774 def stamp_internal(taskname, d, file_name, baseonly=False, noextra=False):  argument
787     if file_name:
788         stamp = d.stamp[file_name]
789         extrainfo = d.stamp_extrainfo[file_name].get(taskflagname) or ""
792         file_name = d.getVar('BB_FILENAME')
803     stamp = bb.parse.siggen.stampfile(stamp, file_name, taskname, extrainfo)
811 def stamp_cleanmask_internal(taskname, d, file_name):  argument
823     if file_name:
824         stamp = d.stampclean[file_name]
825         extrainfo = d.stamp_extrainfo[file_name].get(taskflagname) or ""
828         file_name = d.getVar('BB_FILENAME')
834     cleanmask = bb.parse.siggen.stampcleanmask(stamp, file_name, taskname, extrainfo)
838 def clean_stamp(task, d, file_name = None):  argument
839     cleanmask = stamp_cleanmask_internal(task, d, file_name)
851 def make_stamp(task, d, file_name = None):  argument
856     clean_stamp(task, d, file_name)
858     stamp = stamp_internal(task, d, file_name)
867     if not task.endswith("_setscene") and task != "do_setscene" and not file_name:
869         file_name = d.getVar('BB_FILENAME')
870         bb.parse.siggen.dump_sigtask(file_name, task, stampbase, True)
872 def find_stale_stamps(task, d, file_name=None):  argument
873     current = stamp_internal(task, d, file_name)
874     current2 = stamp_internal(task + "_setscene", d, file_name)
875     cleanmask = stamp_cleanmask_internal(task, d, file_name)
889 def del_stamp(task, d, file_name = None):  argument
894     stamp = stamp_internal(task, d, file_name)
897 def write_taint(task, d, file_name = None):  argument
905     if file_name:
906         taintfn = d.stamp[file_name] + '.' + task + '.taint'
915 def stampfile(taskname, d, file_name = None, noextra=False):  argument
920     return stamp_internal(taskname, d, file_name, noextra=noextra)