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
android_load_sphal_library(const char * name,int flag)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
android_unload_sphal_library(void * handle)46 int android_unload_sphal_library(void* handle) { return dlclose(handle); }
47