| //===- BreakpointPrinter.cpp - Breakpoint location printer ----------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// \brief Breakpoint location printer. |
| /// |
| //===----------------------------------------------------------------------===// |
| #include "BreakpointPrinter.h" |
| #include "llvm/ADT/StringSet.h" |
| #include "llvm/IR/DebugInfo.h" |
| #include "llvm/IR/Module.h" |
| #include "llvm/Pass.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| using namespace llvm; |
| |
| namespace { |
| |
| struct BreakpointPrinter : public ModulePass { |
| raw_ostream &Out; |
| static char ID; |
| DITypeIdentifierMap TypeIdentifierMap; |
| |
| BreakpointPrinter(raw_ostream &out) : ModulePass(ID), Out(out) {} |
| |
| void getContextName(DIDescriptor Context, std::string &N) { |
| if (Context.isNameSpace()) { |
| DINameSpace NS(Context); |
| if (!NS.getName().empty()) { |
| getContextName(NS.getContext(), N); |
| N = N + NS.getName().str() + "::"; |
| } |
| } else if (Context.isType()) { |
| DIType TY(Context); |
| if (!TY.getName().empty()) { |
| getContextName(TY.getContext().resolve(TypeIdentifierMap), N); |
| N = N + TY.getName().str() + "::"; |
| } |
| } |
| } |
| |
| bool runOnModule(Module &M) override { |
| TypeIdentifierMap.clear(); |
| NamedMDNode *CU_Nodes = M.getNamedMetadata("llvm.dbg.cu"); |
| if (CU_Nodes) |
| TypeIdentifierMap = generateDITypeIdentifierMap(CU_Nodes); |
| |
| StringSet<> Processed; |
| if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp")) |
| for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) { |
| std::string Name; |
| DISubprogram SP(NMD->getOperand(i)); |
| assert((!SP || SP.isSubprogram()) && |
| "A MDNode in llvm.dbg.sp should be null or a DISubprogram."); |
| if (!SP) |
| continue; |
| getContextName(SP.getContext().resolve(TypeIdentifierMap), Name); |
| Name = Name + SP.getDisplayName().str(); |
| if (!Name.empty() && Processed.insert(Name)) { |
| Out << Name << "\n"; |
| } |
| } |
| return false; |
| } |
| |
| void getAnalysisUsage(AnalysisUsage &AU) const override { |
| AU.setPreservesAll(); |
| } |
| }; |
| |
| char BreakpointPrinter::ID = 0; |
| } |
| |
| ModulePass *llvm::createBreakpointPrinter(raw_ostream &out) { |
| return new BreakpointPrinter(out); |
| } |