Thread-local storage issue

Hi Guys,
 
I was in trouble for an issue of TLS implementation of FreeBSD.  It is
an issue of ld-elf.so actually.  If I have a thread-local variable in
program, the value of the variable is not consistent after an
dlopen().  For example,
 
__thread int var = 50;
 
void modify() {
     var = 100;
}
 
void show() {
     printf("%d\n", var);
}
 
int main(int argc, char * const *argv) {
    dlopen(...);
    modify();
    show();
}
 
If it is compiled with -fpic, it would print "50" while "100" is
expected. (-fpic is required for shared objects)
 
I have send-pr a patch as
 
	http://www.freebsd.org/cgi/query-pr.cgi?pr=160721
 
I need someone to review it.
Thanks!