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