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System Calls - Manual Reference Pages  - GET_THREAD_AREA (2)

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get_thread_area - Get a Thread Local Storage (TLS) area

CONTENTS

Errors
Availability

--> #include <linux/unistd.h> -->
#include <asm/ldt.h>

int get_thread_area(struct user_desc *u_info);

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.

get_thread_area() returns 0 on success. Otherwise, it returns -1 and sets errno appropriately.

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

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

A version of get_thread_area() first appeared in Linux 2.5.32.

modify_ldt(2), set_thread_area(2) or go to Top of page |  Section 2 |  Main Man Index.