def METHOD_NAME(pc):
    foo = get_module_offset(pc)
    if foo:
        (module_name, module_offset) = foo
        if "xmllint" in module_name:
            outp = sp.check_output(("addr2line -e %s 0x%x" % (xmllint, module_offset)).split())
        if "libxml" in module_name:
            outp = sp.check_output(("addr2line -e %s 0x%x" % (libxml, module_offset)).split())
        if not (outp == "??:0"):
            return outp.decode().rstrip()
    return None