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| author | Mitch Phillips <mitchphillips@outlook.com> | 2019-09-27 22:04:36 +0000 |
|---|---|---|
| committer | Mitch Phillips <mitchphillips@outlook.com> | 2019-09-27 22:04:36 +0000 |
| commit | 2b7e04031eae52b103c2dd20d4aaf6c4a9f7251e (patch) | |
| tree | 303fb17aec69fbe385c3dba2197bce3de3cc0534 | |
| parent | 298de05963130a8c282d2a67d1a0971c38696043 (diff) | |
| download | compiler-rt-2b7e04031eae52b103c2dd20d4aaf6c4a9f7251e.tar.gz | |
[libFuzzer] Dump trace and provide correct msg for overwritten input.
Summary:
Now crashes with a stacktrace and uses 'overwrites-const-input' as the error
message instead of 'out-of-memory'.
Reviewers: morehouse, Dor1s
Reviewed By: morehouse, Dor1s
Subscribers: #sanitizers, llvm-commits, metzman, Dor1s
Tags: #sanitizers, #llvm
Differential Revision: https://reviews.llvm.org/D68067
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@373130 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/fuzzer/FuzzerLoop.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/fuzzer/FuzzerLoop.cpp b/lib/fuzzer/FuzzerLoop.cpp index 7150a116b..96ab544b1 100644 --- a/lib/fuzzer/FuzzerLoop.cpp +++ b/lib/fuzzer/FuzzerLoop.cpp @@ -515,8 +515,10 @@ size_t Fuzzer::GetCurrentUnitInFuzzingThead(const uint8_t **Data) const { void Fuzzer::CrashOnOverwrittenData() { Printf("==%d== ERROR: libFuzzer: fuzz target overwrites its const input\n", GetPid()); + PrintStackTrace(); + Printf("SUMMARY: libFuzzer: overwrites-const-input\n"); DumpCurrentUnit("crash-"); - Printf("SUMMARY: libFuzzer: out-of-memory\n"); + PrintFinalStats(); _Exit(Options.ErrorExitCode); // Stop right now. } |