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android / platform / art / b0682d5 / . / src / compiler / driver / compiler_driver.cc
blob: d53d60cb497ebaf10d6a209c907c34a73aa0f616 [file] [log] [blame]
/*
* 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"
#include <vector>
#include <dlfcn.h>
#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 "oat_file.h"
#include "oat/runtime/stub.h"
#include "object_utils.h"
#include "runtime.h"
#include "gc/card_table-inl.h"
#include "gc/space.h"
#include "mirror/class_loader.h"
#include "mirror/class-inl.h"
#include "mirror/dex_cache.h"
#include "mirror/field-inl.h"
#include "mirror/abstract_method-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 "verifier/method_verifier.h"
#if defined(__APPLE__)
#include <mach-o/dyld.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;
}
LOG(INFO) << 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) {
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(type_based_devirtualization_,virtual_made_direct_[kInterface] + virtual_made_direct_[kVirtual]
- type_based_devirtualization_, "sharpened calls 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_++;
}
void PreciseTypeDevirtualization() {
STATS_LOCK();
type_based_devirtualization_++;
}
void ResolvedMethod(InvokeType type) {
DCHECK_LE(type, kMaxInvokeType);
STATS_LOCK();
resolved_methods_[type]++;
}
void UnresolvedMethod(InvokeType type) {
DCHECK_LE(type, kMaxInvokeType);
STATS_LOCK();
unresolved_methods_[type]++;
}
void VirtualMadeDirect(InvokeType type) {
DCHECK_LE(type, kMaxInvokeType);
STATS_LOCK();
virtual_made_direct_[type]++;
}
void DirectCallsToBoot(InvokeType type) {
DCHECK_LE(type, kMaxInvokeType);
STATS_LOCK();
direct_calls_to_boot_[type]++;
}
void DirectMethodsToBoot(InvokeType type) {
DCHECK_LE(type, kMaxInvokeType);
STATS_LOCK();
direct_methods_to_boot_[type]++;
}
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];
DISALLOW_COPY_AND_ASSIGN(AOTCompilationStats);
};
static std::string MakeCompilerSoName(CompilerBackend compiler_backend) {
// Bad things happen if we pull in the libartd-compiler to a libart dex2oat or vice versa,
// because we end up with both libart and libartd in the same address space!
const char* suffix = (kIsDebugBuild ? "d" : "");
// Work out the filename for the compiler library.
std::string library_name(StringPrintf("art%s-compiler", suffix));
std::string filename(StringPrintf(OS_SHARED_LIB_FORMAT_STR, library_name.c_str()));
#if defined(__APPLE__)
// On Linux, dex2oat will have been built with an RPATH of $ORIGIN/../lib, so dlopen(3) will find
// the .so by itself. On Mac OS, there isn't really an equivalent, so we have to manually do the
// same work.
uint32_t executable_path_length = 0;
_NSGetExecutablePath(NULL, &executable_path_length);
std::string path(executable_path_length, static_cast<char>(0));
CHECK_EQ(_NSGetExecutablePath(&path[0], &executable_path_length), 0);
// Strip the "/dex2oat".
size_t last_slash = path.find_last_of('/');
CHECK_NE(last_slash, std::string::npos) << path;
path.resize(last_slash);
// Strip the "/bin".
last_slash = path.find_last_of('/');
path.resize(last_slash);
filename = path + "/lib/" + filename;
#endif
return filename;
}
template<typename Fn>
static Fn FindFunction(const std::string& compiler_so_name, void* library, const char* name) {
Fn fn = reinterpret_cast<Fn>(dlsym(library, name));
if (fn == NULL) {
LOG(FATAL) << "Couldn't find \"" << name << "\" in compiler library " << compiler_so_name << ": " << dlerror();
}
VLOG(compiler) << "Found \"" << name << "\" at " << reinterpret_cast<void*>(fn);
return fn;
}
CompilerDriver::CompilerDriver(CompilerBackend compiler_backend, InstructionSet instruction_set,
bool image, size_t thread_count, bool support_debugging, bool light_mode,
const std::set<std::string>* image_classes,
bool dump_stats, bool dump_timings)
: 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),
thread_count_(thread_count),
support_debugging_(support_debugging),
light_mode_(light_mode),
start_ns_(0),
stats_(new AOTCompilationStats),
dump_stats_(dump_stats),
dump_timings_(dump_timings),
image_classes_(image_classes),
compiler_library_(NULL),
compiler_(NULL),
compiler_context_(NULL),
jni_compiler_(NULL),
compiler_get_method_code_addr_(NULL)
{
std::string compiler_so_name(MakeCompilerSoName(compiler_backend_));
compiler_library_ = dlopen(compiler_so_name.c_str(), RTLD_LAZY);
if (compiler_library_ == NULL) {
LOG(FATAL) << "Couldn't find compiler library " << compiler_so_name << ": " << dlerror();
}
VLOG(compiler) << "dlopen(\"" << compiler_so_name << "\", RTLD_LAZY) returned " << compiler_library_;
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 = FindFunction<void (*)(CompilerDriver&)>(compiler_so_name,
compiler_library_, "ArtInitCompilerContext");
compiler_ = FindFunction<CompilerFn>(compiler_so_name, compiler_library_, "ArtCompileMethod");
} else {
init_compiler_context = FindFunction<void (*)(CompilerDriver&)>(compiler_so_name,
compiler_library_, "ArtInitQuickCompilerContext");
compiler_ = FindFunction<CompilerFn>(compiler_so_name, compiler_library_, "ArtQuickCompileMethod");
}
init_compiler_context(*this);
if (compiler_backend_ == kPortable) {
jni_compiler_ = FindFunction<JniCompilerFn>(compiler_so_name, compiler_library_, "ArtLLVMJniCompileMethod");
} else {
jni_compiler_ = FindFunction<JniCompilerFn>(compiler_so_name, compiler_library_, "ArtQuickJniCompileMethod");
}
CHECK(!Runtime::Current()->IsStarted());
if (!image_) {
CHECK(image_classes_ == NULL);
}
}
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&);
std::string compiler_so_name(MakeCompilerSoName(compiler_backend_));
UninitCompilerContextFn uninit_compiler_context;
// Uninitialize compiler_context_
// TODO: rework to combine initialization/uninitialization
if (compiler_backend_ == kPortable) {
uninit_compiler_context = FindFunction<void (*)(CompilerDriver&)>(compiler_so_name,
compiler_library_, "ArtUnInitCompilerContext");
} else {
uninit_compiler_context = FindFunction<void (*)(CompilerDriver&)>(compiler_so_name,
compiler_library_, "ArtUnInitQuickCompilerContext");
}
uninit_compiler_context(*this);
#if 0
if (compiler_library_ != NULL) {
VLOG(compiler) << "dlclose(" << compiler_library_ << ")";
/*
* FIXME: Temporary workaround
* Apparently, llvm is adding dctors to atexit, but if we unload
* the library here the code will no longer be around at exit time
* and we die a flaming death in __cxa_finalize(). Apparently, some
* dlclose() implementations will scan the atexit list on unload and
* handle any associated with the soon-to-be-unloaded library.
* However, this is not required by POSIX and we don't do it.
* See: http://b/issue?id=4998315
* What's the right thing to do here?
*
* This has now been completely disabled because mclinker was
* closing stdout on exit, which was affecting both quick and
* portable.
*/
dlclose(compiler_library_);
}
#endif
}
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;
}
mirror::ByteArray* CompilerDriver::CreateJniDlsymLookupStub(InstructionSet instruction_set) {
switch (instruction_set) {
case kArm:
case kThumb2:
return arm::CreateJniDlsymLookupStub();
case kMips:
return mips::CreateJniDlsymLookupStub();
case kX86:
return x86::CreateJniDlsymLookupStub();
default:
LOG(FATAL) << "Unknown InstructionSet: " << instruction_set;
return NULL;
}
}
mirror::ByteArray* CompilerDriver::CreateAbstractMethodErrorStub(InstructionSet instruction_set) {
switch (instruction_set) {
case kArm:
case kThumb2:
return arm::CreateAbstractMethodErrorStub();
case kMips:
return mips::CreateAbstractMethodErrorStub();
case kX86:
return x86::CreateAbstractMethodErrorStub();
default:
LOG(FATAL) << "Unknown InstructionSet: " << instruction_set;
return NULL;
}
}
void CompilerDriver::CompileAll(jobject class_loader,
const std::vector<const DexFile*>& dex_files) {
DCHECK(!Runtime::Current()->IsStarted());
UniquePtr<ThreadPool> thread_pool(new ThreadPool(thread_count_));
TimingLogger timings("compiler", false);
PreCompile(class_loader, dex_files, *thread_pool.get(), timings);
Compile(class_loader, dex_files, *thread_pool.get(), timings);
if (dump_timings_ && timings.GetTotalNs() > MsToNs(1000)) {
LOG(INFO) << Dumpable<TimingLogger>(timings);
}
if (dump_stats_) {
stats_->Dump();
}
}
void CompilerDriver::CompileOne(const mirror::AbstractMethod* method) {
DCHECK(!Runtime::Current()->IsStarted());
Thread* self = Thread::Current();
jobject class_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()));
class_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(1U));
TimingLogger timings("CompileOne", false);
PreCompile(class_loader, dex_files, *thread_pool.get(), timings);
uint32_t method_idx = method->GetDexMethodIndex();
const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset());
CompileMethod(code_item, method->GetAccessFlags(), method->GetInvokeType(),
class_def_idx, method_idx, class_loader, *dex_file);
self->GetJniEnv()->DeleteGlobalRef(class_loader);
self->TransitionFromSuspendedToRunnable();
}
void CompilerDriver::Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files,
ThreadPool& thread_pool, 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, TimingLogger& 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);
}
bool CompilerDriver::IsImageClass(const std::string& descriptor) const {
if (image_classes_ == NULL) {
return true;
}
return image_classes_->find(descriptor) != image_classes_->end();
}
void CompilerDriver::RecordClassStatus(ClassReference ref, CompiledClass* compiled_class) {
MutexLock mu(Thread::Current(), CompilerDriver::compiled_classes_lock_);
compiled_classes_.Put(ref, compiled_class);
}
bool CompilerDriver::CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file,
uint32_t type_idx) {
ScopedObjectAccess soa(Thread::Current());
mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file);
if (!IsImage()) {
stats_->TypeNotInDexCache();
return false;
}
mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx);
if (resolved_class == NULL) {
stats_->TypeNotInDexCache();
return false;
}
bool result = IsImageClass(ClassHelper(resolved_class).GetDescriptor());
if (result) {
stats_->TypeInDexCache();
} else {
stats_->TypeNotInDexCache();
}
return result;
}
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) {
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 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();
} 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,
const DexCompilationUnit* mUnit)
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());
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::Field* 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::AbstractMethod* 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::Field* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx);
if (resolved_field != NULL && !resolved_field->IsStatic()) {
mirror::Class* referrer_class = ComputeCompilingMethodsClass(soa, 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::Field* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx);
if (resolved_field != NULL && resolved_field->IsStatic()) {
mirror::Class* referrer_class = ComputeCompilingMethodsClass(soa, 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.
std::string descriptor(FieldHelper(resolved_field).GetDeclaringClassDescriptor());
const DexFile::StringId* string_id =
mUnit->GetDexFile()->FindStringId(descriptor);
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::AbstractMethod* method,
uintptr_t& direct_code,
uintptr_t& direct_method) {
// 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 (sharp_type != kInterface) { // Interfaces always go via a trampoline.
stats_->DirectCallsToBoot(type);
}
stats_->DirectMethodsToBoot(type);
bool compiling_boot = Runtime::Current()->GetHeap()->GetSpaces().size() == 1;
if (compiling_boot) {
const bool kSupportBootImageFixup = true;
if (kSupportBootImageFixup) {
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)->IsImageSpace()) {
direct_method = reinterpret_cast<uintptr_t>(method);
}
direct_code = reinterpret_cast<uintptr_t>(method->GetCode());
}
}
bool CompilerDriver::ComputeInvokeInfo(uint32_t method_idx,const uint32_t dex_pc,
const DexCompilationUnit* mUnit, InvokeType& type,
int& vtable_idx, uintptr_t& direct_code,
uintptr_t& direct_method) {
ScopedObjectAccess soa(Thread::Current());
const bool kEnableVerifierBasedSharpening = true;
const CompilerDriver::MethodReference ref_caller(mUnit->GetDexFile(), mUnit->GetDexMethodIndex());
const CompilerDriver::MethodReference* ref_sharpen = verifier::MethodVerifier::GetDevirtMap(ref_caller, dex_pc);
bool can_devirtualize = (dex_pc != art::kDexPCNotReady) && (ref_sharpen != NULL);
vtable_idx = -1;
direct_code = 0;
direct_method = 0;
mirror::AbstractMethod* resolved_method =
ComputeMethodReferencedFromCompilingMethod(soa, mUnit, method_idx, 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, mUnit);
bool icce = resolved_method->CheckIncompatibleClassChange(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.
const DexFile& dex_file = *referrer_class->GetDexCache()->GetDexFile();
methods_class =
mUnit->GetClassLinker()->ResolveType(dex_file,
dex_file.GetMethodId(method_idx).class_idx_,
referrer_class);
}
if (referrer_class->CanAccess(methods_class) &&
referrer_class->CanAccessMember(methods_class, resolved_method->GetAccessFlags())) {
vtable_idx = resolved_method->GetMethodIndex();
const bool kEnableSharpening = true;
// Sharpen a virtual call into a direct call when the target is known.
bool can_sharpen = type == kVirtual && (resolved_method->IsFinal() ||
methods_class->IsFinal());
// Ensure the vtable index will be correct to dispatch in the vtable of the super class.
can_sharpen = can_sharpen || (type == kSuper && referrer_class != methods_class &&
referrer_class->IsSubClass(methods_class) &&
vtable_idx < methods_class->GetVTable()->GetLength() &&
methods_class->GetVTable()->Get(vtable_idx) == resolved_method);
if (kEnableSharpening && can_sharpen) {
stats_->ResolvedMethod(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(method_idx) == resolved_method)
<< PrettyMethod(resolved_method);
stats_->VirtualMadeDirect(type);
GetCodeAndMethodForDirectCall(type, kDirect, referrer_class, resolved_method,
direct_code, direct_method);
type = kDirect;
return true;
} else if(can_devirtualize && kEnableSharpening && kEnableVerifierBasedSharpening) {
// If traditional sharpening fails, try the sharpening based on type information (Devirtualization)
mirror::DexCache* dex_cache = mUnit->GetClassLinker()->FindDexCache(*ref_sharpen->first);
mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader());
mirror::AbstractMethod* concrete_method = mUnit->GetClassLinker()->ResolveMethod(
*ref_sharpen->first, ref_sharpen->second, dex_cache, class_loader, NULL, kVirtual);
CHECK(concrete_method != NULL);
CHECK(!concrete_method->IsAbstract());
// TODO: fix breakage in image patching to be able to devirtualize cases with different
// resolved and concrete methods.
if(resolved_method == concrete_method) {
GetCodeAndMethodForDirectCall(type, kDirect, referrer_class, concrete_method, direct_code, direct_method);
type = kDirect;
stats_->VirtualMadeDirect(type);
stats_->PreciseTypeDevirtualization();
}
stats_->ResolvedMethod(type);
return true;
}
else if (type == kSuper) {
// Unsharpened super calls are suspicious so go slow-path.
} else {
stats_->ResolvedMethod(type);
GetCodeAndMethodForDirectCall(type, type, referrer_class, resolved_method,
direct_code, direct_method);
return true;
}
}
}
}
// Clean up any exception left by method/type resolution
if (soa.Self()->IsExceptionPending()) {
soa.Self()->ClearException();
}
stats_->UnresolvedMethod(type);
return false; // Incomplete knowledge needs slow path.
}
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)
: 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);
for (size_t i = 0; i < work_units; ++i) {
closures[i] = new ForAllClosure(this, begin + i, end, callback, work_units);
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);
}
private:
class ForAllClosure : public Task {
public:
ForAllClosure(ParallelCompilationManager* manager, size_t begin, size_t end, Callback* callback,
size_t stripe)
: manager_(manager),
begin_(begin),
end_(end),
callback_(callback),
stripe_(stripe)
{
}
virtual void Run(Thread* self) {
for (size_t i = begin_; i < end_; i += stripe_) {
callback_(manager_, i);
self->AssertNoPendingException();
}
}
virtual void Finalize() {
delete this;
}
private:
const ParallelCompilationManager* const manager_;
const size_t begin_;
const size_t end_;
const Callback* const callback_;
const size_t stripe_;
};
ClassLinker* const class_linker_;
const jobject class_loader_;
CompilerDriver* const compiler_;
const DexFile* const dex_file_;
ThreadPool* const thread_pool_;
};
// 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(mirror::ClassLoader* class_loader,
const DexFile& dex_file,
const DexFile::ClassDef& class_def)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
if (class_loader == NULL) {
return false;
}
const char* descriptor = dex_file.GetClassDescriptor(class_def);
ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
mirror::Class* klass = class_linker->FindClass(descriptor, NULL);
if (klass == NULL) {
Thread* self = Thread::Current();
CHECK(self->IsExceptionPending());
self->ClearException();
return false;
}
return true;
}
static void ResolveClassFieldsAndMethods(const ParallelCompilationManager* manager, size_t class_def_index)
LOCKS_EXCLUDED(Locks::mutator_lock_) {
ScopedObjectAccess soa(Thread::Current());
mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader());
const DexFile& dex_file = *manager->GetDexFile();
// 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_loader, dex_file, class_def)) {
return;
}
// 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
return;
}
Thread* self = Thread::Current();
ClassLinker* class_linker = manager->GetClassLinker();
mirror::DexCache* dex_cache = class_linker->FindDexCache(dex_file);
ClassDataItemIterator it(dex_file, class_data);
while (it.HasNextStaticField()) {
mirror::Field* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), dex_cache,
class_loader, true);
if (field == NULL) {
CHECK(self->IsExceptionPending());
self->ClearException();
}
it.Next();
}
// 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.
bool requires_constructor_barrier = false;
while (it.HasNextInstanceField()) {
if ((it.GetMemberAccessFlags() & kAccFinal) != 0) {
requires_constructor_barrier = true;
}
mirror::Field* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), dex_cache,
class_loader, false);
if (field == NULL) {
CHECK(self->IsExceptionPending());
self->ClearException();
}
it.Next();
}
if (requires_constructor_barrier) {
manager->GetCompiler()->AddRequiresConstructorBarrier(soa.Self(), manager->GetDexFile(),
class_def_index);
}
while (it.HasNextDirectMethod()) {
mirror::AbstractMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(),
dex_cache, class_loader, NULL,
it.GetMethodInvokeType(class_def));
if (method == NULL) {
CHECK(self->IsExceptionPending());
self->ClearException();
}
it.Next();
}
while (it.HasNextVirtualMethod()) {
mirror::AbstractMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(),
dex_cache, class_loader, NULL,
it.GetMethodInvokeType(class_def));
if (method == NULL) {
CHECK(self->IsExceptionPending());
self->ClearException();
}
it.Next();
}
DCHECK(!it.HasNext());
}
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());
Thread::Current()->ClearException();
}
}
void CompilerDriver::ResolveDexFile(jobject class_loader, const DexFile& dex_file,
ThreadPool& thread_pool, 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);
context.ForAll(0, dex_file.NumTypeIds(), ResolveType, thread_count_);
timings.AddSplit("Resolve " + dex_file.GetLocation() + " Types");
context.ForAll(0, dex_file.NumClassDefs(), ResolveClassFieldsAndMethods, thread_count_);
timings.AddSplit("Resolve " + dex_file.GetLocation() + " MethodsAndFields");
}
void CompilerDriver::Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files,
ThreadPool& thread_pool, 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_) {
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;
}
return;
}
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, TimingLogger& timings) {
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_);
timings.AddSplit("Verify " + dex_file.GetLocation());
}
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$1;", // Requires Matrix.
"Landroid/graphics/PixelFormat;", // Calls android.graphics.PixelFormat.nativeClassInit().
"Landroid/graphics/Rect;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/graphics/SurfaceTexture;", // Calls android.graphics.SurfaceTexture.nativeClassInit().
"Landroid/graphics/Typeface;", // Calls android.graphics.Typeface.nativeCreate.
"Landroid/inputmethodservice/ExtractEditText;", // Requires android.widget.TextView.
"Landroid/media/CameraProfile;", // Calls System.loadLibrary.
"Landroid/media/DecoderCapabilities;", // Calls System.loadLibrary.
"Landroid/media/MediaFile;", // Requires DecoderCapabilities.
"Landroid/media/MediaPlayer;", // Calls System.loadLibrary.
"Landroid/media/MediaRecorder;", // Calls System.loadLibrary.
"Landroid/media/MediaScanner;", // Calls System.loadLibrary.
"Landroid/net/NetworkInfo;", // Calls java.util.EnumMap.<init> -> java.lang.Enum.getSharedConstants -> System.identityHashCode.
"Landroid/net/Proxy;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/net/SSLCertificateSocketFactory;", // Requires javax.net.ssl.HttpsURLConnection.
"Landroid/net/Uri;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex.
"Landroid/net/Uri$AbstractHierarchicalUri;", // Requires Uri.
"Landroid/net/Uri$HierarchicalUri;", // Requires Uri.
"Landroid/net/Uri$OpaqueUri;", // Requires Uri.
"Landroid/net/Uri$StringUri;", // Requires Uri.
"Landroid/net/WebAddress;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Landroid/nfc/NdefRecord;", // Calls String.getBytes -> java.nio.charset.Charset.
"Landroid/opengl/EGL14;", // Calls android.opengl.EGL14._nativeClassInit.
"Landroid/opengl/GLES10;", // Calls android.opengl.GLES10._nativeClassInit.
"Landroid/opengl/GLES10Ext;", // Calls android.opengl.GLES10Ext._nativeClassInit.
"Landroid/opengl/GLES11;", // Requires GLES10.
"Landroid/opengl/GLES11Ext;", // Calls android.opengl.GLES11Ext._nativeClassInit.
"Landroid/opengl/GLES20;", // Calls android.opengl.GLES20._nativeClassInit.
"Landroid/opengl/GLUtils;", // Calls android.opengl.GLUtils.nativeClassInit.
"Landroid/os/Build;", // Calls -..-> android.os.SystemProperties.native_get.
"Landroid/os/Build$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$VmPolicy;", // Requires StrictMode.
"Landroid/os/Trace;", // Calls android.os.Trace.nativeGetEnabledTags.
"Landroid/os/UEventObserver;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex.
"Landroid/provider/Settings$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/animation/Animation;", // Calls SystemProperties.native_get_boolean.
"Landroid/view/animation/AlphaAnimation;", // Requires Animation.
"Landroid/view/Choreographer;", // Calls SystemProperties.native_get_boolean.
"Landroid/view/GLES20Canvas;", // Calls android.view.GLES20Canvas.nIsAvailable.
"Landroid/view/GLES20RecordingCanvas;", // Requires android.view.GLES20Canvas.
"Landroid/view/HardwareRenderer$GlRenderer;", // Requires SystemProperties.native_get.
"Landroid/view/HardwareRenderer$Gl20Renderer;", // Requires SystemProperties.native_get.
"Landroid/view/InputEventConsistencyVerifier;", // Requires android.os.Build.
"Landroid/view/Surface;", // Requires SystemProperties.native_get.
"Landroid/webkit/JniUtil;", // Calls System.loadLibrary.
"Landroid/webkit/WebViewCore;", // Calls System.loadLibrary.
"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$SearchAutoComplete;", // Requires TextView.
"Landroid/widget/Switch;", // Requires TextView.
"Landroid/widget/TextView;", // Calls Paint.<init> -> Paint.native_init.
"Lcom/android/i18n/phonenumbers/AsYouTypeFormatter;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Lcom/android/i18n/phonenumbers/PhoneNumberUtil;", // Requires java.util.logging.LogManager.
"Lcom/android/internal/os/SamplingProfilerIntegration;", // Calls SystemProperties.native_get_int.
"Lcom/android/internal/policy/impl/PhoneWindow;", // Calls android.os.Binder.init.
"Lcom/android/internal/view/menu/ActionMenuItemView;", // Requires TextView.
"Lcom/android/internal/widget/DialogTitle;", // Requires TextView.
"Lcom/android/org/bouncycastle/asn1/StreamUtil;", // Calls Runtime.getRuntime().maxMemory().
"Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA1;", // Requires org.apache.harmony.xnet.provider.jsse.NativeCrypto.
"Lcom/android/org/bouncycastle/crypto/engines/RSABlindedEngine;", // 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/PKIXCertPathValidatorSpi;", // Calls System.getenv -> OsConstants.initConstants.
"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.
"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/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/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/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/security/Security;", // Tries to do disk IO for "security.properties".
"Ljava/util/Date;", // Calls Date.<init> -> System.currentTimeMillis -> OsConstants.initConstants.
"Ljava/util/Locale;", // Calls System.getProperty -> OsConstants.initConstants.
"Ljava/util/SimpleTimeZone;", // Sub-class of TimeZone.
"Ljava/util/TimeZone;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl.
"Ljava/util/concurrent/ConcurrentHashMap$Segment;", // Calls Runtime.getRuntime().availableProcessors().
"Ljava/util/logging/LogManager;", // Calls System.getProperty -> OsConstants.initConstants.
"Ljavax/microedition/khronos/egl/EGL10;", // Requires EGLContext.
"Ljavax/microedition/khronos/egl/EGLContext;", // Requires com.google.android.gles_jni.EGLImpl.
"Ljavax/net/ssl/HttpsURLConnection;", // Calls SSLSocketFactory.getDefault -> java.security.Security.getProperty.
"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/util/ZoneInfo;", // Sub-class of TimeZone.
"Llibcore/util/ZoneInfoDB;", // Calls System.getenv -> OsConstants.initConstants.
"Lorg/apache/commons/logging/LogFactory;", // Calls System.getProperty.
"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/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/Certificate;", // Requires org.apache.harmony.security.x509.TBSCertificate.
"Lorg/apache/harmony/security/x509/TBSCertificate;", // Requires org.apache.harmony.security.x501.Name.
"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/Time;", // Calls native ... -> java.math.NativeBN.BN_new().
"Lorg/apache/harmony/security/x509/Validity;", // Requires x509.Time.
"Lorg/apache/harmony/xml/ExpatParser;", // Calls native ExpatParser.staticInitialize.
"Lorg/apache/harmony/xnet/provider/jsse/NativeCrypto;", // Calls native NativeCrypto.clinit().
"Lorg/apache/harmony/xnet/provider/jsse/OpenSSLMessageDigestJDK$MD5;", // Requires org.apache.harmony.xnet.provider.jsse.NativeCrypto.
"Lorg/apache/harmony/xnet/provider/jsse/OpenSSLMessageDigestJDK$SHA1;", // Requires org.apache.harmony.xnet.provider.jsse.NativeCrypto.
"Lorg/apache/harmony/xnet/provider/jsse/OpenSSLMessageDigestJDK$SHA512;", // Requires org.apache.harmony.xnet.provider.jsse.NativeCrypto.
"Lorg/apache/harmony/xnet/provider/jsse/TrustedCertificateStore;", // Calls System.getenv -> OsConstants.initConstants.
"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_) {
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);
bool compiling_boot = Runtime::Current()->GetHeap()->GetSpaces().size() == 1;
bool can_init_static_fields = compiling_boot &&
manager->GetCompiler()->IsImageClass(descriptor);
if (klass != NULL) {
// We don't want 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.
static Mutex lock1("Initializer lock", kMonitorLock);
MutexLock mu(soa.Self(), lock1);
// The lock required to initialize the class.
ObjectLock lock2(soa.Self(), klass);
// Only try to initialize classes that were successfully verified.
if (klass->IsVerified()) {
manager->GetClassLinker()->EnsureInitialized(klass, false, can_init_static_fields);
if (!klass->IsInitialized()) {
if (can_init_static_fields) {
bool is_black_listed = false;
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) {
LOG(INFO) << "Initializing: " << descriptor;
if (StringPiece(descriptor) == "Ljava/lang/Void;"){
// Hand initialize j.l.Void to avoid Dex file operations in un-started runtime.
mirror::ObjectArray<mirror::Field>* fields = klass->GetSFields();
CHECK_EQ(fields->GetLength(), 1);
fields->Get(0)->SetObj(klass, manager->GetClassLinker()->FindPrimitiveClass('V'));
klass->SetStatus(mirror::Class::kStatusInitialized);
} else {
manager->GetClassLinker()->EnsureInitialized(klass, true, can_init_static_fields);
}
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.
mirror::Class::Status status = klass->GetStatus();
CompilerDriver::ClassReference ref(manager->GetDexFile(), class_def_index);
CompiledClass* compiled_class = manager->GetCompiler()->GetCompiledClass(ref);
if (compiled_class == NULL) {
compiled_class = new CompiledClass(status);
manager->GetCompiler()->RecordClassStatus(ref, compiled_class);
} else {
DCHECK_EQ(status, compiled_class->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, TimingLogger& timings) {
#ifndef NDEBUG
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_);
timings.AddSplit("InitializeNoClinit " + dex_file.GetLocation());
}
void CompilerDriver::InitializeClasses(jobject class_loader,
const std::vector<const DexFile*>& dex_files,
ThreadPool& thread_pool, 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, 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) {
jobject class_loader = manager->GetClassLoader();
const DexFile& dex_file = *manager->GetDexFile();
const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index);
{
ScopedObjectAccess soa(Thread::Current());
mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader());
if (SkipClass(class_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;
}
ClassDataItemIterator it(dex_file, class_data);
// Skip fields
while (it.HasNextStaticField()) {
it.Next();
}
while (it.HasNextInstanceField()) {
it.Next();
}
// 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;
manager->GetCompiler()->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(),
it.GetMethodInvokeType(class_def), class_def_index,
method_idx, class_loader, dex_file);
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;
manager->GetCompiler()->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(),
it.GetMethodInvokeType(class_def), class_def_index,
method_idx, class_loader, dex_file);
it.Next();
}
DCHECK(!it.HasNext());
}
void CompilerDriver::CompileDexFile(jobject class_loader, const DexFile& dex_file,
ThreadPool& thread_pool, TimingLogger& timings) {
ParallelCompilationManager context(NULL, class_loader, this, &dex_file, thread_pool);
context.ForAll(0, dex_file.NumClassDefs(), CompilerDriver::CompileClass, thread_count_);
timings.AddSplit("Compile " + dex_file.GetLocation());
}
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) {
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 {
// In light mode we only compile image classes.
bool dont_compile = light_mode_ && ((image_classes_ == NULL) || (image_classes_->size() == 0));
// Don't compile class initializers, ever.
if (((access_flags & kAccConstructor) != 0) && ((access_flags & kAccStatic) != 0)) {
dont_compile = true;
}
if (!dont_compile) {
compiled_method = (*compiler_)(*this, code_item, access_flags, invoke_type, class_def_idx,
method_idx, class_loader, dex_file);
CHECK(compiled_method != NULL) << PrettyMethod(method_idx, dex_file);
}
}
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);
CHECK(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;
}
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 =
FindFunction<SetBitcodeFileNameFn>(MakeCompilerSoName(compiler_backend_), compiler_library_,
"compilerLLVMSetBitcodeFileName");
set_bitcode_file_name(*this, filename);
}
void CompilerDriver::AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file,
size_t class_def_index) {
MutexLock 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) {
MutexLock 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 DexFile*>& dex_files,
std::vector<uint8_t>& oat_contents,
File* file) {
typedef bool (*WriteElfFn)(CompilerDriver&,
const std::string& android_root,
bool is_host,
const std::vector<const DexFile*>& dex_files,
std::vector<uint8_t>&,
File*);
WriteElfFn WriteElf =
FindFunction<WriteElfFn>(MakeCompilerSoName(compiler_backend_), compiler_library_, "WriteElf");
Locks::mutator_lock_->AssertSharedHeld(Thread::Current());
return WriteElf(*this, android_root, is_host, dex_files, oat_contents, file);
}
bool CompilerDriver::FixupElf(File* file, uintptr_t oat_data_begin) const {
typedef bool (*FixupElfFn)(File*, uintptr_t oat_data_begin);
FixupElfFn FixupElf =
FindFunction<FixupElfFn>(MakeCompilerSoName(compiler_backend_), compiler_library_, "FixupElf");
return FixupElf(file, oat_data_begin);
}
void CompilerDriver::GetOatElfInformation(File* file,
size_t& oat_loaded_size,
size_t& oat_data_offset) const {
typedef bool (*GetOatElfInformationFn)(File*, size_t& oat_loaded_size, size_t& oat_data_offset);
GetOatElfInformationFn GetOatElfInformation =
FindFunction<GetOatElfInformationFn>(MakeCompilerSoName(compiler_backend_), compiler_library_,
"GetOatElfInformation");
GetOatElfInformation(file, oat_loaded_size, oat_data_offset);
}
bool CompilerDriver::StripElf(File* file) const {
typedef bool (*StripElfFn)(File*);
StripElfFn StripElf =
FindFunction<StripElfFn>(MakeCompilerSoName(compiler_backend_), compiler_library_, "StripElf");
return StripElf(file);
}
void CompilerDriver::InstructionSetToLLVMTarget(InstructionSet instruction_set,
std::string& target_triple,
std::string& target_cpu,
std::string& target_attr) {
switch (instruction_set) {
case kThumb2:
target_triple = "thumb-none-linux-gnueabi";
target_cpu = "cortex-a9";
target_attr = "+thumb2,+neon,+neonfp,+vfp3,+db";
break;
case kArm:
target_triple = "armv7-none-linux-gnueabi";
// TODO: Fix for Nexus S.
target_cpu = "cortex-a9";
// TODO: Fix for Xoom.
target_attr = "+v7,+neon,+neonfp,+vfp3,+db";
break;
case kX86:
target_triple = "i386-pc-linux-gnu";
target_attr = "";
break;
case kMips:
target_triple = "mipsel-unknown-linux";
target_attr = "mips32r2";
break;
default:
LOG(FATAL) << "Unknown instruction set: " << instruction_set;
}
}
} // namespace art