rationale for bss patterns in default_section_type_flags ?

[Brett Porter]

> > Is there a rationale  for the list of bss patterns matched by
> > default_section_type_flags_1 ?
>
> That is how bss sections are named?!

Part of the question is "how bss sections are named" according
to evolution, or some crystal clear standard, or what ???

> > Would matching, say, ".bss" anywhere-in or at-the-end-of name be
> > appropriate?
>
> No, the standard is to be prefix based, this simplifies the impact on
> the linker scripts.

Ok. So a new category of bss sections could be matched by
"X.bss" or "X.bss."*.  Would that be reasonable?