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1 /*
2  * Copyright (C) 2017 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 <fstream>
18 #include <regex>
19 #include <sstream>
20 #include <string>
21 #include <vector>
22 
23 #include <sys/mman.h>
24 #include <sys/wait.h>
25 #include <unistd.h>
26 
27 #include <android-base/logging.h>
28 #include <android-base/stringprintf.h>
29 #include <android-base/strings.h>
30 
31 #include "common_runtime_test.h"
32 
33 #include "base/array_ref.h"
34 #include "base/file_utils.h"
35 #include "base/macros.h"
36 #include "base/mem_map.h"
37 #include "base/string_view_cpp20.h"
38 #include "base/unix_file/fd_file.h"
39 #include "base/utils.h"
40 #include "dex/art_dex_file_loader.h"
41 #include "dex/dex_file-inl.h"
42 #include "dex/dex_file_loader.h"
43 #include "dex/method_reference.h"
44 #include "dex/type_reference.h"
45 #include "gc/space/image_space.h"
46 #include "runtime.h"
47 #include "scoped_thread_state_change-inl.h"
48 #include "thread-current-inl.h"
49 
50 namespace art {
51 
52 // A suitable address for loading the core images.
53 constexpr uint32_t kBaseAddress = ART_BASE_ADDRESS;
54 
55 struct ImageSizes {
56   size_t art_size = 0;
57   size_t oat_size = 0;
58   size_t vdex_size = 0;
59 };
60 
operator <<(std::ostream & os,const ImageSizes & sizes)61 std::ostream& operator<<(std::ostream& os, const ImageSizes& sizes) {
62   os << "art=" << sizes.art_size << " oat=" << sizes.oat_size << " vdex=" << sizes.vdex_size;
63   return os;
64 }
65 
66 class Dex2oatImageTest : public CommonRuntimeTest {
67  public:
TearDown()68   void TearDown() override {}
69 
70  protected:
SetUpRuntimeOptions(RuntimeOptions * options)71   void SetUpRuntimeOptions(RuntimeOptions* options) override {
72     // Disable implicit dex2oat invocations when loading image spaces.
73     options->emplace_back("-Xnoimage-dex2oat", nullptr);
74   }
75 
WriteLine(File * file,std::string line)76   static void WriteLine(File* file, std::string line) {
77     line += '\n';
78     EXPECT_TRUE(file->WriteFully(&line[0], line.length()));
79   }
80 
AddRuntimeArg(std::vector<std::string> & args,const std::string & arg)81   void AddRuntimeArg(std::vector<std::string>& args, const std::string& arg) {
82     args.push_back("--runtime-arg");
83     args.push_back(arg);
84   }
85 
CompileImageAndGetSizes(ArrayRef<const std::string> dex_files,const std::vector<std::string> & extra_args)86   ImageSizes CompileImageAndGetSizes(ArrayRef<const std::string> dex_files,
87                                      const std::vector<std::string>& extra_args) {
88     ImageSizes ret;
89     ScratchDir scratch;
90     std::string filename_prefix = scratch.GetPath() + "boot";
91     std::vector<std::string> local_extra_args = extra_args;
92     local_extra_args.push_back(android::base::StringPrintf("--base=0x%08x", kBaseAddress));
93     std::string error_msg;
94     if (!CompileBootImage(local_extra_args, filename_prefix, dex_files, &error_msg)) {
95       LOG(ERROR) << "Failed to compile image " << filename_prefix << error_msg;
96     }
97     std::string art_file = filename_prefix + ".art";
98     std::string oat_file = filename_prefix + ".oat";
99     std::string vdex_file = filename_prefix + ".vdex";
100     int64_t art_size = OS::GetFileSizeBytes(art_file.c_str());
101     int64_t oat_size = OS::GetFileSizeBytes(oat_file.c_str());
102     int64_t vdex_size = OS::GetFileSizeBytes(vdex_file.c_str());
103     CHECK_GT(art_size, 0u) << art_file;
104     CHECK_GT(oat_size, 0u) << oat_file;
105     CHECK_GT(vdex_size, 0u) << vdex_file;
106     ret.art_size = art_size;
107     ret.oat_size = oat_size;
108     ret.vdex_size = vdex_size;
109     return ret;
110   }
111 
ReserveCoreImageAddressSpace(std::string * error_msg)112   MemMap ReserveCoreImageAddressSpace(/*out*/std::string* error_msg) {
113     constexpr size_t kReservationSize = 256 * MB;  // This should be enough for the compiled images.
114     // Extend to both directions for maximum relocation difference.
115     static_assert(ART_BASE_ADDRESS_MIN_DELTA < 0);
116     static_assert(ART_BASE_ADDRESS_MAX_DELTA > 0);
117     static_assert(IsAligned<kPageSize>(ART_BASE_ADDRESS_MIN_DELTA));
118     static_assert(IsAligned<kPageSize>(ART_BASE_ADDRESS_MAX_DELTA));
119     constexpr size_t kExtra = ART_BASE_ADDRESS_MAX_DELTA - ART_BASE_ADDRESS_MIN_DELTA;
120     uint32_t min_relocated_address = kBaseAddress + ART_BASE_ADDRESS_MIN_DELTA;
121     return MemMap::MapAnonymous("Reservation",
122                                 reinterpret_cast<uint8_t*>(min_relocated_address),
123                                 kReservationSize + kExtra,
124                                 PROT_NONE,
125                                 /*low_4gb=*/ true,
126                                 /*reuse=*/ false,
127                                 /*reservation=*/ nullptr,
128                                 error_msg);
129   }
130 
CopyDexFiles(const std::string & dir,std::vector<std::string> * dex_files)131   void CopyDexFiles(const std::string& dir, /*inout*/std::vector<std::string>* dex_files) {
132     CHECK(EndsWith(dir, "/"));
133     for (std::string& dex_file : *dex_files) {
134       size_t slash_pos = dex_file.rfind('/');
135       CHECK(OS::FileExists(dex_file.c_str())) << dex_file;
136       CHECK_NE(std::string::npos, slash_pos);
137       std::string new_location = dir + dex_file.substr(slash_pos + 1u);
138       std::ifstream src_stream(dex_file, std::ios::binary);
139       std::ofstream dst_stream(new_location, std::ios::binary);
140       dst_stream << src_stream.rdbuf();
141       dex_file = new_location;
142     }
143   }
144 
CompareFiles(const std::string & filename1,const std::string & filename2)145   bool CompareFiles(const std::string& filename1, const std::string& filename2) {
146     std::unique_ptr<File> file1(OS::OpenFileForReading(filename1.c_str()));
147     std::unique_ptr<File> file2(OS::OpenFileForReading(filename2.c_str()));
148     // Did we open the files?
149     if (file1 == nullptr || file2 == nullptr) {
150       return false;
151     }
152     // Are they non-empty and the same length?
153     if (file1->GetLength() <= 0 || file2->GetLength() != file1->GetLength()) {
154       return false;
155     }
156     return file1->Compare(file2.get()) == 0;
157   }
158 
AddAndroidRootToImageCompilerOptions()159   void AddAndroidRootToImageCompilerOptions() {
160     const char* android_root = getenv("ANDROID_ROOT");
161     CHECK(android_root != nullptr);
162     Runtime::Current()->image_compiler_options_.push_back(
163         "--android-root=" + std::string(android_root));
164   }
165 
EnableImageDex2Oat()166   void EnableImageDex2Oat() {
167     Runtime::Current()->image_dex2oat_enabled_ = true;
168   }
169 
DisableImageDex2Oat()170   void DisableImageDex2Oat() {
171     Runtime::Current()->image_dex2oat_enabled_ = false;
172   }
173 };
174 
TEST_F(Dex2oatImageTest,TestModesAndFilters)175 TEST_F(Dex2oatImageTest, TestModesAndFilters) {
176   // This test crashes on the gtest-heap-poisoning configuration
177   // (AddressSanitizer + CMS/RosAlloc + heap-poisoning); see b/111061592.
178   // Temporarily disable this test on this configuration to keep
179   // our automated build/testing green while we work on a fix.
180   TEST_DISABLED_FOR_MEMORY_TOOL_WITH_HEAP_POISONING_WITHOUT_READ_BARRIERS();
181   if (kIsTargetBuild) {
182     // This test is too slow for target builds.
183     return;
184   }
185   // Compile only a subset of the libcore dex files to make this test shorter.
186   std::vector<std::string> libcore_dex_files = GetLibCoreDexFileNames();
187   // The primary image must contain at least core-oj and core-libart to initialize the runtime.
188   ASSERT_NE(std::string::npos, libcore_dex_files[0].find("core-oj"));
189   ASSERT_NE(std::string::npos, libcore_dex_files[1].find("core-libart"));
190   ArrayRef<const std::string> dex_files =
191       ArrayRef<const std::string>(libcore_dex_files).SubArray(/*pos=*/ 0u, /*length=*/ 2u);
192 
193   ImageSizes base_sizes = CompileImageAndGetSizes(dex_files, {});
194   ImageSizes everything_sizes;
195   ImageSizes filter_sizes;
196   std::cout << "Base compile sizes " << base_sizes << std::endl;
197   // Compile all methods and classes
198   std::vector<std::string> libcore_dexes = GetLibCoreDexFileNames();
199   ArrayRef<const std::string> libcore_dexes_array(libcore_dexes);
200   {
201     ScratchFile profile_file;
202     GenerateBootProfile(libcore_dexes_array,
203                         profile_file.GetFile(),
204                         /*method_frequency=*/ 1u,
205                         /*type_frequency=*/ 1u);
206     everything_sizes = CompileImageAndGetSizes(
207         dex_files,
208         {"--profile-file=" + profile_file.GetFilename(),
209          "--compiler-filter=speed-profile"});
210     profile_file.Close();
211     std::cout << "All methods and classes sizes " << everything_sizes << std::endl;
212     // Putting all classes as image classes should increase art size
213     EXPECT_GE(everything_sizes.art_size, base_sizes.art_size);
214     // Check that dex is the same size.
215     EXPECT_EQ(everything_sizes.vdex_size, base_sizes.vdex_size);
216   }
217   static size_t kMethodFrequency = 3;
218   static size_t kTypeFrequency = 4;
219   // Test compiling fewer methods and classes.
220   {
221     ScratchFile profile_file;
222     GenerateBootProfile(libcore_dexes_array,
223                         profile_file.GetFile(),
224                         kMethodFrequency,
225                         kTypeFrequency);
226     filter_sizes = CompileImageAndGetSizes(
227         dex_files,
228         {"--profile-file=" + profile_file.GetFilename(),
229          "--compiler-filter=speed-profile"});
230     profile_file.Close();
231     std::cout << "Fewer methods and classes sizes " << filter_sizes << std::endl;
232     EXPECT_LE(filter_sizes.art_size, everything_sizes.art_size);
233     EXPECT_LE(filter_sizes.oat_size, everything_sizes.oat_size);
234     EXPECT_LE(filter_sizes.vdex_size, everything_sizes.vdex_size);
235   }
236   // Test dirty image objects.
237   {
238     ScratchFile classes;
239     VisitDexes(libcore_dexes_array,
240                VoidFunctor(),
241                [&](TypeReference ref) {
242       WriteLine(classes.GetFile(), ref.dex_file->PrettyType(ref.TypeIndex()));
243     }, /*method_frequency=*/ 1u, /*class_frequency=*/ 1u);
244     ImageSizes image_classes_sizes = CompileImageAndGetSizes(
245         dex_files,
246         {"--dirty-image-objects=" + classes.GetFilename()});
247     classes.Close();
248     std::cout << "Dirty image object sizes " << image_classes_sizes << std::endl;
249   }
250 }
251 
TEST_F(Dex2oatImageTest,TestExtension)252 TEST_F(Dex2oatImageTest, TestExtension) {
253   std::string error_msg;
254   MemMap reservation = ReserveCoreImageAddressSpace(&error_msg);
255   ASSERT_TRUE(reservation.IsValid()) << error_msg;
256 
257   ScratchDir scratch;
258   const std::string& scratch_dir = scratch.GetPath();
259   std::string image_dir = scratch_dir + GetInstructionSetString(kRuntimeISA);
260   int mkdir_result = mkdir(image_dir.c_str(), 0700);
261   ASSERT_EQ(0, mkdir_result);
262   std::string filename_prefix = image_dir + "/boot";
263 
264   // Copy the libcore dex files to a custom dir inside `scratch_dir` so that we do not
265   // accidentally load pre-compiled core images from their original directory based on BCP paths.
266   std::string jar_dir = scratch_dir + "jars";
267   mkdir_result = mkdir(jar_dir.c_str(), 0700);
268   ASSERT_EQ(0, mkdir_result);
269   jar_dir += '/';
270   std::vector<std::string> libcore_dex_files = GetLibCoreDexFileNames();
271   CopyDexFiles(jar_dir, &libcore_dex_files);
272 
273   ArrayRef<const std::string> full_bcp(libcore_dex_files);
274   size_t total_dex_files = full_bcp.size();
275   ASSERT_GE(total_dex_files, 4u);  // 2 for "head", 1 for "tail", at least one for "mid", see below.
276 
277   // The primary image must contain at least core-oj and core-libart to initialize the runtime.
278   ASSERT_NE(std::string::npos, full_bcp[0].find("core-oj"));
279   ASSERT_NE(std::string::npos, full_bcp[1].find("core-libart"));
280   ArrayRef<const std::string> head_dex_files = full_bcp.SubArray(/*pos=*/ 0u, /*length=*/ 2u);
281   // Middle part is everything else except for conscrypt.
282   ASSERT_NE(std::string::npos, full_bcp[full_bcp.size() - 1u].find("conscrypt"));
283   ArrayRef<const std::string> mid_bcp =
284       full_bcp.SubArray(/*pos=*/ 0u, /*length=*/ total_dex_files - 1u);
285   ArrayRef<const std::string> mid_dex_files = mid_bcp.SubArray(/*pos=*/ 2u);
286   // Tail is just the conscrypt.
287   ArrayRef<const std::string> tail_dex_files =
288       full_bcp.SubArray(/*pos=*/ total_dex_files - 1u, /*length=*/ 1u);
289 
290   // Prepare the "head", "mid" and "tail" names and locations.
291   std::string base_name = "boot.art";
292   std::string base_location = scratch_dir + base_name;
293   std::vector<std::string> expanded_mid = gc::space::ImageSpace::ExpandMultiImageLocations(
294       mid_dex_files.SubArray(/*pos=*/ 0u, /*length=*/ 1u),
295       base_location,
296       /*boot_image_extension=*/ true);
297   CHECK_EQ(1u, expanded_mid.size());
298   std::string mid_location = expanded_mid[0];
299   size_t mid_slash_pos = mid_location.rfind('/');
300   ASSERT_NE(std::string::npos, mid_slash_pos);
301   std::string mid_name = mid_location.substr(mid_slash_pos + 1u);
302   CHECK_EQ(1u, tail_dex_files.size());
303   std::vector<std::string> expanded_tail = gc::space::ImageSpace::ExpandMultiImageLocations(
304       tail_dex_files, base_location, /*boot_image_extension=*/ true);
305   CHECK_EQ(1u, expanded_tail.size());
306   std::string tail_location = expanded_tail[0];
307   size_t tail_slash_pos = tail_location.rfind('/');
308   ASSERT_NE(std::string::npos, tail_slash_pos);
309   std::string tail_name = tail_location.substr(tail_slash_pos + 1u);
310 
311   // Create profiles.
312   ScratchFile head_profile_file;
313   GenerateBootProfile(head_dex_files,
314                       head_profile_file.GetFile(),
315                       /*method_frequency=*/ 1u,
316                       /*type_frequency=*/ 1u);
317   const std::string& head_profile_filename = head_profile_file.GetFilename();
318   ScratchFile mid_profile_file;
319   GenerateBootProfile(mid_dex_files,
320                       mid_profile_file.GetFile(),
321                       /*method_frequency=*/ 5u,
322                       /*type_frequency=*/ 4u);
323   const std::string& mid_profile_filename = mid_profile_file.GetFilename();
324   ScratchFile tail_profile_file;
325   GenerateBootProfile(tail_dex_files,
326                       tail_profile_file.GetFile(),
327                       /*method_frequency=*/ 5u,
328                       /*type_frequency=*/ 4u);
329   const std::string& tail_profile_filename = tail_profile_file.GetFilename();
330 
331   // Compile the "head", i.e. the primary boot image.
332   std::vector<std::string> extra_args;
333   extra_args.push_back("--profile-file=" + head_profile_filename);
334   extra_args.push_back(android::base::StringPrintf("--base=0x%08x", kBaseAddress));
335   bool head_ok = CompileBootImage(extra_args, filename_prefix, head_dex_files, &error_msg);
336   ASSERT_TRUE(head_ok) << error_msg;
337 
338   // Compile the "mid", i.e. the first extension.
339   std::string mid_bcp_string = android::base::Join(mid_bcp, ':');
340   extra_args.clear();
341   extra_args.push_back("--profile-file=" + mid_profile_filename);
342   AddRuntimeArg(extra_args, "-Xbootclasspath:" + mid_bcp_string);
343   AddRuntimeArg(extra_args, "-Xbootclasspath-locations:" + mid_bcp_string);
344   extra_args.push_back("--boot-image=" + base_location);
345   bool mid_ok = CompileBootImage(extra_args, filename_prefix, mid_dex_files, &error_msg);
346   ASSERT_TRUE(mid_ok) << error_msg;
347 
348   // Try to compile the "tail" without specifying the "mid" extension. This shall fail.
349   extra_args.clear();
350   extra_args.push_back("--profile-file=" + tail_profile_filename);
351   std::string full_bcp_string = android::base::Join(full_bcp, ':');
352   AddRuntimeArg(extra_args, "-Xbootclasspath:" + full_bcp_string);
353   AddRuntimeArg(extra_args, "-Xbootclasspath-locations:" + full_bcp_string);
354   extra_args.push_back("--boot-image=" + base_location);
355   bool tail_ok = CompileBootImage(extra_args, filename_prefix, tail_dex_files, &error_msg);
356   ASSERT_FALSE(tail_ok) << error_msg;
357 
358   // Now compile the tail against both "head" and "mid".
359   CHECK(StartsWith(extra_args.back(), "--boot-image="));
360   extra_args.back() = "--boot-image=" + base_location + ':' + mid_location;
361   tail_ok = CompileBootImage(extra_args, filename_prefix, tail_dex_files, &error_msg);
362   ASSERT_TRUE(tail_ok) << error_msg;
363 
364   // Prepare directory for the single-image test that squashes the "mid" and "tail".
365   std::string single_dir = scratch_dir + "single";
366   mkdir_result = mkdir(single_dir.c_str(), 0700);
367   ASSERT_EQ(0, mkdir_result);
368   single_dir += '/';
369   std::string single_image_dir = single_dir + GetInstructionSetString(kRuntimeISA);
370   mkdir_result = mkdir(single_image_dir.c_str(), 0700);
371   ASSERT_EQ(0, mkdir_result);
372   std::string single_filename_prefix = single_image_dir + "/boot";
373 
374   // The dex files for the single-image are everything not in the "head".
375   ArrayRef<const std::string> single_dex_files = full_bcp.SubArray(/*pos=*/ head_dex_files.size());
376 
377   // Create a smaller profile for the single-image test that squashes the "mid" and "tail".
378   ScratchFile single_profile_file;
379   GenerateBootProfile(single_dex_files,
380                       single_profile_file.GetFile(),
381                       /*method_frequency=*/ 5u,
382                       /*type_frequency=*/ 4u);
383   const std::string& single_profile_filename = single_profile_file.GetFilename();
384 
385   // Prepare the single image name and location.
386   CHECK_GE(single_dex_files.size(), 2u);
387   std::string single_base_location = single_dir + base_name;
388   std::vector<std::string> expanded_single = gc::space::ImageSpace::ExpandMultiImageLocations(
389       single_dex_files.SubArray(/*pos=*/ 0u, /*length=*/ 1u),
390       single_base_location,
391       /*boot_image_extension=*/ true);
392   CHECK_EQ(1u, expanded_single.size());
393   std::string single_location = expanded_single[0];
394   size_t single_slash_pos = single_location.rfind('/');
395   ASSERT_NE(std::string::npos, single_slash_pos);
396   std::string single_name = single_location.substr(single_slash_pos + 1u);
397   CHECK_EQ(single_name, mid_name);
398 
399   // Compile the single-image against the primary boot image.
400   extra_args.clear();
401   extra_args.push_back("--profile-file=" + single_profile_filename);
402   AddRuntimeArg(extra_args, "-Xbootclasspath:" + full_bcp_string);
403   AddRuntimeArg(extra_args, "-Xbootclasspath-locations:" + full_bcp_string);
404   extra_args.push_back("--boot-image=" + base_location);
405   extra_args.push_back("--single-image");
406   extra_args.push_back("--avoid-storing-invocation");  // For comparison below.
407   error_msg.clear();
408   bool single_ok =
409       CompileBootImage(extra_args, single_filename_prefix, single_dex_files, &error_msg);
410   ASSERT_TRUE(single_ok) << error_msg;
411 
412   reservation = MemMap::Invalid();  // Free the reserved memory for loading images.
413 
414   // Try to load the boot image with different image locations.
415   std::vector<std::string> boot_class_path = libcore_dex_files;
416   std::vector<std::unique_ptr<gc::space::ImageSpace>> boot_image_spaces;
417   bool relocate = false;
418   MemMap extra_reservation;
419   auto load = [&](const std::string& image_location) {
420     boot_image_spaces.clear();
421     extra_reservation = MemMap::Invalid();
422     ScopedObjectAccess soa(Thread::Current());
423     return gc::space::ImageSpace::LoadBootImage(/*boot_class_path=*/ boot_class_path,
424                                                 /*boot_class_path_locations=*/ libcore_dex_files,
425                                                 /*boot_class_path_fds=*/ std::vector<int>(),
426                                                 /*boot_class_path_image_fds=*/ std::vector<int>(),
427                                                 /*boot_class_path_vdex_fds=*/ std::vector<int>(),
428                                                 /*boot_class_path_oat_fds=*/ std::vector<int>(),
429                                                 android::base::Split(image_location, ":"),
430                                                 kRuntimeISA,
431                                                 relocate,
432                                                 /*executable=*/ true,
433                                                 /*extra_reservation_size=*/ 0u,
434                                                 &boot_image_spaces,
435                                                 &extra_reservation);
436   };
437   auto silent_load = [&](const std::string& image_location) {
438     ScopedLogSeverity quiet(LogSeverity::FATAL);
439     return load(image_location);
440   };
441 
442   for (bool r : { false, true }) {
443     relocate = r;
444 
445     // Load primary image with full path.
446     bool load_ok = load(base_location);
447     ASSERT_TRUE(load_ok) << error_msg;
448     ASSERT_FALSE(extra_reservation.IsValid());
449     ASSERT_EQ(head_dex_files.size(), boot_image_spaces.size());
450 
451     // Fail to load primary image with just the name.
452     load_ok = silent_load(base_name);
453     ASSERT_FALSE(load_ok);
454 
455     // Fail to load primary image with a search path.
456     load_ok = silent_load("*");
457     ASSERT_FALSE(load_ok);
458     load_ok = silent_load(scratch_dir + "*");
459     ASSERT_FALSE(load_ok);
460 
461     // Load the primary and first extension with full path.
462     load_ok = load(base_location + ':' + mid_location);
463     ASSERT_TRUE(load_ok) << error_msg;
464     ASSERT_EQ(mid_bcp.size(), boot_image_spaces.size());
465 
466     // Load the primary with full path and fail to load first extension without full path.
467     load_ok = load(base_location + ':' + mid_name);
468     ASSERT_TRUE(load_ok) << error_msg;  // Primary image loaded successfully.
469     ASSERT_EQ(head_dex_files.size(), boot_image_spaces.size());  // But only the primary image.
470 
471     // Load all the libcore images with full paths.
472     load_ok = load(base_location + ':' + mid_location + ':' + tail_location);
473     ASSERT_TRUE(load_ok) << error_msg;
474     ASSERT_EQ(full_bcp.size(), boot_image_spaces.size());
475 
476     // Load the primary and first extension with full paths, fail to load second extension by name.
477     load_ok = load(base_location + ':' + mid_location + ':' + tail_name);
478     ASSERT_TRUE(load_ok) << error_msg;
479     ASSERT_EQ(mid_bcp.size(), boot_image_spaces.size());
480 
481     // Load the primary with full path and fail to load first extension without full path,
482     // fail to load second extension because it depends on the first.
483     load_ok = load(base_location + ':' + mid_name + ':' + tail_location);
484     ASSERT_TRUE(load_ok) << error_msg;  // Primary image loaded successfully.
485     ASSERT_EQ(head_dex_files.size(), boot_image_spaces.size());  // But only the primary image.
486 
487     // Load the primary with full path and extensions with a specified search path.
488     load_ok = load(base_location + ':' + scratch_dir + '*');
489     ASSERT_TRUE(load_ok) << error_msg;
490     ASSERT_EQ(full_bcp.size(), boot_image_spaces.size());
491 
492     // Load the primary with full path and fail to find extensions in BCP path.
493     load_ok = load(base_location + ":*");
494     ASSERT_TRUE(load_ok) << error_msg;
495     ASSERT_EQ(head_dex_files.size(), boot_image_spaces.size());
496   }
497 
498   // Now copy the libcore dex files to the `scratch_dir` and retry loading the boot image
499   // with BCP in the scratch_dir so that the images can be found based on BCP paths.
500   CopyDexFiles(scratch_dir, &boot_class_path);
501 
502   for (bool r : { false, true }) {
503     relocate = r;
504 
505     // Loading the primary image with just the name now succeeds.
506     bool load_ok = load(base_name);
507     ASSERT_TRUE(load_ok) << error_msg;
508     ASSERT_EQ(head_dex_files.size(), boot_image_spaces.size());
509 
510     // Loading the primary image with a search path still fails.
511     load_ok = silent_load("*");
512     ASSERT_FALSE(load_ok);
513     load_ok = silent_load(scratch_dir + "*");
514     ASSERT_FALSE(load_ok);
515 
516     // Load the primary and first extension without paths.
517     load_ok = load(base_name + ':' + mid_name);
518     ASSERT_TRUE(load_ok) << error_msg;
519     ASSERT_EQ(mid_bcp.size(), boot_image_spaces.size());
520 
521     // Load the primary without path and first extension with path.
522     load_ok = load(base_name + ':' + mid_location);
523     ASSERT_TRUE(load_ok) << error_msg;
524     ASSERT_EQ(mid_bcp.size(), boot_image_spaces.size());
525 
526     // Load the primary with full path and the first extension without full path.
527     load_ok = load(base_location + ':' + mid_name);
528     ASSERT_TRUE(load_ok) << error_msg;  // Loaded successfully.
529     ASSERT_EQ(mid_bcp.size(), boot_image_spaces.size());  // Including the extension.
530 
531     // Load all the libcore images without paths.
532     load_ok = load(base_name + ':' + mid_name + ':' + tail_name);
533     ASSERT_TRUE(load_ok) << error_msg;
534     ASSERT_EQ(full_bcp.size(), boot_image_spaces.size());
535 
536     // Load the primary and first extension with full paths and second extension by name.
537     load_ok = load(base_location + ':' + mid_location + ':' + tail_name);
538     ASSERT_TRUE(load_ok) << error_msg;
539     ASSERT_EQ(full_bcp.size(), boot_image_spaces.size());
540 
541     // Load the primary with full path, first extension without path,
542     // and second extension with full path.
543     load_ok = load(base_location + ':' + mid_name + ':' + tail_location);
544     ASSERT_TRUE(load_ok) << error_msg;  // Loaded successfully.
545     ASSERT_EQ(full_bcp.size(), boot_image_spaces.size());  // Including both extensions.
546 
547     // Load the primary with full path and find both extensions in BCP path.
548     load_ok = load(base_location + ":*");
549     ASSERT_TRUE(load_ok) << error_msg;
550     ASSERT_EQ(full_bcp.size(), boot_image_spaces.size());
551 
552     // Fail to load any images with invalid image locations (named component after search paths).
553     load_ok = silent_load(base_location + ":*:" + tail_location);
554     ASSERT_FALSE(load_ok);
555     load_ok = silent_load(base_location + ':' + scratch_dir + "*:" + tail_location);
556     ASSERT_FALSE(load_ok);
557 
558     // Load the primary and single-image extension with full path.
559     load_ok = load(base_location + ':' + single_location);
560     ASSERT_TRUE(load_ok) << error_msg;
561     ASSERT_EQ(head_dex_files.size() + 1u, boot_image_spaces.size());
562 
563     // Load the primary with full path and single-image extension with a specified search path.
564     load_ok = load(base_location + ':' + single_dir + '*');
565     ASSERT_TRUE(load_ok) << error_msg;
566     ASSERT_EQ(head_dex_files.size() + 1u, boot_image_spaces.size());
567   }
568 
569   // Recompile the single-image extension using file descriptors and compare contents.
570   std::vector<std::string> expanded_single_filename_prefix =
571       gc::space::ImageSpace::ExpandMultiImageLocations(
572           single_dex_files.SubArray(/*pos=*/ 0u, /*length=*/ 1u),
573           single_filename_prefix,
574           /*boot_image_extension=*/ true);
575   CHECK_EQ(1u, expanded_single_filename_prefix.size());
576   std::string single_ext_prefix = expanded_single_filename_prefix[0];
577   std::string single_ext_prefix2 = single_ext_prefix + "2";
578   error_msg.clear();
579   single_ok = CompileBootImage(extra_args,
580                                single_filename_prefix,
581                                single_dex_files,
582                                &error_msg,
583                                /*use_fd_prefix=*/ single_ext_prefix2);
584   ASSERT_TRUE(single_ok) << error_msg;
585   EXPECT_TRUE(CompareFiles(single_ext_prefix + ".art", single_ext_prefix2 + ".art"));
586   EXPECT_TRUE(CompareFiles(single_ext_prefix + ".vdex", single_ext_prefix2 + ".vdex"));
587   EXPECT_TRUE(CompareFiles(single_ext_prefix + ".oat", single_ext_prefix2 + ".oat"));
588 
589   // Test parsing profile specification and creating the boot image extension on-the-fly.
590   // We must set --android-root in the image compiler options.
591   AddAndroidRootToImageCompilerOptions();
592   for (bool r : { false, true }) {
593     relocate = r;
594 
595     // Load primary boot image with a profile name.
596     bool load_ok = silent_load(base_location + "!" + single_profile_filename);
597     ASSERT_TRUE(load_ok);
598 
599     // Try and fail to load with invalid spec, two profile name separators.
600     load_ok = silent_load(base_location + ":" + single_location + "!!arbitrary-profile-name");
601     ASSERT_FALSE(load_ok);
602 
603     // Try and fail to load with invalid spec, missing profile name.
604     load_ok = silent_load(base_location + ":" + single_location + "!");
605     ASSERT_FALSE(load_ok);
606 
607     // Try and fail to load with invalid spec, missing component name.
608     load_ok = silent_load(base_location + ":!" + single_profile_filename);
609     ASSERT_FALSE(load_ok);
610 
611     // Load primary boot image, specifying invalid extension component and profile name.
612     load_ok = load(base_location + ":/non-existent/" + single_name + "!non-existent-profile-name");
613     ASSERT_TRUE(load_ok) << error_msg;
614     ASSERT_EQ(head_dex_files.size(), boot_image_spaces.size());
615 
616     // Load primary boot image and the single extension, specifying invalid profile name.
617     // (Load extension from file.)
618     load_ok = load(base_location + ":" + single_location + "!non-existent-profile-name");
619     ASSERT_TRUE(load_ok) << error_msg;
620     ASSERT_EQ(head_dex_files.size() + 1u, boot_image_spaces.size());
621     ASSERT_EQ(single_dex_files.size(),
622               boot_image_spaces.back()->GetImageHeader().GetComponentCount());
623 
624     // Load primary boot image and fail to load the single extension, specifying
625     // invalid extension component name but a valid profile file.
626     // (Running dex2oat to compile extension is disabled.)
627     ASSERT_FALSE(Runtime::Current()->IsImageDex2OatEnabled());
628     load_ok = load(base_location + ":/non-existent/" + single_name + "!" + single_profile_filename);
629     ASSERT_TRUE(load_ok) << error_msg;
630     ASSERT_EQ(head_dex_files.size(), boot_image_spaces.size());
631 
632     EnableImageDex2Oat();
633 
634     // Load primary boot image and the single extension, specifying invalid extension
635     // component name but a valid profile file. (Compile extension by running dex2oat.)
636     load_ok = load(base_location + ":/non-existent/" + single_name + "!" + single_profile_filename);
637     ASSERT_TRUE(load_ok) << error_msg;
638     ASSERT_EQ(head_dex_files.size() + 1u, boot_image_spaces.size());
639     ASSERT_EQ(single_dex_files.size(),
640               boot_image_spaces.back()->GetImageHeader().GetComponentCount());
641 
642     // Load primary boot image and two extensions, specifying invalid extension component
643     // names but valid profile files. (Compile extensions by running dex2oat.)
644     load_ok = load(base_location + ":/non-existent/" + mid_name + "!" + mid_profile_filename
645                                  + ":/non-existent/" + tail_name + "!" + tail_profile_filename);
646     ASSERT_TRUE(load_ok) << error_msg;
647     ASSERT_EQ(head_dex_files.size() + 2u, boot_image_spaces.size());
648     ASSERT_EQ(mid_dex_files.size(),
649               boot_image_spaces[head_dex_files.size()]->GetImageHeader().GetComponentCount());
650     ASSERT_EQ(tail_dex_files.size(),
651               boot_image_spaces[head_dex_files.size() + 1u]->GetImageHeader().GetComponentCount());
652 
653     // Load primary boot image and fail to load extensions, specifying invalid component
654     // names but valid profile file only for the second one. As we fail to load the first
655     // extension, the second extension has a missing dependency and cannot be compiled.
656     load_ok = load(base_location + ":/non-existent/" + mid_name
657                                  + ":/non-existent/" + tail_name + "!" + tail_profile_filename);
658     ASSERT_TRUE(load_ok) << error_msg;
659     ASSERT_EQ(head_dex_files.size(), boot_image_spaces.size());
660 
661     DisableImageDex2Oat();
662   }
663 }
664 
665 }  // namespace art
666