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1 //===-- tsan_flags.inc ------------------------------------------*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8 //
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9 // TSan runtime flags.
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10 //
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11 //===----------------------------------------------------------------------===//
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12 #ifndef TSAN_FLAG
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13 # error "Define TSAN_FLAG prior to including this file!"
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14 #endif
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15
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16 // TSAN_FLAG(Type, Name, DefaultValue, Description)
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17 // See COMMON_FLAG in sanitizer_flags.inc for more details.
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18
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19 TSAN_FLAG(bool, enable_annotations, true,
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20 "Enable dynamic annotations, otherwise they are no-ops.")
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21 // Suppress a race report if we've already output another race report
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22 // with the same stack.
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23 TSAN_FLAG(bool, suppress_equal_stacks, true,
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24 "Suppress a race report if we've already output another race report "
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25 "with the same stack.")
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26 TSAN_FLAG(bool, suppress_equal_addresses, true,
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27 "Suppress a race report if we've already output another race report "
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28 "on the same address.")
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29
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30 TSAN_FLAG(bool, report_bugs, true,
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31 "Turns off bug reporting entirely (useful for benchmarking).")
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32 TSAN_FLAG(bool, report_thread_leaks, true, "Report thread leaks at exit?")
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33 TSAN_FLAG(bool, report_destroy_locked, true,
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34 "Report destruction of a locked mutex?")
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35 TSAN_FLAG(bool, report_mutex_bugs, true,
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36 "Report incorrect usages of mutexes and mutex annotations?")
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37 TSAN_FLAG(bool, report_signal_unsafe, true,
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38 "Report violations of async signal-safety "
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39 "(e.g. malloc() call from a signal handler).")
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40 TSAN_FLAG(bool, report_atomic_races, true,
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41 "Report races between atomic and plain memory accesses.")
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42 TSAN_FLAG(
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43 bool, force_seq_cst_atomics, false,
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44 "If set, all atomics are effectively sequentially consistent (seq_cst), "
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45 "regardless of what user actually specified.")
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46 TSAN_FLAG(bool, print_benign, false, "Print matched \"benign\" races at exit.")
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47 TSAN_FLAG(bool, halt_on_error, false, "Exit after first reported error.")
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48 TSAN_FLAG(int, atexit_sleep_ms, 1000,
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49 "Sleep in main thread before exiting for that many ms "
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50 "(useful to catch \"at exit\" races).")
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51 TSAN_FLAG(const char *, profile_memory, "",
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52 "If set, periodically write memory profile to that file.")
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53 TSAN_FLAG(int, flush_memory_ms, 0, "Flush shadow memory every X ms.")
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54 TSAN_FLAG(int, flush_symbolizer_ms, 5000, "Flush symbolizer caches every X ms.")
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55 TSAN_FLAG(
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56 int, memory_limit_mb, 0,
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57 "Resident memory limit in MB to aim at."
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58 "If the process consumes more memory, then TSan will flush shadow memory.")
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59 TSAN_FLAG(bool, stop_on_start, false,
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60 "Stops on start until __tsan_resume() is called (for debugging).")
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61 TSAN_FLAG(bool, running_on_valgrind, false,
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62 "Controls whether RunningOnValgrind() returns true or false.")
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63 // There are a lot of goroutines in Go, so we use smaller history.
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64 TSAN_FLAG(
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65 int, history_size, SANITIZER_GO ? 1 : 3,
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66 "Per-thread history size, controls how many previous memory accesses "
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67 "are remembered per thread. Possible values are [0..7]. "
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68 "history_size=0 amounts to 32K memory accesses. Each next value doubles "
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69 "the amount of memory accesses, up to history_size=7 that amounts to "
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70 "4M memory accesses. The default value is 2 (128K memory accesses).")
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71 TSAN_FLAG(int, io_sync, 1,
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72 "Controls level of synchronization implied by IO operations. "
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73 "0 - no synchronization "
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74 "1 - reasonable level of synchronization (write->read)"
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75 "2 - global synchronization of all IO operations.")
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76 TSAN_FLAG(bool, die_after_fork, true,
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77 "Die after multi-threaded fork if the child creates new threads.")
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78 TSAN_FLAG(const char *, suppressions, "", "Suppressions file name.")
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79 TSAN_FLAG(bool, ignore_noninstrumented_modules, SANITIZER_MAC ? true : false,
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80 "Interceptors should only detect races when called from instrumented "
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81 "modules.")
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82 TSAN_FLAG(bool, shared_ptr_interceptor, true,
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83 "Track atomic reference counting in libc++ shared_ptr and weak_ptr.")
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