Leave more breadcrumbs for debuggers.
Reviewed-by: NBob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1490783578-6065-3-git-send-email-jani.nikula@intel.com