| /* |
| * 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/namespace.h" |
| #include "linkerconfig/sectionbuilder.h" |
| |
| #include <functional> |
| #include <vector> |
| |
| #include "linkerconfig/common.h" |
| #include "linkerconfig/environment.h" |
| #include "linkerconfig/log.h" |
| #include "linkerconfig/namespacebuilder.h" |
| #include "linkerconfig/section.h" |
| |
| using android::linkerconfig::contents::SectionType; |
| using android::linkerconfig::modules::ApexInfo; |
| using android::linkerconfig::modules::LibProvider; |
| using android::linkerconfig::modules::LibProviders; |
| using android::linkerconfig::modules::Namespace; |
| using android::linkerconfig::modules::Section; |
| using android::linkerconfig::modules::SharedLibs; |
| |
| namespace android { |
| namespace linkerconfig { |
| namespace contents { |
| |
| // Builds default section for the apex |
| // For com.android.foo, |
| // dir.com.android.foo = /apex/com.android.foo/bin |
| // [com.android.foo] |
| // additional.namespaces = system |
| // namespace.default.... |
| // namespace.system... |
| Section BuildApexDefaultSection(Context& ctx, const ApexInfo& apex_info) { |
| ctx.SetCurrentSection(SectionType::Other); |
| |
| bool target_apex_visible = apex_info.visible; |
| std::set<std::string> visible_apexes; |
| if (apex_info.name == "com.android.art") { |
| // ld.config.txt for the ART module needs to have the namespaces with public |
| // and JNI libs visible since it runs dalvikvm and hence libnativeloader, |
| // which builds classloader namespaces that may link to those libs. |
| for (const auto& apex : ctx.GetApexModules()) { |
| if (apex.jni_libs.size() > 0 || apex.public_libs.size() > 0) { |
| visible_apexes.insert(apex.name); |
| if (apex.name == apex_info.name) { |
| target_apex_visible = true; |
| } |
| } |
| } |
| } |
| |
| std::vector<Namespace> namespaces; |
| |
| // If target APEX should be visible, then there will be two namespaces - |
| // default and APEX namespace - with same set of libraries. To avoid any |
| // confusion based on two same namespaces, and also to avoid loading same |
| // library twice based on the namespace, use empty default namespace which |
| // does not contain any search path and fully links to visible APEX namespace. |
| if (target_apex_visible) { |
| namespaces.emplace_back(BuildApexEmptyDefaultNamespace(ctx, apex_info)); |
| } else { |
| namespaces.emplace_back(BuildApexDefaultNamespace(ctx, apex_info)); |
| } |
| namespaces.emplace_back(BuildApexPlatformNamespace(ctx)); |
| |
| // Vendor APEXes can use libs provided by "vendor" |
| // and Product APEXes can use libs provided by "product" |
| if (android::linkerconfig::modules::IsTreblelizedDevice()) { |
| if (apex_info.InVendor()) { |
| namespaces.emplace_back(BuildRsNamespace(ctx)); |
| auto vendor = BuildVendorNamespace(ctx, "vendor"); |
| if (!vendor.GetProvides().empty()) { |
| namespaces.emplace_back(std::move(vendor)); |
| } |
| if (android::linkerconfig::modules::IsVendorVndkVersionDefined()) { |
| namespaces.emplace_back( |
| BuildVndkNamespace(ctx, VndkUserPartition::Vendor)); |
| if (android::linkerconfig::modules::IsVndkInSystemNamespace()) { |
| namespaces.emplace_back(BuildVndkInSystemNamespace(ctx)); |
| } |
| } |
| } else if (apex_info.InProduct()) { |
| auto product = BuildProductNamespace(ctx, "product"); |
| if (!product.GetProvides().empty()) { |
| namespaces.emplace_back(std::move(product)); |
| } |
| if (android::linkerconfig::modules::IsProductVndkVersionDefined()) { |
| namespaces.emplace_back( |
| BuildVndkNamespace(ctx, VndkUserPartition::Product)); |
| if (android::linkerconfig::modules::IsVndkInSystemNamespace()) { |
| namespaces.emplace_back(BuildVndkInSystemNamespace(ctx)); |
| } |
| } |
| } |
| } |
| |
| LibProviders libs_providers; |
| if (apex_info.InVendor()) { |
| // In Vendor APEX, sphal namespace is not required and possible to cause |
| // same library being loaded from two namespaces (sphal and vendor). As |
| // SPHAL itself is not required from vendor (APEX) section, add vendor |
| // namespace instead. |
| libs_providers[":sphal"] = {LibProvider{ |
| "vendor", |
| std::bind(BuildVendorNamespace, ctx, "vendor"), |
| SharedLibs{{}}, |
| }}; |
| } else { |
| libs_providers[":sphal"] = {LibProvider{ |
| "sphal", |
| std::bind(BuildSphalNamespace, ctx), |
| SharedLibs{{}}, |
| }}; |
| } |
| |
| bool in_vendor_with_vndk_enabled = |
| !apex_info.InProduct() && |
| android::linkerconfig::modules::IsVendorVndkVersionDefined(); |
| bool in_product_with_vndk_enabled = |
| apex_info.InProduct() && |
| android::linkerconfig::modules::IsProductVndkVersionDefined(); |
| |
| if (in_vendor_with_vndk_enabled || in_product_with_vndk_enabled) { |
| VndkUserPartition user_partition = VndkUserPartition::Vendor; |
| std::string user_partition_suffix = "VENDOR"; |
| if (apex_info.InProduct()) { |
| user_partition = VndkUserPartition::Product; |
| user_partition_suffix = "PRODUCT"; |
| } |
| libs_providers[":sanitizer"] = {LibProvider{ |
| ctx.GetSystemNamespaceName(), |
| std::bind(BuildApexPlatformNamespace, |
| ctx), // "system" should be available |
| SharedLibs{{Var("SANITIZER_DEFAULT_" + user_partition_suffix)}}, |
| }}; |
| libs_providers[":vndk"] = GetVndkProvider(ctx, user_partition); |
| libs_providers[":vndksp"] = {LibProvider{ |
| "vndk", |
| std::bind(BuildVndkNamespace, ctx, user_partition), |
| SharedLibs{{Var("VNDK_SAMEPROCESS_LIBRARIES_" + user_partition_suffix)}}, |
| }}; |
| } else if (apex_info.InProduct() || apex_info.InVendor()) { |
| // vendor or product partitions don't need this because they link LLNDK |
| // libs. however, vendor/product apexes still need to link LLNDK sanitizer |
| // libs even though these are not listed in "required". |
| libs_providers[":sanitizer"] = {LibProvider{ |
| ctx.GetSystemNamespaceName(), |
| std::bind(BuildApexPlatformNamespace, |
| ctx), // "system" should be available |
| SharedLibs{{Var("SANITIZER_LIBRARIES_LLNDK")}}, |
| }}; |
| } |
| |
| if (apex_info.InVendor()) { |
| AddVendorSubdirNamespaceProviders(ctx, libs_providers); |
| } |
| |
| return BuildSection( |
| ctx, apex_info.name, std::move(namespaces), visible_apexes, libs_providers); |
| } |
| |
| } // namespace contents |
| } // namespace linkerconfig |
| } // namespace android |