diff options
| author | Max Moroz <mmoroz@chromium.org> | 2017-10-05 22:41:03 +0000 |
|---|---|---|
| committer | Max Moroz <mmoroz@chromium.org> | 2017-10-05 22:41:03 +0000 |
| commit | 590a32da41f486f5d834ccc9af1d337565b6a675 (patch) | |
| tree | 8e96c5110a938df2585a3e9bffd09cc832257bd5 /lib/fuzzer/FuzzerTracePC.h | |
| parent | 2edf2374329a4748bad03d6a6517ec89b1e472de (diff) | |
[libFuzzer] Disable experimental clang coverage support by default.
Summary:
It can be enabled via "-use_clang_coverage=1" flag. Reason for disabling:
libFuzzer resets Clang Counters and makes it impossible to generate coverage
report for a regular fuzz target (i.e. not standalone build).
Reviewers: kcc
Reviewed By: kcc
Subscribers: kcc
Differential Revision: https://reviews.llvm.org/D38604
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@315029 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/fuzzer/FuzzerTracePC.h')
| -rw-r--r-- | lib/fuzzer/FuzzerTracePC.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/fuzzer/FuzzerTracePC.h b/lib/fuzzer/FuzzerTracePC.h index 743db5483..b3c9b9861 100644 --- a/lib/fuzzer/FuzzerTracePC.h +++ b/lib/fuzzer/FuzzerTracePC.h @@ -80,6 +80,7 @@ class TracePC { template <class T> void HandleCmp(uintptr_t PC, T Arg1, T Arg2); size_t GetTotalPCCoverage(); void SetUseCounters(bool UC) { UseCounters = UC; } + void SetUseClangCoverage(bool UCC) { UseClangCoverage = UCC; } void SetUseValueProfile(bool VP) { UseValueProfile = VP; } void SetPrintNewPCs(bool P) { DoPrintNewPCs = P; } void SetPrintNewFuncs(size_t P) { NumPrintNewFuncs = P; } @@ -92,7 +93,8 @@ class TracePC { memset(Counters(), 0, GetNumPCs()); ClearExtraCounters(); ClearInlineCounters(); - ClearClangCounters(); + if (UseClangCoverage) + ClearClangCounters(); } void ClearInlineCounters(); @@ -133,6 +135,7 @@ class TracePC { private: bool UseCounters = false; bool UseValueProfile = false; + bool UseClangCoverage = false; bool DoPrintNewPCs = false; size_t NumPrintNewFuncs = 0; |