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 #include "berberis/guest_abi/guest_call.h"
18 
19 #include <cstdint>
20 
21 #include "berberis/base/checks.h"
22 #include "berberis/guest_abi/guest_arguments.h"
23 #include "berberis/guest_state/guest_addr.h"
24 #include "berberis/runtime_primitives/runtime_library.h"
25 
26 namespace berberis {
27 
AddArgInt32(uint32_t arg)28 void GuestCall::AddArgInt32(uint32_t arg) {
29   CHECK_LT(buffer().argc, kMaxArgc);
30   buffer().argv[buffer().argc++] = arg;
31 }
32 
RunVoid(GuestAddr func_addr)33 void GuestCall::RunVoid(GuestAddr func_addr) {
34   buffer().resc = 0;
35   RunGuestCall(func_addr, &buffer());
36 }
37 
RunResInt32(GuestAddr func_addr)38 uint32_t GuestCall::RunResInt32(GuestAddr func_addr) {
39   buffer().resc = 1;
40   RunGuestCall(func_addr, &buffer());
41   return buffer().argv[0];
42 }
43 
44 }  // namespace berberis
45