triton::uint128 x86Cpu::getLastMemoryValue(triton::arch::MemoryOperand& mem) {
triton::uint128 ret = 0;
triton::__uint addr = mem.getAddress();
triton::uint32 size = mem.getSize();
if (size == 0 || size > DQWORD_SIZE)
throw std::invalid_argument("x86Cpu::getLastMemoryValue(): Invalid size memory");
for (triton::sint32 i = size-1; i >= 0; i--)
ret = ((ret << BYTE_SIZE_BIT) | this->memory[addr+i]);
return ret;
}
void x86Cpu::setLastMemoryValue(triton::arch::MemoryOperand& mem) {
triton::__uint addr = mem.getAddress();
triton::uint32 size = mem.getSize();
triton::uint128 cv = mem.getConcreteValue();
if (size == 0 || size > DQWORD_SIZE)
throw std::invalid_argument("x86Cpu::setLastMemoryValue(): Invalid size memory");
for (triton::uint32 i = 0; i < size; i++) {
this->memory[addr+i] = static_cast<triton::uint8>(cv & 0xff);
cv >>= 8;
}
}
bool API::taintAssignmentMemoryRegister(const triton::arch::MemoryOperand& memDst, const triton::arch::RegisterOperand& regSrc) {
this->checkTaint();
bool flag = triton::engines::taint::UNTAINTED;
triton::__uint memAddrDst = memDst.getAddress();
triton::uint32 writeSize = memDst.getSize();
flag = this->taint->assignmentMemoryRegister(memDst, regSrc);
/* Taint each byte of reference expression */
for (triton::uint32 i = 0; i != writeSize; i++) {
triton::__uint byteId = this->getSymbolicMemoryId(memAddrDst + i);
if (byteId == triton::engines::symbolic::UNSET)
continue;
triton::engines::symbolic::SymbolicExpression* byte = this->getSymbolicExpressionFromId(byteId);
byte->isTainted = flag;
}
return flag;
}
