1 /*
2  * Copyright (C) 2015 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 extern "C" {
18   int versioned_function();
19 
20   int get_function_version();
21   int version_zero_function();
22   int version_zero_function2() __attribute__((weak));
23 }
24 
get_function_version()25 int get_function_version() {
26   return version_zero_function2() + version_zero_function() + versioned_function();
27 }
28 
29 // we expect this function to be preempted by main executable.
version_zero_function2()30 int version_zero_function2() {
31   return 40000;
32 }
33