/*
* 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.
*/
#ifndef ART_COMPILER_DRIVER_COMPILER_DRIVER_H_
#define ART_COMPILER_DRIVER_COMPILER_DRIVER_H_
#include <set>
#include <string>
#include <vector>
#include "base/mutex.h"
#include "base/timing_logger.h"
#include "class_reference.h"
#include "compiled_method.h"
#include "compiler.h"
#include "dex_file.h"
#include "driver/compiler_options.h"
#include "instruction_set.h"
#include "invoke_type.h"
#include "method_reference.h"
#include "mirror/class.h" // For mirror::Class::Status.
#include "os.h"
#include "profiler.h"
#include "runtime.h"
#include "safe_map.h"
#include "thread_pool.h"
#include "utils/arena_allocator.h"
#include "utils/dedupe_set.h"
namespace art {
namespace verifier {
class MethodVerifier;
} // namespace verifier
class CompiledClass;
class CompilerOptions;
class DexCompilationUnit;
class DexFileToMethodInlinerMap;
struct InlineIGetIPutData;
class OatWriter;
class ParallelCompilationManager;
class ScopedObjectAccess;
template<class T> class Handle;
class TimingLogger;
class VerificationResults;
class VerifiedMethod;
enum EntryPointCallingConvention {
// ABI of invocations to a method's interpreter entry point.
kInterpreterAbi,
// ABI of calls to a method's native code, only used for native methods.
kJniAbi,
// ABI of calls to a method's portable code entry point.
kPortableAbi,
// ABI of calls to a method's quick code entry point.
kQuickAbi
};
enum DexToDexCompilationLevel {
kDontDexToDexCompile, // Only meaning wrt image time interpretation.
kRequired, // Dex-to-dex compilation required for correctness.
kOptimize // Perform required transformation and peep-hole optimizations.
};
// Thread-local storage compiler worker threads
class CompilerTls {
public:
CompilerTls() : llvm_info_(nullptr) {}
~CompilerTls() {}
void* GetLLVMInfo() { return llvm_info_; }
void SetLLVMInfo(void* llvm_info) { llvm_info_ = llvm_info; }
private:
void* llvm_info_;
};
class CompilerDriver {
public:
// Create a compiler targeting the requested "instruction_set".
// "image" should be true if image specific optimizations should be
// enabled. "image_classes" lets the compiler know what classes it
// can assume will be in the image, with nullptr implying all available
// classes.
explicit CompilerDriver(const CompilerOptions* compiler_options,
VerificationResults* verification_results,
DexFileToMethodInlinerMap* method_inliner_map,
Compiler::Kind compiler_kind,
InstructionSet instruction_set,
InstructionSetFeatures instruction_set_features,
bool image, std::set<std::string>* image_classes,
size_t thread_count, bool dump_stats, bool dump_passes,
CumulativeLogger* timer, std::string profile_file = "");
~CompilerDriver();
void CompileAll(jobject class_loader, const std::vector<const DexFile*>& dex_files,
TimingLogger* timings)
LOCKS_EXCLUDED(Locks::mutator_lock_);
// Compile a single Method.
void CompileOne(mirror::ArtMethod* method, TimingLogger* timings)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
VerificationResults* GetVerificationResults() const {
return verification_results_;
}
DexFileToMethodInlinerMap* GetMethodInlinerMap() const {
return method_inliner_map_;
}
InstructionSet GetInstructionSet() const {
return instruction_set_;
}
InstructionSetFeatures GetInstructionSetFeatures() const {
return instruction_set_features_;
}
const CompilerOptions& GetCompilerOptions() const {
return *compiler_options_;
}
Compiler* GetCompiler() const {
return compiler_.get();
}
bool ProfilePresent() const {
return profile_present_;
}
// Are we compiling and creating an image file?
bool IsImage() const {
return image_;
}
const std::set<std::string>* GetImageClasses() const {
return image_classes_.get();
}
CompilerTls* GetTls();
// Generate the trampolines that are invoked by unresolved direct methods.
const std::vector<uint8_t>* CreateInterpreterToInterpreterBridge() const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
const std::vector<uint8_t>* CreateInterpreterToCompiledCodeBridge() const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
const std::vector<uint8_t>* CreateJniDlsymLookup() const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
const std::vector<uint8_t>* CreatePortableImtConflictTrampoline() const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
const std::vector<uint8_t>* CreatePortableResolutionTrampoline() const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
const std::vector<uint8_t>* CreatePortableToInterpreterBridge() const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
const std::vector<uint8_t>* CreateQuickGenericJniTrampoline() const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
const std::vector<uint8_t>* CreateQuickImtConflictTrampoline() const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
const std::vector<uint8_t>* CreateQuickResolutionTrampoline() const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
const std::vector<uint8_t>* CreateQuickToInterpreterBridge() const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
CompiledClass* GetCompiledClass(ClassReference ref) const
LOCKS_EXCLUDED(compiled_classes_lock_);
CompiledMethod* GetCompiledMethod(MethodReference ref) const
LOCKS_EXCLUDED(compiled_methods_lock_);
void AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file,
uint16_t class_def_index);
bool RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, uint16_t class_def_index);
// Callbacks from compiler to see what runtime checks must be generated.
bool CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, uint32_t type_idx);
bool CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, uint32_t string_idx)
LOCKS_EXCLUDED(Locks::mutator_lock_);
// Are runtime access checks necessary in the compiled code?
bool CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file,
uint32_t type_idx, bool* type_known_final = nullptr,
bool* type_known_abstract = nullptr,
bool* equals_referrers_class = nullptr)
LOCKS_EXCLUDED(Locks::mutator_lock_);
// Are runtime access and instantiable checks necessary in the code?
bool CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file,
uint32_t type_idx)
LOCKS_EXCLUDED(Locks::mutator_lock_);
bool CanEmbedTypeInCode(const DexFile& dex_file, uint32_t type_idx,
bool* is_type_initialized, bool* use_direct_type_ptr,
uintptr_t* direct_type_ptr, bool* out_is_finalizable);
// Get the DexCache for the
mirror::DexCache* GetDexCache(const DexCompilationUnit* mUnit)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
mirror::ClassLoader* GetClassLoader(ScopedObjectAccess& soa, const DexCompilationUnit* mUnit)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Resolve compiling method's class. Returns nullptr on failure.
mirror::Class* ResolveCompilingMethodsClass(
const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache,
Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Resolve a field. Returns nullptr on failure, including incompatible class change.
// NOTE: Unlike ClassLinker's ResolveField(), this method enforces is_static.
mirror::ArtField* ResolveField(
const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache,
Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit,
uint32_t field_idx, bool is_static)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Get declaration location of a resolved field.
void GetResolvedFieldDexFileLocation(
mirror::ArtField* resolved_field, const DexFile** declaring_dex_file,
uint16_t* declaring_class_idx, uint16_t* declaring_field_idx)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
bool IsFieldVolatile(mirror::ArtField* field) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Can we fast-path an IGET/IPUT access to an instance field? If yes, compute the field offset.
std::pair<bool, bool> IsFastInstanceField(
mirror::DexCache* dex_cache, mirror::Class* referrer_class,
mirror::ArtField* resolved_field, uint16_t field_idx)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Can we fast-path an SGET/SPUT access to a static field? If yes, compute the field offset,
// the type index of the declaring class in the referrer's dex file and whether the declaring
// class is the referrer's class or at least can be assumed to be initialized.
std::pair<bool, bool> IsFastStaticField(
mirror::DexCache* dex_cache, mirror::Class* referrer_class,
mirror::ArtField* resolved_field, uint16_t field_idx, MemberOffset* field_offset,
uint32_t* storage_index, bool* is_referrers_class, bool* is_initialized)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Resolve a method. Returns nullptr on failure, including incompatible class change.
mirror::ArtMethod* ResolveMethod(
ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache,
Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit,
uint32_t method_idx, InvokeType invoke_type)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Get declaration location of a resolved field.
void GetResolvedMethodDexFileLocation(
mirror::ArtMethod* resolved_method, const DexFile** declaring_dex_file,
uint16_t* declaring_class_idx, uint16_t* declaring_method_idx)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Get declaration location of a resolved field.
uint16_t GetResolvedMethodVTableIndex(
mirror::ArtMethod* resolved_method, InvokeType type)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Can we fast-path an INVOKE? If no, returns 0. If yes, returns a non-zero opaque flags value
// for ProcessedInvoke() and computes the necessary lowering info.
int IsFastInvoke(
ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache,
Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit,
mirror::Class* referrer_class, mirror::ArtMethod* resolved_method, InvokeType* invoke_type,
MethodReference* target_method, const MethodReference* devirt_target,
uintptr_t* direct_code, uintptr_t* direct_method)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Does invokation of the resolved method need class initialization?
bool NeedsClassInitialization(mirror::Class* referrer_class, mirror::ArtMethod* resolved_method)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void ProcessedInstanceField(bool resolved);
void ProcessedStaticField(bool resolved, bool local);
void ProcessedInvoke(InvokeType invoke_type, int flags);
// Can we fast path instance field access? Computes field's offset and volatility.
bool ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, bool is_put,
MemberOffset* field_offset, bool* is_volatile)
LOCKS_EXCLUDED(Locks::mutator_lock_);
mirror::ArtField* ComputeInstanceFieldInfo(uint32_t field_idx,
const DexCompilationUnit* mUnit,
bool is_put,
const ScopedObjectAccess& soa)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Can we fastpath static field access? Computes field's offset, volatility and whether the
// field is within the referrer (which can avoid checking class initialization).
bool ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, bool is_put,
MemberOffset* field_offset, uint32_t* storage_index,
bool* is_referrers_class, bool* is_volatile, bool* is_initialized)
LOCKS_EXCLUDED(Locks::mutator_lock_);
// Can we fastpath a interface, super class or virtual method call? Computes method's vtable
// index.
bool ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc,
bool update_stats, bool enable_devirtualization,
InvokeType* type, MethodReference* target_method, int* vtable_idx,
uintptr_t* direct_code, uintptr_t* direct_method)
LOCKS_EXCLUDED(Locks::mutator_lock_);
const VerifiedMethod* GetVerifiedMethod(const DexFile* dex_file, uint32_t method_idx) const;
bool IsSafeCast(const DexCompilationUnit* mUnit, uint32_t dex_pc);
// Record patch information for later fix up.
void AddCodePatch(const DexFile* dex_file,
uint16_t referrer_class_def_idx,
uint32_t referrer_method_idx,
InvokeType referrer_invoke_type,
uint32_t target_method_idx,
const DexFile* target_dex_file,
InvokeType target_invoke_type,
size_t literal_offset)
LOCKS_EXCLUDED(compiled_methods_lock_);
void AddRelativeCodePatch(const DexFile* dex_file,
uint16_t referrer_class_def_idx,
uint32_t referrer_method_idx,
InvokeType referrer_invoke_type,
uint32_t target_method_idx,
const DexFile* target_dex_file,
InvokeType target_invoke_type,
size_t literal_offset,
int32_t pc_relative_offset)
LOCKS_EXCLUDED(compiled_methods_lock_);
void AddMethodPatch(const DexFile* dex_file,
uint16_t referrer_class_def_idx,
uint32_t referrer_method_idx,
InvokeType referrer_invoke_type,
uint32_t target_method_idx,
const DexFile* target_dex_file,
InvokeType target_invoke_type,
size_t literal_offset)
LOCKS_EXCLUDED(compiled_methods_lock_);
void AddClassPatch(const DexFile* dex_file,
uint16_t referrer_class_def_idx,
uint32_t referrer_method_idx,
uint32_t target_method_idx,
size_t literal_offset)
LOCKS_EXCLUDED(compiled_methods_lock_);
bool GetSupportBootImageFixup() const {
return support_boot_image_fixup_;
}
void SetSupportBootImageFixup(bool support_boot_image_fixup) {
support_boot_image_fixup_ = support_boot_image_fixup;
}
ArenaPool* GetArenaPool() {
return &arena_pool_;
}
bool WriteElf(const std::string& android_root,
bool is_host,
const std::vector<const DexFile*>& dex_files,
OatWriter* oat_writer,
File* file);
// TODO: move to a common home for llvm helpers once quick/portable are merged.
static void InstructionSetToLLVMTarget(InstructionSet instruction_set,
std::string* target_triple,
std::string* target_cpu,
std::string* target_attr);
void SetCompilerContext(void* compiler_context) {
compiler_context_ = compiler_context;
}
void* GetCompilerContext() const {
return compiler_context_;
}
size_t GetThreadCount() const {
return thread_count_;
}
class CallPatchInformation;
class TypePatchInformation;
bool GetDumpPasses() const {
return dump_passes_;
}
bool DidIncludeDebugSymbols() const {
return compiler_options_->GetIncludeDebugSymbols();
}
CumulativeLogger* GetTimingsLogger() const {
return timings_logger_;
}
class PatchInformation {
public:
const DexFile& GetDexFile() const {
return *dex_file_;
}
uint16_t GetReferrerClassDefIdx() const {
return referrer_class_def_idx_;
}
uint32_t GetReferrerMethodIdx() const {
return referrer_method_idx_;
}
size_t GetLiteralOffset() const {
return literal_offset_;
}
virtual bool IsCall() const {
return false;
}
virtual bool IsType() const {
return false;
}
virtual const CallPatchInformation* AsCall() const {
LOG(FATAL) << "Unreachable";
return nullptr;
}
virtual const TypePatchInformation* AsType() const {
LOG(FATAL) << "Unreachable";
return nullptr;
}
protected:
PatchInformation(const DexFile* dex_file,
uint16_t referrer_class_def_idx,
uint32_t referrer_method_idx,
size_t literal_offset)
: dex_file_(dex_file),
referrer_class_def_idx_(referrer_class_def_idx),
referrer_method_idx_(referrer_method_idx),
literal_offset_(literal_offset) {
CHECK(dex_file_ != nullptr);
}
virtual ~PatchInformation() {}
const DexFile* const dex_file_;
const uint16_t referrer_class_def_idx_;
const uint32_t referrer_method_idx_;
const size_t literal_offset_;
friend class CompilerDriver;
};
class CallPatchInformation : public PatchInformation {
public:
InvokeType GetReferrerInvokeType() const {
return referrer_invoke_type_;
}
uint32_t GetTargetMethodIdx() const {
return target_method_idx_;
}
const DexFile* GetTargetDexFile() const {
return target_dex_file_;
}
InvokeType GetTargetInvokeType() const {
return target_invoke_type_;
}
const CallPatchInformation* AsCall() const {
return this;
}
bool IsCall() const {
return true;
}
virtual bool IsRelative() const {
return false;
}
virtual int RelativeOffset() const {
return 0;
}
protected:
CallPatchInformation(const DexFile* dex_file,
uint16_t referrer_class_def_idx,
uint32_t referrer_method_idx,
InvokeType referrer_invoke_type,
uint32_t target_method_idx,
const DexFile* target_dex_file,
InvokeType target_invoke_type,
size_t literal_offset)
: PatchInformation(dex_file, referrer_class_def_idx,
referrer_method_idx, literal_offset),
referrer_invoke_type_(referrer_invoke_type),
target_method_idx_(target_method_idx),
target_dex_file_(target_dex_file),
target_invoke_type_(target_invoke_type) {
}
private:
const InvokeType referrer_invoke_type_;
const uint32_t target_method_idx_;
const DexFile* target_dex_file_;
const InvokeType target_invoke_type_;
friend class CompilerDriver;
DISALLOW_COPY_AND_ASSIGN(CallPatchInformation);
};
class RelativeCallPatchInformation : public CallPatchInformation {
public:
bool IsRelative() const {
return true;
}
int RelativeOffset() const {
return offset_;
}
private:
RelativeCallPatchInformation(const DexFile* dex_file,
uint16_t referrer_class_def_idx,
uint32_t referrer_method_idx,
InvokeType referrer_invoke_type,
uint32_t target_method_idx,
const DexFile* target_dex_file,
InvokeType target_invoke_type,
size_t literal_offset,
int32_t pc_relative_offset)
: CallPatchInformation(dex_file, referrer_class_def_idx,
referrer_method_idx, referrer_invoke_type, target_method_idx,
target_dex_file, target_invoke_type, literal_offset),
offset_(pc_relative_offset) {
}
const int offset_;
friend class CompilerDriver;
DISALLOW_COPY_AND_ASSIGN(RelativeCallPatchInformation);
};
class TypePatchInformation : public PatchInformation {
public:
uint32_t GetTargetTypeIdx() const {
return target_type_idx_;
}
bool IsType() const {
return true;
}
const TypePatchInformation* AsType() const {
return this;
}
private:
TypePatchInformation(const DexFile* dex_file,
uint16_t referrer_class_def_idx,
uint32_t referrer_method_idx,
uint32_t target_type_idx,
size_t literal_offset)
: PatchInformation(dex_file, referrer_class_def_idx,
referrer_method_idx, literal_offset),
target_type_idx_(target_type_idx) {
}
const uint32_t target_type_idx_;
friend class CompilerDriver;
DISALLOW_COPY_AND_ASSIGN(TypePatchInformation);
};
const std::vector<const CallPatchInformation*>& GetCodeToPatch() const {
return code_to_patch_;
}
const std::vector<const CallPatchInformation*>& GetMethodsToPatch() const {
return methods_to_patch_;
}
const std::vector<const TypePatchInformation*>& GetClassesToPatch() const {
return classes_to_patch_;
}
// Checks if class specified by type_idx is one of the image_classes_
bool IsImageClass(const char* descriptor) const;
void RecordClassStatus(ClassReference ref, mirror::Class::Status status)
LOCKS_EXCLUDED(compiled_classes_lock_);
std::vector<uint8_t>* DeduplicateCode(const std::vector<uint8_t>& code);
std::vector<uint8_t>* DeduplicateMappingTable(const std::vector<uint8_t>& code);
std::vector<uint8_t>* DeduplicateVMapTable(const std::vector<uint8_t>& code);
std::vector<uint8_t>* DeduplicateGCMap(const std::vector<uint8_t>& code);
std::vector<uint8_t>* DeduplicateCFIInfo(const std::vector<uint8_t>* cfi_info);
/*
* @brief return the pointer to the Call Frame Information.
* @return pointer to call frame information for this compilation.
*/
std::vector<uint8_t>* GetCallFrameInformation() const {
return cfi_info_.get();
}
ProfileFile profile_file_;
bool profile_present_;
// Should the compiler run on this method given profile information?
bool SkipCompilation(const std::string& method_name);
private:
// These flags are internal to CompilerDriver for collecting INVOKE resolution statistics.
// The only external contract is that unresolved method has flags 0 and resolved non-0.
enum {
kBitMethodResolved = 0,
kBitVirtualMadeDirect,
kBitPreciseTypeDevirtualization,
kBitDirectCallToBoot,
kBitDirectMethodToBoot
};
static constexpr int kFlagMethodResolved = 1 << kBitMethodResolved;
static constexpr int kFlagVirtualMadeDirect = 1 << kBitVirtualMadeDirect;
static constexpr int kFlagPreciseTypeDevirtualization = 1 << kBitPreciseTypeDevirtualization;
static constexpr int kFlagDirectCallToBoot = 1 << kBitDirectCallToBoot;
static constexpr int kFlagDirectMethodToBoot = 1 << kBitDirectMethodToBoot;
static constexpr int kFlagsMethodResolvedVirtualMadeDirect =
kFlagMethodResolved | kFlagVirtualMadeDirect;
static constexpr int kFlagsMethodResolvedPreciseTypeDevirtualization =
kFlagsMethodResolvedVirtualMadeDirect | kFlagPreciseTypeDevirtualization;
public: // TODO make private or eliminate.
// Compute constant code and method pointers when possible.
void GetCodeAndMethodForDirectCall(InvokeType* type, InvokeType sharp_type,
bool no_guarantee_of_dex_cache_entry,
mirror::Class* referrer_class,
mirror::ArtMethod* method,
int* stats_flags,
MethodReference* target_method,
uintptr_t* direct_code, uintptr_t* direct_method)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
private:
void PreCompile(jobject class_loader, const std::vector<const DexFile*>& dex_files,
ThreadPool* thread_pool, TimingLogger* timings)
LOCKS_EXCLUDED(Locks::mutator_lock_);
void LoadImageClasses(TimingLogger* timings);
// Attempt to resolve all type, methods, fields, and strings
// referenced from code in the dex file following PathClassLoader
// ordering semantics.
void Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files,
ThreadPool* thread_pool, TimingLogger* timings)
LOCKS_EXCLUDED(Locks::mutator_lock_);
void ResolveDexFile(jobject class_loader, const DexFile& dex_file,
const std::vector<const DexFile*>& dex_files,
ThreadPool* thread_pool, TimingLogger* timings)
LOCKS_EXCLUDED(Locks::mutator_lock_);
void Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files,
ThreadPool* thread_pool, TimingLogger* timings);
void VerifyDexFile(jobject class_loader, const DexFile& dex_file,
const std::vector<const DexFile*>& dex_files,
ThreadPool* thread_pool, TimingLogger* timings)
LOCKS_EXCLUDED(Locks::mutator_lock_);
void SetVerified(jobject class_loader, const std::vector<const DexFile*>& dex_files,
ThreadPool* thread_pool, TimingLogger* timings);
void SetVerifiedDexFile(jobject class_loader, const DexFile& dex_file,
const std::vector<const DexFile*>& dex_files,
ThreadPool* thread_pool, TimingLogger* timings)
LOCKS_EXCLUDED(Locks::mutator_lock_);
void InitializeClasses(jobject class_loader, const std::vector<const DexFile*>& dex_files,
ThreadPool* thread_pool, TimingLogger* timings)
LOCKS_EXCLUDED(Locks::mutator_lock_);
void InitializeClasses(jobject class_loader, const DexFile& dex_file,
const std::vector<const DexFile*>& dex_files,
ThreadPool* thread_pool, TimingLogger* timings)
LOCKS_EXCLUDED(Locks::mutator_lock_, compiled_classes_lock_);
void UpdateImageClasses(TimingLogger* timings) LOCKS_EXCLUDED(Locks::mutator_lock_);
static void FindClinitImageClassesCallback(mirror::Object* object, void* arg)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void Compile(jobject class_loader, const std::vector<const DexFile*>& dex_files,
ThreadPool* thread_pool, TimingLogger* timings);
void CompileDexFile(jobject class_loader, const DexFile& dex_file,
const std::vector<const DexFile*>& dex_files,
ThreadPool* thread_pool, TimingLogger* timings)
LOCKS_EXCLUDED(Locks::mutator_lock_);
void CompileMethod(const DexFile::CodeItem* code_item, uint32_t access_flags,
InvokeType invoke_type, uint16_t class_def_idx, uint32_t method_idx,
jobject class_loader, const DexFile& dex_file,
DexToDexCompilationLevel dex_to_dex_compilation_level)
LOCKS_EXCLUDED(compiled_methods_lock_);
static void CompileClass(const ParallelCompilationManager* context, size_t class_def_index)
LOCKS_EXCLUDED(Locks::mutator_lock_);
std::vector<const CallPatchInformation*> code_to_patch_;
std::vector<const CallPatchInformation*> methods_to_patch_;
std::vector<const TypePatchInformation*> classes_to_patch_;
const CompilerOptions* const compiler_options_;
VerificationResults* const verification_results_;
DexFileToMethodInlinerMap* const method_inliner_map_;
std::unique_ptr<Compiler> compiler_;
const InstructionSet instruction_set_;
const InstructionSetFeatures instruction_set_features_;
// All class references that require
mutable ReaderWriterMutex freezing_constructor_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER;
std::set<ClassReference> freezing_constructor_classes_ GUARDED_BY(freezing_constructor_lock_);
typedef SafeMap<const ClassReference, CompiledClass*> ClassTable;
// All class references that this compiler has compiled.
mutable Mutex compiled_classes_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER;
ClassTable compiled_classes_ GUARDED_BY(compiled_classes_lock_);
typedef SafeMap<const MethodReference, CompiledMethod*, MethodReferenceComparator> MethodTable;
// All method references that this compiler has compiled.
mutable Mutex compiled_methods_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER;
MethodTable compiled_methods_ GUARDED_BY(compiled_methods_lock_);
const bool image_;
// If image_ is true, specifies the classes that will be included in
// the image. Note if image_classes_ is nullptr, all classes are
// included in the image.
std::unique_ptr<std::set<std::string>> image_classes_;
size_t thread_count_;
uint64_t start_ns_;
class AOTCompilationStats;
std::unique_ptr<AOTCompilationStats> stats_;
bool dump_stats_;
const bool dump_passes_;
CumulativeLogger* const timings_logger_;
typedef void (*CompilerCallbackFn)(CompilerDriver& driver);
typedef MutexLock* (*CompilerMutexLockFn)(CompilerDriver& driver);
void* compiler_library_;
typedef void (*DexToDexCompilerFn)(CompilerDriver& driver,
const DexFile::CodeItem* code_item,
uint32_t access_flags, InvokeType invoke_type,
uint32_t class_dex_idx, uint32_t method_idx,
jobject class_loader, const DexFile& dex_file,
DexToDexCompilationLevel dex_to_dex_compilation_level);
DexToDexCompilerFn dex_to_dex_compiler_;
void* compiler_context_;
pthread_key_t tls_key_;
// Arena pool used by the compiler.
ArenaPool arena_pool_;
typedef void (*CompilerEnableAutoElfLoadingFn)(CompilerDriver& driver);
CompilerEnableAutoElfLoadingFn compiler_enable_auto_elf_loading_;
typedef const void* (*CompilerGetMethodCodeAddrFn)
(const CompilerDriver& driver, const CompiledMethod* cm, const mirror::ArtMethod* method);
CompilerGetMethodCodeAddrFn compiler_get_method_code_addr_;
bool support_boot_image_fixup_;
// Call Frame Information, which might be generated to help stack tracebacks.
std::unique_ptr<std::vector<uint8_t>> cfi_info_;
// DeDuplication data structures, these own the corresponding byte arrays.
class DedupeHashFunc {
public:
size_t operator()(const std::vector<uint8_t>& array) const {
// For small arrays compute a hash using every byte.
static const size_t kSmallArrayThreshold = 16;
size_t hash = 0x811c9dc5;
if (array.size() <= kSmallArrayThreshold) {
for (uint8_t b : array) {
hash = (hash * 16777619) ^ b;
}
} else {
// For larger arrays use the 2 bytes at 6 bytes (the location of a push registers
// instruction field for quick generated code on ARM) and then select a number of other
// values at random.
static const size_t kRandomHashCount = 16;
for (size_t i = 0; i < 2; ++i) {
uint8_t b = array[i + 6];
hash = (hash * 16777619) ^ b;
}
for (size_t i = 2; i < kRandomHashCount; ++i) {
size_t r = i * 1103515245 + 12345;
uint8_t b = array[r % array.size()];
hash = (hash * 16777619) ^ b;
}
}
hash += hash << 13;
hash ^= hash >> 7;
hash += hash << 3;
hash ^= hash >> 17;
hash += hash << 5;
return hash;
}
};
DedupeSet<std::vector<uint8_t>, size_t, DedupeHashFunc, 4> dedupe_code_;
DedupeSet<std::vector<uint8_t>, size_t, DedupeHashFunc, 4> dedupe_mapping_table_;
DedupeSet<std::vector<uint8_t>, size_t, DedupeHashFunc, 4> dedupe_vmap_table_;
DedupeSet<std::vector<uint8_t>, size_t, DedupeHashFunc, 4> dedupe_gc_map_;
DedupeSet<std::vector<uint8_t>, size_t, DedupeHashFunc, 4> dedupe_cfi_info_;
DISALLOW_COPY_AND_ASSIGN(CompilerDriver);
};
} // namespace art
#endif // ART_COMPILER_DRIVER_COMPILER_DRIVER_H_