1 /*
2 * Copyright (C) 2019 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 <sys/mman.h>
18
19 #include "common_compiler_driver_test.h"
20
21 #include "base/casts.h"
22 #include "base/timing_logger.h"
23 #include "dex/quick_compiler_callbacks.h"
24 #include "driver/compiler_driver.h"
25 #include "driver/compiler_options.h"
26 #include "utils/atomic_dex_ref_map-inl.h"
27
28 namespace art {
29
CommonCompilerDriverTest()30 CommonCompilerDriverTest::CommonCompilerDriverTest() : inaccessible_page_(nullptr) {}
~CommonCompilerDriverTest()31 CommonCompilerDriverTest::~CommonCompilerDriverTest() {}
32
CompileAll(jobject class_loader,const std::vector<const DexFile * > & dex_files,TimingLogger * timings)33 void CommonCompilerDriverTest::CompileAll(jobject class_loader,
34 const std::vector<const DexFile*>& dex_files,
35 TimingLogger* timings) {
36 TimingLogger::ScopedTiming t(__FUNCTION__, timings);
37 SetDexFilesForOatFile(dex_files);
38
39 compiler_driver_->InitializeThreadPools();
40
41 compiler_driver_->PreCompile(class_loader,
42 dex_files,
43 timings,
44 &compiler_options_->image_classes_);
45
46 // Verification results in the `callback_` should not be used during compilation.
47 down_cast<QuickCompilerCallbacks*>(callbacks_.get())->SetVerificationResults(
48 reinterpret_cast<VerificationResults*>(inaccessible_page_));
49 compiler_options_->verification_results_ = verification_results_.get();
50 compiler_driver_->CompileAll(class_loader, dex_files, timings);
51 compiler_options_->verification_results_ = nullptr;
52 down_cast<QuickCompilerCallbacks*>(callbacks_.get())->SetVerificationResults(
53 verification_results_.get());
54
55 compiler_driver_->FreeThreadPools();
56 }
57
SetDexFilesForOatFile(const std::vector<const DexFile * > & dex_files)58 void CommonCompilerDriverTest::SetDexFilesForOatFile(const std::vector<const DexFile*>& dex_files) {
59 compiler_options_->dex_files_for_oat_file_ = dex_files;
60 compiler_driver_->compiled_classes_.AddDexFiles(dex_files);
61 }
62
ReserveImageSpace()63 void CommonCompilerDriverTest::ReserveImageSpace() {
64 // Reserve where the image will be loaded up front so that other parts of test set up don't
65 // accidentally end up colliding with the fixed memory address when we need to load the image.
66 std::string error_msg;
67 MemMap::Init();
68 image_reservation_ = MemMap::MapAnonymous("image reservation",
69 reinterpret_cast<uint8_t*>(ART_BASE_ADDRESS),
70 static_cast<size_t>(120 * 1024 * 1024), // 120MB
71 PROT_NONE,
72 false /* no need for 4gb flag with fixed mmap */,
73 /*reuse=*/ false,
74 /*reservation=*/ nullptr,
75 &error_msg);
76 CHECK(image_reservation_.IsValid()) << error_msg;
77 }
78
UnreserveImageSpace()79 void CommonCompilerDriverTest::UnreserveImageSpace() {
80 image_reservation_.Reset();
81 }
82
CreateCompilerDriver()83 void CommonCompilerDriverTest::CreateCompilerDriver() {
84 ApplyInstructionSet();
85
86 compiler_options_->image_type_ = CompilerOptions::ImageType::kBootImage;
87 compiler_options_->compile_pic_ = false; // Non-PIC boot image is a test configuration.
88 compiler_options_->SetCompilerFilter(GetCompilerFilter());
89 compiler_options_->image_classes_.swap(*GetImageClasses());
90 compiler_options_->profile_compilation_info_ = GetProfileCompilationInfo();
91 compiler_driver_.reset(new CompilerDriver(compiler_options_.get(),
92 compiler_kind_,
93 number_of_threads_,
94 /* swap_fd= */ -1));
95 }
96
SetUpRuntimeOptions(RuntimeOptions * options)97 void CommonCompilerDriverTest::SetUpRuntimeOptions(RuntimeOptions* options) {
98 CommonCompilerTest::SetUpRuntimeOptions(options);
99
100 QuickCompilerCallbacks* callbacks =
101 new QuickCompilerCallbacks(CompilerCallbacks::CallbackMode::kCompileApp);
102 callbacks->SetVerificationResults(verification_results_.get());
103 callbacks_.reset(callbacks);
104 }
105
SetUp()106 void CommonCompilerDriverTest::SetUp() {
107 CommonCompilerTest::SetUp();
108
109 CreateCompilerDriver();
110
111 // Note: We cannot use MemMap because some tests tear down the Runtime and destroy
112 // the gMaps, so when destroying the MemMap, the test would crash.
113 inaccessible_page_ = mmap(nullptr, kPageSize, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
114 CHECK(inaccessible_page_ != MAP_FAILED) << strerror(errno);
115 }
116
TearDown()117 void CommonCompilerDriverTest::TearDown() {
118 if (inaccessible_page_ != nullptr) {
119 munmap(inaccessible_page_, kPageSize);
120 inaccessible_page_ = nullptr;
121 }
122 image_reservation_.Reset();
123 compiler_driver_.reset();
124
125 CommonCompilerTest::TearDown();
126 }
127
128 // Get the set of image classes given to the compiler options in CreateCompilerDriver().
GetImageClasses()129 std::unique_ptr<HashSet<std::string>> CommonCompilerDriverTest::GetImageClasses() {
130 // Empty set: by default no classes are retained in the image.
131 return std::make_unique<HashSet<std::string>>();
132 }
133
134 // Get ProfileCompilationInfo that should be passed to the driver.
GetProfileCompilationInfo()135 ProfileCompilationInfo* CommonCompilerDriverTest::GetProfileCompilationInfo() {
136 // Null, profile information will not be taken into account.
137 return nullptr;
138 }
139
140 } // namespace art
141