From 1cba0a96e7def030a89bd1bf10c355e515b0957b Mon Sep 17 00:00:00 2001
From: Kostya Serebryany <kcc@google.com>
Date: Wed, 30 Nov 2016 21:53:32 +0000
Subject: [libFuzzer] extend -print_coverage to print the comma-separated list
 of covered dirs. Note: the Windows stub for DirName is left unimplemented

llvm-svn: 288276
---
 llvm/lib/Fuzzer/FuzzerTracePC.cpp | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'llvm/lib/Fuzzer/FuzzerTracePC.cpp')

diff --git a/llvm/lib/Fuzzer/FuzzerTracePC.cpp b/llvm/lib/Fuzzer/FuzzerTracePC.cpp
index eabf0d087f4..8d58a6d3a91 100644
--- a/llvm/lib/Fuzzer/FuzzerTracePC.cpp
+++ b/llvm/lib/Fuzzer/FuzzerTracePC.cpp
@@ -131,7 +131,8 @@ void TracePC::PrintCoverage() {
   }
   std::map<std::string, std::vector<uintptr_t>> CoveredPCsPerModule;
   std::map<std::string, uintptr_t> ModuleOffsets;
-  std::set<std::string> CoveredFiles, CoveredFunctions, CoveredLines;
+  std::set<std::string> CoveredDirs, CoveredFiles, CoveredFunctions,
+      CoveredLines;
   Printf("COVERAGE:\n");
   for (size_t i = 1; i < GetNumPCs(); i++) {
     if (!PCs[i]) continue;
@@ -150,12 +151,21 @@ void TracePC::PrintCoverage() {
     CoveredPCsPerModule[Module].push_back(PcOffset);
     CoveredFunctions.insert(FunctionStr);
     CoveredFiles.insert(FileStr);
+    CoveredDirs.insert(DirName(FileStr));
     if (!CoveredLines.insert(FileStr + ":" + LineStr).second)
       continue;
     Printf("COVERED: %s %s:%s\n", FunctionStr.c_str(),
            FileStr.c_str(), LineStr.c_str());
   }
 
+  std::string CoveredDirsStr;
+  for (auto &Dir : CoveredDirs) {
+    if (!CoveredDirsStr.empty())
+      CoveredDirsStr += ",";
+    CoveredDirsStr += Dir;
+  }
+  Printf("COVERED_DIRS: %s\n", CoveredDirsStr.c_str());
+
   for (auto &M : CoveredPCsPerModule) {
     std::set<std::string> UncoveredFiles, UncoveredFunctions;
     std::map<std::string, std::set<int> > UncoveredLines;  // Func+File => lines
-- 
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