| //===- FuzzerFlags.def - Run-time flags -------------------------*- C++ -* ===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // Flags. FUZZER_FLAG_INT/FUZZER_FLAG_STRING macros should be defined at the |
| // point of inclusion. We are not using any flag parsing library for better |
| // portability and independence. |
| //===----------------------------------------------------------------------===// |
| FUZZER_FLAG_INT(verbosity, 1, "Verbosity level.") |
| FUZZER_FLAG_UNSIGNED(seed, 0, "Random seed. If 0, seed is generated.") |
| FUZZER_FLAG_INT(runs, -1, |
| "Number of individual test runs (-1 for infinite runs).") |
| FUZZER_FLAG_INT(max_len, 0, "Maximum length of the test input. " |
| "If 0, libFuzzer tries to guess a good value based on the corpus " |
| "and reports it. ") |
| FUZZER_FLAG_INT(len_control, 1000, "Try generating small inputs first, " |
| "then try larger inputs over time. Specifies the rate at which the length " |
| "limit is increased (smaller == faster). If 0, immediately try inputs with " |
| "size up to max_len.") |
| FUZZER_FLAG_INT(cross_over, 1, "If 1, cross over inputs.") |
| FUZZER_FLAG_INT(mutate_depth, 5, |
| "Apply this number of consecutive mutations to each input.") |
| FUZZER_FLAG_INT(reduce_depth, 0, "Experimental/internal. " |
| "Reduce depth if mutations lose unique features") |
| FUZZER_FLAG_INT(shuffle, 1, "Shuffle inputs at startup") |
| FUZZER_FLAG_INT(prefer_small, 1, |
| "If 1, always prefer smaller inputs during the corpus shuffle.") |
| FUZZER_FLAG_INT( |
| timeout, 1200, |
| "Timeout in seconds (if positive). " |
| "If one unit runs more than this number of seconds the process will abort.") |
| FUZZER_FLAG_INT(error_exitcode, 77, "When libFuzzer itself reports a bug " |
| "this exit code will be used.") |
| FUZZER_FLAG_INT(timeout_exitcode, 77, "When libFuzzer reports a timeout " |
| "this exit code will be used.") |
| FUZZER_FLAG_INT(max_total_time, 0, "If positive, indicates the maximal total " |
| "time in seconds to run the fuzzer.") |
| FUZZER_FLAG_INT(help, 0, "Print help.") |
| FUZZER_FLAG_INT(merge, 0, "If 1, the 2-nd, 3-rd, etc corpora will be " |
| "merged into the 1-st corpus. Only interesting units will be taken. " |
| "This flag can be used to minimize a corpus.") |
| FUZZER_FLAG_STRING(merge_inner, "internal flag") |
| FUZZER_FLAG_STRING(merge_control_file, |
| "Specify a control file used for the merge process. " |
| "If a merge process gets killed it tries to leave this file " |
| "in a state suitable for resuming the merge. " |
| "By default a temporary file will be used.") |
| FUZZER_FLAG_STRING(save_coverage_summary, "Experimental:" |
| " save coverage summary to a given file." |
| " Used with -merge=1") |
| FUZZER_FLAG_STRING(load_coverage_summary, "Experimental:" |
| " load coverage summary from a given file." |
| " Treat this coverage as belonging to the first corpus. " |
| " Used with -merge=1") |
| FUZZER_FLAG_INT(minimize_crash, 0, "If 1, minimizes the provided" |
| " crash input. Use with -runs=N or -max_total_time=N to limit " |
| "the number attempts." |
| " Use with -exact_artifact_path to specify the output." |
| " Combine with ASAN_OPTIONS=dedup_token_length=3 (or similar) to ensure that" |
| " the minimized input triggers the same crash." |
| ) |
| FUZZER_FLAG_INT(cleanse_crash, 0, "If 1, tries to cleanse the provided" |
| " crash input to make it contain fewer original bytes." |
| " Use with -exact_artifact_path to specify the output." |
| ) |
| FUZZER_FLAG_INT(minimize_crash_internal_step, 0, "internal flag") |
| FUZZER_FLAG_INT(use_counters, 1, "Use coverage counters") |
| FUZZER_FLAG_INT(use_memmem, 1, |
| "Use hints from intercepting memmem, strstr, etc") |
| FUZZER_FLAG_INT(use_value_profile, 0, |
| "Experimental. Use value profile to guide fuzzing.") |
| FUZZER_FLAG_INT(use_cmp, 1, "Use CMP traces to guide mutations") |
| FUZZER_FLAG_INT(shrink, 0, "Experimental. Try to shrink corpus inputs.") |
| FUZZER_FLAG_INT(reduce_inputs, 1, |
| "Try to reduce the size of inputs while preserving their full feature sets") |
| FUZZER_FLAG_UNSIGNED(jobs, 0, "Number of jobs to run. If jobs >= 1 we spawn" |
| " this number of jobs in separate worker processes" |
| " with stdout/stderr redirected to fuzz-JOB.log.") |
| FUZZER_FLAG_UNSIGNED(workers, 0, |
| "Number of simultaneous worker processes to run the jobs." |
| " If zero, \"min(jobs,NumberOfCpuCores()/2)\" is used.") |
| FUZZER_FLAG_INT(reload, 1, |
| "Reload the main corpus every <N> seconds to get new units" |
| " discovered by other processes. If 0, disabled") |
| FUZZER_FLAG_INT(report_slow_units, 10, |
| "Report slowest units if they run for more than this number of seconds.") |
| FUZZER_FLAG_INT(only_ascii, 0, |
| "If 1, generate only ASCII (isprint+isspace) inputs.") |
| FUZZER_FLAG_STRING(dict, "Experimental. Use the dictionary file.") |
| FUZZER_FLAG_STRING(artifact_prefix, "Write fuzzing artifacts (crash, " |
| "timeout, or slow inputs) as " |
| "$(artifact_prefix)file") |
| FUZZER_FLAG_STRING(exact_artifact_path, |
| "Write the single artifact on failure (crash, timeout) " |
| "as $(exact_artifact_path). This overrides -artifact_prefix " |
| "and will not use checksum in the file name. Do not " |
| "use the same path for several parallel processes.") |
| FUZZER_FLAG_INT(print_pcs, 0, "If 1, print out newly covered PCs.") |
| FUZZER_FLAG_INT(print_funcs, 2, "If >=1, print out at most this number of " |
| "newly covered functions.") |
| FUZZER_FLAG_INT(print_final_stats, 0, "If 1, print statistics at exit.") |
| FUZZER_FLAG_INT(print_corpus_stats, 0, |
| "If 1, print statistics on corpus elements at exit.") |
| FUZZER_FLAG_INT(print_coverage, 0, "If 1, print coverage information as text" |
| " at exit.") |
| FUZZER_FLAG_INT(dump_coverage, 0, "Deprecated." |
| " If 1, dump coverage information as a" |
| " .sancov file at exit.") |
| FUZZER_FLAG_INT(handle_unstable, 0, "Experimental." |
| " Executes every input 3 times in total if a unique feature" |
| " is found during the first execution." |
| " If 1, we only use the minimum hit count from the 3 runs" |
| " to determine whether an input is interesting." |
| " If 2, we disregard edges that are found unstable for" |
| " feature collection.") |
| FUZZER_FLAG_INT(print_unstable_stats, 0, "Experimental." |
| " If 1, print unstable statistics at exit.") |
| FUZZER_FLAG_INT(handle_segv, 1, "If 1, try to intercept SIGSEGV.") |
| FUZZER_FLAG_INT(handle_bus, 1, "If 1, try to intercept SIGBUS.") |
| FUZZER_FLAG_INT(handle_abrt, 1, "If 1, try to intercept SIGABRT.") |
| FUZZER_FLAG_INT(handle_ill, 1, "If 1, try to intercept SIGILL.") |
| FUZZER_FLAG_INT(handle_fpe, 1, "If 1, try to intercept SIGFPE.") |
| FUZZER_FLAG_INT(handle_int, 1, "If 1, try to intercept SIGINT.") |
| FUZZER_FLAG_INT(handle_term, 1, "If 1, try to intercept SIGTERM.") |
| FUZZER_FLAG_INT(handle_xfsz, 1, "If 1, try to intercept SIGXFSZ.") |
| FUZZER_FLAG_INT(handle_usr1, 1, "If 1, try to intercept SIGUSR1.") |
| FUZZER_FLAG_INT(handle_usr2, 1, "If 1, try to intercept SIGUSR2.") |
| FUZZER_FLAG_INT(close_fd_mask, 0, "If 1, close stdout at startup; " |
| "if 2, close stderr; if 3, close both. " |
| "Be careful, this will also close e.g. stderr of asan.") |
| FUZZER_FLAG_INT(detect_leaks, 1, "If 1, and if LeakSanitizer is enabled " |
| "try to detect memory leaks during fuzzing (i.e. not only at shut down).") |
| FUZZER_FLAG_INT(purge_allocator_interval, 1, "Purge allocator caches and " |
| "quarantines every <N> seconds. When rss_limit_mb is specified (>0), " |
| "purging starts when RSS exceeds 50% of rss_limit_mb. Pass " |
| "purge_allocator_interval=-1 to disable this functionality.") |
| FUZZER_FLAG_INT(trace_malloc, 0, "If >= 1 will print all mallocs/frees. " |
| "If >= 2 will also print stack traces.") |
| FUZZER_FLAG_INT(rss_limit_mb, 2048, "If non-zero, the fuzzer will exit upon" |
| "reaching this limit of RSS memory usage.") |
| FUZZER_FLAG_INT(malloc_limit_mb, 0, "If non-zero, the fuzzer will exit " |
| "if the target tries to allocate this number of Mb with one malloc call. " |
| "If zero (default) same limit as rss_limit_mb is applied.") |
| FUZZER_FLAG_STRING(exit_on_src_pos, "Exit if a newly found PC originates" |
| " from the given source location. Example: -exit_on_src_pos=foo.cc:123. " |
| "Used primarily for testing libFuzzer itself.") |
| FUZZER_FLAG_STRING(exit_on_item, "Exit if an item with a given sha1 sum" |
| " was added to the corpus. " |
| "Used primarily for testing libFuzzer itself.") |
| FUZZER_FLAG_INT(ignore_remaining_args, 0, "If 1, ignore all arguments passed " |
| "after this one. Useful for fuzzers that need to do their own " |
| "argument parsing.") |
| FUZZER_FLAG_STRING(focus_function, "Experimental. " |
| "Fuzzing will focus on inputs that trigger calls to this function") |
| |
| FUZZER_DEPRECATED_FLAG(run_equivalence_server) |
| FUZZER_DEPRECATED_FLAG(use_equivalence_server) |
| FUZZER_FLAG_INT(analyze_dict, 0, "Experimental") |
| FUZZER_DEPRECATED_FLAG(use_clang_coverage) |
| FUZZER_FLAG_STRING(data_flow_trace, "Experimental: use the data flow trace") |
| FUZZER_FLAG_INT(print_mutation_stats, 0, "Experimental") |
