st.err.Errorf(s, "unreachable sym in relocation: %s", ldr.SymName(rs))
		}

		var rv sym.RelocVariant
		if target.IsPPC64() || target.IsS390X() {
			rv = ldr.RelocVariant(s, ri)
		}

		// TODO(mundaym): remove this special case - see issue 14218.
		if target.IsS390X() {
			switch rt {
			case objabi.R_PCRELDBL:
				rt = objabi.R_PCREL