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
20 namespace __tsan {
21
flags()22 Flags *flags() {
23 return &CTX()->flags;
24 }
25
26 // Can be overriden in frontend.
27 #ifdef TSAN_EXTERNAL_HOOKS
28 void OverrideFlags(Flags *f);
29 #else
OverrideFlags(Flags * f)30 void WEAK OverrideFlags(Flags *f) {
31 (void)f;
32 }
33 #endif
34
InitializeFlags(Flags * f,const char * env)35 void 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_destroy_locked = true;
44 f->report_signal_unsafe = true;
45 f->force_seq_cst_atomics = false;
46 f->strip_path_prefix = "";
47 f->suppressions = "";
48 f->exitcode = 66;
49 f->log_fileno = 2;
50 f->atexit_sleep_ms = 1000;
51 f->verbosity = 0;
52 f->profile_memory = "";
53 f->flush_memory_ms = 0;
54 f->stop_on_start = false;
55 f->running_on_valgrind = false;
56 f->external_symbolizer_path = "";
57
58 // Let a frontend override.
59 OverrideFlags(f);
60
61 // Override from command line.
62 ParseFlag(env, &f->enable_annotations, "enable_annotations");
63 ParseFlag(env, &f->suppress_equal_stacks, "suppress_equal_stacks");
64 ParseFlag(env, &f->suppress_equal_addresses, "suppress_equal_addresses");
65 ParseFlag(env, &f->report_thread_leaks, "report_thread_leaks");
66 ParseFlag(env, &f->report_destroy_locked, "report_destroy_locked");
67 ParseFlag(env, &f->report_signal_unsafe, "report_signal_unsafe");
68 ParseFlag(env, &f->force_seq_cst_atomics, "force_seq_cst_atomics");
69 ParseFlag(env, &f->strip_path_prefix, "strip_path_prefix");
70 ParseFlag(env, &f->suppressions, "suppressions");
71 ParseFlag(env, &f->exitcode, "exitcode");
72 ParseFlag(env, &f->log_fileno, "log_fileno");
73 ParseFlag(env, &f->atexit_sleep_ms, "atexit_sleep_ms");
74 ParseFlag(env, &f->verbosity, "verbosity");
75 ParseFlag(env, &f->profile_memory, "profile_memory");
76 ParseFlag(env, &f->flush_memory_ms, "flush_memory_ms");
77 ParseFlag(env, &f->stop_on_start, "stop_on_start");
78 ParseFlag(env, &f->external_symbolizer_path, "external_symbolizer_path");
79 }
80
81 } // namespace __tsan
82