Function InitializeFlags

system/lib/compiler-rt/lib/lsan/lsan.cpp:56–104

using namespace __lsan;

static void InitializeFlags() {
  // Set all the default values.
  SetCommonFlagsDefaults();
  {
    CommonFlags cf;
    cf.CopyFrom(*common_flags());
#if !SANITIZER_EMSCRIPTEN
    // getenv on emscripten uses malloc, which we can't when using LSan.
    // You can't run external symbolizers anyway.
    cf.external_symbolizer_path = GetEnv("LSAN_SYMBOLIZER_PATH");
#endif
    cf.malloc_context_size = 30;
    cf.intercept_tls_get_addr = true;
    cf.detect_leaks = true;
    cf.exitcode = 23;
    OverrideCommonFlags(cf);
  }

  Flags *f = flags();
  f->SetDefaults();

  FlagParser parser;
  RegisterLsanFlags(&parser, f);
  RegisterCommonFlags(&parser);

  // Override from user-specified string.
  const char *lsan_default_options = __lsan_default_options();
  parser.ParseString(lsan_default_options);
#if SANITIZER_EMSCRIPTEN
  char *options = _emscripten_sanitizer_get_option("LSAN_OPTIONS");
  parser.ParseString(options);
  free(options);
#else
  parser.ParseString(GetEnv("LSAN_OPTIONS"));
#endif // SANITIZER_EMSCRIPTEN

#if SANITIZER_EMSCRIPTEN
  if (common_flags()->malloc_context_size <= 1)
    StackTrace::snapshot_stack = false;
#endif // SANITIZER_EMSCRIPTEN

  InitializeCommonFlags();

  if (Verbosity()) ReportUnrecognizedFlags();

  if (common_flags()->help) parser.PrintFlagDescriptions();

  __sanitizer_set_report_path(common_flags()->log_path);
}

extern "C" void __lsan_init() {
  CHECK(!lsan_init_is_running);