Section 2: System Calls
Section 2 of the manual describes the Linux system calls. A system call is an entry point into the Linux kernel. intro(2)
A B C D E F G I K L M N O P Q R S T U V W _
A
accept4(2) accept(2) access(2) acct(2) acl(2) add_key(2) adjtimex(2) afs_syscall(2) alarm(2) alloc_hugepages(2) arch_prctl(2) arm_fadvise64_64(2) arm_fadvise(2) arm_sync_file_range(2)B
bdflush(2) bind(2) bpf(2) break(2) brk(2)C
cacheflush(2) capget(2) capset(2) chdir(2) chmod(2) chown32(2) chown(2) chroot(2) clock_getres(2) clock_gettime(2) clock_nanosleep(2) clock_settime(2) clone2(2) clone(2) close(2) connect(2) creat(2) create_module(2)D
delete_module(2) dup2(2) dup3(2) dup(2)E
epoll_create1(2) epoll_create(2) epoll_ctl(2) epoll_pwait(2) epoll_wait(2) eventfd2(2) eventfd(2) execve(2) execveat(2) exit(2) exit_group(2)F
faccessat(2) facl(2) fadvise64(2) fadvise64_64(2) fallocate(2) fanotify_init(2) fanotify_mark(2) fattach(2) fchdir(2) fchmod(2) fchmodat(2) fchown32(2) fchown(2) fchownat(2) fcntl64(2) fcntl(2) fdatasync(2) fdetach(2) fgetxattr(2) finit_module(2) flistxattr(2) flock(2) fork(2) free_hugepages(2) fremovexattr(2) fsetxattr(2) fstat64(2) fstat(2) fstatat64(2) fstatat(2) fstatfs64(2) fstatfs(2) fstatvfs(2) fsync(2) ftruncate64(2) ftruncate(2) futex(2) futimesat(2)G
getcontext(2) getcpu(2) getcwd(2) getdents64(2) getdents(2) getdomainname(2) getdtablesize(2) getegid32(2) getegid(2) geteuid32(2) geteuid(2) getgid32(2) getgid(2) getgroups32(2) getgroups(2) gethostid(2) gethostname(2) getitimer(2) getmsg(2) getpagesize(2) getpeername(2) getpgid(2) getpgrp(2) getpid(2) getpmsg(2) getppid(2) getpriority(2) getrandom(2) getresgid32(2) getresgid(2) getresuid32(2) getresuid(2) getrlimit(2) getrusage(2) getsid(2) getsockname(2) getsockopt(2) gettid(2) gettimeofday(2) getuid32(2) getuid(2) getunwind(2) getxattr(2) get_kernel_syms(2) get_mempolicy(2) get_robust_list(2) get_thread_area(2) gtty(2)I
idle(2) inb(2) inb_p(2) init_module(2) inl(2) inl_p(2) inotify_add_watch(2) inotify_init1(2) inotify_init(2) inotify_rm_watch(2) insb(2) insl(2) insw(2) intro(2) inw(2) inw_p(2) ioctl(2) ioctl_fat(2) ioctl_list(2) ioperm(2) iopl(2) ioprio_get(2) ioprio_set(2) io_cancel(2) io_destroy(2) io_getevents(2) io_setup(2) io_submit(2) ipc(2) isastream(2)K
kcmp(2) kexec_file_load(2) kexec_load(2) keyctl(2) kill(2) killpg(2)L
lchown32(2) lchown(2) lgetxattr(2) link(2) linkat(2) listen(2) listxattr(2) llistxattr(2) llseek(2) lock(2) lookup_dcookie(2) lremovexattr(2) lseek(2) lsetxattr(2) lstat64(2) lstat(2)M
madvise1(2) madvise(2) mbind(2) memfd_create(2) migrate_pages(2) mincore(2) mkdir(2) mkdirat(2) mknod(2) mknodat(2) mlock(2) mlockall(2) mmap2(2) mmap(2) modify_ldt(2) mount(2) move_pages(2) mprotect(2) mpx(2) mq_getsetattr(2) mq_notify(2) mq_open(2) mq_timedreceive(2) mq_timedsend(2) mq_unlink(2) mremap(2) msgctl(2) msgget(2) msgop(2) msgrcv(2) msgsnd(2) msync(2) munlock(2) munlockall(2) munmap(2)N
name_to_handle_at(2) nanosleep(2) newfstatat(2) nfsservctl(2) nice(2)O
obsolete(2) oldfstat(2) oldlstat(2) oldolduname(2) oldstat(2) olduname(2) open(2) openat(2) open_by_handle_at(2) outb(2) outb_p(2) outl(2) outl_p(2) outsb(2) outsl(2) outsw(2) outw(2) outw_p(2)P
pause(2) pciconfig_iobase(2) pciconfig_read(2) pciconfig_write(2) perfmonctl(2) perf_event_open(2) personality(2) phys(2) pipe2(2) pipe(2) pivot_root(2) poll(2) posix_fadvise(2) ppoll(2) prctl(2) pread64(2) pread(2) preadv(2) prlimit64(2) prlimit(2) process_vm_readv(2) process_vm_writev(2) prof(2) pselect6(2) pselect(2) ptrace(2) putmsg(2) putpmsg(2) pwrite64(2) pwrite(2) pwritev(2)Q
query_module(2) quotactl(2)R
read(2) readahead(2) readdir(2) readlink(2) readlinkat(2) readv(2) reboot(2) recv(2) recvfrom(2) recvmmsg(2) recvmsg(2) remap_file_pages(2) removexattr(2) rename(2) renameat2(2) renameat(2) request_key(2) restart_syscall(2) rmdir(2) rt_sigaction(2) rt_sigpending(2) rt_sigprocmask(2) rt_sigqueueinfo(2) rt_sigreturn(2) rt_sigsuspend(2) rt_sigtimedwait(2) rt_tgsigqueueinfo(2)S
s390_pci_mmio_read(2) s390_pci_mmio_write(2) s390_runtime_instr(2) sbrk(2) sched_getaffinity(2) sched_getattr(2) sched_getparam(2) sched_getscheduler(2) sched_get_priority_max(2) sched_get_priority_min(2) sched_rr_get_interval(2) sched_setaffinity(2) sched_setattr(2) sched_setparam(2) sched_setscheduler(2) sched_yield(2) seccomp(2) security(2) select(2) select_tut(2) semctl(2) semget(2) semop(2) semtimedop(2) send(2) sendfile64(2) sendfile(2) sendmmsg(2) sendmsg(2) sendto(2) setcontext(2) setdomainname(2) setegid(2) seteuid(2) setfsgid32(2) setfsgid(2) setfsuid32(2) setfsuid(2) setgid32(2) setgid(2) setgroups32(2) setgroups(2) sethostid(2) sethostname(2) setitimer(2) setns(2) setpgid(2) setpgrp(2) setpriority(2) setregid32(2) setregid(2) setresgid32(2) setresgid(2) setresuid32(2) setresuid(2) setreuid32(2) setreuid(2) setrlimit(2) setsid(2) setsockopt(2) settimeofday(2) setuid32(2) setuid(2) setup(2) setxattr(2) set_mempolicy(2) set_robust_list(2) set_thread_area(2) set_tid_address(2) sgetmask(2) shmat(2) shmctl(2) shmdt(2) shmget(2) shmop(2) shutdown(2) sigaction(2) sigaltstack(2) sigblock(2) siggetmask(2) sigmask(2) signal(2) signalfd4(2) signalfd(2) sigpause(2) sigpending(2) sigprocmask(2) sigqueue(2) sigreturn(2) sigsetmask(2) sigsuspend(2) sigtimedwait(2) sigvec(2) sigwaitinfo(2) socket(2) socketcall(2) socketpair(2) splice(2) spu_create(2) spu_run(2) ssetmask(2) stat64(2) stat(2) statfs64(2) statfs(2) statvfs(2) stime(2) stty(2) subpage_prot(2) swapoff(2) swapon(2) symlink(2) symlinkat(2) sync(2) syncfs(2) sync_file_range2(2) sync_file_range(2) syscall(2) syscalls(2) sysctl(2) sysfs(2) sysinfo(2) syslog(2)T
tee(2) tgkill(2) time(2) timerfd_create(2) timerfd_gettime(2) timerfd_settime(2) timer_create(2) timer_delete(2) timer_getoverrun(2) timer_gettime(2) timer_settime(2) times(2) tkill(2) truncate64(2) truncate(2) tuxcall(2)U
ugetrlimit(2) umask(2) umount2(2) umount(2) uname(2) undocumented(2) unimplemented(2) unlink(2) unlinkat(2) unshare(2) uselib(2) ustat(2) utime(2) utimensat(2) utimes(2)V
vfork(2) vhangup(2) vm86(2) vm86old(2) vmsplice(2) vserver(2)W
waidpid(2) wait3(2) wait4(2) wait(2) waitid(2) waitpid(2) write(2) writev(2)_
_Exit(2) _llseek(2) _newselect(2) _syscall(2) _sysctl(2) __clone2(2)A B C D E F G I K L M N O P Q R S T U V W _