@Override
	public Address getElfSymbolAddress(ElfSymbol elfSymbol) {
		return symbolMap.get(elfSymbol);
	}
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