| /* |
| * Copyright (C) 2015 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. |
| */ |
| |
| #include <dlfcn.h> |
| |
| static const char* g_local_string = "This string is local to root library"; |
| extern "C" const char* g_private_extern_string; |
| extern "C" const char* g_public_extern_string; |
| |
| bool g_dlopened = false; |
| |
| extern "C" const char* ns_get_local_string() { |
| return g_local_string; |
| } |
| |
| extern "C" const char* ns_get_private_extern_string() { |
| return g_private_extern_string; |
| } |
| |
| extern "C" const char* ns_get_public_extern_string() { |
| return g_public_extern_string; |
| } |
| |
| extern "C" const char* ns_get_dlopened_string() { |
| void* handle = dlopen("libnstest_dlopened.so", RTLD_NOW | RTLD_GLOBAL); |
| if (handle == nullptr) { |
| return nullptr; |
| } |
| |
| const char** result = static_cast<const char**>(dlsym(handle, "g_private_dlopened_string")); |
| if (result == nullptr) { |
| return nullptr; |
| } else { |
| g_dlopened = true; |
| } |
| |
| return *result; |
| } |