https://bugzilla.redhat.com/show_bug.cgi?id=1460254
--- Comment #4 from Carlos O'Donell codonell@redhat.com --- (In reply to Carlos O'Donell from comment #3)
if sect.name == ".debug_str" && sym.name == "L0^A" && sym.type_ == 0 { ... ignore the symbol }
Not that the ^ is actually <U0001>.
DJ Delorie just told me that binutils uses ^A in temporary symbols which are supposed to filled in later. I assume that what's going on here is that s390x is missing some of the generic processing hooks to turn these 3 temporary symbols into the appropriate symbols. So someone IMO will have to look at the s390x backend to see what's missing.