| /* |
| * 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. |
| */ |
| #pragma once |
| #if defined(__ANDROID__) |
| |
| #include <dlfcn.h> |
| |
| #include "android-base/logging.h" |
| #include "android/dlext.h" |
| #include "log/log.h" |
| #include "nativebridge/native_bridge.h" |
| |
| namespace android { |
| |
| // NativeLoaderNamespace abstracts a linker namespace for the native |
| // architecture (ex: arm on arm) or the translated architecture (ex: arm on |
| // x86). Instances of this class are managed by LibraryNamespaces object. |
| struct NativeLoaderNamespace { |
| public: |
| NativeLoaderNamespace() : android_ns_(nullptr), native_bridge_ns_(nullptr) {} |
| |
| explicit NativeLoaderNamespace(android_namespace_t* ns) |
| : android_ns_(ns), native_bridge_ns_(nullptr) {} |
| |
| explicit NativeLoaderNamespace(native_bridge_namespace_t* ns) |
| : android_ns_(nullptr), native_bridge_ns_(ns) {} |
| |
| NativeLoaderNamespace(NativeLoaderNamespace&&) = default; |
| NativeLoaderNamespace(const NativeLoaderNamespace&) = default; |
| NativeLoaderNamespace& operator=(const NativeLoaderNamespace&) = default; |
| |
| android_namespace_t* get_android_ns() const { |
| CHECK(native_bridge_ns_ == nullptr); |
| return android_ns_; |
| } |
| |
| native_bridge_namespace_t* get_native_bridge_ns() const { |
| CHECK(android_ns_ == nullptr); |
| return native_bridge_ns_; |
| } |
| |
| bool is_android_namespace() const { return native_bridge_ns_ == nullptr; } |
| |
| private: |
| // Only one of them can be not null |
| android_namespace_t* android_ns_; |
| native_bridge_namespace_t* native_bridge_ns_; |
| }; |
| |
| } // namespace android |
| #endif // #if defined(__ANDROID__) |