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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

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       description  of  the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.