unimplemented(2) - Linux manual page (original) (raw)

UNIMPLEMENTED(2) System Calls Manual UNIMPLEMENTED(2)

NAME top

   afs_syscall, break, fattach, fdetach, ftime, getmsg, getpmsg,
   gtty, isastream, lock, madvise1, mpx, prof, profil, putmsg,
   putpmsg, security, stty, tuxcall, ulimit, vserver - unimplemented
   system calls

SYNOPSIS top

   Unimplemented system calls.

DESCRIPTION top

   These system calls are not implemented in the Linux kernel.

RETURN VALUE top

   These system calls always return -1 and set _[errno](../man3/errno.3.html)_ to **ENOSYS**.

NOTES top

   Note that [ftime(3)](../man3/ftime.3.html), [profil(3)](../man3/profil.3.html), and [ulimit(3)](../man3/ulimit.3.html) are implemented as
   library functions.

   Some system calls, like [alloc_hugepages(2)](../man2/alloc%5Fhugepages.2.html), [free_hugepages(2)](../man2/free%5Fhugepages.2.html),
   [ioperm(2)](../man2/ioperm.2.html), [iopl(2)](../man2/iopl.2.html), and [vm86(2)](../man2/vm86.2.html) exist only on certain
   architectures.

   Some system calls, like [ipc(2)](../man2/ipc.2.html), [create_module(2)](../man2/create%5Fmodule.2.html), [init_module(2)](../man2/init%5Fmodule.2.html),
   and [delete_module(2)](../man2/delete%5Fmodule.2.html) exist only when the Linux kernel was built
   with support for them.

SEE ALSO top

   [syscalls(2)](../man2/syscalls.2.html)

COLOPHON top

   This page is part of the _man-pages_ (Linux kernel and C library
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   man-pages@man7.org

Linux man-pages 6.10 2024-05-02 UNIMPLEMENTED(2)

Pages that refer to this page:ioctl(2), syscalls(2), systemd.exec(5)