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 function; call it using syscall(2).

SEE ALSO¶

modify_ldt(2), set_thread_area(2)

COLOPHON¶

This page is part of release 3.22 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.