xref: /aosp_15_r20/external/llvm/tools/opt/BreakpointPrinter.cpp (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker //===- BreakpointPrinter.cpp - Breakpoint location printer ----------------===//
2*9880d681SAndroid Build Coastguard Worker //
3*9880d681SAndroid Build Coastguard Worker //                     The LLVM Compiler Infrastructure
4*9880d681SAndroid Build Coastguard Worker //
5*9880d681SAndroid Build Coastguard Worker // This file is distributed under the University of Illinois Open Source
6*9880d681SAndroid Build Coastguard Worker // License. See LICENSE.TXT for details.
7*9880d681SAndroid Build Coastguard Worker //
8*9880d681SAndroid Build Coastguard Worker //===----------------------------------------------------------------------===//
9*9880d681SAndroid Build Coastguard Worker ///
10*9880d681SAndroid Build Coastguard Worker /// \file
11*9880d681SAndroid Build Coastguard Worker /// \brief Breakpoint location printer.
12*9880d681SAndroid Build Coastguard Worker ///
13*9880d681SAndroid Build Coastguard Worker //===----------------------------------------------------------------------===//
14*9880d681SAndroid Build Coastguard Worker #include "BreakpointPrinter.h"
15*9880d681SAndroid Build Coastguard Worker #include "llvm/ADT/StringSet.h"
16*9880d681SAndroid Build Coastguard Worker #include "llvm/IR/DebugInfo.h"
17*9880d681SAndroid Build Coastguard Worker #include "llvm/IR/Module.h"
18*9880d681SAndroid Build Coastguard Worker #include "llvm/Pass.h"
19*9880d681SAndroid Build Coastguard Worker #include "llvm/Support/raw_ostream.h"
20*9880d681SAndroid Build Coastguard Worker 
21*9880d681SAndroid Build Coastguard Worker using namespace llvm;
22*9880d681SAndroid Build Coastguard Worker 
23*9880d681SAndroid Build Coastguard Worker namespace {
24*9880d681SAndroid Build Coastguard Worker 
25*9880d681SAndroid Build Coastguard Worker struct BreakpointPrinter : public ModulePass {
26*9880d681SAndroid Build Coastguard Worker   raw_ostream &Out;
27*9880d681SAndroid Build Coastguard Worker   static char ID;
28*9880d681SAndroid Build Coastguard Worker 
BreakpointPrinter__anon54a352570111::BreakpointPrinter29*9880d681SAndroid Build Coastguard Worker   BreakpointPrinter(raw_ostream &out) : ModulePass(ID), Out(out) {}
30*9880d681SAndroid Build Coastguard Worker 
getContextName__anon54a352570111::BreakpointPrinter31*9880d681SAndroid Build Coastguard Worker   void getContextName(const DIScope *Context, std::string &N) {
32*9880d681SAndroid Build Coastguard Worker     if (auto *NS = dyn_cast<DINamespace>(Context)) {
33*9880d681SAndroid Build Coastguard Worker       if (!NS->getName().empty()) {
34*9880d681SAndroid Build Coastguard Worker         getContextName(NS->getScope(), N);
35*9880d681SAndroid Build Coastguard Worker         N = N + NS->getName().str() + "::";
36*9880d681SAndroid Build Coastguard Worker       }
37*9880d681SAndroid Build Coastguard Worker     } else if (auto *TY = dyn_cast<DIType>(Context)) {
38*9880d681SAndroid Build Coastguard Worker       if (!TY->getName().empty()) {
39*9880d681SAndroid Build Coastguard Worker         getContextName(TY->getScope().resolve(), N);
40*9880d681SAndroid Build Coastguard Worker         N = N + TY->getName().str() + "::";
41*9880d681SAndroid Build Coastguard Worker       }
42*9880d681SAndroid Build Coastguard Worker     }
43*9880d681SAndroid Build Coastguard Worker   }
44*9880d681SAndroid Build Coastguard Worker 
runOnModule__anon54a352570111::BreakpointPrinter45*9880d681SAndroid Build Coastguard Worker   bool runOnModule(Module &M) override {
46*9880d681SAndroid Build Coastguard Worker     StringSet<> Processed;
47*9880d681SAndroid Build Coastguard Worker     if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp"))
48*9880d681SAndroid Build Coastguard Worker       for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
49*9880d681SAndroid Build Coastguard Worker         std::string Name;
50*9880d681SAndroid Build Coastguard Worker         auto *SP = cast_or_null<DISubprogram>(NMD->getOperand(i));
51*9880d681SAndroid Build Coastguard Worker         if (!SP)
52*9880d681SAndroid Build Coastguard Worker           continue;
53*9880d681SAndroid Build Coastguard Worker         getContextName(SP->getScope().resolve(), Name);
54*9880d681SAndroid Build Coastguard Worker         Name = Name + SP->getDisplayName().str();
55*9880d681SAndroid Build Coastguard Worker         if (!Name.empty() && Processed.insert(Name).second) {
56*9880d681SAndroid Build Coastguard Worker           Out << Name << "\n";
57*9880d681SAndroid Build Coastguard Worker         }
58*9880d681SAndroid Build Coastguard Worker       }
59*9880d681SAndroid Build Coastguard Worker     return false;
60*9880d681SAndroid Build Coastguard Worker   }
61*9880d681SAndroid Build Coastguard Worker 
getAnalysisUsage__anon54a352570111::BreakpointPrinter62*9880d681SAndroid Build Coastguard Worker   void getAnalysisUsage(AnalysisUsage &AU) const override {
63*9880d681SAndroid Build Coastguard Worker     AU.setPreservesAll();
64*9880d681SAndroid Build Coastguard Worker   }
65*9880d681SAndroid Build Coastguard Worker };
66*9880d681SAndroid Build Coastguard Worker 
67*9880d681SAndroid Build Coastguard Worker char BreakpointPrinter::ID = 0;
68*9880d681SAndroid Build Coastguard Worker }
69*9880d681SAndroid Build Coastguard Worker 
createBreakpointPrinter(raw_ostream & out)70*9880d681SAndroid Build Coastguard Worker ModulePass *llvm::createBreakpointPrinter(raw_ostream &out) {
71*9880d681SAndroid Build Coastguard Worker   return new BreakpointPrinter(out);
72*9880d681SAndroid Build Coastguard Worker }
73