public int countIndirectBranches() {
int res = 0;
for (Map.Entry<AbsoluteAddress, Instruction> entry : assemblyMap.entrySet()) {
Instruction instr = entry.getValue();
if (instr instanceof BranchInstruction) {
BranchInstruction branch = (BranchInstruction) instr;
if (branch.isIndirect()) {
// if branch target is not a memory operand pointing into a static data area of the binary
// (imports)
if (branch.getBranchDestination() instanceof MemoryOperand) {
MemoryOperand memOp = (MemoryOperand) branch.getBranchDestination();
// Import calls have only displacement
if (memOp.getBase() == null && memOp.getIndex() == null) {
AbsoluteAddress disp = new AbsoluteAddress(memOp.getDisplacement());
// Check whether displacement points into import table
ExecutableImage module = getModule(disp);
if (module instanceof PEModule
&& ((PEModule) module).getImportTable().containsKey(disp)) continue;
}
}
res++;
// logger.verbose(entry.getKey() + "\t" + getInstructionString(entry.getKey()));
}
}
}
return res;
}
public LinkedList<BranchInstruction> getIndirectBranches() {
LinkedList<BranchInstruction> indirectBranches = new LinkedList<BranchInstruction>();
for (Map.Entry<AbsoluteAddress, Instruction> entry : assemblyMap.entrySet()) {
Instruction instr = entry.getValue();
if (instr instanceof BranchInstruction) {
BranchInstruction branch = (BranchInstruction) instr;
if (branch.isIndirect()) {
indirectBranches.add(branch);
}
}
}
return indirectBranches;
}
