Linux 2.6 - man page for get_thread_area (linux section 2)
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GET_THREAD_AREA(2) Linux Programmer's Manual GET_THREAD_AREA(2)
get_thread_area - get a thread-local storage (TLS) area
int get_thread_area(struct user_desc *u_info);
Note: There is no glibc wrapper for this system call; see NOTES.
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.
get_thread_area() returns 0 on success. Otherwise, it returns -1 and sets errno appropri-
EFAULT u_info is an invalid pointer.
EINVAL u_info->entry_number is out of bounds.
A version of get_thread_area() first appeared in Linux 2.5.32.
get_thread_area() is Linux-specific and should not be used in programs that are intended
to be portable.
Glibc does not provide a wrapper for this system call, since it is generally intended for
use only by threading libraries. In the unlikely event that you want to call it directly,
This page is part of release 3.55 of the Linux man-pages project. A description of the
project, and information about reporting bugs, can be found at
Linux 2012-07-13 GET_THREAD_AREA(2)
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