private long addRelrEntry(long offset, List<ElfRelocation> relocList) throws IOException {
		relocList.add(ElfRelocation.createElfRelocation(elfHeader, relocList.size(),
			addendTypeReloc, offset, 0, 0));
		return offset + entrySize;
	}
Determine if required symbol table is missing.  If so, relocations may not be processed.
@return true if required symbol table is missing, else false
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/elf/ElfRelocationTable.java