1 /*
2  * Copyright (C) 2014 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 
17 // This one should be preempted by the function
18 // defined in the main executable.
main_global_default_serial()19 extern "C" int __attribute__((weak)) main_global_default_serial() {
20   return 2716057;
21 }
22 
23 // Even though this one is defined by the main
24 // executable it should not be preempted
25 // because of protected visibility
main_global_protected_serial()26 extern "C" int __attribute__((weak, visibility("protected"))) main_global_protected_serial() {
27   return 3370318;
28 }
29 
main_global_default_get_serial()30 extern "C" int main_global_default_get_serial() {
31   return main_global_default_serial();
32 }
33 
main_global_protected_get_serial()34 extern "C" int main_global_protected_get_serial() {
35   return main_global_protected_serial();
36 }
37 
38 // Trying to preempt functions from a DT_NEEDED .so
lib_global_default_serial()39 extern "C" int lib_global_default_serial() {
40   return 3370318;
41 }
42 
lib_global_protected_serial()43 extern "C" int lib_global_protected_serial() {
44   return 2716057;
45 }
46