tsan_flags.cc revision 87dbdf5fd6cb9f1b90a0a97b7675bd8cad8a0264 
1//===-- tsan_flags.cc -----------------------------------------------------===//
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//
10// This file is a part of ThreadSanitizer (TSan), a race detector.
11//
12//===----------------------------------------------------------------------===//
13
14#include "sanitizer_common/sanitizer_flags.h"
15#include "sanitizer_common/sanitizer_libc.h"
16#include "tsan_flags.h"
17#include "tsan_rtl.h"
18#include "tsan_mman.h"
19
20namespace __tsan {
21
22Flags *flags() {
23  return &CTX()->flags;
24}
25
26// Can be overriden in frontend.
27#ifdef TSAN_EXTERNAL_HOOKS
28void OverrideFlags(Flags *f);
29#else
30void WEAK OverrideFlags(Flags *f) {
31  (void)f;
32}
33#endif
34
35void InitializeFlags(Flags *f, const char *env) {
36  internal_memset(f, 0, sizeof(*f));
37
38  // Default values.
39  f->enable_annotations = true;
40  f->suppress_equal_stacks = true;
41  f->suppress_equal_addresses = true;
42  f->report_thread_leaks = true;
43  f->report_signal_unsafe = true;
44  f->force_seq_cst_atomics = false;
45  f->strip_path_prefix = "";
46  f->suppressions = "";
47  f->exitcode = 66;
48  f->log_fileno = 2;
49  f->atexit_sleep_ms = 1000;
50  f->verbosity = 0;
51  f->profile_memory = "";
52  f->flush_memory_ms = 0;
53  f->stop_on_start = false;
54  f->running_on_valgrind = false;
55  f->use_internal_symbolizer = false;
56
57  // Let a frontend override.
58  OverrideFlags(f);
59
60  // Override from command line.
61  ParseFlag(env, &f->enable_annotations, "enable_annotations");
62  ParseFlag(env, &f->suppress_equal_stacks, "suppress_equal_stacks");
63  ParseFlag(env, &f->suppress_equal_addresses, "suppress_equal_addresses");
64  ParseFlag(env, &f->report_thread_leaks, "report_thread_leaks");
65  ParseFlag(env, &f->report_signal_unsafe, "report_signal_unsafe");
66  ParseFlag(env, &f->force_seq_cst_atomics, "force_seq_cst_atomics");
67  ParseFlag(env, &f->strip_path_prefix, "strip_path_prefix");
68  ParseFlag(env, &f->suppressions, "suppressions");
69  ParseFlag(env, &f->exitcode, "exitcode");
70  ParseFlag(env, &f->log_fileno, "log_fileno");
71  ParseFlag(env, &f->atexit_sleep_ms, "atexit_sleep_ms");
72  ParseFlag(env, &f->verbosity, "verbosity");
73  ParseFlag(env, &f->profile_memory, "profile_memory");
74  ParseFlag(env, &f->flush_memory_ms, "flush_memory_ms");
75  ParseFlag(env, &f->stop_on_start, "stop_on_start");
76  ParseFlag(env, &f->use_internal_symbolizer, "use_internal_symbolizer");
77}
78
79}  // namespace __tsan
80