Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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;
74struct lsm_ctx;
75enum landlock_rule_type;
76struct cachestat_range;
77struct cachestat;
78struct statmount;
79struct mnt_id_req;
80
81#include <linux/types.h>
82#include <linux/aio_abi.h>
83#include <linux/capability.h>
84#include <linux/signal.h>
85#include <linux/list.h>
86#include <linux/bug.h>
87#include <linux/sem.h>
88#include <asm/siginfo.h>
89#include <linux/unistd.h>
90#include <linux/quota.h>
91#include <linux/key.h>
92#include <linux/personality.h>
93#include <trace/syscall.h>
94
95#ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
96/*
97 * It may be useful for an architecture to override the definitions of the
98 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
99 * different calling convention for syscalls. To allow for that, the prototypes
100 * for the sys_*() functions below will *not* be included if
101 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
102 */
103#include <asm/syscall_wrapper.h>
104#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
105
106/*
107 * __MAP - apply a macro to syscall arguments
108 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
109 * m(t1, a1), m(t2, a2), ..., m(tn, an)
110 * The first argument must be equal to the amount of type/name
111 * pairs given. Note that this list of pairs (i.e. the arguments
112 * of __MAP starting at the third one) is in the same format as
113 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
114 */
115#define __MAP0(m,...)
116#define __MAP1(m,t,a,...) m(t,a)
117#define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
118#define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
119#define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
120#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
121#define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
122#define __MAP(n,...) __MAP##n(__VA_ARGS__)
123
124#define __SC_DECL(t, a) t a
125#define __TYPE_AS(t, v) __same_type((__force t)0, v)
126#define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
127#define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
128#define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
129#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
130#define __SC_CAST(t, a) (__force t) a
131#define __SC_TYPE(t, a) t
132#define __SC_ARGS(t, a) a
133#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
134
135#ifdef CONFIG_FTRACE_SYSCALLS
136#define __SC_STR_ADECL(t, a) #a
137#define __SC_STR_TDECL(t, a) #t
138
139extern struct trace_event_class event_class_syscall_enter;
140extern struct trace_event_class event_class_syscall_exit;
141extern struct trace_event_functions enter_syscall_print_funcs;
142extern struct trace_event_functions exit_syscall_print_funcs;
143
144#define SYSCALL_TRACE_ENTER_EVENT(sname) \
145 static struct syscall_metadata __syscall_meta_##sname; \
146 static struct trace_event_call __used \
147 event_enter_##sname = { \
148 .class = &event_class_syscall_enter, \
149 { \
150 .name = "sys_enter"#sname, \
151 }, \
152 .event.funcs = &enter_syscall_print_funcs, \
153 .data = (void *)&__syscall_meta_##sname,\
154 .flags = TRACE_EVENT_FL_CAP_ANY, \
155 }; \
156 static struct trace_event_call __used \
157 __section("_ftrace_events") \
158 *__event_enter_##sname = &event_enter_##sname;
159
160#define SYSCALL_TRACE_EXIT_EVENT(sname) \
161 static struct syscall_metadata __syscall_meta_##sname; \
162 static struct trace_event_call __used \
163 event_exit_##sname = { \
164 .class = &event_class_syscall_exit, \
165 { \
166 .name = "sys_exit"#sname, \
167 }, \
168 .event.funcs = &exit_syscall_print_funcs, \
169 .data = (void *)&__syscall_meta_##sname,\
170 .flags = TRACE_EVENT_FL_CAP_ANY, \
171 }; \
172 static struct trace_event_call __used \
173 __section("_ftrace_events") \
174 *__event_exit_##sname = &event_exit_##sname;
175
176#define SYSCALL_METADATA(sname, nb, ...) \
177 static const char *types_##sname[] = { \
178 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
179 }; \
180 static const char *args_##sname[] = { \
181 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
182 }; \
183 SYSCALL_TRACE_ENTER_EVENT(sname); \
184 SYSCALL_TRACE_EXIT_EVENT(sname); \
185 static struct syscall_metadata __used \
186 __syscall_meta_##sname = { \
187 .name = "sys"#sname, \
188 .syscall_nr = -1, /* Filled in at boot */ \
189 .nb_args = nb, \
190 .types = nb ? types_##sname : NULL, \
191 .args = nb ? args_##sname : NULL, \
192 .enter_event = &event_enter_##sname, \
193 .exit_event = &event_exit_##sname, \
194 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
195 }; \
196 static struct syscall_metadata __used \
197 __section("__syscalls_metadata") \
198 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
199
200static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
201{
202 return tp_event->class == &event_class_syscall_enter ||
203 tp_event->class == &event_class_syscall_exit;
204}
205
206#else
207#define SYSCALL_METADATA(sname, nb, ...)
208
209static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
210{
211 return 0;
212}
213#endif
214
215#ifndef SYSCALL_DEFINE0
216#define SYSCALL_DEFINE0(sname) \
217 SYSCALL_METADATA(_##sname, 0); \
218 asmlinkage long sys_##sname(void); \
219 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
220 asmlinkage long sys_##sname(void)
221#endif /* SYSCALL_DEFINE0 */
222
223#define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
224#define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
225#define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
226#define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
227#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
228#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
229
230#define SYSCALL_DEFINE_MAXARGS 6
231
232#define SYSCALL_DEFINEx(x, sname, ...) \
233 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
234 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
235
236#define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
237
238/*
239 * The asmlinkage stub is aliased to a function named __se_sys_*() which
240 * sign-extends 32-bit ints to longs whenever needed. The actual work is
241 * done within __do_sys_*().
242 */
243#ifndef __SYSCALL_DEFINEx
244#define __SYSCALL_DEFINEx(x, name, ...) \
245 __diag_push(); \
246 __diag_ignore(GCC, 8, "-Wattribute-alias", \
247 "Type aliasing is used to sanitize syscall arguments");\
248 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
249 __attribute__((alias(__stringify(__se_sys##name)))); \
250 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
251 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
252 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
253 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
254 { \
255 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
256 __MAP(x,__SC_TEST,__VA_ARGS__); \
257 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
258 return ret; \
259 } \
260 __diag_pop(); \
261 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
262#endif /* __SYSCALL_DEFINEx */
263
264/* For split 64-bit arguments on 32-bit architectures */
265#ifdef __LITTLE_ENDIAN
266#define SC_ARG64(name) u32, name##_lo, u32, name##_hi
267#else
268#define SC_ARG64(name) u32, name##_hi, u32, name##_lo
269#endif
270#define SC_VAL64(type, name) ((type) name##_hi << 32 | name##_lo)
271
272#ifdef CONFIG_COMPAT
273#define SYSCALL32_DEFINE0 COMPAT_SYSCALL_DEFINE0
274#define SYSCALL32_DEFINE1 COMPAT_SYSCALL_DEFINE1
275#define SYSCALL32_DEFINE2 COMPAT_SYSCALL_DEFINE2
276#define SYSCALL32_DEFINE3 COMPAT_SYSCALL_DEFINE3
277#define SYSCALL32_DEFINE4 COMPAT_SYSCALL_DEFINE4
278#define SYSCALL32_DEFINE5 COMPAT_SYSCALL_DEFINE5
279#define SYSCALL32_DEFINE6 COMPAT_SYSCALL_DEFINE6
280#else
281#define SYSCALL32_DEFINE0 SYSCALL_DEFINE0
282#define SYSCALL32_DEFINE1 SYSCALL_DEFINE1
283#define SYSCALL32_DEFINE2 SYSCALL_DEFINE2
284#define SYSCALL32_DEFINE3 SYSCALL_DEFINE3
285#define SYSCALL32_DEFINE4 SYSCALL_DEFINE4
286#define SYSCALL32_DEFINE5 SYSCALL_DEFINE5
287#define SYSCALL32_DEFINE6 SYSCALL_DEFINE6
288#endif
289
290/*
291 * These syscall function prototypes are kept in the same order as
292 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
293 * followed by deprecated or obsolete system calls.
294 *
295 * Please note that these prototypes here are only provided for information
296 * purposes, for static analysis, and for linking from the syscall table.
297 * These functions should not be called elsewhere from kernel code.
298 *
299 * As the syscall calling convention may be different from the default
300 * for architectures overriding the syscall calling convention, do not
301 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
302 */
303#ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
304asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
305asmlinkage long sys_io_destroy(aio_context_t ctx);
306asmlinkage long sys_io_submit(aio_context_t, long,
307 struct iocb __user * __user *);
308asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
309 struct io_event __user *result);
310asmlinkage long sys_io_getevents(aio_context_t ctx_id,
311 long min_nr,
312 long nr,
313 struct io_event __user *events,
314 struct __kernel_timespec __user *timeout);
315asmlinkage long sys_io_getevents_time32(__u32 ctx_id,
316 __s32 min_nr,
317 __s32 nr,
318 struct io_event __user *events,
319 struct old_timespec32 __user *timeout);
320asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
321 long min_nr,
322 long nr,
323 struct io_event __user *events,
324 struct __kernel_timespec __user *timeout,
325 const struct __aio_sigset __user *sig);
326asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
327 long min_nr,
328 long nr,
329 struct io_event __user *events,
330 struct old_timespec32 __user *timeout,
331 const struct __aio_sigset __user *sig);
332asmlinkage long sys_io_uring_setup(u32 entries,
333 struct io_uring_params __user *p);
334asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
335 u32 min_complete, u32 flags,
336 const void __user *argp, size_t argsz);
337asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
338 void __user *arg, unsigned int nr_args);
339asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
340 const void __user *value, size_t size, int flags);
341asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
342 const void __user *value, size_t size, int flags);
343asmlinkage long sys_fsetxattr(int fd, const char __user *name,
344 const void __user *value, size_t size, int flags);
345asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
346 void __user *value, size_t size);
347asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
348 void __user *value, size_t size);
349asmlinkage long sys_fgetxattr(int fd, const char __user *name,
350 void __user *value, size_t size);
351asmlinkage long sys_listxattr(const char __user *path, char __user *list,
352 size_t size);
353asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
354 size_t size);
355asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
356asmlinkage long sys_removexattr(const char __user *path,
357 const char __user *name);
358asmlinkage long sys_lremovexattr(const char __user *path,
359 const char __user *name);
360asmlinkage long sys_fremovexattr(int fd, const char __user *name);
361asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
362asmlinkage long sys_eventfd2(unsigned int count, int flags);
363asmlinkage long sys_epoll_create1(int flags);
364asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
365 struct epoll_event __user *event);
366asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
367 int maxevents, int timeout,
368 const sigset_t __user *sigmask,
369 size_t sigsetsize);
370asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events,
371 int maxevents,
372 const struct __kernel_timespec __user *timeout,
373 const sigset_t __user *sigmask,
374 size_t sigsetsize);
375asmlinkage long sys_dup(unsigned int fildes);
376asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
377asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
378#if BITS_PER_LONG == 32
379asmlinkage long sys_fcntl64(unsigned int fd,
380 unsigned int cmd, unsigned long arg);
381#endif
382asmlinkage long sys_inotify_init1(int flags);
383asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
384 u32 mask);
385asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
386asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
387 unsigned long arg);
388asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
389asmlinkage long sys_ioprio_get(int which, int who);
390asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
391asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
392 unsigned dev);
393asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
394asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
395asmlinkage long sys_symlinkat(const char __user * oldname,
396 int newdfd, const char __user * newname);
397asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
398 int newdfd, const char __user *newname, int flags);
399asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
400 int newdfd, const char __user * newname);
401asmlinkage long sys_umount(char __user *name, int flags);
402asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
403 char __user *type, unsigned long flags,
404 void __user *data);
405asmlinkage long sys_pivot_root(const char __user *new_root,
406 const char __user *put_old);
407asmlinkage long sys_statfs(const char __user * path,
408 struct statfs __user *buf);
409asmlinkage long sys_statfs64(const char __user *path, size_t sz,
410 struct statfs64 __user *buf);
411asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
412asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
413 struct statfs64 __user *buf);
414asmlinkage long sys_statmount(const struct mnt_id_req __user *req,
415 struct statmount __user *buf, size_t bufsize,
416 unsigned int flags);
417asmlinkage long sys_listmount(const struct mnt_id_req __user *req,
418 u64 __user *mnt_ids, size_t nr_mnt_ids,
419 unsigned int flags);
420asmlinkage long sys_truncate(const char __user *path, long length);
421asmlinkage long sys_ftruncate(unsigned int fd, off_t length);
422#if BITS_PER_LONG == 32
423asmlinkage long sys_truncate64(const char __user *path, loff_t length);
424asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
425#endif
426asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
427asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
428asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode,
429 int flags);
430asmlinkage long sys_chdir(const char __user *filename);
431asmlinkage long sys_fchdir(unsigned int fd);
432asmlinkage long sys_chroot(const char __user *filename);
433asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
434asmlinkage long sys_fchmodat(int dfd, const char __user *filename,
435 umode_t mode);
436asmlinkage long sys_fchmodat2(int dfd, const char __user *filename,
437 umode_t mode, unsigned int flags);
438asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
439 gid_t group, int flag);
440asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
441asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
442 umode_t mode);
443asmlinkage long sys_openat2(int dfd, const char __user *filename,
444 struct open_how __user *how, size_t size);
445asmlinkage long sys_close(unsigned int fd);
446asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd,
447 unsigned int flags);
448asmlinkage long sys_vhangup(void);
449asmlinkage long sys_pipe2(int __user *fildes, int flags);
450asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
451 qid_t id, void __user *addr);
452asmlinkage long sys_quotactl_fd(unsigned int fd, unsigned int cmd, qid_t id,
453 void __user *addr);
454asmlinkage long sys_getdents64(unsigned int fd,
455 struct linux_dirent64 __user *dirent,
456 unsigned int count);
457asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
458 unsigned long offset_low, loff_t __user *result,
459 unsigned int whence);
460asmlinkage long sys_lseek(unsigned int fd, off_t offset,
461 unsigned int whence);
462asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
463asmlinkage long sys_write(unsigned int fd, const char __user *buf,
464 size_t count);
465asmlinkage long sys_readv(unsigned long fd,
466 const struct iovec __user *vec,
467 unsigned long vlen);
468asmlinkage long sys_writev(unsigned long fd,
469 const struct iovec __user *vec,
470 unsigned long vlen);
471asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
472 size_t count, loff_t pos);
473asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
474 size_t count, loff_t pos);
475asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
476 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
477asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
478 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
479asmlinkage long sys_sendfile64(int out_fd, int in_fd,
480 loff_t __user *offset, size_t count);
481asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
482 fd_set __user *, struct __kernel_timespec __user *,
483 void __user *);
484asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
485 fd_set __user *, struct old_timespec32 __user *,
486 void __user *);
487asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
488 struct __kernel_timespec __user *, const sigset_t __user *,
489 size_t);
490asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
491 struct old_timespec32 __user *, const sigset_t __user *,
492 size_t);
493asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
494asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
495 unsigned long nr_segs, unsigned int flags);
496asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
497 int fd_out, loff_t __user *off_out,
498 size_t len, unsigned int flags);
499asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
500asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
501 int bufsiz);
502asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
503 struct stat __user *statbuf, int flag);
504asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
505#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
506asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
507asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
508 struct stat64 __user *statbuf, int flag);
509#endif
510asmlinkage long sys_sync(void);
511asmlinkage long sys_fsync(unsigned int fd);
512asmlinkage long sys_fdatasync(unsigned int fd);
513asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
514 loff_t offset, loff_t nbytes);
515asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
516 unsigned int flags);
517asmlinkage long sys_timerfd_create(int clockid, int flags);
518asmlinkage long sys_timerfd_settime(int ufd, int flags,
519 const struct __kernel_itimerspec __user *utmr,
520 struct __kernel_itimerspec __user *otmr);
521asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
522asmlinkage long sys_timerfd_gettime32(int ufd,
523 struct old_itimerspec32 __user *otmr);
524asmlinkage long sys_timerfd_settime32(int ufd, int flags,
525 const struct old_itimerspec32 __user *utmr,
526 struct old_itimerspec32 __user *otmr);
527asmlinkage long sys_utimensat(int dfd, const char __user *filename,
528 struct __kernel_timespec __user *utimes,
529 int flags);
530asmlinkage long sys_utimensat_time32(unsigned int dfd,
531 const char __user *filename,
532 struct old_timespec32 __user *t, int flags);
533asmlinkage long sys_acct(const char __user *name);
534asmlinkage long sys_capget(cap_user_header_t header,
535 cap_user_data_t dataptr);
536asmlinkage long sys_capset(cap_user_header_t header,
537 const cap_user_data_t data);
538asmlinkage long sys_personality(unsigned int personality);
539asmlinkage long sys_exit(int error_code);
540asmlinkage long sys_exit_group(int error_code);
541asmlinkage long sys_waitid(int which, pid_t pid,
542 struct siginfo __user *infop,
543 int options, struct rusage __user *ru);
544asmlinkage long sys_set_tid_address(int __user *tidptr);
545asmlinkage long sys_unshare(unsigned long unshare_flags);
546asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
547 const struct __kernel_timespec __user *utime,
548 u32 __user *uaddr2, u32 val3);
549asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
550 const struct old_timespec32 __user *utime,
551 u32 __user *uaddr2, u32 val3);
552asmlinkage long sys_get_robust_list(int pid,
553 struct robust_list_head __user * __user *head_ptr,
554 size_t __user *len_ptr);
555asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
556 size_t len);
557
558asmlinkage long sys_futex_waitv(struct futex_waitv __user *waiters,
559 unsigned int nr_futexes, unsigned int flags,
560 struct __kernel_timespec __user *timeout, clockid_t clockid);
561
562asmlinkage long sys_futex_wake(void __user *uaddr, unsigned long mask, int nr, unsigned int flags);
563
564asmlinkage long sys_futex_wait(void __user *uaddr, unsigned long val, unsigned long mask,
565 unsigned int flags, struct __kernel_timespec __user *timespec,
566 clockid_t clockid);
567
568asmlinkage long sys_futex_requeue(struct futex_waitv __user *waiters,
569 unsigned int flags, int nr_wake, int nr_requeue);
570
571asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
572 struct __kernel_timespec __user *rmtp);
573asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
574 struct old_timespec32 __user *rmtp);
575asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value);
576asmlinkage long sys_setitimer(int which,
577 struct __kernel_old_itimerval __user *value,
578 struct __kernel_old_itimerval __user *ovalue);
579asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
580 struct kexec_segment __user *segments,
581 unsigned long flags);
582asmlinkage long sys_init_module(void __user *umod, unsigned long len,
583 const char __user *uargs);
584asmlinkage long sys_delete_module(const char __user *name_user,
585 unsigned int flags);
586asmlinkage long sys_timer_create(clockid_t which_clock,
587 struct sigevent __user *timer_event_spec,
588 timer_t __user * created_timer_id);
589asmlinkage long sys_timer_gettime(timer_t timer_id,
590 struct __kernel_itimerspec __user *setting);
591asmlinkage long sys_timer_getoverrun(timer_t timer_id);
592asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
593 const struct __kernel_itimerspec __user *new_setting,
594 struct __kernel_itimerspec __user *old_setting);
595asmlinkage long sys_timer_delete(timer_t timer_id);
596asmlinkage long sys_clock_settime(clockid_t which_clock,
597 const struct __kernel_timespec __user *tp);
598asmlinkage long sys_clock_gettime(clockid_t which_clock,
599 struct __kernel_timespec __user *tp);
600asmlinkage long sys_clock_getres(clockid_t which_clock,
601 struct __kernel_timespec __user *tp);
602asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
603 const struct __kernel_timespec __user *rqtp,
604 struct __kernel_timespec __user *rmtp);
605asmlinkage long sys_timer_gettime32(timer_t timer_id,
606 struct old_itimerspec32 __user *setting);
607asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
608 struct old_itimerspec32 __user *new,
609 struct old_itimerspec32 __user *old);
610asmlinkage long sys_clock_settime32(clockid_t which_clock,
611 struct old_timespec32 __user *tp);
612asmlinkage long sys_clock_gettime32(clockid_t which_clock,
613 struct old_timespec32 __user *tp);
614asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
615 struct old_timespec32 __user *tp);
616asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
617 struct old_timespec32 __user *rqtp,
618 struct old_timespec32 __user *rmtp);
619asmlinkage long sys_syslog(int type, char __user *buf, int len);
620asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
621 unsigned long data);
622asmlinkage long sys_sched_setparam(pid_t pid,
623 struct sched_param __user *param);
624asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
625 struct sched_param __user *param);
626asmlinkage long sys_sched_getscheduler(pid_t pid);
627asmlinkage long sys_sched_getparam(pid_t pid,
628 struct sched_param __user *param);
629asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
630 unsigned long __user *user_mask_ptr);
631asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
632 unsigned long __user *user_mask_ptr);
633asmlinkage long sys_sched_yield(void);
634asmlinkage long sys_sched_get_priority_max(int policy);
635asmlinkage long sys_sched_get_priority_min(int policy);
636asmlinkage long sys_sched_rr_get_interval(pid_t pid,
637 struct __kernel_timespec __user *interval);
638asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
639 struct old_timespec32 __user *interval);
640asmlinkage long sys_restart_syscall(void);
641asmlinkage long sys_kill(pid_t pid, int sig);
642asmlinkage long sys_tkill(pid_t pid, int sig);
643asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
644asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
645 struct sigaltstack __user *uoss);
646asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
647#ifndef CONFIG_ODD_RT_SIGACTION
648asmlinkage long sys_rt_sigaction(int,
649 const struct sigaction __user *,
650 struct sigaction __user *,
651 size_t);
652#endif
653asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
654 sigset_t __user *oset, size_t sigsetsize);
655asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
656asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
657 siginfo_t __user *uinfo,
658 const struct __kernel_timespec __user *uts,
659 size_t sigsetsize);
660asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
661 siginfo_t __user *uinfo,
662 const struct old_timespec32 __user *uts,
663 size_t sigsetsize);
664asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
665asmlinkage long sys_setpriority(int which, int who, int niceval);
666asmlinkage long sys_getpriority(int which, int who);
667asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
668 void __user *arg);
669asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
670asmlinkage long sys_setgid(gid_t gid);
671asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
672asmlinkage long sys_setuid(uid_t uid);
673asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
674asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
675asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
676asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
677asmlinkage long sys_setfsuid(uid_t uid);
678asmlinkage long sys_setfsgid(gid_t gid);
679asmlinkage long sys_times(struct tms __user *tbuf);
680asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
681asmlinkage long sys_getpgid(pid_t pid);
682asmlinkage long sys_getsid(pid_t pid);
683asmlinkage long sys_setsid(void);
684asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
685asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
686asmlinkage long sys_newuname(struct new_utsname __user *name);
687asmlinkage long sys_sethostname(char __user *name, int len);
688asmlinkage long sys_setdomainname(char __user *name, int len);
689asmlinkage long sys_getrlimit(unsigned int resource,
690 struct rlimit __user *rlim);
691asmlinkage long sys_setrlimit(unsigned int resource,
692 struct rlimit __user *rlim);
693asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
694asmlinkage long sys_umask(int mask);
695asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
696 unsigned long arg4, unsigned long arg5);
697asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
698asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv,
699 struct timezone __user *tz);
700asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv,
701 struct timezone __user *tz);
702asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
703asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
704asmlinkage long sys_getpid(void);
705asmlinkage long sys_getppid(void);
706asmlinkage long sys_getuid(void);
707asmlinkage long sys_geteuid(void);
708asmlinkage long sys_getgid(void);
709asmlinkage long sys_getegid(void);
710asmlinkage long sys_gettid(void);
711asmlinkage long sys_sysinfo(struct sysinfo __user *info);
712asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
713asmlinkage long sys_mq_unlink(const char __user *name);
714asmlinkage 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);
715asmlinkage 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);
716asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
717asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
718asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
719 char __user *u_msg_ptr,
720 unsigned int msg_len, unsigned int __user *u_msg_prio,
721 const struct old_timespec32 __user *u_abs_timeout);
722asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
723 const char __user *u_msg_ptr,
724 unsigned int msg_len, unsigned int msg_prio,
725 const struct old_timespec32 __user *u_abs_timeout);
726asmlinkage long sys_msgget(key_t key, int msgflg);
727asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
728asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
729asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
730 size_t msgsz, long msgtyp, int msgflg);
731asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
732 size_t msgsz, int msgflg);
733asmlinkage long sys_semget(key_t key, int nsems, int semflg);
734asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
735asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
736asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
737 unsigned nsops,
738 const struct __kernel_timespec __user *timeout);
739asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
740 unsigned nsops,
741 const struct old_timespec32 __user *timeout);
742asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
743 unsigned nsops);
744asmlinkage long sys_shmget(key_t key, size_t size, int flag);
745asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
746asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
747asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
748asmlinkage long sys_shmdt(char __user *shmaddr);
749asmlinkage long sys_socket(int, int, int);
750asmlinkage long sys_socketpair(int, int, int, int __user *);
751asmlinkage long sys_bind(int, struct sockaddr __user *, int);
752asmlinkage long sys_listen(int, int);
753asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
754asmlinkage long sys_connect(int, struct sockaddr __user *, int);
755asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
756asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
757asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
758 struct sockaddr __user *, int);
759asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
760 struct sockaddr __user *, int __user *);
761asmlinkage long sys_setsockopt(int fd, int level, int optname,
762 char __user *optval, int optlen);
763asmlinkage long sys_getsockopt(int fd, int level, int optname,
764 char __user *optval, int __user *optlen);
765asmlinkage long sys_shutdown(int, int);
766asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
767asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
768asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
769asmlinkage long sys_brk(unsigned long brk);
770asmlinkage long sys_munmap(unsigned long addr, size_t len);
771asmlinkage long sys_mremap(unsigned long addr,
772 unsigned long old_len, unsigned long new_len,
773 unsigned long flags, unsigned long new_addr);
774asmlinkage long sys_add_key(const char __user *_type,
775 const char __user *_description,
776 const void __user *_payload,
777 size_t plen,
778 key_serial_t destringid);
779asmlinkage long sys_request_key(const char __user *_type,
780 const char __user *_description,
781 const char __user *_callout_info,
782 key_serial_t destringid);
783asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
784 unsigned long arg4, unsigned long arg5);
785#ifdef CONFIG_CLONE_BACKWARDS
786asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
787 int __user *);
788#else
789#ifdef CONFIG_CLONE_BACKWARDS3
790asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
791 int __user *, unsigned long);
792#else
793asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
794 int __user *, unsigned long);
795#endif
796#endif
797
798asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size);
799
800asmlinkage long sys_execve(const char __user *filename,
801 const char __user *const __user *argv,
802 const char __user *const __user *envp);
803asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
804
805/* CONFIG_MMU only */
806asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
807asmlinkage long sys_swapoff(const char __user *specialfile);
808asmlinkage long sys_mprotect(unsigned long start, size_t len,
809 unsigned long prot);
810asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
811asmlinkage long sys_mlock(unsigned long start, size_t len);
812asmlinkage long sys_munlock(unsigned long start, size_t len);
813asmlinkage long sys_mlockall(int flags);
814asmlinkage long sys_munlockall(void);
815asmlinkage long sys_mincore(unsigned long start, size_t len,
816 unsigned char __user * vec);
817asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
818asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
819 size_t vlen, int behavior, unsigned int flags);
820asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags);
821asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
822 unsigned long prot, unsigned long pgoff,
823 unsigned long flags);
824asmlinkage long sys_mseal(unsigned long start, size_t len, unsigned long flags);
825asmlinkage long sys_mbind(unsigned long start, unsigned long len,
826 unsigned long mode,
827 const unsigned long __user *nmask,
828 unsigned long maxnode,
829 unsigned flags);
830asmlinkage long sys_get_mempolicy(int __user *policy,
831 unsigned long __user *nmask,
832 unsigned long maxnode,
833 unsigned long addr, unsigned long flags);
834asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
835 unsigned long maxnode);
836asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
837 const unsigned long __user *from,
838 const unsigned long __user *to);
839asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
840 const void __user * __user *pages,
841 const int __user *nodes,
842 int __user *status,
843 int flags);
844asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
845 siginfo_t __user *uinfo);
846asmlinkage long sys_perf_event_open(
847 struct perf_event_attr __user *attr_uptr,
848 pid_t pid, int cpu, int group_fd, unsigned long flags);
849asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
850asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
851 unsigned int vlen, unsigned flags,
852 struct __kernel_timespec __user *timeout);
853asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
854 unsigned int vlen, unsigned flags,
855 struct old_timespec32 __user *timeout);
856asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
857 int options, struct rusage __user *ru);
858asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
859 const struct rlimit64 __user *new_rlim,
860 struct rlimit64 __user *old_rlim);
861asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
862#if defined(CONFIG_ARCH_SPLIT_ARG64)
863asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
864 unsigned int mask_1, unsigned int mask_2,
865 int dfd, const char __user * pathname);
866#else
867asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
868 u64 mask, int fd,
869 const char __user *pathname);
870#endif
871asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
872 struct file_handle __user *handle,
873 void __user *mnt_id, int flag);
874asmlinkage long sys_open_by_handle_at(int mountdirfd,
875 struct file_handle __user *handle,
876 int flags);
877asmlinkage long sys_clock_adjtime(clockid_t which_clock,
878 struct __kernel_timex __user *tx);
879asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
880 struct old_timex32 __user *tx);
881asmlinkage long sys_syncfs(int fd);
882asmlinkage long sys_setns(int fd, int nstype);
883asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
884asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
885 unsigned int vlen, unsigned flags);
886asmlinkage long sys_process_vm_readv(pid_t pid,
887 const struct iovec __user *lvec,
888 unsigned long liovcnt,
889 const struct iovec __user *rvec,
890 unsigned long riovcnt,
891 unsigned long flags);
892asmlinkage long sys_process_vm_writev(pid_t pid,
893 const struct iovec __user *lvec,
894 unsigned long liovcnt,
895 const struct iovec __user *rvec,
896 unsigned long riovcnt,
897 unsigned long flags);
898asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
899 unsigned long idx1, unsigned long idx2);
900asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
901asmlinkage long sys_sched_setattr(pid_t pid,
902 struct sched_attr __user *attr,
903 unsigned int flags);
904asmlinkage long sys_sched_getattr(pid_t pid,
905 struct sched_attr __user *attr,
906 unsigned int size,
907 unsigned int flags);
908asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
909 int newdfd, const char __user *newname,
910 unsigned int flags);
911asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
912 void __user *uargs);
913asmlinkage long sys_getrandom(char __user *buf, size_t count,
914 unsigned int flags);
915asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
916asmlinkage long sys_bpf(int cmd, union bpf_attr __user *attr, unsigned int size);
917asmlinkage long sys_execveat(int dfd, const char __user *filename,
918 const char __user *const __user *argv,
919 const char __user *const __user *envp, int flags);
920asmlinkage long sys_userfaultfd(int flags);
921asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id);
922asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
923asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
924 int fd_out, loff_t __user *off_out,
925 size_t len, unsigned int flags);
926asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
927 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
928 rwf_t flags);
929asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
930 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
931 rwf_t flags);
932asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
933 unsigned long prot, int pkey);
934asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
935asmlinkage long sys_pkey_free(int pkey);
936asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
937 unsigned mask, struct statx __user *buffer);
938asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
939 int flags, uint32_t sig);
940asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
941asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
942 int to_dfd, const char __user *to_path,
943 unsigned int ms_flags);
944asmlinkage long sys_mount_setattr(int dfd, const char __user *path,
945 unsigned int flags,
946 struct mount_attr __user *uattr, size_t usize);
947asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
948asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
949 const void __user *value, int aux);
950asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
951asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
952asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
953 siginfo_t __user *info,
954 unsigned int flags);
955asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
956asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr,
957 size_t size, __u32 flags);
958asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type,
959 const void __user *rule_attr, __u32 flags);
960asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags);
961asmlinkage long sys_memfd_secret(unsigned int flags);
962asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len,
963 unsigned long home_node,
964 unsigned long flags);
965asmlinkage long sys_cachestat(unsigned int fd,
966 struct cachestat_range __user *cstat_range,
967 struct cachestat __user *cstat, unsigned int flags);
968asmlinkage long sys_map_shadow_stack(unsigned long addr, unsigned long size, unsigned int flags);
969asmlinkage long sys_lsm_get_self_attr(unsigned int attr, struct lsm_ctx __user *ctx,
970 u32 __user *size, u32 flags);
971asmlinkage long sys_lsm_set_self_attr(unsigned int attr, struct lsm_ctx __user *ctx,
972 u32 size, u32 flags);
973asmlinkage long sys_lsm_list_modules(u64 __user *ids, u32 __user *size, u32 flags);
974
975/*
976 * Architecture-specific system calls
977 */
978
979/* x86 */
980asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
981
982asmlinkage long sys_uretprobe(void);
983
984/* pciconfig: alpha, arm, arm64, ia64, sparc */
985asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
986 unsigned long off, unsigned long len,
987 void __user *buf);
988asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
989 unsigned long off, unsigned long len,
990 void __user *buf);
991asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
992
993/* powerpc */
994asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
995 __u32 __user *ustatus);
996asmlinkage long sys_spu_create(const char __user *name,
997 unsigned int flags, umode_t mode, int fd);
998
999
1000/*
1001 * Deprecated system calls which are still defined in
1002 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
1003 */
1004
1005/* __ARCH_WANT_SYSCALL_NO_AT */
1006asmlinkage long sys_open(const char __user *filename,
1007 int flags, umode_t mode);
1008asmlinkage long sys_link(const char __user *oldname,
1009 const char __user *newname);
1010asmlinkage long sys_unlink(const char __user *pathname);
1011asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
1012 unsigned dev);
1013asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
1014asmlinkage long sys_chown(const char __user *filename,
1015 uid_t user, gid_t group);
1016asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
1017asmlinkage long sys_rmdir(const char __user *pathname);
1018asmlinkage long sys_lchown(const char __user *filename,
1019 uid_t user, gid_t group);
1020asmlinkage long sys_access(const char __user *filename, int mode);
1021asmlinkage long sys_rename(const char __user *oldname,
1022 const char __user *newname);
1023asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1024#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1025asmlinkage long sys_stat64(const char __user *filename,
1026 struct stat64 __user *statbuf);
1027asmlinkage long sys_lstat64(const char __user *filename,
1028 struct stat64 __user *statbuf);
1029#endif
1030
1031/* __ARCH_WANT_SYSCALL_NO_FLAGS */
1032asmlinkage long sys_pipe(int __user *fildes);
1033asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1034asmlinkage long sys_epoll_create(int size);
1035asmlinkage long sys_inotify_init(void);
1036asmlinkage long sys_eventfd(unsigned int count);
1037asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1038
1039/* __ARCH_WANT_SYSCALL_OFF_T */
1040asmlinkage long sys_sendfile(int out_fd, int in_fd,
1041 off_t __user *offset, size_t count);
1042asmlinkage long sys_newstat(const char __user *filename,
1043 struct stat __user *statbuf);
1044asmlinkage long sys_newlstat(const char __user *filename,
1045 struct stat __user *statbuf);
1046asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1047
1048/* __ARCH_WANT_SYSCALL_DEPRECATED */
1049asmlinkage long sys_alarm(unsigned int seconds);
1050asmlinkage long sys_getpgrp(void);
1051asmlinkage long sys_pause(void);
1052asmlinkage long sys_time(__kernel_old_time_t __user *tloc);
1053asmlinkage long sys_time32(old_time32_t __user *tloc);
1054#ifdef __ARCH_WANT_SYS_UTIME
1055asmlinkage long sys_utime(char __user *filename,
1056 struct utimbuf __user *times);
1057asmlinkage long sys_utimes(char __user *filename,
1058 struct __kernel_old_timeval __user *utimes);
1059asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1060 struct __kernel_old_timeval __user *utimes);
1061#endif
1062asmlinkage long sys_futimesat_time32(unsigned int dfd,
1063 const char __user *filename,
1064 struct old_timeval32 __user *t);
1065asmlinkage long sys_utime32(const char __user *filename,
1066 struct old_utimbuf32 __user *t);
1067asmlinkage long sys_utimes_time32(const char __user *filename,
1068 struct old_timeval32 __user *t);
1069asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1070asmlinkage long sys_getdents(unsigned int fd,
1071 struct linux_dirent __user *dirent,
1072 unsigned int count);
1073asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1074 fd_set __user *exp, struct __kernel_old_timeval __user *tvp);
1075asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1076 int timeout);
1077asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1078 int maxevents, int timeout);
1079asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1080asmlinkage long sys_vfork(void);
1081asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1082asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1083asmlinkage long sys_oldumount(char __user *name);
1084asmlinkage long sys_uselib(const char __user *library);
1085asmlinkage long sys_sysfs(int option,
1086 unsigned long arg1, unsigned long arg2);
1087asmlinkage long sys_fork(void);
1088
1089/* obsolete */
1090asmlinkage long sys_stime(__kernel_old_time_t __user *tptr);
1091asmlinkage long sys_stime32(old_time32_t __user *tptr);
1092
1093/* obsolete */
1094asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1095asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1096 old_sigset_t __user *oset);
1097#ifdef CONFIG_OLD_SIGSUSPEND
1098asmlinkage long sys_sigsuspend(old_sigset_t mask);
1099#endif
1100
1101#ifdef CONFIG_OLD_SIGSUSPEND3
1102asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1103#endif
1104
1105#ifdef CONFIG_OLD_SIGACTION
1106asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1107 struct old_sigaction __user *);
1108#endif
1109asmlinkage long sys_sgetmask(void);
1110asmlinkage long sys_ssetmask(int newmask);
1111asmlinkage long sys_signal(int sig, __sighandler_t handler);
1112
1113/* obsolete */
1114asmlinkage long sys_nice(int increment);
1115
1116/* obsolete */
1117asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1118 unsigned long cmdline_len,
1119 const char __user *cmdline_ptr,
1120 unsigned long flags);
1121
1122/* obsolete */
1123asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1124
1125/* obsolete */
1126#ifdef CONFIG_HAVE_UID16
1127asmlinkage long sys_chown16(const char __user *filename,
1128 old_uid_t user, old_gid_t group);
1129asmlinkage long sys_lchown16(const char __user *filename,
1130 old_uid_t user, old_gid_t group);
1131asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1132asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1133asmlinkage long sys_setgid16(old_gid_t gid);
1134asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1135asmlinkage long sys_setuid16(old_uid_t uid);
1136asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1137asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1138 old_uid_t __user *euid, old_uid_t __user *suid);
1139asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1140asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1141 old_gid_t __user *egid, old_gid_t __user *sgid);
1142asmlinkage long sys_setfsuid16(old_uid_t uid);
1143asmlinkage long sys_setfsgid16(old_gid_t gid);
1144asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1145asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1146asmlinkage long sys_getuid16(void);
1147asmlinkage long sys_geteuid16(void);
1148asmlinkage long sys_getgid16(void);
1149asmlinkage long sys_getegid16(void);
1150#endif
1151
1152/* obsolete */
1153asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1154
1155/* obsolete */
1156asmlinkage long sys_stat(const char __user *filename,
1157 struct __old_kernel_stat __user *statbuf);
1158asmlinkage long sys_lstat(const char __user *filename,
1159 struct __old_kernel_stat __user *statbuf);
1160asmlinkage long sys_fstat(unsigned int fd,
1161 struct __old_kernel_stat __user *statbuf);
1162asmlinkage long sys_readlink(const char __user *path,
1163 char __user *buf, int bufsiz);
1164
1165/* obsolete */
1166asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1167
1168/* obsolete */
1169asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1170
1171/* obsolete */
1172asmlinkage long sys_gethostname(char __user *name, int len);
1173asmlinkage long sys_uname(struct old_utsname __user *);
1174asmlinkage long sys_olduname(struct oldold_utsname __user *);
1175#ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1176asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1177#endif
1178
1179/* obsolete */
1180asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1181 unsigned long third, void __user *ptr, long fifth);
1182
1183/* obsolete */
1184asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1185 unsigned long prot, unsigned long flags,
1186 unsigned long fd, unsigned long pgoff);
1187asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1188
1189
1190/*
1191 * Not a real system call, but a placeholder for syscalls which are
1192 * not implemented -- see kernel/sys_ni.c
1193 */
1194asmlinkage long sys_ni_syscall(void);
1195
1196#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1197
1198asmlinkage long sys_ni_posix_timers(void);
1199
1200/*
1201 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1202 * Instead, use one of the functions which work equivalently, such as
1203 * the ksys_xyzyyz() functions prototyped below.
1204 */
1205ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1206int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1207ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1208void ksys_sync(void);
1209int ksys_unshare(unsigned long unshare_flags);
1210int ksys_setsid(void);
1211int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1212 unsigned int flags);
1213ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1214 loff_t pos);
1215ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1216 size_t count, loff_t pos);
1217int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1218#ifdef CONFIG_ADVISE_SYSCALLS
1219int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1220#else
1221static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1222 int advice)
1223{
1224 return -EINVAL;
1225}
1226#endif
1227unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1228 unsigned long prot, unsigned long flags,
1229 unsigned long fd, unsigned long pgoff);
1230ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1231int ksys_ipc(unsigned int call, int first, unsigned long second,
1232 unsigned long third, void __user * ptr, long fifth);
1233int compat_ksys_ipc(u32 call, int first, int second,
1234 u32 third, u32 ptr, u32 fifth);
1235
1236/*
1237 * The following kernel syscall equivalents are just wrappers to fs-internal
1238 * functions. Therefore, provide stubs to be inlined at the callsites.
1239 */
1240extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1241 gid_t group, int flag);
1242
1243static inline long ksys_chown(const char __user *filename, uid_t user,
1244 gid_t group)
1245{
1246 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1247}
1248
1249static inline long ksys_lchown(const char __user *filename, uid_t user,
1250 gid_t group)
1251{
1252 return do_fchownat(AT_FDCWD, filename, user, group,
1253 AT_SYMLINK_NOFOLLOW);
1254}
1255
1256extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1257
1258static inline long ksys_ftruncate(unsigned int fd, loff_t length)
1259{
1260 return do_sys_ftruncate(fd, length, 1);
1261}
1262
1263extern long do_sys_truncate(const char __user *pathname, loff_t length);
1264
1265static inline long ksys_truncate(const char __user *pathname, loff_t length)
1266{
1267 return do_sys_truncate(pathname, length);
1268}
1269
1270static inline unsigned int ksys_personality(unsigned int personality)
1271{
1272 unsigned int old = current->personality;
1273
1274 if (personality != 0xffffffff)
1275 set_personality(personality);
1276
1277 return old;
1278}
1279
1280/* for __ARCH_WANT_SYS_IPC */
1281long ksys_semtimedop(int semid, struct sembuf __user *tsops,
1282 unsigned int nsops,
1283 const struct __kernel_timespec __user *timeout);
1284long ksys_semget(key_t key, int nsems, int semflg);
1285long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
1286long ksys_msgget(key_t key, int msgflg);
1287long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
1288long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1289 long msgtyp, int msgflg);
1290long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1291 int msgflg);
1292long ksys_shmget(key_t key, size_t size, int shmflg);
1293long ksys_shmdt(char __user *shmaddr);
1294long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
1295long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
1296 unsigned int nsops,
1297 const struct old_timespec32 __user *timeout);
1298long __do_semtimedop(int semid, struct sembuf *tsems, unsigned int nsops,
1299 const struct timespec64 *timeout,
1300 struct ipc_namespace *ns);
1301
1302int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
1303 int __user *optlen);
1304int __sys_setsockopt(int fd, int level, int optname, char __user *optval,
1305 int optlen);
1306#endif