Elliott Hughes | 0f3c553 | 2012-03-30 14:51:51 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 The Android Open Source Project |
| 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 | */ |
buzbee | 5433072 | 2011-08-23 16:46:55 -0700 | [diff] [blame] | 16 | |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 17 | #ifndef ART_RUNTIME_ENTRYPOINTS_ENTRYPOINT_UTILS_H_ |
| 18 | #define ART_RUNTIME_ENTRYPOINTS_ENTRYPOINT_UTILS_H_ |
Ian Rogers | 450dcb5 | 2013-09-20 17:36:02 -0700 | [diff] [blame] | 19 | |
| 20 | #include "base/macros.h" |
Shih-wei Liao | 2d83101 | 2011-09-28 22:06:53 -0700 | [diff] [blame] | 21 | #include "class_linker.h" |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 22 | #include "common_throws.h" |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 23 | #include "dex_file.h" |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 24 | #include "indirect_reference_table.h" |
Elliott Hughes | 0f3c553 | 2012-03-30 14:51:51 -0700 | [diff] [blame] | 25 | #include "invoke_type.h" |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 26 | #include "jni_internal.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 27 | #include "mirror/art_method.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 28 | #include "mirror/array.h" |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 29 | #include "mirror/class-inl.h" |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 30 | #include "mirror/object-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 31 | #include "mirror/throwable.h" |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 32 | #include "locks.h" |
Ian Rogers | 450dcb5 | 2013-09-20 17:36:02 -0700 | [diff] [blame] | 33 | #include "object_utils.h" |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 34 | #include "sirt_ref.h" |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 35 | #include "thread.h" |
| 36 | |
Shih-wei Liao | 2d83101 | 2011-09-28 22:06:53 -0700 | [diff] [blame] | 37 | namespace art { |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 38 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 39 | namespace mirror { |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 40 | class Class; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 41 | class ArtField; |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 42 | class Object; |
| 43 | } // namespace mirror |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 44 | |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 45 | // TODO: Fix no thread safety analysis when GCC can handle template specialization. |
| 46 | template <const bool kAccessCheck> |
| 47 | ALWAYS_INLINE static inline mirror::Class* CheckObjectAlloc(uint32_t type_idx, |
| 48 | mirror::ArtMethod* method, |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 49 | Thread* self, bool* slow_path) |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 50 | NO_THREAD_SAFETY_ANALYSIS { |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 51 | mirror::Class* klass = method->GetDexCacheResolvedTypes()->GetWithoutChecks(type_idx); |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 52 | if (UNLIKELY(klass == NULL)) { |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 53 | klass = Runtime::Current()->GetClassLinker()->ResolveType(type_idx, method); |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 54 | *slow_path = true; |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 55 | if (klass == NULL) { |
| 56 | DCHECK(self->IsExceptionPending()); |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 57 | return nullptr; // Failure |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 58 | } |
| 59 | } |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 60 | if (kAccessCheck) { |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 61 | if (UNLIKELY(!klass->IsInstantiable())) { |
| 62 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 63 | self->ThrowNewException(throw_location, "Ljava/lang/InstantiationError;", |
| 64 | PrettyDescriptor(klass).c_str()); |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 65 | *slow_path = true; |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 66 | return nullptr; // Failure |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 67 | } |
| 68 | mirror::Class* referrer = method->GetDeclaringClass(); |
| 69 | if (UNLIKELY(!referrer->CanAccess(klass))) { |
| 70 | ThrowIllegalAccessErrorClass(referrer, klass); |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 71 | *slow_path = true; |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 72 | return nullptr; // Failure |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 73 | } |
| 74 | } |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 75 | if (UNLIKELY(!klass->IsInitialized())) { |
| 76 | SirtRef<mirror::Class> sirt_klass(self, klass); |
| 77 | // The class initializer might cause a GC. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 78 | if (!Runtime::Current()->GetClassLinker()->EnsureInitialized(sirt_klass, true, true)) { |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 79 | DCHECK(self->IsExceptionPending()); |
| 80 | return nullptr; // Failure |
| 81 | } |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 82 | // TODO: EnsureInitialized may cause us to suspend meaning that another thread may try to |
| 83 | // change the allocator while we are stuck in the entrypoints of an old allocator. To handle |
| 84 | // this case we mark the slow path boolean as true so that the caller knows to check the |
| 85 | // allocator type to see if it has changed. |
| 86 | *slow_path = true; |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 87 | return sirt_klass.get(); |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 88 | } |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 89 | return klass; |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 90 | } |
| 91 | |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 92 | // Given the context of a calling Method, use its DexCache to resolve a type to a Class. If it |
| 93 | // cannot be resolved, throw an error. If it can, use it to create an instance. |
| 94 | // When verification/compiler hasn't been able to verify access, optionally perform an access |
| 95 | // check. |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 96 | // TODO: Fix NO_THREAD_SAFETY_ANALYSIS when GCC is smarter. |
| 97 | template <bool kAccessCheck, bool kInstrumented> |
| 98 | ALWAYS_INLINE static inline mirror::Object* AllocObjectFromCode(uint32_t type_idx, |
| 99 | mirror::ArtMethod* method, |
| 100 | Thread* self, |
| 101 | gc::AllocatorType allocator_type) |
| 102 | NO_THREAD_SAFETY_ANALYSIS { |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 103 | bool slow_path = false; |
| 104 | mirror::Class* klass = CheckObjectAlloc<kAccessCheck>(type_idx, method, self, &slow_path); |
| 105 | if (UNLIKELY(slow_path)) { |
| 106 | if (klass == nullptr) { |
| 107 | return nullptr; |
| 108 | } |
| 109 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 110 | return klass->Alloc<kInstrumented>(self, heap->GetCurrentAllocator()); |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 111 | } |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 112 | return klass->Alloc<kInstrumented>(self, allocator_type); |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 113 | } |
| 114 | |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 115 | // TODO: Fix no thread safety analysis when GCC can handle template specialization. |
| 116 | template <bool kAccessCheck> |
| 117 | ALWAYS_INLINE static inline mirror::Class* CheckArrayAlloc(uint32_t type_idx, |
| 118 | mirror::ArtMethod* method, |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 119 | int32_t component_count, |
| 120 | bool* slow_path) |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 121 | NO_THREAD_SAFETY_ANALYSIS { |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 122 | if (UNLIKELY(component_count < 0)) { |
| 123 | ThrowNegativeArraySizeException(component_count); |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 124 | *slow_path = true; |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 125 | return nullptr; // Failure |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 126 | } |
| 127 | mirror::Class* klass = method->GetDexCacheResolvedTypes()->GetWithoutChecks(type_idx); |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 128 | if (UNLIKELY(klass == nullptr)) { // Not in dex cache so try to resolve |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 129 | klass = Runtime::Current()->GetClassLinker()->ResolveType(type_idx, method); |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 130 | *slow_path = true; |
| 131 | if (klass == nullptr) { // Error |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 132 | DCHECK(Thread::Current()->IsExceptionPending()); |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 133 | return nullptr; // Failure |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 134 | } |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 135 | CHECK(klass->IsArrayClass()) << PrettyClass(klass); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 136 | } |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 137 | if (kAccessCheck) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 138 | mirror::Class* referrer = method->GetDeclaringClass(); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 139 | if (UNLIKELY(!referrer->CanAccess(klass))) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 140 | ThrowIllegalAccessErrorClass(referrer, klass); |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 141 | *slow_path = true; |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 142 | return nullptr; // Failure |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 143 | } |
| 144 | } |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 145 | return klass; |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | // Given the context of a calling Method, use its DexCache to resolve a type to an array Class. If |
| 149 | // it cannot be resolved, throw an error. If it can, use it to create an array. |
| 150 | // When verification/compiler hasn't been able to verify access, optionally perform an access |
| 151 | // check. |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 152 | // TODO: Fix no thread safety analysis when GCC can handle template specialization. |
| 153 | template <bool kAccessCheck, bool kInstrumented> |
| 154 | ALWAYS_INLINE static inline mirror::Array* AllocArrayFromCode(uint32_t type_idx, |
| 155 | mirror::ArtMethod* method, |
| 156 | int32_t component_count, |
| 157 | Thread* self, |
| 158 | gc::AllocatorType allocator_type) |
| 159 | NO_THREAD_SAFETY_ANALYSIS { |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 160 | bool slow_path = false; |
| 161 | mirror::Class* klass = CheckArrayAlloc<kAccessCheck>(type_idx, method, component_count, |
| 162 | &slow_path); |
| 163 | if (UNLIKELY(slow_path)) { |
| 164 | if (klass == nullptr) { |
| 165 | return nullptr; |
| 166 | } |
| 167 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 168 | return mirror::Array::Alloc<kInstrumented>(self, klass, component_count, |
| 169 | heap->GetCurrentAllocator()); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 170 | } |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 171 | return mirror::Array::Alloc<kInstrumented>(self, klass, component_count, allocator_type); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 172 | } |
| 173 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 174 | extern mirror::Array* CheckAndAllocArrayFromCode(uint32_t type_idx, mirror::ArtMethod* method, |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 175 | int32_t component_count, Thread* self, |
| 176 | bool access_check, |
| 177 | gc::AllocatorType allocator_type) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 178 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 179 | |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 180 | extern mirror::Array* CheckAndAllocArrayFromCodeInstrumented(uint32_t type_idx, |
| 181 | mirror::ArtMethod* method, |
| 182 | int32_t component_count, Thread* self, |
| 183 | bool access_check, |
| 184 | gc::AllocatorType allocator_type) |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 185 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 186 | |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 187 | // Type of find field operation for fast and slow case. |
| 188 | enum FindFieldType { |
| 189 | InstanceObjectRead, |
| 190 | InstanceObjectWrite, |
| 191 | InstancePrimitiveRead, |
| 192 | InstancePrimitiveWrite, |
| 193 | StaticObjectRead, |
| 194 | StaticObjectWrite, |
| 195 | StaticPrimitiveRead, |
| 196 | StaticPrimitiveWrite, |
| 197 | }; |
| 198 | |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 199 | template<FindFieldType type, bool access_check> |
| 200 | static inline mirror::ArtField* FindFieldFromCode(uint32_t field_idx, const mirror::ArtMethod* referrer, |
| 201 | Thread* self, size_t expected_size) { |
| 202 | bool is_primitive; |
| 203 | bool is_set; |
| 204 | bool is_static; |
| 205 | switch (type) { |
| 206 | case InstanceObjectRead: is_primitive = false; is_set = false; is_static = false; break; |
| 207 | case InstanceObjectWrite: is_primitive = false; is_set = true; is_static = false; break; |
| 208 | case InstancePrimitiveRead: is_primitive = true; is_set = false; is_static = false; break; |
| 209 | case InstancePrimitiveWrite: is_primitive = true; is_set = true; is_static = false; break; |
| 210 | case StaticObjectRead: is_primitive = false; is_set = false; is_static = true; break; |
| 211 | case StaticObjectWrite: is_primitive = false; is_set = true; is_static = true; break; |
| 212 | case StaticPrimitiveRead: is_primitive = true; is_set = false; is_static = true; break; |
| 213 | case StaticPrimitiveWrite: // Keep GCC happy by having a default handler, fall-through. |
| 214 | default: is_primitive = true; is_set = true; is_static = true; break; |
| 215 | } |
| 216 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 217 | mirror::ArtField* resolved_field = class_linker->ResolveField(field_idx, referrer, is_static); |
| 218 | if (UNLIKELY(resolved_field == nullptr)) { |
| 219 | DCHECK(self->IsExceptionPending()); // Throw exception and unwind. |
| 220 | return nullptr; // Failure. |
| 221 | } |
| 222 | mirror::Class* fields_class = resolved_field->GetDeclaringClass(); |
| 223 | if (access_check) { |
| 224 | if (UNLIKELY(resolved_field->IsStatic() != is_static)) { |
| 225 | ThrowIncompatibleClassChangeErrorField(resolved_field, is_static, referrer); |
| 226 | return nullptr; |
| 227 | } |
| 228 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame^] | 229 | if (UNLIKELY(!referring_class->CanAccessResolvedField<true>(fields_class, resolved_field, |
| 230 | field_idx))) { |
| 231 | DCHECK(self->IsExceptionPending()); // Throw exception and unwind. |
| 232 | return nullptr; // Failure. |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 233 | } |
| 234 | if (UNLIKELY(is_set && resolved_field->IsFinal() && (fields_class != referring_class))) { |
| 235 | ThrowIllegalAccessErrorFinalField(referrer, resolved_field); |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame^] | 236 | return nullptr; // Failure. |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 237 | } else { |
| 238 | FieldHelper fh(resolved_field); |
| 239 | if (UNLIKELY(fh.IsPrimitiveType() != is_primitive || |
| 240 | fh.FieldSize() != expected_size)) { |
| 241 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 242 | DCHECK(throw_location.GetMethod() == referrer); |
| 243 | self->ThrowNewExceptionF(throw_location, "Ljava/lang/NoSuchFieldError;", |
| 244 | "Attempted read of %zd-bit %s on field '%s'", |
| 245 | expected_size * (32 / sizeof(int32_t)), |
| 246 | is_primitive ? "primitive" : "non-primitive", |
| 247 | PrettyField(resolved_field, true).c_str()); |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame^] | 248 | return nullptr; // Failure. |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 249 | } |
| 250 | } |
| 251 | } |
| 252 | if (!is_static) { |
| 253 | // instance fields must be being accessed on an initialized class |
| 254 | return resolved_field; |
| 255 | } else { |
| 256 | // If the class is initialized we're done. |
| 257 | if (LIKELY(fields_class->IsInitialized())) { |
| 258 | return resolved_field; |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 259 | } else { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 260 | SirtRef<mirror::Class> sirt_class(self, fields_class); |
| 261 | if (LIKELY(class_linker->EnsureInitialized(sirt_class, true, true))) { |
| 262 | // Otherwise let's ensure the class is initialized before resolving the field. |
| 263 | return resolved_field; |
| 264 | } else { |
| 265 | DCHECK(self->IsExceptionPending()); // Throw exception and unwind |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame^] | 266 | return nullptr; // Failure. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 267 | } |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 268 | } |
| 269 | } |
| 270 | } |
| 271 | |
| 272 | // Explicit template declarations of FindFieldFromCode for all field access types. |
| 273 | #define EXPLICIT_FIND_FIELD_FROM_CODE_TEMPLATE_DECL(_type, _access_check) \ |
| 274 | template SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) ALWAYS_INLINE \ |
Bernhard Rosenkränzer | 4605362 | 2013-12-12 02:15:52 +0100 | [diff] [blame] | 275 | mirror::ArtField* FindFieldFromCode<_type, _access_check>(uint32_t field_idx, \ |
| 276 | const mirror::ArtMethod* referrer, \ |
| 277 | Thread* self, size_t expected_size) \ |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 278 | |
| 279 | #define EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(_type) \ |
| 280 | EXPLICIT_FIND_FIELD_FROM_CODE_TEMPLATE_DECL(_type, false); \ |
| 281 | EXPLICIT_FIND_FIELD_FROM_CODE_TEMPLATE_DECL(_type, true) |
| 282 | |
| 283 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(InstanceObjectRead); |
| 284 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(InstanceObjectWrite); |
| 285 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(InstancePrimitiveRead); |
| 286 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(InstancePrimitiveWrite); |
| 287 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(StaticObjectRead); |
| 288 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(StaticObjectWrite); |
| 289 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(StaticPrimitiveRead); |
| 290 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(StaticPrimitiveWrite); |
| 291 | |
| 292 | #undef EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL |
| 293 | #undef EXPLICIT_FIND_FIELD_FROM_CODE_TEMPLATE_DECL |
| 294 | |
| 295 | template<InvokeType type, bool access_check> |
| 296 | static inline mirror::ArtMethod* FindMethodFromCode(uint32_t method_idx, mirror::Object* this_object, |
| 297 | mirror::ArtMethod* referrer, Thread* self) { |
| 298 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 299 | mirror::ArtMethod* resolved_method = class_linker->ResolveMethod(method_idx, referrer, type); |
| 300 | if (UNLIKELY(resolved_method == nullptr)) { |
| 301 | DCHECK(self->IsExceptionPending()); // Throw exception and unwind. |
| 302 | return nullptr; // Failure. |
| 303 | } else if (UNLIKELY(this_object == nullptr && type != kStatic)) { |
| 304 | // Maintain interpreter-like semantics where NullPointerException is thrown |
| 305 | // after potential NoSuchMethodError from class linker. |
| 306 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 307 | DCHECK(referrer == throw_location.GetMethod()); |
| 308 | ThrowNullPointerExceptionForMethodAccess(throw_location, method_idx, type); |
| 309 | return nullptr; // Failure. |
| 310 | } else if (access_check) { |
| 311 | // Incompatible class change should have been handled in resolve method. |
| 312 | if (UNLIKELY(resolved_method->CheckIncompatibleClassChange(type))) { |
| 313 | ThrowIncompatibleClassChangeError(type, resolved_method->GetInvokeType(), resolved_method, |
| 314 | referrer); |
| 315 | return nullptr; // Failure. |
| 316 | } |
| 317 | mirror::Class* methods_class = resolved_method->GetDeclaringClass(); |
| 318 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame^] | 319 | if (!referring_class->CanAccessResolvedMethod<true, type>(methods_class, resolved_method, |
| 320 | method_idx)) { |
| 321 | DCHECK(self->IsExceptionPending()); // Throw exception and unwind. |
| 322 | return nullptr; // Failure. |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 323 | } |
| 324 | } |
| 325 | switch (type) { |
| 326 | case kStatic: |
| 327 | case kDirect: |
| 328 | return resolved_method; |
| 329 | case kVirtual: { |
| 330 | mirror::ObjectArray<mirror::ArtMethod>* vtable = this_object->GetClass()->GetVTable(); |
| 331 | uint16_t vtable_index = resolved_method->GetMethodIndex(); |
| 332 | if (access_check && |
| 333 | (vtable == nullptr || vtable_index >= static_cast<uint32_t>(vtable->GetLength()))) { |
| 334 | // Behavior to agree with that of the verifier. |
| 335 | MethodHelper mh(resolved_method); |
| 336 | ThrowNoSuchMethodError(type, resolved_method->GetDeclaringClass(), mh.GetName(), |
| 337 | mh.GetSignature()); |
| 338 | return nullptr; // Failure. |
| 339 | } |
| 340 | DCHECK(vtable != nullptr); |
| 341 | return vtable->GetWithoutChecks(vtable_index); |
| 342 | } |
| 343 | case kSuper: { |
| 344 | mirror::Class* super_class = referrer->GetDeclaringClass()->GetSuperClass(); |
| 345 | uint16_t vtable_index = resolved_method->GetMethodIndex(); |
| 346 | mirror::ObjectArray<mirror::ArtMethod>* vtable; |
| 347 | if (access_check) { |
| 348 | // Check existence of super class. |
| 349 | vtable = (super_class != nullptr) ? super_class->GetVTable() : nullptr; |
| 350 | if (vtable == nullptr || vtable_index >= static_cast<uint32_t>(vtable->GetLength())) { |
| 351 | // Behavior to agree with that of the verifier. |
| 352 | MethodHelper mh(resolved_method); |
| 353 | ThrowNoSuchMethodError(type, resolved_method->GetDeclaringClass(), mh.GetName(), |
| 354 | mh.GetSignature()); |
| 355 | return nullptr; // Failure. |
| 356 | } |
| 357 | } else { |
| 358 | // Super class must exist. |
| 359 | DCHECK(super_class != nullptr); |
| 360 | vtable = super_class->GetVTable(); |
| 361 | } |
| 362 | DCHECK(vtable != nullptr); |
| 363 | return vtable->GetWithoutChecks(vtable_index); |
| 364 | } |
| 365 | case kInterface: { |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 366 | uint32_t imt_index = resolved_method->GetDexMethodIndex() % ClassLinker::kImtSize; |
| 367 | mirror::ObjectArray<mirror::ArtMethod>* imt_table = this_object->GetClass()->GetImTable(); |
| 368 | mirror::ArtMethod* imt_method = imt_table->Get(imt_index); |
| 369 | if (!imt_method->IsImtConflictMethod()) { |
| 370 | return imt_method; |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 371 | } else { |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 372 | mirror::ArtMethod* interface_method = |
| 373 | this_object->GetClass()->FindVirtualMethodForInterface(resolved_method); |
| 374 | if (UNLIKELY(interface_method == nullptr)) { |
| 375 | ThrowIncompatibleClassChangeErrorClassForInterfaceDispatch(resolved_method, this_object, |
| 376 | referrer); |
| 377 | return nullptr; // Failure. |
| 378 | } else { |
| 379 | return interface_method; |
| 380 | } |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 381 | } |
| 382 | } |
| 383 | default: |
| 384 | LOG(FATAL) << "Unknown invoke type " << type; |
| 385 | return nullptr; // Failure. |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | // Explicit template declarations of FindMethodFromCode for all invoke types. |
Bernhard Rosenkränzer | 4605362 | 2013-12-12 02:15:52 +0100 | [diff] [blame] | 390 | #define EXPLICIT_FIND_METHOD_FROM_CODE_TEMPLATE_DECL(_type, _access_check) \ |
| 391 | template SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) ALWAYS_INLINE \ |
| 392 | mirror::ArtMethod* FindMethodFromCode<_type, _access_check>(uint32_t method_idx, \ |
| 393 | mirror::Object* this_object, \ |
| 394 | mirror::ArtMethod* referrer, \ |
| 395 | Thread* self) |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 396 | #define EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL(_type) \ |
| 397 | EXPLICIT_FIND_METHOD_FROM_CODE_TEMPLATE_DECL(_type, false); \ |
| 398 | EXPLICIT_FIND_METHOD_FROM_CODE_TEMPLATE_DECL(_type, true) |
| 399 | |
| 400 | EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL(kStatic); |
| 401 | EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL(kDirect); |
| 402 | EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL(kVirtual); |
| 403 | EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL(kSuper); |
| 404 | EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL(kInterface); |
| 405 | |
| 406 | #undef EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL |
| 407 | #undef EXPLICIT_FIND_METHOD_FROM_CODE_TEMPLATE_DECL |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 408 | |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 409 | // Fast path field resolution that can't initialize classes or throw exceptions. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 410 | static inline mirror::ArtField* FindFieldFast(uint32_t field_idx, |
| 411 | const mirror::ArtMethod* referrer, |
| 412 | FindFieldType type, size_t expected_size) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 413 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 414 | mirror::ArtField* resolved_field = |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 415 | referrer->GetDeclaringClass()->GetDexCache()->GetResolvedField(field_idx); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 416 | if (UNLIKELY(resolved_field == NULL)) { |
| 417 | return NULL; |
| 418 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 419 | mirror::Class* fields_class = resolved_field->GetDeclaringClass(); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 420 | // Check class is initiliazed or initializing. |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 421 | if (UNLIKELY(!fields_class->IsInitializing())) { |
| 422 | return NULL; |
| 423 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 424 | // Check for incompatible class change. |
| 425 | bool is_primitive; |
| 426 | bool is_set; |
| 427 | bool is_static; |
| 428 | switch (type) { |
| 429 | case InstanceObjectRead: is_primitive = false; is_set = false; is_static = false; break; |
| 430 | case InstanceObjectWrite: is_primitive = false; is_set = true; is_static = false; break; |
| 431 | case InstancePrimitiveRead: is_primitive = true; is_set = false; is_static = false; break; |
| 432 | case InstancePrimitiveWrite: is_primitive = true; is_set = true; is_static = false; break; |
| 433 | case StaticObjectRead: is_primitive = false; is_set = false; is_static = true; break; |
| 434 | case StaticObjectWrite: is_primitive = false; is_set = true; is_static = true; break; |
| 435 | case StaticPrimitiveRead: is_primitive = true; is_set = false; is_static = true; break; |
| 436 | case StaticPrimitiveWrite: is_primitive = true; is_set = true; is_static = true; break; |
Brian Carlstrom | f69863b | 2013-07-17 21:53:13 -0700 | [diff] [blame] | 437 | default: |
| 438 | LOG(FATAL) << "UNREACHABLE"; // Assignment below to avoid GCC warnings. |
| 439 | is_primitive = true; |
| 440 | is_set = true; |
| 441 | is_static = true; |
| 442 | break; |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 443 | } |
| 444 | if (UNLIKELY(resolved_field->IsStatic() != is_static)) { |
| 445 | // Incompatible class change. |
| 446 | return NULL; |
| 447 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 448 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 449 | if (UNLIKELY(!referring_class->CanAccess(fields_class) || |
| 450 | !referring_class->CanAccessMember(fields_class, |
| 451 | resolved_field->GetAccessFlags()) || |
| 452 | (is_set && resolved_field->IsFinal() && (fields_class != referring_class)))) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 453 | // Illegal access. |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 454 | return NULL; |
| 455 | } |
| 456 | FieldHelper fh(resolved_field); |
| 457 | if (UNLIKELY(fh.IsPrimitiveType() != is_primitive || |
| 458 | fh.FieldSize() != expected_size)) { |
| 459 | return NULL; |
| 460 | } |
| 461 | return resolved_field; |
| 462 | } |
| 463 | |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 464 | // Fast path method resolution that can't throw exceptions. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 465 | static inline mirror::ArtMethod* FindMethodFast(uint32_t method_idx, |
| 466 | mirror::Object* this_object, |
| 467 | const mirror::ArtMethod* referrer, |
| 468 | bool access_check, InvokeType type) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 469 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 470 | bool is_direct = type == kStatic || type == kDirect; |
| 471 | if (UNLIKELY(this_object == NULL && !is_direct)) { |
| 472 | return NULL; |
| 473 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 474 | mirror::ArtMethod* resolved_method = |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 475 | referrer->GetDeclaringClass()->GetDexCache()->GetResolvedMethod(method_idx); |
| 476 | if (UNLIKELY(resolved_method == NULL)) { |
| 477 | return NULL; |
| 478 | } |
| 479 | if (access_check) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 480 | // Check for incompatible class change errors and access. |
| 481 | bool icce = resolved_method->CheckIncompatibleClassChange(type); |
| 482 | if (UNLIKELY(icce)) { |
| 483 | return NULL; |
| 484 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 485 | mirror::Class* methods_class = resolved_method->GetDeclaringClass(); |
| 486 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 487 | if (UNLIKELY(!referring_class->CanAccess(methods_class) || |
| 488 | !referring_class->CanAccessMember(methods_class, |
| 489 | resolved_method->GetAccessFlags()))) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 490 | // Potential illegal access, may need to refine the method's class. |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 491 | return NULL; |
| 492 | } |
| 493 | } |
| 494 | if (type == kInterface) { // Most common form of slow path dispatch. |
| 495 | return this_object->GetClass()->FindVirtualMethodForInterface(resolved_method); |
| 496 | } else if (is_direct) { |
| 497 | return resolved_method; |
| 498 | } else if (type == kSuper) { |
| 499 | return referrer->GetDeclaringClass()->GetSuperClass()->GetVTable()-> |
| 500 | Get(resolved_method->GetMethodIndex()); |
| 501 | } else { |
| 502 | DCHECK(type == kVirtual); |
| 503 | return this_object->GetClass()->GetVTable()->Get(resolved_method->GetMethodIndex()); |
| 504 | } |
| 505 | } |
| 506 | |
Ian Rogers | fa46d3e | 2013-05-15 00:16:04 -0700 | [diff] [blame] | 507 | static inline mirror::Class* ResolveVerifyAndClinit(uint32_t type_idx, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 508 | const mirror::ArtMethod* referrer, |
Ian Rogers | fa46d3e | 2013-05-15 00:16:04 -0700 | [diff] [blame] | 509 | Thread* self, bool can_run_clinit, |
| 510 | bool verify_access) |
| 511 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 512 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 513 | mirror::Class* klass = class_linker->ResolveType(type_idx, referrer); |
Ian Rogers | 5ddb410 | 2014-01-07 08:58:46 -0800 | [diff] [blame] | 514 | if (UNLIKELY(klass == nullptr)) { |
Ian Rogers | fa46d3e | 2013-05-15 00:16:04 -0700 | [diff] [blame] | 515 | CHECK(self->IsExceptionPending()); |
Ian Rogers | 5ddb410 | 2014-01-07 08:58:46 -0800 | [diff] [blame] | 516 | return nullptr; // Failure - Indicate to caller to deliver exception |
Ian Rogers | fa46d3e | 2013-05-15 00:16:04 -0700 | [diff] [blame] | 517 | } |
| 518 | // Perform access check if necessary. |
| 519 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
| 520 | if (verify_access && UNLIKELY(!referring_class->CanAccess(klass))) { |
| 521 | ThrowIllegalAccessErrorClass(referring_class, klass); |
Ian Rogers | 5ddb410 | 2014-01-07 08:58:46 -0800 | [diff] [blame] | 522 | return nullptr; // Failure - Indicate to caller to deliver exception |
Ian Rogers | fa46d3e | 2013-05-15 00:16:04 -0700 | [diff] [blame] | 523 | } |
| 524 | // If we're just implementing const-class, we shouldn't call <clinit>. |
| 525 | if (!can_run_clinit) { |
| 526 | return klass; |
| 527 | } |
| 528 | // If we are the <clinit> of this class, just return our storage. |
| 529 | // |
| 530 | // Do not set the DexCache InitializedStaticStorage, since that implies <clinit> has finished |
| 531 | // running. |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 532 | if (klass == referring_class && referrer->IsConstructor() && referrer->IsStatic()) { |
Ian Rogers | fa46d3e | 2013-05-15 00:16:04 -0700 | [diff] [blame] | 533 | return klass; |
| 534 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 535 | SirtRef<mirror::Class> sirt_class(self, klass); |
| 536 | if (!class_linker->EnsureInitialized(sirt_class, true, true)) { |
Ian Rogers | fa46d3e | 2013-05-15 00:16:04 -0700 | [diff] [blame] | 537 | CHECK(self->IsExceptionPending()); |
Ian Rogers | 5ddb410 | 2014-01-07 08:58:46 -0800 | [diff] [blame] | 538 | return nullptr; // Failure - Indicate to caller to deliver exception |
Ian Rogers | fa46d3e | 2013-05-15 00:16:04 -0700 | [diff] [blame] | 539 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 540 | return sirt_class.get(); |
Ian Rogers | fa46d3e | 2013-05-15 00:16:04 -0700 | [diff] [blame] | 541 | } |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 542 | |
jeffhao | d752132 | 2012-11-21 15:38:24 -0800 | [diff] [blame] | 543 | extern void ThrowStackOverflowError(Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 544 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 545 | static inline mirror::String* ResolveStringFromCode(const mirror::ArtMethod* referrer, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 546 | uint32_t string_idx) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 547 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 548 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 549 | return class_linker->ResolveString(string_idx, referrer); |
| 550 | } |
Shih-wei Liao | 2d83101 | 2011-09-28 22:06:53 -0700 | [diff] [blame] | 551 | |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 552 | static inline void UnlockJniSynchronizedMethod(jobject locked, Thread* self) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 553 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 554 | UNLOCK_FUNCTION(monitor_lock_) { |
| 555 | // Save any pending exception over monitor exit call. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 556 | mirror::Throwable* saved_exception = NULL; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 557 | ThrowLocation saved_throw_location; |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 558 | if (UNLIKELY(self->IsExceptionPending())) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 559 | saved_exception = self->GetException(&saved_throw_location); |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 560 | self->ClearException(); |
| 561 | } |
| 562 | // Decode locked object and unlock, before popping local references. |
| 563 | self->DecodeJObject(locked)->MonitorExit(self); |
| 564 | if (UNLIKELY(self->IsExceptionPending())) { |
| 565 | LOG(FATAL) << "Synchronized JNI code returning with an exception:\n" |
| 566 | << saved_exception->Dump() |
| 567 | << "\nEncountered second exception during implicit MonitorExit:\n" |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 568 | << self->GetException(NULL)->Dump(); |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 569 | } |
| 570 | // Restore pending exception. |
| 571 | if (saved_exception != NULL) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 572 | self->SetException(saved_throw_location, saved_exception); |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 573 | } |
| 574 | } |
| 575 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 576 | static inline void CheckReferenceResult(mirror::Object* o, Thread* self) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 577 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 578 | if (o == NULL) { |
| 579 | return; |
| 580 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 581 | mirror::ArtMethod* m = self->GetCurrentMethod(NULL); |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 582 | if (o == kInvalidIndirectRefObject) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 583 | JniAbortF(NULL, "invalid reference returned from %s", PrettyMethod(m).c_str()); |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 584 | } |
| 585 | // Make sure that the result is an instance of the type this method was expected to return. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 586 | mirror::Class* return_type = MethodHelper(m).GetReturnType(); |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 587 | |
| 588 | if (!o->InstanceOf(return_type)) { |
| 589 | JniAbortF(NULL, "attempt to return an instance of %s from %s", |
| 590 | PrettyTypeOf(o).c_str(), PrettyMethod(m).c_str()); |
| 591 | } |
| 592 | } |
| 593 | |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 594 | static inline void CheckSuspend(Thread* thread) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
jeffhao | 373c52f | 2012-11-20 16:11:52 -0800 | [diff] [blame] | 595 | for (;;) { |
| 596 | if (thread->ReadFlag(kCheckpointRequest)) { |
| 597 | thread->RunCheckpointFunction(); |
jeffhao | 373c52f | 2012-11-20 16:11:52 -0800 | [diff] [blame] | 598 | } else if (thread->ReadFlag(kSuspendRequest)) { |
| 599 | thread->FullSuspendCheck(); |
| 600 | } else { |
| 601 | break; |
| 602 | } |
| 603 | } |
| 604 | } |
| 605 | |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 606 | JValue InvokeProxyInvocationHandler(ScopedObjectAccessUnchecked& soa, const char* shorty, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 607 | jobject rcvr_jobj, jobject interface_art_method_jobj, |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 608 | std::vector<jvalue>& args) |
Brian Carlstrom | 02c8cc6 | 2013-07-18 15:54:44 -0700 | [diff] [blame] | 609 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 610 | |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 611 | // Entry point for deoptimization. |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 612 | extern "C" void art_quick_deoptimize(); |
| 613 | static inline uintptr_t GetQuickDeoptimizationEntryPoint() { |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 614 | return reinterpret_cast<uintptr_t>(art_quick_deoptimize); |
| 615 | } |
| 616 | |
| 617 | // Return address of instrumentation stub. |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 618 | extern "C" void art_quick_instrumentation_entry(void*); |
| 619 | static inline void* GetQuickInstrumentationEntryPoint() { |
| 620 | return reinterpret_cast<void*>(art_quick_instrumentation_entry); |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 621 | } |
| 622 | |
| 623 | // The return_pc of instrumentation exit stub. |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 624 | extern "C" void art_quick_instrumentation_exit(); |
| 625 | static inline uintptr_t GetQuickInstrumentationExitPc() { |
| 626 | return reinterpret_cast<uintptr_t>(art_quick_instrumentation_exit); |
| 627 | } |
| 628 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 629 | extern "C" void art_portable_to_interpreter_bridge(mirror::ArtMethod*); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 630 | static inline const void* GetPortableToInterpreterBridge() { |
| 631 | return reinterpret_cast<void*>(art_portable_to_interpreter_bridge); |
| 632 | } |
| 633 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 634 | extern "C" void art_quick_to_interpreter_bridge(mirror::ArtMethod*); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 635 | static inline const void* GetQuickToInterpreterBridge() { |
| 636 | return reinterpret_cast<void*>(art_quick_to_interpreter_bridge); |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 637 | } |
| 638 | |
| 639 | // Return address of interpreter stub. |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 640 | static inline const void* GetCompiledCodeToInterpreterBridge() { |
| 641 | #if defined(ART_USE_PORTABLE_COMPILER) |
| 642 | return GetPortableToInterpreterBridge(); |
| 643 | #else |
| 644 | return GetQuickToInterpreterBridge(); |
| 645 | #endif |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 646 | } |
| 647 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 648 | |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 649 | static inline const void* GetPortableResolutionTrampoline(ClassLinker* class_linker) { |
| 650 | return class_linker->GetPortableResolutionTrampoline(); |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 651 | } |
| 652 | |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 653 | static inline const void* GetQuickResolutionTrampoline(ClassLinker* class_linker) { |
| 654 | return class_linker->GetQuickResolutionTrampoline(); |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 655 | } |
| 656 | |
| 657 | // Return address of resolution trampoline stub for defined compiler. |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 658 | static inline const void* GetResolutionTrampoline(ClassLinker* class_linker) { |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 659 | #if defined(ART_USE_PORTABLE_COMPILER) |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 660 | return GetPortableResolutionTrampoline(class_linker); |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 661 | #else |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 662 | return GetQuickResolutionTrampoline(class_linker); |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 663 | #endif |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 664 | } |
| 665 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 666 | static inline const void* GetPortableImtConflictTrampoline(ClassLinker* class_linker) { |
| 667 | return class_linker->GetPortableImtConflictTrampoline(); |
| 668 | } |
| 669 | |
| 670 | static inline const void* GetQuickImtConflictTrampoline(ClassLinker* class_linker) { |
| 671 | return class_linker->GetQuickImtConflictTrampoline(); |
| 672 | } |
| 673 | |
| 674 | // Return address of imt conflict trampoline stub for defined compiler. |
| 675 | static inline const void* GetImtConflictTrampoline(ClassLinker* class_linker) { |
| 676 | #if defined(ART_USE_PORTABLE_COMPILER) |
| 677 | return GetPortableImtConflictTrampoline(class_linker); |
| 678 | #else |
| 679 | return GetQuickImtConflictTrampoline(class_linker); |
| 680 | #endif |
| 681 | } |
| 682 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 683 | extern "C" void art_portable_proxy_invoke_handler(); |
| 684 | static inline const void* GetPortableProxyInvokeHandler() { |
| 685 | return reinterpret_cast<void*>(art_portable_proxy_invoke_handler); |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 686 | } |
| 687 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 688 | extern "C" void art_quick_proxy_invoke_handler(); |
| 689 | static inline const void* GetQuickProxyInvokeHandler() { |
| 690 | return reinterpret_cast<void*>(art_quick_proxy_invoke_handler); |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 691 | } |
| 692 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 693 | static inline const void* GetProxyInvokeHandler() { |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 694 | #if defined(ART_USE_PORTABLE_COMPILER) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 695 | return GetPortableProxyInvokeHandler(); |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 696 | #else |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 697 | return GetQuickProxyInvokeHandler(); |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 698 | #endif |
| 699 | } |
| 700 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 701 | extern "C" void* art_jni_dlsym_lookup_stub(JNIEnv*, jobject); |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 702 | static inline void* GetJniDlsymLookupStub() { |
| 703 | return reinterpret_cast<void*>(art_jni_dlsym_lookup_stub); |
| 704 | } |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 705 | |
Ian Rogers | 450dcb5 | 2013-09-20 17:36:02 -0700 | [diff] [blame] | 706 | template <typename INT_TYPE, typename FLOAT_TYPE> |
| 707 | static inline INT_TYPE art_float_to_integral(FLOAT_TYPE f) { |
| 708 | const INT_TYPE kMaxInt = static_cast<INT_TYPE>(std::numeric_limits<INT_TYPE>::max()); |
| 709 | const INT_TYPE kMinInt = static_cast<INT_TYPE>(std::numeric_limits<INT_TYPE>::min()); |
| 710 | const FLOAT_TYPE kMaxIntAsFloat = static_cast<FLOAT_TYPE>(kMaxInt); |
| 711 | const FLOAT_TYPE kMinIntAsFloat = static_cast<FLOAT_TYPE>(kMinInt); |
| 712 | if (LIKELY(f > kMinIntAsFloat)) { |
| 713 | if (LIKELY(f < kMaxIntAsFloat)) { |
| 714 | return static_cast<INT_TYPE>(f); |
| 715 | } else { |
| 716 | return kMaxInt; |
| 717 | } |
| 718 | } else { |
| 719 | return (f != f) ? 0 : kMinInt; // f != f implies NaN |
| 720 | } |
| 721 | } |
| 722 | |
Shih-wei Liao | 2d83101 | 2011-09-28 22:06:53 -0700 | [diff] [blame] | 723 | } // namespace art |
Ian Rogers | ad42e13 | 2011-09-17 20:23:33 -0700 | [diff] [blame] | 724 | |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 725 | #endif // ART_RUNTIME_ENTRYPOINTS_ENTRYPOINT_UTILS_H_ |