previous_frame 964 eval.c rb_control_frame_t *prev_cfp = previous_frame(GET_THREAD()); previous_frame 972 eval.c rb_control_frame_t *prev_cfp = previous_frame(GET_THREAD()); previous_frame 1299 eval.c rb_control_frame_t *prev_cfp = previous_frame(GET_THREAD()); previous_frame 1439 eval.c rb_control_frame_t *prev_cfp = previous_frame(GET_THREAD());