x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
GET_THREAD_AREA(2) Linux Programmer's Manual GET_THREAD_AREA(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);
Note: There is no glibc wrapper for this system call; see NOTES.
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, since it is gen-
erally intended for use only by threading libraries. In the unlikely
event that you want to call it directly, use syscall(2).
SEE ALSO
modify_ldt(2), set_thread_area(2)
COLOPHON
This page is part of release 3.69 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
http://www.kernel.org/doc/man-pages/.
Linux 2012-07-13 GET_THREAD_AREA(2)
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