Method ParseSymbolTable

view/macho/machoview.cpp:2959–3177

void MachoView::ParseSymbolTable(BinaryReader& reader, MachOHeader& header, const symtab_command& symtab, const vector<uint32_t>& indirectSymbols)
{
	if (header.ident.filetype == MH_DSYM)
	{
		m_logger->LogDebug("Skipping symbol parsing");
		return;
	}

	try
	{
		//First parse the imports
		if (header.dyldInfoPresent)
		{
			m_logger->LogDebug("Bind symbols");
			ParseDynamicTable(reader, header, ImportAddressSymbol, header.dyldInfo.bind_off,
					  header.dyldInfo.bind_size, GlobalBinding);
			m_logger->LogDebug("Weak symbols");
			ParseDynamicTable(reader, header, ImportAddressSymbol, header.dyldInfo.weak_bind_off,
					  header.dyldInfo.weak_bind_size, WeakBinding);
			m_logger->LogDebug("Lazy symbols");
			ParseDynamicTable(reader, header, ImportAddressSymbol, header.dyldInfo.lazy_bind_off,
					  header.dyldInfo.lazy_bind_size, GlobalBinding);
			m_logger->LogDebug("Parsing rebase table");
			ParseRebaseTable(reader, header, header.dyldInfo.rebase_off, header.dyldInfo.rebase_size);
		}
		if (header.chainedFixupsPresent)
		{
			m_logger->LogDebug("Chained Fixups");
			ParseChainedFixups(header, header.chainedFixups);
		}
		else if (header.chainStartsPresent)
		{
			m_logger->LogDebug("Chained Starts");
			ParseChainedStarts(header, header.chainStarts);
		}
		if (header.exportTriePresent && header.isMainHeader)
			ParseExportTrie(reader, header.exportTrie);

		//Then process the symtab
		if (header.stringListSize == 0)
			return;
		reader.Seek(symtab.symoff);

		unordered_map<size_t, vector<std::pair<section_64*, size_t>>> stubSymbols;
		for (auto& symbolStubs : header.symbolStubSections)
		{
			if (!symbolStubs.reserved2)
				continue;

			size_t needed = symbolStubs.size / symbolStubs.reserved2;
			for (size_t j = 0; (j < needed) && ((j + symbolStubs.reserved1) < indirectSymbols.size()); j++)
			{
				auto symNum = indirectSymbols[j + symbolStubs.reserved1];
				if (symNum == INDIRECT_SYMBOL_ABS)
					continue;
				else if (symNum == INDIRECT_SYMBOL_LOCAL)
					continue;