public Map<Integer, Integer> getAbsoluteOffsetsBySectionNumber()
			throws CancelledException, PdbException {
		try {
			PdbByteReader reader =
				pdb.getReaderForStreamNumber(streamNumber, sectionMapOffset, sectionMapLength);
			return deserializeSectionMap(reader);
		}
		catch (IOException e) {
			Msg.error(this, String.format(
				"PDB: Error creating absolute offsets by section number while reading stream %d offset %d and length %d",
				streamNumber, sectionMapOffset, sectionMapLength));
			return new HashMap<>();
		}
	}
Returns the Absolute Offsets by Section Number map
@return the map
@throws PdbException upon not enough data left to parse
@throws CancelledException upon user cancellation
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb2/pdbreader/PublicSymbolInformation.java