rb_add_event_hook2   98 include/ruby/debug.h void rb_add_event_hook2(rb_event_hook_func_t func, rb_event_flag_t events, VALUE data, rb_event_hook_flag_t hook_flag);
rb_add_event_hook2 1021 vm_trace.c     	rb_add_event_hook2((rb_event_hook_func_t)tp_call_trace, tp->events, tpval,