llvm-project/llvm/lib/Fuzzer/FuzzerFlags.def

//===- FuzzerFlags.def - Run-time flags -------------------------*- C++ -* ===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// Flags. FUZZER_FLAG_INT/FUZZER_FLAG_STRING macros should be defined at the
// point of inclusion. We are not using any flag parsing library for better
// portability and independence.
//===----------------------------------------------------------------------===//
FUZZER_FLAG_INT(verbosity, 1, "Verbosity level.")
FUZZER_FLAG_INT(seed, 0, "Random seed. If 0, seed is generated.")
FUZZER_FLAG_INT(iterations, -1,
            "Number of iterations of the fuzzer internal loop"
            " (-1 for infinite iterations).")
FUZZER_FLAG_INT(runs, -1,
            "Number of individual test runs (-1 for infinite runs).")
FUZZER_FLAG_INT(max_len, 64, "Maximal length of the test input.")
FUZZER_FLAG_INT(cross_over, 1, "If 1, cross over inputs.")
FUZZER_FLAG_INT(mutate_depth, 5,
            "Apply this number of consecutive mutations to each input.")
FUZZER_FLAG_INT(
    prefer_small_during_initial_shuffle, -1,
    "If 1, always prefer smaller inputs during the initial corpus shuffle."
    " If 0, never do that. If -1, do it sometimes.")
FUZZER_FLAG_INT(exit_on_first, 0,
            "If 1, exit after the first new interesting input is found.")
FUZZER_FLAG_INT(timeout, -1, "Timeout in seconds (if positive).")
FUZZER_FLAG_INT(help, 0, "Print help.")
FUZZER_FLAG_INT(
    save_minimized_corpus, 0,
    "If 1, the minimized corpus is saved into the first input directory")
FUZZER_FLAG_INT(use_counters, 1, "Use coverage counters")
FUZZER_FLAG_INT(use_traces, 0, "Experimental: use instruction traces")
FUZZER_FLAG_INT(use_full_coverage_set, 0,
            "Experimental: Maximize the number of different full"
            " coverage sets as opposed to maximizing the total coverage."
            " This is potentially MUCH slower, but may discover more paths.")
FUZZER_FLAG_INT(use_coverage_pairs, 0,
            "Experimental: Maximize the number of different coverage pairs.")
FUZZER_FLAG_INT(jobs, 0, "Number of jobs to run. If jobs >= 1 we spawn"
                          " this number of jobs in separate worker processes"
                          " with stdout/stderr redirected to fuzz-JOB.log.")
FUZZER_FLAG_INT(workers, 0,
            "Number of simultaneous worker processes to run the jobs."
            " If zero, \"min(jobs,NumberOfCpuCores()/2)\" is used.")
FUZZER_FLAG_INT(reload, 1,
                "Reload the main corpus periodically to get new units"
                "discovered by other processes.")
FUZZER_FLAG_STRING(tokens, "Use the file with tokens (one token per line) to"
                           " fuzz a token based input language.")
FUZZER_FLAG_STRING(apply_tokens, "Read the given input file, substitute bytes "
                                 " with tokens and write the result to stdout.")
FUZZER_FLAG_STRING(sync_command, "Execute an external command "
                                 "\"<sync_command> <test_corpus>\" "
                                 "to synchronize the test corpus.")
FUZZER_FLAG_INT(sync_timeout, 600, "Minimal timeout between syncs.")