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