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/*
* 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 "compiler_driver.h"
#define ATRACE_TAG ATRACE_TAG_DALVIK
#include <utils/Trace.h>
#include <vector>
#include <unistd.h>
#include "base/stl_util.h"
#include "base/timing_logger.h"
#include "class_linker.h"
#include "dex_compilation_unit.h"
#include "dex_file-inl.h"
#include "jni_internal.h"
#include "object_utils.h"
#include "runtime.h"
#include "gc/accounting/card_table-inl.h"
#include "gc/accounting/heap_bitmap.h"
#include "gc/space/space.h"
#include "mirror/art_field-inl.h"
#include "mirror/art_method-inl.h"
#include "mirror/class_loader.h"
#include "mirror/class-inl.h"
#include "mirror/dex_cache-inl.h"
#include "mirror/object-inl.h"
#include "mirror/object_array-inl.h"
#include "mirror/throwable.h"
#include "scoped_thread_state_change.h"
#include "ScopedLocalRef.h"
#include "thread.h"
#include "thread_pool.h"
#include "trampolines/trampoline_compiler.h"
#include "verifier/method_verifier.h"
#if defined(ART_USE_PORTABLE_COMPILER)
#include "elf_writer_mclinker.h"
#else
#include "elf_writer_quick.h"
#endif
namespace art {
static double Percentage(size_t x, size_t y) {
return 100.0 * (static_cast<double>(x)) / (static_cast<double>(x + y));
}
static void DumpStat(size_t x, size_t y, const char* str) {
if (x == 0 && y == 0) {
return;
}
VLOG(compiler) << Percentage(x, y) << "% of " << str << " for " << (x + y) << " cases";
}
class AOTCompilationStats {
public:
AOTCompilationStats()
: stats_lock_("AOT compilation statistics lock"),
types_in_dex_cache_(0), types_not_in_dex_cache_(0),
strings_in_dex_cache_(0), strings_not_in_dex_cache_(0),
resolved_types_(0), unresolved_types_(0),
resolved_instance_fields_(0), unresolved_instance_fields_(0),
resolved_local_static_fields_(0), resolved_static_fields_(0), unresolved_static_fields_(0),
type_based_devirtualization_(0),
safe_casts_(0), not_safe_casts_(0) {
for (size_t i = 0; i <= kMaxInvokeType; i++) {
resolved_methods_[i] = 0;
unresolved_methods_[i] = 0;
virtual_made_direct_[i] = 0;
direct_calls_to_boot_[i] = 0;
direct_methods_to_boot_[i] = 0;
}
}
void Dump() {
DumpStat(types_in_dex_cache_, types_not_in_dex_cache_, "types known to be in dex cache");
DumpStat(strings_in_dex_cache_, strings_not_in_dex_cache_, "strings known to be in dex cache");
DumpStat(resolved_types_, unresolved_types_, "types resolved");
DumpStat(resolved_instance_fields_, unresolved_instance_fields_, "instance fields resolved");
DumpStat(resolved_local_static_fields_ + resolved_static_fields_, unresolved_static_fields_,
"static fields resolved");
DumpStat(resolved_local_static_fields_, resolved_static_fields_ + unresolved_static_fields_,
"static fields local to a class");
DumpStat(safe_casts_, not_safe_casts_, "check-casts removed based on type information");
// Note, the code below subtracts the stat value so that when added to the stat value we have
// 100% of samples. TODO: clean this up.
DumpStat(type_based_devirtualization_,
resolved_methods_[kVirtual] + unresolved_methods_[kVirtual] +
resolved_methods_[kInterface] + unresolved_methods_[kInterface] -
type_based_devirtualization_,
"virtual/interface calls made direct based on type information");
for (size_t i = 0; i <= kMaxInvokeType; i++) {
std::ostringstream oss;
oss << static_cast<InvokeType>(i) << " methods were AOT resolved";
DumpStat(resolved_methods_[i], unresolved_methods_[i], oss.str().c_str());
if (virtual_made_direct_[i] > 0) {
std::ostringstream oss2;
oss2 << static_cast<InvokeType>(i) << " methods made direct";
DumpStat(virtual_made_direct_[i],
resolved_methods_[i] + unresolved_methods_[i] - virtual_made_direct_[i],
oss2.str().c_str());
}
if (direct_calls_to_boot_[i] > 0) {
std::ostringstream oss2;
oss2 << static_cast<InvokeType>(i) << " method calls are direct into boot";
DumpStat(direct_calls_to_boot_[i],
resolved_methods_[i] + unresolved_methods_[i] - direct_calls_to_boot_[i],
oss2.str().c_str());
}
if (direct_methods_to_boot_[i] > 0) {
std::ostringstream oss2;
oss2 << static_cast<InvokeType>(i) << " method calls have methods in boot";
DumpStat(direct_methods_to_boot_[i],
resolved_methods_[i] + unresolved_methods_[i] - direct_methods_to_boot_[i],
oss2.str().c_str());
}
}
}
// Allow lossy statistics in non-debug builds.
#ifndef NDEBUG
#define STATS_LOCK() MutexLock mu(Thread::Current(), stats_lock_)
#else
#define STATS_LOCK()
#endif
void TypeInDexCache() {
STATS_LOCK();
types_in_dex_cache_++;
}
void TypeNotInDexCache() {
STATS_LOCK();
types_not_in_dex_cache_++;
}
void StringInDexCache() {
STATS_LOCK();
strings_in_dex_cache_++;
}
void StringNotInDexCache() {
STATS_LOCK();
strings_not_in_dex_cache_++;
}
void TypeDoesntNeedAccessCheck() {
STATS_LOCK();
resolved_types_++;
}
void TypeNeedsAccessCheck() {
STATS_LOCK();
unresolved_types_++;
}
void ResolvedInstanceField() {
STATS_LOCK();
resolved_instance_fields_++;
}
void UnresolvedInstanceField() {
STATS_LOCK();
unresolved_instance_fields_++;
}
void ResolvedLocalStaticField() {
STATS_LOCK();
resolved_local_static_fields_++;
}
void ResolvedStaticField() {
STATS_LOCK();
resolved_static_fields_++;
}
void UnresolvedStaticField() {
STATS_LOCK();
unresolved_static_fields_++;
}
// Indicate that type information from the verifier led to devirtualization.
void PreciseTypeDevirtualization() {
STATS_LOCK();
type_based_devirtualization_++;
}
// Indicate that a method of the given type was resolved at compile time.
void ResolvedMethod(InvokeType type) {
DCHECK_LE(type, kMaxInvokeType);
STATS_LOCK();
resolved_methods_[type]++;
}
// Indicate that a method of the given type was unresolved at compile time as it was in an
// unknown dex file.
void UnresolvedMethod(InvokeType type) {
DCHECK_LE(type, kMaxInvokeType);
STATS_LOCK();
unresolved_methods_[type]++;
}
// Indicate that a type of virtual method dispatch has been converted into a direct method
// dispatch.
void VirtualMadeDirect(InvokeType type) {
DCHECK(type == kVirtual || type == kInterface || type == kSuper);
STATS_LOCK();
virtual_made_direct_[type]++;
}
// Indicate that a method of the given type was able to call directly into boot.
void DirectCallsToBoot(InvokeType type) {
DCHECK_LE(type, kMaxInvokeType);
STATS_LOCK();
direct_calls_to_boot_[type]++;
}
// Indicate that a method of the given type was able to be resolved directly from boot.
void DirectMethodsToBoot(InvokeType type) {
DCHECK_LE(type, kMaxInvokeType);
STATS_LOCK();
direct_methods_to_boot_[type]++;
}
// A check-cast could be eliminated due to verifier type analysis.
void SafeCast() {
STATS_LOCK();
safe_casts_++;
}
// A check-cast couldn't be eliminated due to verifier type analysis.
void NotASafeCast() {
STATS_LOCK();
not_safe_casts_++;
}
private:
Mutex stats_lock_;
size_t types_in_dex_cache_;
size_t types_not_in_dex_cache_;
size_t strings_in_dex_cache_;
size_t strings_not_in_dex_cache_;
size_t resolved_types_;
size_t unresolved_types_;
size_t resolved_instance_fields_;
size_t unresolved_instance_fields_;
size_t resolved_local_static_fields_;
size_t resolved_static_fields_;
size_t unresolved_static_fields_;
// Type based devirtualization for invoke interface and virtual.
size_t type_based_devirtualization_;
size_t resolved_methods_[kMaxInvokeType + 1];
size_t unresolved_methods_[kMaxInvokeType + 1];
size_t virtual_made_direct_[kMaxInvokeType + 1];
size_t direct_calls_to_boot_[kMaxInvokeType + 1];
size_t direct_methods_to_boot_[kMaxInvokeType + 1];
size_t safe_casts_;
size_t not_safe_casts_;
DISALLOW_COPY_AND_ASSIGN(AOTCompilationStats);
};
extern "C" void ArtInitCompilerContext(art::CompilerDriver& driver);
extern "C" void ArtInitQuickCompilerContext(art::CompilerDriver& compiler);
extern "C" void ArtUnInitCompilerContext(art::CompilerDriver& driver);
extern "C" void ArtUnInitQuickCompilerContext(art::CompilerDriver& compiler);
extern "C" art::CompiledMethod* ArtCompileMethod(art::CompilerDriver& driver,
const art::DexFile::CodeItem* code_item,
uint32_t access_flags,
art::InvokeType invoke_type,
uint32_t class_def_idx,
uint32_t method_idx,
jobject class_loader,
const art::DexFile& dex_file);
extern "C" art::CompiledMethod* ArtQuickCompileMethod(art::CompilerDriver& compiler,
const art::DexFile::CodeItem* code_item,
uint32_t access_flags,
art::InvokeType invoke_type,
uint32_t class_def_idx,
uint32_t method_idx,
jobject class_loader,
const art::DexFile& dex_file);
extern "C" art::CompiledMethod* ArtCompileDEX(art::CompilerDriver& compiler,
const art::DexFile::CodeItem* code_item,
uint32_t access_flags,
art::InvokeType invoke_type,
uint32_t class_def_idx,
uint32_t method_idx,
jobject class_loader,
const art::DexFile& dex_file);
#ifdef ART_SEA_IR_MODE
extern "C" art::CompiledMethod* SeaIrCompileMethod(art::CompilerDriver& compiler,
const art::DexFile::CodeItem* code_item,
uint32_t access_flags,
art::InvokeType invoke_type,
uint32_t class_def_idx,
uint32_t method_idx,
jobject class_loader,
const art::DexFile& dex_file);
#endif
extern "C" art::CompiledMethod* ArtLLVMJniCompileMethod(art::CompilerDriver& driver,
uint32_t access_flags, uint32_t method_idx,
const art::DexFile& dex_file);
extern "C" art::CompiledMethod* ArtQuickJniCompileMethod(art::CompilerDriver& compiler,
uint32_t access_flags, uint32_t method_idx,
const art::DexFile& dex_file);
extern "C" void compilerLLVMSetBitcodeFileName(art::CompilerDriver& driver,
std::string const& filename);
CompilerDriver::CompilerDriver(CompilerBackend compiler_backend, InstructionSet instruction_set,
bool image, DescriptorSet* image_classes, size_t thread_count,
bool dump_stats)
: compiler_backend_(compiler_backend),
instruction_set_(instruction_set),
freezing_constructor_lock_("freezing constructor lock"),
compiled_classes_lock_("compiled classes lock"),
compiled_methods_lock_("compiled method lock"),
image_(image),
image_classes_(image_classes),
thread_count_(thread_count),
start_ns_(0),
stats_(new AOTCompilationStats),
dump_stats_(dump_stats),
compiler_library_(NULL),
compiler_(NULL),
compiler_context_(NULL),
jni_compiler_(NULL),
compiler_enable_auto_elf_loading_(NULL),
compiler_get_method_code_addr_(NULL),
support_boot_image_fixup_(true) {
CHECK_PTHREAD_CALL(pthread_key_create, (&tls_key_, NULL), "compiler tls key");
// TODO: more work needed to combine initializations and allow per-method backend selection
typedef void (*InitCompilerContextFn)(CompilerDriver&);
InitCompilerContextFn init_compiler_context;
if (compiler_backend_ == kPortable) {
// Initialize compiler_context_
init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitCompilerContext);
compiler_ = reinterpret_cast<CompilerFn>(ArtCompileMethod);
} else {
init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitQuickCompilerContext);
compiler_ = reinterpret_cast<CompilerFn>(ArtQuickCompileMethod);
}
dex_to_dex_compiler_ = reinterpret_cast<DexToDexCompilerFn>(ArtCompileDEX);
#ifdef ART_SEA_IR_MODE
sea_ir_compiler_ = NULL;
if (Runtime::Current()->IsSeaIRMode()) {
sea_ir_compiler_ = reinterpret_cast<CompilerFn>(SeaIrCompileMethod);
}
#endif
init_compiler_context(*this);
if (compiler_backend_ == kPortable) {
jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtLLVMJniCompileMethod);
} else {
jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtQuickJniCompileMethod);
}
CHECK(!Runtime::Current()->IsStarted());
if (!image_) {
CHECK(image_classes_.get() == NULL);
}
}
std::vector<uint8_t>* CompilerDriver::DeduplicateCode(const std::vector<uint8_t>& code) {
return dedupe_code_.Add(Thread::Current(), code);
}
std::vector<uint8_t>* CompilerDriver::DeduplicateMappingTable(const std::vector<uint8_t>& code) {
return dedupe_mapping_table_.Add(Thread::Current(), code);
}
std::vector<uint8_t>* CompilerDriver::DeduplicateVMapTable(const std::vector<uint8_t>& code) {
return dedupe_vmap_table_.Add(Thread::Current(), code);
}
std::vector<uint8_t>* CompilerDriver::DeduplicateGCMap(const std::vector<uint8_t>& code) {
return dedupe_gc_map_.Add(Thread::Current(), code);
}
CompilerDriver::~CompilerDriver() {
Thread* self = Thread::Current();
{
MutexLock mu(self, compiled_classes_lock_);
STLDeleteValues(&compiled_classes_);
}
{
MutexLock mu(self, compiled_methods_lock_);
STLDeleteValues(&compiled_methods_);
}
{
MutexLock mu(self, compiled_methods_lock_);
STLDeleteElements(&code_to_patch_);
}
{
MutexLock mu(self, compiled_methods_lock_);
STLDeleteElements(&methods_to_patch_);
}
CHECK_PTHREAD_CALL(pthread_key_delete, (tls_key_), "delete tls key");
typedef void (*UninitCompilerContextFn)(CompilerDriver&);
UninitCompilerContextFn uninit_compiler_context;
// Uninitialize compiler_context_
// TODO: rework to combine initialization/uninitialization
if (compiler_backend_ == kPortable) {
uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitCompilerContext);
} else {
uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitQuickCompilerContext);
}
uninit_compiler_context(*this);
}
CompilerTls* CompilerDriver::GetTls() {
// Lazily create thread-local storage
CompilerTls* res = static_cast<CompilerTls*>(pthread_getspecific(tls_key_));
if (res == NULL) {
res = new CompilerTls();
CHECK_PTHREAD_CALL(pthread_setspecific, (tls_key_, res), "compiler tls");
}
return res;
}
const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToInterpreterBridge() const {
return CreateTrampoline(instruction_set_, kInterpreterAbi,
INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToInterpreterBridge));
}
const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToCompiledCodeBridge() const {
return CreateTrampoline(instruction_set_, kInterpreterAbi,
INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToCompiledCodeBridge));
}
const std::vector<uint8_t>* CompilerDriver::CreateJniDlsymLookup() const {
return CreateTrampoline(instruction_set_, kJniAbi, JNI_ENTRYPOINT_OFFSET(pDlsymLookup));
}
const std::vector<uint8_t>* CompilerDriver::CreatePortableResolutionTrampoline() const {
return CreateTrampoline(instruction_set_, kPortableAbi,
PORTABLE_ENTRYPOINT_OFFSET(pPortableResolutionTrampoline));
}
const std::vector<uint8_t>* CompilerDriver::CreatePortableToInterpreterBridge() const {
return CreateTrampoline(instruction_set_, kPortableAbi,
PORTABLE_ENTRYPOINT_OFFSET(pPortableToInterpreterBridge));
}
const std::vector<uint8_t>* CompilerDriver::CreateQuickResolutionTrampoline() const {
return CreateTrampoline(instruction_set_, kQuickAbi,
QUICK_ENTRYPOINT_OFFSET(pQuickResolutionTrampoline));
}
const std::vector<uint8_t>* CompilerDriver::CreateQuickToInterpreterBridge() const {
return CreateTrampoline(instruction_set_, kQuickAbi,
QUICK_ENTRYPOINT_OFFSET(pQuickToInterpreterBridge));
}
void CompilerDriver::CompileAll(jobject class_loader,
const std::vector<const DexFile*>& dex_files,
base::TimingLogger& timings) {
DCHECK(!Runtime::Current()->IsStarted());
UniquePtr<ThreadPool> thread_pool(new ThreadPool(thread_count_ - 1));
PreCompile(class_loader, dex_files, *thread_pool.get(), timings);
Compile(class_loader, dex_files, *thread_pool.get(), timings);
if (dump_stats_) {
stats_->Dump();
}
}
static DexToDexCompilationLevel GetDexToDexCompilationlevel(mirror::ClassLoader* class_loader,
const DexFile& dex_file,
const DexFile::ClassDef& class_def)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
const char* descriptor = dex_file.GetClassDescriptor(class_def);
ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
mirror::Class* klass = class_linker->FindClass(descriptor, class_loader);
if (klass == NULL) {
Thread* self = Thread::Current();
CHECK(self->IsExceptionPending());
self->ClearException();
return kDontDexToDexCompile;
}
// The verifier can only run on "quick" instructions at runtime (see usage of
// FindAccessedFieldAtDexPc and FindInvokedMethodAtDexPc in ThrowNullPointerExceptionFromDexPC
// function). Since image classes can be verified again while compiling an application,
// we must prevent the DEX-to-DEX compiler from introducing them.
// TODO: find a way to enable "quick" instructions for image classes and remove this check.
bool compiling_image_classes = (class_loader == NULL);
if (compiling_image_classes) {
return kRequired;
} else if (klass->IsVerified()) {
// Class is verified so we can enable DEX-to-DEX compilation for performance.
return kOptimize;
} else if (klass->IsCompileTimeVerified()) {
// Class verification has soft-failed. Anyway, ensure at least correctness.
DCHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime);
return kRequired;
} else {
// Class verification has failed: do not run DEX-to-DEX compilation.
return kDontDexToDexCompile;
}
}
void CompilerDriver::CompileOne(const mirror::ArtMethod* method, base::TimingLogger& timings) {
DCHECK(!Runtime::Current()->IsStarted());
Thread* self = Thread::Current();
jobject jclass_loader;
const DexFile* dex_file;
uint32_t class_def_idx;
{
ScopedObjectAccessUnchecked soa(self);
ScopedLocalRef<jobject>
local_class_loader(soa.Env(),
soa.AddLocalReference<jobject>(method->GetDeclaringClass()->GetClassLoader()));
jclass_loader = soa.Env()->NewGlobalRef(local_class_loader.get());
// Find the dex_file
MethodHelper mh(method);
dex_file = &mh.GetDexFile();
class_def_idx = mh.GetClassDefIndex();
}
self->TransitionFromRunnableToSuspended(kNative);
std::vector<const DexFile*> dex_files;
dex_files.push_back(dex_file);
UniquePtr<ThreadPool> thread_pool(new ThreadPool(0U));
PreCompile(jclass_loader, dex_files, *thread_pool.get(), timings);
uint32_t method_idx = method->GetDexMethodIndex();
const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset());
// Can we run DEX-to-DEX compiler on this class ?
DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile;
{
ScopedObjectAccess soa(Thread::Current());
const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_idx);
mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(jclass_loader);
dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, *dex_file, class_def);
}
CompileMethod(code_item, method->GetAccessFlags(), method->GetInvokeType(),
class_def_idx, method_idx, jclass_loader, *dex_file, dex_to_dex_compilation_level);
self->GetJniEnv()->DeleteGlobalRef(jclass_loader);
self->TransitionFromSuspendedToRunnable();
}
void CompilerDriver::Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files,
ThreadPool& thread_pool, base::TimingLogger& timings) {
for (size_t i = 0; i != dex_files.size(); ++i) {
const DexFile* dex_file = dex_files[i];
CHECK(dex_file != NULL);
ResolveDexFile(class_loader, *dex_file, thread_pool, timings);
}
}
void CompilerDriver::PreCompile(jobject class_loader, const std::vector<const DexFile*>& dex_files,
ThreadPool& thread_pool, base::TimingLogger& timings) {
LoadImageClasses(timings);
Resolve(class_loader, dex_files, thread_pool, timings);
Verify(class_loader, dex_files, thread_pool, timings);
InitializeClasses(class_loader, dex_files, thread_pool, timings);
UpdateImageClasses(timings);
}
bool CompilerDriver::IsImageClass(const char* descriptor) const {
DCHECK(descriptor != NULL);
if (!IsImage()) {
return true;
} else {
return image_classes_->find(descriptor) != image_classes_->end();
}
}
static void ResolveExceptionsForMethod(MethodHelper* mh,
std::set<std::pair<uint16_t, const DexFile*> >& exceptions_to_resolve)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
const DexFile::CodeItem* code_item = mh->GetCodeItem();
if (code_item == NULL) {
return; // native or abstract method
}
if (code_item->tries_size_ == 0) {
return; // nothing to process
}
const byte* encoded_catch_handler_list = DexFile::GetCatchHandlerData(*code_item, 0);
size_t num_encoded_catch_handlers = DecodeUnsignedLeb128(&encoded_catch_handler_list);
for (size_t i = 0; i < num_encoded_catch_handlers; i++) {
int32_t encoded_catch_handler_size = DecodeSignedLeb128(&encoded_catch_handler_list);
bool has_catch_all = false;
if (encoded_catch_handler_size <= 0) {
encoded_catch_handler_size = -encoded_catch_handler_size;
has_catch_all = true;
}
for (int32_t j = 0; j < encoded_catch_handler_size; j++) {
uint16_t encoded_catch_handler_handlers_type_idx =
DecodeUnsignedLeb128(&encoded_catch_handler_list);
// Add to set of types to resolve if not already in the dex cache resolved types
if (!mh->IsResolvedTypeIdx(encoded_catch_handler_handlers_type_idx)) {
exceptions_to_resolve.insert(
std::pair<uint16_t, const DexFile*>(encoded_catch_handler_handlers_type_idx,
&mh->GetDexFile()));
}
// ignore address associated with catch handler
DecodeUnsignedLeb128(&encoded_catch_handler_list);
}
if (has_catch_all) {
// ignore catch all address
DecodeUnsignedLeb128(&encoded_catch_handler_list);
}
}
}
static bool ResolveCatchBlockExceptionsClassVisitor(mirror::Class* c, void* arg)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
std::set<std::pair<uint16_t, const DexFile*> >* exceptions_to_resolve =
reinterpret_cast<std::set<std::pair<uint16_t, const DexFile*> >*>(arg);
MethodHelper mh;
for (size_t i = 0; i < c->NumVirtualMethods(); ++i) {
mirror::ArtMethod* m = c->GetVirtualMethod(i);
mh.ChangeMethod(m);
ResolveExceptionsForMethod(&mh, *exceptions_to_resolve);
}
for (size_t i = 0; i < c->NumDirectMethods(); ++i) {
mirror::ArtMethod* m = c->GetDirectMethod(i);
mh.ChangeMethod(m);
ResolveExceptionsForMethod(&mh, *exceptions_to_resolve);
}
return true;
}
static bool RecordImageClassesVisitor(mirror::Class* klass, void* arg)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
CompilerDriver::DescriptorSet* image_classes =
reinterpret_cast<CompilerDriver::DescriptorSet*>(arg);
image_classes->insert(ClassHelper(klass).GetDescriptor());
return true;
}
// Make a list of descriptors for classes to include in the image
void CompilerDriver::LoadImageClasses(base::TimingLogger& timings)
LOCKS_EXCLUDED(Locks::mutator_lock_) {
if (!IsImage()) {
return;
}
timings.NewSplit("LoadImageClasses");
// Make a first class to load all classes explicitly listed in the file
Thread* self = Thread::Current();
ScopedObjectAccess soa(self);
ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
for (auto it = image_classes_->begin(), end = image_classes_->end(); it != end;) {
std::string descriptor(*it);
SirtRef<mirror::Class> klass(self, class_linker->FindSystemClass(descriptor.c_str()));
if (klass.get() == NULL) {
image_classes_->erase(it++);
VLOG(compiler) << "Failed to find class " << descriptor;
self->ClearException();
} else {
++it;
}
}
// Resolve exception classes referenced by the loaded classes. The catch logic assumes
// exceptions are resolved by the verifier when there is a catch block in an interested method.
// Do this here so that exception classes appear to have been specified image classes.
std::set<std::pair<uint16_t, const DexFile*> > unresolved_exception_types;
SirtRef<mirror::Class> java_lang_Throwable(self,
class_linker->FindSystemClass("Ljava/lang/Throwable;"));
do {
unresolved_exception_types.clear();
class_linker->VisitClasses(ResolveCatchBlockExceptionsClassVisitor,
&unresolved_exception_types);
for (const std::pair<uint16_t, const DexFile*>& exception_type : unresolved_exception_types) {
uint16_t exception_type_idx = exception_type.first;
const DexFile* dex_file = exception_type.second;
mirror::DexCache* dex_cache = class_linker->FindDexCache(*dex_file);
mirror:: ClassLoader* class_loader = NULL;
SirtRef<mirror::Class> klass(self, class_linker->ResolveType(*dex_file, exception_type_idx,
dex_cache, class_loader));
if (klass.get() == NULL) {
const DexFile::TypeId& type_id = dex_file->GetTypeId(exception_type_idx);
const char* descriptor = dex_file->GetTypeDescriptor(type_id);
LOG(FATAL) << "Failed to resolve class " << descriptor;
}
DCHECK(java_lang_Throwable->IsAssignableFrom(klass.get()));
}
// Resolving exceptions may load classes that reference more exceptions, iterate until no
// more are found
} while (!unresolved_exception_types.empty());
// We walk the roots looking for classes so that we'll pick up the
// above classes plus any classes them depend on such super
// classes, interfaces, and the required ClassLinker roots.
class_linker->VisitClasses(RecordImageClassesVisitor, image_classes_.get());
CHECK_NE(image_classes_->size(), 0U);
}
static void MaybeAddToImageClasses(mirror::Class* klass, CompilerDriver::DescriptorSet* image_classes)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
while (!klass->IsObjectClass()) {
ClassHelper kh(klass);
const char* descriptor = kh.GetDescriptor();
std::pair<CompilerDriver::DescriptorSet::iterator, bool> result =
image_classes->insert(descriptor);
if (result.second) {
VLOG(compiler) << "Adding " << descriptor << " to image classes";
} else {
return;
}
for (size_t i = 0; i < kh.NumDirectInterfaces(); ++i) {
MaybeAddToImageClasses(kh.GetDirectInterface(i), image_classes);
}
if (klass->IsArrayClass()) {
MaybeAddToImageClasses(klass->GetComponentType(), image_classes);
}
klass = klass->GetSuperClass();
}
}
void CompilerDriver::FindClinitImageClassesCallback(mirror::Object* object, void* arg) {
DCHECK(object != NULL);
DCHECK(arg != NULL);
CompilerDriver* compiler_driver = reinterpret_cast<CompilerDriver*>(arg);
MaybeAddToImageClasses(object->GetClass(), compiler_driver->image_classes_.get());
}
void CompilerDriver::UpdateImageClasses(base::TimingLogger& timings) {
if (IsImage()) {
timings.NewSplit("UpdateImageClasses");
// Update image_classes_ with classes for objects created by <clinit> methods.
Thread* self = Thread::Current();
const char* old_cause = self->StartAssertNoThreadSuspension("ImageWriter");
gc::Heap* heap = Runtime::Current()->GetHeap();
// TODO: Image spaces only?
WriterMutexLock mu(self, *Locks::heap_bitmap_lock_);
heap->FlushAllocStack();
heap->GetLiveBitmap()->Walk(FindClinitImageClassesCallback, this);
self->EndAssertNoThreadSuspension(old_cause);
}
}
bool CompilerDriver::CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file,
uint32_t type_idx) {
if (IsImage() && IsImageClass(dex_file.GetTypeDescriptor(dex_file.GetTypeId(type_idx)))) {
if (kIsDebugBuild) {
ScopedObjectAccess soa(Thread::Current());
mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file);
mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx);
CHECK(resolved_class != NULL);
}
stats_->TypeInDexCache();
return true;
} else {
stats_->TypeNotInDexCache();
return false;
}
}
bool CompilerDriver::CanAssumeStringIsPresentInDexCache(const DexFile& dex_file,
uint32_t string_idx) {
// See also Compiler::ResolveDexFile
bool result = false;
if (IsImage()) {
// We resolve all const-string strings when building for the image.
ScopedObjectAccess soa(Thread::Current());
mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file);
Runtime::Current()->GetClassLinker()->ResolveString(dex_file, string_idx, dex_cache);
result = true;
}
if (result) {
stats_->StringInDexCache();
} else {
stats_->StringNotInDexCache();
}
return result;
}
bool CompilerDriver::CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file,
uint32_t type_idx,
bool* type_known_final, bool* type_known_abstract,
bool* equals_referrers_class) {
if (type_known_final != NULL) {
*type_known_final = false;
}
if (type_known_abstract != NULL) {
*type_known_abstract = false;
}
if (equals_referrers_class != NULL) {
*equals_referrers_class = false;
}
ScopedObjectAccess soa(Thread::Current());
mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file);
// Get type from dex cache assuming it was populated by the verifier
mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx);
if (resolved_class == NULL) {
stats_->TypeNeedsAccessCheck();
return false; // Unknown class needs access checks.
}
const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx);
if (equals_referrers_class != NULL) {
*equals_referrers_class = (method_id.class_idx_ == type_idx);
}
mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_);
if (referrer_class == NULL) {
stats_->TypeNeedsAccessCheck();
return false; // Incomplete referrer knowledge needs access check.
}
// Perform access check, will return true if access is ok or false if we're going to have to
// check this at runtime (for example for class loaders).
bool result = referrer_class->CanAccess(resolved_class);
if (result) {
stats_->TypeDoesntNeedAccessCheck();
if (type_known_final != NULL) {
*type_known_final = resolved_class->IsFinal() && !resolved_class->IsArrayClass();
}
if (type_known_abstract != NULL) {
*type_known_abstract = resolved_class->IsAbstract() && !resolved_class->IsArrayClass();
}
} else {
stats_->TypeNeedsAccessCheck();
}
return result;
}
bool CompilerDriver::CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx,
const DexFile& dex_file,
uint32_t type_idx) {
ScopedObjectAccess soa(Thread::Current());
mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file);
// Get type from dex cache assuming it was populated by the verifier.
mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx);
if (resolved_class == NULL) {
stats_->TypeNeedsAccessCheck();
return false; // Unknown class needs access checks.
}
const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx);
mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_);
if (referrer_class == NULL) {
stats_->TypeNeedsAccessCheck();
return false; // Incomplete referrer knowledge needs access check.
}
// Perform access and instantiable checks, will return true if access is ok or false if we're
// going to have to check this at runtime (for example for class loaders).
bool result = referrer_class->CanAccess(resolved_class) && resolved_class->IsInstantiable();
if (result) {
stats_->TypeDoesntNeedAccessCheck();
} else {
stats_->TypeNeedsAccessCheck();
}
return result;
}
static mirror::Class* ComputeCompilingMethodsClass(ScopedObjectAccess& soa,
mirror::DexCache* dex_cache,
const DexCompilationUnit* mUnit)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
// The passed dex_cache is a hint, sanity check before asking the class linker that will take a
// lock.
if (dex_cache->GetDexFile() != mUnit->GetDexFile()) {
dex_cache = mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile());
}
mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader());
const DexFile::MethodId& referrer_method_id = mUnit->GetDexFile()->GetMethodId(mUnit->GetDexMethodIndex());
return mUnit->GetClassLinker()->ResolveType(*mUnit->GetDexFile(), referrer_method_id.class_idx_,
dex_cache, class_loader);
}
static mirror::ArtField* ComputeFieldReferencedFromCompilingMethod(ScopedObjectAccess& soa,
const DexCompilationUnit* mUnit,
uint32_t field_idx)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
mirror::DexCache* dex_cache = mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile());
mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader());
return mUnit->GetClassLinker()->ResolveField(*mUnit->GetDexFile(), field_idx, dex_cache,
class_loader, false);
}
static mirror::ArtMethod* ComputeMethodReferencedFromCompilingMethod(ScopedObjectAccess& soa,
const DexCompilationUnit* mUnit,
uint32_t method_idx,
InvokeType type)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
mirror::DexCache* dex_cache = mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile());
mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader());
return mUnit->GetClassLinker()->ResolveMethod(*mUnit->GetDexFile(), method_idx, dex_cache,
class_loader, NULL, type);
}
bool CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit,
int& field_offset, bool& is_volatile, bool is_put) {
ScopedObjectAccess soa(Thread::Current());
// Conservative defaults.
field_offset = -1;
is_volatile = true;
// Try to resolve field and ignore if an Incompatible Class Change Error (ie is static).
mirror::ArtField* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx);
if (resolved_field != NULL && !resolved_field->IsStatic()) {
mirror::Class* referrer_class =
ComputeCompilingMethodsClass(soa, resolved_field->GetDeclaringClass()->GetDexCache(),
mUnit);
if (referrer_class != NULL) {
mirror::Class* fields_class = resolved_field->GetDeclaringClass();
bool access_ok = referrer_class->CanAccess(fields_class) &&
referrer_class->CanAccessMember(fields_class,
resolved_field->GetAccessFlags());
if (!access_ok) {
// The referring class can't access the resolved field, this may occur as a result of a
// protected field being made public by a sub-class. Resort to the dex file to determine
// the correct class for the access check.
const DexFile& dex_file = *referrer_class->GetDexCache()->GetDexFile();
mirror::Class* dex_fields_class = mUnit->GetClassLinker()->ResolveType(dex_file,
dex_file.GetFieldId(field_idx).class_idx_,
referrer_class);
access_ok = referrer_class->CanAccess(dex_fields_class) &&
referrer_class->CanAccessMember(dex_fields_class,
resolved_field->GetAccessFlags());
}
bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal() &&
fields_class != referrer_class;
if (access_ok && !is_write_to_final_from_wrong_class) {
field_offset = resolved_field->GetOffset().Int32Value();
is_volatile = resolved_field->IsVolatile();
stats_->ResolvedInstanceField();
return true; // Fast path.
}
}
}
// Clean up any exception left by field/type resolution
if (soa.Self()->IsExceptionPending()) {
soa.Self()->ClearException();
}
stats_->UnresolvedInstanceField();
return false; // Incomplete knowledge needs slow path.
}
bool CompilerDriver::ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit,
int& field_offset, int& ssb_index,
bool& is_referrers_class, bool& is_volatile,
bool is_put) {
ScopedObjectAccess soa(Thread::Current());
// Conservative defaults.
field_offset = -1;
ssb_index = -1;
is_referrers_class = false;
is_volatile = true;
// Try to resolve field and ignore if an Incompatible Class Change Error (ie isn't static).
mirror::ArtField* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx);
if (resolved_field != NULL && resolved_field->IsStatic()) {
mirror::Class* referrer_class =
ComputeCompilingMethodsClass(soa, resolved_field->GetDeclaringClass()->GetDexCache(),
mUnit);
if (referrer_class != NULL) {
mirror::Class* fields_class = resolved_field->GetDeclaringClass();
if (fields_class == referrer_class) {
is_referrers_class = true; // implies no worrying about class initialization
field_offset = resolved_field->GetOffset().Int32Value();
is_volatile = resolved_field->IsVolatile();
stats_->ResolvedLocalStaticField();
return true; // fast path
} else {
bool access_ok = referrer_class->CanAccess(fields_class) &&
referrer_class->CanAccessMember(fields_class,
resolved_field->GetAccessFlags());
if (!access_ok) {
// The referring class can't access the resolved field, this may occur as a result of a
// protected field being made public by a sub-class. Resort to the dex file to determine
// the correct class for the access check. Don't change the field's class as that is
// used to identify the SSB.
const DexFile& dex_file = *referrer_class->GetDexCache()->GetDexFile();
mirror::Class* dex_fields_class =
mUnit->GetClassLinker()->ResolveType(dex_file,
dex_file.GetFieldId(field_idx).class_idx_,
referrer_class);
access_ok = referrer_class->CanAccess(dex_fields_class) &&
referrer_class->CanAccessMember(dex_fields_class,
resolved_field->GetAccessFlags());
}
bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal();
if (access_ok && !is_write_to_final_from_wrong_class) {
// We have the resolved field, we must make it into a ssbIndex for the referrer
// in its static storage base (which may fail if it doesn't have a slot for it)
// TODO: for images we can elide the static storage base null check
// if we know there's a non-null entry in the image
mirror::DexCache* dex_cache = mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile());
if (fields_class->GetDexCache() == dex_cache) {
// common case where the dex cache of both the referrer and the field are the same,
// no need to search the dex file
ssb_index = fields_class->GetDexTypeIndex();
field_offset = resolved_field->GetOffset().Int32Value();
is_volatile = resolved_field->IsVolatile();
stats_->ResolvedStaticField();
return true;
}
// Search dex file for localized ssb index, may fail if field's class is a parent
// of the class mentioned in the dex file and there is no dex cache entry.
const DexFile::StringId* string_id =
mUnit->GetDexFile()->FindStringId(FieldHelper(resolved_field).GetDeclaringClassDescriptor());
if (string_id != NULL) {
const DexFile::TypeId* type_id =
mUnit->GetDexFile()->FindTypeId(mUnit->GetDexFile()->GetIndexForStringId(*string_id));
if (type_id != NULL) {
// medium path, needs check of static storage base being initialized
ssb_index = mUnit->GetDexFile()->GetIndexForTypeId(*type_id);
field_offset = resolved_field->GetOffset().Int32Value();
is_volatile = resolved_field->IsVolatile();
stats_->ResolvedStaticField();
return true;
}
}
}
}
}
}
// Clean up any exception left by field/type resolution
if (soa.Self()->IsExceptionPending()) {
soa.Self()->ClearException();
}
stats_->UnresolvedStaticField();
return false; // Incomplete knowledge needs slow path.
}
void CompilerDriver::GetCodeAndMethodForDirectCall(InvokeType type, InvokeType sharp_type,
mirror::Class* referrer_class,
mirror::ArtMethod* method,
uintptr_t& direct_code,
uintptr_t& direct_method,
bool update_stats) {
// For direct and static methods compute possible direct_code and direct_method values, ie
// an address for the Method* being invoked and an address of the code for that Method*.
// For interface calls compute a value for direct_method that is the interface method being
// invoked, so this can be passed to the out-of-line runtime support code.
direct_code = 0;
direct_method = 0;
if (compiler_backend_ == kPortable) {
if (sharp_type != kStatic && sharp_type != kDirect) {
return;
}
} else {
if (sharp_type != kStatic && sharp_type != kDirect && sharp_type != kInterface) {
return;
}
}
bool method_code_in_boot = method->GetDeclaringClass()->GetClassLoader() == NULL;
if (!method_code_in_boot) {
return;
}
bool has_clinit_trampoline = method->IsStatic() && !method->GetDeclaringClass()->IsInitialized();
if (has_clinit_trampoline && (method->GetDeclaringClass() != referrer_class)) {
// Ensure we run the clinit trampoline unless we are invoking a static method in the same class.
return;
}
if (update_stats) {
if (sharp_type != kInterface) { // Interfaces always go via a trampoline.
stats_->DirectCallsToBoot(type);
}
stats_->DirectMethodsToBoot(type);
}
bool compiling_boot = Runtime::Current()->GetHeap()->GetContinuousSpaces().size() == 1;
if (compiling_boot) {
if (support_boot_image_fixup_) {
MethodHelper mh(method);
if (IsImageClass(mh.GetDeclaringClassDescriptor())) {
// We can only branch directly to Methods that are resolved in the DexCache.
// Otherwise we won't invoke the resolution trampoline.
direct_method = -1;
direct_code = -1;
}
}
} else {
if (Runtime::Current()->GetHeap()->FindSpaceFromObject(method, false)->IsImageSpace()) {
direct_method = reinterpret_cast<uintptr_t>(method);
}
direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromCompiledCode());
}
}
bool CompilerDriver::ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc,
InvokeType& invoke_type,
MethodReference& target_method,
int& vtable_idx,
uintptr_t& direct_code, uintptr_t& direct_method,
bool update_stats) {
ScopedObjectAccess soa(Thread::Current());
vtable_idx = -1;
direct_code = 0;
direct_method = 0;
mirror::ArtMethod* resolved_method =
ComputeMethodReferencedFromCompilingMethod(soa, mUnit, target_method.dex_method_index,
invoke_type);
if (resolved_method != NULL) {
// Don't try to fast-path if we don't understand the caller's class or this appears to be an
// Incompatible Class Change Error.
mirror::Class* referrer_class =
ComputeCompilingMethodsClass(soa, resolved_method->GetDeclaringClass()->GetDexCache(),
mUnit);
bool icce = resolved_method->CheckIncompatibleClassChange(invoke_type);
if (referrer_class != NULL && !icce) {
mirror::Class* methods_class = resolved_method->GetDeclaringClass();
if (!referrer_class->CanAccess(methods_class) ||
!referrer_class->CanAccessMember(methods_class,
resolved_method->GetAccessFlags())) {
// The referring class can't access the resolved method, this may occur as a result of a
// protected method being made public by implementing an interface that re-declares the
// method public. Resort to the dex file to determine the correct class for the access
// check.
uint16_t class_idx =
target_method.dex_file->GetMethodId(target_method.dex_method_index).class_idx_;
methods_class = mUnit->GetClassLinker()->ResolveType(*target_method.dex_file,
class_idx, referrer_class);
}
if (referrer_class->CanAccess(methods_class) &&
referrer_class->CanAccessMember(methods_class, resolved_method->GetAccessFlags())) {
const bool kEnableFinalBasedSharpening = true;
// Sharpen a virtual call into a direct call when the target is known not to have been
// overridden (ie is final).
bool can_sharpen_virtual_based_on_type =
(invoke_type == kVirtual) && (resolved_method->IsFinal() || methods_class->IsFinal());
// For invoke-super, ensure the vtable index will be correct to dispatch in the vtable of
// the super class.
bool can_sharpen_super_based_on_type = (invoke_type == kSuper) &&
(referrer_class != methods_class) && referrer_class->IsSubClass(methods_class) &&
resolved_method->GetMethodIndex() < methods_class->GetVTable()->GetLength() &&
(methods_class->GetVTable()->Get(resolved_method->GetMethodIndex()) == resolved_method);
if (kEnableFinalBasedSharpening && (can_sharpen_virtual_based_on_type ||
can_sharpen_super_based_on_type)) {
// Sharpen a virtual call into a direct call. The method_idx is into referrer's
// dex cache, check that this resolved method is where we expect it.
CHECK(referrer_class->GetDexCache()->GetResolvedMethod(target_method.dex_method_index) ==
resolved_method) << PrettyMethod(resolved_method);
if (update_stats) {
stats_->ResolvedMethod(invoke_type);
stats_->VirtualMadeDirect(invoke_type);
}
GetCodeAndMethodForDirectCall(invoke_type, kDirect, referrer_class, resolved_method,
direct_code, direct_method, update_stats);
invoke_type = kDirect;
return true;
}
const bool kEnableVerifierBasedSharpening = true;
if (kEnableVerifierBasedSharpening && (invoke_type == kVirtual ||
invoke_type == kInterface)) {
// Did the verifier record a more precise invoke target based on its type information?
const MethodReference caller_method(mUnit->GetDexFile(), mUnit->GetDexMethodIndex());
const MethodReference* devirt_map_target =
verifier::MethodVerifier::GetDevirtMap(caller_method, dex_pc);
if (devirt_map_target != NULL) {
mirror::DexCache* target_dex_cache =
mUnit->GetClassLinker()->FindDexCache(*devirt_map_target->dex_file);
mirror::ClassLoader* class_loader =
soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader());
mirror::ArtMethod* called_method =
mUnit->GetClassLinker()->ResolveMethod(*devirt_map_target->dex_file,
devirt_map_target->dex_method_index,
target_dex_cache, class_loader, NULL,
kVirtual);
CHECK(called_method != NULL);
CHECK(!called_method->IsAbstract());
GetCodeAndMethodForDirectCall(invoke_type, kDirect, referrer_class, called_method,
direct_code, direct_method, update_stats);
bool compiler_needs_dex_cache =
(GetCompilerBackend() == kPortable) ||
(GetCompilerBackend() == kQuick && instruction_set_ != kThumb2) ||
(direct_code == 0) || (direct_code == static_cast<unsigned int>(-1)) ||
(direct_method == 0) || (direct_method == static_cast<unsigned int>(-1));
if ((devirt_map_target->dex_file != target_method.dex_file) &&
compiler_needs_dex_cache) {
// We need to use the dex cache to find either the method or code, and the dex file
// containing the method isn't the one expected for the target method. Try to find
// the method within the expected target dex file.
// TODO: the -1 could be handled as direct code if the patching new the target dex
// file.
// TODO: quick only supports direct pointers with Thumb2.
// TODO: the following should be factored into a common helper routine to find
// one dex file's method within another.
const DexFile* dexfile = target_method.dex_file;
const DexFile* cm_dexfile =
called_method->GetDeclaringClass()->GetDexCache()->GetDexFile();
const DexFile::MethodId& cm_method_id =
cm_dexfile->GetMethodId(called_method->GetDexMethodIndex());
const char* cm_descriptor = cm_dexfile->StringByTypeIdx(cm_method_id.class_idx_);
const DexFile::StringId* descriptor = dexfile->FindStringId(cm_descriptor);
if (descriptor != NULL) {
const DexFile::TypeId* type_id =
dexfile->FindTypeId(dexfile->GetIndexForStringId(*descriptor));
if (type_id != NULL) {
const char* cm_name = cm_dexfile->GetMethodName(cm_method_id);
const DexFile::StringId* name = dexfile->FindStringId(cm_name);
if (name != NULL) {
uint16_t return_type_idx;
std::vector<uint16_t> param_type_idxs;
bool success = dexfile->CreateTypeList(&return_type_idx, &param_type_idxs,
cm_dexfile->GetMethodSignature(cm_method_id));
if (success) {
const DexFile::ProtoId* sig =
dexfile->FindProtoId(return_type_idx, param_type_idxs);
if (sig != NULL) {
const DexFile::MethodId* method_id = dexfile->FindMethodId(*type_id,
*name, *sig);
if (method_id != NULL) {
if (update_stats) {
stats_->ResolvedMethod(invoke_type);
stats_->VirtualMadeDirect(invoke_type);
stats_->PreciseTypeDevirtualization();
}
target_method.dex_method_index = dexfile->GetIndexForMethodId(*method_id);
invoke_type = kDirect;
return true;
}
}
}
}
}
}
// TODO: the stats for direct code and method are off as we failed to find the direct
// method in the referring method's dex cache/file.
} else {
if (update_stats) {
stats_->ResolvedMethod(invoke_type);
stats_->VirtualMadeDirect(invoke_type);
stats_->PreciseTypeDevirtualization();
}
target_method = *devirt_map_target;
invoke_type = kDirect;
return true;
}
}
}
if (invoke_type == kSuper) {
// Unsharpened super calls are suspicious so go slow-path.
} else {
// Sharpening failed so generate a regular resolved method dispatch.
if (update_stats) {
stats_->ResolvedMethod(invoke_type);
}
if (invoke_type == kVirtual || invoke_type == kSuper) {
vtable_idx = resolved_method->GetMethodIndex();
}
GetCodeAndMethodForDirectCall(invoke_type, invoke_type, referrer_class, resolved_method,
direct_code, direct_method, update_stats);
return true;
}
}
}
}
// Clean up any exception left by method/invoke_type resolution
if (soa.Self()->IsExceptionPending()) {
soa.Self()->ClearException();
}
if (update_stats) {
stats_->UnresolvedMethod(invoke_type);
}
return false; // Incomplete knowledge needs slow path.
}
bool CompilerDriver::IsSafeCast(const MethodReference& mr, uint32_t dex_pc) {
bool result = verifier::MethodVerifier::IsSafeCast(mr, dex_pc);
if (result) {
stats_->SafeCast();
} else {
stats_->NotASafeCast();
}
return result;
}
void CompilerDriver::AddCodePatch(const DexFile* dex_file,
uint32_t referrer_method_idx,
InvokeType referrer_invoke_type,
uint32_t target_method_idx,
InvokeType target_invoke_type,
size_t literal_offset) {
MutexLock mu(Thread::Current(), compiled_methods_lock_);
code_to_patch_.push_back(new PatchInformation(dex_file,
referrer_method_idx,
referrer_invoke_type,
target_method_idx,
target_invoke_type,
literal_offset));
}
void CompilerDriver::AddMethodPatch(const DexFile* dex_file,
uint32_t referrer_method_idx,
InvokeType referrer_invoke_type,
uint32_t target_method_idx,
InvokeType target_invoke_type,
size_t literal_offset) {
MutexLock mu(Thread::Current(), compiled_methods_lock_);
methods_to_patch_.push_back(new PatchInformation(dex_file,
referrer_method_idx,
referrer_invoke_type,
target_method_idx,
target_invoke_type,
literal_offset));
}
class ParallelCompilationManager {
public:
typedef void Callback(const ParallelCompilationManager* manager, size_t index);
ParallelCompilationManager(ClassLinker* class_linker,
jobject class_loader,
CompilerDriver* compiler,
const DexFile* dex_file,
ThreadPool& thread_pool)
: index_(0),
class_linker_(class_linker),
class_loader_(class_loader),
compiler_(compiler),
dex_file_(dex_file),
thread_pool_(&thread_pool) {}
ClassLinker* GetClassLinker() const {
CHECK(class_linker_ != NULL);
return class_linker_;
}
jobject GetClassLoader() const {
return class_loader_;
}
CompilerDriver* GetCompiler() const {
CHECK(compiler_ != NULL);
return compiler_;
}
const DexFile* GetDexFile() const {
CHECK(dex_file_ != NULL);
return dex_file_;
}
void ForAll(size_t begin, size_t end, Callback callback, size_t work_units) {
Thread* self = Thread::Current();
self->AssertNoPendingException();
CHECK_GT(work_units, 0U);
std::vector<ForAllClosure*> closures(work_units);
index_ = begin;
for (size_t i = 0; i < work_units; ++i) {
closures[i] = new ForAllClosure(this, end, callback);
thread_pool_->AddTask(self, closures[i]);
}
thread_pool_->StartWorkers(self);
// Ensure we're suspended while we're blocked waiting for the other threads to finish (worker
// thread destructor's called below perform join).
CHECK_NE(self->GetState(), kRunnable);
// Wait for all the worker threads to finish.
thread_pool_->Wait(self, true, false);
}
size_t NextIndex() {
return index_.fetch_add(1);
}
private:
class ForAllClosure : public Task {
public:
ForAllClosure(ParallelCompilationManager* manager, size_t end, Callback* callback)
: manager_(manager),
end_(end),
callback_(callback) {}
virtual void Run(Thread* self) {
while (true) {
const size_t index = manager_->NextIndex();
if (UNLIKELY(index >= end_)) {
break;
}
callback_(manager_, index);
self->AssertNoPendingException();
}
}
virtual void Finalize() {
delete this;
}
private:
ParallelCompilationManager* const manager_;
const size_t end_;
const Callback* const callback_;
};
AtomicInteger index_;
ClassLinker* const class_linker_;
const jobject class_loader_;
CompilerDriver* const compiler_;
const DexFile* const dex_file_;
ThreadPool* const thread_pool_;
DISALLOW_COPY_AND_ASSIGN(ParallelCompilationManager);
};
// Return true if the class should be skipped during compilation. We
// never skip classes in the boot class loader. However, if we have a
// non-boot class loader and we can resolve the class in the boot
// class loader, we do skip the class. This happens if an app bundles
// classes found in the boot classpath. Since at runtime we will
// select the class from the boot classpath, do not attempt to resolve
// or compile it now.
static bool SkipClass(ClassLinker* class_linker, jobject class_loader, const DexFile& dex_file,
const DexFile::ClassDef& class_def) {
if (class_loader == NULL) {
return false;
}
const char* descriptor = dex_file.GetClassDescriptor(class_def);
return class_linker->IsInBootClassPath(descriptor);
}
static void ResolveClassFieldsAndMethods(const ParallelCompilationManager* manager,
size_t class_def_index)
LOCKS_EXCLUDED(Locks::mutator_lock_) {
ATRACE_CALL();
Thread* self = Thread::Current();
jobject jclass_loader = manager->GetClassLoader();
const DexFile& dex_file = *manager->GetDexFile();
ClassLinker* class_linker = manager->GetClassLinker();
// If an instance field is final then we need to have a barrier on the return, static final
// fields are assigned within the lock held for class initialization. Conservatively assume
// constructor barriers are always required.
bool requires_constructor_barrier = true;
// Method and Field are the worst. We can't resolve without either
// context from the code use (to disambiguate virtual vs direct
// method and instance vs static field) or from class
// definitions. While the compiler will resolve what it can as it
// needs it, here we try to resolve fields and methods used in class
// definitions, since many of them many never be referenced by
// generated code.
const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index);
if (!SkipClass(class_linker, jclass_loader, dex_file, class_def)) {
// Note the class_data pointer advances through the headers,
// static fields, instance fields, direct methods, and virtual
// methods.
const byte* class_data = dex_file.GetClassData(class_def);
if (class_data == NULL) {
// Empty class such as a marker interface.
requires_constructor_barrier = false;
} else {
ScopedObjectAccess soa(self);
mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(jclass_loader);
mirror::DexCache* dex_cache = class_linker->FindDexCache(dex_file);
// Resolve the class.
mirror::Class* klass = class_linker->ResolveType(dex_file, class_def.class_idx_, dex_cache,
class_loader);
bool resolve_fields_and_methods;
if (klass == NULL) {
// Class couldn't be resolved, for example, super-class is in a different dex file. Don't
// attempt to resolve methods and fields when there is no declaring class.
CHECK(soa.Self()->IsExceptionPending());
soa.Self()->ClearException();
resolve_fields_and_methods = false;
} else {
resolve_fields_and_methods = manager->GetCompiler()->IsImage();
}
ClassDataItemIterator it(dex_file, class_data);
while (it.HasNextStaticField()) {
if (resolve_fields_and_methods) {
mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(),
dex_cache, class_loader, true);
if (field == NULL) {
CHECK(soa.Self()->IsExceptionPending());
soa.Self()->ClearException();
}
}
it.Next();
}
// We require a constructor barrier if there are final instance fields.
requires_constructor_barrier = false;
while (it.HasNextInstanceField()) {
if ((it.GetMemberAccessFlags() & kAccFinal) != 0) {
requires_constructor_barrier = true;
}
if (resolve_fields_and_methods) {
mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(),
dex_cache, class_loader, false);
if (field == NULL) {
CHECK(soa.Self()->IsExceptionPending());
soa.Self()->ClearException();
}
}
it.Next();
}
if (resolve_fields_and_methods) {
while (it.HasNextDirectMethod()) {
mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(),
dex_cache, class_loader, NULL,
it.GetMethodInvokeType(class_def));
if (method == NULL) {
CHECK(soa.Self()->IsExceptionPending());
soa.Self()->ClearException();
}
it.Next();
}
while (it.HasNextVirtualMethod()) {
mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(),
dex_cache, class_loader, NULL,
it.GetMethodInvokeType(class_def));
if (method == NULL) {
CHECK(soa.Self()->IsExceptionPending());
soa.Self()->ClearException();
}
it.Next();
}
DCHECK(!it.HasNext());
}
}
}
if (requires_constructor_barrier) {
manager->GetCompiler()->AddRequiresConstructorBarrier(self, &dex_file, class_def_index);
}
}
static void ResolveType(const ParallelCompilationManager* manager, size_t type_idx)
LOCKS_EXCLUDED(Locks::mutator_lock_) {
// Class derived values are more complicated, they require the linker and loader.
ScopedObjectAccess soa(Thread::Current());
ClassLinker* class_linker = manager->GetClassLinker();
const DexFile& dex_file = *manager->GetDexFile();
mirror::DexCache* dex_cache = class_linker->FindDexCache(dex_file);
mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader());
mirror::Class* klass = class_linker->ResolveType(dex_file, type_idx, dex_cache, class_loader);
if (klass == NULL) {
CHECK(soa.Self()->IsExceptionPending());
mirror::Throwable* exception = soa.Self()->GetException(NULL);
VLOG(compiler) << "Exception during type resolution: " << exception->Dump();
if (strcmp(ClassHelper(exception->GetClass()).GetDescriptor(),
"Ljava/lang/OutOfMemoryError;") == 0) {
// There's little point continuing compilation if the heap is exhausted.
LOG(FATAL) << "Out of memory during type resolution for compilation";
}
soa.Self()->ClearException();
}
}
void CompilerDriver::ResolveDexFile(jobject class_loader, const DexFile& dex_file,
ThreadPool& thread_pool, base::TimingLogger& timings) {
ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
// TODO: we could resolve strings here, although the string table is largely filled with class
// and method names.
ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool);
if (IsImage()) {
// For images we resolve all types, such as array, whereas for applications just those with
// classdefs are resolved by ResolveClassFieldsAndMethods.
// TODO: strdup memory leak.
timings.NewSplit(strdup(("Resolve " + dex_file.GetLocation() + " Types").c_str()));
context.ForAll(0, dex_file.NumTypeIds(), ResolveType, thread_count_);
}
// TODO: strdup memory leak.
timings.NewSplit(strdup(("Resolve " + dex_file.GetLocation() + " MethodsAndFields").c_str()));
context.ForAll(0, dex_file.NumClassDefs(), ResolveClassFieldsAndMethods, thread_count_);
}
void CompilerDriver::Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files,
ThreadPool& thread_pool, base::TimingLogger& timings) {
for (size_t i = 0; i != dex_files.size(); ++i) {
const DexFile* dex_file = dex_files[i];
CHECK(dex_file != NULL);
VerifyDexFile(class_loader, *dex_file, thread_pool, timings);
}
}
static void VerifyClass(const ParallelCompilationManager* manager, size_t class_def_index)
LOCKS_EXCLUDED(Locks::mutator_lock_) {
ATRACE_CALL();
ScopedObjectAccess soa(Thread::Current());
const DexFile::ClassDef& class_def = manager->GetDexFile()->GetClassDef(class_def_index);
const char* descriptor = manager->GetDexFile()->GetClassDescriptor(class_def);
mirror::Class* klass =
manager->GetClassLinker()->FindClass(descriptor,
soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader()));
if (klass == NULL) {
CHECK(soa.Self()->IsExceptionPending());
soa.Self()->ClearException();
/*
* At compile time, we can still structurally verify the class even if FindClass fails.
* This is to ensure the class is structurally sound for compilation. An unsound class
* will be rejected by the verifier and later skipped during compilation in the compiler.
*/
mirror::DexCache* dex_cache = manager->GetClassLinker()->FindDexCache(*manager->GetDexFile());
std::string error_msg;
if (verifier::MethodVerifier::VerifyClass(manager->GetDexFile(),
dex_cache,
soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader()),
class_def_index, error_msg, true) ==
verifier::MethodVerifier::kHardFailure) {
const DexFile::ClassDef& class_def = manager->GetDexFile()->GetClassDef(class_def_index);
LOG(ERROR) << "Verification failed on class "
<< PrettyDescriptor(manager->GetDexFile()->GetClassDescriptor(class_def))
<< " because: " << error_msg;
}
} else {
CHECK(klass->IsResolved()) << PrettyClass(klass);
manager->GetClassLinker()->VerifyClass(klass);
if (klass->IsErroneous()) {
// ClassLinker::VerifyClass throws, which isn't useful in the compiler.
CHECK(soa.Self()->IsExceptionPending());
soa.Self()->ClearException();
}
CHECK(klass->IsCompileTimeVerified() || klass->IsErroneous())
<< PrettyDescriptor(klass) << ": state=" << klass->GetStatus();
}
soa.Self()->AssertNoPendingException();
}
void CompilerDriver::VerifyDexFile(jobject class_loader, const DexFile& dex_file,
ThreadPool& thread_pool, base::TimingLogger& timings) {
// TODO: strdup memory leak.
timings.NewSplit(strdup(("Verify " + dex_file.GetLocation()).c_str()));
ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool);
context.ForAll(0, dex_file.NumClassDefs(), VerifyClass, thread_count_);
}
static const char* class_initializer_black_list[] = {
"Landroid/app/ActivityThread;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/bluetooth/BluetoothAudioGateway;", // Calls android.bluetooth.BluetoothAudioGateway.classInitNative().
"Landroid/bluetooth/HeadsetBase;", // Calls android.bluetooth.HeadsetBase.classInitNative().
"Landroid/content/res/CompatibilityInfo;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int.
"Landroid/content/res/CompatibilityInfo$1;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int.
"Landroid/content/UriMatcher;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/database/CursorWindow;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int.
"Landroid/database/sqlite/SQLiteConnection;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/database/sqlite/SQLiteConnection$Operation;", // Requires SimpleDateFormat -> java.util.Locale.
"Landroid/database/sqlite/SQLiteDatabaseConfiguration;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/database/sqlite/SQLiteDebug;", // Calls android.util.Log.isLoggable.
"Landroid/database/sqlite/SQLiteOpenHelper;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex.
"Landroid/database/sqlite/SQLiteQueryBuilder;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/drm/DrmManagerClient;", // Calls System.loadLibrary.
"Landroid/graphics/drawable/AnimatedRotateDrawable;", // Sub-class of Drawable.
"Landroid/graphics/drawable/AnimationDrawable;", // Sub-class of Drawable.
"Landroid/graphics/drawable/BitmapDrawable;", // Sub-class of Drawable.
"Landroid/graphics/drawable/ClipDrawable;", // Sub-class of Drawable.
"Landroid/graphics/drawable/ColorDrawable;", // Sub-class of Drawable.
"Landroid/graphics/drawable/Drawable;", // Requires android.graphics.Rect.
"Landroid/graphics/drawable/DrawableContainer;", // Sub-class of Drawable.
"Landroid/graphics/drawable/GradientDrawable;", // Sub-class of Drawable.
"Landroid/graphics/drawable/LayerDrawable;", // Sub-class of Drawable.
"Landroid/graphics/drawable/NinePatchDrawable;", // Sub-class of Drawable.
"Landroid/graphics/drawable/RotateDrawable;", // Sub-class of Drawable.
"Landroid/graphics/drawable/ScaleDrawable;", // Sub-class of Drawable.
"Landroid/graphics/drawable/ShapeDrawable;", // Sub-class of Drawable.
"Landroid/graphics/drawable/StateListDrawable;", // Sub-class of Drawable.
"Landroid/graphics/drawable/TransitionDrawable;", // Sub-class of Drawable.
"Landroid/graphics/Matrix;", // Calls android.graphics.Matrix.native_create.
"Landroid/graphics/Matrix$1;", // Requires Matrix.
"Landroid/graphics/PixelFormat;", // Calls android.graphics.PixelFormat.nativeClassInit().
"Landroid/graphics/Rect;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/graphics/SurfaceTexture;", // Calls android.graphics.SurfaceTexture.nativeClassInit().
"Landroid/graphics/Typeface;", // Calls android.graphics.Typeface.nativeCreate.
"Landroid/inputmethodservice/ExtractEditText;", // Requires android.widget.TextView.
"Landroid/media/AmrInputStream;", // Calls OsConstants.initConstants.
"Landroid/media/CamcorderProfile;", // Calls OsConstants.initConstants.
"Landroid/media/CameraProfile;", // Calls System.loadLibrary.
"Landroid/media/DecoderCapabilities;", // Calls System.loadLibrary.
"Landroid/media/EncoderCapabilities;", // Calls OsConstants.initConstants.
"Landroid/media/ExifInterface;", // Calls OsConstants.initConstants.
"Landroid/media/MediaCodec;", // Calls OsConstants.initConstants.
"Landroid/media/MediaCodecList;", // Calls OsConstants.initConstants.
"Landroid/media/MediaCrypto;", // Calls OsConstants.initConstants.
"Landroid/media/MediaDrm;", // Calls OsConstants.initConstants.
"Landroid/media/MediaExtractor;", // Calls OsConstants.initConstants.
"Landroid/media/MediaFile;", // Requires DecoderCapabilities.
"Landroid/media/MediaMetadataRetriever;", // Calls OsConstants.initConstants.
"Landroid/media/MediaMuxer;", // Calls OsConstants.initConstants.
"Landroid/media/MediaPlayer;", // Calls System.loadLibrary.
"Landroid/media/MediaRecorder;", // Calls System.loadLibrary.
"Landroid/media/MediaScanner;", // Calls System.loadLibrary.
"Landroid/media/ResampleInputStream;", // Calls OsConstants.initConstants.
"Landroid/media/SoundPool;", // Calls OsConstants.initConstants.
"Landroid/media/videoeditor/MediaArtistNativeHelper;", // Calls OsConstants.initConstants.
"Landroid/media/videoeditor/VideoEditorProfile;", // Calls OsConstants.initConstants.
"Landroid/mtp/MtpDatabase;", // Calls OsConstants.initConstants.
"Landroid/mtp/MtpDevice;", // Calls OsConstants.initConstants.
"Landroid/mtp/MtpServer;", // Calls OsConstants.initConstants.
"Landroid/net/NetworkInfo;", // Calls java.util.EnumMap.<init> -> java.lang.Enum.getSharedConstants -> System.identityHashCode.
"Landroid/net/Proxy;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/net/SSLCertificateSocketFactory;", // Requires javax.net.ssl.HttpsURLConnection.
"Landroid/net/Uri$AbstractHierarchicalUri;", // Requires Uri.
"Landroid/net/Uri$HierarchicalUri;", // Requires Uri.
"Landroid/net/Uri$OpaqueUri;", // Requires Uri.
"Landroid/net/Uri$StringUri;", // Requires Uri.
"Landroid/net/Uri;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex.
"Landroid/net/WebAddress;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/net/wifi/WifiNative;", // Calls new LocalLog -> new Time -> TimeZone -> Pattern.compile.
"Landroid/nfc/NdefRecord;", // Calls String.getBytes -> java.nio.charset.Charset.
"Landroid/opengl/EGL14;", // Calls android.opengl.EGL14._nativeClassInit.
"Landroid/opengl/GLES10;", // Calls android.opengl.GLES10._nativeClassInit.
"Landroid/opengl/GLES10Ext;", // Calls android.opengl.GLES10Ext._nativeClassInit.
"Landroid/opengl/GLES11;", // Requires GLES10.
"Landroid/opengl/GLES11Ext;", // Calls android.opengl.GLES11Ext._nativeClassInit.
"Landroid/opengl/GLES20;", // Calls android.opengl.GLES20._nativeClassInit.
"Landroid/opengl/GLUtils;", // Calls android.opengl.GLUtils.nativeClassInit.
"Landroid/os/Build;", // Calls -..-> android.os.SystemProperties.native_get.
"Landroid/os/Build$VERSION;", // Requires Build.
"Landroid/os/Debug;", // Requires android.os.Environment.
"Landroid/os/Environment;", // Calls System.getenv.
"Landroid/os/FileUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/os/StrictMode;", // Calls android.util.Log.isLoggable.
"Landroid/os/StrictMode$VmPolicy;", // Requires StrictMode.
"Landroid/os/Trace;", // Calls android.os.Trace.nativeGetEnabledTags.
"Landroid/os/UEventObserver;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex.
"Landroid/provider/ContactsContract;", // Calls OsConstants.initConstants.
"Landroid/provider/Settings$Global;", // Calls OsConstants.initConstants.
"Landroid/provider/Settings$Secure;", // Requires android.net.Uri.
"Landroid/provider/Settings$System;", // Requires android.net.Uri.
"Landroid/renderscript/RenderScript;", // Calls System.loadLibrary.
"Landroid/server/BluetoothService;", // Calls android.server.BluetoothService.classInitNative.
"Landroid/server/BluetoothEventLoop;", // Calls android.server.BluetoothEventLoop.classInitNative.
"Landroid/telephony/PhoneNumberUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/telephony/TelephonyManager;", // Calls OsConstants.initConstants.
"Landroid/text/AutoText;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int.
"Landroid/text/Layout;", // Calls com.android.internal.util.ArrayUtils.emptyArray -> System.identityHashCode.
"Landroid/text/BoringLayout;", // Requires Layout.
"Landroid/text/DynamicLayout;", // Requires Layout.
"Landroid/text/Html$HtmlParser;", // Calls -..-> String.toLowerCase -> java.util.Locale.
"Landroid/text/StaticLayout;", // Requires Layout.
"Landroid/text/TextUtils;", // Requires android.util.DisplayMetrics.
"Landroid/util/DisplayMetrics;", // Calls SystemProperties.native_get_int.
"Landroid/util/Patterns;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/view/Choreographer;", // Calls SystemProperties.native_get_boolean.
"Landroid/util/Patterns;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/view/GLES20Canvas;", // Calls GLES20Canvas.nIsAvailable().
"Landroid/view/GLES20RecordingCanvas;", // Requires android.view.GLES20Canvas.
"Landroid/view/GestureDetector;", // Calls android.view.GLES20Canvas.nIsAvailable.
"Landroid/view/HardwareRenderer$Gl20Renderer;", // Requires SystemProperties.native_get.
"Landroid/view/HardwareRenderer$GlRenderer;", // Requires SystemProperties.native_get.
"Landroid/view/InputEventConsistencyVerifier;", // Requires android.os.Build.
"Landroid/view/Surface;", // Requires SystemProperties.native_get.
"Landroid/view/SurfaceControl;", // Calls OsConstants.initConstants.
"Landroid/view/animation/AlphaAnimation;", // Requires Animation.
"Landroid/view/animation/Animation;", // Calls SystemProperties.native_get_boolean.
"Landroid/view/animation/AnimationSet;", // Calls OsConstants.initConstants.
"Landroid/view/textservice/SpellCheckerSubtype;", // Calls Class.getDex().
"Landroid/webkit/JniUtil;", // Calls System.loadLibrary.
"Landroid/webkit/PluginManager;", // // Calls OsConstants.initConstants.
"Landroid/webkit/WebViewCore;", // Calls System.loadLibrary.
"Landroid/webkit/WebViewFactory;", // Calls -..-> android.os.SystemProperties.native_get.
"Landroid/webkit/WebViewFactory$Preloader;", // Calls to Class.forName.
"Landroid/webkit/WebViewInputDispatcher;", // Calls Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/webkit/URLUtil;", // Calls Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/widget/AutoCompleteTextView;", // Requires TextView.
"Landroid/widget/Button;", // Requires TextView.
"Landroid/widget/CheckBox;", // Requires TextView.
"Landroid/widget/CheckedTextView;", // Requires TextView.
"Landroid/widget/CompoundButton;", // Requires TextView.
"Landroid/widget/EditText;", // Requires TextView.
"Landroid/widget/NumberPicker;", // Requires java.util.Locale.
"Landroid/widget/ScrollBarDrawable;", // Sub-class of Drawable.
"Landroid/widget/SearchView$SearchAutoComplete;", // Requires TextView.
"Landroid/widget/Switch;", // Requires TextView.
"Landroid/widget/TextView;", // Calls Paint.<init> -> Paint.native_init.
"Lcom/android/i18n/phonenumbers/AsYouTypeFormatter;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Lcom/android/i18n/phonenumbers/MetadataManager;", // Calls OsConstants.initConstants.
"Lcom/android/i18n/phonenumbers/PhoneNumberMatcher;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Lcom/android/i18n/phonenumbers/PhoneNumberUtil;", // Requires java.util.logging.LogManager.
"Lcom/android/i18n/phonenumbers/geocoding/AreaCodeMap;", // Calls OsConstants.initConstants.
"Lcom/android/i18n/phonenumbers/geocoding/PhoneNumberOfflineGeocoder;", // Calls OsConstants.initConstants.
"Lcom/android/internal/os/SamplingProfilerIntegration;", // Calls SystemProperties.native_get_int.
"Lcom/android/internal/policy/impl/PhoneWindow;", // Calls android.os.Binder.init.
"Lcom/android/internal/view/menu/ActionMenuItemView;", // Requires TextView.
"Lcom/android/internal/widget/DialogTitle;", // Requires TextView.
"Lcom/android/org/bouncycastle/asn1/StreamUtil;", // Calls Runtime.getRuntime().maxMemory().
"Lcom/android/org/bouncycastle/asn1/pkcs/MacData;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/asn1/pkcs/RSASSAPSSparams;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/asn1/cms/SignedData;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/asn1/x509/GeneralSubtree;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/asn1/x9/X9ECParameters;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$MD5;", // Requires com.android.org.conscrypt.NativeCrypto.
"Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA1;", // Requires com.android.org.conscrypt.NativeCrypto.
"Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA256;", // Requires com.android.org.conscrypt.NativeCrypto.
"Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA384;", // Requires com.android.org.conscrypt.NativeCrypto.
"Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA512;", // Requires com.android.org.conscrypt.NativeCrypto.
"Lcom/android/org/bouncycastle/crypto/engines/RSABlindedEngine;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/crypto/generators/DHKeyGeneratorHelper;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/crypto/generators/DHParametersGenerator;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/crypto/generators/DHParametersHelper;", // Calls System.getenv -> OsConstants.initConstants.
"Lcom/android/org/bouncycastle/crypto/generators/DSAKeyPairGenerator;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/crypto/generators/DSAParametersGenerator;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/crypto/generators/RSAKeyPairGenerator;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants.
"Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/dsa/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants.
"Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$EC;", // Calls OsConstants.initConstants.
"Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDH;", // Calls OsConstants.initConstants.
"Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDHC;", // Calls OsConstants.initConstants.
"Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDSA;", // Calls OsConstants.initConstants.
"Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECMQV;", // Calls OsConstants.initConstants.
"Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants.
"Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateCrtKey;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateKey;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants.
"Lcom/android/org/bouncycastle/jcajce/provider/keystore/pkcs12/PKCS12KeyStoreSpi$BCPKCS12KeyStore;", // Calls Thread.currentThread.
"Lcom/android/org/bouncycastle/jcajce/provider/keystore/pkcs12/PKCS12KeyStoreSpi;", // Calls Thread.currentThread.
"Lcom/android/org/bouncycastle/jce/PKCS10CertificationRequest;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/jce/provider/CertBlacklist;", // Calls System.getenv -> OsConstants.initConstants.
"Lcom/android/org/bouncycastle/jce/provider/JCERSAPrivateCrtKey;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/jce/provider/JCERSAPrivateKey;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/jce/provider/PKIXCertPathValidatorSpi;", // Calls System.getenv -> OsConstants.initConstants.
"Lcom/android/org/bouncycastle/math/ec/ECConstants;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/math/ec/Tnaf;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/util/BigIntegers;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/bouncycastle/x509/X509Util;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lcom/android/org/conscrypt/CipherSuite;", // Calls OsConstants.initConstants.
"Lcom/android/org/conscrypt/FileClientSessionCache$CacheFile;", // Calls OsConstants.initConstants.
"Lcom/android/org/conscrypt/HandshakeIODataStream;", // Calls OsConstants.initConstants.
"Lcom/android/org/conscrypt/Logger;", // Calls OsConstants.initConstants.
"Lcom/android/org/conscrypt/NativeCrypto;", // Calls native NativeCrypto.clinit().
"Lcom/android/org/conscrypt/OpenSSLECKeyPairGenerator;", // Calls OsConstants.initConstants.
"Lcom/android/org/conscrypt/OpenSSLEngine;", // Requires com.android.org.conscrypt.NativeCrypto.
"Lcom/android/org/conscrypt/OpenSSLMac$HmacMD5;", // Calls native NativeCrypto.clinit().
"Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA1;", // Calls native NativeCrypto.clinit().
"Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA256;", // Calls native NativeCrypto.clinit().
"Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA384;", // Calls native NativeCrypto.clinit().
"Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA512;", // Calls native NativeCrypto.clinit().
"Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$MD5;", // Requires com.android.org.conscrypt.NativeCrypto.
"Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA1;", // Requires com.android.org.conscrypt.NativeCrypto.
"Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA256;", // Requires com.android.org.conscrypt.NativeCrypto.
"Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA384;", // Requires com.android.org.conscrypt.NativeCrypto.
"Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA512;", // Requires com.android.org.conscrypt.NativeCrypto.
"Lcom/android/org/conscrypt/OpenSSLX509CertPath;", // Calls OsConstants.initConstants.
"Lcom/android/org/conscrypt/OpenSSLX509CertificateFactory;", // Calls OsConstants.initConstants.
"Lcom/android/org/conscrypt/PRF;", // Calls OsConstants.initConstants.
"Lcom/android/org/conscrypt/SSLSessionImpl;", // Calls OsConstants.initConstants.
"Lcom/android/org/conscrypt/TrustedCertificateStore;", // Calls System.getenv -> OsConstants.initConstants.
"Lcom/android/okhttp/ConnectionPool;", // Calls OsConstants.initConstants.
"Lcom/android/okhttp/OkHttpClient;", // Calls OsConstants.initConstants.
"Lcom/android/okhttp/internal/DiskLruCache;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Lcom/android/okhttp/internal/Util;", // Calls OsConstants.initConstants.
"Lcom/android/okhttp/internal/http/HttpsURLConnectionImpl;", // Calls VMClassLoader.getBootClassPathSize.
"Lcom/android/okhttp/internal/spdy/SpdyConnection;", // Calls OsConstants.initConstants.
"Lcom/android/okhttp/internal/spdy/SpdyReader;", // Calls OsConstants.initConstants.
"Lcom/android/okhttp/internal/tls/OkHostnameVerifier;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Lcom/google/android/gles_jni/EGLContextImpl;", // Calls com.google.android.gles_jni.EGLImpl._nativeClassInit.
"Lcom/google/android/gles_jni/EGLImpl;", // Calls com.google.android.gles_jni.EGLImpl._nativeClassInit.
"Lcom/google/android/gles_jni/GLImpl;", // Calls com.google.android.gles_jni.GLImpl._nativeClassInit.
"Lgov/nist/core/GenericObject;", // Calls OsConstants.initConstants.
"Lgov/nist/core/Host;", // Calls OsConstants.initConstants.
"Lgov/nist/core/HostPort;", // Calls OsConstants.initConstants.
"Lgov/nist/core/NameValue;", // Calls OsConstants.initConstants.
"Lgov/nist/core/net/DefaultNetworkLayer;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/Utils;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/address/AddressImpl;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/address/Authority;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/address/GenericURI;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/address/NetObject;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/address/SipUri;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/address/TelephoneNumber;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/address/UserInfo;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/Accept;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/AcceptEncoding;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/AcceptLanguage;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/AddressParametersHeader;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/AlertInfoList;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/AllowEvents;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/AllowEventsList;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/AuthenticationInfo;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/Authorization;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/CSeq;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/CallIdentifier;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/Challenge;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ContactList;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ContentEncoding;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ContentEncodingList;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ContentLanguageList;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ContentType;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/Credentials;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ErrorInfoList;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/Expires;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/From;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/MimeVersion;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/NameMap;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/Priority;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/Protocol;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ProxyAuthenticate;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ProxyAuthenticateList;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ProxyAuthorizationList;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ProxyRequire;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ProxyRequireList;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/RSeq;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/RecordRoute;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ReferTo;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/RequestLine;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/Require;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/RetryAfter;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/SIPETag;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/SIPHeader;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/SIPHeaderNamesCache;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/StatusLine;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/SubscriptionState;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/TimeStamp;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/UserAgent;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/Unsupported;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/Warning;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ViaList;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/extensions/Join;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/extensions/References;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/extensions/Replaces;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ims/PAccessNetworkInfo;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ims/PAssertedIdentity;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ims/PAssertedIdentityList;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ims/PAssociatedURI;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ims/PCalledPartyID;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ims/PChargingVector;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ims/PPreferredIdentity;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ims/PVisitedNetworkIDList;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ims/PathList;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ims/SecurityAgree;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ims/SecurityClient;", // Calls OsConstants.initConstants.
"Lgov/nist/javax/sip/header/ims/ServiceRoute;", // Calls OsConstants.initConstants.
"Ljava/io/Console;", // Has FileDescriptor(s).
"Ljava/io/File;", // Calls to Random.<init> -> System.currentTimeMillis -> OsConstants.initConstants.
"Ljava/io/FileDescriptor;", // Requires libcore.io.OsConstants.
"Ljava/io/ObjectInputStream;", // Requires java.lang.ClassLoader$SystemClassLoader.
"Ljava/io/ObjectStreamClass;", // Calls to Class.forName -> java.io.FileDescriptor.
"Ljava/io/ObjectStreamConstants;", // Instance of non-image class SerializablePermission.
"Ljava/lang/ClassLoader$SystemClassLoader;", // Calls System.getProperty -> OsConstants.initConstants.
"Ljava/lang/HexStringParser;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Ljava/lang/ProcessManager;", // Calls Thread.currentThread.
"Ljava/lang/Runtime;", // Calls System.getProperty -> OsConstants.initConstants.
"Ljava/lang/System;", // Calls OsConstants.initConstants.
"Ljava/math/BigDecimal;", // Calls native ... -> java.math.NativeBN.BN_new().
"Ljava/math/BigInteger;", // Calls native ... -> java.math.NativeBN.BN_new().
"Ljava/math/Primality;", // Calls native ... -> java.math.NativeBN.BN_new().
"Ljava/math/Multiplication;", // Calls native ... -> java.math.NativeBN.BN_new().
"Ljava/net/InetAddress;", // Requires libcore.io.OsConstants.
"Ljava/net/Inet4Address;", // Sub-class of InetAddress.
"Ljava/net/Inet6Address;", // Sub-class of InetAddress.
"Ljava/net/InetUnixAddress;", // Sub-class of InetAddress.
"Ljava/nio/charset/Charset;", // Calls Charset.getDefaultCharset -> System.getProperty -> OsConstants.initConstants.
"Ljava/nio/charset/CharsetICU;", // Sub-class of Charset.
"Ljava/nio/charset/Charsets;", // Calls Charset.forName.
"Ljava/nio/charset/StandardCharsets;", // Calls OsConstants.initConstants.
"Ljava/security/AlgorithmParameterGenerator;", // Calls OsConstants.initConstants.
"Ljava/security/KeyPairGenerator$KeyPairGeneratorImpl;", // Calls OsConstants.initConstants.
"Ljava/security/KeyPairGenerator;", // Calls OsConstants.initConstants.
"Ljava/security/Security;", // Tries to do disk IO for "security.properties".
"Ljava/security/spec/RSAKeyGenParameterSpec;", // java.math.NativeBN.BN_new()
"Ljava/sql/Date;", // Calls OsConstants.initConstants.
"Ljava/sql/DriverManager;", // Calls OsConstants.initConstants.
"Ljava/sql/Time;", // Calls OsConstants.initConstants.
"Ljava/sql/Timestamp;", // Calls OsConstants.initConstants.
"Ljava/util/Date;", // Calls Date.<init> -> System.currentTimeMillis -> OsConstants.initConstants.
"Ljava/util/ListResourceBundle;", // Calls OsConstants.initConstants.
"Ljava/util/Locale;", // Calls System.getProperty -> OsConstants.initConstants.
"Ljava/util/PropertyResourceBundle;", // Calls OsConstants.initConstants.
"Ljava/util/ResourceBundle;", // Calls OsConstants.initConstants.
"Ljava/util/ResourceBundle$MissingBundle;", // Calls OsConstants.initConstants.
"Ljava/util/Scanner;", // regex.Pattern.compileImpl.
"Ljava/util/SimpleTimeZone;", // Sub-class of TimeZone.
"Ljava/util/TimeZone;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Ljava/util/concurrent/ConcurrentHashMap;", // Calls Runtime.getRuntime().availableProcessors().
"Ljava/util/concurrent/ConcurrentHashMap$Segment;", // Calls Runtime.getRuntime().availableProcessors().
"Ljava/util/concurrent/ConcurrentSkipListMap;", // Calls Random() -> OsConstants.initConstants.
"Ljava/util/concurrent/Exchanger;", // Calls Runtime.getRuntime().availableProcessors().
"Ljava/util/concurrent/ForkJoinPool;", // Makes a thread pool ..-> calls OsConstants.initConstants.
"Ljava/util/concurrent/LinkedTransferQueue;", // Calls Runtime.getRuntime().availableProcessors().
"Ljava/util/concurrent/Phaser;", // Calls Runtime.getRuntime().availableProcessors().
"Ljava/util/concurrent/ScheduledThreadPoolExecutor;", // Calls AtomicLong.VMSupportsCS8()
"Ljava/util/concurrent/SynchronousQueue;", // Calls Runtime.getRuntime().availableProcessors().
"Ljava/util/concurrent/atomic/AtomicLong;", // Calls AtomicLong.VMSupportsCS8()
"Ljava/util/logging/LogManager;", // Calls System.getProperty -> OsConstants.initConstants.
"Ljava/util/prefs/AbstractPreferences;", // Calls OsConstants.initConstants.
"Ljava/util/prefs/FilePreferencesImpl;", // Calls OsConstants.initConstants.
"Ljava/util/prefs/FilePreferencesFactoryImpl;", // Calls OsConstants.initConstants.
"Ljava/util/prefs/Preferences;", // Calls OsConstants.initConstants.
"Ljavax/crypto/KeyAgreement;", // Calls OsConstants.initConstants.
"Ljavax/crypto/KeyGenerator;", // Calls OsConstants.initConstants.
"Ljavax/security/cert/X509Certificate;", // Calls VMClassLoader.getBootClassPathSize.
"Ljavax/security/cert/X509Certificate$1;", // Calls VMClassLoader.getBootClassPathSize.
"Ljavax/microedition/khronos/egl/EGL10;", // Requires EGLContext.
"Ljavax/microedition/khronos/egl/EGLContext;", // Requires com.google.android.gles_jni.EGLImpl.
"Ljavax/xml/datatype/DatatypeConstants;", // Calls OsConstants.initConstants.
"Ljavax/xml/datatype/FactoryFinder;", // Calls OsConstants.initConstants.
"Ljavax/xml/namespace/QName;", // Calls OsConstants.initConstants.
"Ljavax/xml/validation/SchemaFactoryFinder;", // Calls OsConstants.initConstants.
"Ljavax/xml/xpath/XPathConstants;", // Calls OsConstants.initConstants.
"Ljavax/xml/xpath/XPathFactoryFinder;", // Calls OsConstants.initConstants.
"Llibcore/icu/LocaleData;", // Requires java.util.Locale.
"Llibcore/icu/TimeZoneNames;", // Requires java.util.TimeZone.
"Llibcore/io/IoUtils;", // Calls Random.<init> -> System.currentTimeMillis -> FileDescriptor -> OsConstants.initConstants.
"Llibcore/io/OsConstants;", // Platform specific.
"Llibcore/net/MimeUtils;", // Calls libcore.net.MimeUtils.getContentTypesPropertiesStream -> System.getProperty.
"Llibcore/reflect/Types;", // Calls OsConstants.initConstants.
"Llibcore/util/ZoneInfo;", // Sub-class of TimeZone.
"Llibcore/util/ZoneInfoDB;", // Calls System.getenv -> OsConstants.initConstants.
"Lorg/apache/commons/logging/LogFactory;", // Calls System.getProperty.
"Lorg/apache/commons/logging/impl/LogFactoryImpl;", // Calls OsConstants.initConstants.
"Lorg/apache/harmony/security/fortress/Services;", // Calls ClassLoader.getSystemClassLoader -> System.getProperty.
"Lorg/apache/harmony/security/provider/cert/X509CertFactoryImpl;", // Requires java.nio.charsets.Charsets.
"Lorg/apache/harmony/security/provider/crypto/RandomBitsSupplier;", // Requires java.io.File.
"Lorg/apache/harmony/security/utils/AlgNameMapper;", // Requires java.util.Locale.
"Lorg/apache/harmony/security/pkcs10/CertificationRequest;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/pkcs10/CertificationRequestInfo;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/pkcs7/AuthenticatedAttributes;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/pkcs7/SignedData;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/pkcs7/SignerInfo;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/pkcs8/PrivateKeyInfo;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl;", // Calls OsConstants.initConstants.
"Lorg/apache/harmony/security/x501/AttributeTypeAndValue;", // Calls IntegralToString.convertInt -> Thread.currentThread.
"Lorg/apache/harmony/security/x501/DirectoryString;", // Requires BigInteger.
"Lorg/apache/harmony/security/x501/Name;", // Requires org.apache.harmony.security.x501.AttributeTypeAndValue.
"Lorg/apache/harmony/security/x509/AccessDescription;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/x509/AuthorityKeyIdentifier;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/x509/CRLDistributionPoints;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/x509/Certificate;", // Requires org.apache.harmony.security.x509.TBSCertificate.
"Lorg/apache/harmony/security/x509/CertificateIssuer;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/x509/CertificateList;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/x509/DistributionPoint;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/x509/DistributionPointName;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/x509/EDIPartyName;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lorg/apache/harmony/security/x509/GeneralName;", // Requires org.apache.harmony.security.x501.Name.
"Lorg/apache/harmony/security/x509/GeneralNames;", // Requires GeneralName.
"Lorg/apache/harmony/security/x509/GeneralSubtree;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/x509/GeneralSubtrees;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/x509/InfoAccessSyntax;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/x509/IssuingDistributionPoint;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/x509/NameConstraints;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/x509/TBSCertList$RevokedCertificate;", // Calls NativeBN.BN_new().
"Lorg/apache/harmony/security/x509/TBSCertList;", // Calls Thread.currentThread.
"Lorg/apache/harmony/security/x509/TBSCertificate;", // Requires org.apache.harmony.security.x501.Name.
"Lorg/apache/harmony/security/x509/Time;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lorg/apache/harmony/security/x509/Validity;", // Requires x509.Time.
"Lorg/apache/harmony/security/x509/tsp/TSTInfo;", // Calls Thread.currentThread.
"Lorg/apache/harmony/xml/ExpatParser;", // Calls native ExpatParser.staticInitialize.
"Lorg/apache/harmony/xml/ExpatParser$EntityParser;", // Calls ExpatParser.staticInitialize.
"Lorg/apache/http/conn/params/ConnRouteParams;", // Requires java.util.Locale.
"Lorg/apache/http/conn/ssl/SSLSocketFactory;", // Calls java.security.Security.getProperty.
"Lorg/apache/http/conn/util/InetAddressUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
};
static void InitializeClass(const ParallelCompilationManager* manager, size_t class_def_index)
LOCKS_EXCLUDED(Locks::mutator_lock_) {
ATRACE_CALL();
const DexFile::ClassDef& class_def = manager->GetDexFile()->GetClassDef(class_def_index);
ScopedObjectAccess soa(Thread::Current());
mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader());
const char* descriptor = manager->GetDexFile()->GetClassDescriptor(class_def);
mirror::Class* klass = manager->GetClassLinker()->FindClass(descriptor, class_loader);
if (klass != NULL) {
// Only try to initialize classes that were successfully verified.
if (klass->IsVerified()) {
// Attempt to initialize the class but bail if we either need to initialize the super-class
// or static fields.
manager->GetClassLinker()->EnsureInitialized(klass, false, false);
if (!klass->IsInitialized()) {
// We don't want non-trivial class initialization occurring on multiple threads due to
// deadlock problems. For example, a parent class is initialized (holding its lock) that
// refers to a sub-class in its static/class initializer causing it to try to acquire the
// sub-class' lock. While on a second thread the sub-class is initialized (holding its lock)
// after first initializing its parents, whose locks are acquired. This leads to a
// parent-to-child and a child-to-parent lock ordering and consequent potential deadlock.
// We need to use an ObjectLock due to potential suspension in the interpreting code. Rather
// than use a special Object for the purpose we use the Class of java.lang.Class.
ObjectLock lock(soa.Self(), klass->GetClass());
// Attempt to initialize allowing initialization of parent classes but still not static
// fields.
manager->GetClassLinker()->EnsureInitialized(klass, false, true);
if (!klass->IsInitialized()) {
// We need to initialize static fields, we only do this for image classes that aren't
// black listed or marked with the $NoPreloadHolder.
bool can_init_static_fields = manager->GetCompiler()->IsImage() &&
manager->GetCompiler()->IsImageClass(descriptor);
if (can_init_static_fields) {
// NoPreloadHolder inner class implies this should not be initialized early.
bool is_black_listed = StringPiece(descriptor).ends_with("$NoPreloadHolder;");
if (!is_black_listed) {
for (size_t i = 0; i < arraysize(class_initializer_black_list); ++i) {
if (StringPiece(descriptor) == class_initializer_black_list[i]) {
is_black_listed = true;
break;
}
}
}
if (!is_black_listed) {
VLOG(compiler) << "Initializing: " << descriptor;
if (StringPiece(descriptor) == "Ljava/lang/Void;") {
// Hand initialize j.l.Void to avoid Dex file operations in un-started runtime.
ObjectLock lock(soa.Self(), klass);
mirror::ObjectArray<mirror::ArtField>* fields = klass->GetSFields();
CHECK_EQ(fields->GetLength(), 1);
fields->Get(0)->SetObj(klass, manager->GetClassLinker()->FindPrimitiveClass('V'));
klass->SetStatus(mirror::Class::kStatusInitialized, soa.Self());
} else {
manager->GetClassLinker()->EnsureInitialized(klass, true, true);
}
}
}
}
soa.Self()->AssertNoPendingException();
}
// If successfully initialized place in SSB array.
if (klass->IsInitialized()) {
klass->GetDexCache()->GetInitializedStaticStorage()->Set(klass->GetDexTypeIndex(), klass);
}
}
// Record the final class status if necessary.
ClassReference ref(manager->GetDexFile(), class_def_index);
manager->GetCompiler()->RecordClassStatus(ref, klass->GetStatus());
}
// Clear any class not found or verification exceptions.
soa.Self()->ClearException();
}
void CompilerDriver::InitializeClasses(jobject jni_class_loader, const DexFile& dex_file,
ThreadPool& thread_pool, base::TimingLogger& timings) {
// TODO: strdup memory leak.
timings.NewSplit(strdup(("InitializeNoClinit " + dex_file.GetLocation()).c_str()));
#ifndef NDEBUG
// Sanity check blacklist descriptors.
if (IsImage()) {
for (size_t i = 0; i < arraysize(class_initializer_black_list); ++i) {
const char* descriptor = class_initializer_black_list[i];
CHECK(IsValidDescriptor(descriptor)) << descriptor;
}
}
#endif
ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
ParallelCompilationManager context(class_linker, jni_class_loader, this, &dex_file, thread_pool);
context.ForAll(0, dex_file.NumClassDefs(), InitializeClass, thread_count_);
}
void CompilerDriver::InitializeClasses(jobject class_loader,
const std::vector<const DexFile*>& dex_files,
ThreadPool& thread_pool, base::TimingLogger& timings) {
for (size_t i = 0; i != dex_files.size(); ++i) {
const DexFile* dex_file = dex_files[i];
CHECK(dex_file != NULL);
InitializeClasses(class_loader, *dex_file, thread_pool, timings);
}
}
void CompilerDriver::Compile(jobject class_loader, const std::vector<const DexFile*>& dex_files,
ThreadPool& thread_pool, base::TimingLogger& timings) {
for (size_t i = 0; i != dex_files.size(); ++i) {
const DexFile* dex_file = dex_files[i];
CHECK(dex_file != NULL);
CompileDexFile(class_loader, *dex_file, thread_pool, timings);
}
}
void CompilerDriver::CompileClass(const ParallelCompilationManager* manager, size_t class_def_index) {
ATRACE_CALL();
jobject jclass_loader = manager->GetClassLoader();
const DexFile& dex_file = *manager->GetDexFile();
const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index);
ClassLinker* class_linker = manager->GetClassLinker();
if (SkipClass(class_linker, jclass_loader, dex_file, class_def)) {
return;
}
ClassReference ref(&dex_file, class_def_index);
// Skip compiling classes with generic verifier failures since they will still fail at runtime
if (verifier::MethodVerifier::IsClassRejected(ref)) {
return;
}
const byte* class_data = dex_file.GetClassData(class_def);
if (class_data == NULL) {
// empty class, probably a marker interface
return;
}
// Can we run DEX-to-DEX compiler on this class ?
DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile;
{
ScopedObjectAccess soa(Thread::Current());
mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(jclass_loader);
dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, dex_file, class_def);
}
ClassDataItemIterator it(dex_file, class_data);
// Skip fields
while (it.HasNextStaticField()) {
it.Next();
}
while (it.HasNextInstanceField()) {
it.Next();
}
CompilerDriver* driver = manager->GetCompiler();
// Compile direct methods
int64_t previous_direct_method_idx = -1;
while (it.HasNextDirectMethod()) {
uint32_t method_idx = it.GetMemberIndex();
if (method_idx == previous_direct_method_idx) {
// smali can create dex files with two encoded_methods sharing the same method_idx
// http://code.google.com/p/smali/issues/detail?id=119
it.Next();
continue;
}
previous_direct_method_idx = method_idx;
driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(),
it.GetMethodInvokeType(class_def), class_def_index,
method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level);
it.Next();
}
// Compile virtual methods
int64_t previous_virtual_method_idx = -1;
while (it.HasNextVirtualMethod()) {
uint32_t method_idx = it.GetMemberIndex();
if (method_idx == previous_virtual_method_idx) {
// smali can create dex files with two encoded_methods sharing the same method_idx
// http://code.google.com/p/smali/issues/detail?id=119
it.Next();
continue;
}
previous_virtual_method_idx = method_idx;
driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(),
it.GetMethodInvokeType(class_def), class_def_index,
method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level);
it.Next();
}
DCHECK(!it.HasNext());
}
void CompilerDriver::CompileDexFile(jobject class_loader, const DexFile& dex_file,
ThreadPool& thread_pool, base::TimingLogger& timings) {
// TODO: strdup memory leak.
timings.NewSplit(strdup(("Compile " + dex_file.GetLocation()).c_str()));
ParallelCompilationManager context(Runtime::Current()->GetClassLinker(), class_loader, this,
&dex_file, thread_pool);
context.ForAll(0, dex_file.NumClassDefs(), CompilerDriver::CompileClass, thread_count_);
}
void CompilerDriver::CompileMethod(const DexFile::CodeItem* code_item, uint32_t access_flags,
InvokeType invoke_type, uint32_t class_def_idx,
uint32_t method_idx, jobject class_loader,
const DexFile& dex_file,
DexToDexCompilationLevel dex_to_dex_compilation_level) {
CompiledMethod* compiled_method = NULL;
uint64_t start_ns = NanoTime();
if ((access_flags & kAccNative) != 0) {
compiled_method = (*jni_compiler_)(*this, access_flags, method_idx, dex_file);
CHECK(compiled_method != NULL);
} else if ((access_flags & kAccAbstract) != 0) {
} else {
MethodReference method_ref(&dex_file, method_idx);
bool compile = verifier::MethodVerifier::IsCandidateForCompilation(method_ref, access_flags);
if (compile) {
CompilerFn compiler = compiler_;
#ifdef ART_SEA_IR_MODE
bool use_sea = Runtime::Current()->IsSeaIRMode();
use_sea = use_sea &&
(std::string::npos != PrettyMethod(method_idx, dex_file).find("fibonacci"));
if (use_sea) {
compiler = sea_ir_compiler_;
LOG(INFO) << "Using SEA IR to compile..." << std::endl;
}
#endif
// NOTE: if compiler declines to compile this method, it will return NULL.
compiled_method = (*compiler)(*this, code_item, access_flags, invoke_type, class_def_idx,
method_idx, class_loader, dex_file);
} else if (dex_to_dex_compilation_level != kDontDexToDexCompile) {
// TODO: add a mode to disable DEX-to-DEX compilation ?
(*dex_to_dex_compiler_)(*this, code_item, access_flags,
invoke_type, class_def_idx,
method_idx, class_loader, dex_file,
dex_to_dex_compilation_level);
}
}
uint64_t duration_ns = NanoTime() - start_ns;
#ifdef ART_USE_PORTABLE_COMPILER
const uint64_t kWarnMilliSeconds = 1000;
#else
const uint64_t kWarnMilliSeconds = 100;
#endif
if (duration_ns > MsToNs(kWarnMilliSeconds)) {
LOG(WARNING) << "Compilation of " << PrettyMethod(method_idx, dex_file)
<< " took " << PrettyDuration(duration_ns);
}
Thread* self = Thread::Current();
if (compiled_method != NULL) {
MethodReference ref(&dex_file, method_idx);
DCHECK(GetCompiledMethod(ref) == NULL) << PrettyMethod(method_idx, dex_file);
{
MutexLock mu(self, compiled_methods_lock_);
compiled_methods_.Put(ref, compiled_method);
}
DCHECK(GetCompiledMethod(ref) != NULL) << PrettyMethod(method_idx, dex_file);
}
if (self->IsExceptionPending()) {
ScopedObjectAccess soa(self);
LOG(FATAL) << "Unexpected exception compiling: " << PrettyMethod(method_idx, dex_file) << "\n"
<< self->GetException(NULL)->Dump();
}
}
CompiledClass* CompilerDriver::GetCompiledClass(ClassReference ref) const {
MutexLock mu(Thread::Current(), compiled_classes_lock_);
ClassTable::const_iterator it = compiled_classes_.find(ref);
if (it == compiled_classes_.end()) {
return NULL;
}
CHECK(it->second != NULL);
return it->second;
}
void CompilerDriver::RecordClassStatus(ClassReference ref, mirror::Class::Status status) {
MutexLock mu(Thread::Current(), compiled_classes_lock_);
auto it = compiled_classes_.find(ref);
if (it == compiled_classes_.end() || it->second->GetStatus() != status) {
// An entry doesn't exist or the status is lower than the new status.
if (it != compiled_classes_.end()) {
CHECK_GT(status, it->second->GetStatus());
delete it->second;
}
switch (status) {
case mirror::Class::kStatusNotReady:
case mirror::Class::kStatusError:
case mirror::Class::kStatusRetryVerificationAtRuntime:
case mirror::Class::kStatusVerified:
case mirror::Class::kStatusInitialized:
break; // Expected states.
default:
LOG(FATAL) << "Unexpected class status for class "
<< PrettyDescriptor(ref.first->GetClassDescriptor(ref.first->GetClassDef(ref.second)))
<< " of " << status;
}
CompiledClass* compiled_class = new CompiledClass(status);
compiled_classes_.Overwrite(ref, compiled_class);
}
}
CompiledMethod* CompilerDriver::GetCompiledMethod(MethodReference ref) const {
MutexLock mu(Thread::Current(), compiled_methods_lock_);
MethodTable::const_iterator it = compiled_methods_.find(ref);
if (it == compiled_methods_.end()) {
return NULL;
}
CHECK(it->second != NULL);
return it->second;
}
void CompilerDriver::SetBitcodeFileName(std::string const& filename) {
typedef void (*SetBitcodeFileNameFn)(CompilerDriver&, std::string const&);
SetBitcodeFileNameFn set_bitcode_file_name =
reinterpret_cast<SetBitcodeFileNameFn>(compilerLLVMSetBitcodeFileName);
set_bitcode_file_name(*this, filename);
}
void CompilerDriver::AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file,
size_t class_def_index) {
WriterMutexLock mu(self, freezing_constructor_lock_);
freezing_constructor_classes_.insert(ClassReference(dex_file, class_def_index));
}
bool CompilerDriver::RequiresConstructorBarrier(Thread* self, const DexFile* dex_file,
size_t class_def_index) {
ReaderMutexLock mu(self, freezing_constructor_lock_);
return freezing_constructor_classes_.count(ClassReference(dex_file, class_def_index)) != 0;
}
bool CompilerDriver::WriteElf(const std::string& android_root,
bool is_host,
const std::vector<const art::DexFile*>& dex_files,
OatWriter& oat_writer,
art::File* file)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
#if defined(ART_USE_PORTABLE_COMPILER)
return art::ElfWriterMclinker::Create(file, oat_writer, dex_files, android_root, is_host, *this);
#else
return art::ElfWriterQuick::Create(file, oat_writer, dex_files,</