commit d701d9e213d3d7149ff9739a8b385ab3a0c02962
author kcc <kcc> Thu May 23 00:22:46 2019 +0000
committer kcc <kcc> Thu May 23 00:22:46 2019 +0000
tree 598283b3fa907db26f9ef5667c0e0905e94e6234
parent ed73fdffdc11e9c73f217c11199cc98e3cbce8cd

[libFuzzer] automatically collect the data flow trace (DFT) in the fork mode if -collect_data_flow= is given

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/fuzzer@361448 91177308-0d34-0410-b5e6-96231b3b80d8

FuzzerDriver.cpp

diff --git a/FuzzerDriver.cpp b/FuzzerDriver.cpp
index 95ce8bb..d55caf4 100644
--- a/FuzzerDriver.cpp
+++ b/FuzzerDriver.cpp
@@ -700,6 +700,8 @@
     Options.DataFlowTrace = Flags.data_flow_trace;
   if (Flags.features_dir)
     Options.FeaturesDir = Flags.features_dir;
+  if (Flags.collect_data_flow)
+    Options.CollectDataFlow = Flags.collect_data_flow;
   Options.LazyCounters = Flags.lazy_counters;
 
   unsigned Seed = Flags.seed;
@@ -710,7 +712,7 @@
   if (Flags.verbosity)
     Printf("INFO: Seed: %u\n", Seed);
 
-  if (Flags.collect_data_flow) {
+  if (Flags.collect_data_flow && !Flags.fork && !Flags.merge) {
     if (RunIndividualFiles)
       return CollectDataFlow(Flags.collect_data_flow, Flags.data_flow_trace,
                         ReadCorpora({}, *Inputs));