@Override
	public void markAsCode(Address address) {
		// TODO: this should be in a common place, so all importers can communicate that something
		// is code or data.
		AddressSetPropertyMap codeProp = program.getAddressSetPropertyMap("CodeMap");
		if (codeProp == null) {
			try {
				codeProp = program.createAddressSetPropertyMap("CodeMap");
			}
			catch (DuplicateNameException e) {
				codeProp = program.getAddressSetPropertyMap("CodeMap");
			}
		}

		if (codeProp != null) {
			codeProp.add(address, address);
		}
	}
Find a specific named symbol within the fake EXTERNAL block.
NOTE: It is assumed that ELF will never produced duplicate names.
@param name symbol name
@param extMin EXTERNAL block minimum address
@param extMax EXTERNAL block maximum address
@return matching symbol or null if not found
Ghidra/Features/Base/src/main/java/ghidra/app/util/opinion/ElfProgramBuilder.java