1 /*
2  * Copyright 2022 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 #pragma once
18 
19 #ifdef __cplusplus
20 extern "C" {
21 typedef int AVmPayload_main_t();
22 AVmPayload_main_t AVmPayload_main;
23 }
24 #else
25 typedef int AVmPayload_main_t(void);
26 
27 /**
28  * Entry point for the VM payload. This function must be implemented by the
29  * payload binary, and is called by Microdroid to start the payload inside the
30  * VM.
31  *
32  * When the function returns the VM will be shut down.  If the host app has set
33  * a `VirtualMachineCallback` for the VM, its `onPayloadFinished` method will be
34  * called with the VM's exit code.
35  *
36  * \return the exit code of the VM.
37  */
38 extern int AVmPayload_main(void);
39 #endif
40