[libFuzzer] reinstate -dump_coverage, which is still in use (reverts r332036)
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/fuzzer@332876 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/FuzzerTracePC.cpp b/FuzzerTracePC.cpp
index ed62cdc..fb8544f 100644
--- a/FuzzerTracePC.cpp
+++ b/FuzzerTracePC.cpp
@@ -298,6 +298,15 @@
IterateCoveredFunctions(CoveredFunctionCallback);
}
+void TracePC::DumpCoverage() {
+ if (EF->__sanitizer_dump_coverage) {
+ Vector<uintptr_t> PCsCopy(GetNumPCs());
+ for (size_t i = 0; i < GetNumPCs(); i++)
+ PCsCopy[i] = PCs()[i] ? GetPreviousInstructionPc(PCs()[i]) : 0;
+ EF->__sanitizer_dump_coverage(PCsCopy.data(), PCsCopy.size());
+ }
+}
+
// Value profile.
// We keep track of various values that affect control flow.
// These values are inserted into a bit-set-based hash map.