void TestIRBuilder::memReg(AnalysisProcessor &ap, Inst &inst) const {
SymbolicExpression *se;
smt2lib::smtAstAbstractNode *expr, *op1, *op2;
auto memSize = this->operands[0].getMem().getSize();
auto mem = this->operands[0].getMem();
auto reg = this->operands[1].getReg();
auto regSize = this->operands[1].getReg().getSize();
/* Create the SMT semantic */
op1 = ap.buildSymbolicMemOperand(mem, memSize);
op2 = ap.buildSymbolicRegOperand(reg, regSize);
// Final expr
expr = smt2lib::bvand(op1, op2);
/* Create the symbolic expression */
se = ap.createSE(inst, expr);
/* Apply the taint */
ap.assignmentSpreadTaintExprRegMem(se, reg, mem, memSize);
/* Add the symbolic flags expression to the current inst */
EflagsBuilder::clearFlag(inst, ap, ID_TMP_CF, "Clears carry flag");
EflagsBuilder::clearFlag(inst, ap, ID_TMP_OF, "Clears overflow flag");
EflagsBuilder::pf(inst, se, ap, memSize);
EflagsBuilder::sf(inst, se, ap, memSize);
EflagsBuilder::zf(inst, se, ap, memSize);
}
void TestIRBuilder::memReg(AnalysisProcessor &ap, Inst &inst) const {
SymbolicElement *se;
std::stringstream expr, op1, op2;
uint32 readSize = this->operands[0].getSize();
uint64 mem = this->operands[0].getValue();
uint64 reg = this->operands[1].getValue();
uint32 regSize = this->operands[1].getSize();
/* Create the SMT semantic */
op1 << ap.buildSymbolicMemOperand(mem, readSize);
op2 << ap.buildSymbolicRegOperand(reg, regSize);
// Final expr
expr << smt2lib::bvand(op1.str(), op2.str());
/* Create the symbolic element */
se = ap.createSE(inst, expr);
/* Apply the taint */
ap.assignmentSpreadTaintExprRegMem(se, reg, mem, readSize);
/* Add the symbolic flags element to the current inst */
EflagsBuilder::clearFlag(inst, ap, ID_CF, "Clears carry flag");
EflagsBuilder::clearFlag(inst, ap, ID_OF, "Clears overflow flag");
EflagsBuilder::pf(inst, se, ap);
EflagsBuilder::sf(inst, se, ap, readSize);
EflagsBuilder::zf(inst, se, ap, readSize);
}
void CmpIRBuilder::regMem(AnalysisProcessor &ap, Inst &inst) const {
SymbolicExpression *se;
smt2lib::smtAstAbstractNode *expr, *op1, *op2;
uint32 readSize = this->operands[1].getSize();
uint64 mem = this->operands[1].getValue();
uint64 reg = this->operands[0].getValue();
uint32 regSize = this->operands[0].getSize();
/* Create the SMT semantic */
op1 = ap.buildSymbolicRegOperand(reg, regSize);
op2 = ap.buildSymbolicMemOperand(mem, readSize);
/* Final expr */
expr = smt2lib::bvsub(op1, op2);
/* Create the symbolic expression */
se = ap.createSE(inst, expr);
/* Apply the taint */
ap.assignmentSpreadTaintExprRegMem(se, reg, mem, readSize);
/* Add the symbolic flags expression to the current inst */
EflagsBuilder::af(inst, se, ap, regSize, op1, op2);
EflagsBuilder::cfSub(inst, se, ap, op1, op2);
EflagsBuilder::ofSub(inst, se, ap, regSize, op1, op2);
EflagsBuilder::pf(inst, se, ap, regSize);
EflagsBuilder::sf(inst, se, ap, regSize);
EflagsBuilder::zf(inst, se, ap, regSize);
}
