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 //===----------------------------------------------------------------------===// 13 FUZZER_FLAG_INT(verbosity, 1, "Verbosity level.") 14 FUZZER_FLAG_UNSIGNED(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, 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. ") 20 FUZZER_FLAG_INT(experimental_len_control, 0, "experimental flag") 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.") 24 FUZZER_FLAG_INT(shuffle, 1, "Shuffle inputs at startup") 25 FUZZER_FLAG_INT(prefer_small, 1, 26 "If 1, always prefer smaller inputs during the corpus shuffle.") 27 FUZZER_FLAG_INT( 28 timeout, 1200, 29 "Timeout in seconds (if positive). " 30 "If one unit runs more than this number of seconds the process will abort.") 31 FUZZER_FLAG_INT(error_exitcode, 77, "When libFuzzer itself reports a bug " 32 "this exit code will be used.") 33 FUZZER_FLAG_INT(timeout_exitcode, 77, "When libFuzzer reports a timeout " 34 "this exit code will be used.") 35 FUZZER_FLAG_INT(max_total_time, 0, "If positive, indicates the maximal total " 36 "time in seconds to run the fuzzer.") 37 FUZZER_FLAG_INT(help, 0, "Print help.") 38 FUZZER_FLAG_INT(merge, 0, "If 1, the 2-nd, 3-rd, etc corpora will be " 39 "merged into the 1-st corpus. Only interesting units will be taken. " 40 "This flag can be used to minimize a corpus.") 41 FUZZER_FLAG_STRING(merge_control_file, "internal flag") 42 FUZZER_FLAG_STRING(save_coverage_summary, "Experimental:" 43 " save coverage summary to a given file." 44 " Used with -merge=1") 45 FUZZER_FLAG_STRING(load_coverage_summary, "Experimental:" 46 " load coverage summary from a given file." 47 " Treat this coverage as belonging to the first corpus. " 48 " Used with -merge=1") 49 FUZZER_FLAG_INT(minimize_crash, 0, "If 1, minimizes the provided" 50 " crash input. Use with -runs=N or -max_total_time=N to limit " 51 "the number attempts." 52 " Use with -exact_artifact_path to specify the output." 53 " Combine with ASAN_OPTIONS=dedup_token_length=3 (or similar) to ensure that" 54 " the minimized input triggers the same crash." 55 ) 56 FUZZER_FLAG_INT(cleanse_crash, 0, "If 1, tries to cleanse the provided" 57 " crash input to make it contain fewer original bytes." 58 " Use with -exact_artifact_path to specify the output." 59 ) 60 FUZZER_FLAG_INT(minimize_crash_internal_step, 0, "internal flag") 61 FUZZER_FLAG_INT(use_counters, 1, "Use coverage counters") 62 FUZZER_FLAG_INT(use_indir_calls, 1, "Use indirect caller-callee counters") 63 FUZZER_FLAG_INT(use_memmem, 1, 64 "Use hints from intercepting memmem, strstr, etc") 65 FUZZER_FLAG_INT(use_value_profile, 0, 66 "Experimental. Use value profile to guide fuzzing.") 67 FUZZER_FLAG_INT(use_cmp, 1, "Use CMP traces to guide mutations") 68 FUZZER_FLAG_INT(shrink, 0, "Experimental. Try to shrink corpus elements.") 69 FUZZER_FLAG_UNSIGNED(jobs, 0, "Number of jobs to run. If jobs >= 1 we spawn" 70 " this number of jobs in separate worker processes" 71 " with stdout/stderr redirected to fuzz-JOB.log.") 72 FUZZER_FLAG_UNSIGNED(workers, 0, 73 "Number of simultaneous worker processes to run the jobs." 74 " If zero, \"min(jobs,NumberOfCpuCores()/2)\" is used.") 75 FUZZER_FLAG_INT(reload, 1, 76 "Reload the main corpus every <N> seconds to get new units" 77 " discovered by other processes. If 0, disabled") 78 FUZZER_FLAG_INT(report_slow_units, 10, 79 "Report slowest units if they run for more than this number of seconds.") 80 FUZZER_FLAG_INT(only_ascii, 0, 81 "If 1, generate only ASCII (isprint+isspace) inputs.") 82 FUZZER_FLAG_STRING(dict, "Experimental. Use the dictionary file.") 83 FUZZER_FLAG_STRING(artifact_prefix, "Write fuzzing artifacts (crash, " 84 "timeout, or slow inputs) as " 85 "$(artifact_prefix)file") 86 FUZZER_FLAG_STRING(exact_artifact_path, 87 "Write the single artifact on failure (crash, timeout) " 88 "as $(exact_artifact_path). This overrides -artifact_prefix " 89 "and will not use checksum in the file name. Do not " 90 "use the same path for several parallel processes.") 91 FUZZER_FLAG_INT(print_pcs, 0, "If 1, print out newly covered PCs.") 92 FUZZER_FLAG_INT(print_final_stats, 0, "If 1, print statistics at exit.") 93 FUZZER_FLAG_INT(print_corpus_stats, 0, 94 "If 1, print statistics on corpus elements at exit.") 95 FUZZER_FLAG_INT(print_coverage, 0, "If 1, print coverage information as text" 96 " at exit.") 97 FUZZER_FLAG_INT(dump_coverage, 0, "If 1, dump coverage information as a" 98 " .sancov file at exit.") 99 FUZZER_FLAG_INT(handle_segv, 1, "If 1, try to intercept SIGSEGV.") 100 FUZZER_FLAG_INT(handle_bus, 1, "If 1, try to intercept SIGBUS.") 101 FUZZER_FLAG_INT(handle_abrt, 1, "If 1, try to intercept SIGABRT.") 102 FUZZER_FLAG_INT(handle_ill, 1, "If 1, try to intercept SIGILL.") 103 FUZZER_FLAG_INT(handle_fpe, 1, "If 1, try to intercept SIGFPE.") 104 FUZZER_FLAG_INT(handle_int, 1, "If 1, try to intercept SIGINT.") 105 FUZZER_FLAG_INT(handle_term, 1, "If 1, try to intercept SIGTERM.") 106 FUZZER_FLAG_INT(handle_xfsz, 1, "If 1, try to intercept SIGXFSZ.") 107 FUZZER_FLAG_INT(close_fd_mask, 0, "If 1, close stdout at startup; " 108 "if 2, close stderr; if 3, close both. " 109 "Be careful, this will also close e.g. asan's stderr/stdout.") 110 FUZZER_FLAG_INT(detect_leaks, 1, "If 1, and if LeakSanitizer is enabled " 111 "try to detect memory leaks during fuzzing (i.e. not only at shut down).") 112 FUZZER_FLAG_INT(trace_malloc, 0, "If >= 1 will print all mallocs/frees. " 113 "If >= 2 will also print stack traces.") 114 FUZZER_FLAG_INT(rss_limit_mb, 2048, "If non-zero, the fuzzer will exit upon" 115 "reaching this limit of RSS memory usage.") 116 FUZZER_FLAG_STRING(exit_on_src_pos, "Exit if a newly found PC originates" 117 " from the given source location. Example: -exit_on_src_pos=foo.cc:123. " 118 "Used primarily for testing libFuzzer itself.") 119 FUZZER_FLAG_STRING(exit_on_item, "Exit if an item with a given sha1 sum" 120 " was added to the corpus. " 121 "Used primarily for testing libFuzzer itself.") 122 123 FUZZER_FLAG_STRING(run_equivalence_server, "Experimental") 124 FUZZER_FLAG_STRING(use_equivalence_server, "Experimental") 125 FUZZER_FLAG_INT(analyze_dict, 0, "Experimental") 126 127 FUZZER_DEPRECATED_FLAG(exit_on_first) 128 FUZZER_DEPRECATED_FLAG(save_minimized_corpus) 129 FUZZER_DEPRECATED_FLAG(sync_command) 130 FUZZER_DEPRECATED_FLAG(sync_timeout) 131 FUZZER_DEPRECATED_FLAG(test_single_input) 132 FUZZER_DEPRECATED_FLAG(drill) 133 FUZZER_DEPRECATED_FLAG(truncate_units) 134 FUZZER_DEPRECATED_FLAG(output_csv) 135
