| /* |
| * Copyright (C) 2015 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 "unstarted_runtime.h" |
| |
| #include <cmath> |
| #include <unordered_map> |
| |
| #include "base/logging.h" |
| #include "base/macros.h" |
| #include "class_linker.h" |
| #include "common_throws.h" |
| #include "entrypoints/entrypoint_utils-inl.h" |
| #include "handle_scope-inl.h" |
| #include "interpreter/interpreter_common.h" |
| #include "mirror/array-inl.h" |
| #include "mirror/art_method-inl.h" |
| #include "mirror/class.h" |
| #include "mirror/object-inl.h" |
| #include "mirror/object_array-inl.h" |
| #include "mirror/string-inl.h" |
| #include "nth_caller_visitor.h" |
| #include "thread.h" |
| #include "well_known_classes.h" |
| |
| namespace art { |
| namespace interpreter { |
| |
| static void AbortTransactionOrFail(Thread* self, const char* fmt, ...) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| va_list args; |
| va_start(args, fmt); |
| if (Runtime::Current()->IsActiveTransaction()) { |
| AbortTransaction(self, fmt, args); |
| va_end(args); |
| } else { |
| LOG(FATAL) << "Trying to abort, but not in transaction mode: " << StringPrintf(fmt, args); |
| UNREACHABLE(); |
| } |
| } |
| |
| // Helper function to deal with class loading in an unstarted runtime. |
| static void UnstartedRuntimeFindClass(Thread* self, Handle<mirror::String> className, |
| Handle<mirror::ClassLoader> class_loader, JValue* result, |
| const std::string& method_name, bool initialize_class, |
| bool abort_if_not_found) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| CHECK(className.Get() != nullptr); |
| std::string descriptor(DotToDescriptor(className->ToModifiedUtf8().c_str())); |
| ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| |
| mirror::Class* found = class_linker->FindClass(self, descriptor.c_str(), class_loader); |
| if (found == nullptr && abort_if_not_found) { |
| if (!self->IsExceptionPending()) { |
| AbortTransactionOrFail(self, "%s failed in un-started runtime for class: %s", |
| method_name.c_str(), PrettyDescriptor(descriptor.c_str()).c_str()); |
| } |
| return; |
| } |
| if (found != nullptr && initialize_class) { |
| StackHandleScope<1> hs(self); |
| Handle<mirror::Class> h_class(hs.NewHandle(found)); |
| if (!class_linker->EnsureInitialized(self, h_class, true, true)) { |
| CHECK(self->IsExceptionPending()); |
| return; |
| } |
| } |
| result->SetL(found); |
| } |
| |
| // Common helper for class-loading cutouts in an unstarted runtime. We call Runtime methods that |
| // rely on Java code to wrap errors in the correct exception class (i.e., NoClassDefFoundError into |
| // ClassNotFoundException), so need to do the same. The only exception is if the exception is |
| // actually InternalError. This must not be wrapped, as it signals an initialization abort. |
| static void CheckExceptionGenerateClassNotFound(Thread* self) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| if (self->IsExceptionPending()) { |
| // If it is not an InternalError, wrap it. |
| std::string type(PrettyTypeOf(self->GetException())); |
| if (type != "java.lang.InternalError") { |
| self->ThrowNewWrappedException("Ljava/lang/ClassNotFoundException;", |
| "ClassNotFoundException"); |
| } |
| } |
| } |
| |
| static void UnstartedClassForName(Thread* self, ShadowFrame* shadow_frame, JValue* result, |
| size_t arg_offset) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| mirror::String* class_name = shadow_frame->GetVRegReference(arg_offset)->AsString(); |
| StackHandleScope<1> hs(self); |
| Handle<mirror::String> h_class_name(hs.NewHandle(class_name)); |
| UnstartedRuntimeFindClass(self, h_class_name, NullHandle<mirror::ClassLoader>(), result, |
| "Class.forName", true, false); |
| CheckExceptionGenerateClassNotFound(self); |
| } |
| |
| static void UnstartedClassForNameLong(Thread* self, ShadowFrame* shadow_frame, JValue* result, |
| size_t arg_offset) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| mirror::String* class_name = shadow_frame->GetVRegReference(arg_offset)->AsString(); |
| bool initialize_class = shadow_frame->GetVReg(arg_offset + 1) != 0; |
| mirror::ClassLoader* class_loader = |
| down_cast<mirror::ClassLoader*>(shadow_frame->GetVRegReference(arg_offset + 2)); |
| StackHandleScope<2> hs(self); |
| Handle<mirror::String> h_class_name(hs.NewHandle(class_name)); |
| Handle<mirror::ClassLoader> h_class_loader(hs.NewHandle(class_loader)); |
| UnstartedRuntimeFindClass(self, h_class_name, h_class_loader, result, "Class.forName", |
| initialize_class, false); |
| CheckExceptionGenerateClassNotFound(self); |
| } |
| |
| static void UnstartedClassClassForName(Thread* self, ShadowFrame* shadow_frame, JValue* result, |
| size_t arg_offset) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| mirror::String* class_name = shadow_frame->GetVRegReference(arg_offset)->AsString(); |
| bool initialize_class = shadow_frame->GetVReg(arg_offset + 1) != 0; |
| mirror::ClassLoader* class_loader = |
| down_cast<mirror::ClassLoader*>(shadow_frame->GetVRegReference(arg_offset + 2)); |
| StackHandleScope<2> hs(self); |
| Handle<mirror::String> h_class_name(hs.NewHandle(class_name)); |
| Handle<mirror::ClassLoader> h_class_loader(hs.NewHandle(class_loader)); |
| UnstartedRuntimeFindClass(self, h_class_name, h_class_loader, result, "Class.classForName", |
| initialize_class, false); |
| CheckExceptionGenerateClassNotFound(self); |
| } |
| |
| static void UnstartedClassNewInstance(Thread* self, ShadowFrame* shadow_frame, JValue* result, |
| size_t arg_offset) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| StackHandleScope<3> hs(self); // Class, constructor, object. |
| mirror::Class* klass = shadow_frame->GetVRegReference(arg_offset)->AsClass(); |
| Handle<mirror::Class> h_klass(hs.NewHandle(klass)); |
| // There are two situations in which we'll abort this run. |
| // 1) If the class isn't yet initialized and initialization fails. |
| // 2) If we can't find the default constructor. We'll postpone the exception to runtime. |
| // Note that 2) could likely be handled here, but for safety abort the transaction. |
| bool ok = false; |
| if (Runtime::Current()->GetClassLinker()->EnsureInitialized(self, h_klass, true, true)) { |
| Handle<mirror::ArtMethod> h_cons(hs.NewHandle( |
| h_klass->FindDeclaredDirectMethod("<init>", "()V"))); |
| if (h_cons.Get() != nullptr) { |
| Handle<mirror::Object> h_obj(hs.NewHandle(klass->AllocObject(self))); |
| CHECK(h_obj.Get() != nullptr); // We don't expect OOM at compile-time. |
| EnterInterpreterFromInvoke(self, h_cons.Get(), h_obj.Get(), nullptr, nullptr); |
| if (!self->IsExceptionPending()) { |
| result->SetL(h_obj.Get()); |
| ok = true; |
| } |
| } else { |
| self->ThrowNewExceptionF("Ljava/lang/InternalError;", |
| "Could not find default constructor for '%s'", |
| PrettyClass(h_klass.Get()).c_str()); |
| } |
| } |
| if (!ok) { |
| AbortTransactionOrFail(self, "Failed in Class.newInstance for '%s' with %s", |
| PrettyClass(h_klass.Get()).c_str(), |
| PrettyTypeOf(self->GetException()).c_str()); |
| } |
| } |
| |
| static void UnstartedClassGetDeclaredField(Thread* self, ShadowFrame* shadow_frame, JValue* result, |
| size_t arg_offset) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| // Special managed code cut-out to allow field lookup in a un-started runtime that'd fail |
| // going the reflective Dex way. |
| mirror::Class* klass = shadow_frame->GetVRegReference(arg_offset)->AsClass(); |
| mirror::String* name2 = shadow_frame->GetVRegReference(arg_offset + 1)->AsString(); |
| mirror::ArtField* found = nullptr; |
| mirror::ObjectArray<mirror::ArtField>* fields = klass->GetIFields(); |
| for (int32_t i = 0; i < fields->GetLength() && found == nullptr; ++i) { |
| mirror::ArtField* f = fields->Get(i); |
| if (name2->Equals(f->GetName())) { |
| found = f; |
| } |
| } |
| if (found == nullptr) { |
| fields = klass->GetSFields(); |
| for (int32_t i = 0; i < fields->GetLength() && found == nullptr; ++i) { |
| mirror::ArtField* f = fields->Get(i); |
| if (name2->Equals(f->GetName())) { |
| found = f; |
| } |
| } |
| } |
| if (found == nullptr) { |
| AbortTransactionOrFail(self, "Failed to find field in Class.getDeclaredField in un-started " |
| " runtime. name=%s class=%s", name2->ToModifiedUtf8().c_str(), |
| PrettyDescriptor(klass).c_str()); |
| return; |
| } |
| // TODO: getDeclaredField calls GetType once the field is found to ensure a |
| // NoClassDefFoundError is thrown if the field's type cannot be resolved. |
| mirror::Class* jlr_Field = self->DecodeJObject( |
| WellKnownClasses::java_lang_reflect_Field)->AsClass(); |
| StackHandleScope<1> hs(self); |
| Handle<mirror::Object> field(hs.NewHandle(jlr_Field->AllocNonMovableObject(self))); |
| CHECK(field.Get() != nullptr); |
| mirror::ArtMethod* c = jlr_Field->FindDeclaredDirectMethod("<init>", |
| "(Ljava/lang/reflect/ArtField;)V"); |
| uint32_t args[1]; |
| args[0] = StackReference<mirror::Object>::FromMirrorPtr(found).AsVRegValue(); |
| EnterInterpreterFromInvoke(self, c, field.Get(), args, nullptr); |
| result->SetL(field.Get()); |
| } |
| |
| static void UnstartedVmClassLoaderFindLoadedClass(Thread* self, ShadowFrame* shadow_frame, |
| JValue* result, size_t arg_offset) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| mirror::String* class_name = shadow_frame->GetVRegReference(arg_offset + 1)->AsString(); |
| mirror::ClassLoader* class_loader = |
| down_cast<mirror::ClassLoader*>(shadow_frame->GetVRegReference(arg_offset)); |
| StackHandleScope<2> hs(self); |
| Handle<mirror::String> h_class_name(hs.NewHandle(class_name)); |
| Handle<mirror::ClassLoader> h_class_loader(hs.NewHandle(class_loader)); |
| UnstartedRuntimeFindClass(self, h_class_name, h_class_loader, result, |
| "VMClassLoader.findLoadedClass", false, false); |
| // This might have an error pending. But semantics are to just return null. |
| if (self->IsExceptionPending()) { |
| // If it is an InternalError, keep it. See CheckExceptionGenerateClassNotFound. |
| std::string type(PrettyTypeOf(self->GetException())); |
| if (type != "java.lang.InternalError") { |
| self->ClearException(); |
| } |
| } |
| } |
| |
| static void UnstartedVoidLookupType(Thread* self ATTRIBUTE_UNUSED, |
| ShadowFrame* shadow_frame ATTRIBUTE_UNUSED, |
| JValue* result, |
| size_t arg_offset ATTRIBUTE_UNUSED) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| result->SetL(Runtime::Current()->GetClassLinker()->FindPrimitiveClass('V')); |
| } |
| |
| static void UnstartedSystemArraycopy(Thread* self, ShadowFrame* shadow_frame, |
| JValue* result ATTRIBUTE_UNUSED, size_t arg_offset) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| // Special case array copying without initializing System. |
| mirror::Class* ctype = shadow_frame->GetVRegReference(arg_offset)->GetClass()->GetComponentType(); |
| jint srcPos = shadow_frame->GetVReg(arg_offset + 1); |
| jint dstPos = shadow_frame->GetVReg(arg_offset + 3); |
| jint length = shadow_frame->GetVReg(arg_offset + 4); |
| if (!ctype->IsPrimitive()) { |
| mirror::ObjectArray<mirror::Object>* src = shadow_frame->GetVRegReference(arg_offset)-> |
| AsObjectArray<mirror::Object>(); |
| mirror::ObjectArray<mirror::Object>* dst = shadow_frame->GetVRegReference(arg_offset + 2)-> |
| AsObjectArray<mirror::Object>(); |
| for (jint i = 0; i < length; ++i) { |
| dst->Set(dstPos + i, src->Get(srcPos + i)); |
| } |
| } else if (ctype->IsPrimitiveChar()) { |
| mirror::CharArray* src = shadow_frame->GetVRegReference(arg_offset)->AsCharArray(); |
| mirror::CharArray* dst = shadow_frame->GetVRegReference(arg_offset + 2)->AsCharArray(); |
| for (jint i = 0; i < length; ++i) { |
| dst->Set(dstPos + i, src->Get(srcPos + i)); |
| } |
| } else if (ctype->IsPrimitiveInt()) { |
| mirror::IntArray* src = shadow_frame->GetVRegReference(arg_offset)->AsIntArray(); |
| mirror::IntArray* dst = shadow_frame->GetVRegReference(arg_offset + 2)->AsIntArray(); |
| for (jint i = 0; i < length; ++i) { |
| dst->Set(dstPos + i, src->Get(srcPos + i)); |
| } |
| } else { |
| AbortTransactionOrFail(self, "Unimplemented System.arraycopy for type '%s'", |
| PrettyDescriptor(ctype).c_str()); |
| } |
| } |
| |
| static void UnstartedThreadLocalGet(Thread* self, ShadowFrame* shadow_frame, JValue* result, |
| size_t arg_offset ATTRIBUTE_UNUSED) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| std::string caller(PrettyMethod(shadow_frame->GetLink()->GetMethod())); |
| bool ok = false; |
| if (caller == "java.lang.String java.lang.IntegralToString.convertInt" |
| "(java.lang.AbstractStringBuilder, int)") { |
| // Allocate non-threadlocal buffer. |
| result->SetL(mirror::CharArray::Alloc(self, 11)); |
| ok = true; |
| } else if (caller == "java.lang.RealToString java.lang.RealToString.getInstance()") { |
| // Note: RealToString is implemented and used in a different fashion than IntegralToString. |
| // Conversion is done over an actual object of RealToString (the conversion method is an |
| // instance method). This means it is not as clear whether it is correct to return a new |
| // object each time. The caller needs to be inspected by hand to see whether it (incorrectly) |
| // stores the object for later use. |
| // See also b/19548084 for a possible rewrite and bringing it in line with IntegralToString. |
| if (shadow_frame->GetLink()->GetLink() != nullptr) { |
| std::string caller2(PrettyMethod(shadow_frame->GetLink()->GetLink()->GetMethod())); |
| if (caller2 == "java.lang.String java.lang.Double.toString(double)") { |
| // Allocate new object. |
| StackHandleScope<2> hs(self); |
| Handle<mirror::Class> h_real_to_string_class(hs.NewHandle( |
| shadow_frame->GetLink()->GetMethod()->GetDeclaringClass())); |
| Handle<mirror::Object> h_real_to_string_obj(hs.NewHandle( |
| h_real_to_string_class->AllocObject(self))); |
| if (h_real_to_string_obj.Get() != nullptr) { |
| mirror::ArtMethod* init_method = |
| h_real_to_string_class->FindDirectMethod("<init>", "()V"); |
| if (init_method == nullptr) { |
| h_real_to_string_class->DumpClass(LOG(FATAL), mirror::Class::kDumpClassFullDetail); |
| } else { |
| JValue invoke_result; |
| EnterInterpreterFromInvoke(self, init_method, h_real_to_string_obj.Get(), nullptr, |
| nullptr); |
| if (!self->IsExceptionPending()) { |
| result->SetL(h_real_to_string_obj.Get()); |
| ok = true; |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| if (!ok) { |
| AbortTransactionOrFail(self, "Could not create RealToString object"); |
| } |
| } |
| |
| static void UnstartedMathCeil(Thread* self ATTRIBUTE_UNUSED, ShadowFrame* shadow_frame, |
| JValue* result, size_t arg_offset) { |
| double in = shadow_frame->GetVRegDouble(arg_offset); |
| double out; |
| // Special cases: |
| // 1) NaN, infinity, +0, -0 -> out := in. All are guaranteed by cmath. |
| // -1 < in < 0 -> out := -0. |
| if (-1.0 < in && in < 0) { |
| out = -0.0; |
| } else { |
| out = ceil(in); |
| } |
| result->SetD(out); |
| } |
| |
| static void UnstartedArtMethodGetMethodName(Thread* self, ShadowFrame* shadow_frame, |
| JValue* result, size_t arg_offset) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| mirror::ArtMethod* method = shadow_frame->GetVRegReference(arg_offset)->AsArtMethod(); |
| result->SetL(method->GetNameAsString(self)); |
| } |
| |
| static void UnstartedObjectHashCode(Thread* self ATTRIBUTE_UNUSED, ShadowFrame* shadow_frame, |
| JValue* result, size_t arg_offset) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| mirror::Object* obj = shadow_frame->GetVRegReference(arg_offset); |
| result->SetI(obj->IdentityHashCode()); |
| } |
| |
| static void UnstartedDoubleDoubleToRawLongBits(Thread* self ATTRIBUTE_UNUSED, |
| ShadowFrame* shadow_frame, JValue* result, |
| size_t arg_offset) { |
| double in = shadow_frame->GetVRegDouble(arg_offset); |
| result->SetJ(bit_cast<int64_t>(in)); |
| } |
| |
| static void UnstartedJNIVMRuntimeNewUnpaddedArray(Thread* self, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args, |
| JValue* result) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| int32_t length = args[1]; |
| DCHECK_GE(length, 0); |
| mirror::Class* element_class = reinterpret_cast<mirror::Object*>(args[0])->AsClass(); |
| Runtime* runtime = Runtime::Current(); |
| mirror::Class* array_class = runtime->GetClassLinker()->FindArrayClass(self, &element_class); |
| DCHECK(array_class != nullptr); |
| gc::AllocatorType allocator = runtime->GetHeap()->GetCurrentAllocator(); |
| result->SetL(mirror::Array::Alloc<true, true>(self, array_class, length, |
| array_class->GetComponentSizeShift(), allocator)); |
| } |
| |
| static void UnstartedJNIVMStackGetCallingClassLoader(Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args ATTRIBUTE_UNUSED, |
| JValue* result) { |
| result->SetL(nullptr); |
| } |
| |
| static void UnstartedJNIVMStackGetStackClass2(Thread* self, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args ATTRIBUTE_UNUSED, |
| JValue* result) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| NthCallerVisitor visitor(self, 3); |
| visitor.WalkStack(); |
| if (visitor.caller != nullptr) { |
| result->SetL(visitor.caller->GetDeclaringClass()); |
| } |
| } |
| |
| static void UnstartedJNIMathLog(Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args, |
| JValue* result) { |
| JValue value; |
| value.SetJ((static_cast<uint64_t>(args[1]) << 32) | args[0]); |
| result->SetD(log(value.GetD())); |
| } |
| |
| static void UnstartedJNIMathExp(Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args, |
| JValue* result) { |
| JValue value; |
| value.SetJ((static_cast<uint64_t>(args[1]) << 32) | args[0]); |
| result->SetD(exp(value.GetD())); |
| } |
| |
| static void UnstartedJNIClassGetNameNative(Thread* self, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver, |
| uint32_t* args ATTRIBUTE_UNUSED, |
| JValue* result) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| StackHandleScope<1> hs(self); |
| result->SetL(mirror::Class::ComputeName(hs.NewHandle(receiver->AsClass()))); |
| } |
| |
| static void UnstartedJNIFloatFloatToRawIntBits(Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args, |
| JValue* result) { |
| result->SetI(args[0]); |
| } |
| |
| static void UnstartedJNIFloatIntBitsToFloat(Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args, |
| JValue* result) { |
| result->SetI(args[0]); |
| } |
| |
| static void UnstartedJNIObjectInternalClone(Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver, |
| uint32_t* args ATTRIBUTE_UNUSED, |
| JValue* result) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| result->SetL(receiver->Clone(self)); |
| } |
| |
| static void UnstartedJNIObjectNotifyAll(Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver, |
| uint32_t* args ATTRIBUTE_UNUSED, |
| JValue* result ATTRIBUTE_UNUSED) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| receiver->NotifyAll(self); |
| } |
| |
| static void UnstartedJNIStringCompareTo(Thread* self, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver, |
| uint32_t* args, |
| JValue* result) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| mirror::String* rhs = reinterpret_cast<mirror::Object*>(args[0])->AsString(); |
| if (rhs == nullptr) { |
| AbortTransactionOrFail(self, "String.compareTo with null object"); |
| } |
| result->SetI(receiver->AsString()->CompareTo(rhs)); |
| } |
| |
| static void UnstartedJNIStringIntern(Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver, |
| uint32_t* args ATTRIBUTE_UNUSED, |
| JValue* result) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| result->SetL(receiver->AsString()->Intern()); |
| } |
| |
| static void UnstartedJNIStringFastIndexOf(Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver, |
| uint32_t* args, |
| JValue* result) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| result->SetI(receiver->AsString()->FastIndexOf(args[0], args[1])); |
| } |
| |
| static void UnstartedJNIArrayCreateMultiArray(Thread* self, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args, |
| JValue* result) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| StackHandleScope<2> hs(self); |
| auto h_class(hs.NewHandle(reinterpret_cast<mirror::Class*>(args[0])->AsClass())); |
| auto h_dimensions(hs.NewHandle(reinterpret_cast<mirror::IntArray*>(args[1])->AsIntArray())); |
| result->SetL(mirror::Array::CreateMultiArray(self, h_class, h_dimensions)); |
| } |
| |
| static void UnstartedJNIThrowableNativeFillInStackTrace(Thread* self, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args ATTRIBUTE_UNUSED, |
| JValue* result) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| ScopedObjectAccessUnchecked soa(self); |
| if (Runtime::Current()->IsActiveTransaction()) { |
| result->SetL(soa.Decode<mirror::Object*>(self->CreateInternalStackTrace<true>(soa))); |
| } else { |
| result->SetL(soa.Decode<mirror::Object*>(self->CreateInternalStackTrace<false>(soa))); |
| } |
| } |
| |
| static void UnstartedJNISystemIdentityHashCode(Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args, |
| JValue* result) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| mirror::Object* obj = reinterpret_cast<mirror::Object*>(args[0]); |
| result->SetI((obj != nullptr) ? obj->IdentityHashCode() : 0); |
| } |
| |
| static void UnstartedJNIByteOrderIsLittleEndian(Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args ATTRIBUTE_UNUSED, |
| JValue* result) { |
| result->SetZ(JNI_TRUE); |
| } |
| |
| static void UnstartedJNIUnsafeCompareAndSwapInt(Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args, |
| JValue* result) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| mirror::Object* obj = reinterpret_cast<mirror::Object*>(args[0]); |
| jlong offset = (static_cast<uint64_t>(args[2]) << 32) | args[1]; |
| jint expectedValue = args[3]; |
| jint newValue = args[4]; |
| bool success; |
| if (Runtime::Current()->IsActiveTransaction()) { |
| success = obj->CasFieldStrongSequentiallyConsistent32<true>(MemberOffset(offset), |
| expectedValue, newValue); |
| } else { |
| success = obj->CasFieldStrongSequentiallyConsistent32<false>(MemberOffset(offset), |
| expectedValue, newValue); |
| } |
| result->SetZ(success ? JNI_TRUE : JNI_FALSE); |
| } |
| |
| static void UnstartedJNIUnsafePutObject(Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args, |
| JValue* result ATTRIBUTE_UNUSED) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| mirror::Object* obj = reinterpret_cast<mirror::Object*>(args[0]); |
| jlong offset = (static_cast<uint64_t>(args[2]) << 32) | args[1]; |
| mirror::Object* newValue = reinterpret_cast<mirror::Object*>(args[3]); |
| if (Runtime::Current()->IsActiveTransaction()) { |
| obj->SetFieldObject<true>(MemberOffset(offset), newValue); |
| } else { |
| obj->SetFieldObject<false>(MemberOffset(offset), newValue); |
| } |
| } |
| |
| static void UnstartedJNIUnsafeGetArrayBaseOffsetForComponentType( |
| Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args, |
| JValue* result) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| mirror::Class* component = reinterpret_cast<mirror::Object*>(args[0])->AsClass(); |
| Primitive::Type primitive_type = component->GetPrimitiveType(); |
| result->SetI(mirror::Array::DataOffset(Primitive::ComponentSize(primitive_type)).Int32Value()); |
| } |
| |
| static void UnstartedJNIUnsafeGetArrayIndexScaleForComponentType( |
| Thread* self ATTRIBUTE_UNUSED, |
| mirror::ArtMethod* method ATTRIBUTE_UNUSED, |
| mirror::Object* receiver ATTRIBUTE_UNUSED, |
| uint32_t* args, |
| JValue* result) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| mirror::Class* component = reinterpret_cast<mirror::Object*>(args[0])->AsClass(); |
| Primitive::Type primitive_type = component->GetPrimitiveType(); |
| result->SetI(Primitive::ComponentSize(primitive_type)); |
| } |
| |
| typedef void(*InvokeHandler)(Thread* self, ShadowFrame* shadow_frame, JValue* result, |
| size_t arg_size); |
| |
| typedef void(*JNIHandler)(Thread* self, mirror::ArtMethod* method, mirror::Object* receiver, |
| uint32_t* args, JValue* result); |
| |
| static bool tables_initialized_ = false; |
| static std::unordered_map<std::string, InvokeHandler> invoke_handlers_; |
| static std::unordered_map<std::string, JNIHandler> jni_handlers_; |
| |
| static void UnstartedRuntimeInitializeInvokeHandlers() { |
| struct InvokeHandlerDef { |
| std::string name; |
| InvokeHandler function; |
| }; |
| |
| InvokeHandlerDef defs[] { |
| { "java.lang.Class java.lang.Class.forName(java.lang.String)", |
| &UnstartedClassForName }, |
| { "java.lang.Class java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader)", |
| &UnstartedClassForNameLong }, |
| { "java.lang.Class java.lang.Class.classForName(java.lang.String, boolean, java.lang.ClassLoader)", |
| &UnstartedClassClassForName }, |
| { "java.lang.Class java.lang.VMClassLoader.findLoadedClass(java.lang.ClassLoader, java.lang.String)", |
| &UnstartedVmClassLoaderFindLoadedClass }, |
| { "java.lang.Class java.lang.Void.lookupType()", |
| &UnstartedVoidLookupType }, |
| { "java.lang.Object java.lang.Class.newInstance()", |
| &UnstartedClassNewInstance }, |
| { "java.lang.reflect.Field java.lang.Class.getDeclaredField(java.lang.String)", |
| &UnstartedClassGetDeclaredField }, |
| { "int java.lang.Object.hashCode()", |
| &UnstartedObjectHashCode }, |
| { "java.lang.String java.lang.reflect.ArtMethod.getMethodName(java.lang.reflect.ArtMethod)", |
| &UnstartedArtMethodGetMethodName }, |
| { "void java.lang.System.arraycopy(java.lang.Object, int, java.lang.Object, int, int)", |
| &UnstartedSystemArraycopy}, |
| { "void java.lang.System.arraycopy(char[], int, char[], int, int)", |
| &UnstartedSystemArraycopy }, |
| { "void java.lang.System.arraycopy(int[], int, int[], int, int)", |
| &UnstartedSystemArraycopy }, |
| { "long java.lang.Double.doubleToRawLongBits(double)", |
| &UnstartedDoubleDoubleToRawLongBits }, |
| { "double java.lang.Math.ceil(double)", |
| &UnstartedMathCeil }, |
| { "java.lang.Object java.lang.ThreadLocal.get()", |
| &UnstartedThreadLocalGet }, |
| }; |
| |
| for (auto& def : defs) { |
| invoke_handlers_.insert(std::make_pair(def.name, def.function)); |
| } |
| } |
| |
| static void UnstartedRuntimeInitializeJNIHandlers() { |
| struct JNIHandlerDef { |
| std::string name; |
| JNIHandler function; |
| }; |
| |
| JNIHandlerDef defs[] { |
| { "java.lang.Object dalvik.system.VMRuntime.newUnpaddedArray(java.lang.Class, int)", |
| &UnstartedJNIVMRuntimeNewUnpaddedArray }, |
| { "java.lang.ClassLoader dalvik.system.VMStack.getCallingClassLoader()", |
| &UnstartedJNIVMStackGetCallingClassLoader }, |
| { "java.lang.Class dalvik.system.VMStack.getStackClass2()", |
| &UnstartedJNIVMStackGetStackClass2 }, |
| { "double java.lang.Math.log(double)", |
| &UnstartedJNIMathLog }, |
| { "java.lang.String java.lang.Class.getNameNative()", |
| &UnstartedJNIClassGetNameNative }, |
| { "int java.lang.Float.floatToRawIntBits(float)", |
| &UnstartedJNIFloatFloatToRawIntBits }, |
| { "float java.lang.Float.intBitsToFloat(int)", |
| &UnstartedJNIFloatIntBitsToFloat }, |
| { "double java.lang.Math.exp(double)", |
| &UnstartedJNIMathExp }, |
| { "java.lang.Object java.lang.Object.internalClone()", |
| &UnstartedJNIObjectInternalClone }, |
| { "void java.lang.Object.notifyAll()", |
| &UnstartedJNIObjectNotifyAll}, |
| { "int java.lang.String.compareTo(java.lang.String)", |
| &UnstartedJNIStringCompareTo }, |
| { "java.lang.String java.lang.String.intern()", |
| &UnstartedJNIStringIntern }, |
| { "int java.lang.String.fastIndexOf(int, int)", |
| &UnstartedJNIStringFastIndexOf }, |
| { "java.lang.Object java.lang.reflect.Array.createMultiArray(java.lang.Class, int[])", |
| &UnstartedJNIArrayCreateMultiArray }, |
| { "java.lang.Object java.lang.Throwable.nativeFillInStackTrace()", |
| &UnstartedJNIThrowableNativeFillInStackTrace }, |
| { "int java.lang.System.identityHashCode(java.lang.Object)", |
| &UnstartedJNISystemIdentityHashCode }, |
| { "boolean java.nio.ByteOrder.isLittleEndian()", |
| &UnstartedJNIByteOrderIsLittleEndian }, |
| { "boolean sun.misc.Unsafe.compareAndSwapInt(java.lang.Object, long, int, int)", |
| &UnstartedJNIUnsafeCompareAndSwapInt }, |
| { "void sun.misc.Unsafe.putObject(java.lang.Object, long, java.lang.Object)", |
| &UnstartedJNIUnsafePutObject }, |
| { "int sun.misc.Unsafe.getArrayBaseOffsetForComponentType(java.lang.Class)", |
| &UnstartedJNIUnsafeGetArrayBaseOffsetForComponentType }, |
| { "int sun.misc.Unsafe.getArrayIndexScaleForComponentType(java.lang.Class)", |
| &UnstartedJNIUnsafeGetArrayIndexScaleForComponentType }, |
| }; |
| |
| for (auto& def : defs) { |
| jni_handlers_.insert(std::make_pair(def.name, def.function)); |
| } |
| } |
| |
| void UnstartedRuntimeInitialize() { |
| CHECK(!tables_initialized_); |
| |
| UnstartedRuntimeInitializeInvokeHandlers(); |
| UnstartedRuntimeInitializeJNIHandlers(); |
| |
| tables_initialized_ = true; |
| } |
| |
| void UnstartedRuntimeInvoke(Thread* self, const DexFile::CodeItem* code_item, |
| ShadowFrame* shadow_frame, JValue* result, size_t arg_offset) { |
| // In a runtime that's not started we intercept certain methods to avoid complicated dependency |
| // problems in core libraries. |
| CHECK(tables_initialized_); |
| |
| std::string name(PrettyMethod(shadow_frame->GetMethod())); |
| const auto& iter = invoke_handlers_.find(name); |
| if (iter != invoke_handlers_.end()) { |
| (*iter->second)(self, shadow_frame, result, arg_offset); |
| } else { |
| // Not special, continue with regular interpreter execution. |
| artInterpreterToInterpreterBridge(self, code_item, shadow_frame, result); |
| } |
| } |
| |
| // Hand select a number of methods to be run in a not yet started runtime without using JNI. |
| void UnstartedRuntimeJni(Thread* self, mirror::ArtMethod* method, mirror::Object* receiver, |
| uint32_t* args, JValue* result) { |
| std::string name(PrettyMethod(method)); |
| const auto& iter = jni_handlers_.find(name); |
| if (iter != jni_handlers_.end()) { |
| (*iter->second)(self, method, receiver, args, result); |
| } else if (Runtime::Current()->IsActiveTransaction()) { |
| AbortTransaction(self, "Attempt to invoke native method in non-started runtime: %s", |
| name.c_str()); |
| } else { |
| LOG(FATAL) << "Calling native method " << PrettyMethod(method) << " in an unstarted " |
| "non-transactional runtime"; |
| } |
| } |
| |
| } // namespace interpreter |
| } // namespace art |