2 * syscalls.h - Linux syscall interfaces (non-arch-specific)
4 * Copyright (c) 2004 Randy Dunlap
5 * Copyright (c) 2004 Open Source Development Labs
7 * This file is released under the GPLv2.
8 * See the file COPYING for more details.
11 #ifndef _LINUX_SYSCALLS_H
12 #define _LINUX_SYSCALLS_H
25 struct linux_dirent64;
27 struct mmap_arg_struct;
34 struct __old_kernel_stat;
35 struct oldold_utsname;
43 struct sel_arg_struct;
63 struct compat_timeval;
64 struct robust_list_head;
66 struct old_linux_dirent;
67 struct perf_event_attr;
73 #include <linux/types.h>
74 #include <linux/aio_abi.h>
75 #include <linux/capability.h>
76 #include <linux/signal.h>
77 #include <linux/list.h>
78 #include <linux/bug.h>
79 #include <linux/sem.h>
80 #include <asm/siginfo.h>
81 #include <linux/unistd.h>
82 #include <linux/quota.h>
83 #include <linux/key.h>
84 #include <linux/personality.h>
85 #include <trace/syscall.h>
87 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
89 * It may be useful for an architecture to override the definitions of the
90 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
91 * different calling convention for syscalls. To allow for that, the prototypes
92 * for the sys_*() functions below will *not* be included if
93 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
95 #include <asm/syscall_wrapper.h>
96 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
99 * __MAP - apply a macro to syscall arguments
100 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
101 * m(t1, a1), m(t2, a2), ..., m(tn, an)
102 * The first argument must be equal to the amount of type/name
103 * pairs given. Note that this list of pairs (i.e. the arguments
104 * of __MAP starting at the third one) is in the same format as
105 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
107 #define __MAP0(m,...)
108 #define __MAP1(m,t,a,...) m(t,a)
109 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
110 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
111 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
112 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
113 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
114 #define __MAP(n,...) __MAP##n(__VA_ARGS__)
116 #define __SC_DECL(t, a) t a
117 #define __TYPE_AS(t, v) __same_type((__force t)0, v)
118 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
119 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
120 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
121 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
122 #define __SC_CAST(t, a) (__force t) a
123 #define __SC_ARGS(t, a) a
124 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
126 #ifdef CONFIG_FTRACE_SYSCALLS
127 #define __SC_STR_ADECL(t, a) #a
128 #define __SC_STR_TDECL(t, a) #t
130 extern struct trace_event_class event_class_syscall_enter;
131 extern struct trace_event_class event_class_syscall_exit;
132 extern struct trace_event_functions enter_syscall_print_funcs;
133 extern struct trace_event_functions exit_syscall_print_funcs;
135 #define SYSCALL_TRACE_ENTER_EVENT(sname) \
136 static struct syscall_metadata __syscall_meta_##sname; \
137 static struct trace_event_call __used \
138 event_enter_##sname = { \
139 .class = &event_class_syscall_enter, \
141 .name = "sys_enter"#sname, \
143 .event.funcs = &enter_syscall_print_funcs, \
144 .data = (void *)&__syscall_meta_##sname,\
145 .flags = TRACE_EVENT_FL_CAP_ANY, \
147 static struct trace_event_call __used \
148 __attribute__((section("_ftrace_events"))) \
149 *__event_enter_##sname = &event_enter_##sname;
151 #define SYSCALL_TRACE_EXIT_EVENT(sname) \
152 static struct syscall_metadata __syscall_meta_##sname; \
153 static struct trace_event_call __used \
154 event_exit_##sname = { \
155 .class = &event_class_syscall_exit, \
157 .name = "sys_exit"#sname, \
159 .event.funcs = &exit_syscall_print_funcs, \
160 .data = (void *)&__syscall_meta_##sname,\
161 .flags = TRACE_EVENT_FL_CAP_ANY, \
163 static struct trace_event_call __used \
164 __attribute__((section("_ftrace_events"))) \
165 *__event_exit_##sname = &event_exit_##sname;
167 #define SYSCALL_METADATA(sname, nb, ...) \
168 static const char *types_##sname[] = { \
169 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
171 static const char *args_##sname[] = { \
172 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
174 SYSCALL_TRACE_ENTER_EVENT(sname); \
175 SYSCALL_TRACE_EXIT_EVENT(sname); \
176 static struct syscall_metadata __used \
177 __syscall_meta_##sname = { \
178 .name = "sys"#sname, \
179 .syscall_nr = -1, /* Filled in at boot */ \
181 .types = nb ? types_##sname : NULL, \
182 .args = nb ? args_##sname : NULL, \
183 .enter_event = &event_enter_##sname, \
184 .exit_event = &event_exit_##sname, \
185 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
187 static struct syscall_metadata __used \
188 __attribute__((section("__syscalls_metadata"))) \
189 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
191 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
193 return tp_event->class == &event_class_syscall_enter ||
194 tp_event->class == &event_class_syscall_exit;
198 #define SYSCALL_METADATA(sname, nb, ...)
200 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
206 #ifndef SYSCALL_DEFINE0
207 #define SYSCALL_DEFINE0(sname) \
208 SYSCALL_METADATA(_##sname, 0); \
209 asmlinkage long sys_##sname(void); \
210 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
211 asmlinkage long sys_##sname(void)
212 #endif /* SYSCALL_DEFINE0 */
214 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
215 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
216 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
217 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
218 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
219 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
221 #define SYSCALL_DEFINE_MAXARGS 6
223 #define SYSCALL_DEFINEx(x, sname, ...) \
224 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
225 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
227 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
230 * The asmlinkage stub is aliased to a function named __se_sys_*() which
231 * sign-extends 32-bit ints to longs whenever needed. The actual work is
232 * done within __do_sys_*().
234 #ifndef __SYSCALL_DEFINEx
235 #define __SYSCALL_DEFINEx(x, name, ...) \
237 __diag_ignore(GCC, 8, "-Wattribute-alias", \
238 "Type aliasing is used to sanitize syscall arguments");\
239 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
240 __attribute__((alias(__stringify(__se_sys##name)))); \
241 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
242 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
243 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
244 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
246 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
247 __MAP(x,__SC_TEST,__VA_ARGS__); \
248 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
252 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
253 #endif /* __SYSCALL_DEFINEx */
256 * Called before coming back to user-mode. Returning to user-mode with an
257 * address limit different than USER_DS can allow to overwrite kernel memory.
259 static inline void addr_limit_user_check(void)
262 if (!test_thread_flag(TIF_FSCHECK))
266 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS),
267 "Invalid address limit on user-mode return"))
268 force_sig(SIGKILL, current);
271 clear_thread_flag(TIF_FSCHECK);
276 * These syscall function prototypes are kept in the same order as
277 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
278 * followed by deprecated or obsolete system calls.
280 * Please note that these prototypes here are only provided for information
281 * purposes, for static analysis, and for linking from the syscall table.
282 * These functions should not be called elsewhere from kernel code.
284 * As the syscall calling convention may be different from the default
285 * for architectures overriding the syscall calling convention, do not
286 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
288 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
289 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
290 asmlinkage long sys_io_destroy(aio_context_t ctx);
291 asmlinkage long sys_io_submit(aio_context_t, long,
292 struct iocb __user * __user *);
293 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
294 struct io_event __user *result);
295 asmlinkage long sys_io_getevents(aio_context_t ctx_id,
298 struct io_event __user *events,
299 struct timespec __user *timeout);
300 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
303 struct io_event __user *events,
304 struct timespec __user *timeout,
305 const struct __aio_sigset *sig);
308 asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
309 const void __user *value, size_t size, int flags);
310 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
311 const void __user *value, size_t size, int flags);
312 asmlinkage long sys_fsetxattr(int fd, const char __user *name,
313 const void __user *value, size_t size, int flags);
314 asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
315 void __user *value, size_t size);
316 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
317 void __user *value, size_t size);
318 asmlinkage long sys_fgetxattr(int fd, const char __user *name,
319 void __user *value, size_t size);
320 asmlinkage long sys_listxattr(const char __user *path, char __user *list,
322 asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
324 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
325 asmlinkage long sys_removexattr(const char __user *path,
326 const char __user *name);
327 asmlinkage long sys_lremovexattr(const char __user *path,
328 const char __user *name);
329 asmlinkage long sys_fremovexattr(int fd, const char __user *name);
332 asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
335 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
338 asmlinkage long sys_eventfd2(unsigned int count, int flags);
341 asmlinkage long sys_epoll_create1(int flags);
342 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
343 struct epoll_event __user *event);
344 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
345 int maxevents, int timeout,
346 const sigset_t __user *sigmask,
350 asmlinkage long sys_dup(unsigned int fildes);
351 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
352 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
353 #if BITS_PER_LONG == 32
354 asmlinkage long sys_fcntl64(unsigned int fd,
355 unsigned int cmd, unsigned long arg);
358 /* fs/inotify_user.c */
359 asmlinkage long sys_inotify_init1(int flags);
360 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
362 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
365 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
369 asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
370 asmlinkage long sys_ioprio_get(int which, int who);
373 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
376 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
378 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
379 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
380 asmlinkage long sys_symlinkat(const char __user * oldname,
381 int newdfd, const char __user * newname);
382 asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
383 int newdfd, const char __user *newname, int flags);
384 asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
385 int newdfd, const char __user * newname);
388 asmlinkage long sys_umount(char __user *name, int flags);
389 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
390 char __user *type, unsigned long flags,
392 asmlinkage long sys_pivot_root(const char __user *new_root,
393 const char __user *put_old);
398 asmlinkage long sys_statfs(const char __user * path,
399 struct statfs __user *buf);
400 asmlinkage long sys_statfs64(const char __user *path, size_t sz,
401 struct statfs64 __user *buf);
402 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
403 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
404 struct statfs64 __user *buf);
405 asmlinkage long sys_truncate(const char __user *path, long length);
406 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
407 #if BITS_PER_LONG == 32
408 asmlinkage long sys_truncate64(const char __user *path, loff_t length);
409 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
411 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
412 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
413 asmlinkage long sys_chdir(const char __user *filename);
414 asmlinkage long sys_fchdir(unsigned int fd);
415 asmlinkage long sys_chroot(const char __user *filename);
416 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
417 asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
419 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
420 gid_t group, int flag);
421 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
422 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
424 asmlinkage long sys_close(unsigned int fd);
425 asmlinkage long sys_vhangup(void);
428 asmlinkage long sys_pipe2(int __user *fildes, int flags);
431 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
432 qid_t id, void __user *addr);
435 asmlinkage long sys_getdents64(unsigned int fd,
436 struct linux_dirent64 __user *dirent,
439 /* fs/read_write.c */
440 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
441 unsigned long offset_low, loff_t __user *result,
442 unsigned int whence);
443 asmlinkage long sys_lseek(unsigned int fd, off_t offset,
444 unsigned int whence);
445 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
446 asmlinkage long sys_write(unsigned int fd, const char __user *buf,
448 asmlinkage long sys_readv(unsigned long fd,
449 const struct iovec __user *vec,
451 asmlinkage long sys_writev(unsigned long fd,
452 const struct iovec __user *vec,
454 asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
455 size_t count, loff_t pos);
456 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
457 size_t count, loff_t pos);
458 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
459 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
460 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
461 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
464 asmlinkage long sys_sendfile64(int out_fd, int in_fd,
465 loff_t __user *offset, size_t count);
468 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
469 fd_set __user *, struct timespec __user *,
471 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
472 struct timespec __user *, const sigset_t __user *,
476 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
479 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
480 unsigned long nr_segs, unsigned int flags);
481 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
482 int fd_out, loff_t __user *off_out,
483 size_t len, unsigned int flags);
484 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
487 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
489 asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
490 struct stat __user *statbuf, int flag);
491 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
492 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
493 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
494 asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
495 struct stat64 __user *statbuf, int flag);
499 asmlinkage long sys_sync(void);
500 asmlinkage long sys_fsync(unsigned int fd);
501 asmlinkage long sys_fdatasync(unsigned int fd);
502 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
503 loff_t offset, loff_t nbytes);
504 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
508 asmlinkage long sys_timerfd_create(int clockid, int flags);
509 asmlinkage long sys_timerfd_settime(int ufd, int flags,
510 const struct __kernel_itimerspec __user *utmr,
511 struct __kernel_itimerspec __user *otmr);
512 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
515 asmlinkage long sys_utimensat(int dfd, const char __user *filename,
516 struct timespec __user *utimes, int flags);
519 asmlinkage long sys_acct(const char __user *name);
521 /* kernel/capability.c */
522 asmlinkage long sys_capget(cap_user_header_t header,
523 cap_user_data_t dataptr);
524 asmlinkage long sys_capset(cap_user_header_t header,
525 const cap_user_data_t data);
527 /* kernel/exec_domain.c */
528 asmlinkage long sys_personality(unsigned int personality);
531 asmlinkage long sys_exit(int error_code);
532 asmlinkage long sys_exit_group(int error_code);
533 asmlinkage long sys_waitid(int which, pid_t pid,
534 struct siginfo __user *infop,
535 int options, struct rusage __user *ru);
538 asmlinkage long sys_set_tid_address(int __user *tidptr);
539 asmlinkage long sys_unshare(unsigned long unshare_flags);
542 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
543 struct timespec __user *utime, u32 __user *uaddr2,
545 asmlinkage long sys_get_robust_list(int pid,
546 struct robust_list_head __user * __user *head_ptr,
547 size_t __user *len_ptr);
548 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
551 /* kernel/hrtimer.c */
552 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
553 struct __kernel_timespec __user *rmtp);
555 /* kernel/itimer.c */
556 asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
557 asmlinkage long sys_setitimer(int which,
558 struct itimerval __user *value,
559 struct itimerval __user *ovalue);
562 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
563 struct kexec_segment __user *segments,
564 unsigned long flags);
566 /* kernel/module.c */
567 asmlinkage long sys_init_module(void __user *umod, unsigned long len,
568 const char __user *uargs);
569 asmlinkage long sys_delete_module(const char __user *name_user,
572 /* kernel/posix-timers.c */
573 asmlinkage long sys_timer_create(clockid_t which_clock,
574 struct sigevent __user *timer_event_spec,
575 timer_t __user * created_timer_id);
576 asmlinkage long sys_timer_gettime(timer_t timer_id,
577 struct __kernel_itimerspec __user *setting);
578 asmlinkage long sys_timer_getoverrun(timer_t timer_id);
579 asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
580 const struct __kernel_itimerspec __user *new_setting,
581 struct itimerspec __user *old_setting);
582 asmlinkage long sys_timer_delete(timer_t timer_id);
583 asmlinkage long sys_clock_settime(clockid_t which_clock,
584 const struct __kernel_timespec __user *tp);
585 asmlinkage long sys_clock_gettime(clockid_t which_clock,
586 struct __kernel_timespec __user *tp);
587 asmlinkage long sys_clock_getres(clockid_t which_clock,
588 struct __kernel_timespec __user *tp);
589 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
590 const struct __kernel_timespec __user *rqtp,
591 struct __kernel_timespec __user *rmtp);
593 /* kernel/printk.c */
594 asmlinkage long sys_syslog(int type, char __user *buf, int len);
596 /* kernel/ptrace.c */
597 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
599 /* kernel/sched/core.c */
601 asmlinkage long sys_sched_setparam(pid_t pid,
602 struct sched_param __user *param);
603 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
604 struct sched_param __user *param);
605 asmlinkage long sys_sched_getscheduler(pid_t pid);
606 asmlinkage long sys_sched_getparam(pid_t pid,
607 struct sched_param __user *param);
608 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
609 unsigned long __user *user_mask_ptr);
610 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
611 unsigned long __user *user_mask_ptr);
612 asmlinkage long sys_sched_yield(void);
613 asmlinkage long sys_sched_get_priority_max(int policy);
614 asmlinkage long sys_sched_get_priority_min(int policy);
615 asmlinkage long sys_sched_rr_get_interval(pid_t pid,
616 struct timespec __user *interval);
618 /* kernel/signal.c */
619 asmlinkage long sys_restart_syscall(void);
620 asmlinkage long sys_kill(pid_t pid, int sig);
621 asmlinkage long sys_tkill(pid_t pid, int sig);
622 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
623 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
624 struct sigaltstack __user *uoss);
625 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
626 #ifndef CONFIG_ODD_RT_SIGACTION
627 asmlinkage long sys_rt_sigaction(int,
628 const struct sigaction __user *,
629 struct sigaction __user *,
632 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
633 sigset_t __user *oset, size_t sigsetsize);
634 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
635 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
636 siginfo_t __user *uinfo,
637 const struct timespec __user *uts,
639 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
642 asmlinkage long sys_setpriority(int which, int who, int niceval);
643 asmlinkage long sys_getpriority(int which, int who);
644 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
646 asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
647 asmlinkage long sys_setgid(gid_t gid);
648 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
649 asmlinkage long sys_setuid(uid_t uid);
650 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
651 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
652 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
653 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
654 asmlinkage long sys_setfsuid(uid_t uid);
655 asmlinkage long sys_setfsgid(gid_t gid);
656 asmlinkage long sys_times(struct tms __user *tbuf);
657 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
658 asmlinkage long sys_getpgid(pid_t pid);
659 asmlinkage long sys_getsid(pid_t pid);
660 asmlinkage long sys_setsid(void);
661 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
662 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
663 asmlinkage long sys_newuname(struct new_utsname __user *name);
664 asmlinkage long sys_sethostname(char __user *name, int len);
665 asmlinkage long sys_setdomainname(char __user *name, int len);
666 asmlinkage long sys_getrlimit(unsigned int resource,
667 struct rlimit __user *rlim);
668 asmlinkage long sys_setrlimit(unsigned int resource,
669 struct rlimit __user *rlim);
670 asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
671 asmlinkage long sys_umask(int mask);
672 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
673 unsigned long arg4, unsigned long arg5);
674 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
677 asmlinkage long sys_gettimeofday(struct timeval __user *tv,
678 struct timezone __user *tz);
679 asmlinkage long sys_settimeofday(struct timeval __user *tv,
680 struct timezone __user *tz);
681 asmlinkage long sys_adjtimex(struct timex __user *txc_p);
684 asmlinkage long sys_getpid(void);
685 asmlinkage long sys_getppid(void);
686 asmlinkage long sys_getuid(void);
687 asmlinkage long sys_geteuid(void);
688 asmlinkage long sys_getgid(void);
689 asmlinkage long sys_getegid(void);
690 asmlinkage long sys_gettid(void);
691 asmlinkage long sys_sysinfo(struct sysinfo __user *info);
694 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
695 asmlinkage long sys_mq_unlink(const char __user *name);
696 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);
697 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);
698 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
699 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
702 asmlinkage long sys_msgget(key_t key, int msgflg);
703 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
704 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
705 size_t msgsz, long msgtyp, int msgflg);
706 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
707 size_t msgsz, int msgflg);
710 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
711 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
712 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
714 const struct __kernel_timespec __user *timeout);
715 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
719 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
720 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
721 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
722 asmlinkage long sys_shmdt(char __user *shmaddr);
725 asmlinkage long sys_socket(int, int, int);
726 asmlinkage long sys_socketpair(int, int, int, int __user *);
727 asmlinkage long sys_bind(int, struct sockaddr __user *, int);
728 asmlinkage long sys_listen(int, int);
729 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
730 asmlinkage long sys_connect(int, struct sockaddr __user *, int);
731 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
732 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
733 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
734 struct sockaddr __user *, int);
735 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
736 struct sockaddr __user *, int __user *);
737 asmlinkage long sys_setsockopt(int fd, int level, int optname,
738 char __user *optval, int optlen);
739 asmlinkage long sys_getsockopt(int fd, int level, int optname,
740 char __user *optval, int __user *optlen);
741 asmlinkage long sys_shutdown(int, int);
742 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
743 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
746 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
748 /* mm/nommu.c, also with MMU */
749 asmlinkage long sys_brk(unsigned long brk);
750 asmlinkage long sys_munmap(unsigned long addr, size_t len);
751 asmlinkage long sys_mremap(unsigned long addr,
752 unsigned long old_len, unsigned long new_len,
753 unsigned long flags, unsigned long new_addr);
755 /* security/keys/keyctl.c */
756 asmlinkage long sys_add_key(const char __user *_type,
757 const char __user *_description,
758 const void __user *_payload,
760 key_serial_t destringid);
761 asmlinkage long sys_request_key(const char __user *_type,
762 const char __user *_description,
763 const char __user *_callout_info,
764 key_serial_t destringid);
765 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
766 unsigned long arg4, unsigned long arg5);
768 /* arch/example/kernel/sys_example.c */
769 #ifdef CONFIG_CLONE_BACKWARDS
770 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
773 #ifdef CONFIG_CLONE_BACKWARDS3
774 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
775 int __user *, unsigned long);
777 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
778 int __user *, unsigned long);
781 asmlinkage long sys_execve(const char __user *filename,
782 const char __user *const __user *argv,
783 const char __user *const __user *envp);
786 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
788 /* mm/, CONFIG_MMU only */
789 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
790 asmlinkage long sys_swapoff(const char __user *specialfile);
791 asmlinkage long sys_mprotect(unsigned long start, size_t len,
793 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
794 asmlinkage long sys_mlock(unsigned long start, size_t len);
795 asmlinkage long sys_munlock(unsigned long start, size_t len);
796 asmlinkage long sys_mlockall(int flags);
797 asmlinkage long sys_munlockall(void);
798 asmlinkage long sys_mincore(unsigned long start, size_t len,
799 unsigned char __user * vec);
800 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
801 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
802 unsigned long prot, unsigned long pgoff,
803 unsigned long flags);
804 asmlinkage long sys_mbind(unsigned long start, unsigned long len,
806 const unsigned long __user *nmask,
807 unsigned long maxnode,
809 asmlinkage long sys_get_mempolicy(int __user *policy,
810 unsigned long __user *nmask,
811 unsigned long maxnode,
812 unsigned long addr, unsigned long flags);
813 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
814 unsigned long maxnode);
815 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
816 const unsigned long __user *from,
817 const unsigned long __user *to);
818 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
819 const void __user * __user *pages,
820 const int __user *nodes,
824 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
825 siginfo_t __user *uinfo);
826 asmlinkage long sys_perf_event_open(
827 struct perf_event_attr __user *attr_uptr,
828 pid_t pid, int cpu, int group_fd, unsigned long flags);
829 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
830 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
831 unsigned int vlen, unsigned flags,
832 struct timespec __user *timeout);
834 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
835 int options, struct rusage __user *ru);
836 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
837 const struct rlimit64 __user *new_rlim,
838 struct rlimit64 __user *old_rlim);
839 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
840 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
842 const char __user *pathname);
843 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
844 struct file_handle __user *handle,
845 int __user *mnt_id, int flag);
846 asmlinkage long sys_open_by_handle_at(int mountdirfd,
847 struct file_handle __user *handle,
849 asmlinkage long sys_clock_adjtime(clockid_t which_clock,
850 struct timex __user *tx);
851 asmlinkage long sys_syncfs(int fd);
852 asmlinkage long sys_setns(int fd, int nstype);
853 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
854 unsigned int vlen, unsigned flags);
855 asmlinkage long sys_process_vm_readv(pid_t pid,
856 const struct iovec __user *lvec,
857 unsigned long liovcnt,
858 const struct iovec __user *rvec,
859 unsigned long riovcnt,
860 unsigned long flags);
861 asmlinkage long sys_process_vm_writev(pid_t pid,
862 const struct iovec __user *lvec,
863 unsigned long liovcnt,
864 const struct iovec __user *rvec,
865 unsigned long riovcnt,
866 unsigned long flags);
867 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
868 unsigned long idx1, unsigned long idx2);
869 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
870 asmlinkage long sys_sched_setattr(pid_t pid,
871 struct sched_attr __user *attr,
873 asmlinkage long sys_sched_getattr(pid_t pid,
874 struct sched_attr __user *attr,
877 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
878 int newdfd, const char __user *newname,
880 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
881 const char __user *uargs);
882 asmlinkage long sys_getrandom(char __user *buf, size_t count,
884 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
885 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
886 asmlinkage long sys_execveat(int dfd, const char __user *filename,
887 const char __user *const __user *argv,
888 const char __user *const __user *envp, int flags);
889 asmlinkage long sys_userfaultfd(int flags);
890 asmlinkage long sys_membarrier(int cmd, int flags);
891 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
892 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
893 int fd_out, loff_t __user *off_out,
894 size_t len, unsigned int flags);
895 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
896 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
898 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
899 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
901 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
902 unsigned long prot, int pkey);
903 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
904 asmlinkage long sys_pkey_free(int pkey);
905 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
906 unsigned mask, struct statx __user *buffer);
907 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
908 int flags, uint32_t sig);
911 * Architecture-specific system calls
914 /* arch/x86/kernel/ioport.c */
915 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
917 /* pciconfig: alpha, arm, arm64, ia64, sparc */
918 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
919 unsigned long off, unsigned long len,
921 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
922 unsigned long off, unsigned long len,
924 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
927 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
928 __u32 __user *ustatus);
929 asmlinkage long sys_spu_create(const char __user *name,
930 unsigned int flags, umode_t mode, int fd);
934 * Deprecated system calls which are still defined in
935 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
938 /* __ARCH_WANT_SYSCALL_NO_AT */
939 asmlinkage long sys_open(const char __user *filename,
940 int flags, umode_t mode);
941 asmlinkage long sys_link(const char __user *oldname,
942 const char __user *newname);
943 asmlinkage long sys_unlink(const char __user *pathname);
944 asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
946 asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
947 asmlinkage long sys_chown(const char __user *filename,
948 uid_t user, gid_t group);
949 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
950 asmlinkage long sys_rmdir(const char __user *pathname);
951 asmlinkage long sys_lchown(const char __user *filename,
952 uid_t user, gid_t group);
953 asmlinkage long sys_access(const char __user *filename, int mode);
954 asmlinkage long sys_rename(const char __user *oldname,
955 const char __user *newname);
956 asmlinkage long sys_symlink(const char __user *old, const char __user *new);
957 asmlinkage long sys_utimes(char __user *filename,
958 struct timeval __user *utimes);
959 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
960 asmlinkage long sys_stat64(const char __user *filename,
961 struct stat64 __user *statbuf);
962 asmlinkage long sys_lstat64(const char __user *filename,
963 struct stat64 __user *statbuf);
966 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
967 asmlinkage long sys_pipe(int __user *fildes);
968 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
969 asmlinkage long sys_epoll_create(int size);
970 asmlinkage long sys_inotify_init(void);
971 asmlinkage long sys_eventfd(unsigned int count);
972 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
974 /* __ARCH_WANT_SYSCALL_OFF_T */
975 asmlinkage long sys_sendfile(int out_fd, int in_fd,
976 off_t __user *offset, size_t count);
977 asmlinkage long sys_newstat(const char __user *filename,
978 struct stat __user *statbuf);
979 asmlinkage long sys_newlstat(const char __user *filename,
980 struct stat __user *statbuf);
981 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
983 /* __ARCH_WANT_SYSCALL_DEPRECATED */
984 asmlinkage long sys_alarm(unsigned int seconds);
985 asmlinkage long sys_getpgrp(void);
986 asmlinkage long sys_pause(void);
987 asmlinkage long sys_time(time_t __user *tloc);
988 asmlinkage long sys_utime(char __user *filename,
989 struct utimbuf __user *times);
990 asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
991 asmlinkage long sys_getdents(unsigned int fd,
992 struct linux_dirent __user *dirent,
994 asmlinkage long sys_futimesat(int dfd, const char __user *filename,
995 struct timeval __user *utimes);
996 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
997 fd_set __user *exp, struct timeval __user *tvp);
998 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1000 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1001 int maxevents, int timeout);
1002 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1003 asmlinkage long sys_vfork(void);
1004 asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1005 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1006 asmlinkage long sys_bdflush(int func, long data);
1007 asmlinkage long sys_oldumount(char __user *name);
1008 asmlinkage long sys_uselib(const char __user *library);
1009 asmlinkage long sys_sysctl(struct __sysctl_args __user *args);
1010 asmlinkage long sys_sysfs(int option,
1011 unsigned long arg1, unsigned long arg2);
1012 asmlinkage long sys_fork(void);
1014 /* obsolete: kernel/time/time.c */
1015 asmlinkage long sys_stime(time_t __user *tptr);
1017 /* obsolete: kernel/signal.c */
1018 asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1019 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1020 old_sigset_t __user *oset);
1021 #ifdef CONFIG_OLD_SIGSUSPEND
1022 asmlinkage long sys_sigsuspend(old_sigset_t mask);
1025 #ifdef CONFIG_OLD_SIGSUSPEND3
1026 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1029 #ifdef CONFIG_OLD_SIGACTION
1030 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1031 struct old_sigaction __user *);
1033 asmlinkage long sys_sgetmask(void);
1034 asmlinkage long sys_ssetmask(int newmask);
1035 asmlinkage long sys_signal(int sig, __sighandler_t handler);
1037 /* obsolete: kernel/sched/core.c */
1038 asmlinkage long sys_nice(int increment);
1040 /* obsolete: kernel/kexec_file.c */
1041 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1042 unsigned long cmdline_len,
1043 const char __user *cmdline_ptr,
1044 unsigned long flags);
1046 /* obsolete: kernel/exit.c */
1047 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1049 /* obsolete: kernel/uid16.c */
1050 #ifdef CONFIG_HAVE_UID16
1051 asmlinkage long sys_chown16(const char __user *filename,
1052 old_uid_t user, old_gid_t group);
1053 asmlinkage long sys_lchown16(const char __user *filename,
1054 old_uid_t user, old_gid_t group);
1055 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1056 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1057 asmlinkage long sys_setgid16(old_gid_t gid);
1058 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1059 asmlinkage long sys_setuid16(old_uid_t uid);
1060 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1061 asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1062 old_uid_t __user *euid, old_uid_t __user *suid);
1063 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1064 asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1065 old_gid_t __user *egid, old_gid_t __user *sgid);
1066 asmlinkage long sys_setfsuid16(old_uid_t uid);
1067 asmlinkage long sys_setfsgid16(old_gid_t gid);
1068 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1069 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1070 asmlinkage long sys_getuid16(void);
1071 asmlinkage long sys_geteuid16(void);
1072 asmlinkage long sys_getgid16(void);
1073 asmlinkage long sys_getegid16(void);
1076 /* obsolete: net/socket.c */
1077 asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1079 /* obsolete: fs/stat.c */
1080 asmlinkage long sys_stat(const char __user *filename,
1081 struct __old_kernel_stat __user *statbuf);
1082 asmlinkage long sys_lstat(const char __user *filename,
1083 struct __old_kernel_stat __user *statbuf);
1084 asmlinkage long sys_fstat(unsigned int fd,
1085 struct __old_kernel_stat __user *statbuf);
1086 asmlinkage long sys_readlink(const char __user *path,
1087 char __user *buf, int bufsiz);
1089 /* obsolete: fs/select.c */
1090 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1092 /* obsolete: fs/readdir.c */
1093 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1095 /* obsolete: kernel/sys.c */
1096 asmlinkage long sys_gethostname(char __user *name, int len);
1097 asmlinkage long sys_uname(struct old_utsname __user *);
1098 asmlinkage long sys_olduname(struct oldold_utsname __user *);
1099 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1100 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1104 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1105 unsigned long third, void __user *ptr, long fifth);
1108 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1109 unsigned long prot, unsigned long flags,
1110 unsigned long fd, unsigned long pgoff);
1111 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1115 * Not a real system call, but a placeholder for syscalls which are
1116 * not implemented -- see kernel/sys_ni.c
1118 asmlinkage long sys_ni_syscall(void);
1120 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1124 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1125 * Instead, use one of the functions which work equivalently, such as
1126 * the ksys_xyzyyz() functions prototyped below.
1129 int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type,
1130 unsigned long flags, void __user *data);
1131 int ksys_umount(char __user *name, int flags);
1132 int ksys_dup(unsigned int fildes);
1133 int ksys_chroot(const char __user *filename);
1134 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1135 int ksys_chdir(const char __user *filename);
1136 int ksys_fchmod(unsigned int fd, umode_t mode);
1137 int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1138 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent,
1139 unsigned int count);
1140 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
1141 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence);
1142 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1143 void ksys_sync(void);
1144 int ksys_unshare(unsigned long unshare_flags);
1145 int ksys_setsid(void);
1146 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1147 unsigned int flags);
1148 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1150 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1151 size_t count, loff_t pos);
1152 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1153 #ifdef CONFIG_ADVISE_SYSCALLS
1154 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1156 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1162 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1163 unsigned long prot, unsigned long flags,
1164 unsigned long fd, unsigned long pgoff);
1165 ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1168 * The following kernel syscall equivalents are just wrappers to fs-internal
1169 * functions. Therefore, provide stubs to be inlined at the callsites.
1171 extern long do_unlinkat(int dfd, struct filename *name);
1173 static inline long ksys_unlink(const char __user *pathname)
1175 return do_unlinkat(AT_FDCWD, getname(pathname));
1178 extern long do_rmdir(int dfd, const char __user *pathname);
1180 static inline long ksys_rmdir(const char __user *pathname)
1182 return do_rmdir(AT_FDCWD, pathname);
1185 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode);
1187 static inline long ksys_mkdir(const char __user *pathname, umode_t mode)
1189 return do_mkdirat(AT_FDCWD, pathname, mode);
1192 extern long do_symlinkat(const char __user *oldname, int newdfd,
1193 const char __user *newname);
1195 static inline long ksys_symlink(const char __user *oldname,
1196 const char __user *newname)
1198 return do_symlinkat(oldname, AT_FDCWD, newname);
1201 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode,
1204 static inline long ksys_mknod(const char __user *filename, umode_t mode,
1207 return do_mknodat(AT_FDCWD, filename, mode, dev);
1210 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd,
1211 const char __user *newname, int flags);
1213 static inline long ksys_link(const char __user *oldname,
1214 const char __user *newname)
1216 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0);
1219 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode);
1221 static inline int ksys_chmod(const char __user *filename, umode_t mode)
1223 return do_fchmodat(AT_FDCWD, filename, mode);
1226 extern long do_faccessat(int dfd, const char __user *filename, int mode);
1228 static inline long ksys_access(const char __user *filename, int mode)
1230 return do_faccessat(AT_FDCWD, filename, mode);
1233 extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1234 gid_t group, int flag);
1236 static inline long ksys_chown(const char __user *filename, uid_t user,
1239 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1242 static inline long ksys_lchown(const char __user *filename, uid_t user,
1245 return do_fchownat(AT_FDCWD, filename, user, group,
1246 AT_SYMLINK_NOFOLLOW);
1249 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1251 static inline long ksys_ftruncate(unsigned int fd, unsigned long length)
1253 return do_sys_ftruncate(fd, length, 1);
1256 extern int __close_fd(struct files_struct *files, unsigned int fd);
1259 * In contrast to sys_close(), this stub does not check whether the syscall
1260 * should or should not be restarted, but returns the raw error codes from
1263 static inline int ksys_close(unsigned int fd)
1265 return __close_fd(current->files, fd);
1268 extern long do_sys_open(int dfd, const char __user *filename, int flags,
1271 static inline long ksys_open(const char __user *filename, int flags,
1274 if (force_o_largefile())
1275 flags |= O_LARGEFILE;
1276 return do_sys_open(AT_FDCWD, filename, flags, mode);
1279 extern long do_sys_truncate(const char __user *pathname, loff_t length);
1281 static inline long ksys_truncate(const char __user *pathname, loff_t length)
1283 return do_sys_truncate(pathname, length);
1286 static inline unsigned int ksys_personality(unsigned int personality)
1288 unsigned int old = current->personality;
1290 if (personality != 0xffffffff)
1291 set_personality(personality);