| .\" Copyright 1995 Michael Chastain (mec@shell.portal.com), 15 April 1995. |
| .\" |
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| .\" Updated, aeb, 980612 |
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| .TH UNIMPLEMENTED 2 2017-09-15 "Linux" "Linux Programmer's Manual" |
| .SH NAME |
| 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 |
| .SH SYNOPSIS |
| Unimplemented system calls. |
| .SH DESCRIPTION |
| These system calls are not implemented in the Linux kernel. |
| .SH RETURN VALUE |
| These system calls always return \-1 and set |
| .I errno |
| to |
| .BR ENOSYS . |
| .SH NOTES |
| Note that |
| .BR ftime (3), |
| .BR profil (3), |
| and |
| .BR ulimit (3) |
| are implemented as library functions. |
| .PP |
| Some system calls, like |
| .BR alloc_hugepages (2), |
| .BR free_hugepages (2), |
| .BR ioperm (2), |
| .BR iopl (2), |
| and |
| .BR vm86 (2) |
| exist only on certain architectures. |
| .PP |
| Some system calls, like |
| .BR ipc (2), |
| .BR create_module (2), |
| .BR init_module (2), |
| and |
| .BR delete_module (2) |
| exist only when the Linux kernel was built with support for them. |
| .SH SEE ALSO |
| .BR syscalls (2) |