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(cross_over, 1, "If 1, cross over inputs.") 21 FUZZER_FLAG_INT(mutate_depth, 5, 22 "Apply this number of consecutive mutations to each input.") 23 FUZZER_FLAG_INT(shuffle, 1, "Shuffle inputs at startup") 24 FUZZER_FLAG_INT(prefer_small, 1, 25 "If 1, always prefer smaller inputs during the corpus shuffle.") 26 FUZZER_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.") 30 FUZZER_FLAG_INT(timeout_exitcode, 77, 31 "Unless abort_on_timeout is set, use this exitcode on timeout.") 32 FUZZER_FLAG_INT(error_exit_code, 77, "When libFuzzer's signal handlers are in " 33 "use exit with this exitcode after catching a deadly signal.") 34 FUZZER_FLAG_INT(max_total_time, 0, "If positive, indicates the maximal total " 35 "time in seconds to run the fuzzer.") 36 FUZZER_FLAG_INT(help, 0, "Print help.") 37 FUZZER_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.") 40 FUZZER_FLAG_INT(use_counters, 1, "Use coverage counters") 41 FUZZER_FLAG_INT(use_indir_calls, 1, "Use indirect caller-callee counters") 42 FUZZER_FLAG_INT(use_traces, 0, "Experimental: use instruction traces") 43 FUZZER_FLAG_INT(use_memcmp, 1, 44 "Use hints from intercepting memcmp, strcmp, etc") 45 FUZZER_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.") 48 FUZZER_FLAG_INT(workers, 0, 49 "Number of simultaneous worker processes to run the jobs." 50 " If zero, \"min(jobs,NumberOfCpuCores()/2)\" is used.") 51 FUZZER_FLAG_INT(reload, 1, 52 "Reload the main corpus periodically to get new units" 53 " discovered by other processes.") 54 FUZZER_FLAG_INT(report_slow_units, 10, 55 "Report slowest units if they run for more than this number of seconds.") 56 FUZZER_FLAG_INT(only_ascii, 0, 57 "If 1, generate only ASCII (isprint+isspace) inputs.") 58 FUZZER_FLAG_STRING(dict, "Experimental. Use the dictionary file.") 59 FUZZER_FLAG_STRING(artifact_prefix, "Write fuzzing artifacts (crash, " 60 "timeout, or slow inputs) as " 61 "$(artifact_prefix)file") 62 FUZZER_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.") 67 FUZZER_FLAG_INT(drill, 0, "Experimental: fuzz using a single unit as the seed " 68 "corpus, then merge with the initial corpus") 69 FUZZER_FLAG_INT(output_csv, 0, "Enable pulse output in CSV format.") 70 FUZZER_FLAG_INT(print_new_cov_pcs, 0, "If 1, print out new covered pcs.") 71 FUZZER_FLAG_INT(print_final_stats, 0, "If 1, print statistics at exit.") 72 73 FUZZER_FLAG_INT(handle_segv, 1, "If 1, try to intercept SIGSEGV.") 74 FUZZER_FLAG_INT(handle_bus, 1, "If 1, try to intercept SIGSEGV.") 75 FUZZER_FLAG_INT(handle_abrt, 1, "If 1, try to intercept SIGABRT.") 76 FUZZER_FLAG_INT(handle_ill, 1, "If 1, try to intercept SIGILL.") 77 FUZZER_FLAG_INT(handle_fpe, 1, "If 1, try to intercept SIGFPE.") 78 FUZZER_FLAG_INT(handle_int, 1, "If 1, try to intercept SIGINT.") 79 FUZZER_FLAG_INT(handle_term, 1, "If 1, try to intercept SIGTERM.") 80 FUZZER_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.") 83 FUZZER_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).") 85 FUZZER_FLAG_INT(rss_limit_mb, 2048, "If non-zero, the fuzzer will exit upon" 86 "reaching this limit of RSS memory usage.") 87 FUZZER_FLAG_INT(truncate_units, 0, "Try truncated units when loading corpus.") 88 FUZZER_FLAG_INT(prune_corpus, 1, "Prune corpus items without new coverage when " 89 "loading corpus.") 90 91 FUZZER_DEPRECATED_FLAG(exit_on_first) 92 FUZZER_DEPRECATED_FLAG(save_minimized_corpus) 93 FUZZER_DEPRECATED_FLAG(sync_command) 94 FUZZER_DEPRECATED_FLAG(sync_timeout) 95 FUZZER_DEPRECATED_FLAG(test_single_input) 96
