[libFuzzer] set libFuzzer's own SEGV handler even one is already present, but call that handler from ours (unless we are unprotecting lazy counters). Call ProtectLazyCounters later, so that it runs after the initialization code in the target.
llvm-svn: 352713
diff --git a/compiler-rt/lib/fuzzer/FuzzerDriver.cpp b/compiler-rt/lib/fuzzer/FuzzerDriver.cpp
index acebd3a..0f8389c 100644
--- a/compiler-rt/lib/fuzzer/FuzzerDriver.cpp
+++ b/compiler-rt/lib/fuzzer/FuzzerDriver.cpp
@@ -628,6 +628,7 @@
Options.FocusFunction = Flags.focus_function;
if (Flags.data_flow_trace)
Options.DataFlowTrace = Flags.data_flow_trace;
+ Options.LazyCounters = Flags.lazy_counters;
unsigned Seed = Flags.seed;
// Initialize Seed.
@@ -658,10 +659,7 @@
Options.HandleXfsz = Flags.handle_xfsz;
Options.HandleUsr1 = Flags.handle_usr1;
Options.HandleUsr2 = Flags.handle_usr2;
- Options.LazyCounters = Flags.lazy_counters;
SetSignalHandler(Options);
- if (Options.LazyCounters)
- TPC.ProtectLazyCounters();
std::atexit(Fuzzer::StaticExitCallback);