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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_COMPILER_DRIVER_COMPILER_DRIVER_H_
#define ART_COMPILER_DRIVER_COMPILER_DRIVER_H_
#include <set>
#include <string>
#include <vector>
#include "arch/instruction_set.h"
#include "base/arena_allocator.h"
#include "base/mutex.h"
#include "base/timing_logger.h"
#include "class_reference.h"
#include "compiler.h"
#include "dex_file.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/array_ref.h"
#include "utils/dedupe_set.h"
#include "utils/dex_cache_arrays_layout.h"
#include "utils/swap_space.h"
#include "utils.h"
namespace art {
namespace mirror {
class DexCache;
} // namespace mirror
namespace verifier {
class MethodVerifier;
} // namespace verifier
class CompiledClass;
class CompiledMethod;
class CompilerOptions;
class DexCompilationUnit;
class DexFileToMethodInlinerMap;
struct InlineIGetIPutData;
class InstructionSetFeatures;
class OatWriter;
class ParallelCompilationManager;
class ScopedObjectAccess;
template <class Allocator> class SrcMap;
class SrcMapElem;
using SwapSrcMap = SrcMap<SwapAllocator<SrcMapElem>>;
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 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.
};
std::ostream& operator<<(std::ostream& os, const DexToDexCompilationLevel& rhs);
static constexpr bool kUseMurmur3Hash = true;
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,
const InstructionSetFeatures* instruction_set_features,
bool image, std::set<std::string>* image_classes,
std::set<std::string>* compiled_classes,
size_t thread_count, bool dump_stats, bool dump_passes,
const std::string& dump_cfg_file_name,
CumulativeLogger* timer, int swap_fd,
const std::string& profile_file);
~CompilerDriver();
void CompileAll(jobject class_loader, const std::vector<const DexFile*>& dex_files,
TimingLogger* timings)
LOCKS_EXCLUDED(Locks::mutator_lock_);
CompiledMethod* CompileMethod(Thread* self, mirror::ArtMethod*)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) WARN_UNUSED;
// Compile a single Method.
void CompileOne(Thread* self, 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_;
}
const 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();
}
// 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>* 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_);
size_t GetNonRelativeLinkerPatchCount() const
LOCKS_EXCLUDED(compiled_methods_lock_);
// Remove and delete a compiled method.
void RemoveCompiledMethod(const MethodReference& method_ref);
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);
// Query methods for the java.lang.ref.Reference class.
bool CanEmbedReferenceTypeInCode(ClassReference* ref,
bool* use_direct_type_ptr, uintptr_t* direct_type_ptr);
uint32_t GetReferenceSlowFlagOffset() const;
uint32_t GetReferenceDisableFlagOffset() const;
// 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_);
mirror::Class* ResolveClass(
const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache,
Handle<mirror::ClassLoader> class_loader, uint16_t type_index,
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_);
// Resolve a field with a given dex file.
mirror::ArtField* ResolveFieldWithDexFile(
const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache,
Handle<mirror::ClassLoader> class_loader, const DexFile* dex_file,
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_);
MemberOffset GetFieldOffset(mirror::ArtField* field) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Find a dex cache for a dex file.
inline mirror::DexCache* FindDexCache(const DexFile* dex_file)
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 type index
// of the declaring class in the referrer's dex file.
std::pair<bool, bool> IsFastStaticField(
mirror::DexCache* dex_cache, mirror::Class* referrer_class,
mirror::ArtField* resolved_field, uint16_t field_idx, uint32_t* storage_index)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Is static field's in referrer's class?
bool IsStaticFieldInReferrerClass(mirror::Class* referrer_class, mirror::ArtField* resolved_field)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Is static field's class initialized?
bool IsStaticFieldsClassInitialized(mirror::Class* referrer_class,
mirror::ArtField* resolved_field)
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, bool check_incompatible_class_change = true)
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 the index in the vtable of the method.
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_);
// Is method's class initialized for an invoke?
// For static invokes to determine whether we need to consider potential call to <clinit>().
// For non-static invokes, assuming a non-null reference, the class is always initialized.
bool IsMethodsClassInitialized(mirror::Class* referrer_class, mirror::ArtMethod* resolved_method)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Get the layout of dex cache arrays for a dex file. Returns invalid layout if the
// dex cache arrays don't have a fixed layout.
DexCacheArraysLayout GetDexCacheArraysLayout(const DexFile* dex_file);
void ProcessedInstanceField(bool resolved);
void ProcessedStaticField(bool resolved, bool local);
void ProcessedInvoke(InvokeType invoke_type, int flags);
void ComputeFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit,
const ScopedObjectAccess& soa, bool is_static,
mirror::ArtField** resolved_field,
mirror::Class** referrer_class,
mirror::DexCache** dex_cache)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// 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,
Primitive::Type* type)
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);
bool GetSupportBootImageFixup() const {
return support_boot_image_fixup_;
}
void SetSupportBootImageFixup(bool support_boot_image_fixup) {
support_boot_image_fixup_ = support_boot_image_fixup;
}
SwapAllocator<void>& GetSwapSpaceAllocator() {
return *swap_space_allocator_.get();
}
bool WriteElf(const std::string& android_root,
bool is_host,
const std::vector<const DexFile*>& dex_files,
OatWriter* oat_writer,
File* file);
void SetCompilerContext(void* compiler_context) {
compiler_context_ = compiler_context;
}
void* GetCompilerContext() const {
return compiler_context_;
}
size_t GetThreadCount() const {
return thread_count_;
}
bool GetDumpPasses() const {
return dump_passes_;
}
const std::string& GetDumpCfgFileName() const {
return dump_cfg_file_name_;
}
CumulativeLogger* GetTimingsLogger() const {
return timings_logger_;
}
void SetDedupeEnabled(bool dedupe_enabled) {
dedupe_enabled_ = dedupe_enabled;
}
bool DedupeEnabled() const {
return dedupe_enabled_;
}
// Checks if class specified by type_idx is one of the image_classes_
bool IsImageClass(const char* descriptor) const;
// Checks if the provided class should be compiled, i.e., is in classes_to_compile_.
bool IsClassToCompile(const char* descriptor) const;
void RecordClassStatus(ClassReference ref, mirror::Class::Status status)
LOCKS_EXCLUDED(compiled_classes_lock_);
// Checks if the specified method has been verified without failures. Returns
// false if the method is not in the verification results (GetVerificationResults).
bool IsMethodVerifiedWithoutFailures(uint32_t method_idx, const DexFile& dex_file) const;
SwapVector<uint8_t>* DeduplicateCode(const ArrayRef<const uint8_t>& code);
SwapSrcMap* DeduplicateSrcMappingTable(const ArrayRef<SrcMapElem>& src_map);
SwapVector<uint8_t>* DeduplicateMappingTable(const ArrayRef<const uint8_t>& code);
SwapVector<uint8_t>* DeduplicateVMapTable(const ArrayRef<const uint8_t>& code);
SwapVector<uint8_t>* DeduplicateGCMap(const ArrayRef<const uint8_t>& code);
SwapVector<uint8_t>* DeduplicateCFIInfo(const ArrayRef<const uint8_t>& cfi_info);
// Should the compiler run on this method given profile information?
bool SkipCompilation(const std::string& method_name);
// Get memory usage during compilation.
std::string GetMemoryUsageString(bool extended) const;
void SetHadHardVerifierFailure() {
had_hard_verifier_failure_ = true;
}
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(/*out*/InvokeType* type,
InvokeType sharp_type,
bool no_guarantee_of_dex_cache_entry,
const mirror::Class* referrer_class,
mirror::ArtMethod* method,
/*out*/int* stats_flags,
MethodReference* target_method,
uintptr_t* direct_code, uintptr_t* direct_method)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
private:
DexToDexCompilationLevel GetDexToDexCompilationlevel(
Thread* self, Handle<mirror::ClassLoader> class_loader, const DexFile& dex_file,
const DexFile::ClassDef& class_def) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
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(Thread* self, 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,
bool compilation_enabled)
LOCKS_EXCLUDED(compiled_methods_lock_);
static void CompileClass(const ParallelCompilationManager* context, size_t class_def_index)
LOCKS_EXCLUDED(Locks::mutator_lock_);
// Swap pool and allocator used for native allocations. May be file-backed. Needs to be first
// as other fields rely on this.
std::unique_ptr<SwapSpace> swap_space_;
std::unique_ptr<SwapAllocator<void> > swap_space_allocator_;
ProfileFile profile_file_;
bool profile_present_;
const CompilerOptions* const compiler_options_;
VerificationResults* const verification_results_;
DexFileToMethodInlinerMap* const method_inliner_map_;
std::unique_ptr<Compiler> compiler_;
Compiler::Kind compiler_kind_;
const InstructionSet instruction_set_;
const InstructionSetFeatures* const 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_);
// Number of non-relative patches in all compiled methods. These patches need space
// in the .oat_patches ELF section if requested in the compiler options.
size_t non_relative_linker_patch_count_ 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_;
// If image_ is true, specifies the classes that will be compiled in
// the image. Note if classes_to_compile_ is nullptr, all classes are
// included in the image.
std::unique_ptr<std::set<std::string>> classes_to_compile_;
bool had_hard_verifier_failure_;
size_t thread_count_;
class AOTCompilationStats;
std::unique_ptr<AOTCompilationStats> stats_;
bool dedupe_enabled_;
bool dump_stats_;
const bool dump_passes_;
const std::string& dump_cfg_file_name_;
CumulativeLogger* const timings_logger_;
typedef void (*CompilerCallbackFn)(CompilerDriver& driver);
typedef MutexLock* (*CompilerMutexLockFn)(CompilerDriver& driver);
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_;
bool support_boot_image_fixup_;
// DeDuplication data structures, these own the corresponding byte arrays.
template <typename ContentType>
class DedupeHashFunc {
public:
size_t operator()(const ArrayRef<ContentType>& array) const {
const uint8_t* data = reinterpret_cast<const uint8_t*>(array.data());
static_assert(IsPowerOfTwo(sizeof(ContentType)),
"ContentType is not power of two, don't know whether array layout is as assumed");
uint32_t len = sizeof(ContentType) * array.size();
if (kUseMurmur3Hash) {
static constexpr uint32_t c1 = 0xcc9e2d51;
static constexpr uint32_t c2 = 0x1b873593;
static constexpr uint32_t r1 = 15;
static constexpr uint32_t r2 = 13;
static constexpr uint32_t m = 5;
static constexpr uint32_t n = 0xe6546b64;
uint32_t hash = 0;
const int nblocks = len / 4;
typedef __attribute__((__aligned__(1))) uint32_t unaligned_uint32_t;
const unaligned_uint32_t *blocks = reinterpret_cast<const uint32_t*>(data);
int i;
for (i = 0; i < nblocks; i++) {
uint32_t k = blocks[i];
k *= c1;
k = (k << r1) | (k >> (32 - r1));
k *= c2;
hash ^= k;
hash = ((hash << r2) | (hash >> (32 - r2))) * m + n;
}
const uint8_t *tail = reinterpret_cast<const uint8_t*>(data + nblocks * 4);
uint32_t k1 = 0;
switch (len & 3) {
case 3:
k1 ^= tail[2] << 16;
FALLTHROUGH_INTENDED;
case 2:
k1 ^= tail[1] << 8;
FALLTHROUGH_INTENDED;
case 1:
k1 ^= tail[0];
k1 *= c1;
k1 = (k1 << r1) | (k1 >> (32 - r1));
k1 *= c2;
hash ^= k1;
}
hash ^= len;
hash ^= (hash >> 16);
hash *= 0x85ebca6b;
hash ^= (hash >> 13);
hash *= 0xc2b2ae35;
hash ^= (hash >> 16);
return hash;
} else {
size_t hash = 0x811c9dc5;
for (uint32_t i = 0; i < len; ++i) {
hash = (hash * 16777619) ^ data[i];
}
hash += hash << 13;
hash ^= hash >> 7;
hash += hash << 3;
hash ^= hash >> 17;
hash += hash << 5;
return hash;
}
}
};
DedupeSet<ArrayRef<const uint8_t>,
SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_code_;
DedupeSet<ArrayRef<SrcMapElem>,
SwapSrcMap, size_t, DedupeHashFunc<SrcMapElem>, 4> dedupe_src_mapping_table_;
DedupeSet<ArrayRef<const uint8_t>,
SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_mapping_table_;
DedupeSet<ArrayRef<const uint8_t>,
SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_vmap_table_;
DedupeSet<ArrayRef<const uint8_t>,
SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_gc_map_;
DedupeSet<ArrayRef<const uint8_t>,
SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_cfi_info_;
DISALLOW_COPY_AND_ASSIGN(CompilerDriver);
};
} // namespace art
#endif // ART_COMPILER_DRIVER_COMPILER_DRIVER_H_