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(runs, -1,
16 "Number of individual test runs (-1 for infinite runs).")
17 FUZZER_FLAG_INT(max_len, 64, "Maximum length of the test input.")
18 FUZZER_FLAG_INT(cross_over, 1, "If 1, cross over inputs.")
19 FUZZER_FLAG_INT(mutate_depth, 5,
20 "Apply this number of consecutive mutations to each input.")
21 FUZZER_FLAG_INT(shuffle, 1, "Shuffle inputs at startup")
23 prefer_small_during_initial_shuffle, -1,
24 "If 1, always prefer smaller inputs during the initial corpus shuffle."
25 " If 0, never do that. If -1, do it sometimes.")
26 FUZZER_FLAG_INT(exit_on_first, 0,
27 "If 1, exit after the first new interesting input is found.")
30 "Timeout in seconds (if positive). "
31 "If one unit runs more than this number of seconds the process will abort.")
32 FUZZER_FLAG_INT(max_total_time, 0, "If positive, indicates the maximal total "
33 "time in seconds to run the fuzzer.")
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 "Example: ./fuzzer -save_minimized_corpus=1 NEW_EMPTY_DIR OLD_CORPUS")
39 FUZZER_FLAG_INT(merge, 0, "If 1, the 2-nd, 3-rd, etc corpora will be "
40 "merged into the 1-st corpus. Only interesting units will be taken.")
41 FUZZER_FLAG_INT(use_counters, 1, "Use coverage counters")
42 FUZZER_FLAG_INT(use_indir_calls, 1, "Use indirect caller-callee counters")
43 FUZZER_FLAG_INT(use_traces, 0, "Experimental: use instruction traces")
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(sync_command, "Execute an external command "
54 "\"<sync_command> <test_corpus>\" "
55 "to synchronize the test corpus.")
56 FUZZER_FLAG_INT(sync_timeout, 600, "Minimum timeout between syncs.")
57 FUZZER_FLAG_INT(report_slow_units, 10,
58 "Report slowest units if they run for more than this number of seconds.")
59 FUZZER_FLAG_INT(only_ascii, 0,
60 "If 1, generate only ASCII (isprint+isspace) inputs.")
61 FUZZER_FLAG_STRING(dict, "Experimental. Use the dictionary file.")
62 FUZZER_FLAG_INT(tbm_depth, 5, "Apply at most this number of consecutive"
63 "trace-based-mutations (tbm).")
64 FUZZER_FLAG_INT(tbm_width, 5, "Apply at most this number of independent"
65 "trace-based-mutations (tbm)")
66 FUZZER_FLAG_STRING(test_single_input, "Use specified file as test input.")
67 FUZZER_FLAG_STRING(artifact_prefix, "Write fuzzing artifacts (crash, "
68 "timeout, or slow inputs) as "
69 "$(artifact_prefix)file")
70 FUZZER_FLAG_INT(drill, 0, "Experimental: fuzz using a single unit as the seed "
71 "corpus, then merge with the initial corpus")
72 FUZZER_FLAG_INT(output_csv, 0, "Enable pulse output in CSV format.")