public boolean isMissingRequiredSymbolTable() {
		if (symbolTable == null) {
			// relocTableSection is may only be null for dynamic relocation table which must
			// have a symbol table.  All other section-based relocation tables require a symbol
			// table if link != 0.  NOTE: There is the possibility that a symbol table is required
			// when link==0 which may result in relocation processing errors if it is missing.
			return relocTableSection == null || relocTableSection.getLink() != 0;
		}
		return false;
	}
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