jni_cfi_test.cc revision 367f3dd32454858b8b25d87feb8f6599d3b4c9dd 
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#include <memory>
18#include <vector>
19
20#include "arch/instruction_set.h"
21#include "base/arena_allocator.h"
22#include "base/enums.h"
23#include "cfi_test.h"
24#include "gtest/gtest.h"
25#include "jni/quick/calling_convention.h"
26#include "utils/assembler.h"
27#include "utils/jni_macro_assembler.h"
28
29#include "jni/jni_cfi_test_expected.inc"
30
31namespace art {
32
33// Run the tests only on host.
34#ifndef ART_TARGET_ANDROID
35
36class JNICFITest : public CFITest {
37 public:
38  // Enable this flag to generate the expected outputs.
39  static constexpr bool kGenerateExpected = false;
40
41  void TestImpl(InstructionSet isa,
42                const char* isa_str,
43                const std::vector<uint8_t>& expected_asm,
44                const std::vector<uint8_t>& expected_cfi) {
45    if (Is64BitInstructionSet(isa)) {
46      TestImplSized<PointerSize::k64>(isa, isa_str, expected_asm, expected_cfi);
47    } else {
48      TestImplSized<PointerSize::k32>(isa, isa_str, expected_asm, expected_cfi);
49    }
50  }
51
52 private:
53  template <PointerSize kPointerSize>
54  void TestImplSized(InstructionSet isa,
55                     const char* isa_str,
56                     const std::vector<uint8_t>& expected_asm,
57                     const std::vector<uint8_t>& expected_cfi) {
58    // Description of simple method.
59    const bool is_static = true;
60    const bool is_synchronized = false;
61    const char* shorty = "IIFII";
62
63    ArenaPool pool;
64    ArenaAllocator arena(&pool);
65
66    std::unique_ptr<JniCallingConvention> jni_conv(
67        JniCallingConvention::Create(&arena,
68                                     is_static,
69                                     is_synchronized,
70                                     /*is_critical_native*/false,
71                                     shorty,
72                                     isa));
73    std::unique_ptr<ManagedRuntimeCallingConvention> mr_conv(
74        ManagedRuntimeCallingConvention::Create(&arena, is_static, is_synchronized, shorty, isa));
75    const int frame_size(jni_conv->FrameSize());
76    ArrayRef<const ManagedRegister> callee_save_regs = jni_conv->CalleeSaveRegisters();
77
78    // Assemble the method.
79    std::unique_ptr<JNIMacroAssembler<kPointerSize>> jni_asm(
80        JNIMacroAssembler<kPointerSize>::Create(&arena, isa));
81    jni_asm->cfi().SetEnabled(true);
82    jni_asm->BuildFrame(frame_size, mr_conv->MethodRegister(),
83                        callee_save_regs, mr_conv->EntrySpills());
84    jni_asm->IncreaseFrameSize(32);
85    jni_asm->DecreaseFrameSize(32);
86    jni_asm->RemoveFrame(frame_size, callee_save_regs);
87    jni_asm->FinalizeCode();
88    std::vector<uint8_t> actual_asm(jni_asm->CodeSize());
89    MemoryRegion code(&actual_asm[0], actual_asm.size());
90    jni_asm->FinalizeInstructions(code);
91    ASSERT_EQ(jni_asm->cfi().GetCurrentCFAOffset(), frame_size);
92    const std::vector<uint8_t>& actual_cfi = *(jni_asm->cfi().data());
93
94    if (kGenerateExpected) {
95      GenerateExpected(stdout, isa, isa_str, actual_asm, actual_cfi);
96    } else {
97      EXPECT_EQ(expected_asm, actual_asm);
98      EXPECT_EQ(expected_cfi, actual_cfi);
99    }
100  }
101};
102
103#define TEST_ISA(isa) \
104  TEST_F(JNICFITest, isa) { \
105    std::vector<uint8_t> expected_asm(expected_asm_##isa, \
106        expected_asm_##isa + arraysize(expected_asm_##isa)); \
107    std::vector<uint8_t> expected_cfi(expected_cfi_##isa, \
108        expected_cfi_##isa + arraysize(expected_cfi_##isa)); \
109    TestImpl(isa, #isa, expected_asm, expected_cfi); \
110  }
111
112#ifdef ART_ENABLE_CODEGEN_arm
113TEST_ISA(kThumb2)
114#endif
115#ifdef ART_ENABLE_CODEGEN_arm64
116TEST_ISA(kArm64)
117#endif
118#ifdef ART_ENABLE_CODEGEN_x86
119TEST_ISA(kX86)
120#endif
121#ifdef ART_ENABLE_CODEGEN_x86_64
122TEST_ISA(kX86_64)
123#endif
124#ifdef ART_ENABLE_CODEGEN_mips
125TEST_ISA(kMips)
126#endif
127#ifdef ART_ENABLE_CODEGEN_mips64
128TEST_ISA(kMips64)
129#endif
130
131#endif  // ART_TARGET_ANDROID
132
133}  // namespace art
134