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      1 /*
      2  * Copyright (C) 2012 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 "common_runtime_test.h"
     18 
     19 #include <dirent.h>
     20 #include <dlfcn.h>
     21 #include <fcntl.h>
     22 #include <ScopedLocalRef.h>
     23 
     24 #include "../../external/icu/icu4c/source/common/unicode/uvernum.h"
     25 #include "base/macros.h"
     26 #include "base/logging.h"
     27 #include "base/stl_util.h"
     28 #include "base/stringprintf.h"
     29 #include "base/unix_file/fd_file.h"
     30 #include "class_linker.h"
     31 #include "compiler_callbacks.h"
     32 #include "dex_file.h"
     33 #include "gc_root-inl.h"
     34 #include "gc/heap.h"
     35 #include "gtest/gtest.h"
     36 #include "jni_internal.h"
     37 #include "mirror/class_loader.h"
     38 #include "noop_compiler_callbacks.h"
     39 #include "os.h"
     40 #include "runtime-inl.h"
     41 #include "scoped_thread_state_change.h"
     42 #include "thread.h"
     43 #include "well_known_classes.h"
     44 
     45 int main(int argc, char **argv) {
     46   art::InitLogging(argv);
     47   LOG(INFO) << "Running main() from common_runtime_test.cc...";
     48   testing::InitGoogleTest(&argc, argv);
     49   return RUN_ALL_TESTS();
     50 }
     51 
     52 namespace art {
     53 
     54 ScratchFile::ScratchFile() {
     55   // ANDROID_DATA needs to be set
     56   CHECK_NE(static_cast<char*>(nullptr), getenv("ANDROID_DATA")) <<
     57       "Are you subclassing RuntimeTest?";
     58   filename_ = getenv("ANDROID_DATA");
     59   filename_ += "/TmpFile-XXXXXX";
     60   int fd = mkstemp(&filename_[0]);
     61   CHECK_NE(-1, fd);
     62   file_.reset(new File(fd, GetFilename()));
     63 }
     64 
     65 ScratchFile::ScratchFile(const ScratchFile& other, const char* suffix) {
     66   filename_ = other.GetFilename();
     67   filename_ += suffix;
     68   int fd = open(filename_.c_str(), O_RDWR | O_CREAT, 0666);
     69   CHECK_NE(-1, fd);
     70   file_.reset(new File(fd, GetFilename()));
     71 }
     72 
     73 ScratchFile::ScratchFile(File* file) {
     74   CHECK(file != NULL);
     75   filename_ = file->GetPath();
     76   file_.reset(file);
     77 }
     78 
     79 ScratchFile::~ScratchFile() {
     80   Unlink();
     81 }
     82 
     83 int ScratchFile::GetFd() const {
     84   return file_->Fd();
     85 }
     86 
     87 void ScratchFile::Unlink() {
     88   if (!OS::FileExists(filename_.c_str())) {
     89     return;
     90   }
     91   int unlink_result = unlink(filename_.c_str());
     92   CHECK_EQ(0, unlink_result);
     93 }
     94 
     95 CommonRuntimeTest::CommonRuntimeTest() {}
     96 CommonRuntimeTest::~CommonRuntimeTest() {}
     97 
     98 void CommonRuntimeTest::SetUpAndroidRoot() {
     99   if (IsHost()) {
    100     // $ANDROID_ROOT is set on the device, but not necessarily on the host.
    101     // But it needs to be set so that icu4c can find its locale data.
    102     const char* android_root_from_env = getenv("ANDROID_ROOT");
    103     if (android_root_from_env == nullptr) {
    104       // Use ANDROID_HOST_OUT for ANDROID_ROOT if it is set.
    105       const char* android_host_out = getenv("ANDROID_HOST_OUT");
    106       if (android_host_out != nullptr) {
    107         setenv("ANDROID_ROOT", android_host_out, 1);
    108       } else {
    109         // Build it from ANDROID_BUILD_TOP or cwd
    110         std::string root;
    111         const char* android_build_top = getenv("ANDROID_BUILD_TOP");
    112         if (android_build_top != nullptr) {
    113           root += android_build_top;
    114         } else {
    115           // Not set by build server, so default to current directory
    116           char* cwd = getcwd(nullptr, 0);
    117           setenv("ANDROID_BUILD_TOP", cwd, 1);
    118           root += cwd;
    119           free(cwd);
    120         }
    121 #if defined(__linux__)
    122         root += "/out/host/linux-x86";
    123 #elif defined(__APPLE__)
    124         root += "/out/host/darwin-x86";
    125 #else
    126 #error unsupported OS
    127 #endif
    128         setenv("ANDROID_ROOT", root.c_str(), 1);
    129       }
    130     }
    131     setenv("LD_LIBRARY_PATH", ":", 0);  // Required by java.lang.System.<clinit>.
    132 
    133     // Not set by build server, so default
    134     if (getenv("ANDROID_HOST_OUT") == nullptr) {
    135       setenv("ANDROID_HOST_OUT", getenv("ANDROID_ROOT"), 1);
    136     }
    137   }
    138 }
    139 
    140 void CommonRuntimeTest::SetUpAndroidData(std::string& android_data) {
    141   // On target, Cannot use /mnt/sdcard because it is mounted noexec, so use subdir of dalvik-cache
    142   if (IsHost()) {
    143     const char* tmpdir = getenv("TMPDIR");
    144     if (tmpdir != nullptr && tmpdir[0] != 0) {
    145       android_data = tmpdir;
    146     } else {
    147       android_data = "/tmp";
    148     }
    149   } else {
    150     android_data = "/data/dalvik-cache";
    151   }
    152   android_data += "/art-data-XXXXXX";
    153   if (mkdtemp(&android_data[0]) == nullptr) {
    154     PLOG(FATAL) << "mkdtemp(\"" << &android_data[0] << "\") failed";
    155   }
    156   setenv("ANDROID_DATA", android_data.c_str(), 1);
    157 }
    158 
    159 void CommonRuntimeTest::TearDownAndroidData(const std::string& android_data, bool fail_on_error) {
    160   if (fail_on_error) {
    161     ASSERT_EQ(rmdir(android_data.c_str()), 0);
    162   } else {
    163     rmdir(android_data.c_str());
    164   }
    165 }
    166 
    167 
    168 const DexFile* CommonRuntimeTest::LoadExpectSingleDexFile(const char* location) {
    169   std::vector<const DexFile*> dex_files;
    170   std::string error_msg;
    171   if (!DexFile::Open(location, location, &error_msg, &dex_files)) {
    172     LOG(FATAL) << "Could not open .dex file '" << location << "': " << error_msg << "\n";
    173     return nullptr;
    174   } else {
    175     CHECK_EQ(1U, dex_files.size()) << "Expected only one dex file in " << location;
    176     return dex_files[0];
    177   }
    178 }
    179 
    180 void CommonRuntimeTest::SetUp() {
    181   SetUpAndroidRoot();
    182   SetUpAndroidData(android_data_);
    183   dalvik_cache_.append(android_data_.c_str());
    184   dalvik_cache_.append("/dalvik-cache");
    185   int mkdir_result = mkdir(dalvik_cache_.c_str(), 0700);
    186   ASSERT_EQ(mkdir_result, 0);
    187 
    188   MemMap::Init();  // For LoadExpectSingleDexFile
    189 
    190   std::string error_msg;
    191   java_lang_dex_file_ = LoadExpectSingleDexFile(GetLibCoreDexFileName().c_str());
    192   boot_class_path_.push_back(java_lang_dex_file_);
    193 
    194   std::string min_heap_string(StringPrintf("-Xms%zdm", gc::Heap::kDefaultInitialSize / MB));
    195   std::string max_heap_string(StringPrintf("-Xmx%zdm", gc::Heap::kDefaultMaximumSize / MB));
    196 
    197   callbacks_.reset(new NoopCompilerCallbacks());
    198 
    199   RuntimeOptions options;
    200   options.push_back(std::make_pair("bootclasspath", &boot_class_path_));
    201   options.push_back(std::make_pair("-Xcheck:jni", nullptr));
    202   options.push_back(std::make_pair(min_heap_string.c_str(), nullptr));
    203   options.push_back(std::make_pair(max_heap_string.c_str(), nullptr));
    204   options.push_back(std::make_pair("compilercallbacks", callbacks_.get()));
    205   SetUpRuntimeOptions(&options);
    206   if (!Runtime::Create(options, false)) {
    207     LOG(FATAL) << "Failed to create runtime";
    208     return;
    209   }
    210   runtime_.reset(Runtime::Current());
    211   class_linker_ = runtime_->GetClassLinker();
    212   class_linker_->FixupDexCaches(runtime_->GetResolutionMethod());
    213   class_linker_->RunRootClinits();
    214 
    215   // Runtime::Create acquired the mutator_lock_ that is normally given away when we
    216   // Runtime::Start, give it away now and then switch to a more managable ScopedObjectAccess.
    217   Thread::Current()->TransitionFromRunnableToSuspended(kNative);
    218 
    219   // We're back in native, take the opportunity to initialize well known classes.
    220   WellKnownClasses::Init(Thread::Current()->GetJniEnv());
    221 
    222   // Create the heap thread pool so that the GC runs in parallel for tests. Normally, the thread
    223   // pool is created by the runtime.
    224   runtime_->GetHeap()->CreateThreadPool();
    225   runtime_->GetHeap()->VerifyHeap();  // Check for heap corruption before the test
    226 }
    227 
    228 void CommonRuntimeTest::ClearDirectory(const char* dirpath) {
    229   ASSERT_TRUE(dirpath != nullptr);
    230   DIR* dir = opendir(dirpath);
    231   ASSERT_TRUE(dir != nullptr);
    232   dirent* e;
    233   struct stat s;
    234   while ((e = readdir(dir)) != nullptr) {
    235     if ((strcmp(e->d_name, ".") == 0) || (strcmp(e->d_name, "..") == 0)) {
    236       continue;
    237     }
    238     std::string filename(dirpath);
    239     filename.push_back('/');
    240     filename.append(e->d_name);
    241     int stat_result = lstat(filename.c_str(), &s);
    242     ASSERT_EQ(0, stat_result) << "unable to stat " << filename;
    243     if (S_ISDIR(s.st_mode)) {
    244       ClearDirectory(filename.c_str());
    245       int rmdir_result = rmdir(filename.c_str());
    246       ASSERT_EQ(0, rmdir_result) << filename;
    247     } else {
    248       int unlink_result = unlink(filename.c_str());
    249       ASSERT_EQ(0, unlink_result) << filename;
    250     }
    251   }
    252   closedir(dir);
    253 }
    254 
    255 void CommonRuntimeTest::TearDown() {
    256   const char* android_data = getenv("ANDROID_DATA");
    257   ASSERT_TRUE(android_data != nullptr);
    258   ClearDirectory(dalvik_cache_.c_str());
    259   int rmdir_cache_result = rmdir(dalvik_cache_.c_str());
    260   ASSERT_EQ(0, rmdir_cache_result);
    261   TearDownAndroidData(android_data_, true);
    262 
    263   // icu4c has a fixed 10-element array "gCommonICUDataArray".
    264   // If we run > 10 tests, we fill that array and u_setCommonData fails.
    265   // There's a function to clear the array, but it's not public...
    266   typedef void (*IcuCleanupFn)();
    267   void* sym = dlsym(RTLD_DEFAULT, "u_cleanup_" U_ICU_VERSION_SHORT);
    268   CHECK(sym != nullptr) << dlerror();
    269   IcuCleanupFn icu_cleanup_fn = reinterpret_cast<IcuCleanupFn>(sym);
    270   (*icu_cleanup_fn)();
    271 
    272   STLDeleteElements(&opened_dex_files_);
    273 
    274   Runtime::Current()->GetHeap()->VerifyHeap();  // Check for heap corruption after the test
    275 }
    276 
    277 std::string CommonRuntimeTest::GetLibCoreDexFileName() {
    278   return GetDexFileName("core-libart");
    279 }
    280 
    281 std::string CommonRuntimeTest::GetDexFileName(const std::string& jar_prefix) {
    282   if (IsHost()) {
    283     const char* host_dir = getenv("ANDROID_HOST_OUT");
    284     CHECK(host_dir != nullptr);
    285     return StringPrintf("%s/framework/%s-hostdex.jar", host_dir, jar_prefix.c_str());
    286   }
    287   return StringPrintf("%s/framework/%s.jar", GetAndroidRoot(), jar_prefix.c_str());
    288 }
    289 
    290 std::string CommonRuntimeTest::GetTestAndroidRoot() {
    291   if (IsHost()) {
    292     const char* host_dir = getenv("ANDROID_HOST_OUT");
    293     CHECK(host_dir != nullptr);
    294     return host_dir;
    295   }
    296   return GetAndroidRoot();
    297 }
    298 
    299 // Check that for target builds we have ART_TARGET_NATIVETEST_DIR set.
    300 #ifdef ART_TARGET
    301 #ifndef ART_TARGET_NATIVETEST_DIR
    302 #error "ART_TARGET_NATIVETEST_DIR not set."
    303 #endif
    304 // Wrap it as a string literal.
    305 #define ART_TARGET_NATIVETEST_DIR_STRING STRINGIFY(ART_TARGET_NATIVETEST_DIR) "/"
    306 #else
    307 #define ART_TARGET_NATIVETEST_DIR_STRING ""
    308 #endif
    309 
    310 std::vector<const DexFile*> CommonRuntimeTest::OpenTestDexFiles(const char* name) {
    311   CHECK(name != nullptr);
    312   std::string filename;
    313   if (IsHost()) {
    314     filename += getenv("ANDROID_HOST_OUT");
    315     filename += "/framework/";
    316   } else {
    317     filename += ART_TARGET_NATIVETEST_DIR_STRING;
    318   }
    319   filename += "art-gtest-";
    320   filename += name;
    321   filename += ".jar";
    322   std::string error_msg;
    323   std::vector<const DexFile*> dex_files;
    324   bool success = DexFile::Open(filename.c_str(), filename.c_str(), &error_msg, &dex_files);
    325   CHECK(success) << "Failed to open '" << filename << "': " << error_msg;
    326   for (const DexFile* dex_file : dex_files) {
    327     CHECK_EQ(PROT_READ, dex_file->GetPermissions());
    328     CHECK(dex_file->IsReadOnly());
    329   }
    330   opened_dex_files_.insert(opened_dex_files_.end(), dex_files.begin(), dex_files.end());
    331   return dex_files;
    332 }
    333 
    334 const DexFile* CommonRuntimeTest::OpenTestDexFile(const char* name) {
    335   std::vector<const DexFile*> vector = OpenTestDexFiles(name);
    336   EXPECT_EQ(1U, vector.size());
    337   return vector[0];
    338 }
    339 
    340 jobject CommonRuntimeTest::LoadDex(const char* dex_name) {
    341   std::vector<const DexFile*> dex_files = OpenTestDexFiles(dex_name);
    342   CHECK_NE(0U, dex_files.size());
    343   for (const DexFile* dex_file : dex_files) {
    344     class_linker_->RegisterDexFile(*dex_file);
    345   }
    346   ScopedObjectAccessUnchecked soa(Thread::Current());
    347   ScopedLocalRef<jobject> class_loader_local(soa.Env(),
    348       soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader));
    349   jobject class_loader = soa.Env()->NewGlobalRef(class_loader_local.get());
    350   soa.Self()->SetClassLoaderOverride(soa.Decode<mirror::ClassLoader*>(class_loader_local.get()));
    351   Runtime::Current()->SetCompileTimeClassPath(class_loader, dex_files);
    352   return class_loader;
    353 }
    354 
    355 CheckJniAbortCatcher::CheckJniAbortCatcher() : vm_(Runtime::Current()->GetJavaVM()) {
    356   vm_->check_jni_abort_hook = Hook;
    357   vm_->check_jni_abort_hook_data = &actual_;
    358 }
    359 
    360 CheckJniAbortCatcher::~CheckJniAbortCatcher() {
    361   vm_->check_jni_abort_hook = nullptr;
    362   vm_->check_jni_abort_hook_data = nullptr;
    363   EXPECT_TRUE(actual_.empty()) << actual_;
    364 }
    365 
    366 void CheckJniAbortCatcher::Check(const char* expected_text) {
    367   EXPECT_TRUE(actual_.find(expected_text) != std::string::npos) << "\n"
    368       << "Expected to find: " << expected_text << "\n"
    369       << "In the output   : " << actual_;
    370   actual_.clear();
    371 }
    372 
    373 void CheckJniAbortCatcher::Hook(void* data, const std::string& reason) {
    374   // We use += because when we're hooking the aborts like this, multiple problems can be found.
    375   *reinterpret_cast<std::string*>(data) += reason;
    376 }
    377 
    378 }  // namespace art
    379 
    380 namespace std {
    381 
    382 template <typename T>
    383 std::ostream& operator<<(std::ostream& os, const std::vector<T>& rhs) {
    384 os << ::art::ToString(rhs);
    385 return os;
    386 }
    387 
    388 }  // namespace std
    389