[libFuzzer] Merge: print stats after reading the output corpus dir.
Summary:
The purpose is to be able to extract the number of new edges added to
the original (i.e. output) corpus directory after doing the merge. Use case
example: in ClusterFuzz, we do merge after every fuzzing session, to avoid
uploading too many corpus files, and we also record coverage stats at that
point. Having a separate line indicating stats after reading the initial output
corpus directory would make the stats extraction easier for both humans and
parsing scripts.
Context: https://github.com/google/clusterfuzz/issues/802.
Reviewers: morehouse, hctim
Reviewed By: hctim
Subscribers: delcypher, #sanitizers, llvm-commits, kcc
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D66020
llvm-svn: 368461
GitOrigin-RevId: 3653aeeffa199dd4c22e38424ea5cdfb4aa01349
diff --git a/FuzzerMerge.cpp b/FuzzerMerge.cpp
index 75b2b5d..bd99128 100644
--- a/FuzzerMerge.cpp
+++ b/FuzzerMerge.cpp
@@ -239,6 +239,8 @@
// Show stats.
if (!(TotalNumberOfRuns & (TotalNumberOfRuns - 1)))
PrintStats("pulse ");
+ if (TotalNumberOfRuns == M.NumFilesInFirstCorpus)
+ PrintStats("LOADED");
// Write the post-run marker and the coverage.
OF << "FT " << i;
for (size_t F : UniqFeatures)
@@ -252,7 +254,7 @@
OF << "\n";
OF.flush();
}
- PrintStats("DONE ");
+ PrintStats("DONE ");
}
static void WriteNewControlFile(const std::string &CFPath,
