hidden int __clone(int (*)(void *), void *, int, void *, ...);
hidden int __set_thread_area(void *);
hidden int __libc_sigaction(int, const struct sigaction *, struct sigaction *);
hidden int __clone(int (*)(void *), void *, int, void *, ...);
hidden int __set_thread_area(void *);
hidden int __libc_sigaction(int, const struct sigaction *, struct sigaction *);