1 //===- FuzzerFlags.def - Run-time flags -------------------------*- C++ -* ===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
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 //===----------------------------------------------------------------------===//
13 FUZZER_FLAG_INT(verbosity, 1, "Verbosity level.")
14 FUZZER_FLAG_INT(seed, 0, "Random seed. If 0, seed is generated.")
15 FUZZER_FLAG_INT(iterations, -1,
16 "Number of iterations of the fuzzer internal loop"
17 " (-1 for infinite iterations).")
18 FUZZER_FLAG_INT(runs, -1,
19 "Number of individual test runs (-1 for infinite runs).")
20 FUZZER_FLAG_INT(max_len, 64, "Maximum length of the test input.")
21 FUZZER_FLAG_INT(cross_over, 1, "If 1, cross over inputs.")
22 FUZZER_FLAG_INT(mutate_depth, 5,
23 "Apply this number of consecutive mutations to each input.")
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.")
28 FUZZER_FLAG_INT(exit_on_first, 0,
29 "If 1, exit after the first new interesting input is found.")
32 "Timeout in seconds (if positive). "
33 "If one unit runs more than this number of seconds the process will abort.")
34 FUZZER_FLAG_INT(help, 0, "Print help.")
36 save_minimized_corpus, 0,
37 "If 1, the minimized corpus is saved into the first input directory")
38 FUZZER_FLAG_INT(use_counters, 1, "Use coverage counters")
39 FUZZER_FLAG_INT(use_traces, 0, "Experimental: use instruction traces")
40 FUZZER_FLAG_INT(use_full_coverage_set, 0,
41 "Experimental: Maximize the number of different full"
42 " coverage sets as opposed to maximizing the total coverage."
43 " This is potentially MUCH slower, but may discover more paths.")
44 FUZZER_FLAG_INT(jobs, 0, "Number of jobs to run. If jobs >= 1 we spawn"
45 " this number of jobs in separate worker processes"
46 " with stdout/stderr redirected to fuzz-JOB.log.")
47 FUZZER_FLAG_INT(workers, 0,
48 "Number of simultaneous worker processes to run the jobs."
49 " If zero, \"min(jobs,NumberOfCpuCores()/2)\" is used.")
50 FUZZER_FLAG_INT(reload, 1,
51 "Reload the main corpus periodically to get new units"
52 "discovered by other processes.")
53 FUZZER_FLAG_STRING(tokens, "Use the file with tokens (one token per line) to"
54 " fuzz a token based input language.")
55 FUZZER_FLAG_STRING(apply_tokens, "Read the given input file, substitute bytes "
56 " with tokens and write the result to stdout.")
57 FUZZER_FLAG_STRING(sync_command, "Execute an external command "
58 "\"<sync_command> <test_corpus>\" "
59 "to synchronize the test corpus.")
60 FUZZER_FLAG_INT(sync_timeout, 600, "Minimum timeout between syncs.")