syscalls.h

   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;
  80struct ns_id_req;
  81struct xattr_args;
  82struct file_attr;
  83
  84#include <linux/types.h>
  85#include <linux/aio_abi.h>
  86#include <linux/capability.h>
  87#include <linux/signal.h>
  88#include <linux/list.h>
  89#include <linux/bug.h>
  90#include <linux/sem.h>
  91#include <asm/siginfo.h>
  92#include <linux/unistd.h>
  93#include <linux/quota.h>
  94#include <linux/key.h>
  95#include <linux/personality.h>
  96#include <trace/syscall.h>
  97
  98#ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
  99/*
 100 * It may be useful for an architecture to override the definitions of the
 101 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
 102 * different calling convention for syscalls. To allow for that, the prototypes
 103 * for the sys_*() functions below will *not* be included if
 104 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
 105 */
 106#include <asm/syscall_wrapper.h>
 107#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
 108
 109/*
 110 * __MAP - apply a macro to syscall arguments
 111 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
 112 *    m(t1, a1), m(t2, a2), ..., m(tn, an)
 113 * The first argument must be equal to the amount of type/name
 114 * pairs given.  Note that this list of pairs (i.e. the arguments
 115 * of __MAP starting at the third one) is in the same format as
 116 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
 117 */
 118#define __MAP0(m,...)
 119#define __MAP1(m,t,a,...) m(t,a)
 120#define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
 121#define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
 122#define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
 123#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
 124#define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
 125#define __MAP(n,...) __MAP##n(__VA_ARGS__)
 126
 127#define __SC_DECL(t, a)	t a
 128#define __TYPE_AS(t, v)	__same_type((__force t)0, v)
 129#define __TYPE_IS_L(t)	(__TYPE_AS(t, 0L))
 130#define __TYPE_IS_UL(t)	(__TYPE_AS(t, 0UL))
 131#define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
 132#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
 133#define __SC_CAST(t, a)	(__force t) a
 134#define __SC_TYPE(t, a)	t
 135#define __SC_ARGS(t, a)	a
 136#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
 137
 138#ifdef CONFIG_FTRACE_SYSCALLS
 139#define __SC_STR_ADECL(t, a)	#a
 140#define __SC_STR_TDECL(t, a)	#t
 141
 142extern struct trace_event_class event_class_syscall_enter;
 143extern struct trace_event_class event_class_syscall_exit;
 144extern struct trace_event_functions enter_syscall_print_funcs;
 145extern struct trace_event_functions exit_syscall_print_funcs;
 146
 147#define SYSCALL_TRACE_ENTER_EVENT(sname)				\
 148	static struct syscall_metadata __syscall_meta_##sname;		\
 149	static struct trace_event_call __used				\
 150	  event_enter_##sname = {					\
 151		.class			= &event_class_syscall_enter,	\
 152		{							\
 153			.name                   = "sys_enter"#sname,	\
 154		},							\
 155		.event.funcs            = &enter_syscall_print_funcs,	\
 156		.data			= (void *)&__syscall_meta_##sname,\
 157		.flags                  = TRACE_EVENT_FL_CAP_ANY,	\
 158	};								\
 159	static struct trace_event_call __used				\
 160	  __section("_ftrace_events")					\
 161	 *__event_enter_##sname = &event_enter_##sname;
 162
 163#define SYSCALL_TRACE_EXIT_EVENT(sname)					\
 164	static struct syscall_metadata __syscall_meta_##sname;		\
 165	static struct trace_event_call __used				\
 166	  event_exit_##sname = {					\
 167		.class			= &event_class_syscall_exit,	\
 168		{							\
 169			.name                   = "sys_exit"#sname,	\
 170		},							\
 171		.event.funcs		= &exit_syscall_print_funcs,	\
 172		.data			= (void *)&__syscall_meta_##sname,\
 173		.flags                  = TRACE_EVENT_FL_CAP_ANY,	\
 174	};								\
 175	static struct trace_event_call __used				\
 176	  __section("_ftrace_events")					\
 177	*__event_exit_##sname = &event_exit_##sname;
 178
 179#define SYSCALL_METADATA(sname, nb, ...)			\
 180	static const char *types_##sname[] = {			\
 181		__MAP(nb,__SC_STR_TDECL,__VA_ARGS__)		\
 182	};							\
 183	static const char *args_##sname[] = {			\
 184		__MAP(nb,__SC_STR_ADECL,__VA_ARGS__)		\
 185	};							\
 186	SYSCALL_TRACE_ENTER_EVENT(sname);			\
 187	SYSCALL_TRACE_EXIT_EVENT(sname);			\
 188	static struct syscall_metadata __used			\
 189	  __syscall_meta_##sname = {				\
 190		.name 		= "sys"#sname,			\
 191		.syscall_nr	= -1,	/* Filled in at boot */	\
 192		.nb_args 	= nb,				\
 193		.types		= nb ? types_##sname : NULL,	\
 194		.args		= nb ? args_##sname : NULL,	\
 195		.enter_event	= &event_enter_##sname,		\
 196		.exit_event	= &event_exit_##sname,		\
 197		.enter_fields	= LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
 198	};							\
 199	static struct syscall_metadata __used			\
 200	  __section("__syscalls_metadata")			\
 201	 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
 202
 203static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
 204{
 205	return tp_event->class == &event_class_syscall_enter ||
 206	       tp_event->class == &event_class_syscall_exit;
 207}
 208
 209#else
 210#define SYSCALL_METADATA(sname, nb, ...)
 211
 212static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
 213{
 214	return 0;
 215}
 216#endif
 217
 218#ifndef SYSCALL_DEFINE0
 219#define SYSCALL_DEFINE0(sname)					\
 220	SYSCALL_METADATA(_##sname, 0);				\
 221	asmlinkage long sys_##sname(void);			\
 222	ALLOW_ERROR_INJECTION(sys_##sname, ERRNO);		\
 223	asmlinkage long sys_##sname(void)
 224#endif /* SYSCALL_DEFINE0 */
 225
 226#define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
 227#define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
 228#define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
 229#define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
 230#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
 231#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
 232
 233#define SYSCALL_DEFINE_MAXARGS	6
 234
 235#define SYSCALL_DEFINEx(x, sname, ...)				\
 236	SYSCALL_METADATA(sname, x, __VA_ARGS__)			\
 237	__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
 238
 239#define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
 240
 241/*
 242 * The asmlinkage stub is aliased to a function named __se_sys_*() which
 243 * sign-extends 32-bit ints to longs whenever needed. The actual work is
 244 * done within __do_sys_*().
 245 */
 246#ifndef __SYSCALL_DEFINEx
 247#define __SYSCALL_DEFINEx(x, name, ...)					\
 248	__diag_push();							\
 249	__diag_ignore(GCC, 8, "-Wattribute-alias",			\
 250		      "Type aliasing is used to sanitize syscall arguments");\
 251	asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))	\
 252		__attribute__((alias(__stringify(__se_sys##name))));	\
 253	ALLOW_ERROR_INJECTION(sys##name, ERRNO);			\
 254	static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
 255	asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__));	\
 256	asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
 257	{								\
 258		long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
 259		__MAP(x,__SC_TEST,__VA_ARGS__);				\
 260		__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));	\
 261		return ret;						\
 262	}								\
 263	__diag_pop();							\
 264	static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
 265#endif /* __SYSCALL_DEFINEx */
 266
 267/* For split 64-bit arguments on 32-bit architectures */
 268#ifdef __LITTLE_ENDIAN
 269#define SC_ARG64(name) u32, name##_lo, u32, name##_hi
 270#else
 271#define SC_ARG64(name) u32, name##_hi, u32, name##_lo
 272#endif
 273#define SC_VAL64(type, name) ((type) name##_hi << 32 | name##_lo)
 274
 275#ifdef CONFIG_COMPAT
 276#define SYSCALL32_DEFINE0 COMPAT_SYSCALL_DEFINE0
 277#define SYSCALL32_DEFINE1 COMPAT_SYSCALL_DEFINE1
 278#define SYSCALL32_DEFINE2 COMPAT_SYSCALL_DEFINE2
 279#define SYSCALL32_DEFINE3 COMPAT_SYSCALL_DEFINE3
 280#define SYSCALL32_DEFINE4 COMPAT_SYSCALL_DEFINE4
 281#define SYSCALL32_DEFINE5 COMPAT_SYSCALL_DEFINE5
 282#define SYSCALL32_DEFINE6 COMPAT_SYSCALL_DEFINE6
 283#else
 284#define SYSCALL32_DEFINE0 SYSCALL_DEFINE0
 285#define SYSCALL32_DEFINE1 SYSCALL_DEFINE1
 286#define SYSCALL32_DEFINE2 SYSCALL_DEFINE2
 287#define SYSCALL32_DEFINE3 SYSCALL_DEFINE3
 288#define SYSCALL32_DEFINE4 SYSCALL_DEFINE4
 289#define SYSCALL32_DEFINE5 SYSCALL_DEFINE5
 290#define SYSCALL32_DEFINE6 SYSCALL_DEFINE6
 291#endif
 292
 293/*
 294 * These syscall function prototypes are kept in the same order as
 295 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
 296 * followed by deprecated or obsolete system calls.
 297 *
 298 * Please note that these prototypes here are only provided for information
 299 * purposes, for static analysis, and for linking from the syscall table.
 300 * These functions should not be called elsewhere from kernel code.
 301 *
 302 * As the syscall calling convention may be different from the default
 303 * for architectures overriding the syscall calling convention, do not
 304 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
 305 */
 306#ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
 307asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
 308asmlinkage long sys_io_destroy(aio_context_t ctx);
 309asmlinkage long sys_io_submit(aio_context_t, long,
 310			struct iocb __user * __user *);
 311asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
 312			      struct io_event __user *result);
 313asmlinkage long sys_io_getevents(aio_context_t ctx_id,
 314				long min_nr,
 315				long nr,
 316				struct io_event __user *events,
 317				struct __kernel_timespec __user *timeout);
 318asmlinkage long sys_io_getevents_time32(__u32 ctx_id,
 319				__s32 min_nr,
 320				__s32 nr,
 321				struct io_event __user *events,
 322				struct old_timespec32 __user *timeout);
 323asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
 324				long min_nr,
 325				long nr,
 326				struct io_event __user *events,
 327				struct __kernel_timespec __user *timeout,
 328				const struct __aio_sigset __user *sig);
 329asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
 330				long min_nr,
 331				long nr,
 332				struct io_event __user *events,
 333				struct old_timespec32 __user *timeout,
 334				const struct __aio_sigset __user *sig);
 335asmlinkage long sys_io_uring_setup(u32 entries,
 336				struct io_uring_params __user *p);
 337asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
 338				u32 min_complete, u32 flags,
 339				const void __user *argp, size_t argsz);
 340asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
 341				void __user *arg, unsigned int nr_args);
 342asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
 343			     const void __user *value, size_t size, int flags);
 344asmlinkage long sys_setxattrat(int dfd, const char __user *path, unsigned int at_flags,
 345			       const char __user *name,
 346			       const struct xattr_args __user *args, size_t size);
 347asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
 348			      const void __user *value, size_t size, int flags);
 349asmlinkage long sys_fsetxattr(int fd, const char __user *name,
 350			      const void __user *value, size_t size, int flags);
 351asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
 352			     void __user *value, size_t size);
 353asmlinkage long sys_getxattrat(int dfd, const char __user *path, unsigned int at_flags,
 354			       const char __user *name,
 355			       struct xattr_args __user *args, size_t size);
 356asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
 357			      void __user *value, size_t size);
 358asmlinkage long sys_fgetxattr(int fd, const char __user *name,
 359			      void __user *value, size_t size);
 360asmlinkage long sys_listxattr(const char __user *path, char __user *list,
 361			      size_t size);
 362asmlinkage long sys_listxattrat(int dfd, const char __user *path,
 363				unsigned int at_flags,
 364				char __user *list, 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_removexattrat(int dfd, const char __user *path,
 371				  unsigned int at_flags,
 372				  const char __user *name);
 373asmlinkage long sys_lremovexattr(const char __user *path,
 374				 const char __user *name);
 375asmlinkage long sys_fremovexattr(int fd, const char __user *name);
 376asmlinkage long sys_file_getattr(int dfd, const char __user *filename,
 377				 struct file_attr __user *attr, size_t usize,
 378				 unsigned int at_flags);
 379asmlinkage long sys_file_setattr(int dfd, const char __user *filename,
 380				 struct file_attr __user *attr, size_t usize,
 381				 unsigned int at_flags);
 382asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
 383asmlinkage long sys_eventfd2(unsigned int count, int flags);
 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);
 396asmlinkage long sys_dup(unsigned int fildes);
 397asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
 398asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
 399#if BITS_PER_LONG == 32
 400asmlinkage long sys_fcntl64(unsigned int fd,
 401				unsigned int cmd, unsigned long arg);
 402#endif
 403asmlinkage long sys_inotify_init1(int flags);
 404asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
 405					u32 mask);
 406asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
 407asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
 408				unsigned long arg);
 409asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
 410asmlinkage long sys_ioprio_get(int which, int who);
 411asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
 412asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
 413			    unsigned dev);
 414asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
 415asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
 416asmlinkage long sys_symlinkat(const char __user * oldname,
 417			      int newdfd, const char __user * newname);
 418asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
 419			   int newdfd, const char __user *newname, int flags);
 420asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
 421			     int newdfd, const char __user * newname);
 422asmlinkage long sys_umount(char __user *name, int flags);
 423asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
 424				char __user *type, unsigned long flags,
 425				void __user *data);
 426asmlinkage long sys_pivot_root(const char __user *new_root,
 427				const char __user *put_old);
 428asmlinkage long sys_statfs(const char __user * path,
 429				struct statfs __user *buf);
 430asmlinkage long sys_statfs64(const char __user *path, size_t sz,
 431				struct statfs64 __user *buf);
 432asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
 433asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
 434				struct statfs64 __user *buf);
 435asmlinkage long sys_statmount(const struct mnt_id_req __user *req,
 436			      struct statmount __user *buf, size_t bufsize,
 437			      unsigned int flags);
 438asmlinkage long sys_listmount(const struct mnt_id_req __user *req,
 439			      u64 __user *mnt_ids, size_t nr_mnt_ids,
 440			      unsigned int flags);
 441asmlinkage long sys_listns(const struct ns_id_req __user *req,
 442			   u64 __user *ns_ids, size_t nr_ns_ids,
 443			   unsigned int flags);
 444asmlinkage long sys_truncate(const char __user *path, long length);
 445asmlinkage long sys_ftruncate(unsigned int fd, off_t length);
 446#if BITS_PER_LONG == 32
 447asmlinkage long sys_truncate64(const char __user *path, loff_t length);
 448asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
 449#endif
 450asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
 451asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
 452asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode,
 453			       int flags);
 454asmlinkage long sys_chdir(const char __user *filename);
 455asmlinkage long sys_fchdir(unsigned int fd);
 456asmlinkage long sys_chroot(const char __user *filename);
 457asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
 458asmlinkage long sys_fchmodat(int dfd, const char __user *filename,
 459			     umode_t mode);
 460asmlinkage long sys_fchmodat2(int dfd, const char __user *filename,
 461			     umode_t mode, unsigned int flags);
 462asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
 463			     gid_t group, int flag);
 464asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
 465asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
 466			   umode_t mode);
 467asmlinkage long sys_openat2(int dfd, const char __user *filename,
 468			    struct open_how __user *how, size_t size);
 469asmlinkage long sys_close(unsigned int fd);
 470asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd,
 471				unsigned int flags);
 472asmlinkage long sys_vhangup(void);
 473asmlinkage long sys_pipe2(int __user *fildes, int flags);
 474asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
 475				qid_t id, void __user *addr);
 476asmlinkage long sys_quotactl_fd(unsigned int fd, unsigned int cmd, qid_t id,
 477				void __user *addr);
 478asmlinkage long sys_getdents64(unsigned int fd,
 479				struct linux_dirent64 __user *dirent,
 480				unsigned int count);
 481asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
 482			unsigned long offset_low, loff_t __user *result,
 483			unsigned int whence);
 484asmlinkage long sys_lseek(unsigned int fd, off_t offset,
 485			  unsigned int whence);
 486asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
 487asmlinkage long sys_write(unsigned int fd, const char __user *buf,
 488			  size_t count);
 489asmlinkage long sys_readv(unsigned long fd,
 490			  const struct iovec __user *vec,
 491			  unsigned long vlen);
 492asmlinkage long sys_writev(unsigned long fd,
 493			   const struct iovec __user *vec,
 494			   unsigned long vlen);
 495asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
 496			    size_t count, loff_t pos);
 497asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
 498			     size_t count, loff_t pos);
 499asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
 500			   unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
 501asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
 502			    unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
 503asmlinkage long sys_sendfile64(int out_fd, int in_fd,
 504			       loff_t __user *offset, size_t count);
 505asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
 506			     fd_set __user *, struct __kernel_timespec __user *,
 507			     void __user *);
 508asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
 509			     fd_set __user *, struct old_timespec32 __user *,
 510			     void __user *);
 511asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
 512			  struct __kernel_timespec __user *, const sigset_t __user *,
 513			  size_t);
 514asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
 515			  struct old_timespec32 __user *, const sigset_t __user *,
 516			  size_t);
 517asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
 518asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
 519			     unsigned long nr_segs, unsigned int flags);
 520asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
 521			   int fd_out, loff_t __user *off_out,
 522			   size_t len, unsigned int flags);
 523asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
 524asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
 525			       int bufsiz);
 526asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
 527			       struct stat __user *statbuf, int flag);
 528asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
 529#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
 530asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
 531asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
 532			       struct stat64 __user *statbuf, int flag);
 533#endif
 534asmlinkage long sys_sync(void);
 535asmlinkage long sys_fsync(unsigned int fd);
 536asmlinkage long sys_fdatasync(unsigned int fd);
 537asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
 538				     loff_t offset, loff_t nbytes);
 539asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
 540					unsigned int flags);
 541asmlinkage long sys_timerfd_create(int clockid, int flags);
 542asmlinkage long sys_timerfd_settime(int ufd, int flags,
 543				    const struct __kernel_itimerspec __user *utmr,
 544				    struct __kernel_itimerspec __user *otmr);
 545asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
 546asmlinkage long sys_timerfd_gettime32(int ufd,
 547				   struct old_itimerspec32 __user *otmr);
 548asmlinkage long sys_timerfd_settime32(int ufd, int flags,
 549				   const struct old_itimerspec32 __user *utmr,
 550				   struct old_itimerspec32 __user *otmr);
 551asmlinkage long sys_utimensat(int dfd, const char __user *filename,
 552				struct __kernel_timespec __user *utimes,
 553				int flags);
 554asmlinkage long sys_utimensat_time32(unsigned int dfd,
 555				const char __user *filename,
 556				struct old_timespec32 __user *t, int flags);
 557asmlinkage long sys_acct(const char __user *name);
 558asmlinkage long sys_capget(cap_user_header_t header,
 559				cap_user_data_t dataptr);
 560asmlinkage long sys_capset(cap_user_header_t header,
 561				const cap_user_data_t data);
 562asmlinkage long sys_personality(unsigned int personality);
 563asmlinkage long sys_exit(int error_code);
 564asmlinkage long sys_exit_group(int error_code);
 565asmlinkage long sys_waitid(int which, pid_t pid,
 566			   struct siginfo __user *infop,
 567			   int options, struct rusage __user *ru);
 568asmlinkage long sys_set_tid_address(int __user *tidptr);
 569asmlinkage long sys_unshare(unsigned long unshare_flags);
 570asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
 571			  const struct __kernel_timespec __user *utime,
 572			  u32 __user *uaddr2, u32 val3);
 573asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
 574				 const struct old_timespec32 __user *utime,
 575				 u32 __user *uaddr2, u32 val3);
 576asmlinkage long sys_get_robust_list(int pid,
 577				    struct robust_list_head __user * __user *head_ptr,
 578				    size_t __user *len_ptr);
 579asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
 580				    size_t len);
 581
 582asmlinkage long sys_futex_waitv(struct futex_waitv __user *waiters,
 583				unsigned int nr_futexes, unsigned int flags,
 584				struct __kernel_timespec __user *timeout, clockid_t clockid);
 585
 586asmlinkage long sys_futex_wake(void __user *uaddr, unsigned long mask, int nr, unsigned int flags);
 587
 588asmlinkage long sys_futex_wait(void __user *uaddr, unsigned long val, unsigned long mask,
 589			       unsigned int flags, struct __kernel_timespec __user *timespec,
 590			       clockid_t clockid);
 591
 592asmlinkage long sys_futex_requeue(struct futex_waitv __user *waiters,
 593				  unsigned int flags, int nr_wake, int nr_requeue);
 594
 595asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
 596			      struct __kernel_timespec __user *rmtp);
 597asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
 598				     struct old_timespec32 __user *rmtp);
 599asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value);
 600asmlinkage long sys_setitimer(int which,
 601				struct __kernel_old_itimerval __user *value,
 602				struct __kernel_old_itimerval __user *ovalue);
 603asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
 604				struct kexec_segment __user *segments,
 605				unsigned long flags);
 606asmlinkage long sys_init_module(void __user *umod, unsigned long len,
 607				const char __user *uargs);
 608asmlinkage long sys_delete_module(const char __user *name_user,
 609				unsigned int flags);
 610asmlinkage long sys_timer_create(clockid_t which_clock,
 611				 struct sigevent __user *timer_event_spec,
 612				 timer_t __user * created_timer_id);
 613asmlinkage long sys_timer_gettime(timer_t timer_id,
 614				struct __kernel_itimerspec __user *setting);
 615asmlinkage long sys_timer_getoverrun(timer_t timer_id);
 616asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
 617				const struct __kernel_itimerspec __user *new_setting,
 618				struct __kernel_itimerspec __user *old_setting);
 619asmlinkage long sys_timer_delete(timer_t timer_id);
 620asmlinkage long sys_clock_settime(clockid_t which_clock,
 621				const struct __kernel_timespec __user *tp);
 622asmlinkage long sys_clock_gettime(clockid_t which_clock,
 623				struct __kernel_timespec __user *tp);
 624asmlinkage long sys_clock_getres(clockid_t which_clock,
 625				struct __kernel_timespec __user *tp);
 626asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
 627				const struct __kernel_timespec __user *rqtp,
 628				struct __kernel_timespec __user *rmtp);
 629asmlinkage long sys_timer_gettime32(timer_t timer_id,
 630				 struct old_itimerspec32 __user *setting);
 631asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
 632					 struct old_itimerspec32 __user *new,
 633					 struct old_itimerspec32 __user *old);
 634asmlinkage long sys_clock_settime32(clockid_t which_clock,
 635				struct old_timespec32 __user *tp);
 636asmlinkage long sys_clock_gettime32(clockid_t which_clock,
 637				struct old_timespec32 __user *tp);
 638asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
 639				struct old_timespec32 __user *tp);
 640asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
 641				struct old_timespec32 __user *rqtp,
 642				struct old_timespec32 __user *rmtp);
 643asmlinkage long sys_syslog(int type, char __user *buf, int len);
 644asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
 645			   unsigned long data);
 646asmlinkage long sys_sched_setparam(pid_t pid,
 647					struct sched_param __user *param);
 648asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
 649					struct sched_param __user *param);
 650asmlinkage long sys_sched_getscheduler(pid_t pid);
 651asmlinkage long sys_sched_getparam(pid_t pid,
 652					struct sched_param __user *param);
 653asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
 654					unsigned long __user *user_mask_ptr);
 655asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
 656					unsigned long __user *user_mask_ptr);
 657asmlinkage long sys_sched_yield(void);
 658asmlinkage long sys_sched_get_priority_max(int policy);
 659asmlinkage long sys_sched_get_priority_min(int policy);
 660asmlinkage long sys_sched_rr_get_interval(pid_t pid,
 661				struct __kernel_timespec __user *interval);
 662asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
 663						 struct old_timespec32 __user *interval);
 664asmlinkage long sys_restart_syscall(void);
 665asmlinkage long sys_kill(pid_t pid, int sig);
 666asmlinkage long sys_tkill(pid_t pid, int sig);
 667asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
 668asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
 669				struct sigaltstack __user *uoss);
 670asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
 671#ifndef CONFIG_ODD_RT_SIGACTION
 672asmlinkage long sys_rt_sigaction(int,
 673				 const struct sigaction __user *,
 674				 struct sigaction __user *,
 675				 size_t);
 676#endif
 677asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
 678				sigset_t __user *oset, size_t sigsetsize);
 679asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
 680asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
 681				siginfo_t __user *uinfo,
 682				const struct __kernel_timespec __user *uts,
 683				size_t sigsetsize);
 684asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
 685				siginfo_t __user *uinfo,
 686				const struct old_timespec32 __user *uts,
 687				size_t sigsetsize);
 688asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
 689asmlinkage long sys_setpriority(int which, int who, int niceval);
 690asmlinkage long sys_getpriority(int which, int who);
 691asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
 692				void __user *arg);
 693asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
 694asmlinkage long sys_setgid(gid_t gid);
 695asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
 696asmlinkage long sys_setuid(uid_t uid);
 697asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
 698asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
 699asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
 700asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
 701asmlinkage long sys_setfsuid(uid_t uid);
 702asmlinkage long sys_setfsgid(gid_t gid);
 703asmlinkage long sys_times(struct tms __user *tbuf);
 704asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
 705asmlinkage long sys_getpgid(pid_t pid);
 706asmlinkage long sys_getsid(pid_t pid);
 707asmlinkage long sys_setsid(void);
 708asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
 709asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
 710asmlinkage long sys_newuname(struct new_utsname __user *name);
 711asmlinkage long sys_sethostname(char __user *name, int len);
 712asmlinkage long sys_setdomainname(char __user *name, int len);
 713asmlinkage long sys_getrlimit(unsigned int resource,
 714				struct rlimit __user *rlim);
 715asmlinkage long sys_setrlimit(unsigned int resource,
 716				struct rlimit __user *rlim);
 717asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
 718asmlinkage long sys_umask(int mask);
 719asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
 720			unsigned long arg4, unsigned long arg5);
 721asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
 722asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv,
 723				struct timezone __user *tz);
 724asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv,
 725				struct timezone __user *tz);
 726asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
 727asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
 728asmlinkage long sys_getpid(void);
 729asmlinkage long sys_getppid(void);
 730asmlinkage long sys_getuid(void);
 731asmlinkage long sys_geteuid(void);
 732asmlinkage long sys_getgid(void);
 733asmlinkage long sys_getegid(void);
 734asmlinkage long sys_gettid(void);
 735asmlinkage long sys_sysinfo(struct sysinfo __user *info);
 736asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
 737asmlinkage long sys_mq_unlink(const char __user *name);
 738asmlinkage 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);
 739asmlinkage 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);
 740asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
 741asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
 742asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
 743			char __user *u_msg_ptr,
 744			unsigned int msg_len, unsigned int __user *u_msg_prio,
 745			const struct old_timespec32 __user *u_abs_timeout);
 746asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
 747			const char __user *u_msg_ptr,
 748			unsigned int msg_len, unsigned int msg_prio,
 749			const struct old_timespec32 __user *u_abs_timeout);
 750asmlinkage long sys_msgget(key_t key, int msgflg);
 751asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
 752asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
 753asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
 754				size_t msgsz, long msgtyp, int msgflg);
 755asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
 756				size_t msgsz, int msgflg);
 757asmlinkage long sys_semget(key_t key, int nsems, int semflg);
 758asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
 759asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
 760asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
 761				unsigned nsops,
 762				const struct __kernel_timespec __user *timeout);
 763asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
 764				unsigned nsops,
 765				const struct old_timespec32 __user *timeout);
 766asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
 767				unsigned nsops);
 768asmlinkage long sys_shmget(key_t key, size_t size, int flag);
 769asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
 770asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
 771asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
 772asmlinkage long sys_shmdt(char __user *shmaddr);
 773asmlinkage long sys_socket(int, int, int);
 774asmlinkage long sys_socketpair(int, int, int, int __user *);
 775asmlinkage long sys_bind(int, struct sockaddr __user *, int);
 776asmlinkage long sys_listen(int, int);
 777asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
 778asmlinkage long sys_connect(int, struct sockaddr __user *, int);
 779asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
 780asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
 781asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
 782				struct sockaddr __user *, int);
 783asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
 784				struct sockaddr __user *, int __user *);
 785asmlinkage long sys_setsockopt(int fd, int level, int optname,
 786				char __user *optval, int optlen);
 787asmlinkage long sys_getsockopt(int fd, int level, int optname,
 788				char __user *optval, int __user *optlen);
 789asmlinkage long sys_shutdown(int, int);
 790asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
 791asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
 792asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
 793asmlinkage long sys_brk(unsigned long brk);
 794asmlinkage long sys_munmap(unsigned long addr, size_t len);
 795asmlinkage long sys_mremap(unsigned long addr,
 796			   unsigned long old_len, unsigned long new_len,
 797			   unsigned long flags, unsigned long new_addr);
 798asmlinkage long sys_add_key(const char __user *_type,
 799			    const char __user *_description,
 800			    const void __user *_payload,
 801			    size_t plen,
 802			    key_serial_t destringid);
 803asmlinkage long sys_request_key(const char __user *_type,
 804				const char __user *_description,
 805				const char __user *_callout_info,
 806				key_serial_t destringid);
 807asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
 808			   unsigned long arg4, unsigned long arg5);
 809#ifdef CONFIG_CLONE_BACKWARDS
 810asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
 811	       int __user *);
 812#else
 813#ifdef CONFIG_CLONE_BACKWARDS3
 814asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
 815			  int __user *, unsigned long);
 816#else
 817asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
 818	       int __user *, unsigned long);
 819#endif
 820#endif
 821
 822asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size);
 823
 824asmlinkage long sys_execve(const char __user *filename,
 825		const char __user *const __user *argv,
 826		const char __user *const __user *envp);
 827asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
 828
 829/* CONFIG_MMU only */
 830asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
 831asmlinkage long sys_swapoff(const char __user *specialfile);
 832asmlinkage long sys_mprotect(unsigned long start, size_t len,
 833				unsigned long prot);
 834asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
 835asmlinkage long sys_mlock(unsigned long start, size_t len);
 836asmlinkage long sys_munlock(unsigned long start, size_t len);
 837asmlinkage long sys_mlockall(int flags);
 838asmlinkage long sys_munlockall(void);
 839asmlinkage long sys_mincore(unsigned long start, size_t len,
 840				unsigned char __user * vec);
 841asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
 842asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
 843			size_t vlen, int behavior, unsigned int flags);
 844asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags);
 845asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
 846			unsigned long prot, unsigned long pgoff,
 847			unsigned long flags);
 848asmlinkage long sys_mseal(unsigned long start, size_t len, unsigned long flags);
 849asmlinkage long sys_mbind(unsigned long start, unsigned long len,
 850				unsigned long mode,
 851				const unsigned long __user *nmask,
 852				unsigned long maxnode,
 853				unsigned flags);
 854asmlinkage long sys_get_mempolicy(int __user *policy,
 855				unsigned long __user *nmask,
 856				unsigned long maxnode,
 857				unsigned long addr, unsigned long flags);
 858asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
 859				unsigned long maxnode);
 860asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
 861				const unsigned long __user *from,
 862				const unsigned long __user *to);
 863asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
 864				const void __user * __user *pages,
 865				const int __user *nodes,
 866				int __user *status,
 867				int flags);
 868asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t  pid, int sig,
 869		siginfo_t __user *uinfo);
 870asmlinkage long sys_perf_event_open(
 871		struct perf_event_attr __user *attr_uptr,
 872		pid_t pid, int cpu, int group_fd, unsigned long flags);
 873asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
 874asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
 875			     unsigned int vlen, unsigned flags,
 876			     struct __kernel_timespec __user *timeout);
 877asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
 878			     unsigned int vlen, unsigned flags,
 879			     struct old_timespec32 __user *timeout);
 880asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
 881				int options, struct rusage __user *ru);
 882asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
 883				const struct rlimit64 __user *new_rlim,
 884				struct rlimit64 __user *old_rlim);
 885asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
 886#if defined(CONFIG_ARCH_SPLIT_ARG64)
 887asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
 888                                unsigned int mask_1, unsigned int mask_2,
 889				int dfd, const char  __user * pathname);
 890#else
 891asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
 892				  u64 mask, int fd,
 893				  const char  __user *pathname);
 894#endif
 895asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
 896				      struct file_handle __user *handle,
 897				      void __user *mnt_id, int flag);
 898asmlinkage long sys_open_by_handle_at(int mountdirfd,
 899				      struct file_handle __user *handle,
 900				      int flags);
 901asmlinkage long sys_clock_adjtime(clockid_t which_clock,
 902				struct __kernel_timex __user *tx);
 903asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
 904				struct old_timex32 __user *tx);
 905asmlinkage long sys_syncfs(int fd);
 906asmlinkage long sys_setns(int fd, int nstype);
 907asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
 908asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
 909			     unsigned int vlen, unsigned flags);
 910asmlinkage long sys_process_vm_readv(pid_t pid,
 911				     const struct iovec __user *lvec,
 912				     unsigned long liovcnt,
 913				     const struct iovec __user *rvec,
 914				     unsigned long riovcnt,
 915				     unsigned long flags);
 916asmlinkage long sys_process_vm_writev(pid_t pid,
 917				      const struct iovec __user *lvec,
 918				      unsigned long liovcnt,
 919				      const struct iovec __user *rvec,
 920				      unsigned long riovcnt,
 921				      unsigned long flags);
 922asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
 923			 unsigned long idx1, unsigned long idx2);
 924asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
 925asmlinkage long sys_sched_setattr(pid_t pid,
 926					struct sched_attr __user *attr,
 927					unsigned int flags);
 928asmlinkage long sys_sched_getattr(pid_t pid,
 929					struct sched_attr __user *attr,
 930					unsigned int size,
 931					unsigned int flags);
 932asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
 933			      int newdfd, const char __user *newname,
 934			      unsigned int flags);
 935asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
 936			    void __user *uargs);
 937asmlinkage long sys_getrandom(char __user *buf, size_t count,
 938			      unsigned int flags);
 939asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
 940asmlinkage long sys_bpf(int cmd, union bpf_attr __user *attr, unsigned int size);
 941asmlinkage long sys_execveat(int dfd, const char __user *filename,
 942			const char __user *const __user *argv,
 943			const char __user *const __user *envp, int flags);
 944asmlinkage long sys_userfaultfd(int flags);
 945asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id);
 946asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
 947asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
 948				    int fd_out, loff_t __user *off_out,
 949				    size_t len, unsigned int flags);
 950asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
 951			    unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
 952			    rwf_t flags);
 953asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
 954			    unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
 955			    rwf_t flags);
 956asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
 957				  unsigned long prot, int pkey);
 958asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
 959asmlinkage long sys_pkey_free(int pkey);
 960asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
 961			  unsigned mask, struct statx __user *buffer);
 962asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
 963			 int flags, uint32_t sig);
 964asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
 965asmlinkage long sys_open_tree_attr(int dfd, const char __user *path,
 966				   unsigned flags,
 967				   struct mount_attr __user *uattr,
 968				   size_t usize);
 969asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
 970			       int to_dfd, const char __user *to_path,
 971			       unsigned int ms_flags);
 972asmlinkage long sys_mount_setattr(int dfd, const char __user *path,
 973				  unsigned int flags,
 974				  struct mount_attr __user *uattr, size_t usize);
 975asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
 976asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
 977			     const void __user *value, int aux);
 978asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
 979asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
 980asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
 981				       siginfo_t __user *info,
 982				       unsigned int flags);
 983asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
 984asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr,
 985		size_t size, __u32 flags);
 986asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type,
 987		const void __user *rule_attr, __u32 flags);
 988asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags);
 989asmlinkage long sys_memfd_secret(unsigned int flags);
 990asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len,
 991					    unsigned long home_node,
 992					    unsigned long flags);
 993asmlinkage long sys_cachestat(unsigned int fd,
 994		struct cachestat_range __user *cstat_range,
 995		struct cachestat __user *cstat, unsigned int flags);
 996asmlinkage long sys_map_shadow_stack(unsigned long addr, unsigned long size, unsigned int flags);
 997asmlinkage long sys_lsm_get_self_attr(unsigned int attr, struct lsm_ctx __user *ctx,
 998				      u32 __user *size, u32 flags);
 999asmlinkage long sys_lsm_set_self_attr(unsigned int attr, struct lsm_ctx __user *ctx,
1000				      u32 size, u32 flags);
1001asmlinkage long sys_lsm_list_modules(u64 __user *ids, u32 __user *size, u32 flags);
1002
1003/*
1004 * Architecture-specific system calls
1005 */
1006
1007/* x86 */
1008asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
1009
1010asmlinkage long sys_uretprobe(void);
1011
1012asmlinkage long sys_uprobe(void);
1013
1014/* pciconfig: alpha, arm, arm64, ia64, sparc */
1015asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
1016				unsigned long off, unsigned long len,
1017				void __user *buf);
1018asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
1019				unsigned long off, unsigned long len,
1020				void __user *buf);
1021asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
1022
1023/* powerpc */
1024asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
1025				 __u32 __user *ustatus);
1026asmlinkage long sys_spu_create(const char __user *name,
1027		unsigned int flags, umode_t mode, int fd);
1028
1029
1030/*
1031 * Deprecated system calls which are still defined in
1032 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
1033 */
1034
1035/* __ARCH_WANT_SYSCALL_NO_AT */
1036asmlinkage long sys_open(const char __user *filename,
1037				int flags, umode_t mode);
1038asmlinkage long sys_link(const char __user *oldname,
1039				const char __user *newname);
1040asmlinkage long sys_unlink(const char __user *pathname);
1041asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
1042				unsigned dev);
1043asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
1044asmlinkage long sys_chown(const char __user *filename,
1045				uid_t user, gid_t group);
1046asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
1047asmlinkage long sys_rmdir(const char __user *pathname);
1048asmlinkage long sys_lchown(const char __user *filename,
1049				uid_t user, gid_t group);
1050asmlinkage long sys_access(const char __user *filename, int mode);
1051asmlinkage long sys_rename(const char __user *oldname,
1052				const char __user *newname);
1053asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1054#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1055asmlinkage long sys_stat64(const char __user *filename,
1056				struct stat64 __user *statbuf);
1057asmlinkage long sys_lstat64(const char __user *filename,
1058				struct stat64 __user *statbuf);
1059#endif
1060
1061/* __ARCH_WANT_SYSCALL_NO_FLAGS */
1062asmlinkage long sys_pipe(int __user *fildes);
1063asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1064asmlinkage long sys_epoll_create(int size);
1065asmlinkage long sys_inotify_init(void);
1066asmlinkage long sys_eventfd(unsigned int count);
1067asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1068
1069/* __ARCH_WANT_SYSCALL_OFF_T */
1070asmlinkage long sys_sendfile(int out_fd, int in_fd,
1071			     off_t __user *offset, size_t count);
1072asmlinkage long sys_newstat(const char __user *filename,
1073				struct stat __user *statbuf);
1074asmlinkage long sys_newlstat(const char __user *filename,
1075				struct stat __user *statbuf);
1076asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1077
1078/* __ARCH_WANT_SYSCALL_DEPRECATED */
1079asmlinkage long sys_alarm(unsigned int seconds);
1080asmlinkage long sys_getpgrp(void);
1081asmlinkage long sys_pause(void);
1082asmlinkage long sys_time(__kernel_old_time_t __user *tloc);
1083asmlinkage long sys_time32(old_time32_t __user *tloc);
1084#ifdef __ARCH_WANT_SYS_UTIME
1085asmlinkage long sys_utime(char __user *filename,
1086				struct utimbuf __user *times);
1087asmlinkage long sys_utimes(char __user *filename,
1088				struct __kernel_old_timeval __user *utimes);
1089asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1090			      struct __kernel_old_timeval __user *utimes);
1091#endif
1092asmlinkage long sys_futimesat_time32(unsigned int dfd,
1093				     const char __user *filename,
1094				     struct old_timeval32 __user *t);
1095asmlinkage long sys_utime32(const char __user *filename,
1096				 struct old_utimbuf32 __user *t);
1097asmlinkage long sys_utimes_time32(const char __user *filename,
1098				  struct old_timeval32 __user *t);
1099asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1100asmlinkage long sys_getdents(unsigned int fd,
1101				struct linux_dirent __user *dirent,
1102				unsigned int count);
1103asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1104			fd_set __user *exp, struct __kernel_old_timeval __user *tvp);
1105asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1106				int timeout);
1107asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1108				int maxevents, int timeout);
1109asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1110asmlinkage long sys_vfork(void);
1111asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1112asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1113asmlinkage long sys_oldumount(char __user *name);
1114asmlinkage long sys_uselib(const char __user *library);
1115asmlinkage long sys_sysfs(int option,
1116				unsigned long arg1, unsigned long arg2);
1117asmlinkage long sys_fork(void);
1118
1119/* obsolete */
1120asmlinkage long sys_stime(__kernel_old_time_t __user *tptr);
1121asmlinkage long sys_stime32(old_time32_t __user *tptr);
1122
1123/* obsolete */
1124asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1125asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1126				old_sigset_t __user *oset);
1127#ifdef CONFIG_OLD_SIGSUSPEND
1128asmlinkage long sys_sigsuspend(old_sigset_t mask);
1129#endif
1130
1131#ifdef CONFIG_OLD_SIGSUSPEND3
1132asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1133#endif
1134
1135#ifdef CONFIG_OLD_SIGACTION
1136asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1137				struct old_sigaction __user *);
1138#endif
1139asmlinkage long sys_sgetmask(void);
1140asmlinkage long sys_ssetmask(int newmask);
1141asmlinkage long sys_signal(int sig, __sighandler_t handler);
1142
1143/* obsolete */
1144asmlinkage long sys_nice(int increment);
1145
1146/* obsolete */
1147asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1148				    unsigned long cmdline_len,
1149				    const char __user *cmdline_ptr,
1150				    unsigned long flags);
1151
1152/* obsolete */
1153asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1154
1155/* obsolete */
1156#ifdef CONFIG_HAVE_UID16
1157asmlinkage long sys_chown16(const char __user *filename,
1158				old_uid_t user, old_gid_t group);
1159asmlinkage long sys_lchown16(const char __user *filename,
1160				old_uid_t user, old_gid_t group);
1161asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1162asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1163asmlinkage long sys_setgid16(old_gid_t gid);
1164asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1165asmlinkage long sys_setuid16(old_uid_t uid);
1166asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1167asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1168				old_uid_t __user *euid, old_uid_t __user *suid);
1169asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1170asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1171				old_gid_t __user *egid, old_gid_t __user *sgid);
1172asmlinkage long sys_setfsuid16(old_uid_t uid);
1173asmlinkage long sys_setfsgid16(old_gid_t gid);
1174asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1175asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1176asmlinkage long sys_getuid16(void);
1177asmlinkage long sys_geteuid16(void);
1178asmlinkage long sys_getgid16(void);
1179asmlinkage long sys_getegid16(void);
1180#endif
1181
1182/* obsolete */
1183asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1184
1185/* obsolete */
1186asmlinkage long sys_stat(const char __user *filename,
1187			struct __old_kernel_stat __user *statbuf);
1188asmlinkage long sys_lstat(const char __user *filename,
1189			struct __old_kernel_stat __user *statbuf);
1190asmlinkage long sys_fstat(unsigned int fd,
1191			struct __old_kernel_stat __user *statbuf);
1192asmlinkage long sys_readlink(const char __user *path,
1193				char __user *buf, int bufsiz);
1194
1195/* obsolete */
1196asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1197
1198/* obsolete */
1199asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1200
1201/* obsolete */
1202asmlinkage long sys_gethostname(char __user *name, int len);
1203asmlinkage long sys_uname(struct old_utsname __user *);
1204asmlinkage long sys_olduname(struct oldold_utsname __user *);
1205#ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1206asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1207#endif
1208
1209/* obsolete */
1210asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1211		unsigned long third, void __user *ptr, long fifth);
1212
1213/* obsolete */
1214asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1215			unsigned long prot, unsigned long flags,
1216			unsigned long fd, unsigned long pgoff);
1217asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1218
1219
1220/*
1221 * Not a real system call, but a placeholder for syscalls which are
1222 * not implemented -- see kernel/sys_ni.c
1223 */
1224asmlinkage long sys_ni_syscall(void);
1225
1226#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1227
1228asmlinkage long sys_ni_posix_timers(void);
1229
1230/*
1231 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1232 * Instead, use one of the functions which work equivalently, such as
1233 * the ksys_xyzyyz() functions prototyped below.
1234 */
1235ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1236int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1237ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1238void ksys_sync(void);
1239int ksys_unshare(unsigned long unshare_flags);
1240int ksys_setsid(void);
1241int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1242			 unsigned int flags);
1243ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1244		     loff_t pos);
1245ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1246		      size_t count, loff_t pos);
1247int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1248#ifdef CONFIG_ADVISE_SYSCALLS
1249int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1250#else
1251static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1252				    int advice)
1253{
1254	return -EINVAL;
1255}
1256#endif
1257unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1258			      unsigned long prot, unsigned long flags,
1259			      unsigned long fd, unsigned long pgoff);
1260ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1261int ksys_ipc(unsigned int call, int first, unsigned long second,
1262	unsigned long third, void __user * ptr, long fifth);
1263int compat_ksys_ipc(u32 call, int first, int second,
1264	u32 third, u32 ptr, u32 fifth);
1265
1266/*
1267 * The following kernel syscall equivalents are just wrappers to fs-internal
1268 * functions. Therefore, provide stubs to be inlined at the callsites.
1269 */
1270extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1271		       gid_t group, int flag);
1272
1273static inline long ksys_chown(const char __user *filename, uid_t user,
1274			      gid_t group)
1275{
1276	return do_fchownat(AT_FDCWD, filename, user, group, 0);
1277}
1278
1279static inline long ksys_lchown(const char __user *filename, uid_t user,
1280			       gid_t group)
1281{
1282	return do_fchownat(AT_FDCWD, filename, user, group,
1283			     AT_SYMLINK_NOFOLLOW);
1284}
1285
1286int do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1287
1288static inline long ksys_ftruncate(unsigned int fd, loff_t length)
1289{
1290	return do_sys_ftruncate(fd, length, 1);
1291}
1292
1293int do_sys_truncate(const char __user *pathname, loff_t length);
1294
1295static inline long ksys_truncate(const char __user *pathname, loff_t length)
1296{
1297	return do_sys_truncate(pathname, length);
1298}
1299
1300static inline unsigned int ksys_personality(unsigned int personality)
1301{
1302	unsigned int old = current->personality;
1303
1304	if (personality != 0xffffffff)
1305		set_personality(personality);
1306
1307	return old;
1308}
1309
1310/* for __ARCH_WANT_SYS_IPC */
1311long ksys_semtimedop(int semid, struct sembuf __user *tsops,
1312		     unsigned int nsops,
1313		     const struct __kernel_timespec __user *timeout);
1314long ksys_semget(key_t key, int nsems, int semflg);
1315long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
1316long ksys_msgget(key_t key, int msgflg);
1317long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
1318long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1319		 long msgtyp, int msgflg);
1320long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1321		 int msgflg);
1322long ksys_shmget(key_t key, size_t size, int shmflg);
1323long ksys_shmdt(char __user *shmaddr);
1324long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
1325long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
1326			    unsigned int nsops,
1327			    const struct old_timespec32 __user *timeout);
1328long __do_semtimedop(int semid, struct sembuf *tsems, unsigned int nsops,
1329		     const struct timespec64 *timeout,
1330		     struct ipc_namespace *ns);
1331
1332int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
1333		int __user *optlen);
1334int __sys_setsockopt(int fd, int level, int optname, char __user *optval,
1335		int optlen);
1336#endif