Example #1
0
void PassImpl::run_pass(DexStoresVector& stores,
                        ConfigFiles& config,
                        PassManager& mgr) {
  if (m_config.create_runtime_asserts) {
    m_config.runtime_assert =
        RuntimeAssertTransform::Config(config.get_proguard_map());
  }

  auto scope = build_class_scope(stores);
  run(scope);
  mgr.incr_metric("branches_removed", m_transform_stats.branches_removed);
  mgr.incr_metric("materialized_consts", m_transform_stats.materialized_consts);
  mgr.incr_metric("constant_fields", m_stats.constant_fields);
  mgr.incr_metric("constant_methods", m_stats.constant_methods);
}
Example #2
0
void RenameClassesPass::run_pass(DexClassesVector& dexen, ConfigFiles& cfg) {
  auto scope = build_class_scope(dexen);
  std::unordered_set<const DexType*> untouchables;
  for (const auto& base : m_untouchable_hierarchies) {
    auto base_type = DexType::get_type(base.c_str());
    if (base_type != nullptr) {
      untouchables.insert(base_type);
      TypeVector children;
      get_all_children(base_type, children);
      untouchables.insert(children.begin(), children.end());
    }
  }
  rename_classes(
      scope, m_pre_filter_whitelist, m_post_filter_whitelist, m_path,
      untouchables, cfg.get_proguard_map(), m_rename_annotations);
  TRACE(RENAME, 1,
      "renamed classes: %d anon classes, %d from single char patterns, "
      "%d from multi char patterns\n",
      match_inner,
      match_short,
      match_long);
  TRACE(RENAME, 1, "String savings, at least %d bytes \n",
      base_strings_size - ren_strings_size);
}
Example #3
0
void PassManager::run_passes(DexStoresVector& stores, ConfigFiles& cfg) {
  DexStoreClassesIterator it(stores);
  Scope scope = build_class_scope(it);

  {
    Timer t("API Level Checker");
    api::LevelChecker::init(m_redex_options.min_sdk, scope);
  }

  char* seeds_output_file = std::getenv("REDEX_SEEDS_FILE");
  if (seeds_output_file) {
    std::string seed_filename = seeds_output_file;
    Timer t("Writing seeds file " + seed_filename);
    std::ofstream seeds_file(seed_filename);
    redex::print_seeds(seeds_file, cfg.get_proguard_map(), scope, false, false);
  }
  if (!cfg.get_printseeds().empty()) {
    Timer t("Writing seeds to file " + cfg.get_printseeds());
    std::ofstream seeds_file(cfg.get_printseeds());
    redex::print_seeds(seeds_file, cfg.get_proguard_map(), scope);
    std::ofstream config_file(cfg.get_printseeds() + ".pro");
    redex::show_configuration(config_file, scope, *m_pg_config);
    std::ofstream incoming(cfg.get_printseeds() + ".incoming");
    redex::print_classes(incoming, cfg.get_proguard_map(), scope);
    std::ofstream shrinking_file(cfg.get_printseeds() + ".allowshrinking");
    redex::print_seeds(shrinking_file, cfg.get_proguard_map(), scope, true,
                       false);
    std::ofstream obfuscation_file(cfg.get_printseeds() + ".allowobfuscation");
    redex::print_seeds(obfuscation_file, cfg.get_proguard_map(), scope, false,
                       true);
  }

  // Enable opt decision logging if specified in config.
  const Json::Value& opt_decisions_args =
      cfg.get_json_config()["opt_decisions"];
  if (opt_decisions_args.get("enable_logs", false).asBool()) {
    opt_metadata::OptDataMapper::get_instance().enable_logs();
  }

  // TODO(fengliu) : Remove Pass::eval_pass API
  for (size_t i = 0; i < m_activated_passes.size(); ++i) {
    Pass* pass = m_activated_passes[i];
    TRACE(PM, 1, "Evaluating %s...\n", pass->name().c_str());
    Timer t(pass->name() + " (eval)");
    m_current_pass_info = &m_pass_info[i];
    pass->eval_pass(stores, cfg, *this);
    m_current_pass_info = nullptr;
  }

  // Retrieve the type checker's settings.
  const Json::Value& type_checker_args =
      cfg.get_json_config()["ir_type_checker"];
  bool run_after_each_pass =
      type_checker_args.get("run_after_each_pass", false).asBool();
  // When verify_none is enabled, it's OK to have polymorphic constants.
  bool polymorphic_constants =
      type_checker_args.get("polymorphic_constants", false).asBool() ||
      get_redex_options().verify_none_enabled;
  bool verify_moves = type_checker_args.get("verify_moves", false).asBool();
  bool check_no_overwrite_this =
      type_checker_args.get("check_no_overwrite_this", false).asBool();
  std::unordered_set<std::string> trigger_passes;

  for (auto& trigger_pass : type_checker_args["run_after_passes"]) {
    trigger_passes.insert(trigger_pass.asString());
  }

  for (size_t i = 0; i < m_activated_passes.size(); ++i) {
    Pass* pass = m_activated_passes[i];
    TRACE(PM, 1, "Running %s...\n", pass->name().c_str());
    Timer t(pass->name() + " (run)");
    m_current_pass_info = &m_pass_info[i];

    {
      ScopedCommandProfiling cmd_prof(
          m_profiler_info && m_profiler_info->pass == pass
              ? boost::make_optional(m_profiler_info->command)
              : boost::none);
      jemalloc_util::ScopedProfiling malloc_prof(m_malloc_profile_pass == pass);
      pass->run_pass(stores, cfg, *this);
    }

    if (run_after_each_pass || trigger_passes.count(pass->name()) > 0) {
      scope = build_class_scope(it);
      // It's OK to overwrite the `this` register if we are not yet at the
      // output phase -- the register allocator can fix it up later.
      run_type_checker(scope, polymorphic_constants, verify_moves,
                       /* check_no_overwrite_this */ false);
    }
    m_current_pass_info = nullptr;
  }

  // Always run the type checker before generating the optimized dex code.
  scope = build_class_scope(it);
  run_type_checker(scope, polymorphic_constants, verify_moves,
                   check_no_overwrite_this);

  if (!cfg.get_printseeds().empty()) {
    Timer t("Writing outgoing classes to file " + cfg.get_printseeds() +
            ".outgoing");
    // Recompute the scope.
    scope = build_class_scope(it);
    std::ofstream outgoing(cfg.get_printseeds() + ".outgoing");
    redex::print_classes(outgoing, cfg.get_proguard_map(), scope);
  }
}