diff options
Diffstat (limited to 'llvm/lib/Fuzzer/FuzzerDriver.cpp')
-rw-r--r-- | llvm/lib/Fuzzer/FuzzerDriver.cpp | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/llvm/lib/Fuzzer/FuzzerDriver.cpp b/llvm/lib/Fuzzer/FuzzerDriver.cpp index 7707f76cd37..97dbf00bc87 100644 --- a/llvm/lib/Fuzzer/FuzzerDriver.cpp +++ b/llvm/lib/Fuzzer/FuzzerDriver.cpp @@ -277,7 +277,8 @@ static bool AllInputsAreFiles() { return true; } -int MinimizeCrashInput(const std::vector<std::string> &Args) { +int MinimizeCrashInput(const std::vector<std::string> &Args, + const FuzzingOptions &Options) { if (Inputs->size() != 1) { Printf("ERROR: -minimize_crash should be given one input file\n"); exit(1); @@ -299,10 +300,6 @@ int MinimizeCrashInput(const std::vector<std::string> &Args) { std::string CurrentFilePath = InputFilePath; while (true) { Unit U = FileToVector(CurrentFilePath); - if (U.size() < 2) { - Printf("CRASH_MIN: '%s' is small enough\n", CurrentFilePath.c_str()); - return 0; - } Printf("CRASH_MIN: minimizing crash input: '%s' (%zd bytes)\n", CurrentFilePath.c_str(), U.size()); @@ -318,7 +315,8 @@ int MinimizeCrashInput(const std::vector<std::string> &Args) { "it further\n", CurrentFilePath.c_str(), U.size()); - std::string ArtifactPath = "minimized-from-" + Hash(U); + std::string ArtifactPath = + Options.ArtifactPrefix + "minimized-from-" + Hash(U); Cmd += " -minimize_crash_internal_step=1 -exact_artifact_path=" + ArtifactPath; Printf("CRASH_MIN: executing: %s\n", Cmd.c_str()); @@ -342,8 +340,11 @@ int MinimizeCrashInputInternalStep(Fuzzer *F, InputCorpus *Corpus) { assert(Inputs->size() == 1); std::string InputFilePath = Inputs->at(0); Unit U = FileToVector(InputFilePath); - assert(U.size() > 2); Printf("INFO: Starting MinimizeCrashInputInternalStep: %zd\n", U.size()); + if (U.size() < 2) { + Printf("INFO: The input is small enough, exiting\n"); + exit(0); + } Corpus->AddToCorpus(U, 0); F->SetMaxInputLen(U.size()); F->SetMaxMutationLen(U.size() - 1); @@ -368,9 +369,6 @@ int FuzzerDriver(int *argc, char ***argv, UserCallback Callback) { return 0; } - if (Flags.minimize_crash) - return MinimizeCrashInput(Args); - if (Flags.close_fd_mask & 2) DupAndCloseStderr(); if (Flags.close_fd_mask & 1) @@ -470,6 +468,9 @@ int FuzzerDriver(int *argc, char ***argv, UserCallback Callback) { Options.HandleXfsz = Flags.handle_xfsz; SetSignalHandler(Options); + if (Flags.minimize_crash) + return MinimizeCrashInput(Args, Options); + if (Flags.minimize_crash_internal_step) return MinimizeCrashInputInternalStep(F, Corpus); |