1 /*
2 * Copyright (C) 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 #pragma once
17
18 #include <string>
19 #include <utility>
20 #include <vector>
21
22 #include "linkerconfig/configwriter.h"
23 #include "linkerconfig/log.h"
24
25 #define LOG_TAG "linkerconfig"
26
27 namespace android {
28 namespace linkerconfig {
29 namespace modules {
30 class Link {
31 public:
32 Link(const std::string& origin_namespace, const std::string& target_namespace,
33 bool allow_all_shared_libs = false)
origin_namespace_(origin_namespace)34 : origin_namespace_(origin_namespace),
35 target_namespace_(target_namespace),
36 allow_all_shared_libs_(allow_all_shared_libs) {
37 }
38 template <typename T, typename... Args>
39 void AddSharedLib(T&& lib_name, Args&&... lib_names);
40 void WriteConfig(ConfigWriter& writer);
41
42 private:
43 const std::string origin_namespace_;
44 const std::string target_namespace_;
45 const bool allow_all_shared_libs_;
46 std::vector<std::string> shared_libs_;
47 };
48
49 template <typename T, typename... Args>
AddSharedLib(T && lib_name,Args &&...lib_names)50 void Link::AddSharedLib(T&& lib_name, Args&&... lib_names) {
51 if (allow_all_shared_libs_) {
52 LOG(WARNING) << "Tried to add shared libraries to link from "
53 << origin_namespace_ << " to " << target_namespace_
54 << "while this link is allow_all_shared_libs";
55 return;
56 }
57 shared_libs_.push_back(std::forward<T>(lib_name));
58 if constexpr (sizeof...(Args) > 0) {
59 AddSharedLib(std::forward<Args>(lib_names)...);
60 }
61 }
62 } // namespace modules
63 } // namespace linkerconfig
64 } // namespace android