Linux manual pages Section 2  

Name

get_thread_area — Get a Thread Local Storage (TLS) area

Synopsis

#include <linux/unistd.h>
#include <asm/ldt.h>
int get_thread_area( struct user_desc *u_info);
 

DESCRIPTION

get_thread_area() returns an entry in the current thread's Thread Local Storage (TLS) array. The index of the entry corresponds to the value of u_info−>entry_number, passed in by the user. If the value is in bounds, get_thread_area() copies the corresponding TLS entry into the area pointed to by u_info.

RETURN VALUE

get_thread_area() returns 0 on success. Otherwise, it returns −1 and sets errno appropriately.

ERRORS

EFAULT

u_info is an invalid pointer.

EINVAL

u_info−>entry_number is out of bounds.

VERSIONS

A version of get_thread_area() first appeared in Linux 2.5.32.

CONFORMING TO

get_thread_area() is Linux-specific and should not be used in programs that are intended to be portable.

NOTES

Glibc does not provide a wrapper for this system call; call it using syscall(2).

SEE ALSO

modify_ldt(2), set_thread_area(2)

COLOPHON

This page is part of release 3.33 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://man7.org/linux/man-pages/.


  Copyright (C) 2003 Free Software Foundation, Inc.
This file is distributed according to the GNU General Public License.
See the file COPYING in the top level source directory for details.

Written by Kent Yoder.