GNU/Linux man pages
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GNU/Linux |
Debian 6.0.5(Squeeze) |
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get_thread_area(2) |
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get_thread_area − Get a Thread Local Storage (TLS) area
#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_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 appropriately.
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EFAULT |
u_info is an invalid pointer. |
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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; call it using syscall(2).
modify_ldt(2), set_thread_area(2)
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 http://www.kernel.org/doc/man-pages/.
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get_thread_area(2) | |