1/*
2 * Copyright (C) 2015 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
17#include "linker_dlwarning.h"
18
19#include <strings.h>
20
21#include <string>
22
23static std::string current_msg;
24
25void add_dlwarning(const char* sopath, const char* message, const char* value) {
26  if (!current_msg.empty()) {
27    current_msg += '\n';
28  }
29
30  current_msg = current_msg + basename(sopath) + ": " + message;
31
32  if (value != nullptr) {
33    current_msg = current_msg + " \"" + value + "\"";
34  }
35}
36
37// Resets the current one (like dlerror but instead of
38// being thread-local it is process-local).
39void get_dlwarning(void* obj, void (*f)(void*, const char*)) {
40  if (current_msg.empty()) {
41    f(obj, nullptr);
42  } else {
43    std::string msg = current_msg;
44    current_msg.clear();
45    f(obj, msg.c_str());
46  }
47}
48