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-rw-r--r--runtime/runtime.cc251
1 files changed, 161 insertions, 90 deletions
diff --git a/runtime/runtime.cc b/runtime/runtime.cc
index 02747d0d4d..c4694ee291 100644
--- a/runtime/runtime.cc
+++ b/runtime/runtime.cc
@@ -190,7 +190,6 @@ Runtime::Runtime()
abort_(nullptr),
stats_enabled_(false),
is_running_on_memory_tool_(RUNNING_ON_MEMORY_TOOL),
- profiler_started_(false),
instrumentation_(),
main_thread_group_(nullptr),
system_thread_group_(nullptr),
@@ -212,9 +211,11 @@ Runtime::Runtime()
safe_mode_(false) {
CheckAsmSupportOffsetsAndSizes();
std::fill(callee_save_methods_, callee_save_methods_ + arraysize(callee_save_methods_), 0u);
+ interpreter::CheckInterpreterAsmConstants();
}
Runtime::~Runtime() {
+ ATRACE_BEGIN("Runtime shutdown");
if (is_native_bridge_loaded_) {
UnloadNativeBridge();
}
@@ -229,48 +230,55 @@ Runtime::~Runtime() {
Thread* self = Thread::Current();
const bool attach_shutdown_thread = self == nullptr;
if (attach_shutdown_thread) {
+ ATRACE_BEGIN("Attach shutdown thread");
CHECK(AttachCurrentThread("Shutdown thread", false, nullptr, false));
+ ATRACE_END();
self = Thread::Current();
} else {
LOG(WARNING) << "Current thread not detached in Runtime shutdown";
}
{
+ ATRACE_BEGIN("Wait for shutdown cond");
MutexLock mu(self, *Locks::runtime_shutdown_lock_);
shutting_down_started_ = true;
while (threads_being_born_ > 0) {
shutdown_cond_->Wait(self);
}
shutting_down_ = true;
+ ATRACE_END();
}
// Shutdown and wait for the daemons.
CHECK(self != nullptr);
if (IsFinishedStarting()) {
+ ATRACE_BEGIN("Waiting for Daemons");
self->ClearException();
self->GetJniEnv()->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons,
WellKnownClasses::java_lang_Daemons_stop);
+ ATRACE_END();
}
Trace::Shutdown();
if (attach_shutdown_thread) {
+ ATRACE_BEGIN("Detach shutdown thread");
DetachCurrentThread();
+ ATRACE_END();
self = nullptr;
}
- // Shut down background profiler before the runtime exits.
- if (profiler_started_) {
- BackgroundMethodSamplingProfiler::Shutdown();
- }
-
// Make sure to let the GC complete if it is running.
heap_->WaitForGcToComplete(gc::kGcCauseBackground, self);
heap_->DeleteThreadPool();
- if (jit_.get() != nullptr) {
+ if (jit_ != nullptr) {
+ ATRACE_BEGIN("Delete jit");
VLOG(jit) << "Deleting jit thread pool";
// Delete thread pool before the thread list since we don't want to wait forever on the
// JIT compiler threads.
jit_->DeleteThreadPool();
+ // Similarly, stop the profile saver thread before deleting the thread list.
+ jit_->StopProfileSaver();
+ ATRACE_END();
}
// Make sure our internal threads are dead before we start tearing down things they're using.
@@ -278,11 +286,13 @@ Runtime::~Runtime() {
delete signal_catcher_;
// Make sure all other non-daemon threads have terminated, and all daemon threads are suspended.
+ ATRACE_BEGIN("Delete thread list");
delete thread_list_;
+ ATRACE_END();
// Delete the JIT after thread list to ensure that there is no remaining threads which could be
// accessing the instrumentation when we delete it.
- if (jit_.get() != nullptr) {
+ if (jit_ != nullptr) {
VLOG(jit) << "Deleting jit";
jit_.reset(nullptr);
}
@@ -290,6 +300,7 @@ Runtime::~Runtime() {
// Shutdown the fault manager if it was initialized.
fault_manager.Shutdown();
+ ATRACE_BEGIN("Delete state");
delete monitor_list_;
delete monitor_pool_;
delete class_linker_;
@@ -306,10 +317,12 @@ Runtime::~Runtime() {
low_4gb_arena_pool_.reset();
arena_pool_.reset();
MemMap::Shutdown();
+ ATRACE_END();
// TODO: acquire a static mutex on Runtime to avoid racing.
CHECK(instance_ == nullptr || instance_ == this);
instance_ = nullptr;
+ ATRACE_END();
}
struct AbortState {
@@ -547,15 +560,12 @@ bool Runtime::Start() {
// Use !IsAotCompiler so that we get test coverage, tests are never the zygote.
if (!IsAotCompiler()) {
ScopedObjectAccess soa(self);
- gc::space::ImageSpace* image_space = heap_->GetBootImageSpace();
- if (image_space != nullptr) {
- ATRACE_BEGIN("AddImageStringsToTable");
- GetInternTable()->AddImageStringsToTable(image_space);
- ATRACE_END();
- ATRACE_BEGIN("MoveImageClassesToClassTable");
- GetClassLinker()->AddBootImageClassesToClassTable();
- ATRACE_END();
- }
+ ATRACE_BEGIN("AddImageStringsToTable");
+ GetInternTable()->AddImagesStringsToTable(heap_->GetBootImageSpaces());
+ ATRACE_END();
+ ATRACE_BEGIN("MoveImageClassesToClassTable");
+ GetClassLinker()->AddBootImageClassesToClassTable();
+ ATRACE_END();
}
// If we are the zygote then we need to wait until after forking to create the code cache
@@ -564,7 +574,7 @@ bool Runtime::Start() {
CreateJit();
}
- if (!IsImageDex2OatEnabled() || !GetHeap()->HasImageSpace()) {
+ if (!IsImageDex2OatEnabled() || !GetHeap()->HasBootImageSpace()) {
ScopedObjectAccess soa(self);
StackHandleScope<1> hs(soa.Self());
auto klass(hs.NewHandle<mirror::Class>(mirror::Class::GetJavaLangClass()));
@@ -593,6 +603,7 @@ bool Runtime::Start() {
PreInitializeNativeBridge(".");
}
InitNonZygoteOrPostFork(self->GetJniEnv(),
+ /* is_system_server */ false,
NativeBridgeAction::kInitialize,
GetInstructionSetString(kRuntimeISA));
}
@@ -616,8 +627,7 @@ bool Runtime::Start() {
if (fd >= 0) {
close(fd);
} else if (errno != EEXIST) {
- LOG(INFO) << "Failed to access the profile file. Profiler disabled.";
- return true;
+ LOG(WARNING) << "Failed to access the profile file. Profiler disabled.";
}
}
@@ -682,7 +692,8 @@ bool Runtime::InitZygote() {
#endif
}
-void Runtime::InitNonZygoteOrPostFork(JNIEnv* env, NativeBridgeAction action, const char* isa) {
+void Runtime::InitNonZygoteOrPostFork(
+ JNIEnv* env, bool is_system_server, NativeBridgeAction action, const char* isa) {
is_zygote_ = false;
if (is_native_bridge_loaded_) {
@@ -704,7 +715,7 @@ void Runtime::InitNonZygoteOrPostFork(JNIEnv* env, NativeBridgeAction action, co
// before fork aren't attributed to an app.
heap_->ResetGcPerformanceInfo();
- if (!safe_mode_ && jit_options_->UseJIT() && jit_.get() == nullptr) {
+ if (!is_system_server && !safe_mode_ && jit_options_->UseJIT() && jit_.get() == nullptr) {
// Note that when running ART standalone (not zygote, nor zygote fork),
// the jit may have already been created.
CreateJit();
@@ -752,61 +763,92 @@ void Runtime::StartDaemonThreads() {
VLOG(startup) << "Runtime::StartDaemonThreads exiting";
}
+// Attempts to open dex files from image(s). Given the image location, try to find the oat file
+// and open it to get the stored dex file. If the image is the first for a multi-image boot
+// classpath, go on and also open the other images.
static bool OpenDexFilesFromImage(const std::string& image_location,
std::vector<std::unique_ptr<const DexFile>>* dex_files,
size_t* failures) {
DCHECK(dex_files != nullptr) << "OpenDexFilesFromImage: out-param is nullptr";
- std::string system_filename;
- bool has_system = false;
- std::string cache_filename_unused;
- bool dalvik_cache_exists_unused;
- bool has_cache_unused;
- bool is_global_cache_unused;
- bool found_image = gc::space::ImageSpace::FindImageFilename(image_location.c_str(),
- kRuntimeISA,
- &system_filename,
- &has_system,
- &cache_filename_unused,
- &dalvik_cache_exists_unused,
- &has_cache_unused,
- &is_global_cache_unused);
- *failures = 0;
- if (!found_image || !has_system) {
- return false;
- }
- std::string error_msg;
- // We are falling back to non-executable use of the oat file because patching failed, presumably
- // due to lack of space.
- std::string oat_filename = ImageHeader::GetOatLocationFromImageLocation(system_filename.c_str());
- std::string oat_location = ImageHeader::GetOatLocationFromImageLocation(image_location.c_str());
- std::unique_ptr<File> file(OS::OpenFileForReading(oat_filename.c_str()));
- if (file.get() == nullptr) {
- return false;
- }
- std::unique_ptr<ElfFile> elf_file(ElfFile::Open(file.release(), false, false, &error_msg));
- if (elf_file.get() == nullptr) {
- return false;
- }
- std::unique_ptr<const OatFile> oat_file(
- OatFile::OpenWithElfFile(elf_file.release(), oat_location, nullptr, &error_msg));
- if (oat_file == nullptr) {
- LOG(WARNING) << "Unable to use '" << oat_filename << "' because " << error_msg;
- return false;
- }
- for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) {
- if (oat_dex_file == nullptr) {
- *failures += 1;
- continue;
+ // Use a work-list approach, so that we can easily reuse the opening code.
+ std::vector<std::string> image_locations;
+ image_locations.push_back(image_location);
+
+ for (size_t index = 0; index < image_locations.size(); ++index) {
+ std::string system_filename;
+ bool has_system = false;
+ std::string cache_filename_unused;
+ bool dalvik_cache_exists_unused;
+ bool has_cache_unused;
+ bool is_global_cache_unused;
+ bool found_image = gc::space::ImageSpace::FindImageFilename(image_locations[index].c_str(),
+ kRuntimeISA,
+ &system_filename,
+ &has_system,
+ &cache_filename_unused,
+ &dalvik_cache_exists_unused,
+ &has_cache_unused,
+ &is_global_cache_unused);
+
+ if (!found_image || !has_system) {
+ return false;
}
- std::unique_ptr<const DexFile> dex_file = oat_dex_file->OpenDexFile(&error_msg);
- if (dex_file.get() == nullptr) {
- *failures += 1;
- } else {
- dex_files->push_back(std::move(dex_file));
+
+ // We are falling back to non-executable use of the oat file because patching failed, presumably
+ // due to lack of space.
+ std::string oat_filename =
+ ImageHeader::GetOatLocationFromImageLocation(system_filename.c_str());
+ std::string oat_location =
+ ImageHeader::GetOatLocationFromImageLocation(image_locations[index].c_str());
+ // Note: in the multi-image case, the image location may end in ".jar," and not ".art." Handle
+ // that here.
+ if (EndsWith(oat_location, ".jar")) {
+ oat_location.replace(oat_location.length() - 3, 3, "oat");
+ }
+
+ std::unique_ptr<File> file(OS::OpenFileForReading(oat_filename.c_str()));
+ if (file.get() == nullptr) {
+ return false;
+ }
+ std::string error_msg;
+ std::unique_ptr<ElfFile> elf_file(ElfFile::Open(file.release(), false, false, &error_msg));
+ if (elf_file.get() == nullptr) {
+ return false;
+ }
+ std::unique_ptr<const OatFile> oat_file(
+ OatFile::OpenWithElfFile(elf_file.release(), oat_location, nullptr, &error_msg));
+ if (oat_file == nullptr) {
+ LOG(WARNING) << "Unable to use '" << oat_filename << "' because " << error_msg;
+ return false;
+ }
+
+ for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) {
+ if (oat_dex_file == nullptr) {
+ *failures += 1;
+ continue;
+ }
+ std::unique_ptr<const DexFile> dex_file = oat_dex_file->OpenDexFile(&error_msg);
+ if (dex_file.get() == nullptr) {
+ *failures += 1;
+ } else {
+ dex_files->push_back(std::move(dex_file));
+ }
+ }
+
+ if (index == 0) {
+ // First file. See if this is a multi-image environment, and if so, enqueue the other images.
+ const OatHeader& boot_oat_header = oat_file->GetOatHeader();
+ const char* boot_cp = boot_oat_header.GetStoreValueByKey(OatHeader::kBootClassPath);
+ if (boot_cp != nullptr) {
+ gc::space::ImageSpace::CreateMultiImageLocations(image_locations[0],
+ boot_cp,
+ &image_locations);
+ }
}
+
+ Runtime::Current()->GetOatFileManager().RegisterOatFile(std::move(oat_file));
}
- Runtime::Current()->GetOatFileManager().RegisterOatFile(std::move(oat_file));
return true;
}
@@ -944,7 +986,7 @@ bool Runtime::Init(RuntimeArgumentMap&& runtime_options_in) {
runtime_options.GetOrDefault(Opt::HSpaceCompactForOOMMinIntervalsMs));
ATRACE_END();
- if (heap_->GetBootImageSpace() == nullptr && !allow_dex_file_fallback_) {
+ if (!heap_->HasBootImageSpace() && !allow_dex_file_fallback_) {
LOG(ERROR) << "Dex file fallback disabled, cannot continue without image.";
ATRACE_END();
return false;
@@ -1052,7 +1094,7 @@ bool Runtime::Init(RuntimeArgumentMap&& runtime_options_in) {
CHECK_GE(GetHeap()->GetContinuousSpaces().size(), 1U);
class_linker_ = new ClassLinker(intern_table_);
- if (GetHeap()->HasImageSpace()) {
+ if (GetHeap()->HasBootImageSpace()) {
ATRACE_BEGIN("InitFromImage");
std::string error_msg;
bool result = class_linker_->InitFromImage(&error_msg);
@@ -1062,7 +1104,9 @@ bool Runtime::Init(RuntimeArgumentMap&& runtime_options_in) {
return false;
}
if (kIsDebugBuild) {
- GetHeap()->GetBootImageSpace()->VerifyImageAllocations();
+ for (auto image_space : GetHeap()->GetBootImageSpaces()) {
+ image_space->VerifyImageAllocations();
+ }
}
if (boot_class_path_string_.empty()) {
// The bootclasspath is not explicitly specified: construct it from the loaded dex files.
@@ -1209,20 +1253,36 @@ void Runtime::InitNativeMethods() {
// First set up JniConstants, which is used by both the runtime's built-in native
// methods and libcore.
JniConstants::init(env);
- WellKnownClasses::Init(env);
// Then set up the native methods provided by the runtime itself.
RegisterRuntimeNativeMethods(env);
- // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad.
- // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's
- // the library that implements System.loadLibrary!
+ // Initialize classes used in JNI. The initialization requires runtime native
+ // methods to be loaded first.
+ WellKnownClasses::Init(env);
+
+ // Then set up libjavacore / libopenjdk, which are just a regular JNI libraries with
+ // a regular JNI_OnLoad. Most JNI libraries can just use System.loadLibrary, but
+ // libcore can't because it's the library that implements System.loadLibrary!
{
std::string error_msg;
- if (!java_vm_->LoadNativeLibrary(env, "libjavacore.so", nullptr, nullptr, nullptr, &error_msg)) {
+ if (!java_vm_->LoadNativeLibrary(env, "libjavacore.so", nullptr,
+ /* is_shared_namespace */ false,
+ nullptr, nullptr, &error_msg)) {
LOG(FATAL) << "LoadNativeLibrary failed for \"libjavacore.so\": " << error_msg;
}
}
+ {
+ constexpr const char* kOpenJdkLibrary = kIsDebugBuild
+ ? "libopenjdkd.so"
+ : "libopenjdk.so";
+ std::string error_msg;
+ if (!java_vm_->LoadNativeLibrary(env, kOpenJdkLibrary, nullptr,
+ /* is_shared_namespace */ false,
+ nullptr, nullptr, &error_msg)) {
+ LOG(FATAL) << "LoadNativeLibrary failed for \"" << kOpenJdkLibrary << "\": " << error_msg;
+ }
+ }
// Initialize well known classes that may invoke runtime native methods.
WellKnownClasses::LateInit(env);
@@ -1638,8 +1698,31 @@ void Runtime::SetCalleeSaveMethod(ArtMethod* method, CalleeSaveType type) {
callee_save_methods_[type] = reinterpret_cast<uintptr_t>(method);
}
-void Runtime::SetJitProfilingFilename(const char* profile_output_filename) {
+void Runtime::RegisterAppInfo(const std::vector<std::string>& code_paths,
+ const std::string& profile_output_filename) {
+ if (jit_.get() == nullptr) {
+ // We are not JITing. Nothing to do.
+ return;
+ }
+
+ VLOG(profiler) << "Register app with " << profile_output_filename
+ << " " << Join(code_paths, ':');
+
+ if (profile_output_filename.empty()) {
+ LOG(WARNING) << "JIT profile information will not be recorded: profile filename is empty.";
+ return;
+ }
+ if (!FileExists(profile_output_filename)) {
+ LOG(WARNING) << "JIT profile information will not be recorded: profile file does not exits.";
+ return;
+ }
+ if (code_paths.empty()) {
+ LOG(WARNING) << "JIT profile information will not be recorded: code paths is empty.";
+ return;
+ }
+
profile_output_filename_ = profile_output_filename;
+ jit_->StartProfileSaver(profile_output_filename, code_paths);
}
// Transaction support.
@@ -1785,18 +1868,6 @@ void Runtime::AddCurrentRuntimeFeaturesAsDex2OatArguments(std::vector<std::strin
argv->push_back(feature_string);
}
-void Runtime::MaybeSaveJitProfilingInfo() {
- if (jit_.get() != nullptr && !profile_output_filename_.empty()) {
- jit_->SaveProfilingInfo(profile_output_filename_);
- }
-}
-
-void Runtime::UpdateProfilerState(int state) {
- if (state == kProfileBackground) {
- MaybeSaveJitProfilingInfo();
- }
-}
-
void Runtime::CreateJit() {
CHECK(!IsAotCompiler());
if (GetInstrumentation()->IsForcedInterpretOnly()) {
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-10-20 17:01:41 +0000