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(error_exitcode, 77, "When libFuzzer itself reports a bug " 31 "this exit code will be used.") 32FUZZER_FLAG_INT(timeout_exitcode, 77, "When libFuzzer reports a timeout " 33 "this exit code will be used.") 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_STRING(merge_control_file, "internal flag") 41FUZZER_FLAG_INT(minimize_crash, 0, "If 1, minimizes the provided" 42 " crash input. Use with -runs=N or -max_total_time=N to limit " 43 "the number attempts") 44FUZZER_FLAG_INT(minimize_crash_internal_step, 0, "internal flag") 45FUZZER_FLAG_INT(use_counters, 1, "Use coverage counters") 46FUZZER_FLAG_INT(use_indir_calls, 1, "Use indirect caller-callee counters") 47FUZZER_FLAG_INT(use_memcmp, 1, 48 "Use hints from intercepting memcmp, strcmp, etc") 49FUZZER_FLAG_INT(use_memmem, 1, 50 "Use hints from intercepting memmem, strstr, etc") 51FUZZER_FLAG_INT(use_value_profile, 0, 52 "Experimental. Use value profile to guide fuzzing.") 53FUZZER_FLAG_INT(use_cmp, 1, "Use CMP traces to guide mutations") 54FUZZER_FLAG_INT(shrink, 0, "Experimental. Try to shrink corpus elements.") 55FUZZER_FLAG_UNSIGNED(jobs, 0, "Number of jobs to run. If jobs >= 1 we spawn" 56 " this number of jobs in separate worker processes" 57 " with stdout/stderr redirected to fuzz-JOB.log.") 58FUZZER_FLAG_UNSIGNED(workers, 0, 59 "Number of simultaneous worker processes to run the jobs." 60 " If zero, \"min(jobs,NumberOfCpuCores()/2)\" is used.") 61FUZZER_FLAG_INT(reload, 1, 62 "Reload the main corpus every <N> seconds to get new units" 63 " discovered by other processes. If 0, disabled") 64FUZZER_FLAG_INT(report_slow_units, 10, 65 "Report slowest units if they run for more than this number of seconds.") 66FUZZER_FLAG_INT(only_ascii, 0, 67 "If 1, generate only ASCII (isprint+isspace) inputs.") 68FUZZER_FLAG_STRING(dict, "Experimental. Use the dictionary file.") 69FUZZER_FLAG_STRING(artifact_prefix, "Write fuzzing artifacts (crash, " 70 "timeout, or slow inputs) as " 71 "$(artifact_prefix)file") 72FUZZER_FLAG_STRING(exact_artifact_path, 73 "Write the single artifact on failure (crash, timeout) " 74 "as $(exact_artifact_path). This overrides -artifact_prefix " 75 "and will not use checksum in the file name. Do not " 76 "use the same path for several parallel processes.") 77FUZZER_FLAG_INT(output_csv, 0, "Enable pulse output in CSV format.") 78FUZZER_FLAG_INT(print_pcs, 0, "If 1, print out newly covered PCs.") 79FUZZER_FLAG_INT(print_final_stats, 0, "If 1, print statistics at exit.") 80FUZZER_FLAG_INT(print_corpus_stats, 0, 81 "If 1, print statistics on corpus elements at exit.") 82FUZZER_FLAG_INT(print_coverage, 0, "If 1, print coverage information at exit." 83 " Experimental, only with trace-pc-guard") 84FUZZER_FLAG_INT(dump_coverage, 0, "If 1, dump coverage information at exit." 85 " Experimental, only with trace-pc-guard") 86FUZZER_FLAG_INT(handle_segv, 1, "If 1, try to intercept SIGSEGV.") 87FUZZER_FLAG_INT(handle_bus, 1, "If 1, try to intercept SIGSEGV.") 88FUZZER_FLAG_INT(handle_abrt, 1, "If 1, try to intercept SIGABRT.") 89FUZZER_FLAG_INT(handle_ill, 1, "If 1, try to intercept SIGILL.") 90FUZZER_FLAG_INT(handle_fpe, 1, "If 1, try to intercept SIGFPE.") 91FUZZER_FLAG_INT(handle_int, 1, "If 1, try to intercept SIGINT.") 92FUZZER_FLAG_INT(handle_term, 1, "If 1, try to intercept SIGTERM.") 93FUZZER_FLAG_INT(close_fd_mask, 0, "If 1, close stdout at startup; " 94 "if 2, close stderr; if 3, close both. " 95 "Be careful, this will also close e.g. asan's stderr/stdout.") 96FUZZER_FLAG_INT(detect_leaks, 1, "If 1, and if LeakSanitizer is enabled " 97 "try to detect memory leaks during fuzzing (i.e. not only at shut down).") 98FUZZER_FLAG_INT(trace_malloc, 0, "If >= 1 will print all mallocs/frees. " 99 "If >= 2 will also print stack traces.") 100FUZZER_FLAG_INT(rss_limit_mb, 2048, "If non-zero, the fuzzer will exit upon" 101 "reaching this limit of RSS memory usage.") 102FUZZER_FLAG_STRING(exit_on_src_pos, "Exit if a newly found PC originates" 103 " from the given source location. Example: -exit_on_src_pos=foo.cc:123. " 104 "Used primarily for testing libFuzzer itself.") 105FUZZER_FLAG_STRING(exit_on_item, "Exit if an item with a given sha1 sum" 106 " was added to the corpus. " 107 "Used primarily for testing libFuzzer itself.") 108 109FUZZER_DEPRECATED_FLAG(exit_on_first) 110FUZZER_DEPRECATED_FLAG(save_minimized_corpus) 111FUZZER_DEPRECATED_FLAG(sync_command) 112FUZZER_DEPRECATED_FLAG(sync_timeout) 113FUZZER_DEPRECATED_FLAG(test_single_input) 114FUZZER_DEPRECATED_FLAG(drill) 115FUZZER_DEPRECATED_FLAG(truncate_units) 116