12d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao/* 20f3c55331439970e01af67f80ac117c473bc04cfElliott Hughes * Copyright (C) 2012 The Android Open Source Project 32d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao * 42d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao * Licensed under the Apache License, Version 2.0 (the "License"); 52d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao * you may not use this file except in compliance with the License. 62d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao * You may obtain a copy of the License at 72d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao * 82d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao * http://www.apache.org/licenses/LICENSE-2.0 92d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao * 102d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao * Unless required by applicable law or agreed to in writing, software 112d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao * distributed under the License is distributed on an "AS IS" BASIS, 122d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 132d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao * See the License for the specific language governing permissions and 142d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao * limitations under the License. 152d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao */ 162d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao 177655f29fabc0a12765de828914a18314382e5a35Ian Rogers#include "entrypoints/entrypoint_utils.h" 182d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao 1998d1cc8033251c93786e2fa8c59a2e555a9493beMingyao Yang#include "base/mutex.h" 202dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "class_linker-inl.h" 214f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers#include "dex_file-inl.h" 221d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/accounting/card_table-inl.h" 23e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers#include "method_helper-inl.h" 24ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom#include "mirror/art_field-inl.h" 25ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom#include "mirror/art_method-inl.h" 262dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class-inl.h" 272dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/object-inl.h" 282dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/object_array-inl.h" 29af6e67a4816d2593586115b89faa659225363246Ian Rogers#include "reflection.h" 30af6e67a4816d2593586115b89faa659225363246Ian Rogers#include "scoped_thread_state_change.h" 315bb8601175bbb9cd761c715f4ba04f84d65e913bTDYa#include "ScopedLocalRef.h" 32eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes#include "well_known_classes.h" 335bb8601175bbb9cd761c715f4ba04f84d65e913bTDYa 3441005ddb5576b8630a1084fbb3979ffa602c0599jeffhaonamespace art { 3541005ddb5576b8630a1084fbb3979ffa602c0599jeffhao 36bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstromstatic inline mirror::Class* CheckFilledNewArrayAlloc(uint32_t type_idx, 37bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom mirror::ArtMethod* referrer, 38bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom int32_t component_count, 39bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom Thread* self, 40cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier bool access_check) 413b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 4257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(component_count < 0)) { 4362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNegativeArraySizeException(component_count); 44cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier return nullptr; // Failure 45ea2a11d5f20814f17985ae3d4defc8dd843f19b9Ian Rogers } 464ef12f5b0e26c6016c87866f6a33da5ed8e98d74Andreas Gampe mirror::Class* klass = referrer->GetDexCacheResolvedType<false>(type_idx); 4757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(klass == NULL)) { // Not in dex cache so try to resolve 4862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers klass = Runtime::Current()->GetClassLinker()->ResolveType(type_idx, referrer); 4957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (klass == NULL) { // Error 5050b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers DCHECK(self->IsExceptionPending()); 51cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier return nullptr; // Failure 52ad25ac568407ceb14334e8551dd1c4dd0fd6993cIan Rogers } 53ea2a11d5f20814f17985ae3d4defc8dd843f19b9Ian Rogers } 5457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(klass->IsPrimitive() && !klass->IsPrimitiveInt())) { 5557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (klass->IsPrimitiveLong() || klass->IsPrimitiveDouble()) { 5662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowRuntimeException("Bad filled array request for type %s", 5762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers PrettyDescriptor(klass).c_str()); 58573db4a2077380d81fa74ee2309162530db87a98Ian Rogers } else { 5962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location = self->GetCurrentLocationForThrow(); 6062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(throw_location.GetMethod() == referrer); 61bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom self->ThrowNewExceptionF( 62bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom throw_location, "Ljava/lang/InternalError;", 63bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom "Found type %s; filled-new-array not implemented for anything but 'int'", 64bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom PrettyDescriptor(klass).c_str()); 65573db4a2077380d81fa74ee2309162530db87a98Ian Rogers } 66cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier return nullptr; // Failure 673b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi } 683b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi if (access_check) { 693b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi mirror::Class* referrer_klass = referrer->GetDeclaringClass(); 703b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi if (UNLIKELY(!referrer_klass->CanAccess(klass))) { 713b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi ThrowIllegalAccessErrorClass(referrer_klass, klass); 72cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier return nullptr; // Failure 7357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } 74ad25ac568407ceb14334e8551dd1c4dd0fd6993cIan Rogers } 753b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi DCHECK(klass->IsArrayClass()) << PrettyClass(klass); 76cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier return klass; 773b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi} 783b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi 793b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi// Helper function to allocate array for FILLED_NEW_ARRAY. 803b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchimirror::Array* CheckAndAllocArrayFromCode(uint32_t type_idx, mirror::ArtMethod* referrer, 813b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi int32_t component_count, Thread* self, 82cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier bool access_check, 83e6da9af8dfe0a3e3fbc2be700554f6478380e7b9Mathieu Chartier gc::AllocatorType /* allocator_type */) { 84cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier mirror::Class* klass = CheckFilledNewArrayAlloc(type_idx, referrer, component_count, self, 85cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier access_check); 86cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier if (UNLIKELY(klass == nullptr)) { 87cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier return nullptr; 883b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi } 89e6da9af8dfe0a3e3fbc2be700554f6478380e7b9Mathieu Chartier // Always go slow path for now, filled new array is not common. 90e6da9af8dfe0a3e3fbc2be700554f6478380e7b9Mathieu Chartier gc::Heap* heap = Runtime::Current()->GetHeap(); 91e6da9af8dfe0a3e3fbc2be700554f6478380e7b9Mathieu Chartier // Use the current allocator type in case CheckFilledNewArrayAlloc caused us to suspend and then 92e6da9af8dfe0a3e3fbc2be700554f6478380e7b9Mathieu Chartier // the heap switched the allocator type while we were suspended. 936fac447555dc94a935b78198479cce645c837b89Ian Rogers return mirror::Array::Alloc<false>(self, klass, component_count, klass->GetComponentSize(), 946fac447555dc94a935b78198479cce645c837b89Ian Rogers heap->GetCurrentAllocator()); 953b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi} 963b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi 973b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi// Helper function to allocate array for FILLED_NEW_ARRAY. 98bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrommirror::Array* CheckAndAllocArrayFromCodeInstrumented(uint32_t type_idx, 99bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom mirror::ArtMethod* referrer, 100bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom int32_t component_count, 101bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom Thread* self, 102cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier bool access_check, 103e6da9af8dfe0a3e3fbc2be700554f6478380e7b9Mathieu Chartier gc::AllocatorType /* allocator_type */) { 104cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier mirror::Class* klass = CheckFilledNewArrayAlloc(type_idx, referrer, component_count, self, 105cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier access_check); 106cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier if (UNLIKELY(klass == nullptr)) { 107cbb2d20bea2861f244da2e2318d8c088300a3710Mathieu Chartier return nullptr; 1083b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi } 109e6da9af8dfe0a3e3fbc2be700554f6478380e7b9Mathieu Chartier gc::Heap* heap = Runtime::Current()->GetHeap(); 110e6da9af8dfe0a3e3fbc2be700554f6478380e7b9Mathieu Chartier // Use the current allocator type in case CheckFilledNewArrayAlloc caused us to suspend and then 111e6da9af8dfe0a3e3fbc2be700554f6478380e7b9Mathieu Chartier // the heap switched the allocator type while we were suspended. 1126fac447555dc94a935b78198479cce645c837b89Ian Rogers return mirror::Array::Alloc<true>(self, klass, component_count, klass->GetComponentSize(), 1136fac447555dc94a935b78198479cce645c837b89Ian Rogers heap->GetCurrentAllocator()); 114ad25ac568407ceb14334e8551dd1c4dd0fd6993cIan Rogers} 115ad25ac568407ceb14334e8551dd1c4dd0fd6993cIan Rogers 116d752132c73072084a3def9257cca4fcee76047b6jeffhaovoid ThrowStackOverflowError(Thread* self) { 1177571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom if (self->IsHandlingStackOverflow()) { 1187ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe LOG(ERROR) << "Recursive stack overflow."; 1197ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // We don't fail here because SetStackEndForStackOverflow will print better diagnostics. 1207571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom } 12162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 122d752132c73072084a3def9257cca4fcee76047b6jeffhao self->SetStackEndForStackOverflow(); // Allow space on the stack for constructor to execute. 123d752132c73072084a3def9257cca4fcee76047b6jeffhao JNIEnvExt* env = self->GetJniEnv(); 124d752132c73072084a3def9257cca4fcee76047b6jeffhao std::string msg("stack size "); 125d752132c73072084a3def9257cca4fcee76047b6jeffhao msg += PrettySize(self->GetStackSize()); 1267ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe 1277ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // Avoid running Java code for exception initialization. 1287ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // TODO: Checks to make this a bit less brittle. 1297ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe 1307ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe std::string error_msg; 1317ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe 1327ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // Allocate an uninitialized object. 1337ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe ScopedLocalRef<jobject> exc(env, 1347ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe env->AllocObject(WellKnownClasses::java_lang_StackOverflowError)); 1357ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe if (exc.get() != nullptr) { 1367ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // "Initialize". 1377ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // StackOverflowError -> VirtualMachineError -> Error -> Throwable -> Object. 1387ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // Only Throwable has "custom" fields: 1397ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // String detailMessage. 1407ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // Throwable cause (= this). 1417ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // List<Throwable> suppressedExceptions (= Collections.emptyList()). 1427ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // Object stackState; 1437ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // StackTraceElement[] stackTrace; 1447ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // Only Throwable has a non-empty constructor: 1457ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // this.stackTrace = EmptyArray.STACK_TRACE_ELEMENT; 1467ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // fillInStackTrace(); 1477ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe 1487ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // detailMessage. 1497ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // TODO: Use String::FromModifiedUTF...? 1507ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe ScopedLocalRef<jstring> s(env, env->NewStringUTF(msg.c_str())); 1517ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe if (s.get() != nullptr) { 152bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom env->SetObjectField(exc.get(), WellKnownClasses::java_lang_Throwable_detailMessage, s.get()); 1537ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe 1547ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // cause. 155bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom env->SetObjectField(exc.get(), WellKnownClasses::java_lang_Throwable_cause, exc.get()); 1567ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe 1577ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // suppressedExceptions. 1587ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe ScopedLocalRef<jobject> emptylist(env, env->GetStaticObjectField( 159bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom WellKnownClasses::java_util_Collections, 160bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom WellKnownClasses::java_util_Collections_EMPTY_LIST)); 1617ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe CHECK(emptylist.get() != nullptr); 162bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom env->SetObjectField(exc.get(), 163bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom WellKnownClasses::java_lang_Throwable_suppressedExceptions, 164bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom emptylist.get()); 1657ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe 1667ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // stackState is set as result of fillInStackTrace. fillInStackTrace calls 1677ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // nativeFillInStackTrace. 1687ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe ScopedLocalRef<jobject> stack_state_val(env, nullptr); 1697ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe { 1707ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe ScopedObjectAccessUnchecked soa(env); 1717ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe stack_state_val.reset(soa.Self()->CreateInternalStackTrace<false>(soa)); 1727ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe } 1737ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe if (stack_state_val.get() != nullptr) { 174bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom env->SetObjectField(exc.get(), 175bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom WellKnownClasses::java_lang_Throwable_stackState, 176bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom stack_state_val.get()); 1777ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe 1787ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // stackTrace. 1797ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe ScopedLocalRef<jobject> stack_trace_elem(env, env->GetStaticObjectField( 180bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom WellKnownClasses::libcore_util_EmptyArray, 181bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom WellKnownClasses::libcore_util_EmptyArray_STACK_TRACE_ELEMENT)); 182bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom env->SetObjectField(exc.get(), 183bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom WellKnownClasses::java_lang_Throwable_stackTrace, 184bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom stack_trace_elem.get()); 1857ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe 1867ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // Throw the exception. 1877ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe ThrowLocation throw_location = self->GetCurrentLocationForThrow(); 1887ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe self->SetException(throw_location, 1897ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe reinterpret_cast<mirror::Throwable*>(self->DecodeJObject(exc.get()))); 1907ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe } else { 1917ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe error_msg = "Could not create stack trace."; 1927ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe } 1937ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe } else { 1947ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe // Could not allocate a string object. 1957ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe error_msg = "Couldn't throw new StackOverflowError because JNI NewStringUTF failed."; 1967ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe } 1977ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe } else { 1987ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe error_msg = "Could not allocate StackOverflowError object."; 1997ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe } 2007ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe 2017ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe if (!error_msg.empty()) { 2027ea6f79bbddd69d5db86a8656a31aaaf64ae2582Andreas Gampe LOG(ERROR) << error_msg; 203d752132c73072084a3def9257cca4fcee76047b6jeffhao CHECK(self->IsExceptionPending()); 204d752132c73072084a3def9257cca4fcee76047b6jeffhao } 205f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison 206f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison bool explicit_overflow_check = Runtime::Current()->ExplicitStackOverflowChecks(); 20703c9785a8a6d712775cf406c4371d0227c44148fDave Allison self->ResetDefaultStackEnd(); // Return to default stack size. 20803c9785a8a6d712775cf406c4371d0227c44148fDave Allison 20903c9785a8a6d712775cf406c4371d0227c44148fDave Allison // And restore protection if implicit checks are on. 21003c9785a8a6d712775cf406c4371d0227c44148fDave Allison if (!explicit_overflow_check) { 21103c9785a8a6d712775cf406c4371d0227c44148fDave Allison self->ProtectStack(); 21203c9785a8a6d712775cf406c4371d0227c44148fDave Allison } 213d752132c73072084a3def9257cca4fcee76047b6jeffhao} 214d752132c73072084a3def9257cca4fcee76047b6jeffhao 215e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogersvoid CheckReferenceResult(mirror::Object* o, Thread* self) { 216e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers if (o == NULL) { 217e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers return; 218e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers } 219e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers mirror::ArtMethod* m = self->GetCurrentMethod(NULL); 220e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers if (o == kInvalidIndirectRefObject) { 221e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers JniAbortF(NULL, "invalid reference returned from %s", PrettyMethod(m).c_str()); 222e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers } 223e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers // Make sure that the result is an instance of the type this method was expected to return. 224e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers StackHandleScope<1> hs(self); 225e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers Handle<mirror::ArtMethod> h_m(hs.NewHandle(m)); 226e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers mirror::Class* return_type = MethodHelper(h_m).GetReturnType(); 227e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers 228e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers if (!o->InstanceOf(return_type)) { 229e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers JniAbortF(NULL, "attempt to return an instance of %s from %s", PrettyTypeOf(o).c_str(), 230e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers PrettyMethod(h_m.Get()).c_str()); 231e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers } 232e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers} 233e5877a12c30afe10a5c6a1afaff7a47ef44a2a5fIan Rogers 2342b7c4d196c8abe32f4ca633534917da9de53c359Mathieu ChartierJValue InvokeProxyInvocationHandler(ScopedObjectAccessAlreadyRunnable& soa, const char* shorty, 235af6e67a4816d2593586115b89faa659225363246Ian Rogers jobject rcvr_jobj, jobject interface_method_jobj, 236af6e67a4816d2593586115b89faa659225363246Ian Rogers std::vector<jvalue>& args) { 237af6e67a4816d2593586115b89faa659225363246Ian Rogers DCHECK(soa.Env()->IsInstanceOf(rcvr_jobj, WellKnownClasses::java_lang_reflect_Proxy)); 238af6e67a4816d2593586115b89faa659225363246Ian Rogers 239af6e67a4816d2593586115b89faa659225363246Ian Rogers // Build argument array possibly triggering GC. 240af6e67a4816d2593586115b89faa659225363246Ian Rogers soa.Self()->AssertThreadSuspensionIsAllowable(); 241af6e67a4816d2593586115b89faa659225363246Ian Rogers jobjectArray args_jobj = NULL; 242af6e67a4816d2593586115b89faa659225363246Ian Rogers const JValue zero; 243f00571c4e1ae202b3b4acb6b47cbe23a65178f7fJeff Hao int32_t target_sdk_version = Runtime::Current()->GetTargetSdkVersion(); 244f00571c4e1ae202b3b4acb6b47cbe23a65178f7fJeff Hao // Do not create empty arrays unless needed to maintain Dalvik bug compatibility. 245f00571c4e1ae202b3b4acb6b47cbe23a65178f7fJeff Hao if (args.size() > 0 || (target_sdk_version > 0 && target_sdk_version <= 21)) { 246af6e67a4816d2593586115b89faa659225363246Ian Rogers args_jobj = soa.Env()->NewObjectArray(args.size(), WellKnownClasses::java_lang_Object, NULL); 247af6e67a4816d2593586115b89faa659225363246Ian Rogers if (args_jobj == NULL) { 248af6e67a4816d2593586115b89faa659225363246Ian Rogers CHECK(soa.Self()->IsExceptionPending()); 249af6e67a4816d2593586115b89faa659225363246Ian Rogers return zero; 250af6e67a4816d2593586115b89faa659225363246Ian Rogers } 251af6e67a4816d2593586115b89faa659225363246Ian Rogers for (size_t i = 0; i < args.size(); ++i) { 252af6e67a4816d2593586115b89faa659225363246Ian Rogers if (shorty[i + 1] == 'L') { 253af6e67a4816d2593586115b89faa659225363246Ian Rogers jobject val = args.at(i).l; 254af6e67a4816d2593586115b89faa659225363246Ian Rogers soa.Env()->SetObjectArrayElement(args_jobj, i, val); 255af6e67a4816d2593586115b89faa659225363246Ian Rogers } else { 256af6e67a4816d2593586115b89faa659225363246Ian Rogers JValue jv; 257af6e67a4816d2593586115b89faa659225363246Ian Rogers jv.SetJ(args.at(i).j); 2582dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* val = BoxPrimitive(Primitive::GetType(shorty[i + 1]), jv); 259af6e67a4816d2593586115b89faa659225363246Ian Rogers if (val == NULL) { 260af6e67a4816d2593586115b89faa659225363246Ian Rogers CHECK(soa.Self()->IsExceptionPending()); 261af6e67a4816d2593586115b89faa659225363246Ian Rogers return zero; 262af6e67a4816d2593586115b89faa659225363246Ian Rogers } 263d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz soa.Decode<mirror::ObjectArray<mirror::Object>* >(args_jobj)->Set<false>(i, val); 264af6e67a4816d2593586115b89faa659225363246Ian Rogers } 265af6e67a4816d2593586115b89faa659225363246Ian Rogers } 266af6e67a4816d2593586115b89faa659225363246Ian Rogers } 267af6e67a4816d2593586115b89faa659225363246Ian Rogers 268ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom // Call Proxy.invoke(Proxy proxy, ArtMethod method, Object[] args). 269af6e67a4816d2593586115b89faa659225363246Ian Rogers jvalue invocation_args[3]; 270af6e67a4816d2593586115b89faa659225363246Ian Rogers invocation_args[0].l = rcvr_jobj; 271af6e67a4816d2593586115b89faa659225363246Ian Rogers invocation_args[1].l = interface_method_jobj; 272af6e67a4816d2593586115b89faa659225363246Ian Rogers invocation_args[2].l = args_jobj; 273af6e67a4816d2593586115b89faa659225363246Ian Rogers jobject result = 274ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom soa.Env()->CallStaticObjectMethodA(WellKnownClasses::java_lang_reflect_Proxy, 275ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom WellKnownClasses::java_lang_reflect_Proxy_invoke, 276ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom invocation_args); 277af6e67a4816d2593586115b89faa659225363246Ian Rogers 278af6e67a4816d2593586115b89faa659225363246Ian Rogers // Unbox result and handle error conditions. 27962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (LIKELY(!soa.Self()->IsExceptionPending())) { 28062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (shorty[0] == 'V' || (shorty[0] == 'L' && result == NULL)) { 281af6e67a4816d2593586115b89faa659225363246Ian Rogers // Do nothing. 282af6e67a4816d2593586115b89faa659225363246Ian Rogers return zero; 283af6e67a4816d2593586115b89faa659225363246Ian Rogers } else { 284bfd9a4378eacaf2dc2bbe05ad48c5164fc93c9feMathieu Chartier StackHandleScope<1> hs(soa.Self()); 285bfd9a4378eacaf2dc2bbe05ad48c5164fc93c9feMathieu Chartier MethodHelper mh_interface_method( 286bfd9a4378eacaf2dc2bbe05ad48c5164fc93c9feMathieu Chartier hs.NewHandle(soa.Decode<mirror::ArtMethod*>(interface_method_jobj))); 287bfd9a4378eacaf2dc2bbe05ad48c5164fc93c9feMathieu Chartier // This can cause thread suspension. 288bfd9a4378eacaf2dc2bbe05ad48c5164fc93c9feMathieu Chartier mirror::Class* result_type = mh_interface_method.GetReturnType(); 2892dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* result_ref = soa.Decode<mirror::Object*>(result); 29062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* rcvr = soa.Decode<mirror::Object*>(rcvr_jobj); 291ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* proxy_method; 292bfd9a4378eacaf2dc2bbe05ad48c5164fc93c9feMathieu Chartier if (mh_interface_method.GetMethod()->GetDeclaringClass()->IsInterface()) { 293bfd9a4378eacaf2dc2bbe05ad48c5164fc93c9feMathieu Chartier proxy_method = rcvr->GetClass()->FindVirtualMethodForInterface( 294bfd9a4378eacaf2dc2bbe05ad48c5164fc93c9feMathieu Chartier mh_interface_method.GetMethod()); 29562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 29662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Proxy dispatch to a method defined in Object. 297bfd9a4378eacaf2dc2bbe05ad48c5164fc93c9feMathieu Chartier DCHECK(mh_interface_method.GetMethod()->GetDeclaringClass()->IsObjectClass()); 298bfd9a4378eacaf2dc2bbe05ad48c5164fc93c9feMathieu Chartier proxy_method = mh_interface_method.GetMethod(); 29962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 30062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location(rcvr, proxy_method, -1); 30162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers JValue result_unboxed; 30284956ff6c0ff150d86a08157216ded79217d860aIan Rogers if (!UnboxPrimitiveForResult(throw_location, result_ref, result_type, &result_unboxed)) { 303530f71c040cb1a7b946d5566d5a746f08f2d082cIan Rogers DCHECK(soa.Self()->IsExceptionPending()); 30462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return zero; 305af6e67a4816d2593586115b89faa659225363246Ian Rogers } 306af6e67a4816d2593586115b89faa659225363246Ian Rogers return result_unboxed; 307af6e67a4816d2593586115b89faa659225363246Ian Rogers } 308af6e67a4816d2593586115b89faa659225363246Ian Rogers } else { 309af6e67a4816d2593586115b89faa659225363246Ian Rogers // In the case of checked exceptions that aren't declared, the exception must be wrapped by 310af6e67a4816d2593586115b89faa659225363246Ian Rogers // a UndeclaredThrowableException. 31162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception = soa.Self()->GetException(NULL); 312af6e67a4816d2593586115b89faa659225363246Ian Rogers if (exception->IsCheckedException()) { 3132dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* rcvr = soa.Decode<mirror::Object*>(rcvr_jobj); 31498d1cc8033251c93786e2fa8c59a2e555a9493beMingyao Yang mirror::Class* proxy_class = rcvr->GetClass(); 315ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* interface_method = 316ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom soa.Decode<mirror::ArtMethod*>(interface_method_jobj); 317ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* proxy_method = 318af6e67a4816d2593586115b89faa659225363246Ian Rogers rcvr->GetClass()->FindVirtualMethodForInterface(interface_method); 319af6e67a4816d2593586115b89faa659225363246Ian Rogers int throws_index = -1; 320af6e67a4816d2593586115b89faa659225363246Ian Rogers size_t num_virt_methods = proxy_class->NumVirtualMethods(); 321af6e67a4816d2593586115b89faa659225363246Ian Rogers for (size_t i = 0; i < num_virt_methods; i++) { 322af6e67a4816d2593586115b89faa659225363246Ian Rogers if (proxy_class->GetVirtualMethod(i) == proxy_method) { 323af6e67a4816d2593586115b89faa659225363246Ian Rogers throws_index = i; 324af6e67a4816d2593586115b89faa659225363246Ian Rogers break; 325af6e67a4816d2593586115b89faa659225363246Ian Rogers } 326af6e67a4816d2593586115b89faa659225363246Ian Rogers } 327af6e67a4816d2593586115b89faa659225363246Ian Rogers CHECK_NE(throws_index, -1); 328bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom mirror::ObjectArray<mirror::Class>* declared_exceptions = 329bfc2b98a3cf7a9d580f2477e54aabded5004fd26Brian Carlstrom proxy_class->GetThrows()->Get(throws_index); 3302dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* exception_class = exception->GetClass(); 331af6e67a4816d2593586115b89faa659225363246Ian Rogers bool declares_exception = false; 332af6e67a4816d2593586115b89faa659225363246Ian Rogers for (int i = 0; i < declared_exceptions->GetLength() && !declares_exception; i++) { 3332dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* declared_exception = declared_exceptions->Get(i); 334af6e67a4816d2593586115b89faa659225363246Ian Rogers declares_exception = declared_exception->IsAssignableFrom(exception_class); 335af6e67a4816d2593586115b89faa659225363246Ian Rogers } 336af6e67a4816d2593586115b89faa659225363246Ian Rogers if (!declares_exception) { 33762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location(rcvr, proxy_method, -1); 33862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers soa.Self()->ThrowNewWrappedException(throw_location, 33962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers "Ljava/lang/reflect/UndeclaredThrowableException;", 340af6e67a4816d2593586115b89faa659225363246Ian Rogers NULL); 341af6e67a4816d2593586115b89faa659225363246Ian Rogers } 342af6e67a4816d2593586115b89faa659225363246Ian Rogers } 343af6e67a4816d2593586115b89faa659225363246Ian Rogers return zero; 344af6e67a4816d2593586115b89faa659225363246Ian Rogers } 345af6e67a4816d2593586115b89faa659225363246Ian Rogers} 3462d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao} // namespace art 347