Method InitializeHeader

view/macho/machoview.cpp:1550–2363

bool MachoView::InitializeHeader(MachOHeader& header, bool isMainHeader, uint64_t preferredImageBase,
	std::string preferredImageBaseDesc, bool platformSetByUser)
{
	Ref<Settings> settings = GetLoadSettings(GetTypeName());

	for (auto& i : header.segments)
		i.vmaddr += m_imageBaseAdjustment;

	for (auto& i : header.sections)
		i.addr += m_imageBaseAdjustment;

	for (auto& i : header.symbolStubSections)
		i.addr += m_imageBaseAdjustment;

	for (auto& i : header.symbolPointerSections)
		i.addr += m_imageBaseAdjustment;

	for (auto& entryPoint : header.entryPoints)
		entryPoint.first += (entryPoint.second ? 0 : m_imageBaseAdjustment);

	if (header.routinesPresent)
		header.routines64.init_address += m_imageBaseAdjustment;

	for (auto& segment : header.segments)
	{
		if ((segment.initprot == MACHO_VM_PROT_NONE) || (!segment.vmsize))
			continue;

		if ((segment.initprot & MACHO_VM_PROT_EXECUTE) == MACHO_VM_PROT_EXECUTE)
		{
			if ((segment.fileoff == (0 + m_universalImageOffset)) && (segment.filesize != 0))
				header.textBase = segment.vmaddr;
			for (auto& entryPoint : header.entryPoints)
			{
				uint64_t val = entryPoint.first + (entryPoint.second ? header.textBase : 0);
				if (find(header.m_entryPoints.begin(), header.m_entryPoints.end(), val) == header.m_entryPoints.end())
					header.m_entryPoints.push_back(val);
			}
		}
	}

	if (!(m_header.ident.filetype == MH_FILESET && isMainHeader)) \
	{
		BeginBulkAddSegments();
		for (auto &segment: header.segments) {
			if ((segment.initprot == MACHO_VM_PROT_NONE) || (!segment.vmsize))
				continue;

			uint32_t flags = 0;
			if (segment.initprot & MACHO_VM_PROT_READ)
				flags |= SegmentReadable;
			if (segment.initprot & MACHO_VM_PROT_WRITE)
				flags |= SegmentWritable;
			if (segment.initprot & MACHO_VM_PROT_EXECUTE)
				flags |= SegmentExecutable;
			if (((segment.initprot & MACHO_VM_PROT_WRITE) == 0) &&
			    ((segment.maxprot & MACHO_VM_PROT_WRITE) == 0))
				flags |= SegmentDenyWrite;