get_thread_area

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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);


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)



Linux 2.5.32			  2003-02-21		   GET_THREAD_AREA(2)