void normalizeInstructionInSubTree(SgNode* topNode ){
vector<SgAsmx86Instruction*> insns;
FindInstructionsVisitor vis;
AstQueryNamespace::querySubTree(topNode, std::bind2nd( vis, &insns ));
for(std::vector<SgAsmx86Instruction*>::iterator iItr = insns.begin(); iItr != insns.end();
++iItr)
{
SgAsmx86Instruction* insn = *iItr;
SgAsmExpressionPtrList& operands = getOperands(insn);
// Add to total for this variant
// Add to total for each kind of operand
size_t operandCount = operands.size();
for (size_t i = 0; i < operandCount; ++i) {
SgAsmExpression* operand = operands[i];
SgAsmExpression* newOperand;
if( isSgAsmMemoryReferenceExpression(operand) )
{
SgAsmMemoryReferenceExpression* memRefExp = new SgAsmMemoryReferenceExpression;
SgAsmWordValueExpression* wordVal = new SgAsmWordValueExpression;
wordVal->set_value(0);
memRefExp->set_segment(wordVal);
memRefExp->set_address(wordVal);
memRefExp->set_type(new SgAsmTypeWord);
newOperand = memRefExp;
}else if(isSgAsmRegisterReferenceExpression(operand) ){
SgAsmx86RegisterReferenceExpression* regRef = new SgAsmx86RegisterReferenceExpression;
regRef->get_descriptor().set_major(x86_regclass_mm);
regRef->get_descriptor().set_minor(0);
newOperand = regRef;
}else{
SgAsmWordValueExpression* wordVal = new SgAsmWordValueExpression;
wordVal->set_value(0);
newOperand = wordVal;
}
newOperand->set_parent(operand->get_parent());
DeleteSgTree(operands[i]);
operands[i]=newOperand;
}
//std::cout << "Unparsed: " <<unparseX86Instruction(insn)<< std::endl;
}
};
SgAsmMemoryReferenceExpression* makeMemoryReference(SgAsmExpression* addr, SgAsmExpression* segment, SgAsmType* t) {
SgAsmMemoryReferenceExpression* r = new SgAsmMemoryReferenceExpression(addr);
addr->set_parent(r);
if (segment) {
r->set_segment(segment);
segment->set_parent(r);
}
if (t) r->set_type(t);
return r;
}
/****************************************************
* create a BinaryNode
****************************************************/
SgAsmExpression* RoseBin_IDAPRO_buildTree::convertBinaryNode(exprTreeType* expt,
list<SgAsmExpression*> *children,
const string& typeOfOperandIn) {
string typeOfOperand = typeOfOperandIn;
SgAsmExpression* binNode=NULL;
int sizeOfList = children->size();
bool isLeaf = false;
if (sizeOfList==0)
isLeaf = true;
if (RoseBin_support::DEBUG_MODE()) {
ostringstream addrhex;
addrhex << hex << setw(8) << expt->immediate ;
cout << "\n>> convert binNode: expr_id: " << expt->id << endl;
cout << " isLeaf: " << RoseBin_support::resBool(isLeaf) <<
" symbol: " << expt->symbol <<
" immedi: " << expt->immediate << " hex: " << addrhex.str() << endl;
}
if (expt->expr_type==4) {
// this is a operator
if (RoseBin_support::DEBUG_MODE())
cout << " its a operator ... " << expt->symbol << endl;
string symbol = RoseBin_support::str_to_upper(expt->symbol);
if (symbol=="CS" || symbol=="DS" || symbol=="SS" || symbol=="ES"
|| symbol == "FS" || symbol=="GS") {
// we need the child information to build this
if (sizeOfList!=1) {
//cerr << " a reference expression can only take one child! " <<endl;
list<SgAsmExpression*>::iterator childList = children->begin();
for (; childList!=children->end();++childList) {
SgAsmExpression* child = *childList;
exprTreeType exprTree = debugHelpMap[child];
//cout << " children are : " << child << " -- " << exprTree.symbol << endl;
}
abort();
}
SgAsmExpression* child = *(children->begin());
ROSE_ASSERT(RoseAssemblyLanguage==x86);
RegisterDescriptor regDesc;
resolveRegisterX86(symbol, ®Desc);
if (isSgAsmMemoryReferenceExpression(child)) {
binNode = new SgAsmx86RegisterReferenceExpression(regDesc);
isSgAsmx86RegisterReferenceExpression(binNode)->set_type(getRegisterType(regDesc));
isSgAsmMemoryReferenceExpression(child)->set_segment(binNode);
binNode->set_parent(child);
binNode=child;
} else {
binNode = child;
// do nothing
// if we have a jump case, we have a value only and no RegRef
}
#if 0
// resolve the register information
if (RoseAssemblyLanguage==x86) {
SgAsmRegisterReferenceExpression::x86_register_enum registerSg =
SgAsmRegisterReferenceExpression::undefined_general_register;
SgAsmRegisterReferenceExpression::x86_position_in_register_enum regSize =
SgAsmRegisterReferenceExpression::undefined_position_in_register;
resolveRegisterX86(symbol, ®isterSg, ®Size);
// binNode = new SgAsmRegisterReferenceExpression(registerSg, regSize);
binNode = new SgAsmRegisterReferenceExpression();
(isSgAsmRegisterReferenceExpression(binNode))->set_x86_register_code(registerSg);
(isSgAsmRegisterReferenceExpression(binNode))->set_x86_position_in_register_code(regSize);
} else if (RoseAssemblyLanguage==arm) {
SgAsmRegisterReferenceExpression::arm_register_enum registerSg =
SgAsmRegisterReferenceExpression::undefined_arm_register;
SgAsmRegisterReferenceExpression::arm_position_in_register_enum regSize =
SgAsmRegisterReferenceExpression::undefined_arm_position_in_register;
resolveRegisterX86(symbol, ®isterSg, ®Size);
// binNode = new SgAsmRegisterReferenceExpression(registerSg, regSize);
binNode = new SgAsmRegisterReferenceExpression();
(isSgAsmRegisterReferenceExpression(binNode))->set_arm_register_code(registerSg);
(isSgAsmRegisterReferenceExpression(binNode))->set_arm_position_in_register_code(regSize);
}
// the child could be the expression to an address, e.g. ss:[ebp]
// todo : dont know how to change this right now. Affected by AST structure change
//isSgAsmRegisterReferenceExpression(binNode)->set_segment(child);
rememberOffset = isSgAsmRegisterReferenceExpression(binNode);
if (child==NULL) {
cerr << "adding no child to RegisterReference " << endl;
}
child->set_parent(binNode);
#endif
}
else if (expt->symbol=="+") {
list<SgAsmExpression*>::iterator childList = children->begin();
int count=0;
if (children->size()==1) {
// the add has only one child
SgAsmExpression* child = *(children->begin());
if (child) {
binNode = child;
// child->set_parent(previousExp);
// if (isSgAsmMemoryReferenceExpression(previousExp))
// isSgAsmMemoryReferenceExpression(previousExp)->set_address(child);
// changed on 16Jan08
//if (isSgAsmRegisterReferenceExpression(previousExp))
// isSgAsmRegisterReferenceExpression(previousExp)->set_offset(child);
}
} else {
binNode = new SgAsmBinaryAdd();
for (; childList!=children->end();++childList) {
SgAsmExpression* child = *childList;
if (child) {
if (count==0)
isSgAsmBinaryAdd(binNode)->set_lhs(child);
else
isSgAsmBinaryAdd(binNode)->set_rhs(child);
child->set_parent(binNode);
}
count++;
}
}
}
else if (expt->symbol=="-") {
binNode = new SgAsmBinarySubtract();
list<SgAsmExpression*>::iterator childList = children->begin();
int count=0;
for (; childList!=children->end();++childList) {
SgAsmExpression* child = *childList;
if (count==0)
isSgAsmBinarySubtract(binNode)->set_lhs(child);
else
isSgAsmBinarySubtract(binNode)->set_rhs(child);
count++;
child->set_parent(binNode);
}
}
else if (expt->symbol=="*") {
binNode = new SgAsmBinaryMultiply();
list<SgAsmExpression*>::iterator childList = children->begin();
int count=0;
for (; childList!=children->end();++childList) {
SgAsmExpression* child = *childList;
if (count==0)
isSgAsmBinaryMultiply(binNode)->set_lhs(child);
else
isSgAsmBinaryMultiply(binNode)->set_rhs(child);
count++;
child->set_parent(binNode);
}
}
else if (expt->symbol=="/") {
binNode = new SgAsmBinaryDivide();
list<SgAsmExpression*>::iterator childList = children->begin();
int count=0;
for (; childList!=children->end();++childList) {
SgAsmExpression* child = *childList;
if (count==0)
isSgAsmBinaryDivide(binNode)->set_lhs(child);
else
isSgAsmBinaryDivide(binNode)->set_rhs(child);
count++;
child->set_parent(binNode);
}
}
else if (expt->symbol=="[") {
// the child is the expression that constitutes the address , e.g. [ebp]
SgAsmExpression* child = *(children->begin());
// the child is another expression, like +, - , ...
ROSE_ASSERT(child);
binNode = new SgAsmMemoryReferenceExpression();
isSgAsmMemoryReferenceExpression(binNode)->set_type(SgAsmTypeQuadWord::createType());
ROSE_ASSERT (binNode->get_type());
isSgAsmMemoryReferenceExpression(binNode)->set_address(child);
child->set_parent(binNode);
// isSgAsmMemoryReferenceExpression(binNode)->set_offset(rememberOffset);
//rememberOffset->set_parent(binNode);
//rememberOffset=NULL;
}
else if (expt->symbol=="b4" || expt->symbol=="b2" || expt->symbol=="b1" || expt->symbol=="b6" || expt->symbol=="b8") {
// since b4, b2, b1 are types and no nodes,
// we return the binNode of the child
binNode = *(children->begin());
if (isSgAsmMemoryReferenceExpression(binNode)) {
SgAsmMemoryReferenceExpression* memRefT = isSgAsmMemoryReferenceExpression(binNode);
if (expt->symbol=="b1")
memRefT->set_type(SgAsmTypeByte::createType());
else if (expt->symbol=="b2")
memRefT->set_type(SgAsmTypeWord::createType());
else if (expt->symbol=="b4")
memRefT->set_type(SgAsmTypeDoubleWord::createType());
else if (expt->symbol=="b6")
memRefT->set_type(SgAsmTypeByte::createType()); // FIXME
else if (expt->symbol=="b8")
memRefT->set_type(SgAsmTypeQuadWord::createType());
ROSE_ASSERT (memRefT->get_type());
}
}
else {
cerr << "ERROR:: FIXME:: symbol not resolved " << expt->symbol << endl;
// temp solution for arm. tps (09/17/07)
binNode = new SgAsmIntegerValueExpression('5', 8); // ascii for 5
// exit(0);
}
}
else if (expt->expr_type==2) {
// its a value
if (RoseBin_support::DEBUG_MODE())
cout << " its a value... resolving type: --- " << typeOfOperand << " --- " ;
// fixme .. temporary fix for DB issue
if (typeOfOperand=="BYTE") typeOfOperand="WORD";
if (typeOfOperand=="WORD") typeOfOperand="DWORD";
if (typeOfOperand=="BYTE") {
binNode = SageBuilderAsm::makeByteValue(expt->immediate);
} else
if (typeOfOperand=="WORD") {
binNode = SageBuilderAsm::makeWordValue(expt->immediate);
} else
if (typeOfOperand=="DWORD") {
binNode = SageBuilderAsm::makeDWordValue(expt->immediate);
} else
if (typeOfOperand=="QWORD") {
binNode = SageBuilderAsm::makeQWordValue(expt->immediate);
} else
if (typeOfOperand=="SFLOAT") {
binNode = new SgAsmSingleFloatValueExpression();
isSgAsmSingleFloatValueExpression(binNode)->set_value(expt->immediate);
} else
if (typeOfOperand=="DFLOAT") {
binNode = SageBuilderAsm::makeQWordValue(expt->immediate);
} else {
cerr << "ERROR :: unhandled type of value: " << typeOfOperand << " val: " <<
RoseBin_support::ToString(expt->immediate) << endl;
// exit(0);
// creating defualt for now
binNode = SageBuilderAsm::makeDWordValue(expt->immediate);
}
if (RoseBin_support::DEBUG_MODE())
cout << typeOfOperand << endl;
//printExprNode(*expt);
}
else if (expt->expr_type==1) {
// register
if (RoseBin_support::DEBUG_MODE())
cout << " its a register .... " << endl;
if (RoseAssemblyLanguage==x86) {
RegisterDescriptor regDesc;
string symbol = RoseBin_support::str_to_upper(expt->symbol);
resolveRegisterX86(symbol, ®Desc);
//binNode = new SgAsmRegisterReferenceExpression(registerSg, regSize);
binNode = new SgAsmx86RegisterReferenceExpression(regDesc);
isSgAsmx86RegisterReferenceExpression(binNode)->set_type(getRegisterType(regDesc));
} else if (RoseAssemblyLanguage==arm) {
RegisterDescriptor regDesc;
string symbol = RoseBin_support::str_to_upper(expt->symbol);
resolveRegisterX86(symbol, ®Desc);
// binNode = new SgAsmRegisterReferenceExpression(registerSg, regSize);
binNode = new SgAsmArmRegisterReferenceExpression(regDesc);
// todo : find out types for ARM
}
} else {
cerr << " ERROR ... buildTree ... wrong type " << endl;
RoseBin_support::printExprNode(*expt);
exit(0);
}
return binNode;
}
