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 <gtest/gtest.h> 17 18 #include <android-base/strings.h> 19 #include <dirent.h> 20 #include <dlfcn.h> 21 #include <vndksupport/linker.h> 22 #include <string> 23 24 // Since the test executable will be in /data and ld.config.txt does not 25 // configure sphal namespace for executables in /data, the call to 26 // android_load_sphal_library will always fallback to the plain dlopen from the 27 // default namespace. 28 29 // Let's use libEGL_<chipset>.so as a SP-HAL in test 30 static std::string find_sphal_lib() { 31 const char* path = 32 #if defined(__LP64__) 33 "/vendor/lib64/egl"; 34 #else 35 "/vendor/lib/egl"; 36 #endif 37 std::unique_ptr<DIR, decltype(&closedir)> dir(opendir(path), closedir); 38 39 dirent* dp; 40 while ((dp = readdir(dir.get())) != nullptr) { 41 std::string name = dp->d_name; 42 if (android::base::StartsWith(name, "libEGL_")) { 43 return std::string(path) + "/" + name; 44 } 45 } 46 return ""; 47 } 48 49 TEST(linker, load_existing_lib) { 50 std::string name = find_sphal_lib(); 51 ASSERT_NE("", name); 52 void* handle = android_load_sphal_library(name.c_str(), RTLD_NOW | RTLD_LOCAL); 53 ASSERT_NE(nullptr, handle); 54 android_unload_sphal_library(handle); 55 } 56 57 TEST(linker, load_nonexisting_lib) { 58 void* handle = android_load_sphal_library("libNeverUseThisName.so", RTLD_NOW | RTLD_LOCAL); 59 ASSERT_EQ(nullptr, handle); 60 } 61
