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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
//===- FuzzerDataFlowTrace.h - Internal header for the Fuzzer ---*- C++ -* ===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// fuzzer::DataFlowTrace; reads and handles a data-flow trace.
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//
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// A data flow trace is generated by e.g. dataflow/DataFlow.cpp
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// and is stored on disk in a separate directory.
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//
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// The trace dir contains a file 'functions.txt' which lists function names,
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// oner per line, e.g.
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// ==> functions.txt <==
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// Func2
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// LLVMFuzzerTestOneInput
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// Func1
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//
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// All other files in the dir are the traces, see dataflow/DataFlow.cpp.
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// The name of the file is sha1 of the input used to generate the trace.
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//
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// Current status:
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// the data is parsed and the summary is printed, but the data is not yet
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// used in any other way.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_FUZZER_DATA_FLOW_TRACE
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#define LLVM_FUZZER_DATA_FLOW_TRACE
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#include "FuzzerDefs.h"
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#include <unordered_map>
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#include <vector>
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#include <string>
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namespace fuzzer {
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class DataFlowTrace {
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public:
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void Init(const std::string &DirPath, const std::string &FocusFunction);
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void Clear() { Traces.clear(); }
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const Vector<uint8_t> *Get(const std::string &InputSha1) const {
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auto It = Traces.find(InputSha1);
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if (It != Traces.end())
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return &It->second;
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return nullptr;
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}
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private:
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// Input's sha1 => DFT for the FocusFunction.
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std::unordered_map<std::string, Vector<uint8_t> > Traces;
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};
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} // namespace fuzzer
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#endif // LLVM_FUZZER_DATA_FLOW_TRACE
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