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 "dex/verification_results.h"
25 #include "driver/compiler_driver.h"
26 #include "driver/compiler_options.h"
27 #include "utils/atomic_dex_ref_map-inl.h"
28
29 namespace art {
30
CommonCompilerDriverTest()31 CommonCompilerDriverTest::CommonCompilerDriverTest() : inaccessible_page_(nullptr) {}
~CommonCompilerDriverTest()32 CommonCompilerDriverTest::~CommonCompilerDriverTest() {}
33
CompileAll(jobject class_loader,const std::vector<const DexFile * > & dex_files,TimingLogger * timings)34 void CommonCompilerDriverTest::CompileAll(jobject class_loader,
35 const std::vector<const DexFile*>& dex_files,
36 TimingLogger* timings) {
37 TimingLogger::ScopedTiming t(__FUNCTION__, timings);
38 SetDexFilesForOatFile(dex_files);
39
40 compiler_driver_->InitializeThreadPools();
41
42 compiler_driver_->PreCompile(class_loader,
43 dex_files,
44 timings,
45 &compiler_options_->image_classes_);
46
47 // Verification results in the `callback_` should not be used during compilation.
48 down_cast<QuickCompilerCallbacks*>(callbacks_.get())->SetVerificationResults(
49 reinterpret_cast<VerificationResults*>(inaccessible_page_));
50 compiler_driver_->CompileAll(class_loader, dex_files, timings);
51 down_cast<QuickCompilerCallbacks*>(callbacks_.get())->SetVerificationResults(
52 verification_results_.get());
53
54 compiler_driver_->FreeThreadPools();
55 }
56
SetDexFilesForOatFile(const std::vector<const DexFile * > & dex_files)57 void CommonCompilerDriverTest::SetDexFilesForOatFile(const std::vector<const DexFile*>& dex_files) {
58 compiler_options_->dex_files_for_oat_file_ = dex_files;
59 compiler_driver_->compiled_classes_.AddDexFiles(dex_files);
60 }
61
ReserveImageSpace()62 void CommonCompilerDriverTest::ReserveImageSpace() {
63 // Reserve where the image will be loaded up front so that other parts of test set up don't
64 // accidentally end up colliding with the fixed memory address when we need to load the image.
65 std::string error_msg;
66 MemMap::Init();
67 image_reservation_ = MemMap::MapAnonymous("image reservation",
68 reinterpret_cast<uint8_t*>(ART_BASE_ADDRESS),
69 static_cast<size_t>(120 * 1024 * 1024), // 120MB
70 PROT_NONE,
71 false /* no need for 4gb flag with fixed mmap */,
72 /*reuse=*/ false,
73 /*reservation=*/ nullptr,
74 &error_msg);
75 CHECK(image_reservation_.IsValid()) << error_msg;
76 }
77
UnreserveImageSpace()78 void CommonCompilerDriverTest::UnreserveImageSpace() {
79 image_reservation_.Reset();
80 }
81
CreateCompilerDriver()82 void CommonCompilerDriverTest::CreateCompilerDriver() {
83 ApplyInstructionSet();
84
85 compiler_options_->image_type_ = CompilerOptions::ImageType::kBootImage;
86 compiler_options_->compile_pic_ = false; // Non-PIC boot image is a test configuration.
87 compiler_options_->SetCompilerFilter(GetCompilerFilter());
88 compiler_options_->image_classes_.swap(*GetImageClasses());
89 compiler_options_->profile_compilation_info_ = GetProfileCompilationInfo();
90 compiler_driver_.reset(new CompilerDriver(compiler_options_.get(),
91 verification_results_.get(),
92 number_of_threads_,
93 /* swap_fd= */ -1));
94 }
95
SetUpRuntimeOptions(RuntimeOptions * options)96 void CommonCompilerDriverTest::SetUpRuntimeOptions(RuntimeOptions* options) {
97 CommonCompilerTest::SetUpRuntimeOptions(options);
98
99 verification_results_.reset(new VerificationResults());
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 const size_t page_size = MemMap::GetPageSize();
114 inaccessible_page_ = mmap(nullptr, page_size, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
115 CHECK(inaccessible_page_ != MAP_FAILED) << strerror(errno);
116 }
117
TearDown()118 void CommonCompilerDriverTest::TearDown() {
119 if (inaccessible_page_ != nullptr) {
120 munmap(inaccessible_page_, MemMap::GetPageSize());
121 inaccessible_page_ = nullptr;
122 }
123 image_reservation_.Reset();
124 compiler_driver_.reset();
125 verification_results_.reset();
126
127 CommonCompilerTest::TearDown();
128 }
129
130 // Get the set of image classes given to the compiler options in CreateCompilerDriver().
GetImageClasses()131 std::unique_ptr<HashSet<std::string>> CommonCompilerDriverTest::GetImageClasses() {
132 // Empty set: by default no classes are retained in the image.
133 return std::make_unique<HashSet<std::string>>();
134 }
135
136 // Get ProfileCompilationInfo that should be passed to the driver.
GetProfileCompilationInfo()137 ProfileCompilationInfo* CommonCompilerDriverTest::GetProfileCompilationInfo() {
138 // Null, profile information will not be taken into account.
139 return nullptr;
140 }
141
142 } // namespace art
143