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authorthegeorg <[email protected]>2022-11-07 19:34:08 +0300
committerthegeorg <[email protected]>2022-11-07 19:34:08 +0300
commit50f76e264c70a223a34b24aa59e97bff97128f4c (patch)
treee604247a10f09df6158c172577b9bfa431f1e1b5 /contrib/libs/libfuzzer12/FuzzerMerge.h
parent278a58c5af63dbd7f7a6d8b8d92dc246651242da (diff)
Switch fuzz tests to contrib/libs/libfuzzer
Diffstat (limited to 'contrib/libs/libfuzzer12/FuzzerMerge.h')
-rw-r--r--contrib/libs/libfuzzer12/FuzzerMerge.h87
1 files changed, 0 insertions, 87 deletions
diff --git a/contrib/libs/libfuzzer12/FuzzerMerge.h b/contrib/libs/libfuzzer12/FuzzerMerge.h
deleted file mode 100644
index e0c6bc539bd..00000000000
--- a/contrib/libs/libfuzzer12/FuzzerMerge.h
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-//===- FuzzerMerge.h - merging corpa ----------------------------*- C++ -* ===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-// Merging Corpora.
-//
-// The task:
-// Take the existing corpus (possibly empty) and merge new inputs into
-// it so that only inputs with new coverage ('features') are added.
-// The process should tolerate the crashes, OOMs, leaks, etc.
-//
-// Algorithm:
-// The outer process collects the set of files and writes their names
-// into a temporary "control" file, then repeatedly launches the inner
-// process until all inputs are processed.
-// The outer process does not actually execute the target code.
-//
-// The inner process reads the control file and sees a) list of all the inputs
-// and b) the last processed input. Then it starts processing the inputs one
-// by one. Before processing every input it writes one line to control file:
-// STARTED INPUT_ID INPUT_SIZE
-// After processing an input it writes the following lines:
-// FT INPUT_ID Feature1 Feature2 Feature3 ...
-// COV INPUT_ID Coverage1 Coverage2 Coverage3 ...
-// If a crash happens while processing an input the last line in the control
-// file will be "STARTED INPUT_ID" and so the next process will know
-// where to resume.
-//
-// Once all inputs are processed by the inner process(es) the outer process
-// reads the control files and does the merge based entirely on the contents
-// of control file.
-// It uses a single pass greedy algorithm choosing first the smallest inputs
-// within the same size the inputs that have more new features.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_FUZZER_MERGE_H
-#define LLVM_FUZZER_MERGE_H
-
-#include "FuzzerDefs.h"
-
-#include <istream>
-#include <ostream>
-#include <set>
-#include <vector>
-
-namespace fuzzer {
-
-struct MergeFileInfo {
- std::string Name;
- size_t Size = 0;
- Vector<uint32_t> Features, Cov;
-};
-
-struct Merger {
- Vector<MergeFileInfo> Files;
- size_t NumFilesInFirstCorpus = 0;
- size_t FirstNotProcessedFile = 0;
- std::string LastFailure;
-
- bool Parse(std::istream &IS, bool ParseCoverage);
- bool Parse(const std::string &Str, bool ParseCoverage);
- void ParseOrExit(std::istream &IS, bool ParseCoverage);
- size_t Merge(const Set<uint32_t> &InitialFeatures, Set<uint32_t> *NewFeatures,
- const Set<uint32_t> &InitialCov, Set<uint32_t> *NewCov,
- Vector<std::string> *NewFiles);
- size_t ApproximateMemoryConsumption() const;
- Set<uint32_t> AllFeatures() const;
-};
-
-void CrashResistantMerge(const Vector<std::string> &Args,
- const Vector<SizedFile> &OldCorpus,
- const Vector<SizedFile> &NewCorpus,
- Vector<std::string> *NewFiles,
- const Set<uint32_t> &InitialFeatures,
- Set<uint32_t> *NewFeatures,
- const Set<uint32_t> &InitialCov,
- Set<uint32_t> *NewCov,
- const std::string &CFPath,
- bool Verbose);
-
-} // namespace fuzzer
-
-#endif // LLVM_FUZZER_MERGE_H