void DebugInfoFinder::processModule(const Module &M) {
InitializeTypeMap(M);
if (NamedMDNode *CU_Nodes = M.getNamedMetadata("llvm.dbg.cu")) {
for (unsigned i = 0, e = CU_Nodes->getNumOperands(); i != e; ++i) {
DICompileUnit CU = cast<MDCompileUnit>(CU_Nodes->getOperand(i));
addCompileUnit(CU);
for (DIGlobalVariable DIG : CU->getGlobalVariables()) {
if (addGlobalVariable(DIG)) {
processScope(DIG.getContext());
processType(DIG.getType().resolve(TypeIdentifierMap));
}
}
for (auto *SP : CU->getSubprograms())
processSubprogram(SP);
for (auto *ET : CU->getEnumTypes())
processType(ET);
for (auto *RT : CU->getRetainedTypes())
processType(RT);
for (DIImportedEntity Import : CU->getImportedEntities()) {
DIDescriptor Entity = Import.getEntity().resolve(TypeIdentifierMap);
if (auto *T = dyn_cast<MDType>(Entity))
processType(T);
else if (auto *SP = dyn_cast<MDSubprogram>(Entity))
processSubprogram(SP);
else if (auto *NS = dyn_cast<MDNamespace>(Entity))
processScope(NS->getScope());
}
}
}
}
void Matcher::processSubprograms(DICompileUnit &DICU)
{
if (DICU.getRunTimeVersion() > LLVMDebugVersion10) {
DIArray SPs = DICU.getSubprograms();
for (unsigned i = 0, e = SPs.getNumElements(); i != e; i++) {
DISubprogram DISP(SPs.getElement(i));
DISPCopy Copy(DISP);
if (Copy.name.empty() || Copy.filename.empty() || Copy.linenumber == 0)
continue;
Copy.lastline = ScopeInfoFinder::getLastLine(Copy.function);
MySPs.push_back(Copy);
}
}
}
llvm::DenseMap<const llvm::Function *, llvm::DISubprogram>
llvm::makeSubprogramMap(const Module &M) {
DenseMap<const Function *, DISubprogram> R;
NamedMDNode *CU_Nodes = M.getNamedMetadata("llvm.dbg.cu");
if (!CU_Nodes)
return R;
for (MDNode *N : CU_Nodes->operands()) {
DICompileUnit CUNode = cast<MDCompileUnit>(N);
for (DISubprogram SP : CUNode->getSubprograms()) {
if (Function *F = SP.getFunction())
R.insert(std::make_pair(F, SP));
}
}
return R;
}