get_thread_area(2)

1GET_THREAD_AREA(2)         Linux Programmer's Manual        GET_THREAD_AREA(2)
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NAME

6       get_thread_area - Get a Thread Local Storage (TLS) area
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SYNOPSIS

9       #include <linux/unistd.h>
10       #include <asm/ldt.h>
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12       int get_thread_area(struct user_desc *u_info);
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DESCRIPTION

16       get_thread_area() returns an entry in the current thread's Thread Local
17       Storage (TLS) array.  The index of the entry corresponds to  the  value
18       of  u_info->entry_number,  passed  in  by the user.  If the value is in
19       bounds, get_thread_info copies the corresponding  TLS  entry  into  the
20       area pointed to by u_info.
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RETURN VALUE

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

29       EFAULT u_info is an invalid pointer.
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31       EINVAL u_info->entry_number is out of bounds.
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CONFORMING TO

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

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