/** Returns a list of parts of a single section that have been referenced. The offsets are relative to the start of the
* section. */
AddressIntervalSet
SgAsmGenericSection::get_referenced_extents() const
{
if (0==get_size())
return AddressIntervalSet();
AddressIntervalSet retval;
AddressInterval segment = AddressInterval::baseSize(get_offset(), get_size());
const AddressIntervalSet &fileExtents = get_file()->get_referenced_extents();
BOOST_FOREACH (const AddressInterval &interval, fileExtents.intervals()) {
if (segment.isContaining(interval)) {
retval.insert(AddressInterval::baseSize(interval.least()-get_offset(), interval.size()));
} else if (interval.isLeftOf(segment) || interval.isRightOf(segment)) {
// no overlap
} else if (interval.isContaining(segment)) {
retval.insert(AddressInterval::baseSize(0, get_size()));
break; // no point in continuing since we've referenced whole segment now
} else if (interval.least() < segment.least()) {
retval.insert(AddressInterval::baseSize(0, interval.least()+interval.size()-get_offset()));
} else if (interval.greatest() > segment.greatest()) {
retval.insert(AddressInterval::baseSize(interval.least()-get_offset(), get_offset()+get_size()-interval.least()));
} else {
ASSERT_not_reachable("invalid extent overlap category");
}
}
return retval;
}
void
CfgEmitter::selectInterval(const AddressInterval &interval) {
BOOST_FOREACH (const ControlFlowGraph::VertexNode &vertex, graph_.vertices()) {
if (vertex.value().type() == V_BASIC_BLOCK && interval.isContaining(vertex.value().address())) {
Organization &org = vertexOrganization(vertex);
org.select();
org.label(vertexLabelDetailed(vertex));
org.attributes(vertexAttributes(vertex));
}
}
BOOST_FOREACH (const ControlFlowGraph::EdgeNode &edge, graph_.edges()) {
if (vertexOrganization(edge.source()).isSelected() && vertexOrganization(edge.target()).isSelected()) {
Organization &org = edgeOrganization(edge);
if (!org.isSelected()) {
org.select();
org.label(edgeLabel(edge));
org.attributes(edgeAttributes(edge));
}
}
}
}