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
23 static std::string current_msg;
24
add_dlwarning(const char * sopath,const char * message,const char * value)25 void 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).
get_dlwarning(void * obj,void (* f)(void *,const char *))39 void 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