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      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 #include <dlfcn.h>
     17 #include <stdio.h>
     18 
     19 extern int test_dlsym_symbol;
     20 
     21 int test_dlsym_symbol = -1;
     22 
     23 extern "C" int* lookup_dlsym_symbol_using_RTLD_DEFAULT() {
     24   dlerror();
     25   int* result = static_cast<int*>(dlsym(RTLD_DEFAULT, "test_dlsym_symbol"));
     26   // TODO: remove this once b/20049306 is fixed
     27   if (result == nullptr) {
     28     printf("Cannot find the answer\n");
     29   }
     30   return result;
     31 }
     32 
     33 extern "C" int* lookup_dlsym_symbol2_using_RTLD_DEFAULT() {
     34   dlerror();
     35   int* result = static_cast<int*>(dlsym(RTLD_DEFAULT, "test_dlsym_symbol2"));
     36   // TODO: remove this once b/20049306 is fixed
     37   if (result == nullptr) {
     38     printf("Cannot find the answer\n");
     39   }
     40   return result;
     41 }
     42 
     43 extern "C" int* lookup_dlsym_symbol_using_RTLD_NEXT() {
     44   dlerror();
     45   int* result = static_cast<int*>(dlsym(RTLD_NEXT, "test_dlsym_symbol"));
     46   // TODO: remove this once b/20049306 is fixed
     47   if (result == nullptr) {
     48     printf("Cannot find the answer\n");
     49   }
     50   return result;
     51 }
     52 
     53