/// CreateGlobalVariable - Create a new descriptor for the specified global.
DIGlobalVariable
DIFactory::CreateGlobalVariable(DIDescriptor Context, const char * Name,
const char * DisplayName,
const char * LinkageName,
DICompileUnit CompileUnit,
unsigned LineNo, DIType Type,bool isLocalToUnit,
bool isDefinition, llvm::GlobalVariable *Val) {
Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_variable),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
Context.getNode(),
MDString::get(VMContext, Name),
MDString::get(VMContext, DisplayName),
MDString::get(VMContext, LinkageName),
CompileUnit.getNode(),
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
Type.getNode(),
ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
Val
};
Value *const *Vs = &Elts[0];
MDNode *Node = MDNode::get(VMContext,Vs, 12);
// Create a named metadata so that we do not lose this mdnode.
NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.gv");
NMD->addElement(Node);
return DIGlobalVariable(Node);
}
/// CreateBlock - This creates a descriptor for a lexical block with the
/// specified parent VMContext.
DILexicalBlock DIFactory::CreateLexicalBlock(DIDescriptor Context) {
Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_lexical_block),
Context.getNode()
};
return DILexicalBlock(MDNode::get(VMContext, &Elts[0], 2));
}
/// CreateCompositeType - Create a composite type like array, struct, etc.
DICompositeType DIFactory::CreateCompositeTypeEx(unsigned Tag,
DIDescriptor Context,
const char * Name,
DICompileUnit CompileUnit,
unsigned LineNumber,
Constant *SizeInBits,
Constant *AlignInBits,
Constant *OffsetInBits,
unsigned Flags,
DIType DerivedFrom,
DIArray Elements,
unsigned RuntimeLang) {
Value *Elts[] = {
GetTagConstant(Tag),
Context.getNode(),
MDString::get(VMContext, Name),
CompileUnit.getNode(),
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
SizeInBits,
AlignInBits,
OffsetInBits,
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
DerivedFrom.getNode(),
Elements.getNode(),
ConstantInt::get(Type::getInt32Ty(VMContext), RuntimeLang)
};
return DICompositeType(MDNode::get(VMContext, &Elts[0], 12));
}
/// replaceAllUsesWith - Replace all uses of debug info referenced by
/// this descriptor. After this completes, the current debug info value
/// is erased.
void DIDerivedType::replaceAllUsesWith(DIDescriptor &D) {
if (isNull())
return;
assert (!D.isNull() && "Can not replace with null");
// Since we use a TrackingVH for the node, its easy for clients to manufacture
// legitimate situations where they want to replaceAllUsesWith() on something
// which, due to uniquing, has merged with the source. We shield clients from
// this detail by allowing a value to be replaced with replaceAllUsesWith()
// itself.
if (getNode() != D.getNode()) {
MDNode *Node = DbgNode;
Node->replaceAllUsesWith(D.getNode());
delete Node;
}
}
/// CreateVariable - Create a new descriptor for the specified variable.
DIVariable DIFactory::CreateVariable(unsigned Tag, DIDescriptor Context,
const char * Name,
DICompileUnit CompileUnit, unsigned LineNo,
DIType Type) {
Value *Elts[] = {
GetTagConstant(Tag),
Context.getNode(),
MDString::get(VMContext, Name),
CompileUnit.getNode(),
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
Type.getNode(),
};
return DIVariable(MDNode::get(VMContext, &Elts[0], 6));
}
/// processType - Process DIType.
void DebugInfoFinder::processType(DIType DT) {
if (!addType(DT))
return;
addCompileUnit(DT.getCompileUnit());
if (DT.isCompositeType()) {
DICompositeType DCT(DT.getNode());
processType(DCT.getTypeDerivedFrom());
DIArray DA = DCT.getTypeArray();
if (!DA.isNull())
for (unsigned i = 0, e = DA.getNumElements(); i != e; ++i) {
DIDescriptor D = DA.getElement(i);
DIType TypeE = DIType(D.getNode());
if (!TypeE.isNull())
processType(TypeE);
else
processSubprogram(DISubprogram(D.getNode()));
}
} else if (DT.isDerivedType()) {
DIDerivedType DDT(DT.getNode());
if (!DDT.isNull())
processType(DDT.getTypeDerivedFrom());
}
}
/// CreateComplexVariable - Create a new descriptor for the specified variable
/// which has a complex address expression for its address.
DIVariable DIFactory::CreateComplexVariable(unsigned Tag, DIDescriptor Context,
const std::string &Name,
DICompileUnit CompileUnit,
unsigned LineNo,
DIType Type, SmallVector<Value *, 9> &addr) {
SmallVector<Value *, 9> Elts;
Elts.push_back(GetTagConstant(Tag));
Elts.push_back(Context.getNode());
Elts.push_back(MDString::get(VMContext, Name));
Elts.push_back(CompileUnit.getNode());
Elts.push_back(ConstantInt::get(Type::getInt32Ty(VMContext), LineNo));
Elts.push_back(Type.getNode());
Elts.insert(Elts.end(), addr.begin(), addr.end());
return DIVariable(MDNode::get(VMContext, &Elts[0], 6+addr.size()));
}
/// PopulateArrayTypeInfo - Populate TypeNo, Aux[] for array from Ty.
void PIC16DbgInfo::PopulateArrayTypeInfo (DIType Ty, unsigned short &TypeNo,
bool &HasAux, int Aux[],
std::string &TagName) {
DICompositeType CTy = DICompositeType(Ty.getNode());
DIArray Elements = CTy.getTypeArray();
unsigned short size = 1;
unsigned short Dimension[4]={0,0,0,0};
for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
DIDescriptor Element = Elements.getElement(i);
if (Element.getTag() == dwarf::DW_TAG_subrange_type) {
TypeNo = TypeNo << PIC16Dbg::S_DERIVED;
TypeNo = TypeNo | PIC16Dbg::DT_ARY;
DISubrange SubRange = DISubrange(Element.getNode());
Dimension[i] = SubRange.getHi() - SubRange.getLo() + 1;
// Each dimension is represented by 2 bytes starting at byte 9.
Aux[8+i*2+0] = Dimension[i];
Aux[8+i*2+1] = Dimension[i] >> 8;
size = size * Dimension[i];
}
}
/// CreateBasicType - Create a basic type like int, float, etc.
DIBasicType DIFactory::CreateBasicTypeEx(DIDescriptor Context,
const char * Name,
DICompileUnit CompileUnit,
unsigned LineNumber,
Constant *SizeInBits,
Constant *AlignInBits,
Constant *OffsetInBits, unsigned Flags,
unsigned Encoding) {
Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_base_type),
Context.getNode(),
MDString::get(VMContext, Name),
CompileUnit.getNode(),
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
SizeInBits,
AlignInBits,
OffsetInBits,
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
ConstantInt::get(Type::getInt32Ty(VMContext), Encoding)
};
return DIBasicType(MDNode::get(VMContext, &Elts[0], 10));
}
/// CreateSubprogram - Create a new descriptor for the specified subprogram.
/// See comments in DISubprogram for descriptions of these fields. This
/// method does not unique the generated descriptors.
DISubprogram DIFactory::CreateSubprogram(DIDescriptor Context,
const char * Name,
const char * DisplayName,
const char * LinkageName,
DICompileUnit CompileUnit,
unsigned LineNo, DIType Type,
bool isLocalToUnit,
bool isDefinition) {
Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_subprogram),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
Context.getNode(),
MDString::get(VMContext, Name),
MDString::get(VMContext, DisplayName),
MDString::get(VMContext, LinkageName),
CompileUnit.getNode(),
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
Type.getNode(),
ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition)
};
return DISubprogram(MDNode::get(VMContext, &Elts[0], 11));
}
/// CreateDerivedType - Create a derived type like const qualified type,
/// pointer, typedef, etc.
DIDerivedType DIFactory::CreateDerivedType(unsigned Tag,
DIDescriptor Context,
const char * Name,
DICompileUnit CompileUnit,
unsigned LineNumber,
uint64_t SizeInBits,
uint64_t AlignInBits,
uint64_t OffsetInBits,
unsigned Flags,
DIType DerivedFrom) {
Value *Elts[] = {
GetTagConstant(Tag),
Context.getNode(),
MDString::get(VMContext, Name),
CompileUnit.getNode(),
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
DerivedFrom.getNode(),
};
return DIDerivedType(MDNode::get(VMContext, &Elts[0], 10));
}
