if (__set_thread_area(&main_thread) < 0) return -1;
main_thread.canceldisable = libc.canceldisable;
main_thread.tsd = (void **)__pthread_tsd_main;
main_thread.errno_ptr = __errno_location();
main_thread.self = &main_thread;
if (__set_thread_area(&main_thread) < 0) return -1;
main_thread.canceldisable = libc.canceldisable;
main_thread.tsd = (void **)__pthread_tsd_main;
main_thread.errno_ptr = __errno_location();
main_thread.self = &main_thread;