Shih-wei Liao | 2d83101 | 2011-09-28 22:06:53 -0700 | [diff] [blame] | 1 | /* |
Elliott Hughes | 0f3c553 | 2012-03-30 14:51:51 -0700 | [diff] [blame] | 2 | * Copyright (C) 2012 The Android Open Source Project |
Shih-wei Liao | 2d83101 | 2011-09-28 22:06:53 -0700 | [diff] [blame] | 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 17 | #include "entrypoints/entrypoint_utils.h" |
Shih-wei Liao | 2d83101 | 2011-09-28 22:06:53 -0700 | [diff] [blame] | 18 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 19 | #include "class_linker-inl.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 20 | #include "dex_file-inl.h" |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 21 | #include "gc/accounting/card_table-inl.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 22 | #include "mirror/art_field-inl.h" |
| 23 | #include "mirror/art_method-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 24 | #include "mirror/class-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 25 | #include "mirror/object-inl.h" |
Dragos Sbirlea | bd136a2 | 2013-08-13 18:07:04 -0700 | [diff] [blame] | 26 | #include "object_utils.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 27 | #include "mirror/object_array-inl.h" |
| 28 | #include "mirror/proxy.h" |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 29 | #include "reflection.h" |
| 30 | #include "scoped_thread_state_change.h" |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 31 | #include "ScopedLocalRef.h" |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 32 | #include "well_known_classes.h" |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 33 | |
jeffhao | 41005dd | 2012-05-09 17:58:52 -0700 | [diff] [blame] | 34 | namespace art { |
| 35 | |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame^] | 36 | static inline bool CheckFilledNewArrayAlloc(uint32_t type_idx, mirror::ArtMethod* referrer, |
| 37 | int32_t component_count, Thread* self, |
| 38 | bool access_check, mirror::Class** klass_ptr) |
| 39 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 40 | if (UNLIKELY(component_count < 0)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 41 | ThrowNegativeArraySizeException(component_count); |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame^] | 42 | return false; // Failure |
Elliott Hughes | 6c8867d | 2011-10-03 16:34:05 -0700 | [diff] [blame] | 43 | } |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame^] | 44 | mirror::Class* klass = referrer->GetDexCacheResolvedTypes()->GetWithoutChecks(type_idx); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 45 | if (UNLIKELY(klass == NULL)) { // Not in dex cache so try to resolve |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 46 | klass = Runtime::Current()->GetClassLinker()->ResolveType(type_idx, referrer); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 47 | if (klass == NULL) { // Error |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 48 | DCHECK(self->IsExceptionPending()); |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame^] | 49 | return false; // Failure |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 50 | } |
Ian Rogers | ea2a11d | 2011-10-11 16:48:51 -0700 | [diff] [blame] | 51 | } |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 52 | if (UNLIKELY(klass->IsPrimitive() && !klass->IsPrimitiveInt())) { |
| 53 | if (klass->IsPrimitiveLong() || klass->IsPrimitiveDouble()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 54 | ThrowRuntimeException("Bad filled array request for type %s", |
| 55 | PrettyDescriptor(klass).c_str()); |
Ian Rogers | 573db4a | 2011-12-13 15:30:50 -0800 | [diff] [blame] | 56 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 57 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 58 | DCHECK(throw_location.GetMethod() == referrer); |
| 59 | self->ThrowNewExceptionF(throw_location, "Ljava/lang/InternalError;", |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 60 | "Found type %s; filled-new-array not implemented for anything but \'int\'", |
| 61 | PrettyDescriptor(klass).c_str()); |
Ian Rogers | 573db4a | 2011-12-13 15:30:50 -0800 | [diff] [blame] | 62 | } |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame^] | 63 | return false; // Failure |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 64 | } |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame^] | 65 | if (access_check) { |
| 66 | mirror::Class* referrer_klass = referrer->GetDeclaringClass(); |
| 67 | if (UNLIKELY(!referrer_klass->CanAccess(klass))) { |
| 68 | ThrowIllegalAccessErrorClass(referrer_klass, klass); |
| 69 | return false; // Failure |
| 70 | } |
| 71 | } |
| 72 | DCHECK(klass->IsArrayClass()) << PrettyClass(klass); |
| 73 | *klass_ptr = klass; |
| 74 | return true; |
| 75 | } |
| 76 | |
| 77 | // Helper function to allocate array for FILLED_NEW_ARRAY. |
| 78 | mirror::Array* CheckAndAllocArrayFromCode(uint32_t type_idx, mirror::ArtMethod* referrer, |
| 79 | int32_t component_count, Thread* self, |
| 80 | bool access_check) { |
| 81 | mirror::Class* klass; |
| 82 | if (UNLIKELY(!CheckFilledNewArrayAlloc(type_idx, referrer, component_count, self, access_check, &klass))) { |
| 83 | return NULL; |
| 84 | } |
| 85 | return mirror::Array::AllocUninstrumented(self, klass, component_count); |
| 86 | } |
| 87 | |
| 88 | // Helper function to allocate array for FILLED_NEW_ARRAY. |
| 89 | mirror::Array* CheckAndAllocArrayFromCodeInstrumented(uint32_t type_idx, mirror::ArtMethod* referrer, |
| 90 | int32_t component_count, Thread* self, |
| 91 | bool access_check) { |
| 92 | mirror::Class* klass; |
| 93 | if (UNLIKELY(!CheckFilledNewArrayAlloc(type_idx, referrer, component_count, self, access_check, &klass))) { |
| 94 | return NULL; |
| 95 | } |
| 96 | return mirror::Array::AllocInstrumented(self, klass, component_count); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 97 | } |
| 98 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 99 | mirror::ArtField* FindFieldFromCode(uint32_t field_idx, const mirror::ArtMethod* referrer, |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 100 | Thread* self, FindFieldType type, size_t expected_size, |
| 101 | bool access_check) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 102 | bool is_primitive; |
| 103 | bool is_set; |
| 104 | bool is_static; |
| 105 | switch (type) { |
| 106 | case InstanceObjectRead: is_primitive = false; is_set = false; is_static = false; break; |
| 107 | case InstanceObjectWrite: is_primitive = false; is_set = true; is_static = false; break; |
| 108 | case InstancePrimitiveRead: is_primitive = true; is_set = false; is_static = false; break; |
| 109 | case InstancePrimitiveWrite: is_primitive = true; is_set = true; is_static = false; break; |
| 110 | case StaticObjectRead: is_primitive = false; is_set = false; is_static = true; break; |
| 111 | case StaticObjectWrite: is_primitive = false; is_set = true; is_static = true; break; |
| 112 | case StaticPrimitiveRead: is_primitive = true; is_set = false; is_static = true; break; |
| 113 | case StaticPrimitiveWrite: // Keep GCC happy by having a default handler, fall-through. |
| 114 | default: is_primitive = true; is_set = true; is_static = true; break; |
| 115 | } |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 116 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 117 | mirror::ArtField* resolved_field = class_linker->ResolveField(field_idx, referrer, is_static); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 118 | if (UNLIKELY(resolved_field == NULL)) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 119 | DCHECK(self->IsExceptionPending()); // Throw exception and unwind. |
| 120 | return NULL; // Failure. |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 121 | } |
| 122 | mirror::Class* fields_class = resolved_field->GetDeclaringClass(); |
| 123 | if (access_check) { |
Sebastien Hertz | 807a256 | 2013-04-15 09:33:39 +0200 | [diff] [blame] | 124 | if (UNLIKELY(resolved_field->IsStatic() != is_static)) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 125 | ThrowIncompatibleClassChangeErrorField(resolved_field, is_static, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 126 | return NULL; |
| 127 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 128 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
Ian Rogers | e2645d3 | 2012-04-11 14:42:42 -0700 | [diff] [blame] | 129 | if (UNLIKELY(!referring_class->CanAccess(fields_class) || |
| 130 | !referring_class->CanAccessMember(fields_class, |
| 131 | resolved_field->GetAccessFlags()))) { |
| 132 | // The referring class can't access the resolved field, this may occur as a result of a |
| 133 | // protected field being made public by a sub-class. Resort to the dex file to determine |
| 134 | // the correct class for the access check. |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 135 | const DexFile& dex_file = *referring_class->GetDexCache()->GetDexFile(); |
Ian Rogers | e2645d3 | 2012-04-11 14:42:42 -0700 | [diff] [blame] | 136 | fields_class = class_linker->ResolveType(dex_file, |
| 137 | dex_file.GetFieldId(field_idx).class_idx_, |
| 138 | referring_class); |
| 139 | if (UNLIKELY(!referring_class->CanAccess(fields_class))) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 140 | ThrowIllegalAccessErrorClass(referring_class, fields_class); |
Ian Rogers | e2645d3 | 2012-04-11 14:42:42 -0700 | [diff] [blame] | 141 | return NULL; // failure |
| 142 | } else if (UNLIKELY(!referring_class->CanAccessMember(fields_class, |
| 143 | resolved_field->GetAccessFlags()))) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 144 | ThrowIllegalAccessErrorField(referring_class, resolved_field); |
Ian Rogers | e2645d3 | 2012-04-11 14:42:42 -0700 | [diff] [blame] | 145 | return NULL; // failure |
| 146 | } |
| 147 | } |
| 148 | if (UNLIKELY(is_set && resolved_field->IsFinal() && (fields_class != referring_class))) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 149 | ThrowIllegalAccessErrorFinalField(referrer, resolved_field); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 150 | return NULL; // failure |
| 151 | } else { |
| 152 | FieldHelper fh(resolved_field); |
| 153 | if (UNLIKELY(fh.IsPrimitiveType() != is_primitive || |
| 154 | fh.FieldSize() != expected_size)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 155 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 156 | DCHECK(throw_location.GetMethod() == referrer); |
| 157 | self->ThrowNewExceptionF(throw_location, "Ljava/lang/NoSuchFieldError;", |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 158 | "Attempted read of %zd-bit %s on field '%s'", |
| 159 | expected_size * (32 / sizeof(int32_t)), |
| 160 | is_primitive ? "primitive" : "non-primitive", |
| 161 | PrettyField(resolved_field, true).c_str()); |
| 162 | return NULL; // failure |
Ian Rogers | 60db5ab | 2012-02-20 17:02:00 -0800 | [diff] [blame] | 163 | } |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 164 | } |
| 165 | } |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 166 | if (!is_static) { |
| 167 | // instance fields must be being accessed on an initialized class |
| 168 | return resolved_field; |
| 169 | } else { |
| 170 | // If the class is initialized we're done. |
| 171 | if (fields_class->IsInitialized()) { |
| 172 | return resolved_field; |
| 173 | } else if (Runtime::Current()->GetClassLinker()->EnsureInitialized(fields_class, true, true)) { |
| 174 | // Otherwise let's ensure the class is initialized before resolving the field. |
| 175 | return resolved_field; |
| 176 | } else { |
| 177 | DCHECK(self->IsExceptionPending()); // Throw exception and unwind |
| 178 | return NULL; // failure |
| 179 | } |
| 180 | } |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 181 | } |
| 182 | |
| 183 | // Slow path method resolution |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 184 | mirror::ArtMethod* FindMethodFromCode(uint32_t method_idx, mirror::Object* this_object, |
| 185 | mirror::ArtMethod* referrer, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 186 | Thread* self, bool access_check, InvokeType type) { |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 187 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 188 | bool is_direct = type == kStatic || type == kDirect; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 189 | mirror::ArtMethod* resolved_method = class_linker->ResolveMethod(method_idx, referrer, type); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 190 | if (UNLIKELY(resolved_method == NULL)) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 191 | DCHECK(self->IsExceptionPending()); // Throw exception and unwind. |
| 192 | return NULL; // Failure. |
jeffhao | 262e251 | 2012-12-11 09:46:43 -0800 | [diff] [blame] | 193 | } else if (UNLIKELY(this_object == NULL && type != kStatic)) { |
| 194 | // Maintain interpreter-like semantics where NullPointerException is thrown |
| 195 | // after potential NoSuchMethodError from class linker. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 196 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 197 | DCHECK(referrer == throw_location.GetMethod()); |
| 198 | ThrowNullPointerExceptionForMethodAccess(throw_location, method_idx, type); |
jeffhao | 262e251 | 2012-12-11 09:46:43 -0800 | [diff] [blame] | 199 | return NULL; // Failure. |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 200 | } else { |
| 201 | if (!access_check) { |
| 202 | if (is_direct) { |
| 203 | return resolved_method; |
| 204 | } else if (type == kInterface) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 205 | mirror::ArtMethod* interface_method = |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 206 | this_object->GetClass()->FindVirtualMethodForInterface(resolved_method); |
| 207 | if (UNLIKELY(interface_method == NULL)) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 208 | ThrowIncompatibleClassChangeErrorClassForInterfaceDispatch(resolved_method, this_object, |
| 209 | referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 210 | return NULL; // Failure. |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 211 | } else { |
| 212 | return interface_method; |
| 213 | } |
Ian Rogers | 60db5ab | 2012-02-20 17:02:00 -0800 | [diff] [blame] | 214 | } else { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 215 | mirror::ObjectArray<mirror::ArtMethod>* vtable; |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 216 | uint16_t vtable_index = resolved_method->GetMethodIndex(); |
| 217 | if (type == kSuper) { |
| 218 | vtable = referrer->GetDeclaringClass()->GetSuperClass()->GetVTable(); |
| 219 | } else { |
| 220 | vtable = this_object->GetClass()->GetVTable(); |
| 221 | } |
| 222 | // TODO: eliminate bounds check? |
| 223 | return vtable->Get(vtable_index); |
| 224 | } |
| 225 | } else { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 226 | // Incompatible class change should have been handled in resolve method. |
| 227 | if (UNLIKELY(resolved_method->CheckIncompatibleClassChange(type))) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 228 | ThrowIncompatibleClassChangeError(type, resolved_method->GetInvokeType(), resolved_method, |
| 229 | referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 230 | return NULL; // Failure. |
| 231 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 232 | mirror::Class* methods_class = resolved_method->GetDeclaringClass(); |
| 233 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 234 | if (UNLIKELY(!referring_class->CanAccess(methods_class) || |
| 235 | !referring_class->CanAccessMember(methods_class, |
| 236 | resolved_method->GetAccessFlags()))) { |
| 237 | // The referring class can't access the resolved method, this may occur as a result of a |
| 238 | // protected method being made public by implementing an interface that re-declares the |
| 239 | // method public. Resort to the dex file to determine the correct class for the access check |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 240 | const DexFile& dex_file = *referring_class->GetDexCache()->GetDexFile(); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 241 | methods_class = class_linker->ResolveType(dex_file, |
| 242 | dex_file.GetMethodId(method_idx).class_idx_, |
| 243 | referring_class); |
| 244 | if (UNLIKELY(!referring_class->CanAccess(methods_class))) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 245 | ThrowIllegalAccessErrorClassForMethodDispatch(referring_class, methods_class, |
| 246 | referrer, resolved_method, type); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 247 | return NULL; // Failure. |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 248 | } else if (UNLIKELY(!referring_class->CanAccessMember(methods_class, |
| 249 | resolved_method->GetAccessFlags()))) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 250 | ThrowIllegalAccessErrorMethod(referring_class, resolved_method); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 251 | return NULL; // Failure. |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 252 | } |
| 253 | } |
| 254 | if (is_direct) { |
| 255 | return resolved_method; |
| 256 | } else if (type == kInterface) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 257 | mirror::ArtMethod* interface_method = |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 258 | this_object->GetClass()->FindVirtualMethodForInterface(resolved_method); |
| 259 | if (UNLIKELY(interface_method == NULL)) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 260 | ThrowIncompatibleClassChangeErrorClassForInterfaceDispatch(resolved_method, this_object, |
| 261 | referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 262 | return NULL; // Failure. |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 263 | } else { |
| 264 | return interface_method; |
| 265 | } |
| 266 | } else { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 267 | mirror::ObjectArray<mirror::ArtMethod>* vtable; |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 268 | uint16_t vtable_index = resolved_method->GetMethodIndex(); |
| 269 | if (type == kSuper) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 270 | mirror::Class* super_class = referring_class->GetSuperClass(); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 271 | if (LIKELY(super_class != NULL)) { |
| 272 | vtable = referring_class->GetSuperClass()->GetVTable(); |
| 273 | } else { |
| 274 | vtable = NULL; |
| 275 | } |
| 276 | } else { |
| 277 | vtable = this_object->GetClass()->GetVTable(); |
| 278 | } |
| 279 | if (LIKELY(vtable != NULL && |
| 280 | vtable_index < static_cast<uint32_t>(vtable->GetLength()))) { |
| 281 | return vtable->GetWithoutChecks(vtable_index); |
| 282 | } else { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 283 | // Behavior to agree with that of the verifier. |
| 284 | MethodHelper mh(resolved_method); |
| 285 | ThrowNoSuchMethodError(type, resolved_method->GetDeclaringClass(), mh.GetName(), |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 286 | mh.GetSignature()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 287 | return NULL; // Failure. |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 288 | } |
Ian Rogers | 60db5ab | 2012-02-20 17:02:00 -0800 | [diff] [blame] | 289 | } |
| 290 | } |
| 291 | } |
Ian Rogers | 60db5ab | 2012-02-20 17:02:00 -0800 | [diff] [blame] | 292 | } |
| 293 | |
jeffhao | d752132 | 2012-11-21 15:38:24 -0800 | [diff] [blame] | 294 | void ThrowStackOverflowError(Thread* self) { |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 295 | if (self->IsHandlingStackOverflow()) { |
| 296 | LOG(ERROR) << "Recursive stack overflow."; |
| 297 | // We don't fail here because SetStackEndForStackOverflow will print better diagnostics. |
| 298 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 299 | |
| 300 | if (Runtime::Current()->GetInstrumentation()->AreExitStubsInstalled()) { |
| 301 | // Remove extra entry pushed onto second stack during method tracing. |
| 302 | Runtime::Current()->GetInstrumentation()->PopMethodForUnwind(self, false); |
jeffhao | d752132 | 2012-11-21 15:38:24 -0800 | [diff] [blame] | 303 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 304 | |
jeffhao | d752132 | 2012-11-21 15:38:24 -0800 | [diff] [blame] | 305 | self->SetStackEndForStackOverflow(); // Allow space on the stack for constructor to execute. |
| 306 | JNIEnvExt* env = self->GetJniEnv(); |
| 307 | std::string msg("stack size "); |
| 308 | msg += PrettySize(self->GetStackSize()); |
| 309 | // Use low-level JNI routine and pre-baked error class to avoid class linking operations that |
| 310 | // would consume more stack. |
| 311 | int rc = ::art::ThrowNewException(env, WellKnownClasses::java_lang_StackOverflowError, |
| 312 | msg.c_str(), NULL); |
| 313 | if (rc != JNI_OK) { |
| 314 | // TODO: ThrowNewException failed presumably because of an OOME, we continue to throw the OOME |
| 315 | // or die in the CHECK below. We may want to throw a pre-baked StackOverflowError |
| 316 | // instead. |
| 317 | LOG(ERROR) << "Couldn't throw new StackOverflowError because JNI ThrowNew failed."; |
| 318 | CHECK(self->IsExceptionPending()); |
| 319 | } |
| 320 | self->ResetDefaultStackEnd(); // Return to default stack size. |
| 321 | } |
| 322 | |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 323 | JValue InvokeProxyInvocationHandler(ScopedObjectAccessUnchecked& soa, const char* shorty, |
| 324 | jobject rcvr_jobj, jobject interface_method_jobj, |
| 325 | std::vector<jvalue>& args) { |
| 326 | DCHECK(soa.Env()->IsInstanceOf(rcvr_jobj, WellKnownClasses::java_lang_reflect_Proxy)); |
| 327 | |
| 328 | // Build argument array possibly triggering GC. |
| 329 | soa.Self()->AssertThreadSuspensionIsAllowable(); |
| 330 | jobjectArray args_jobj = NULL; |
| 331 | const JValue zero; |
| 332 | if (args.size() > 0) { |
| 333 | args_jobj = soa.Env()->NewObjectArray(args.size(), WellKnownClasses::java_lang_Object, NULL); |
| 334 | if (args_jobj == NULL) { |
| 335 | CHECK(soa.Self()->IsExceptionPending()); |
| 336 | return zero; |
| 337 | } |
| 338 | for (size_t i = 0; i < args.size(); ++i) { |
| 339 | if (shorty[i + 1] == 'L') { |
| 340 | jobject val = args.at(i).l; |
| 341 | soa.Env()->SetObjectArrayElement(args_jobj, i, val); |
| 342 | } else { |
| 343 | JValue jv; |
| 344 | jv.SetJ(args.at(i).j); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 345 | mirror::Object* val = BoxPrimitive(Primitive::GetType(shorty[i + 1]), jv); |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 346 | if (val == NULL) { |
| 347 | CHECK(soa.Self()->IsExceptionPending()); |
| 348 | return zero; |
| 349 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 350 | soa.Decode<mirror::ObjectArray<mirror::Object>* >(args_jobj)->Set(i, val); |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 351 | } |
| 352 | } |
| 353 | } |
| 354 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 355 | // Call Proxy.invoke(Proxy proxy, ArtMethod method, Object[] args). |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 356 | jvalue invocation_args[3]; |
| 357 | invocation_args[0].l = rcvr_jobj; |
| 358 | invocation_args[1].l = interface_method_jobj; |
| 359 | invocation_args[2].l = args_jobj; |
| 360 | jobject result = |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 361 | soa.Env()->CallStaticObjectMethodA(WellKnownClasses::java_lang_reflect_Proxy, |
| 362 | WellKnownClasses::java_lang_reflect_Proxy_invoke, |
| 363 | invocation_args); |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 364 | |
| 365 | // Unbox result and handle error conditions. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 366 | if (LIKELY(!soa.Self()->IsExceptionPending())) { |
| 367 | if (shorty[0] == 'V' || (shorty[0] == 'L' && result == NULL)) { |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 368 | // Do nothing. |
| 369 | return zero; |
| 370 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 371 | mirror::Object* result_ref = soa.Decode<mirror::Object*>(result); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 372 | mirror::Object* rcvr = soa.Decode<mirror::Object*>(rcvr_jobj); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 373 | mirror::ArtMethod* interface_method = |
| 374 | soa.Decode<mirror::ArtMethod*>(interface_method_jobj); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 375 | mirror::Class* result_type = MethodHelper(interface_method).GetReturnType(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 376 | mirror::ArtMethod* proxy_method; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 377 | if (interface_method->GetDeclaringClass()->IsInterface()) { |
| 378 | proxy_method = rcvr->GetClass()->FindVirtualMethodForInterface(interface_method); |
| 379 | } else { |
| 380 | // Proxy dispatch to a method defined in Object. |
| 381 | DCHECK(interface_method->GetDeclaringClass()->IsObjectClass()); |
| 382 | proxy_method = interface_method; |
| 383 | } |
| 384 | ThrowLocation throw_location(rcvr, proxy_method, -1); |
| 385 | JValue result_unboxed; |
| 386 | if (!UnboxPrimitiveForResult(throw_location, result_ref, result_type, result_unboxed)) { |
Ian Rogers | 530f71c | 2013-02-22 23:29:00 -0800 | [diff] [blame] | 387 | DCHECK(soa.Self()->IsExceptionPending()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 388 | return zero; |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 389 | } |
| 390 | return result_unboxed; |
| 391 | } |
| 392 | } else { |
| 393 | // In the case of checked exceptions that aren't declared, the exception must be wrapped by |
| 394 | // a UndeclaredThrowableException. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 395 | mirror::Throwable* exception = soa.Self()->GetException(NULL); |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 396 | if (exception->IsCheckedException()) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 397 | mirror::Object* rcvr = soa.Decode<mirror::Object*>(rcvr_jobj); |
| 398 | mirror::SynthesizedProxyClass* proxy_class = |
| 399 | down_cast<mirror::SynthesizedProxyClass*>(rcvr->GetClass()); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 400 | mirror::ArtMethod* interface_method = |
| 401 | soa.Decode<mirror::ArtMethod*>(interface_method_jobj); |
| 402 | mirror::ArtMethod* proxy_method = |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 403 | rcvr->GetClass()->FindVirtualMethodForInterface(interface_method); |
| 404 | int throws_index = -1; |
| 405 | size_t num_virt_methods = proxy_class->NumVirtualMethods(); |
| 406 | for (size_t i = 0; i < num_virt_methods; i++) { |
| 407 | if (proxy_class->GetVirtualMethod(i) == proxy_method) { |
| 408 | throws_index = i; |
| 409 | break; |
| 410 | } |
| 411 | } |
| 412 | CHECK_NE(throws_index, -1); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 413 | mirror::ObjectArray<mirror::Class>* declared_exceptions = proxy_class->GetThrows()->Get(throws_index); |
| 414 | mirror::Class* exception_class = exception->GetClass(); |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 415 | bool declares_exception = false; |
| 416 | for (int i = 0; i < declared_exceptions->GetLength() && !declares_exception; i++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 417 | mirror::Class* declared_exception = declared_exceptions->Get(i); |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 418 | declares_exception = declared_exception->IsAssignableFrom(exception_class); |
| 419 | } |
| 420 | if (!declares_exception) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 421 | ThrowLocation throw_location(rcvr, proxy_method, -1); |
| 422 | soa.Self()->ThrowNewWrappedException(throw_location, |
| 423 | "Ljava/lang/reflect/UndeclaredThrowableException;", |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 424 | NULL); |
| 425 | } |
| 426 | } |
| 427 | return zero; |
| 428 | } |
| 429 | } |
Shih-wei Liao | 2d83101 | 2011-09-28 22:06:53 -0700 | [diff] [blame] | 430 | } // namespace art |