bool
PatchBlock::containsDynamicCall() {
const ParseAPI::Block::edgelist & out_edges = block_->targets();
ParseAPI::Block::edgelist::const_iterator eit = out_edges.begin();
for( ; eit != out_edges.end(); ++eit) {
if ( ParseAPI::CALL == (*eit)->type() ) {
// see if it's a static call to a bad address
if ((*eit)->sinkEdge()) {
using namespace InstructionAPI;
Instruction::Ptr insn = getInsn(last());
if (insn->readsMemory()) { // memory indirect
return true;
} else { // check for register indirect
set<InstructionAST::Ptr> regs;
Expression::Ptr tExpr = insn->getControlFlowTarget();
if (tExpr)
tExpr->getUses(regs);
for (set<InstructionAST::Ptr>::iterator rit = regs.begin();
rit != regs.end(); rit++)
{
if (RegisterAST::makePC(obj()->co()->cs()->getArch()).getID() !=
boost::dynamic_pointer_cast<RegisterAST>(*rit)->getID())
{
return true;
}
}
}
}
}
}
return false;
}
