get_thread_area(2) -- Linux man page

 

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_info 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

EINVAL
u_info->entry_number is out of bounds.
EFAULT
u_info is an invalid pointer.

 

CONFORMING TO

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

 

AVAILABILITY

A version of get_thread_area first appeared in Linux 2.5.32.

 

SEE ALSO

set_thread_area(2), modify_ldt(2)