contents/configuration/baseconfig.cc

/*
 * Copyright (C) 2019 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "linkerconfig/baseconfig.h"
#include "linkerconfig/environment.h"
#include "linkerconfig/sectionbuilder.h"

using android::linkerconfig::modules::DirToSection;
using android::linkerconfig::modules::Section;

namespace {

// Don't change the order here. The first pattern that matches with the
// absolute path of an executable is selected.
const std::vector<DirToSection> kDirToSection = {
    {"/system/bin/", "system"},
    {"/system/xbin/", "system"},
    {"/@{SYSTEM_EXT:system_ext}/bin/", "system"},
    {"/@{PRODUCT:product}/bin/", "system"},

    {"/odm/bin/", "vendor"},
    {"/vendor/bin/", "vendor"},
    {"/data/nativetest/odm", "vendor"},
    {"/data/nativetest64/odm", "vendor"},
    {"/data/benchmarktest/odm", "vendor"},
    {"/data/benchmarktest64/odm", "vendor"},
    {"/data/nativetest/vendor", "vendor"},
    {"/data/nativetest64/vendor", "vendor"},
    {"/data/benchmarktest/vendor", "vendor"},
    {"/data/benchmarktest64/vendor", "vendor"},

    {"/data/nativetest/unrestricted", "unrestricted"},
    {"/data/nativetest64/unrestricted", "unrestricted"},

    // TODO(b/123864775): Ensure tests are run from /data/nativetest{,64} or (if
    // necessary) the unrestricted subdirs above. Then clean this up.
    {"/data/local/tmp", "unrestricted"},

    {"/postinstall", "postinstall"},
    // Fallback entry to provide APEX namespace lookups for binaries anywhere
    // else. This must be last.
    {"/data", "system"},
};

}  // namespace

namespace android {
namespace linkerconfig {
namespace contents {
android::linkerconfig::modules::Configuration CreateBaseConfiguration() {
  std::vector<Section> sections;

  Context current_context;
  if (android::linkerconfig::modules::IsVndkLiteDevice()) {
    current_context.SetCurrentLinkerConfigType(LinkerConfigType::Vndklite);
  }

  sections.emplace_back(BuildSystemSection(current_context));
  sections.emplace_back(BuildVendorSection(current_context));
  sections.emplace_back(BuildUnrestrictedSection(current_context));
  sections.emplace_back(BuildPostInstallSection(current_context));

  return android::linkerconfig::modules::Configuration(std::move(sections),
                                                       kDirToSection);
}
}  // namespace contents
}  // namespace linkerconfig
}  // namespace android