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_UNSIGNED(seed, 0, "Random seed. If 0, seed is generated.")
15FUZZER_FLAG_INT(runs, -1,
16            "Number of individual test runs (-1 for infinite runs).")
17FUZZER_FLAG_INT(max_len, 0, "Maximum length of the test input. "
18    "If 0, libFuzzer tries to guess a good value based on the corpus "
19    "and reports it. ")
20FUZZER_FLAG_INT(cross_over, 1, "If 1, cross over inputs.")
21FUZZER_FLAG_INT(mutate_depth, 5,
22            "Apply this number of consecutive mutations to each input.")
23FUZZER_FLAG_INT(shuffle, 1, "Shuffle inputs at startup")
24FUZZER_FLAG_INT(prefer_small, 1,
25    "If 1, always prefer smaller inputs during the corpus shuffle.")
26FUZZER_FLAG_INT(
27    timeout, 1200,
28    "Timeout in seconds (if positive). "
29    "If one unit runs more than this number of seconds the process will abort.")
30FUZZER_FLAG_INT(timeout_exitcode, 77,
31                "Unless abort_on_timeout is set, use this exitcode on timeout.")
32FUZZER_FLAG_INT(error_exit_code, 77, "When libFuzzer's signal handlers are in "
33  "use exit with this exitcode after catching a deadly signal.")
34FUZZER_FLAG_INT(max_total_time, 0, "If positive, indicates the maximal total "
35                                   "time in seconds to run the fuzzer.")
36FUZZER_FLAG_INT(help, 0, "Print help.")
37FUZZER_FLAG_INT(merge, 0, "If 1, the 2-nd, 3-rd, etc corpora will be "
38  "merged into the 1-st corpus. Only interesting units will be taken. "
39  "This flag can be used to minimize a corpus.")
40FUZZER_FLAG_INT(use_counters, 1, "Use coverage counters")
41FUZZER_FLAG_INT(use_indir_calls, 1, "Use indirect caller-callee counters")
42FUZZER_FLAG_INT(use_traces, 0, "Experimental: use instruction traces")
43FUZZER_FLAG_INT(use_memcmp, 1,
44                "Use hints from intercepting memcmp, strcmp, etc")
45FUZZER_FLAG_INT(jobs, 0, "Number of jobs to run. If jobs >= 1 we spawn"
46                          " this number of jobs in separate worker processes"
47                          " with stdout/stderr redirected to fuzz-JOB.log.")
48FUZZER_FLAG_INT(workers, 0,
49            "Number of simultaneous worker processes to run the jobs."
50            " If zero, \"min(jobs,NumberOfCpuCores()/2)\" is used.")
51FUZZER_FLAG_INT(reload, 1,
52                "Reload the main corpus periodically to get new units"
53                " discovered by other processes.")
54FUZZER_FLAG_INT(report_slow_units, 10,
55    "Report slowest units if they run for more than this number of seconds.")
56FUZZER_FLAG_INT(only_ascii, 0,
57                "If 1, generate only ASCII (isprint+isspace) inputs.")
58FUZZER_FLAG_STRING(dict, "Experimental. Use the dictionary file.")
59FUZZER_FLAG_STRING(artifact_prefix, "Write fuzzing artifacts (crash, "
60                                    "timeout, or slow inputs) as "
61                                    "$(artifact_prefix)file")
62FUZZER_FLAG_STRING(exact_artifact_path,
63                   "Write the single artifact on failure (crash, timeout) "
64                   "as $(exact_artifact_path). This overrides -artifact_prefix "
65                   "and will not use checksum in the file name. Do not "
66                   "use the same path for several parallel processes.")
67FUZZER_FLAG_INT(drill, 0, "Experimental: fuzz using a single unit as the seed "
68                          "corpus, then merge with the initial corpus")
69FUZZER_FLAG_INT(output_csv, 0, "Enable pulse output in CSV format.")
70FUZZER_FLAG_INT(print_new_cov_pcs, 0, "If 1, print out new covered pcs.")
71FUZZER_FLAG_INT(print_final_stats, 0, "If 1, print statistics at exit.")
72
73FUZZER_FLAG_INT(handle_segv, 1, "If 1, try to intercept SIGSEGV.")
74FUZZER_FLAG_INT(handle_bus, 1, "If 1, try to intercept SIGSEGV.")
75FUZZER_FLAG_INT(handle_abrt, 1, "If 1, try to intercept SIGABRT.")
76FUZZER_FLAG_INT(handle_ill, 1, "If 1, try to intercept SIGILL.")
77FUZZER_FLAG_INT(handle_fpe, 1, "If 1, try to intercept SIGFPE.")
78FUZZER_FLAG_INT(handle_int, 1, "If 1, try to intercept SIGINT.")
79FUZZER_FLAG_INT(handle_term, 1, "If 1, try to intercept SIGTERM.")
80FUZZER_FLAG_INT(close_fd_mask, 0, "If 1, close stdout at startup; "
81    "if 2, close stderr; if 3, close both. "
82    "Be careful, this will also close e.g. asan's stderr/stdout.")
83FUZZER_FLAG_INT(detect_leaks, 1, "If 1, and if LeakSanitizer is enabled "
84    "try to detect memory leaks during fuzzing (i.e. not only at shut down).")
85FUZZER_FLAG_INT(rss_limit_mb, 2048, "If non-zero, the fuzzer will exit upon"
86    "reaching this limit of RSS memory usage.")
87FUZZER_FLAG_INT(truncate_units, 0, "Try truncated units when loading corpus.")
88FUZZER_FLAG_INT(prune_corpus, 1, "Prune corpus items without new coverage when "
89                                 "loading corpus.")
90
91FUZZER_DEPRECATED_FLAG(exit_on_first)
92FUZZER_DEPRECATED_FLAG(save_minimized_corpus)
93FUZZER_DEPRECATED_FLAG(sync_command)
94FUZZER_DEPRECATED_FLAG(sync_timeout)
95FUZZER_DEPRECATED_FLAG(test_single_input)
96