1 /*
2 * Copyright (C) 2023 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 "gtest/gtest.h"
18
19 #include "berberis/base/bit_util.h"
20 #include "berberis/guest_abi/function_wrappers.h"
21 #include "berberis/guest_state/guest_state.h"
22
23 namespace berberis {
24
25 namespace {
26
TEST(TrampolineFuncGenerator,IntRes)27 TEST(TrampolineFuncGenerator, IntRes) {
28 struct Callee {
29 static int foo() { return 1; }
30 };
31
32 TrampolineFunc func = GetTrampolineFunc<int(void)>();
33
34 ThreadState state{};
35
36 func(reinterpret_cast<void*>(Callee::foo), &state);
37
38 EXPECT_EQ(GetXReg<A0>(state.cpu), 1U);
39 }
40
TEST(TrampolineFuncGenerator,FloatArgs_lp64)41 TEST(TrampolineFuncGenerator, FloatArgs_lp64) {
42 struct Callee {
43 static void foo(void* p, float x, float y) {
44 EXPECT_EQ(p, nullptr);
45 EXPECT_EQ(x, 0.5f);
46 EXPECT_EQ(y, 0.75f);
47 }
48 };
49
50 TrampolineFunc func = GetTrampolineFunc<void(void*, float, float), GuestAbi::kLp64>();
51
52 ThreadState state{};
53
54 SetXReg<A0>(state.cpu, 0U);
55 SetXReg<A1>(state.cpu, bit_cast<uint32_t>(0.5f));
56 SetXReg<A2>(state.cpu, bit_cast<uint32_t>(0.75f));
57
58 EXPECT_NO_FATAL_FAILURE(func(reinterpret_cast<void*>(Callee::foo), &state));
59 }
60
TEST(TrampolineFuncGenerator,FloatArgs_lp64d)61 TEST(TrampolineFuncGenerator, FloatArgs_lp64d) {
62 struct Callee {
63 static void foo(void* p, float x, float y) {
64 EXPECT_EQ(p, nullptr);
65 EXPECT_EQ(x, 0.5f);
66 EXPECT_EQ(y, 0.75f);
67 }
68 };
69
70 TrampolineFunc func = GetTrampolineFunc<void(void*, float, float), GuestAbi::kLp64d>();
71
72 ThreadState state{};
73
74 SetXReg<A0>(state.cpu, 0U);
75 SetFReg<FA0>(state.cpu, bit_cast<uint32_t>(0.5f));
76 SetFReg<FA1>(state.cpu, bit_cast<uint32_t>(0.75f));
77
78 EXPECT_NO_FATAL_FAILURE(func(reinterpret_cast<void*>(Callee::foo), &state));
79 }
80
81 } // namespace
82
83 } // namespace berberis
84