commit da1689319b355d90aee2e2ee434b5a66fde6a5bd
author kcc <kcc> Thu Jan 31 00:09:43 2019 +0000
committer kcc <kcc> Thu Jan 31 00:09:43 2019 +0000
tree b83fd508bafe5a9e559b12e57675d1326c3cf301
parent deea354e0d91c4a756362390fbb501a47dec957f

[libFuzzer] experimental performance optimization -lazy_counters, off by default. Posix-only for now, tested on Linux

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/fuzzer@352700 91177308-0d34-0410-b5e6-96231b3b80d8

FuzzerLoop.cpp

diff --git a/FuzzerLoop.cpp b/FuzzerLoop.cpp
index 0247b57..959d5a2 100644
--- a/FuzzerLoop.cpp
+++ b/FuzzerLoop.cpp
@@ -205,6 +205,11 @@
   F->CrashCallback();
 }
 
+void Fuzzer::StaticSegvSignalCallback(void *Addr) {
+  if (TPC.UnprotectLazyCounters(Addr)) return;
+  StaticCrashSignalCallback();
+}
+
 void Fuzzer::StaticExitCallback() {
   assert(F);
   F->ExitCallback();