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//===- BreakpointPrinter.cpp - Breakpoint location printer ----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
///
/// \file
/// 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;
BreakpointPrinter(raw_ostream &out) : ModulePass(ID), Out(out) {}
void getContextName(const DIScope *Context, std::string &N) {
if (auto *NS = dyn_cast<DINamespace>(Context)) {
if (!NS->getName().empty()) {
getContextName(NS->getScope(), N);
N = N + NS->getName().str() + "::";
}
} else if (auto *TY = dyn_cast<DIType>(Context)) {
if (!TY->getName().empty()) {
getContextName(TY->getScope(), N);
N = N + TY->getName().str() + "::";
}
}
}
bool runOnModule(Module &M) override {
StringSet<> Processed;
if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp"))
for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
std::string Name;
auto *SP = cast_or_null<DISubprogram>(NMD->getOperand(i));
if (!SP)
continue;
getContextName(SP->getScope(), Name);
Name = Name + SP->getName().str();
if (!Name.empty() && Processed.insert(Name).second) {
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);
}
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