entrypoint_utils.cc revision 62d6c772205b8859f0ebf7ad105402ec4c3e2e01
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 172d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao#include "runtime_support.h" 182d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao 192dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "class_linker-inl.h" 204f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers#include "dex_file-inl.h" 212dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "gc/card_table-inl.h" 222dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/abstract_method-inl.h" 232dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class-inl.h" 242dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/field-inl.h" 252dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/object-inl.h" 262dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/object_array-inl.h" 272dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/proxy.h" 28af6e67a4816d2593586115b89faa659225363246Ian Rogers#include "reflection.h" 29af6e67a4816d2593586115b89faa659225363246Ian Rogers#include "scoped_thread_state_change.h" 305bb8601175bbb9cd761c715f4ba04f84d65e913bTDYa#include "ScopedLocalRef.h" 31eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes#include "well_known_classes.h" 325bb8601175bbb9cd761c715f4ba04f84d65e913bTDYa 3341005ddb5576b8630a1084fbb3979ffa602c0599jeffhaodouble art_l2d(int64_t l) { 34748474146da0c6484fa3dca0a700f612d47550c3Elliott Hughes return static_cast<double>(l); 3541005ddb5576b8630a1084fbb3979ffa602c0599jeffhao} 3641005ddb5576b8630a1084fbb3979ffa602c0599jeffhao 3741005ddb5576b8630a1084fbb3979ffa602c0599jeffhaofloat art_l2f(int64_t l) { 38748474146da0c6484fa3dca0a700f612d47550c3Elliott Hughes return static_cast<float>(l); 3941005ddb5576b8630a1084fbb3979ffa602c0599jeffhao} 402d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao 41776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers/* 42776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers * Float/double conversion requires clamping to min and max of integer form. If 43776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers * target doesn't support this normally, use these. 44776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers */ 4541005ddb5576b8630a1084fbb3979ffa602c0599jeffhaoint64_t art_d2l(double d) { 46748474146da0c6484fa3dca0a700f612d47550c3Elliott Hughes static const double kMaxLong = static_cast<double>(static_cast<int64_t>(0x7fffffffffffffffULL)); 47748474146da0c6484fa3dca0a700f612d47550c3Elliott Hughes static const double kMinLong = static_cast<double>(static_cast<int64_t>(0x8000000000000000ULL)); 48776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers if (d >= kMaxLong) { 49008fa5114f356861f74f086f0b0c50fe42ef2891Logan Chien return static_cast<int64_t>(0x7fffffffffffffffULL); 50776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } else if (d <= kMinLong) { 51008fa5114f356861f74f086f0b0c50fe42ef2891Logan Chien return static_cast<int64_t>(0x8000000000000000ULL); 52776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } else if (d != d) { // NaN case 53776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers return 0; 54776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } else { 55748474146da0c6484fa3dca0a700f612d47550c3Elliott Hughes return static_cast<int64_t>(d); 56776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } 57776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers} 58776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers 5941005ddb5576b8630a1084fbb3979ffa602c0599jeffhaoint64_t art_f2l(float f) { 60748474146da0c6484fa3dca0a700f612d47550c3Elliott Hughes static const float kMaxLong = static_cast<float>(static_cast<int64_t>(0x7fffffffffffffffULL)); 61748474146da0c6484fa3dca0a700f612d47550c3Elliott Hughes static const float kMinLong = static_cast<float>(static_cast<int64_t>(0x8000000000000000ULL)); 62776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers if (f >= kMaxLong) { 63008fa5114f356861f74f086f0b0c50fe42ef2891Logan Chien return static_cast<int64_t>(0x7fffffffffffffffULL); 64776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } else if (f <= kMinLong) { 65008fa5114f356861f74f086f0b0c50fe42ef2891Logan Chien return static_cast<int64_t>(0x8000000000000000ULL); 66776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } else if (f != f) { // NaN case 67776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers return 0; 68776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } else { 69748474146da0c6484fa3dca0a700f612d47550c3Elliott Hughes return static_cast<int64_t>(f); 70776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } 71776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers} 72776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers 7341005ddb5576b8630a1084fbb3979ffa602c0599jeffhaoint32_t art_d2i(double d) { 74008fa5114f356861f74f086f0b0c50fe42ef2891Logan Chien static const double kMaxInt = static_cast<double>(static_cast<int32_t>(0x7fffffffUL)); 75008fa5114f356861f74f086f0b0c50fe42ef2891Logan Chien static const double kMinInt = static_cast<double>(static_cast<int32_t>(0x80000000UL)); 76776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers if (d >= kMaxInt) { 77008fa5114f356861f74f086f0b0c50fe42ef2891Logan Chien return static_cast<int32_t>(0x7fffffffUL); 78776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } else if (d <= kMinInt) { 79008fa5114f356861f74f086f0b0c50fe42ef2891Logan Chien return static_cast<int32_t>(0x80000000UL); 80776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } else if (d != d) { // NaN case 81776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers return 0; 82776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } else { 83748474146da0c6484fa3dca0a700f612d47550c3Elliott Hughes return static_cast<int32_t>(d); 84776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } 85776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers} 86776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers 8741005ddb5576b8630a1084fbb3979ffa602c0599jeffhaoint32_t art_f2i(float f) { 88008fa5114f356861f74f086f0b0c50fe42ef2891Logan Chien static const float kMaxInt = static_cast<float>(static_cast<int32_t>(0x7fffffffUL)); 89008fa5114f356861f74f086f0b0c50fe42ef2891Logan Chien static const float kMinInt = static_cast<float>(static_cast<int32_t>(0x80000000UL)); 90776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers if (f >= kMaxInt) { 91008fa5114f356861f74f086f0b0c50fe42ef2891Logan Chien return static_cast<int32_t>(0x7fffffffUL); 92776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } else if (f <= kMinInt) { 93008fa5114f356861f74f086f0b0c50fe42ef2891Logan Chien return static_cast<int32_t>(0x80000000UL); 94776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } else if (f != f) { // NaN case 95776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers return 0; 96776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } else { 97748474146da0c6484fa3dca0a700f612d47550c3Elliott Hughes return static_cast<int32_t>(f); 98776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers } 99776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers} 100776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers 10141005ddb5576b8630a1084fbb3979ffa602c0599jeffhaonamespace art { 10241005ddb5576b8630a1084fbb3979ffa602c0599jeffhao 10357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers// Helper function to allocate array for FILLED_NEW_ARRAY. 10462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersmirror::Array* CheckAndAllocArrayFromCode(uint32_t type_idx, mirror::AbstractMethod* referrer, 1052dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers int32_t component_count, Thread* self, 1062dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers bool access_check) { 10757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(component_count < 0)) { 10862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNegativeArraySizeException(component_count); 10957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return NULL; // Failure 110ea2a11d5f20814f17985ae3d4defc8dd843f19b9Ian Rogers } 11162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Class* klass = referrer->GetDexCacheResolvedTypes()->Get(type_idx); 11257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(klass == NULL)) { // Not in dex cache so try to resolve 11362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers klass = Runtime::Current()->GetClassLinker()->ResolveType(type_idx, referrer); 11457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (klass == NULL) { // Error 11550b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers DCHECK(self->IsExceptionPending()); 11657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return NULL; // Failure 117ad25ac568407ceb14334e8551dd1c4dd0fd6993cIan Rogers } 118ea2a11d5f20814f17985ae3d4defc8dd843f19b9Ian Rogers } 11957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(klass->IsPrimitive() && !klass->IsPrimitiveInt())) { 12057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (klass->IsPrimitiveLong() || klass->IsPrimitiveDouble()) { 12162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowRuntimeException("Bad filled array request for type %s", 12262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers PrettyDescriptor(klass).c_str()); 123573db4a2077380d81fa74ee2309162530db87a98Ian Rogers } else { 12462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location = self->GetCurrentLocationForThrow(); 12562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(throw_location.GetMethod() == referrer); 12662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers self->ThrowNewExceptionF(throw_location, "Ljava/lang/InternalError;", 12750b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers "Found type %s; filled-new-array not implemented for anything but \'int\'", 12850b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers PrettyDescriptor(klass).c_str()); 129573db4a2077380d81fa74ee2309162530db87a98Ian Rogers } 13057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return NULL; // Failure 131ad25ac568407ceb14334e8551dd1c4dd0fd6993cIan Rogers } else { 13257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (access_check) { 13362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Class* referrer_klass = referrer->GetDeclaringClass(); 13462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(!referrer_klass->CanAccess(klass))) { 13562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowIllegalAccessErrorClass(referrer_klass, klass); 13657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return NULL; // Failure 13757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } 13857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } 13957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers DCHECK(klass->IsArrayClass()) << PrettyClass(klass); 1402dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return mirror::Array::Alloc(self, klass, component_count); 141ad25ac568407ceb14334e8551dd1c4dd0fd6993cIan Rogers } 142ad25ac568407ceb14334e8551dd1c4dd0fd6993cIan Rogers} 143ad25ac568407ceb14334e8551dd1c4dd0fd6993cIan Rogers 1442dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::Field* FindFieldFromCode(uint32_t field_idx, const mirror::AbstractMethod* referrer, 1452dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers Thread* self, FindFieldType type, size_t expected_size) { 14608f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers bool is_primitive; 14708f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers bool is_set; 14808f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers bool is_static; 14908f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers switch (type) { 15008f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers case InstanceObjectRead: is_primitive = false; is_set = false; is_static = false; break; 15108f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers case InstanceObjectWrite: is_primitive = false; is_set = true; is_static = false; break; 15208f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers case InstancePrimitiveRead: is_primitive = true; is_set = false; is_static = false; break; 15308f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers case InstancePrimitiveWrite: is_primitive = true; is_set = true; is_static = false; break; 15408f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers case StaticObjectRead: is_primitive = false; is_set = false; is_static = true; break; 15508f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers case StaticObjectWrite: is_primitive = false; is_set = true; is_static = true; break; 15608f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers case StaticPrimitiveRead: is_primitive = true; is_set = false; is_static = true; break; 15708f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers case StaticPrimitiveWrite: // Keep GCC happy by having a default handler, fall-through. 15808f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers default: is_primitive = true; is_set = true; is_static = true; break; 15908f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers } 16057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1612dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Field* resolved_field = class_linker->ResolveField(field_idx, referrer, is_static); 16257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(resolved_field == NULL)) { 16308f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers DCHECK(self->IsExceptionPending()); // Throw exception and unwind. 16408f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers return NULL; // Failure. 16557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } else { 16608f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers if (resolved_field->IsStatic() != is_static) { 16787e552db94588455c081efd87dbde0cd96d02942Ian Rogers ThrowIncompatibleClassChangeErrorField(resolved_field, is_static, referrer); 16808f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers return NULL; 16908f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers } 1702dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* fields_class = resolved_field->GetDeclaringClass(); 1712dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* referring_class = referrer->GetDeclaringClass(); 172e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers if (UNLIKELY(!referring_class->CanAccess(fields_class) || 173e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers !referring_class->CanAccessMember(fields_class, 174e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers resolved_field->GetAccessFlags()))) { 175e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers // The referring class can't access the resolved field, this may occur as a result of a 176e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers // protected field being made public by a sub-class. Resort to the dex file to determine 177e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers // the correct class for the access check. 1784445a7e3398a6143939168097a3aa275b734504dIan Rogers const DexFile& dex_file = *referring_class->GetDexCache()->GetDexFile(); 179e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers fields_class = class_linker->ResolveType(dex_file, 180e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers dex_file.GetFieldId(field_idx).class_idx_, 181e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers referring_class); 182e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers if (UNLIKELY(!referring_class->CanAccess(fields_class))) { 18387e552db94588455c081efd87dbde0cd96d02942Ian Rogers ThrowIllegalAccessErrorClass(referring_class, fields_class); 184e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers return NULL; // failure 185e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers } else if (UNLIKELY(!referring_class->CanAccessMember(fields_class, 186e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers resolved_field->GetAccessFlags()))) { 18787e552db94588455c081efd87dbde0cd96d02942Ian Rogers ThrowIllegalAccessErrorField(referring_class, resolved_field); 188e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers return NULL; // failure 189e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers } 190e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers } 191e2645d3e2db211bfd75775a2185c135ff387161aIan Rogers if (UNLIKELY(is_set && resolved_field->IsFinal() && (fields_class != referring_class))) { 19287e552db94588455c081efd87dbde0cd96d02942Ian Rogers ThrowIllegalAccessErrorFinalField(referrer, resolved_field); 19357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return NULL; // failure 19457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } else { 19557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers FieldHelper fh(resolved_field); 19657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(fh.IsPrimitiveType() != is_primitive || 19757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers fh.FieldSize() != expected_size)) { 19862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location = self->GetCurrentLocationForThrow(); 19962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(throw_location.GetMethod() == referrer); 20062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers self->ThrowNewExceptionF(throw_location, "Ljava/lang/NoSuchFieldError;", 20157b86d47b66322693a070185fadfb43cb9c12eabIan Rogers "Attempted read of %zd-bit %s on field '%s'", 20257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers expected_size * (32 / sizeof(int32_t)), 20357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers is_primitive ? "primitive" : "non-primitive", 20457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers PrettyField(resolved_field, true).c_str()); 20557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return NULL; // failure 20657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } else if (!is_static) { 20757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // instance fields must be being accessed on an initialized class 20857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return resolved_field; 20960db5ab3a2e480db9236325a14cb5a867881d8bbIan Rogers } else { 21057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // If the class is already initializing, we must be inside <clinit>, or 21157b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // we'd still be waiting for the lock. 21257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (fields_class->IsInitializing()) { 21357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return resolved_field; 2140045a290e6b79a274250e3112880c04bde437d4aIan Rogers } else if (Runtime::Current()->GetClassLinker()->EnsureInitialized(fields_class, true, true)) { 21557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return resolved_field; 21660db5ab3a2e480db9236325a14cb5a867881d8bbIan Rogers } else { 21757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers DCHECK(self->IsExceptionPending()); // Throw exception and unwind 21857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return NULL; // failure 21960db5ab3a2e480db9236325a14cb5a867881d8bbIan Rogers } 22060db5ab3a2e480db9236325a14cb5a867881d8bbIan Rogers } 22160db5ab3a2e480db9236325a14cb5a867881d8bbIan Rogers } 22260db5ab3a2e480db9236325a14cb5a867881d8bbIan Rogers } 223ddbd01ac1660d57416879d5a576482f1048dde64Shih-wei Liao} 224ddbd01ac1660d57416879d5a576482f1048dde64Shih-wei Liao 22557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers// Slow path method resolution 2262dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::AbstractMethod* FindMethodFromCode(uint32_t method_idx, mirror::Object* this_object, 2272dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* referrer, 2282dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers Thread* self, bool access_check, InvokeType type) { 22957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 23057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers bool is_direct = type == kStatic || type == kDirect; 2312dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* resolved_method = class_linker->ResolveMethod(method_idx, referrer, type); 23257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(resolved_method == NULL)) { 23308f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers DCHECK(self->IsExceptionPending()); // Throw exception and unwind. 23408f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers return NULL; // Failure. 235262e251e56d66bd309c6165964ac0a0be24447fejeffhao } else if (UNLIKELY(this_object == NULL && type != kStatic)) { 236262e251e56d66bd309c6165964ac0a0be24447fejeffhao // Maintain interpreter-like semantics where NullPointerException is thrown 237262e251e56d66bd309c6165964ac0a0be24447fejeffhao // after potential NoSuchMethodError from class linker. 23862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location = self->GetCurrentLocationForThrow(); 23962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(referrer == throw_location.GetMethod()); 24062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNullPointerExceptionForMethodAccess(throw_location, method_idx, type); 241262e251e56d66bd309c6165964ac0a0be24447fejeffhao return NULL; // Failure. 242466bb25416b88fabd5d4387b7c7e5cc1ece78b8cIan Rogers } else { 24357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (!access_check) { 24457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (is_direct) { 24557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return resolved_method; 24657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } else if (type == kInterface) { 2472dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* interface_method = 24857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers this_object->GetClass()->FindVirtualMethodForInterface(resolved_method); 24957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(interface_method == NULL)) { 25087e552db94588455c081efd87dbde0cd96d02942Ian Rogers ThrowIncompatibleClassChangeErrorClassForInterfaceDispatch(resolved_method, this_object, 25187e552db94588455c081efd87dbde0cd96d02942Ian Rogers referrer); 25208f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers return NULL; // Failure. 25357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } else { 25457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return interface_method; 25557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } 25657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } else { 2572dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::AbstractMethod>* vtable; 25857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers uint16_t vtable_index = resolved_method->GetMethodIndex(); 25957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (type == kSuper) { 26057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers vtable = referrer->GetDeclaringClass()->GetSuperClass()->GetVTable(); 26157b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } else { 26257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers vtable = this_object->GetClass()->GetVTable(); 26357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } 26457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // TODO: eliminate bounds check? 26557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return vtable->Get(vtable_index); 266051c9fc1de07bbc265af38cf60f061394163c68fElliott Hughes } 267466bb25416b88fabd5d4387b7c7e5cc1ece78b8cIan Rogers } else { 26808f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers // Incompatible class change should have been handled in resolve method. 26908f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers if (UNLIKELY(resolved_method->CheckIncompatibleClassChange(type))) { 2702fc1427ee9c534ed44d72184ad6d74ea65f3d5b3Ian Rogers ThrowIncompatibleClassChangeError(type, resolved_method->GetInvokeType(), resolved_method, 2712fc1427ee9c534ed44d72184ad6d74ea65f3d5b3Ian Rogers referrer); 27208f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers return NULL; // Failure. 27308f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers } 2742dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* methods_class = resolved_method->GetDeclaringClass(); 2752dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* referring_class = referrer->GetDeclaringClass(); 27657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(!referring_class->CanAccess(methods_class) || 27757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers !referring_class->CanAccessMember(methods_class, 27857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers resolved_method->GetAccessFlags()))) { 27957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // The referring class can't access the resolved method, this may occur as a result of a 28057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // protected method being made public by implementing an interface that re-declares the 28157b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // method public. Resort to the dex file to determine the correct class for the access check 2824445a7e3398a6143939168097a3aa275b734504dIan Rogers const DexFile& dex_file = *referring_class->GetDexCache()->GetDexFile(); 28357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers methods_class = class_linker->ResolveType(dex_file, 28457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers dex_file.GetMethodId(method_idx).class_idx_, 28557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers referring_class); 28657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(!referring_class->CanAccess(methods_class))) { 28787e552db94588455c081efd87dbde0cd96d02942Ian Rogers ThrowIllegalAccessErrorClassForMethodDispatch(referring_class, methods_class, 28887e552db94588455c081efd87dbde0cd96d02942Ian Rogers referrer, resolved_method, type); 28908f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers return NULL; // Failure. 29057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } else if (UNLIKELY(!referring_class->CanAccessMember(methods_class, 29157b86d47b66322693a070185fadfb43cb9c12eabIan Rogers resolved_method->GetAccessFlags()))) { 29287e552db94588455c081efd87dbde0cd96d02942Ian Rogers ThrowIllegalAccessErrorMethod(referring_class, resolved_method); 29308f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers return NULL; // Failure. 294c2b4447ae9c0c1e77595620acac6508999df6698Ian Rogers } 295c2b4447ae9c0c1e77595620acac6508999df6698Ian Rogers } 29657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (is_direct) { 29757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return resolved_method; 29857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } else if (type == kInterface) { 2992dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* interface_method = 30057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers this_object->GetClass()->FindVirtualMethodForInterface(resolved_method); 30157b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(interface_method == NULL)) { 30287e552db94588455c081efd87dbde0cd96d02942Ian Rogers ThrowIncompatibleClassChangeErrorClassForInterfaceDispatch(resolved_method, this_object, 30387e552db94588455c081efd87dbde0cd96d02942Ian Rogers referrer); 30408f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers return NULL; // Failure. 30557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } else { 30657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return interface_method; 30757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } 308466bb25416b88fabd5d4387b7c7e5cc1ece78b8cIan Rogers } else { 3092dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::AbstractMethod>* vtable; 31057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers uint16_t vtable_index = resolved_method->GetMethodIndex(); 31157b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (type == kSuper) { 3122dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* super_class = referring_class->GetSuperClass(); 31357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (LIKELY(super_class != NULL)) { 31457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers vtable = referring_class->GetSuperClass()->GetVTable(); 31557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } else { 31657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers vtable = NULL; 31757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } 31857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } else { 31957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers vtable = this_object->GetClass()->GetVTable(); 32057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } 32157b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (LIKELY(vtable != NULL && 32257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers vtable_index < static_cast<uint32_t>(vtable->GetLength()))) { 32357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return vtable->GetWithoutChecks(vtable_index); 32457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } else { 32508f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers // Behavior to agree with that of the verifier. 32608f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers MethodHelper mh(resolved_method); 32708f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers ThrowNoSuchMethodError(type, resolved_method->GetDeclaringClass(), mh.GetName(), 32862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mh.GetSignature()); 32908f753d5859936f8d3524e9e4faa6cee353873eaIan Rogers return NULL; // Failure. 33057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } 331466bb25416b88fabd5d4387b7c7e5cc1ece78b8cIan Rogers } 332466bb25416b88fabd5d4387b7c7e5cc1ece78b8cIan Rogers } 333dfcdf1a0d2d8d75b4c701317e4a092498a8d1e9eIan Rogers } 334dfcdf1a0d2d8d75b4c701317e4a092498a8d1e9eIan Rogers} 335dfcdf1a0d2d8d75b4c701317e4a092498a8d1e9eIan Rogers 3362dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::Class* ResolveVerifyAndClinit(uint32_t type_idx, const mirror::AbstractMethod* referrer, 3372dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers Thread* self, bool can_run_clinit, bool verify_access) { 33857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 3392dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* klass = class_linker->ResolveType(type_idx, referrer); 34057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (UNLIKELY(klass == NULL)) { 34157b86d47b66322693a070185fadfb43cb9c12eabIan Rogers CHECK(self->IsExceptionPending()); 34257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return NULL; // Failure - Indicate to caller to deliver exception 34357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } 34457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // Perform access check if necessary. 3452dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* referring_class = referrer->GetDeclaringClass(); 34657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (verify_access && UNLIKELY(!referring_class->CanAccess(klass))) { 34787e552db94588455c081efd87dbde0cd96d02942Ian Rogers ThrowIllegalAccessErrorClass(referring_class, klass); 34857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return NULL; // Failure - Indicate to caller to deliver exception 34957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } 35057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // If we're just implementing const-class, we shouldn't call <clinit>. 35157b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (!can_run_clinit) { 35257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return klass; 35357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } 35457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // If we are the <clinit> of this class, just return our storage. 35557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // 35657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // Do not set the DexCache InitializedStaticStorage, since that implies <clinit> has finished 35757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // running. 35857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (klass == referring_class && MethodHelper(referrer).IsClassInitializer()) { 35957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return klass; 36057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers } 3610045a290e6b79a274250e3112880c04bde437d4aIan Rogers if (!class_linker->EnsureInitialized(klass, true, true)) { 36257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers CHECK(self->IsExceptionPending()); 36357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return NULL; // Failure - Indicate to caller to deliver exception 364a433b2e8edf91c8124abd8eb5b3bd558a40fc987Ian Rogers } 36557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers referrer->GetDexCacheInitializedStaticStorage()->Set(type_idx, klass); 36657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return klass; 3672d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao} 3682d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao 369d752132c73072084a3def9257cca4fcee76047b6jeffhaovoid ThrowStackOverflowError(Thread* self) { 370d752132c73072084a3def9257cca4fcee76047b6jeffhao CHECK(!self->IsHandlingStackOverflow()) << "Recursive stack overflow."; 37162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 37262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (Runtime::Current()->GetInstrumentation()->AreExitStubsInstalled()) { 37362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Remove extra entry pushed onto second stack during method tracing. 37462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Runtime::Current()->GetInstrumentation()->PopMethodForUnwind(self, false); 375d752132c73072084a3def9257cca4fcee76047b6jeffhao } 37662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 377d752132c73072084a3def9257cca4fcee76047b6jeffhao self->SetStackEndForStackOverflow(); // Allow space on the stack for constructor to execute. 378d752132c73072084a3def9257cca4fcee76047b6jeffhao JNIEnvExt* env = self->GetJniEnv(); 379d752132c73072084a3def9257cca4fcee76047b6jeffhao std::string msg("stack size "); 380d752132c73072084a3def9257cca4fcee76047b6jeffhao msg += PrettySize(self->GetStackSize()); 381d752132c73072084a3def9257cca4fcee76047b6jeffhao // Use low-level JNI routine and pre-baked error class to avoid class linking operations that 382d752132c73072084a3def9257cca4fcee76047b6jeffhao // would consume more stack. 383d752132c73072084a3def9257cca4fcee76047b6jeffhao int rc = ::art::ThrowNewException(env, WellKnownClasses::java_lang_StackOverflowError, 384d752132c73072084a3def9257cca4fcee76047b6jeffhao msg.c_str(), NULL); 385d752132c73072084a3def9257cca4fcee76047b6jeffhao if (rc != JNI_OK) { 386d752132c73072084a3def9257cca4fcee76047b6jeffhao // TODO: ThrowNewException failed presumably because of an OOME, we continue to throw the OOME 387d752132c73072084a3def9257cca4fcee76047b6jeffhao // or die in the CHECK below. We may want to throw a pre-baked StackOverflowError 388d752132c73072084a3def9257cca4fcee76047b6jeffhao // instead. 389d752132c73072084a3def9257cca4fcee76047b6jeffhao LOG(ERROR) << "Couldn't throw new StackOverflowError because JNI ThrowNew failed."; 390d752132c73072084a3def9257cca4fcee76047b6jeffhao CHECK(self->IsExceptionPending()); 391d752132c73072084a3def9257cca4fcee76047b6jeffhao } 392d752132c73072084a3def9257cca4fcee76047b6jeffhao self->ResetDefaultStackEnd(); // Return to default stack size. 393d752132c73072084a3def9257cca4fcee76047b6jeffhao} 394d752132c73072084a3def9257cca4fcee76047b6jeffhao 395af6e67a4816d2593586115b89faa659225363246Ian RogersJValue InvokeProxyInvocationHandler(ScopedObjectAccessUnchecked& soa, const char* shorty, 396af6e67a4816d2593586115b89faa659225363246Ian Rogers jobject rcvr_jobj, jobject interface_method_jobj, 397af6e67a4816d2593586115b89faa659225363246Ian Rogers std::vector<jvalue>& args) { 398af6e67a4816d2593586115b89faa659225363246Ian Rogers DCHECK(soa.Env()->IsInstanceOf(rcvr_jobj, WellKnownClasses::java_lang_reflect_Proxy)); 399af6e67a4816d2593586115b89faa659225363246Ian Rogers 400af6e67a4816d2593586115b89faa659225363246Ian Rogers // Build argument array possibly triggering GC. 401af6e67a4816d2593586115b89faa659225363246Ian Rogers soa.Self()->AssertThreadSuspensionIsAllowable(); 402af6e67a4816d2593586115b89faa659225363246Ian Rogers jobjectArray args_jobj = NULL; 403af6e67a4816d2593586115b89faa659225363246Ian Rogers const JValue zero; 404af6e67a4816d2593586115b89faa659225363246Ian Rogers if (args.size() > 0) { 405af6e67a4816d2593586115b89faa659225363246Ian Rogers args_jobj = soa.Env()->NewObjectArray(args.size(), WellKnownClasses::java_lang_Object, NULL); 406af6e67a4816d2593586115b89faa659225363246Ian Rogers if (args_jobj == NULL) { 407af6e67a4816d2593586115b89faa659225363246Ian Rogers CHECK(soa.Self()->IsExceptionPending()); 408af6e67a4816d2593586115b89faa659225363246Ian Rogers return zero; 409af6e67a4816d2593586115b89faa659225363246Ian Rogers } 410af6e67a4816d2593586115b89faa659225363246Ian Rogers for (size_t i = 0; i < args.size(); ++i) { 411af6e67a4816d2593586115b89faa659225363246Ian Rogers if (shorty[i + 1] == 'L') { 412af6e67a4816d2593586115b89faa659225363246Ian Rogers jobject val = args.at(i).l; 413af6e67a4816d2593586115b89faa659225363246Ian Rogers soa.Env()->SetObjectArrayElement(args_jobj, i, val); 414af6e67a4816d2593586115b89faa659225363246Ian Rogers } else { 415af6e67a4816d2593586115b89faa659225363246Ian Rogers JValue jv; 416af6e67a4816d2593586115b89faa659225363246Ian Rogers jv.SetJ(args.at(i).j); 4172dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* val = BoxPrimitive(Primitive::GetType(shorty[i + 1]), jv); 418af6e67a4816d2593586115b89faa659225363246Ian Rogers if (val == NULL) { 419af6e67a4816d2593586115b89faa659225363246Ian Rogers CHECK(soa.Self()->IsExceptionPending()); 420af6e67a4816d2593586115b89faa659225363246Ian Rogers return zero; 421af6e67a4816d2593586115b89faa659225363246Ian Rogers } 4222dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.Decode<mirror::ObjectArray<mirror::Object>* >(args_jobj)->Set(i, val); 423af6e67a4816d2593586115b89faa659225363246Ian Rogers } 424af6e67a4816d2593586115b89faa659225363246Ian Rogers } 425af6e67a4816d2593586115b89faa659225363246Ian Rogers } 426af6e67a4816d2593586115b89faa659225363246Ian Rogers 427af6e67a4816d2593586115b89faa659225363246Ian Rogers // Call InvocationHandler.invoke(Object proxy, Method method, Object[] args). 428af6e67a4816d2593586115b89faa659225363246Ian Rogers jobject inv_hand = soa.Env()->GetObjectField(rcvr_jobj, 429af6e67a4816d2593586115b89faa659225363246Ian Rogers WellKnownClasses::java_lang_reflect_Proxy_h); 430af6e67a4816d2593586115b89faa659225363246Ian Rogers jvalue invocation_args[3]; 431af6e67a4816d2593586115b89faa659225363246Ian Rogers invocation_args[0].l = rcvr_jobj; 432af6e67a4816d2593586115b89faa659225363246Ian Rogers invocation_args[1].l = interface_method_jobj; 433af6e67a4816d2593586115b89faa659225363246Ian Rogers invocation_args[2].l = args_jobj; 434af6e67a4816d2593586115b89faa659225363246Ian Rogers jobject result = 435af6e67a4816d2593586115b89faa659225363246Ian Rogers soa.Env()->CallObjectMethodA(inv_hand, 436af6e67a4816d2593586115b89faa659225363246Ian Rogers WellKnownClasses::java_lang_reflect_InvocationHandler_invoke, 437af6e67a4816d2593586115b89faa659225363246Ian Rogers invocation_args); 438af6e67a4816d2593586115b89faa659225363246Ian Rogers 439af6e67a4816d2593586115b89faa659225363246Ian Rogers // Unbox result and handle error conditions. 44062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (LIKELY(!soa.Self()->IsExceptionPending())) { 44162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (shorty[0] == 'V' || (shorty[0] == 'L' && result == NULL)) { 442af6e67a4816d2593586115b89faa659225363246Ian Rogers // Do nothing. 443af6e67a4816d2593586115b89faa659225363246Ian Rogers return zero; 444af6e67a4816d2593586115b89faa659225363246Ian Rogers } else { 4452dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* result_ref = soa.Decode<mirror::Object*>(result); 44662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* rcvr = soa.Decode<mirror::Object*>(rcvr_jobj); 44762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* interface_method = 44862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers soa.Decode<mirror::AbstractMethod*>(interface_method_jobj); 44962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Class* result_type = MethodHelper(interface_method).GetReturnType(); 45062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* proxy_method; 45162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (interface_method->GetDeclaringClass()->IsInterface()) { 45262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers proxy_method = rcvr->GetClass()->FindVirtualMethodForInterface(interface_method); 45362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 45462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Proxy dispatch to a method defined in Object. 45562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(interface_method->GetDeclaringClass()->IsObjectClass()); 45662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers proxy_method = interface_method; 45762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 45862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location(rcvr, proxy_method, -1); 45962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers JValue result_unboxed; 46062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (!UnboxPrimitiveForResult(throw_location, result_ref, result_type, result_unboxed)) { 461530f71c040cb1a7b946d5566d5a746f08f2d082cIan Rogers DCHECK(soa.Self()->IsExceptionPending()); 46262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return zero; 463af6e67a4816d2593586115b89faa659225363246Ian Rogers } 464af6e67a4816d2593586115b89faa659225363246Ian Rogers return result_unboxed; 465af6e67a4816d2593586115b89faa659225363246Ian Rogers } 466af6e67a4816d2593586115b89faa659225363246Ian Rogers } else { 467af6e67a4816d2593586115b89faa659225363246Ian Rogers // In the case of checked exceptions that aren't declared, the exception must be wrapped by 468af6e67a4816d2593586115b89faa659225363246Ian Rogers // a UndeclaredThrowableException. 46962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception = soa.Self()->GetException(NULL); 470af6e67a4816d2593586115b89faa659225363246Ian Rogers if (exception->IsCheckedException()) { 4712dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* rcvr = soa.Decode<mirror::Object*>(rcvr_jobj); 4722dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::SynthesizedProxyClass* proxy_class = 4732dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers down_cast<mirror::SynthesizedProxyClass*>(rcvr->GetClass()); 4742dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* interface_method = 4752dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.Decode<mirror::AbstractMethod*>(interface_method_jobj); 4762dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* proxy_method = 477af6e67a4816d2593586115b89faa659225363246Ian Rogers rcvr->GetClass()->FindVirtualMethodForInterface(interface_method); 478af6e67a4816d2593586115b89faa659225363246Ian Rogers int throws_index = -1; 479af6e67a4816d2593586115b89faa659225363246Ian Rogers size_t num_virt_methods = proxy_class->NumVirtualMethods(); 480af6e67a4816d2593586115b89faa659225363246Ian Rogers for (size_t i = 0; i < num_virt_methods; i++) { 481af6e67a4816d2593586115b89faa659225363246Ian Rogers if (proxy_class->GetVirtualMethod(i) == proxy_method) { 482af6e67a4816d2593586115b89faa659225363246Ian Rogers throws_index = i; 483af6e67a4816d2593586115b89faa659225363246Ian Rogers break; 484af6e67a4816d2593586115b89faa659225363246Ian Rogers } 485af6e67a4816d2593586115b89faa659225363246Ian Rogers } 486af6e67a4816d2593586115b89faa659225363246Ian Rogers CHECK_NE(throws_index, -1); 4872dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Class>* declared_exceptions = proxy_class->GetThrows()->Get(throws_index); 4882dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* exception_class = exception->GetClass(); 489af6e67a4816d2593586115b89faa659225363246Ian Rogers bool declares_exception = false; 490af6e67a4816d2593586115b89faa659225363246Ian Rogers for (int i = 0; i < declared_exceptions->GetLength() && !declares_exception; i++) { 4912dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* declared_exception = declared_exceptions->Get(i); 492af6e67a4816d2593586115b89faa659225363246Ian Rogers declares_exception = declared_exception->IsAssignableFrom(exception_class); 493af6e67a4816d2593586115b89faa659225363246Ian Rogers } 494af6e67a4816d2593586115b89faa659225363246Ian Rogers if (!declares_exception) { 49562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location(rcvr, proxy_method, -1); 49662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers soa.Self()->ThrowNewWrappedException(throw_location, 49762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers "Ljava/lang/reflect/UndeclaredThrowableException;", 498af6e67a4816d2593586115b89faa659225363246Ian Rogers NULL); 499af6e67a4816d2593586115b89faa659225363246Ian Rogers } 500af6e67a4816d2593586115b89faa659225363246Ian Rogers } 501af6e67a4816d2593586115b89faa659225363246Ian Rogers return zero; 502af6e67a4816d2593586115b89faa659225363246Ian Rogers } 503af6e67a4816d2593586115b89faa659225363246Ian Rogers} 504af6e67a4816d2593586115b89faa659225363246Ian Rogers 5052d831014d88e38c0c499ce8597dcdb17b9d4c4b9Shih-wei Liao} // namespace art 506