thread_start_func_2  166 thread.c       #define thread_start_func_2(th, st, rst) thread_start_func_2(th, st)
thread_start_func_2  351 thread_pthread.c 	thread_start_func_2(th, &stack_start, rb_ia64_bsp());
thread_start_func_2  468 thread_win32.c     thread_start_func_2(th, th->machine_stack_start, rb_ia64_bsp());