1 /* 2 * Copyright (C) 2017 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 "linker.h" 17 18 #include <android/dlext.h> 19 #include <dlfcn.h> 20 21 #define LOG_TAG "vndksupport" 22 #include <log/log.h> 23 24 extern struct android_namespace_t* android_get_exported_namespace(const char*); 25 26 void* android_load_sphal_library(const char* name, int flag) { 27 struct android_namespace_t* sphal_namespace = android_get_exported_namespace("sphal"); 28 if (sphal_namespace != NULL) { 29 const android_dlextinfo dlextinfo = { 30 .flags = ANDROID_DLEXT_USE_NAMESPACE, .library_namespace = sphal_namespace, 31 }; 32 void* handle = android_dlopen_ext(name, flag, &dlextinfo); 33 if (!handle) { 34 ALOGE("Could not load %s from sphal namespace: %s.", name, dlerror()); 35 } 36 return handle; 37 } else { 38 ALOGI( 39 "sphal namespace is not configured for this process. " 40 "Loading %s from the current namespace instead.", 41 name); 42 return dlopen(name, flag); 43 } 44 } 45 46 int android_unload_sphal_library(void* handle) { return dlclose(handle); } 47
