Exemplo n.º 1
0
static bool verifyShadowScheme() {
  // Sanity checks for our shadow mapping scheme.
  uptr AppStart, AppEnd;
  if (Verbosity() >= 3) {
    for (int i = 0; getAppRegion(i, &AppStart, &AppEnd); ++i) {
      VPrintf(3, "App #%d: [%zx-%zx) (%zuGB)\n", i, AppStart, AppEnd,
              (AppEnd - AppStart) >> 30);
    }
  }
  for (int Scale = 0; Scale < 8; ++Scale) {
    Mapping.initialize(Scale);
    if (Verbosity() >= 3) {
      VPrintf(3, "\nChecking scale %d\n", Scale);
      uptr ShadowStart, ShadowEnd;
      for (int i = 0; getShadowRegion(i, &ShadowStart, &ShadowEnd); ++i) {
        VPrintf(3, "Shadow #%d: [%zx-%zx) (%zuGB)\n", i, ShadowStart,
                ShadowEnd, (ShadowEnd - ShadowStart) >> 30);
      }
      for (int i = 0; getShadowRegion(i, &ShadowStart, &ShadowEnd); ++i) {
        VPrintf(3, "Shadow(Shadow) #%d: [%zx-%zx)\n", i,
                appToShadow(ShadowStart), appToShadow(ShadowEnd - 1)+1);
      }
    }
    for (int i = 0; getAppRegion(i, &AppStart, &AppEnd); ++i) {
      DCHECK(isAppMem(AppStart));
      DCHECK(!isAppMem(AppStart - 1));
      DCHECK(isAppMem(AppEnd - 1));
      DCHECK(!isAppMem(AppEnd));
      DCHECK(!isShadowMem(AppStart));
      DCHECK(!isShadowMem(AppEnd - 1));
      DCHECK(isShadowMem(appToShadow(AppStart)));
      DCHECK(isShadowMem(appToShadow(AppEnd - 1)));
      // Double-shadow checks.
      DCHECK(!isShadowMem(appToShadow(appToShadow(AppStart))));
      DCHECK(!isShadowMem(appToShadow(appToShadow(AppEnd - 1))));
    }
    // Ensure no shadow regions overlap each other.
    uptr ShadowAStart, ShadowBStart, ShadowAEnd, ShadowBEnd;
    for (int i = 0; getShadowRegion(i, &ShadowAStart, &ShadowAEnd); ++i) {
      for (int j = 0; getShadowRegion(j, &ShadowBStart, &ShadowBEnd); ++j) {
        DCHECK(i == j || ShadowAStart >= ShadowBEnd ||
               ShadowAEnd <= ShadowBStart);
      }
    }
  }
Exemplo n.º 2
0
static void computeStructRatio(StructHashMap::Handle &Handle) {
  Handle->Ratio = 0;
  Handle->Count = Handle->Struct->FieldCounters[0];
  for (u32 i = 1; i < Handle->Struct->NumFields; ++i) {
    Handle->Count += Handle->Struct->FieldCounters[i];
    Handle->Ratio += computeDifferenceRatio(
        Handle->Struct->FieldCounters[i - 1], Handle->Struct->FieldCounters[i]);
  }
  Ctx->TotalCount += Handle->Count;
  if (Handle->Ratio >= (u64)getFlags()->report_threshold ||
      (Verbosity() >= 1 && Handle->Count > 0))
    reportStructCounter(Handle);
}
Exemplo n.º 3
0
static void initializeFlags() {
  // Once we add our own flags we'll parse them here.
  // For now the common ones are sufficient.
  FlagParser Parser;
  SetCommonFlagsDefaults();
  RegisterCommonFlags(&Parser);
  Parser.ParseString(GetEnv(EsanOptsEnv));
  InitializeCommonFlags();
  if (Verbosity())
    ReportUnrecognizedFlags();
  if (common_flags()->help)
    Parser.PrintFlagDescriptions();
  __sanitizer_set_report_path(common_flags()->log_path);
}