get_backtrace_frame 3850 src/eval.c       union specbinding *pdl = get_backtrace_frame(level, Qnil);
get_backtrace_frame 3893 src/eval.c       return backtrace_frame_apply (function, get_backtrace_frame (nframes, base));
get_backtrace_frame 4048 src/eval.c       union specbinding *pdl = get_backtrace_frame (nframes, base);
get_backtrace_frame 4070 src/eval.c       union specbinding *frame = get_backtrace_frame (nframes, base);
get_backtrace_frame 4072 src/eval.c         = get_backtrace_frame (make_fixnum (XFIXNAT (nframes) - 1), base);