1//===- FuzzerFlags.def - Run-time flags -------------------------*- C++ -* ===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9// Flags. FUZZER_FLAG_INT/FUZZER_FLAG_STRING macros should be defined at the
10// point of inclusion. We are not using any flag parsing library for better
11// portability and independence.
12//===----------------------------------------------------------------------===//
13FUZZER_FLAG_INT(verbosity, 1, "Verbosity level.")
14FUZZER_FLAG_INT(seed, 0, "Random seed. If 0, seed is generated.")
15FUZZER_FLAG_INT(iterations, -1,
16            "Number of iterations of the fuzzer internal loop"
17            " (-1 for infinite iterations).")
18FUZZER_FLAG_INT(runs, -1,
19            "Number of individual test runs (-1 for infinite runs).")
20FUZZER_FLAG_INT(max_len, 64, "Maximal length of the test input.")
21FUZZER_FLAG_INT(cross_over, 1, "If 1, cross over inputs.")
22FUZZER_FLAG_INT(mutate_depth, 5,
23            "Apply this number of consecutive mutations to each input.")
24FUZZER_FLAG_INT(
25    prefer_small_during_initial_shuffle, -1,
26    "If 1, always prefer smaller inputs during the initial corpus shuffle."
27    " If 0, never do that. If -1, do it sometimes.")
28FUZZER_FLAG_INT(exit_on_first, 0,
29            "If 1, exit after the first new interesting input is found.")
30FUZZER_FLAG_INT(timeout, -1, "Timeout in seconds (if positive).")
31FUZZER_FLAG_INT(help, 0, "Print help.")
32FUZZER_FLAG_INT(
33    save_minimized_corpus, 0,
34    "If 1, the minimized corpus is saved into the first input directory")
35FUZZER_FLAG_INT(use_counters, 0, "Use coverage counters")
36FUZZER_FLAG_INT(use_full_coverage_set, 0,
37            "Experimental: Maximize the number of different full"
38            " coverage sets as opposed to maximizing the total coverage."
39            " This is potentially MUCH slower, but may discover more paths.")
40FUZZER_FLAG_INT(use_coverage_pairs, 0,
41            "Experimental: Maximize the number of different coverage pairs.")
42FUZZER_FLAG_INT(jobs, 0, "Number of jobs to run. If jobs >= 1 we spawn"
43                          " this number of jobs in separate worker processes"
44                          " with stdout/stderr redirected to fuzz-JOB.log.")
45FUZZER_FLAG_INT(workers, 0,
46            "Number of simultaneous worker processes to run the jobs.")
47FUZZER_FLAG_INT(dfsan, 1, "Use DFSan for taint-guided mutations. No-op unless "
48                           "the DFSan instrumentation was compiled in.")
49
50FUZZER_FLAG_STRING(tokens, "Use the file with tokens (one token per line) to"
51                           " fuzz a token based input language.")
52FUZZER_FLAG_STRING(apply_tokens, "Read the given input file, substitute bytes "
53                                 " with tokens and write the result to stdout.")
54