1__p_class_syms
2__p_type_syms
3__progname
4__sF
5__stack_chk_guard
6__system_property_area__
7_ctype_
8daylight
9environ
10optarg
11opterr
12optind
13optopt
14optreset
15sys_siglist
16sys_signame
17timezone
18tzname
19