
478 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
479 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
480 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
481 asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
482 struct stat64 __user *statbuf, int flag);
486 asmlinkage long sys_sync(void);
487 asmlinkage long sys_fsync(unsigned int fd);
488 asmlinkage long sys_fdatasync(unsigned int fd);
489 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
490 loff_t offset, loff_t nbytes);
491 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
495 asmlinkage long sys_timerfd_create(int clockid, int flags);
496 asmlinkage long sys_timerfd_settime(int ufd, int flags,
497 const struct itimerspec __user *utmr,
498 struct itimerspec __user *otmr);
499 asmlinkage long sys_timerfd_gettime(int ufd, struct itimerspec __user *otmr);
502 asmlinkage long sys_utimensat(int dfd, const char __user *filename,
503 struct timespec __user *utimes, int flags);
506 asmlinkage long sys_acct(const char __user *name);
508 /* kernel/capability.c */
509 asmlinkage long sys_capget(cap_user_header_t header,
510 cap_user_data_t dataptr);
511 asmlinkage long sys_capset(cap_user_header_t header,
512 const cap_user_data_t data);
514 /* kernel/exec_domain.c */
515 asmlinkage long sys_personality(unsigned int personality);
518 asmlinkage long sys_exit(int error_code);
519 asmlinkage long sys_exit_group(int error_code);
520 asmlinkage long sys_waitid(int which, pid_t pid,
521 struct siginfo __user *infop,
522 int options, struct rusage __user *ru);
525 asmlinkage long sys_set_tid_address(int __user *tidptr);
526 asmlinkage long sys_unshare(unsigned long unshare_flags);
529 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
530 struct timespec __user *utime, u32 __user *uaddr2,
532 asmlinkage long sys_get_robust_list(int pid,
533 struct robust_list_head __user * __user *head_ptr,
534 size_t __user *len_ptr);
535 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
538 /* kernel/hrtimer.c */
539 asmlinkage long sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp);
541 /* kernel/itimer.c */
542 asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
543 asmlinkage long sys_setitimer(int which,
544 struct itimerval __user *value,
545 struct itimerval __user *ovalue);
548 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
549 struct kexec_segment __user *segments,
550 unsigned long flags);
552 /* kernel/module.c */
553 asmlinkage long sys_init_module(void __user *umod, unsigned long len,
554 const char __user *uargs);
555 asmlinkage long sys_delete_module(const char __user *name_user,
558 /* kernel/posix-timers.c */
559 asmlinkage long sys_timer_create(clockid_t which_clock,
560 struct sigevent __user *timer_event_spec,
561 timer_t __user * created_timer_id);
562 asmlinkage long sys_timer_gettime(timer_t timer_id,
563 struct itimerspec __user *setting);
564 asmlinkage long sys_timer_getoverrun(timer_t timer_id);
565 asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
566 const struct itimerspec __user *new_setting,
567 struct itimerspec __user *old_setting);
568 asmlinkage long sys_timer_delete(timer_t timer_id);
569 asmlinkage long sys_clock_settime(clockid_t which_clock,
570 const struct timespec __user *tp);
571 asmlinkage long sys_clock_gettime(clockid_t which_clock,
572 struct timespec __user *tp);
573 asmlinkage long sys_clock_getres(clockid_t which_clock,
574 struct timespec __user *tp);
575 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
576 const struct timespec __user *rqtp,
577 struct timespec __user *rmtp);
579 /* kernel/printk.c */
580 asmlinkage long sys_syslog(int type, char __user *buf, int len);
582 /* kernel/ptrace.c */
583 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
585 /* kernel/sched/core.c */
587 asmlinkage long sys_sched_setparam(pid_t pid,
588 struct sched_param __user *param);
589 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
590 struct sched_param __user *param);
591 asmlinkage long sys_sched_getscheduler(pid_t pid);
592 asmlinkage long sys_sched_getparam(pid_t pid,
593 struct sched_param __user *param);
594 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
595 unsigned long __user *user_mask_ptr);
596 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
597 unsigned long __user *user_mask_ptr);
598 asmlinkage long sys_sched_yield(void);
599 asmlinkage long sys_sched_get_priority_max(int policy);
600 asmlinkage long sys_sched_get_priority_min(int policy);
601 asmlinkage long sys_sched_rr_get_interval(pid_t pid,
602 struct timespec __user *interval);
604 /* kernel/signal.c */
605 asmlinkage long sys_restart_syscall(void);
606 asmlinkage long sys_kill(pid_t pid, int sig);
607 asmlinkage long sys_tkill(pid_t pid, int sig);
608 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
609 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
610 struct sigaltstack __user *uoss);
611 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
612 #ifndef CONFIG_ODD_RT_SIGACTION
613 asmlinkage long sys_rt_sigaction(int,
614 const struct sigaction __user *,
615 struct sigaction __user *,
618 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
619 sigset_t __user *oset, size_t sigsetsize);
620 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
621 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
622 siginfo_t __user *uinfo,
623 const struct timespec __user *uts,
625 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
628 asmlinkage long sys_setpriority(int which, int who, int niceval);
629 asmlinkage long sys_getpriority(int which, int who);
630 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
632 asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
633 asmlinkage long sys_setgid(gid_t gid);
634 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
635 asmlinkage long sys_setuid(uid_t uid);
636 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
637 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
638 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
639 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
640 asmlinkage long sys_setfsuid(uid_t uid);
641 asmlinkage long sys_setfsgid(gid_t gid);
642 asmlinkage long sys_times(struct tms __user *tbuf);
643 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
644 asmlinkage long sys_getpgid(pid_t pid);
645 asmlinkage long sys_getsid(pid_t pid);
646 asmlinkage long sys_setsid(void);
647 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
648 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
649 asmlinkage long sys_newuname(struct new_utsname __user *name);
650 asmlinkage long sys_sethostname(char __user *name, int len);
651 asmlinkage long sys_setdomainname(char __user *name, int len);
652 asmlinkage long sys_getrlimit(unsigned int resource,
653 struct rlimit __user *rlim);
654 asmlinkage long sys_setrlimit(unsigned int resource,
655 struct rlimit __user *rlim);
656 asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
657 asmlinkage long sys_umask(int mask);
658 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
659 unsigned long arg4, unsigned long arg5);
660 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
663 asmlinkage long sys_gettimeofday(struct timeval __user *tv,
664 struct timezone __user *tz);
665 asmlinkage long sys_settimeofday(struct timeval __user *tv,
666 struct timezone __user *tz);
667 asmlinkage long sys_adjtimex(struct timex __user *txc_p);
670 asmlinkage long sys_getpid(void);
671 asmlinkage long sys_getppid(void);
672 asmlinkage long sys_getuid(void);
673 asmlinkage long sys_geteuid(void);
674 asmlinkage long sys_getgid(void);
675 asmlinkage long sys_getegid(void);
676 asmlinkage long sys_gettid(void);
677 asmlinkage long sys_sysinfo(struct sysinfo __user *info);
680 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
681 asmlinkage long sys_mq_unlink(const char __user *name);
682 asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct timespec __user *abs_timeout);
683 asmlinkage long sys_mq_timedreceive(mqd_t mqdes, char __user *msg_ptr, size_t msg_len, unsigned int __user *msg_prio, const struct timespec __user *abs_timeout);
684 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
685 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
688 asmlinkage long sys_msgget(key_t key, int msgflg);
689 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
690 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
691 size_t msgsz, long msgtyp, int msgflg);
692 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
693 size_t msgsz, int msgflg);
696 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
697 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
698 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
700 const struct timespec __user *timeout);
701 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
705 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
706 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
707 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
708 asmlinkage long sys_shmdt(char __user *shmaddr);
711 asmlinkage long sys_socket(int, int, int);
712 asmlinkage long sys_socketpair(int, int, int, int __user *);
713 asmlinkage long sys_bind(int, struct sockaddr __user *, int);
714 asmlinkage long sys_listen(int, int);
715 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
716 asmlinkage long sys_connect(int, struct sockaddr __user *, int);
717 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
718 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
719 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
720 struct sockaddr __user *, int);
721 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
722 struct sockaddr __user *, int __user *);
723 asmlinkage long sys_setsockopt(int fd, int level, int optname,
724 char __user *optval, int optlen);
725 asmlinkage long sys_getsockopt(int fd, int level, int optname,
726 char __user *optval, int __user *optlen);
727 asmlinkage long sys_shutdown(int, int);
728 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
729 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
732 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
734 /* mm/nommu.c, also with MMU */
735 asmlinkage long sys_brk(unsigned long brk);
736 asmlinkage long sys_munmap(unsigned long addr, size_t len);
737 asmlinkage long sys_mremap(unsigned long addr,
738 unsigned long old_len, unsigned long new_len,
739 unsigned long flags, unsigned long new_addr);
741 /* security/keys/keyctl.c */
742 asmlinkage long sys_add_key(const char __user *_type,
743 const char __user *_description,
744 const void __user *_payload,
746 key_serial_t destringid);
747 asmlinkage long sys_request_key(const char __user *_type,
748 const char __user *_description,
749 const char __user *_callout_info,
750 key_serial_t destringid);
751 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
752 unsigned long arg4, unsigned long arg5);
754 /* arch/example/kernel/sys_example.c */
755 #ifdef CONFIG_CLONE_BACKWARDS
756 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
759 #ifdef CONFIG_CLONE_BACKWARDS3
760 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
761 int __user *, unsigned long);
763 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
764 int __user *, unsigned long);
767 asmlinkage long sys_execve(const char __user *filename,
768 const char __user *const __user *argv,
769 const char __user *const __user *envp);
772 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
774 /* mm/, CONFIG_MMU only */
775 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
776 asmlinkage long sys_swapoff(const char __user *specialfile);
777 asmlinkage long sys_mprotect(unsigned long start, size_t len,
779 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
780 asmlinkage long sys_mlock(unsigned long start, size_t len);
781 asmlinkage long sys_munlock(unsigned long start, size_t len);
782 asmlinkage long sys_mlockall(int flags);
783 asmlinkage long sys_munlockall(void);
784 asmlinkage long sys_mincore(unsigned long start, size_t len,
785 unsigned char __user * vec);
786 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
787 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
788 unsigned long prot, unsigned long pgoff,
789 unsigned long flags);
790 asmlinkage long sys_mbind(unsigned long start, unsigned long len,
792 const unsigned long __user *nmask,
793 unsigned long maxnode,
795 asmlinkage long sys_get_mempolicy(int __user *policy,
796 unsigned long __user *nmask,
797 unsigned long maxnode,
798 unsigned long addr, unsigned long flags);
799 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
800 unsigned long maxnode);
801 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
802 const unsigned long __user *from,
803 const unsigned long __user *to);
804 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
805 const void __user * __user *pages,
806 const int __user *nodes,
810 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
811 siginfo_t __user *uinfo);
812 asmlinkage long sys_perf_event_open(
813 struct perf_event_attr __user *attr_uptr,
814 pid_t pid, int cpu, int group_fd, unsigned long flags);
815 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
816 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
817 unsigned int vlen, unsigned flags,
818 struct timespec __user *timeout);
820 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
821 int options, struct rusage __user *ru);
822 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
823 const struct rlimit64 __user *new_rlim,
824 struct rlimit64 __user *old_rlim);
825 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
826 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
828 const char __user *pathname);
829 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
830 struct file_handle __user *handle,
831 int __user *mnt_id, int flag);
832 asmlinkage long sys_open_by_handle_at(int mountdirfd,
833 struct file_handle __user *handle,
835 asmlinkage long sys_clock_adjtime(clockid_t which_clock,
836 struct timex __user *tx);
837 asmlinkage long sys_syncfs(int fd);
838 asmlinkage long sys_setns(int fd, int nstype);
839 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
840 unsigned int vlen, unsigned flags);
841 asmlinkage long sys_process_vm_readv(pid_t pid,
842 const struct iovec __user *lvec,
843 unsigned long liovcnt,
844 const struct iovec __user *rvec,
845 unsigned long riovcnt,
846 unsigned long flags);
847 asmlinkage long sys_process_vm_writev(pid_t pid,
848 const struct iovec __user *lvec,
849 unsigned long liovcnt,
850 const struct iovec __user *rvec,
851 unsigned long riovcnt,
852 unsigned long flags);
853 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
854 unsigned long idx1, unsigned long idx2);
855 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
856 asmlinkage long sys_sched_setattr(pid_t pid,
857 struct sched_attr __user *attr,
859 asmlinkage long sys_sched_getattr(pid_t pid,
860 struct sched_attr __user *attr,
863 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
864 int newdfd, const char __user *newname,
866 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
867 const char __user *uargs);
868 asmlinkage long sys_getrandom(char __user *buf, size_t count,
870 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
871 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
872 asmlinkage long sys_execveat(int dfd, const char __user *filename,
873 const char __user *const __user *argv,
874 const char __user *const __user *envp, int flags);
875 asmlinkage long sys_userfaultfd(int flags);
876 asmlinkage long sys_membarrier(int cmd, int flags);
877 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
878 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
879 int fd_out, loff_t __user *off_out,
880 size_t len, unsigned int flags);
881 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
882 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
884 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
885 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
887 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
888 unsigned long prot, int pkey);
889 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
890 asmlinkage long sys_pkey_free(int pkey);
891 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
892 unsigned mask, struct statx __user *buffer);
896 * Architecture-specific system calls
899 /* arch/x86/kernel/ioport.c */
900 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
902 /* pciconfig: alpha, arm, arm64, ia64, sparc */
903 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
904 unsigned long off, unsigned long len,
906 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
907 unsigned long off, unsigned long len,
909 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
912 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
913 __u32 __user *ustatus);
914 asmlinkage long sys_spu_create(const char __user *name,
915 unsigned int flags, umode_t mode, int fd);
919 * Deprecated system calls which are still defined in
920 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
923 /* __ARCH_WANT_SYSCALL_NO_AT */
924 asmlinkage long sys_open(const char __user *filename,
925 int flags, umode_t mode);
926 asmlinkage long sys_link(const char __user *oldname,
927 const char __user *newname);
928 asmlinkage long sys_unlink(const char __user *pathname);
929 asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
931 asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
932 asmlinkage long sys_chown(const char __user *filename,
933 uid_t user, gid_t group);
934 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
935 asmlinkage long sys_rmdir(const char __user *pathname);
936 asmlinkage long sys_lchown(const char __user *filename,
937 uid_t user, gid_t group);
938 asmlinkage long sys_access(const char __user *filename, int mode);
939 asmlinkage long sys_rename(const char __user *oldname,
940 const char __user *newname);
941 asmlinkage long sys_symlink(const char __user *old, const char __user *new);
942 asmlinkage long sys_utimes(char __user *filename,
943 struct timeval __user *utimes);
944 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
945 asmlinkage long sys_stat64(const char __user *filename,
946 struct stat64 __user *statbuf);
947 asmlinkage long sys_lstat64(const char __user *filename,
948 struct stat64 __user *statbuf);
951 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
952 asmlinkage long sys_pipe(int __user *fildes);
953 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
954 asmlinkage long sys_epoll_create(int size);
955 asmlinkage long sys_inotify_init(void);
956 asmlinkage long sys_eventfd(unsigned int count);
957 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
959 /* __ARCH_WANT_SYSCALL_OFF_T */
960 asmlinkage long sys_sendfile(int out_fd, int in_fd,
961 off_t __user *offset, size_t count);
962 asmlinkage long sys_newstat(const char __user *filename,
963 struct stat __user *statbuf);
964 asmlinkage long sys_newlstat(const char __user *filename,
965 struct stat __user *statbuf);
966 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
968 /* __ARCH_WANT_SYSCALL_DEPRECATED */
969 asmlinkage long sys_alarm(unsigned int seconds);
970 asmlinkage long sys_getpgrp(void);
971 asmlinkage long sys_pause(void);
972 asmlinkage long sys_time(time_t __user *tloc);
973 asmlinkage long sys_utime(char __user *filename,
974 struct utimbuf __user *times);
975 asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
976 asmlinkage long sys_getdents(unsigned int fd,
977 struct linux_dirent __user *dirent,
979 asmlinkage long sys_futimesat(int dfd, const char __user *filename,
980 struct timeval __user *utimes);
981 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
982 fd_set __user *exp, struct timeval __user *tvp);
983 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
985 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
986 int maxevents, int timeout);
987 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
988 asmlinkage long sys_vfork(void);
989 asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
990 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
991 asmlinkage long sys_bdflush(int func, long data);
992 asmlinkage long sys_oldumount(char __user *name);
993 asmlinkage long sys_uselib(const char __user *library);
994 asmlinkage long sys_sysctl(struct __sysctl_args __user *args);
995 asmlinkage long sys_sysfs(int option,
996 unsigned long arg1, unsigned long arg2);
997 asmlinkage long sys_fork(void);
999 /* obsolete: kernel/time/time.c */
1000 asmlinkage long sys_stime(time_t __user *tptr);
1002 /* obsolete: kernel/signal.c */
1003 asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1004 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1005 old_sigset_t __user *oset);
1006 #ifdef CONFIG_OLD_SIGSUSPEND
1007 asmlinkage long sys_sigsuspend(old_sigset_t mask);
1010 #ifdef CONFIG_OLD_SIGSUSPEND3
1011 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1014 #ifdef CONFIG_OLD_SIGACTION
1015 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1016 struct old_sigaction __user *);
1018 asmlinkage long sys_sgetmask(void);
1019 asmlinkage long sys_ssetmask(int newmask);
1020 asmlinkage long sys_signal(int sig, __sighandler_t handler);
1022 /* obsolete: kernel/sched/core.c */
1023 asmlinkage long sys_nice(int increment);
1025 /* obsolete: kernel/kexec_file.c */
1026 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1027 unsigned long cmdline_len,
1028 const char __user *cmdline_ptr,
1029 unsigned long flags);
1031 /* obsolete: kernel/exit.c */
1032 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1034 /* obsolete: kernel/uid16.c */
1035 #ifdef CONFIG_HAVE_UID16
1036 asmlinkage long sys_chown16(const char __user *filename,
1037 old_uid_t user, old_gid_t group);
1038 asmlinkage long sys_lchown16(const char __user *filename,
1039 old_uid_t user, old_gid_t group);
1040 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1041 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1042 asmlinkage long sys_setgid16(old_gid_t gid);
1043 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1044 asmlinkage long sys_setuid16(old_uid_t uid);
1045 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1046 asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1047 old_uid_t __user *euid, old_uid_t __user *suid);
1048 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1049 asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1050 old_gid_t __user *egid, old_gid_t __user *sgid);
1051 asmlinkage long sys_setfsuid16(old_uid_t uid);
1052 asmlinkage long sys_setfsgid16(old_gid_t gid);
1053 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1054 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1055 asmlinkage long sys_getuid16(void);
1056 asmlinkage long sys_geteuid16(void);
1057 asmlinkage long sys_getgid16(void);
1058 asmlinkage long sys_getegid16(void);
1061 /* obsolete: net/socket.c */
1062 asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1064 /* obsolete: fs/stat.c */
1065 asmlinkage long sys_stat(const char __user *filename,
1066 struct __old_kernel_stat __user *statbuf);
1067 asmlinkage long sys_lstat(const char __user *filename,
1068 struct __old_kernel_stat __user *statbuf);
1069 asmlinkage long sys_fstat(unsigned int fd,
1070 struct __old_kernel_stat __user *statbuf);
1071 asmlinkage long sys_readlink(const char __user *path,
1072 char __user *buf, int bufsiz);
1074 /* obsolete: fs/select.c */
1075 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1077 /* obsolete: fs/readdir.c */
1078 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1080 /* obsolete: kernel/sys.c */
1081 asmlinkage long sys_gethostname(char __user *name, int len);
1082 asmlinkage long sys_uname(struct old_utsname __user *);
1083 asmlinkage long sys_olduname(struct oldold_utsname __user *);
1084 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1085 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1089 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1090 unsigned long third, void __user *ptr, long fifth);
1093 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1094 unsigned long prot, unsigned long flags,
1095 unsigned long fd, unsigned long pgoff);
1096 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1100 * Not a real system call, but a placeholder for syscalls which are
1101 * not implemented -- see kernel/sys_ni.c
1103 asmlinkage long sys_ni_syscall(void);
1105 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1109 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1110 * Instead, use one of the functions which work equivalently, such as
1111 * the ksys_xyzyyz() functions prototyped below.
1114 int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type,
1115 unsigned long flags, void __user *data);
1116 int ksys_umount(char __user *name, int flags);
1117 int ksys_dup(unsigned int fildes);
1118 int ksys_chroot(const char __user *filename);
1119 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1120 int ksys_chdir(const char __user *filename);
1121 int ksys_fchmod(unsigned int fd, umode_t mode);
1122 int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1123 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent,
1124 unsigned int count);
1125 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
1126 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence);
1127 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1128 void ksys_sync(void);
1129 int ksys_unshare(unsigned long unshare_flags);
1130 int ksys_setsid(void);
1131 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1132 unsigned int flags);
1133 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1135 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1136 size_t count, loff_t pos);
1137 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1138 #ifdef CONFIG_ADVISE_SYSCALLS
1139 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1141 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1147 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1148 unsigned long prot, unsigned long flags,
1149 unsigned long fd, unsigned long pgoff);
1150 ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1153 * The following kernel syscall equivalents are just wrappers to fs-internal
1154 * functions. Therefore, provide stubs to be inlined at the callsites.
1156 extern long do_unlinkat(int dfd, struct filename *name);
1158 static inline long ksys_unlink(const char __user *pathname)
1160 return do_unlinkat(AT_FDCWD, getname(pathname));
1163 extern long do_rmdir(int dfd, const char __user *pathname);
1165 static inline long ksys_rmdir(const char __user *pathname)
1167 return do_rmdir(AT_FDCWD, pathname);
1170 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode);
1172 static inline long ksys_mkdir(const char __user *pathname, umode_t mode)
1174 return do_mkdirat(AT_FDCWD, pathname, mode);
1177 extern long do_symlinkat(const char __user *oldname, int newdfd,
1178 const char __user *newname);
1180 static inline long ksys_symlink(const char __user *oldname,
1181 const char __user *newname)
1183 return do_symlinkat(oldname, AT_FDCWD, newname);
1186 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode,
1189 static inline long ksys_mknod(const char __user *filename, umode_t mode,
1192 return do_mknodat(AT_FDCWD, filename, mode, dev);
1195 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd,
1196 const char __user *newname, int flags);
1198 static inline long ksys_link(const char __user *oldname,
1199 const char __user *newname)
1201 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0);
1204 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode);
1206 static inline int ksys_chmod(const char __user *filename, umode_t mode)
1208 return do_fchmodat(AT_FDCWD, filename, mode);
1211 extern long do_faccessat(int dfd, const char __user *filename, int mode);
1213 static inline long ksys_access(const char __user *filename, int mode)
1215 return do_faccessat(AT_FDCWD, filename, mode);
1218 extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1219 gid_t group, int flag);
1221 static inline long ksys_chown(const char __user *filename, uid_t user,
1224 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1227 static inline long ksys_lchown(const char __user *filename, uid_t user,
1230 return do_fchownat(AT_FDCWD, filename, user, group,
1231 AT_SYMLINK_NOFOLLOW);
1234 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1236 static inline long ksys_ftruncate(unsigned int fd, unsigned long length)
1238 return do_sys_ftruncate(fd, length, 1);
1241 extern int __close_fd(struct files_struct *files, unsigned int fd);
1244 * In contrast to sys_close(), this stub does not check whether the syscall
1245 * should or should not be restarted, but returns the raw error codes from
1248 static inline int ksys_close(unsigned int fd)
1250 return __close_fd(current->files, fd);
1253 extern long do_sys_open(int dfd, const char __user *filename, int flags,
1256 static inline long ksys_open(const char __user *filename, int flags,
1259 if (force_o_largefile())
1260 flags |= O_LARGEFILE;
1261 return do_sys_open(AT_FDCWD, filename, flags, mode);
1264 extern long do_sys_truncate(const char __user *pathname, loff_t length);
1266 static inline long ksys_truncate(const char __user *pathname, loff_t length)
1268 return do_sys_truncate(pathname, length);