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get_thread_area

man page of get_thread_area

get_thread_area: Get a Thread Local Storage (TLS) area

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

This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at //www.kernel.org/doc/man-pages/. GET_THREAD_AREA(2)
 
 
 

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