ruby_vm_at_exit    26 ext/-test-/vm/at_exit.c 	ruby_vm_at_exit(print_begin);
ruby_vm_at_exit    29 ext/-test-/vm/at_exit.c 	ruby_vm_at_exit(print_end);
ruby_vm_at_exit    32 ext/-test-/vm/at_exit.c 	ruby_vm_at_exit(do_nothing);
ruby_vm_at_exit    53 include/ruby/vm.h void ruby_vm_at_exit(void(*func)(ruby_vm_t *));