1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "image.h"
#include <string>
#include <vector>
#include "common_compiler_test.h"
#include "compiler/elf_fixup.h"
#include "compiler/image_writer.h"
#include "compiler/oat_writer.h"
#include "gc/space/image_space.h"
#include "lock_word.h"
#include "mirror/object-inl.h"
#include "signal_catcher.h"
#include "UniquePtr.h"
#include "utils.h"
#include "vector_output_stream.h"
namespace art {
class ImageTest : public CommonCompilerTest {
protected:
virtual void SetUp() {
ReserveImageSpace();
CommonCompilerTest::SetUp();
}
};
TEST_F(ImageTest, WriteRead) {
// Create a root tmp file, to be the base of the .art and .oat temporary files.
ScratchFile tmp;
ScratchFile tmp_elf(tmp, "oat");
{
{
jobject class_loader = NULL;
ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
TimingLogger timings("ImageTest::WriteRead", false, false);
timings.StartSplit("CompileAll");
if (kUsePortableCompiler) {
// TODO: we disable this for portable so the test executes in a reasonable amount of time.
// We shouldn't need to do this.
compiler_options_->SetCompilerFilter(CompilerOptions::kInterpretOnly);
}
for (const DexFile* dex_file : class_linker->GetBootClassPath()) {
dex_file->EnableWrite();
}
compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), &timings);
ScopedObjectAccess soa(Thread::Current());
OatWriter oat_writer(class_linker->GetBootClassPath(),
0, 0, "", compiler_driver_.get(), &timings);
bool success = compiler_driver_->WriteElf(GetTestAndroidRoot(),
!kIsTargetBuild,
class_linker->GetBootClassPath(),
&oat_writer,
tmp_elf.GetFile());
ASSERT_TRUE(success);
timings.EndSplit();
}
}
// Workound bug that mcld::Linker::emit closes tmp_elf by reopening as tmp_oat.
UniquePtr<File> tmp_oat(OS::OpenFileReadWrite(tmp_elf.GetFilename().c_str()));
ASSERT_TRUE(tmp_oat.get() != NULL);
ScratchFile tmp_image(tmp, "art");
const uintptr_t requested_image_base = ART_BASE_ADDRESS;
{
ImageWriter writer(*compiler_driver_.get());
bool success_image = writer.Write(tmp_image.GetFilename(), requested_image_base,
tmp_oat->GetPath(), tmp_oat->GetPath());
ASSERT_TRUE(success_image);
bool success_fixup = ElfFixup::Fixup(tmp_oat.get(), writer.GetOatDataBegin());
ASSERT_TRUE(success_fixup);
}
{
UniquePtr<File> file(OS::OpenFileForReading(tmp_image.GetFilename().c_str()));
ASSERT_TRUE(file.get() != NULL);
ImageHeader image_header;
file->ReadFully(&image_header, sizeof(image_header));
ASSERT_TRUE(image_header.IsValid());
ASSERT_GE(image_header.GetImageBitmapOffset(), sizeof(image_header));
ASSERT_NE(0U, image_header.GetImageBitmapSize());
gc::Heap* heap = Runtime::Current()->GetHeap();
ASSERT_TRUE(!heap->GetContinuousSpaces().empty());
gc::space::ContinuousSpace* space = heap->GetNonMovingSpace();
ASSERT_FALSE(space->IsImageSpace());
ASSERT_TRUE(space != NULL);
ASSERT_TRUE(space->IsMallocSpace());
ASSERT_GE(sizeof(image_header) + space->Size(), static_cast<size_t>(file->GetLength()));
}
ASSERT_TRUE(compiler_driver_->GetImageClasses() != NULL);
CompilerDriver::DescriptorSet image_classes(*compiler_driver_->GetImageClasses());
// Need to delete the compiler since it has worker threads which are attached to runtime.
compiler_driver_.reset();
// Tear down old runtime before making a new one, clearing out misc state.
runtime_.reset();
java_lang_dex_file_ = NULL;
std::string error_msg;
UniquePtr<const DexFile> dex(DexFile::Open(GetLibCoreDexFileName().c_str(),
GetLibCoreDexFileName().c_str(),
&error_msg));
ASSERT_TRUE(dex.get() != nullptr) << error_msg;
// Remove the reservation of the memory for use to load the image.
UnreserveImageSpace();
Runtime::Options options;
std::string image("-Ximage:");
image.append(tmp_image.GetFilename());
options.push_back(std::make_pair(image.c_str(), reinterpret_cast<void*>(NULL)));
if (!Runtime::Create(options, false)) {
LOG(FATAL) << "Failed to create runtime";
return;
}
runtime_.reset(Runtime::Current());
// Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start,
// give it away now and then switch to a more managable ScopedObjectAccess.
Thread::Current()->TransitionFromRunnableToSuspended(kNative);
ScopedObjectAccess soa(Thread::Current());
ASSERT_TRUE(runtime_.get() != NULL);
class_linker_ = runtime_->GetClassLinker();
gc::Heap* heap = Runtime::Current()->GetHeap();
ASSERT_TRUE(heap->HasImageSpace());
ASSERT_TRUE(heap->GetNonMovingSpace()->IsMallocSpace());
gc::space::ImageSpace* image_space = heap->GetImageSpace();
image_space->VerifyImageAllocations();
byte* image_begin = image_space->Begin();
byte* image_end = image_space->End();
CHECK_EQ(requested_image_base, reinterpret_cast<uintptr_t>(image_begin));
for (size_t i = 0; i < dex->NumClassDefs(); ++i) {
const DexFile::ClassDef& class_def = dex->GetClassDef(i);
const char* descriptor = dex->GetClassDescriptor(class_def);
mirror::Class* klass = class_linker_->FindSystemClass(soa.Self(), descriptor);
EXPECT_TRUE(klass != nullptr) << descriptor;
if (image_classes.find(descriptor) != image_classes.end()) {
// Image classes should be located inside the image.
EXPECT_LT(image_begin, reinterpret_cast<byte*>(klass)) << descriptor;
EXPECT_LT(reinterpret_cast<byte*>(klass), image_end) << descriptor;
} else {
EXPECT_TRUE(reinterpret_cast<byte*>(klass) >= image_end ||
reinterpret_cast<byte*>(klass) < image_begin) << descriptor;
}
EXPECT_TRUE(Monitor::IsValidLockWord(klass->GetLockWord(false)));
}
}
TEST_F(ImageTest, ImageHeaderIsValid) {
uint32_t image_begin = ART_BASE_ADDRESS;
uint32_t image_size_ = 16 * KB;
uint32_t image_bitmap_offset = 0;
uint32_t image_bitmap_size = 0;
uint32_t image_roots = ART_BASE_ADDRESS + (1 * KB);
uint32_t oat_checksum = 0;
uint32_t oat_file_begin = ART_BASE_ADDRESS + (4 * KB); // page aligned
uint32_t oat_data_begin = ART_BASE_ADDRESS + (8 * KB); // page aligned
uint32_t oat_data_end = ART_BASE_ADDRESS + (9 * KB);
uint32_t oat_file_end = ART_BASE_ADDRESS + (10 * KB);
ImageHeader image_header(image_begin,
image_size_,
image_bitmap_offset,
image_bitmap_size,
image_roots,
oat_checksum,
oat_file_begin,
oat_data_begin,
oat_data_end,
oat_file_end);
ASSERT_TRUE(image_header.IsValid());
char* magic = const_cast<char*>(image_header.GetMagic());
strcpy(magic, ""); // bad magic
ASSERT_FALSE(image_header.IsValid());
strcpy(magic, "art\n000"); // bad version
ASSERT_FALSE(image_header.IsValid());
}
} // namespace art
|
