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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * syscalls.h - Linux syscall interfaces (non-arch-specific)
4 *
5 * Copyright (c) 2004 Randy Dunlap
6 * Copyright (c) 2004 Open Source Development Labs
7 */
8
9#ifndef _LINUX_SYSCALLS_H
10#define _LINUX_SYSCALLS_H
11
12struct __aio_sigset;
13struct epoll_event;
14struct iattr;
15struct inode;
16struct iocb;
17struct io_event;
18struct iovec;
19struct __kernel_old_itimerval;
20struct kexec_segment;
21struct linux_dirent;
22struct linux_dirent64;
23struct list_head;
24struct mmap_arg_struct;
25struct msgbuf;
26struct user_msghdr;
27struct mmsghdr;
28struct msqid_ds;
29struct new_utsname;
30struct nfsctl_arg;
31struct __old_kernel_stat;
32struct oldold_utsname;
33struct old_utsname;
34struct pollfd;
35struct rlimit;
36struct rlimit64;
37struct rusage;
38struct sched_param;
39struct sched_attr;
40struct sel_arg_struct;
41struct semaphore;
42struct sembuf;
43struct shmid_ds;
44struct sockaddr;
45struct stat;
46struct stat64;
47struct statfs;
48struct statfs64;
49struct statx;
50struct sysinfo;
51struct timespec;
52struct __kernel_old_timeval;
53struct __kernel_timex;
54struct timezone;
55struct tms;
56struct utimbuf;
57struct mq_attr;
58struct compat_stat;
59struct old_timeval32;
60struct robust_list_head;
61struct futex_waitv;
62struct getcpu_cache;
63struct old_linux_dirent;
64struct perf_event_attr;
65struct file_handle;
66struct sigaltstack;
67struct rseq;
68union bpf_attr;
69struct io_uring_params;
70struct clone_args;
71struct open_how;
72struct mount_attr;
73struct landlock_ruleset_attr;
74enum landlock_rule_type;
75
76#include <linux/types.h>
77#include <linux/aio_abi.h>
78#include <linux/capability.h>
79#include <linux/signal.h>
80#include <linux/list.h>
81#include <linux/bug.h>
82#include <linux/sem.h>
83#include <asm/siginfo.h>
84#include <linux/unistd.h>
85#include <linux/quota.h>
86#include <linux/key.h>
87#include <linux/personality.h>
88#include <trace/syscall.h>
89
90#ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
91/*
92 * It may be useful for an architecture to override the definitions of the
93 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
94 * different calling convention for syscalls. To allow for that, the prototypes
95 * for the sys_*() functions below will *not* be included if
96 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
97 */
98#include <asm/syscall_wrapper.h>
99#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
100
101/*
102 * __MAP - apply a macro to syscall arguments
103 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
104 * m(t1, a1), m(t2, a2), ..., m(tn, an)
105 * The first argument must be equal to the amount of type/name
106 * pairs given. Note that this list of pairs (i.e. the arguments
107 * of __MAP starting at the third one) is in the same format as
108 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
109 */
110#define __MAP0(m,...)
111#define __MAP1(m,t,a,...) m(t,a)
112#define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
113#define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
114#define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
115#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
116#define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
117#define __MAP(n,...) __MAP##n(__VA_ARGS__)
118
119#define __SC_DECL(t, a) t a
120#define __TYPE_AS(t, v) __same_type((__force t)0, v)
121#define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
122#define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
123#define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
124#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
125#define __SC_CAST(t, a) (__force t) a
126#define __SC_ARGS(t, a) a
127#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
128
129#ifdef CONFIG_FTRACE_SYSCALLS
130#define __SC_STR_ADECL(t, a) #a
131#define __SC_STR_TDECL(t, a) #t
132
133extern struct trace_event_class event_class_syscall_enter;
134extern struct trace_event_class event_class_syscall_exit;
135extern struct trace_event_functions enter_syscall_print_funcs;
136extern struct trace_event_functions exit_syscall_print_funcs;
137
138#define SYSCALL_TRACE_ENTER_EVENT(sname) \
139 static struct syscall_metadata __syscall_meta_##sname; \
140 static struct trace_event_call __used \
141 event_enter_##sname = { \
142 .class = &event_class_syscall_enter, \
143 { \
144 .name = "sys_enter"#sname, \
145 }, \
146 .event.funcs = &enter_syscall_print_funcs, \
147 .data = (void *)&__syscall_meta_##sname,\
148 .flags = TRACE_EVENT_FL_CAP_ANY, \
149 }; \
150 static struct trace_event_call __used \
151 __section("_ftrace_events") \
152 *__event_enter_##sname = &event_enter_##sname;
153
154#define SYSCALL_TRACE_EXIT_EVENT(sname) \
155 static struct syscall_metadata __syscall_meta_##sname; \
156 static struct trace_event_call __used \
157 event_exit_##sname = { \
158 .class = &event_class_syscall_exit, \
159 { \
160 .name = "sys_exit"#sname, \
161 }, \
162 .event.funcs = &exit_syscall_print_funcs, \
163 .data = (void *)&__syscall_meta_##sname,\
164 .flags = TRACE_EVENT_FL_CAP_ANY, \
165 }; \
166 static struct trace_event_call __used \
167 __section("_ftrace_events") \
168 *__event_exit_##sname = &event_exit_##sname;
169
170#define SYSCALL_METADATA(sname, nb, ...) \
171 static const char *types_##sname[] = { \
172 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
173 }; \
174 static const char *args_##sname[] = { \
175 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
176 }; \
177 SYSCALL_TRACE_ENTER_EVENT(sname); \
178 SYSCALL_TRACE_EXIT_EVENT(sname); \
179 static struct syscall_metadata __used \
180 __syscall_meta_##sname = { \
181 .name = "sys"#sname, \
182 .syscall_nr = -1, /* Filled in at boot */ \
183 .nb_args = nb, \
184 .types = nb ? types_##sname : NULL, \
185 .args = nb ? args_##sname : NULL, \
186 .enter_event = &event_enter_##sname, \
187 .exit_event = &event_exit_##sname, \
188 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
189 }; \
190 static struct syscall_metadata __used \
191 __section("__syscalls_metadata") \
192 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
193
194static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
195{
196 return tp_event->class == &event_class_syscall_enter ||
197 tp_event->class == &event_class_syscall_exit;
198}
199
200#else
201#define SYSCALL_METADATA(sname, nb, ...)
202
203static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
204{
205 return 0;
206}
207#endif
208
209#ifndef SYSCALL_DEFINE0
210#define SYSCALL_DEFINE0(sname) \
211 SYSCALL_METADATA(_##sname, 0); \
212 asmlinkage long sys_##sname(void); \
213 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
214 asmlinkage long sys_##sname(void)
215#endif /* SYSCALL_DEFINE0 */
216
217#define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
218#define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
219#define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
220#define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
221#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
222#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
223
224#define SYSCALL_DEFINE_MAXARGS 6
225
226#define SYSCALL_DEFINEx(x, sname, ...) \
227 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
228 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
229
230#define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
231
232/*
233 * The asmlinkage stub is aliased to a function named __se_sys_*() which
234 * sign-extends 32-bit ints to longs whenever needed. The actual work is
235 * done within __do_sys_*().
236 */
237#ifndef __SYSCALL_DEFINEx
238#define __SYSCALL_DEFINEx(x, name, ...) \
239 __diag_push(); \
240 __diag_ignore(GCC, 8, "-Wattribute-alias", \
241 "Type aliasing is used to sanitize syscall arguments");\
242 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
243 __attribute__((alias(__stringify(__se_sys##name)))); \
244 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
245 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
246 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
247 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
248 { \
249 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
250 __MAP(x,__SC_TEST,__VA_ARGS__); \
251 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
252 return ret; \
253 } \
254 __diag_pop(); \
255 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
256#endif /* __SYSCALL_DEFINEx */
257
258/* For split 64-bit arguments on 32-bit architectures */
259#ifdef __LITTLE_ENDIAN
260#define SC_ARG64(name) u32, name##_lo, u32, name##_hi
261#else
262#define SC_ARG64(name) u32, name##_hi, u32, name##_lo
263#endif
264#define SC_VAL64(type, name) ((type) name##_hi << 32 | name##_lo)
265
266#ifdef CONFIG_COMPAT
267#define SYSCALL32_DEFINE0 COMPAT_SYSCALL_DEFINE0
268#define SYSCALL32_DEFINE1 COMPAT_SYSCALL_DEFINE1
269#define SYSCALL32_DEFINE2 COMPAT_SYSCALL_DEFINE2
270#define SYSCALL32_DEFINE3 COMPAT_SYSCALL_DEFINE3
271#define SYSCALL32_DEFINE4 COMPAT_SYSCALL_DEFINE4
272#define SYSCALL32_DEFINE5 COMPAT_SYSCALL_DEFINE5
273#define SYSCALL32_DEFINE6 COMPAT_SYSCALL_DEFINE6
274#else
275#define SYSCALL32_DEFINE0 SYSCALL_DEFINE0
276#define SYSCALL32_DEFINE1 SYSCALL_DEFINE1
277#define SYSCALL32_DEFINE2 SYSCALL_DEFINE2
278#define SYSCALL32_DEFINE3 SYSCALL_DEFINE3
279#define SYSCALL32_DEFINE4 SYSCALL_DEFINE4
280#define SYSCALL32_DEFINE5 SYSCALL_DEFINE5
281#define SYSCALL32_DEFINE6 SYSCALL_DEFINE6
282#endif
283
284/*
285 * Called before coming back to user-mode. Returning to user-mode with an
286 * address limit different than USER_DS can allow to overwrite kernel memory.
287 */
288static inline void addr_limit_user_check(void)
289{
290#ifdef TIF_FSCHECK
291 if (!test_thread_flag(TIF_FSCHECK))
292 return;
293#endif
294
295#ifdef TIF_FSCHECK
296 clear_thread_flag(TIF_FSCHECK);
297#endif
298}
299
300/*
301 * These syscall function prototypes are kept in the same order as
302 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
303 * followed by deprecated or obsolete system calls.
304 *
305 * Please note that these prototypes here are only provided for information
306 * purposes, for static analysis, and for linking from the syscall table.
307 * These functions should not be called elsewhere from kernel code.
308 *
309 * As the syscall calling convention may be different from the default
310 * for architectures overriding the syscall calling convention, do not
311 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
312 */
313#ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
314asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
315asmlinkage long sys_io_destroy(aio_context_t ctx);
316asmlinkage long sys_io_submit(aio_context_t, long,
317 struct iocb __user * __user *);
318asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
319 struct io_event __user *result);
320asmlinkage long sys_io_getevents(aio_context_t ctx_id,
321 long min_nr,
322 long nr,
323 struct io_event __user *events,
324 struct __kernel_timespec __user *timeout);
325asmlinkage long sys_io_getevents_time32(__u32 ctx_id,
326 __s32 min_nr,
327 __s32 nr,
328 struct io_event __user *events,
329 struct old_timespec32 __user *timeout);
330asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
331 long min_nr,
332 long nr,
333 struct io_event __user *events,
334 struct __kernel_timespec __user *timeout,
335 const struct __aio_sigset *sig);
336asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
337 long min_nr,
338 long nr,
339 struct io_event __user *events,
340 struct old_timespec32 __user *timeout,
341 const struct __aio_sigset *sig);
342asmlinkage long sys_io_uring_setup(u32 entries,
343 struct io_uring_params __user *p);
344asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
345 u32 min_complete, u32 flags,
346 const void __user *argp, size_t argsz);
347asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
348 void __user *arg, unsigned int nr_args);
349
350/* fs/xattr.c */
351asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
352 const void __user *value, size_t size, int flags);
353asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
354 const void __user *value, size_t size, int flags);
355asmlinkage long sys_fsetxattr(int fd, const char __user *name,
356 const void __user *value, size_t size, int flags);
357asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
358 void __user *value, size_t size);
359asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
360 void __user *value, size_t size);
361asmlinkage long sys_fgetxattr(int fd, const char __user *name,
362 void __user *value, size_t size);
363asmlinkage long sys_listxattr(const char __user *path, char __user *list,
364 size_t size);
365asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
366 size_t size);
367asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
368asmlinkage long sys_removexattr(const char __user *path,
369 const char __user *name);
370asmlinkage long sys_lremovexattr(const char __user *path,
371 const char __user *name);
372asmlinkage long sys_fremovexattr(int fd, const char __user *name);
373
374/* fs/dcache.c */
375asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
376
377/* fs/cookies.c */
378asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
379
380/* fs/eventfd.c */
381asmlinkage long sys_eventfd2(unsigned int count, int flags);
382
383/* fs/eventpoll.c */
384asmlinkage long sys_epoll_create1(int flags);
385asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
386 struct epoll_event __user *event);
387asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
388 int maxevents, int timeout,
389 const sigset_t __user *sigmask,
390 size_t sigsetsize);
391asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events,
392 int maxevents,
393 const struct __kernel_timespec __user *timeout,
394 const sigset_t __user *sigmask,
395 size_t sigsetsize);
396
397/* fs/fcntl.c */
398asmlinkage long sys_dup(unsigned int fildes);
399asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
400asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
401#if BITS_PER_LONG == 32
402asmlinkage long sys_fcntl64(unsigned int fd,
403 unsigned int cmd, unsigned long arg);
404#endif
405
406/* fs/inotify_user.c */
407asmlinkage long sys_inotify_init1(int flags);
408asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
409 u32 mask);
410asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
411
412/* fs/ioctl.c */
413asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
414 unsigned long arg);
415
416/* fs/ioprio.c */
417asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
418asmlinkage long sys_ioprio_get(int which, int who);
419
420/* fs/locks.c */
421asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
422
423/* fs/namei.c */
424asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
425 unsigned dev);
426asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
427asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
428asmlinkage long sys_symlinkat(const char __user * oldname,
429 int newdfd, const char __user * newname);
430asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
431 int newdfd, const char __user *newname, int flags);
432asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
433 int newdfd, const char __user * newname);
434
435/* fs/namespace.c */
436asmlinkage long sys_umount(char __user *name, int flags);
437asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
438 char __user *type, unsigned long flags,
439 void __user *data);
440asmlinkage long sys_pivot_root(const char __user *new_root,
441 const char __user *put_old);
442
443/* fs/nfsctl.c */
444
445/* fs/open.c */
446asmlinkage long sys_statfs(const char __user * path,
447 struct statfs __user *buf);
448asmlinkage long sys_statfs64(const char __user *path, size_t sz,
449 struct statfs64 __user *buf);
450asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
451asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
452 struct statfs64 __user *buf);
453asmlinkage long sys_truncate(const char __user *path, long length);
454asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
455#if BITS_PER_LONG == 32
456asmlinkage long sys_truncate64(const char __user *path, loff_t length);
457asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
458#endif
459asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
460asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
461asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode,
462 int flags);
463asmlinkage long sys_chdir(const char __user *filename);
464asmlinkage long sys_fchdir(unsigned int fd);
465asmlinkage long sys_chroot(const char __user *filename);
466asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
467asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
468 umode_t mode);
469asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
470 gid_t group, int flag);
471asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
472asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
473 umode_t mode);
474asmlinkage long sys_openat2(int dfd, const char __user *filename,
475 struct open_how *how, size_t size);
476asmlinkage long sys_close(unsigned int fd);
477asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd,
478 unsigned int flags);
479asmlinkage long sys_vhangup(void);
480
481/* fs/pipe.c */
482asmlinkage long sys_pipe2(int __user *fildes, int flags);
483
484/* fs/quota.c */
485asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
486 qid_t id, void __user *addr);
487asmlinkage long sys_quotactl_fd(unsigned int fd, unsigned int cmd, qid_t id,
488 void __user *addr);
489
490/* fs/readdir.c */
491asmlinkage long sys_getdents64(unsigned int fd,
492 struct linux_dirent64 __user *dirent,
493 unsigned int count);
494
495/* fs/read_write.c */
496asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
497 unsigned long offset_low, loff_t __user *result,
498 unsigned int whence);
499asmlinkage long sys_lseek(unsigned int fd, off_t offset,
500 unsigned int whence);
501asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
502asmlinkage long sys_write(unsigned int fd, const char __user *buf,
503 size_t count);
504asmlinkage long sys_readv(unsigned long fd,
505 const struct iovec __user *vec,
506 unsigned long vlen);
507asmlinkage long sys_writev(unsigned long fd,
508 const struct iovec __user *vec,
509 unsigned long vlen);
510asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
511 size_t count, loff_t pos);
512asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
513 size_t count, loff_t pos);
514asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
515 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
516asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
517 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
518
519/* fs/sendfile.c */
520asmlinkage long sys_sendfile64(int out_fd, int in_fd,
521 loff_t __user *offset, size_t count);
522
523/* fs/select.c */
524asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
525 fd_set __user *, struct __kernel_timespec __user *,
526 void __user *);
527asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
528 fd_set __user *, struct old_timespec32 __user *,
529 void __user *);
530asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
531 struct __kernel_timespec __user *, const sigset_t __user *,
532 size_t);
533asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
534 struct old_timespec32 __user *, const sigset_t __user *,
535 size_t);
536
537/* fs/signalfd.c */
538asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
539
540/* fs/splice.c */
541asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
542 unsigned long nr_segs, unsigned int flags);
543asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
544 int fd_out, loff_t __user *off_out,
545 size_t len, unsigned int flags);
546asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
547
548/* fs/stat.c */
549asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
550 int bufsiz);
551asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
552 struct stat __user *statbuf, int flag);
553asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
554#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
555asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
556asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
557 struct stat64 __user *statbuf, int flag);
558#endif
559
560/* fs/sync.c */
561asmlinkage long sys_sync(void);
562asmlinkage long sys_fsync(unsigned int fd);
563asmlinkage long sys_fdatasync(unsigned int fd);
564asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
565 loff_t offset, loff_t nbytes);
566asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
567 unsigned int flags);
568
569/* fs/timerfd.c */
570asmlinkage long sys_timerfd_create(int clockid, int flags);
571asmlinkage long sys_timerfd_settime(int ufd, int flags,
572 const struct __kernel_itimerspec __user *utmr,
573 struct __kernel_itimerspec __user *otmr);
574asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
575asmlinkage long sys_timerfd_gettime32(int ufd,
576 struct old_itimerspec32 __user *otmr);
577asmlinkage long sys_timerfd_settime32(int ufd, int flags,
578 const struct old_itimerspec32 __user *utmr,
579 struct old_itimerspec32 __user *otmr);
580
581/* fs/utimes.c */
582asmlinkage long sys_utimensat(int dfd, const char __user *filename,
583 struct __kernel_timespec __user *utimes,
584 int flags);
585asmlinkage long sys_utimensat_time32(unsigned int dfd,
586 const char __user *filename,
587 struct old_timespec32 __user *t, int flags);
588
589/* kernel/acct.c */
590asmlinkage long sys_acct(const char __user *name);
591
592/* kernel/capability.c */
593asmlinkage long sys_capget(cap_user_header_t header,
594 cap_user_data_t dataptr);
595asmlinkage long sys_capset(cap_user_header_t header,
596 const cap_user_data_t data);
597
598/* kernel/exec_domain.c */
599asmlinkage long sys_personality(unsigned int personality);
600
601/* kernel/exit.c */
602asmlinkage long sys_exit(int error_code);
603asmlinkage long sys_exit_group(int error_code);
604asmlinkage long sys_waitid(int which, pid_t pid,
605 struct siginfo __user *infop,
606 int options, struct rusage __user *ru);
607
608/* kernel/fork.c */
609asmlinkage long sys_set_tid_address(int __user *tidptr);
610asmlinkage long sys_unshare(unsigned long unshare_flags);
611
612/* kernel/futex/syscalls.c */
613asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
614 const struct __kernel_timespec __user *utime,
615 u32 __user *uaddr2, u32 val3);
616asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
617 const struct old_timespec32 __user *utime,
618 u32 __user *uaddr2, u32 val3);
619asmlinkage long sys_get_robust_list(int pid,
620 struct robust_list_head __user * __user *head_ptr,
621 size_t __user *len_ptr);
622asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
623 size_t len);
624
625asmlinkage long sys_futex_waitv(struct futex_waitv *waiters,
626 unsigned int nr_futexes, unsigned int flags,
627 struct __kernel_timespec __user *timeout, clockid_t clockid);
628
629/* kernel/hrtimer.c */
630asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
631 struct __kernel_timespec __user *rmtp);
632asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
633 struct old_timespec32 __user *rmtp);
634
635/* kernel/itimer.c */
636asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value);
637asmlinkage long sys_setitimer(int which,
638 struct __kernel_old_itimerval __user *value,
639 struct __kernel_old_itimerval __user *ovalue);
640
641/* kernel/kexec.c */
642asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
643 struct kexec_segment __user *segments,
644 unsigned long flags);
645
646/* kernel/module.c */
647asmlinkage long sys_init_module(void __user *umod, unsigned long len,
648 const char __user *uargs);
649asmlinkage long sys_delete_module(const char __user *name_user,
650 unsigned int flags);
651
652/* kernel/posix-timers.c */
653asmlinkage long sys_timer_create(clockid_t which_clock,
654 struct sigevent __user *timer_event_spec,
655 timer_t __user * created_timer_id);
656asmlinkage long sys_timer_gettime(timer_t timer_id,
657 struct __kernel_itimerspec __user *setting);
658asmlinkage long sys_timer_getoverrun(timer_t timer_id);
659asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
660 const struct __kernel_itimerspec __user *new_setting,
661 struct __kernel_itimerspec __user *old_setting);
662asmlinkage long sys_timer_delete(timer_t timer_id);
663asmlinkage long sys_clock_settime(clockid_t which_clock,
664 const struct __kernel_timespec __user *tp);
665asmlinkage long sys_clock_gettime(clockid_t which_clock,
666 struct __kernel_timespec __user *tp);
667asmlinkage long sys_clock_getres(clockid_t which_clock,
668 struct __kernel_timespec __user *tp);
669asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
670 const struct __kernel_timespec __user *rqtp,
671 struct __kernel_timespec __user *rmtp);
672asmlinkage long sys_timer_gettime32(timer_t timer_id,
673 struct old_itimerspec32 __user *setting);
674asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
675 struct old_itimerspec32 __user *new,
676 struct old_itimerspec32 __user *old);
677asmlinkage long sys_clock_settime32(clockid_t which_clock,
678 struct old_timespec32 __user *tp);
679asmlinkage long sys_clock_gettime32(clockid_t which_clock,
680 struct old_timespec32 __user *tp);
681asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
682 struct old_timespec32 __user *tp);
683asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
684 struct old_timespec32 __user *rqtp,
685 struct old_timespec32 __user *rmtp);
686
687/* kernel/printk.c */
688asmlinkage long sys_syslog(int type, char __user *buf, int len);
689
690/* kernel/ptrace.c */
691asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
692 unsigned long data);
693/* kernel/sched/core.c */
694
695asmlinkage long sys_sched_setparam(pid_t pid,
696 struct sched_param __user *param);
697asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
698 struct sched_param __user *param);
699asmlinkage long sys_sched_getscheduler(pid_t pid);
700asmlinkage long sys_sched_getparam(pid_t pid,
701 struct sched_param __user *param);
702asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
703 unsigned long __user *user_mask_ptr);
704asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
705 unsigned long __user *user_mask_ptr);
706asmlinkage long sys_sched_yield(void);
707asmlinkage long sys_sched_get_priority_max(int policy);
708asmlinkage long sys_sched_get_priority_min(int policy);
709asmlinkage long sys_sched_rr_get_interval(pid_t pid,
710 struct __kernel_timespec __user *interval);
711asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
712 struct old_timespec32 __user *interval);
713
714/* kernel/signal.c */
715asmlinkage long sys_restart_syscall(void);
716asmlinkage long sys_kill(pid_t pid, int sig);
717asmlinkage long sys_tkill(pid_t pid, int sig);
718asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
719asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
720 struct sigaltstack __user *uoss);
721asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
722#ifndef CONFIG_ODD_RT_SIGACTION
723asmlinkage long sys_rt_sigaction(int,
724 const struct sigaction __user *,
725 struct sigaction __user *,
726 size_t);
727#endif
728asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
729 sigset_t __user *oset, size_t sigsetsize);
730asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
731asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
732 siginfo_t __user *uinfo,
733 const struct __kernel_timespec __user *uts,
734 size_t sigsetsize);
735asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
736 siginfo_t __user *uinfo,
737 const struct old_timespec32 __user *uts,
738 size_t sigsetsize);
739asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
740
741/* kernel/sys.c */
742asmlinkage long sys_setpriority(int which, int who, int niceval);
743asmlinkage long sys_getpriority(int which, int who);
744asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
745 void __user *arg);
746asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
747asmlinkage long sys_setgid(gid_t gid);
748asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
749asmlinkage long sys_setuid(uid_t uid);
750asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
751asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
752asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
753asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
754asmlinkage long sys_setfsuid(uid_t uid);
755asmlinkage long sys_setfsgid(gid_t gid);
756asmlinkage long sys_times(struct tms __user *tbuf);
757asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
758asmlinkage long sys_getpgid(pid_t pid);
759asmlinkage long sys_getsid(pid_t pid);
760asmlinkage long sys_setsid(void);
761asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
762asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
763asmlinkage long sys_newuname(struct new_utsname __user *name);
764asmlinkage long sys_sethostname(char __user *name, int len);
765asmlinkage long sys_setdomainname(char __user *name, int len);
766asmlinkage long sys_getrlimit(unsigned int resource,
767 struct rlimit __user *rlim);
768asmlinkage long sys_setrlimit(unsigned int resource,
769 struct rlimit __user *rlim);
770asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
771asmlinkage long sys_umask(int mask);
772asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
773 unsigned long arg4, unsigned long arg5);
774asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
775
776/* kernel/time.c */
777asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv,
778 struct timezone __user *tz);
779asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv,
780 struct timezone __user *tz);
781asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
782asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
783
784/* kernel/sys.c */
785asmlinkage long sys_getpid(void);
786asmlinkage long sys_getppid(void);
787asmlinkage long sys_getuid(void);
788asmlinkage long sys_geteuid(void);
789asmlinkage long sys_getgid(void);
790asmlinkage long sys_getegid(void);
791asmlinkage long sys_gettid(void);
792asmlinkage long sys_sysinfo(struct sysinfo __user *info);
793
794/* ipc/mqueue.c */
795asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
796asmlinkage long sys_mq_unlink(const char __user *name);
797asmlinkage 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);
798asmlinkage 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);
799asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
800asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
801asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
802 char __user *u_msg_ptr,
803 unsigned int msg_len, unsigned int __user *u_msg_prio,
804 const struct old_timespec32 __user *u_abs_timeout);
805asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
806 const char __user *u_msg_ptr,
807 unsigned int msg_len, unsigned int msg_prio,
808 const struct old_timespec32 __user *u_abs_timeout);
809
810/* ipc/msg.c */
811asmlinkage long sys_msgget(key_t key, int msgflg);
812asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
813asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
814asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
815 size_t msgsz, long msgtyp, int msgflg);
816asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
817 size_t msgsz, int msgflg);
818
819/* ipc/sem.c */
820asmlinkage long sys_semget(key_t key, int nsems, int semflg);
821asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
822asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
823asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
824 unsigned nsops,
825 const struct __kernel_timespec __user *timeout);
826asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
827 unsigned nsops,
828 const struct old_timespec32 __user *timeout);
829asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
830 unsigned nsops);
831
832/* ipc/shm.c */
833asmlinkage long sys_shmget(key_t key, size_t size, int flag);
834asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
835asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
836asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
837asmlinkage long sys_shmdt(char __user *shmaddr);
838
839/* net/socket.c */
840asmlinkage long sys_socket(int, int, int);
841asmlinkage long sys_socketpair(int, int, int, int __user *);
842asmlinkage long sys_bind(int, struct sockaddr __user *, int);
843asmlinkage long sys_listen(int, int);
844asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
845asmlinkage long sys_connect(int, struct sockaddr __user *, int);
846asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
847asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
848asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
849 struct sockaddr __user *, int);
850asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
851 struct sockaddr __user *, int __user *);
852asmlinkage long sys_setsockopt(int fd, int level, int optname,
853 char __user *optval, int optlen);
854asmlinkage long sys_getsockopt(int fd, int level, int optname,
855 char __user *optval, int __user *optlen);
856asmlinkage long sys_shutdown(int, int);
857asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
858asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
859
860/* mm/filemap.c */
861asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
862
863/* mm/nommu.c, also with MMU */
864asmlinkage long sys_brk(unsigned long brk);
865asmlinkage long sys_munmap(unsigned long addr, size_t len);
866asmlinkage long sys_mremap(unsigned long addr,
867 unsigned long old_len, unsigned long new_len,
868 unsigned long flags, unsigned long new_addr);
869
870/* security/keys/keyctl.c */
871asmlinkage long sys_add_key(const char __user *_type,
872 const char __user *_description,
873 const void __user *_payload,
874 size_t plen,
875 key_serial_t destringid);
876asmlinkage long sys_request_key(const char __user *_type,
877 const char __user *_description,
878 const char __user *_callout_info,
879 key_serial_t destringid);
880asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
881 unsigned long arg4, unsigned long arg5);
882
883/* arch/example/kernel/sys_example.c */
884#ifdef CONFIG_CLONE_BACKWARDS
885asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
886 int __user *);
887#else
888#ifdef CONFIG_CLONE_BACKWARDS3
889asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
890 int __user *, unsigned long);
891#else
892asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
893 int __user *, unsigned long);
894#endif
895#endif
896
897asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size);
898
899asmlinkage long sys_execve(const char __user *filename,
900 const char __user *const __user *argv,
901 const char __user *const __user *envp);
902
903/* mm/fadvise.c */
904asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
905
906/* mm/, CONFIG_MMU only */
907asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
908asmlinkage long sys_swapoff(const char __user *specialfile);
909asmlinkage long sys_mprotect(unsigned long start, size_t len,
910 unsigned long prot);
911asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
912asmlinkage long sys_mlock(unsigned long start, size_t len);
913asmlinkage long sys_munlock(unsigned long start, size_t len);
914asmlinkage long sys_mlockall(int flags);
915asmlinkage long sys_munlockall(void);
916asmlinkage long sys_mincore(unsigned long start, size_t len,
917 unsigned char __user * vec);
918asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
919asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
920 size_t vlen, int behavior, unsigned int flags);
921asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags);
922asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
923 unsigned long prot, unsigned long pgoff,
924 unsigned long flags);
925asmlinkage long sys_mbind(unsigned long start, unsigned long len,
926 unsigned long mode,
927 const unsigned long __user *nmask,
928 unsigned long maxnode,
929 unsigned flags);
930asmlinkage long sys_get_mempolicy(int __user *policy,
931 unsigned long __user *nmask,
932 unsigned long maxnode,
933 unsigned long addr, unsigned long flags);
934asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
935 unsigned long maxnode);
936asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
937 const unsigned long __user *from,
938 const unsigned long __user *to);
939asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
940 const void __user * __user *pages,
941 const int __user *nodes,
942 int __user *status,
943 int flags);
944
945asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
946 siginfo_t __user *uinfo);
947asmlinkage long sys_perf_event_open(
948 struct perf_event_attr __user *attr_uptr,
949 pid_t pid, int cpu, int group_fd, unsigned long flags);
950asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
951asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
952 unsigned int vlen, unsigned flags,
953 struct __kernel_timespec __user *timeout);
954asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
955 unsigned int vlen, unsigned flags,
956 struct old_timespec32 __user *timeout);
957
958asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
959 int options, struct rusage __user *ru);
960asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
961 const struct rlimit64 __user *new_rlim,
962 struct rlimit64 __user *old_rlim);
963asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
964asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
965 u64 mask, int fd,
966 const char __user *pathname);
967asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
968 struct file_handle __user *handle,
969 int __user *mnt_id, int flag);
970asmlinkage long sys_open_by_handle_at(int mountdirfd,
971 struct file_handle __user *handle,
972 int flags);
973asmlinkage long sys_clock_adjtime(clockid_t which_clock,
974 struct __kernel_timex __user *tx);
975asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
976 struct old_timex32 __user *tx);
977asmlinkage long sys_syncfs(int fd);
978asmlinkage long sys_setns(int fd, int nstype);
979asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
980asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
981 unsigned int vlen, unsigned flags);
982asmlinkage long sys_process_vm_readv(pid_t pid,
983 const struct iovec __user *lvec,
984 unsigned long liovcnt,
985 const struct iovec __user *rvec,
986 unsigned long riovcnt,
987 unsigned long flags);
988asmlinkage long sys_process_vm_writev(pid_t pid,
989 const struct iovec __user *lvec,
990 unsigned long liovcnt,
991 const struct iovec __user *rvec,
992 unsigned long riovcnt,
993 unsigned long flags);
994asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
995 unsigned long idx1, unsigned long idx2);
996asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
997asmlinkage long sys_sched_setattr(pid_t pid,
998 struct sched_attr __user *attr,
999 unsigned int flags);
1000asmlinkage long sys_sched_getattr(pid_t pid,
1001 struct sched_attr __user *attr,
1002 unsigned int size,
1003 unsigned int flags);
1004asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
1005 int newdfd, const char __user *newname,
1006 unsigned int flags);
1007asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
1008 void __user *uargs);
1009asmlinkage long sys_getrandom(char __user *buf, size_t count,
1010 unsigned int flags);
1011asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
1012asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
1013asmlinkage long sys_execveat(int dfd, const char __user *filename,
1014 const char __user *const __user *argv,
1015 const char __user *const __user *envp, int flags);
1016asmlinkage long sys_userfaultfd(int flags);
1017asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id);
1018asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
1019asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
1020 int fd_out, loff_t __user *off_out,
1021 size_t len, unsigned int flags);
1022asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
1023 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
1024 rwf_t flags);
1025asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
1026 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
1027 rwf_t flags);
1028asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
1029 unsigned long prot, int pkey);
1030asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
1031asmlinkage long sys_pkey_free(int pkey);
1032asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
1033 unsigned mask, struct statx __user *buffer);
1034asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
1035 int flags, uint32_t sig);
1036asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
1037asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
1038 int to_dfd, const char __user *to_path,
1039 unsigned int ms_flags);
1040asmlinkage long sys_mount_setattr(int dfd, const char __user *path,
1041 unsigned int flags,
1042 struct mount_attr __user *uattr, size_t usize);
1043asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
1044asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
1045 const void __user *value, int aux);
1046asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
1047asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
1048asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
1049 siginfo_t __user *info,
1050 unsigned int flags);
1051asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
1052asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr,
1053 size_t size, __u32 flags);
1054asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type,
1055 const void __user *rule_attr, __u32 flags);
1056asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags);
1057asmlinkage long sys_memfd_secret(unsigned int flags);
1058asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len,
1059 unsigned long home_node,
1060 unsigned long flags);
1061
1062/*
1063 * Architecture-specific system calls
1064 */
1065
1066/* arch/x86/kernel/ioport.c */
1067asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
1068
1069/* pciconfig: alpha, arm, arm64, ia64, sparc */
1070asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
1071 unsigned long off, unsigned long len,
1072 void __user *buf);
1073asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
1074 unsigned long off, unsigned long len,
1075 void __user *buf);
1076asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
1077
1078/* powerpc */
1079asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
1080 __u32 __user *ustatus);
1081asmlinkage long sys_spu_create(const char __user *name,
1082 unsigned int flags, umode_t mode, int fd);
1083
1084
1085/*
1086 * Deprecated system calls which are still defined in
1087 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
1088 */
1089
1090/* __ARCH_WANT_SYSCALL_NO_AT */
1091asmlinkage long sys_open(const char __user *filename,
1092 int flags, umode_t mode);
1093asmlinkage long sys_link(const char __user *oldname,
1094 const char __user *newname);
1095asmlinkage long sys_unlink(const char __user *pathname);
1096asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
1097 unsigned dev);
1098asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
1099asmlinkage long sys_chown(const char __user *filename,
1100 uid_t user, gid_t group);
1101asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
1102asmlinkage long sys_rmdir(const char __user *pathname);
1103asmlinkage long sys_lchown(const char __user *filename,
1104 uid_t user, gid_t group);
1105asmlinkage long sys_access(const char __user *filename, int mode);
1106asmlinkage long sys_rename(const char __user *oldname,
1107 const char __user *newname);
1108asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1109#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1110asmlinkage long sys_stat64(const char __user *filename,
1111 struct stat64 __user *statbuf);
1112asmlinkage long sys_lstat64(const char __user *filename,
1113 struct stat64 __user *statbuf);
1114#endif
1115
1116/* __ARCH_WANT_SYSCALL_NO_FLAGS */
1117asmlinkage long sys_pipe(int __user *fildes);
1118asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1119asmlinkage long sys_epoll_create(int size);
1120asmlinkage long sys_inotify_init(void);
1121asmlinkage long sys_eventfd(unsigned int count);
1122asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1123
1124/* __ARCH_WANT_SYSCALL_OFF_T */
1125asmlinkage long sys_sendfile(int out_fd, int in_fd,
1126 off_t __user *offset, size_t count);
1127asmlinkage long sys_newstat(const char __user *filename,
1128 struct stat __user *statbuf);
1129asmlinkage long sys_newlstat(const char __user *filename,
1130 struct stat __user *statbuf);
1131asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1132
1133/* __ARCH_WANT_SYSCALL_DEPRECATED */
1134asmlinkage long sys_alarm(unsigned int seconds);
1135asmlinkage long sys_getpgrp(void);
1136asmlinkage long sys_pause(void);
1137asmlinkage long sys_time(__kernel_old_time_t __user *tloc);
1138asmlinkage long sys_time32(old_time32_t __user *tloc);
1139#ifdef __ARCH_WANT_SYS_UTIME
1140asmlinkage long sys_utime(char __user *filename,
1141 struct utimbuf __user *times);
1142asmlinkage long sys_utimes(char __user *filename,
1143 struct __kernel_old_timeval __user *utimes);
1144asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1145 struct __kernel_old_timeval __user *utimes);
1146#endif
1147asmlinkage long sys_futimesat_time32(unsigned int dfd,
1148 const char __user *filename,
1149 struct old_timeval32 __user *t);
1150asmlinkage long sys_utime32(const char __user *filename,
1151 struct old_utimbuf32 __user *t);
1152asmlinkage long sys_utimes_time32(const char __user *filename,
1153 struct old_timeval32 __user *t);
1154asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1155asmlinkage long sys_getdents(unsigned int fd,
1156 struct linux_dirent __user *dirent,
1157 unsigned int count);
1158asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1159 fd_set __user *exp, struct __kernel_old_timeval __user *tvp);
1160asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1161 int timeout);
1162asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1163 int maxevents, int timeout);
1164asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1165asmlinkage long sys_vfork(void);
1166asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1167asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1168asmlinkage long sys_oldumount(char __user *name);
1169asmlinkage long sys_uselib(const char __user *library);
1170asmlinkage long sys_sysfs(int option,
1171 unsigned long arg1, unsigned long arg2);
1172asmlinkage long sys_fork(void);
1173
1174/* obsolete: kernel/time/time.c */
1175asmlinkage long sys_stime(__kernel_old_time_t __user *tptr);
1176asmlinkage long sys_stime32(old_time32_t __user *tptr);
1177
1178/* obsolete: kernel/signal.c */
1179asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1180asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1181 old_sigset_t __user *oset);
1182#ifdef CONFIG_OLD_SIGSUSPEND
1183asmlinkage long sys_sigsuspend(old_sigset_t mask);
1184#endif
1185
1186#ifdef CONFIG_OLD_SIGSUSPEND3
1187asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1188#endif
1189
1190#ifdef CONFIG_OLD_SIGACTION
1191asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1192 struct old_sigaction __user *);
1193#endif
1194asmlinkage long sys_sgetmask(void);
1195asmlinkage long sys_ssetmask(int newmask);
1196asmlinkage long sys_signal(int sig, __sighandler_t handler);
1197
1198/* obsolete: kernel/sched/core.c */
1199asmlinkage long sys_nice(int increment);
1200
1201/* obsolete: kernel/kexec_file.c */
1202asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1203 unsigned long cmdline_len,
1204 const char __user *cmdline_ptr,
1205 unsigned long flags);
1206
1207/* obsolete: kernel/exit.c */
1208asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1209
1210/* obsolete: kernel/uid16.c */
1211#ifdef CONFIG_HAVE_UID16
1212asmlinkage long sys_chown16(const char __user *filename,
1213 old_uid_t user, old_gid_t group);
1214asmlinkage long sys_lchown16(const char __user *filename,
1215 old_uid_t user, old_gid_t group);
1216asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1217asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1218asmlinkage long sys_setgid16(old_gid_t gid);
1219asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1220asmlinkage long sys_setuid16(old_uid_t uid);
1221asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1222asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1223 old_uid_t __user *euid, old_uid_t __user *suid);
1224asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1225asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1226 old_gid_t __user *egid, old_gid_t __user *sgid);
1227asmlinkage long sys_setfsuid16(old_uid_t uid);
1228asmlinkage long sys_setfsgid16(old_gid_t gid);
1229asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1230asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1231asmlinkage long sys_getuid16(void);
1232asmlinkage long sys_geteuid16(void);
1233asmlinkage long sys_getgid16(void);
1234asmlinkage long sys_getegid16(void);
1235#endif
1236
1237/* obsolete: net/socket.c */
1238asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1239
1240/* obsolete: fs/stat.c */
1241asmlinkage long sys_stat(const char __user *filename,
1242 struct __old_kernel_stat __user *statbuf);
1243asmlinkage long sys_lstat(const char __user *filename,
1244 struct __old_kernel_stat __user *statbuf);
1245asmlinkage long sys_fstat(unsigned int fd,
1246 struct __old_kernel_stat __user *statbuf);
1247asmlinkage long sys_readlink(const char __user *path,
1248 char __user *buf, int bufsiz);
1249
1250/* obsolete: fs/select.c */
1251asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1252
1253/* obsolete: fs/readdir.c */
1254asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1255
1256/* obsolete: kernel/sys.c */
1257asmlinkage long sys_gethostname(char __user *name, int len);
1258asmlinkage long sys_uname(struct old_utsname __user *);
1259asmlinkage long sys_olduname(struct oldold_utsname __user *);
1260#ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1261asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1262#endif
1263
1264/* obsolete: ipc */
1265asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1266 unsigned long third, void __user *ptr, long fifth);
1267
1268/* obsolete: mm/ */
1269asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1270 unsigned long prot, unsigned long flags,
1271 unsigned long fd, unsigned long pgoff);
1272asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1273
1274
1275/*
1276 * Not a real system call, but a placeholder for syscalls which are
1277 * not implemented -- see kernel/sys_ni.c
1278 */
1279asmlinkage long sys_ni_syscall(void);
1280
1281#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1282
1283
1284/*
1285 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1286 * Instead, use one of the functions which work equivalently, such as
1287 * the ksys_xyzyyz() functions prototyped below.
1288 */
1289ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1290int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1291ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1292void ksys_sync(void);
1293int ksys_unshare(unsigned long unshare_flags);
1294int ksys_setsid(void);
1295int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1296 unsigned int flags);
1297ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1298 loff_t pos);
1299ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1300 size_t count, loff_t pos);
1301int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1302#ifdef CONFIG_ADVISE_SYSCALLS
1303int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1304#else
1305static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1306 int advice)
1307{
1308 return -EINVAL;
1309}
1310#endif
1311unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1312 unsigned long prot, unsigned long flags,
1313 unsigned long fd, unsigned long pgoff);
1314ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1315int ksys_ipc(unsigned int call, int first, unsigned long second,
1316 unsigned long third, void __user * ptr, long fifth);
1317int compat_ksys_ipc(u32 call, int first, int second,
1318 u32 third, u32 ptr, u32 fifth);
1319
1320/*
1321 * The following kernel syscall equivalents are just wrappers to fs-internal
1322 * functions. Therefore, provide stubs to be inlined at the callsites.
1323 */
1324extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1325 gid_t group, int flag);
1326
1327static inline long ksys_chown(const char __user *filename, uid_t user,
1328 gid_t group)
1329{
1330 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1331}
1332
1333static inline long ksys_lchown(const char __user *filename, uid_t user,
1334 gid_t group)
1335{
1336 return do_fchownat(AT_FDCWD, filename, user, group,
1337 AT_SYMLINK_NOFOLLOW);
1338}
1339
1340extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1341
1342static inline long ksys_ftruncate(unsigned int fd, loff_t length)
1343{
1344 return do_sys_ftruncate(fd, length, 1);
1345}
1346
1347extern long do_sys_truncate(const char __user *pathname, loff_t length);
1348
1349static inline long ksys_truncate(const char __user *pathname, loff_t length)
1350{
1351 return do_sys_truncate(pathname, length);
1352}
1353
1354static inline unsigned int ksys_personality(unsigned int personality)
1355{
1356 unsigned int old = current->personality;
1357
1358 if (personality != 0xffffffff)
1359 set_personality(personality);
1360
1361 return old;
1362}
1363
1364/* for __ARCH_WANT_SYS_IPC */
1365long ksys_semtimedop(int semid, struct sembuf __user *tsops,
1366 unsigned int nsops,
1367 const struct __kernel_timespec __user *timeout);
1368long ksys_semget(key_t key, int nsems, int semflg);
1369long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
1370long ksys_msgget(key_t key, int msgflg);
1371long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
1372long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1373 long msgtyp, int msgflg);
1374long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1375 int msgflg);
1376long ksys_shmget(key_t key, size_t size, int shmflg);
1377long ksys_shmdt(char __user *shmaddr);
1378long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
1379long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
1380 unsigned int nsops,
1381 const struct old_timespec32 __user *timeout);
1382long __do_semtimedop(int semid, struct sembuf *tsems, unsigned int nsops,
1383 const struct timespec64 *timeout,
1384 struct ipc_namespace *ns);
1385
1386int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
1387 int __user *optlen);
1388int __sys_setsockopt(int fd, int level, int optname, char __user *optval,
1389 int optlen);
1390#endif