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" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 30 | #include "mirror/throwable.h" |
Ian Rogers | 450dcb5 | 2013-09-20 17:36:02 -0700 | [diff] [blame] | 31 | #include "object_utils.h" |
Dragos Sbirlea | bd136a2 | 2013-08-13 18:07:04 -0700 | [diff] [blame] | 32 | |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 33 | #include "thread.h" |
| 34 | |
Shih-wei Liao | 2d83101 | 2011-09-28 22:06:53 -0700 | [diff] [blame] | 35 | namespace art { |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 36 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 37 | namespace mirror { |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 38 | class Class; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 39 | class ArtField; |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 40 | class Object; |
| 41 | } // namespace mirror |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 42 | |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 43 | static inline bool CheckObjectAlloc(uint32_t type_idx, mirror::ArtMethod* method, |
| 44 | Thread* self, |
| 45 | bool access_check, |
| 46 | mirror::Class** klass_ptr) |
| 47 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 48 | mirror::Class* klass = method->GetDexCacheResolvedTypes()->GetWithoutChecks(type_idx); |
| 49 | Runtime* runtime = Runtime::Current(); |
| 50 | if (UNLIKELY(klass == NULL)) { |
| 51 | klass = runtime->GetClassLinker()->ResolveType(type_idx, method); |
| 52 | if (klass == NULL) { |
| 53 | DCHECK(self->IsExceptionPending()); |
| 54 | return false; // Failure |
| 55 | } |
| 56 | } |
| 57 | if (access_check) { |
| 58 | if (UNLIKELY(!klass->IsInstantiable())) { |
| 59 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 60 | self->ThrowNewException(throw_location, "Ljava/lang/InstantiationError;", |
| 61 | PrettyDescriptor(klass).c_str()); |
| 62 | return false; // Failure |
| 63 | } |
| 64 | mirror::Class* referrer = method->GetDeclaringClass(); |
| 65 | if (UNLIKELY(!referrer->CanAccess(klass))) { |
| 66 | ThrowIllegalAccessErrorClass(referrer, klass); |
| 67 | return false; // Failure |
| 68 | } |
| 69 | } |
| 70 | if (!klass->IsInitialized() && |
| 71 | !runtime->GetClassLinker()->EnsureInitialized(klass, true, true)) { |
| 72 | DCHECK(self->IsExceptionPending()); |
| 73 | return false; // Failure |
| 74 | } |
| 75 | *klass_ptr = klass; |
| 76 | return true; |
| 77 | } |
| 78 | |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 79 | // Given the context of a calling Method, use its DexCache to resolve a type to a Class. If it |
| 80 | // cannot be resolved, throw an error. If it can, use it to create an instance. |
| 81 | // When verification/compiler hasn't been able to verify access, optionally perform an access |
| 82 | // check. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 83 | static inline mirror::Object* AllocObjectFromCode(uint32_t type_idx, mirror::ArtMethod* method, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 84 | Thread* self, |
| 85 | bool access_check) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 86 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 87 | mirror::Class* klass; |
| 88 | if (UNLIKELY(!CheckObjectAlloc(type_idx, method, self, access_check, &klass))) { |
| 89 | return NULL; |
| 90 | } |
| 91 | return klass->AllocObjectUninstrumented(self); |
| 92 | } |
| 93 | |
| 94 | static inline mirror::Object* AllocObjectFromCodeInstrumented(uint32_t type_idx, mirror::ArtMethod* method, |
| 95 | Thread* self, |
| 96 | bool access_check) |
| 97 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 98 | mirror::Class* klass; |
| 99 | if (UNLIKELY(!CheckObjectAlloc(type_idx, method, self, access_check, &klass))) { |
| 100 | return NULL; |
| 101 | } |
| 102 | return klass->AllocObjectInstrumented(self); |
| 103 | } |
| 104 | |
| 105 | static inline bool CheckArrayAlloc(uint32_t type_idx, mirror::ArtMethod* method, |
| 106 | int32_t component_count, |
| 107 | bool access_check, mirror::Class** klass_ptr) |
| 108 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 109 | if (UNLIKELY(component_count < 0)) { |
| 110 | ThrowNegativeArraySizeException(component_count); |
| 111 | return false; // Failure |
| 112 | } |
| 113 | mirror::Class* klass = method->GetDexCacheResolvedTypes()->GetWithoutChecks(type_idx); |
| 114 | if (UNLIKELY(klass == NULL)) { // Not in dex cache so try to resolve |
| 115 | klass = Runtime::Current()->GetClassLinker()->ResolveType(type_idx, method); |
| 116 | if (klass == NULL) { // Error |
| 117 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 118 | return false; // Failure |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 119 | } |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 120 | CHECK(klass->IsArrayClass()) << PrettyClass(klass); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 121 | } |
| 122 | if (access_check) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 123 | mirror::Class* referrer = method->GetDeclaringClass(); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 124 | if (UNLIKELY(!referrer->CanAccess(klass))) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 125 | ThrowIllegalAccessErrorClass(referrer, klass); |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 126 | return false; // Failure |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 127 | } |
| 128 | } |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 129 | *klass_ptr = klass; |
| 130 | return true; |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 131 | } |
| 132 | |
| 133 | // Given the context of a calling Method, use its DexCache to resolve a type to an array Class. If |
| 134 | // it cannot be resolved, throw an error. If it can, use it to create an array. |
| 135 | // When verification/compiler hasn't been able to verify access, optionally perform an access |
| 136 | // check. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 137 | static inline mirror::Array* AllocArrayFromCode(uint32_t type_idx, mirror::ArtMethod* method, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 138 | int32_t component_count, |
| 139 | Thread* self, bool access_check) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 140 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 141 | mirror::Class* klass; |
| 142 | if (UNLIKELY(!CheckArrayAlloc(type_idx, method, component_count, access_check, &klass))) { |
| 143 | return NULL; |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 144 | } |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 145 | return mirror::Array::AllocUninstrumented(self, klass, component_count); |
| 146 | } |
| 147 | |
| 148 | static inline mirror::Array* AllocArrayFromCodeInstrumented(uint32_t type_idx, mirror::ArtMethod* method, |
| 149 | int32_t component_count, |
| 150 | Thread* self, bool access_check) |
| 151 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 152 | mirror::Class* klass; |
| 153 | if (UNLIKELY(!CheckArrayAlloc(type_idx, method, component_count, access_check, &klass))) { |
| 154 | return NULL; |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 155 | } |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 156 | return mirror::Array::AllocInstrumented(self, klass, component_count); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 157 | } |
| 158 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 159 | extern mirror::Array* CheckAndAllocArrayFromCode(uint32_t type_idx, mirror::ArtMethod* method, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 160 | int32_t component_count, |
| 161 | Thread* self, bool access_check) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 162 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 163 | |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 164 | extern mirror::Array* CheckAndAllocArrayFromCodeInstrumented(uint32_t type_idx, mirror::ArtMethod* method, |
| 165 | int32_t component_count, |
| 166 | Thread* self, bool access_check) |
| 167 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 168 | |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 169 | // Type of find field operation for fast and slow case. |
| 170 | enum FindFieldType { |
| 171 | InstanceObjectRead, |
| 172 | InstanceObjectWrite, |
| 173 | InstancePrimitiveRead, |
| 174 | InstancePrimitiveWrite, |
| 175 | StaticObjectRead, |
| 176 | StaticObjectWrite, |
| 177 | StaticPrimitiveRead, |
| 178 | StaticPrimitiveWrite, |
| 179 | }; |
| 180 | |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 181 | template<FindFieldType type, bool access_check> |
| 182 | static inline mirror::ArtField* FindFieldFromCode(uint32_t field_idx, const mirror::ArtMethod* referrer, |
| 183 | Thread* self, size_t expected_size) { |
| 184 | bool is_primitive; |
| 185 | bool is_set; |
| 186 | bool is_static; |
| 187 | switch (type) { |
| 188 | case InstanceObjectRead: is_primitive = false; is_set = false; is_static = false; break; |
| 189 | case InstanceObjectWrite: is_primitive = false; is_set = true; is_static = false; break; |
| 190 | case InstancePrimitiveRead: is_primitive = true; is_set = false; is_static = false; break; |
| 191 | case InstancePrimitiveWrite: is_primitive = true; is_set = true; is_static = false; break; |
| 192 | case StaticObjectRead: is_primitive = false; is_set = false; is_static = true; break; |
| 193 | case StaticObjectWrite: is_primitive = false; is_set = true; is_static = true; break; |
| 194 | case StaticPrimitiveRead: is_primitive = true; is_set = false; is_static = true; break; |
| 195 | case StaticPrimitiveWrite: // Keep GCC happy by having a default handler, fall-through. |
| 196 | default: is_primitive = true; is_set = true; is_static = true; break; |
| 197 | } |
| 198 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 199 | mirror::ArtField* resolved_field = class_linker->ResolveField(field_idx, referrer, is_static); |
| 200 | if (UNLIKELY(resolved_field == nullptr)) { |
| 201 | DCHECK(self->IsExceptionPending()); // Throw exception and unwind. |
| 202 | return nullptr; // Failure. |
| 203 | } |
| 204 | mirror::Class* fields_class = resolved_field->GetDeclaringClass(); |
| 205 | if (access_check) { |
| 206 | if (UNLIKELY(resolved_field->IsStatic() != is_static)) { |
| 207 | ThrowIncompatibleClassChangeErrorField(resolved_field, is_static, referrer); |
| 208 | return nullptr; |
| 209 | } |
| 210 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
| 211 | if (UNLIKELY(!referring_class->CanAccess(fields_class) || |
| 212 | !referring_class->CanAccessMember(fields_class, |
| 213 | resolved_field->GetAccessFlags()))) { |
| 214 | // The referring class can't access the resolved field, this may occur as a result of a |
| 215 | // protected field being made public by a sub-class. Resort to the dex file to determine |
| 216 | // the correct class for the access check. |
| 217 | const DexFile& dex_file = *referring_class->GetDexCache()->GetDexFile(); |
| 218 | fields_class = class_linker->ResolveType(dex_file, |
| 219 | dex_file.GetFieldId(field_idx).class_idx_, |
| 220 | referring_class); |
| 221 | if (UNLIKELY(!referring_class->CanAccess(fields_class))) { |
| 222 | ThrowIllegalAccessErrorClass(referring_class, fields_class); |
| 223 | return nullptr; // failure |
| 224 | } else if (UNLIKELY(!referring_class->CanAccessMember(fields_class, |
| 225 | resolved_field->GetAccessFlags()))) { |
| 226 | ThrowIllegalAccessErrorField(referring_class, resolved_field); |
| 227 | return nullptr; // failure |
| 228 | } |
| 229 | } |
| 230 | if (UNLIKELY(is_set && resolved_field->IsFinal() && (fields_class != referring_class))) { |
| 231 | ThrowIllegalAccessErrorFinalField(referrer, resolved_field); |
| 232 | return nullptr; // failure |
| 233 | } else { |
| 234 | FieldHelper fh(resolved_field); |
| 235 | if (UNLIKELY(fh.IsPrimitiveType() != is_primitive || |
| 236 | fh.FieldSize() != expected_size)) { |
| 237 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 238 | DCHECK(throw_location.GetMethod() == referrer); |
| 239 | self->ThrowNewExceptionF(throw_location, "Ljava/lang/NoSuchFieldError;", |
| 240 | "Attempted read of %zd-bit %s on field '%s'", |
| 241 | expected_size * (32 / sizeof(int32_t)), |
| 242 | is_primitive ? "primitive" : "non-primitive", |
| 243 | PrettyField(resolved_field, true).c_str()); |
| 244 | return nullptr; // failure |
| 245 | } |
| 246 | } |
| 247 | } |
| 248 | if (!is_static) { |
| 249 | // instance fields must be being accessed on an initialized class |
| 250 | return resolved_field; |
| 251 | } else { |
| 252 | // If the class is initialized we're done. |
| 253 | if (LIKELY(fields_class->IsInitialized())) { |
| 254 | return resolved_field; |
| 255 | } else if (LIKELY(class_linker->EnsureInitialized(fields_class, true, true))) { |
| 256 | // Otherwise let's ensure the class is initialized before resolving the field. |
| 257 | return resolved_field; |
| 258 | } else { |
| 259 | DCHECK(self->IsExceptionPending()); // Throw exception and unwind |
| 260 | return nullptr; // failure |
| 261 | } |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | // Explicit template declarations of FindFieldFromCode for all field access types. |
| 266 | #define EXPLICIT_FIND_FIELD_FROM_CODE_TEMPLATE_DECL(_type, _access_check) \ |
| 267 | template SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) ALWAYS_INLINE \ |
| 268 | static mirror::ArtField* FindFieldFromCode<_type, _access_check>(uint32_t field_idx, \ |
| 269 | const mirror::ArtMethod* referrer, \ |
| 270 | Thread* self, size_t expected_size) \ |
| 271 | |
| 272 | #define EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(_type) \ |
| 273 | EXPLICIT_FIND_FIELD_FROM_CODE_TEMPLATE_DECL(_type, false); \ |
| 274 | EXPLICIT_FIND_FIELD_FROM_CODE_TEMPLATE_DECL(_type, true) |
| 275 | |
| 276 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(InstanceObjectRead); |
| 277 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(InstanceObjectWrite); |
| 278 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(InstancePrimitiveRead); |
| 279 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(InstancePrimitiveWrite); |
| 280 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(StaticObjectRead); |
| 281 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(StaticObjectWrite); |
| 282 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(StaticPrimitiveRead); |
| 283 | EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL(StaticPrimitiveWrite); |
| 284 | |
| 285 | #undef EXPLICIT_FIND_FIELD_FROM_CODE_TYPED_TEMPLATE_DECL |
| 286 | #undef EXPLICIT_FIND_FIELD_FROM_CODE_TEMPLATE_DECL |
| 287 | |
| 288 | template<InvokeType type, bool access_check> |
| 289 | static inline mirror::ArtMethod* FindMethodFromCode(uint32_t method_idx, mirror::Object* this_object, |
| 290 | mirror::ArtMethod* referrer, Thread* self) { |
| 291 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 292 | mirror::ArtMethod* resolved_method = class_linker->ResolveMethod(method_idx, referrer, type); |
| 293 | if (UNLIKELY(resolved_method == nullptr)) { |
| 294 | DCHECK(self->IsExceptionPending()); // Throw exception and unwind. |
| 295 | return nullptr; // Failure. |
| 296 | } else if (UNLIKELY(this_object == nullptr && type != kStatic)) { |
| 297 | // Maintain interpreter-like semantics where NullPointerException is thrown |
| 298 | // after potential NoSuchMethodError from class linker. |
| 299 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 300 | DCHECK(referrer == throw_location.GetMethod()); |
| 301 | ThrowNullPointerExceptionForMethodAccess(throw_location, method_idx, type); |
| 302 | return nullptr; // Failure. |
| 303 | } else if (access_check) { |
| 304 | // Incompatible class change should have been handled in resolve method. |
| 305 | if (UNLIKELY(resolved_method->CheckIncompatibleClassChange(type))) { |
| 306 | ThrowIncompatibleClassChangeError(type, resolved_method->GetInvokeType(), resolved_method, |
| 307 | referrer); |
| 308 | return nullptr; // Failure. |
| 309 | } |
| 310 | mirror::Class* methods_class = resolved_method->GetDeclaringClass(); |
| 311 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
| 312 | if (UNLIKELY(!referring_class->CanAccess(methods_class) || |
| 313 | !referring_class->CanAccessMember(methods_class, |
| 314 | resolved_method->GetAccessFlags()))) { |
| 315 | // The referring class can't access the resolved method, this may occur as a result of a |
| 316 | // protected method being made public by implementing an interface that re-declares the |
| 317 | // method public. Resort to the dex file to determine the correct class for the access check |
| 318 | const DexFile& dex_file = *referring_class->GetDexCache()->GetDexFile(); |
| 319 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 320 | methods_class = class_linker->ResolveType(dex_file, |
| 321 | dex_file.GetMethodId(method_idx).class_idx_, |
| 322 | referring_class); |
| 323 | if (UNLIKELY(!referring_class->CanAccess(methods_class))) { |
| 324 | ThrowIllegalAccessErrorClassForMethodDispatch(referring_class, methods_class, |
| 325 | referrer, resolved_method, type); |
| 326 | return nullptr; // Failure. |
| 327 | } else if (UNLIKELY(!referring_class->CanAccessMember(methods_class, |
| 328 | resolved_method->GetAccessFlags()))) { |
| 329 | ThrowIllegalAccessErrorMethod(referring_class, resolved_method); |
| 330 | return nullptr; // Failure. |
| 331 | } |
| 332 | } |
| 333 | } |
| 334 | switch (type) { |
| 335 | case kStatic: |
| 336 | case kDirect: |
| 337 | return resolved_method; |
| 338 | case kVirtual: { |
| 339 | mirror::ObjectArray<mirror::ArtMethod>* vtable = this_object->GetClass()->GetVTable(); |
| 340 | uint16_t vtable_index = resolved_method->GetMethodIndex(); |
| 341 | if (access_check && |
| 342 | (vtable == nullptr || vtable_index >= static_cast<uint32_t>(vtable->GetLength()))) { |
| 343 | // Behavior to agree with that of the verifier. |
| 344 | MethodHelper mh(resolved_method); |
| 345 | ThrowNoSuchMethodError(type, resolved_method->GetDeclaringClass(), mh.GetName(), |
| 346 | mh.GetSignature()); |
| 347 | return nullptr; // Failure. |
| 348 | } |
| 349 | DCHECK(vtable != nullptr); |
| 350 | return vtable->GetWithoutChecks(vtable_index); |
| 351 | } |
| 352 | case kSuper: { |
| 353 | mirror::Class* super_class = referrer->GetDeclaringClass()->GetSuperClass(); |
| 354 | uint16_t vtable_index = resolved_method->GetMethodIndex(); |
| 355 | mirror::ObjectArray<mirror::ArtMethod>* vtable; |
| 356 | if (access_check) { |
| 357 | // Check existence of super class. |
| 358 | vtable = (super_class != nullptr) ? super_class->GetVTable() : nullptr; |
| 359 | if (vtable == nullptr || vtable_index >= static_cast<uint32_t>(vtable->GetLength())) { |
| 360 | // Behavior to agree with that of the verifier. |
| 361 | MethodHelper mh(resolved_method); |
| 362 | ThrowNoSuchMethodError(type, resolved_method->GetDeclaringClass(), mh.GetName(), |
| 363 | mh.GetSignature()); |
| 364 | return nullptr; // Failure. |
| 365 | } |
| 366 | } else { |
| 367 | // Super class must exist. |
| 368 | DCHECK(super_class != nullptr); |
| 369 | vtable = super_class->GetVTable(); |
| 370 | } |
| 371 | DCHECK(vtable != nullptr); |
| 372 | return vtable->GetWithoutChecks(vtable_index); |
| 373 | } |
| 374 | case kInterface: { |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame^] | 375 | uint32_t imt_index = resolved_method->GetDexMethodIndex() % ClassLinker::kImtSize; |
| 376 | mirror::ObjectArray<mirror::ArtMethod>* imt_table = this_object->GetClass()->GetImTable(); |
| 377 | mirror::ArtMethod* imt_method = imt_table->Get(imt_index); |
| 378 | if (!imt_method->IsImtConflictMethod()) { |
| 379 | return imt_method; |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 380 | } else { |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame^] | 381 | mirror::ArtMethod* interface_method = |
| 382 | this_object->GetClass()->FindVirtualMethodForInterface(resolved_method); |
| 383 | if (UNLIKELY(interface_method == nullptr)) { |
| 384 | ThrowIncompatibleClassChangeErrorClassForInterfaceDispatch(resolved_method, this_object, |
| 385 | referrer); |
| 386 | return nullptr; // Failure. |
| 387 | } else { |
| 388 | return interface_method; |
| 389 | } |
Sebastien Hertz | d4beb6b | 2013-10-02 17:07:20 +0200 | [diff] [blame] | 390 | } |
| 391 | } |
| 392 | default: |
| 393 | LOG(FATAL) << "Unknown invoke type " << type; |
| 394 | return nullptr; // Failure. |
| 395 | } |
| 396 | } |
| 397 | |
| 398 | // Explicit template declarations of FindMethodFromCode for all invoke types. |
| 399 | #define EXPLICIT_FIND_METHOD_FROM_CODE_TEMPLATE_DECL(_type, _access_check) \ |
| 400 | template SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) ALWAYS_INLINE \ |
| 401 | static mirror::ArtMethod* FindMethodFromCode<_type, _access_check>(uint32_t method_idx, \ |
| 402 | mirror::Object* this_object, \ |
| 403 | mirror::ArtMethod* referrer, \ |
| 404 | Thread* self) |
| 405 | #define EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL(_type) \ |
| 406 | EXPLICIT_FIND_METHOD_FROM_CODE_TEMPLATE_DECL(_type, false); \ |
| 407 | EXPLICIT_FIND_METHOD_FROM_CODE_TEMPLATE_DECL(_type, true) |
| 408 | |
| 409 | EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL(kStatic); |
| 410 | EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL(kDirect); |
| 411 | EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL(kVirtual); |
| 412 | EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL(kSuper); |
| 413 | EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL(kInterface); |
| 414 | |
| 415 | #undef EXPLICIT_FIND_METHOD_FROM_CODE_TYPED_TEMPLATE_DECL |
| 416 | #undef EXPLICIT_FIND_METHOD_FROM_CODE_TEMPLATE_DECL |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 417 | |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 418 | // Fast path field resolution that can't initialize classes or throw exceptions. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 419 | static inline mirror::ArtField* FindFieldFast(uint32_t field_idx, |
| 420 | const mirror::ArtMethod* referrer, |
| 421 | FindFieldType type, size_t expected_size) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 422 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 423 | mirror::ArtField* resolved_field = |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 424 | referrer->GetDeclaringClass()->GetDexCache()->GetResolvedField(field_idx); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 425 | if (UNLIKELY(resolved_field == NULL)) { |
| 426 | return NULL; |
| 427 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 428 | mirror::Class* fields_class = resolved_field->GetDeclaringClass(); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 429 | // Check class is initiliazed or initializing. |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 430 | if (UNLIKELY(!fields_class->IsInitializing())) { |
| 431 | return NULL; |
| 432 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 433 | // Check for incompatible class change. |
| 434 | bool is_primitive; |
| 435 | bool is_set; |
| 436 | bool is_static; |
| 437 | switch (type) { |
| 438 | case InstanceObjectRead: is_primitive = false; is_set = false; is_static = false; break; |
| 439 | case InstanceObjectWrite: is_primitive = false; is_set = true; is_static = false; break; |
| 440 | case InstancePrimitiveRead: is_primitive = true; is_set = false; is_static = false; break; |
| 441 | case InstancePrimitiveWrite: is_primitive = true; is_set = true; is_static = false; break; |
| 442 | case StaticObjectRead: is_primitive = false; is_set = false; is_static = true; break; |
| 443 | case StaticObjectWrite: is_primitive = false; is_set = true; is_static = true; break; |
| 444 | case StaticPrimitiveRead: is_primitive = true; is_set = false; is_static = true; break; |
| 445 | case StaticPrimitiveWrite: is_primitive = true; is_set = true; is_static = true; break; |
Brian Carlstrom | f69863b | 2013-07-17 21:53:13 -0700 | [diff] [blame] | 446 | default: |
| 447 | LOG(FATAL) << "UNREACHABLE"; // Assignment below to avoid GCC warnings. |
| 448 | is_primitive = true; |
| 449 | is_set = true; |
| 450 | is_static = true; |
| 451 | break; |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 452 | } |
| 453 | if (UNLIKELY(resolved_field->IsStatic() != is_static)) { |
| 454 | // Incompatible class change. |
| 455 | return NULL; |
| 456 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 457 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 458 | if (UNLIKELY(!referring_class->CanAccess(fields_class) || |
| 459 | !referring_class->CanAccessMember(fields_class, |
| 460 | resolved_field->GetAccessFlags()) || |
| 461 | (is_set && resolved_field->IsFinal() && (fields_class != referring_class)))) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 462 | // Illegal access. |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 463 | return NULL; |
| 464 | } |
| 465 | FieldHelper fh(resolved_field); |
| 466 | if (UNLIKELY(fh.IsPrimitiveType() != is_primitive || |
| 467 | fh.FieldSize() != expected_size)) { |
| 468 | return NULL; |
| 469 | } |
| 470 | return resolved_field; |
| 471 | } |
| 472 | |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 473 | // Fast path method resolution that can't throw exceptions. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 474 | static inline mirror::ArtMethod* FindMethodFast(uint32_t method_idx, |
| 475 | mirror::Object* this_object, |
| 476 | const mirror::ArtMethod* referrer, |
| 477 | bool access_check, InvokeType type) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 478 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 479 | bool is_direct = type == kStatic || type == kDirect; |
| 480 | if (UNLIKELY(this_object == NULL && !is_direct)) { |
| 481 | return NULL; |
| 482 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 483 | mirror::ArtMethod* resolved_method = |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 484 | referrer->GetDeclaringClass()->GetDexCache()->GetResolvedMethod(method_idx); |
| 485 | if (UNLIKELY(resolved_method == NULL)) { |
| 486 | return NULL; |
| 487 | } |
| 488 | if (access_check) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 489 | // Check for incompatible class change errors and access. |
| 490 | bool icce = resolved_method->CheckIncompatibleClassChange(type); |
| 491 | if (UNLIKELY(icce)) { |
| 492 | return NULL; |
| 493 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 494 | mirror::Class* methods_class = resolved_method->GetDeclaringClass(); |
| 495 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 496 | if (UNLIKELY(!referring_class->CanAccess(methods_class) || |
| 497 | !referring_class->CanAccessMember(methods_class, |
| 498 | resolved_method->GetAccessFlags()))) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 499 | // Potential illegal access, may need to refine the method's class. |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 500 | return NULL; |
| 501 | } |
| 502 | } |
| 503 | if (type == kInterface) { // Most common form of slow path dispatch. |
| 504 | return this_object->GetClass()->FindVirtualMethodForInterface(resolved_method); |
| 505 | } else if (is_direct) { |
| 506 | return resolved_method; |
| 507 | } else if (type == kSuper) { |
| 508 | return referrer->GetDeclaringClass()->GetSuperClass()->GetVTable()-> |
| 509 | Get(resolved_method->GetMethodIndex()); |
| 510 | } else { |
| 511 | DCHECK(type == kVirtual); |
| 512 | return this_object->GetClass()->GetVTable()->Get(resolved_method->GetMethodIndex()); |
| 513 | } |
| 514 | } |
| 515 | |
Ian Rogers | fa46d3e | 2013-05-15 00:16:04 -0700 | [diff] [blame] | 516 | static inline mirror::Class* ResolveVerifyAndClinit(uint32_t type_idx, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 517 | const mirror::ArtMethod* referrer, |
Ian Rogers | fa46d3e | 2013-05-15 00:16:04 -0700 | [diff] [blame] | 518 | Thread* self, bool can_run_clinit, |
| 519 | bool verify_access) |
| 520 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 521 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 522 | mirror::Class* klass = class_linker->ResolveType(type_idx, referrer); |
| 523 | if (UNLIKELY(klass == NULL)) { |
| 524 | CHECK(self->IsExceptionPending()); |
| 525 | return NULL; // Failure - Indicate to caller to deliver exception |
| 526 | } |
| 527 | // Perform access check if necessary. |
| 528 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
| 529 | if (verify_access && UNLIKELY(!referring_class->CanAccess(klass))) { |
| 530 | ThrowIllegalAccessErrorClass(referring_class, klass); |
| 531 | return NULL; // Failure - Indicate to caller to deliver exception |
| 532 | } |
| 533 | // If we're just implementing const-class, we shouldn't call <clinit>. |
| 534 | if (!can_run_clinit) { |
| 535 | return klass; |
| 536 | } |
| 537 | // If we are the <clinit> of this class, just return our storage. |
| 538 | // |
| 539 | // Do not set the DexCache InitializedStaticStorage, since that implies <clinit> has finished |
| 540 | // running. |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 541 | if (klass == referring_class && referrer->IsConstructor() && referrer->IsStatic()) { |
Ian Rogers | fa46d3e | 2013-05-15 00:16:04 -0700 | [diff] [blame] | 542 | return klass; |
| 543 | } |
| 544 | if (!class_linker->EnsureInitialized(klass, true, true)) { |
| 545 | CHECK(self->IsExceptionPending()); |
| 546 | return NULL; // Failure - Indicate to caller to deliver exception |
| 547 | } |
| 548 | referrer->GetDexCacheInitializedStaticStorage()->Set(type_idx, klass); |
| 549 | return klass; |
| 550 | } |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 551 | |
jeffhao | d752132 | 2012-11-21 15:38:24 -0800 | [diff] [blame] | 552 | extern void ThrowStackOverflowError(Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 553 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 554 | static inline mirror::String* ResolveStringFromCode(const mirror::ArtMethod* referrer, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 555 | uint32_t string_idx) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 556 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 557 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 558 | return class_linker->ResolveString(string_idx, referrer); |
| 559 | } |
Shih-wei Liao | 2d83101 | 2011-09-28 22:06:53 -0700 | [diff] [blame] | 560 | |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 561 | static inline void UnlockJniSynchronizedMethod(jobject locked, Thread* self) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 562 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 563 | UNLOCK_FUNCTION(monitor_lock_) { |
| 564 | // Save any pending exception over monitor exit call. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 565 | mirror::Throwable* saved_exception = NULL; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 566 | ThrowLocation saved_throw_location; |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 567 | if (UNLIKELY(self->IsExceptionPending())) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 568 | saved_exception = self->GetException(&saved_throw_location); |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 569 | self->ClearException(); |
| 570 | } |
| 571 | // Decode locked object and unlock, before popping local references. |
| 572 | self->DecodeJObject(locked)->MonitorExit(self); |
| 573 | if (UNLIKELY(self->IsExceptionPending())) { |
| 574 | LOG(FATAL) << "Synchronized JNI code returning with an exception:\n" |
| 575 | << saved_exception->Dump() |
| 576 | << "\nEncountered second exception during implicit MonitorExit:\n" |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 577 | << self->GetException(NULL)->Dump(); |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 578 | } |
| 579 | // Restore pending exception. |
| 580 | if (saved_exception != NULL) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 581 | self->SetException(saved_throw_location, saved_exception); |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 582 | } |
| 583 | } |
| 584 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 585 | static inline void CheckReferenceResult(mirror::Object* o, Thread* self) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 586 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 587 | if (o == NULL) { |
| 588 | return; |
| 589 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 590 | mirror::ArtMethod* m = self->GetCurrentMethod(NULL); |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 591 | if (o == kInvalidIndirectRefObject) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 592 | JniAbortF(NULL, "invalid reference returned from %s", PrettyMethod(m).c_str()); |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 593 | } |
| 594 | // 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] | 595 | mirror::Class* return_type = MethodHelper(m).GetReturnType(); |
TDYa127 | 3d71d80 | 2012-08-15 03:47:03 -0700 | [diff] [blame] | 596 | |
| 597 | if (!o->InstanceOf(return_type)) { |
| 598 | JniAbortF(NULL, "attempt to return an instance of %s from %s", |
| 599 | PrettyTypeOf(o).c_str(), PrettyMethod(m).c_str()); |
| 600 | } |
| 601 | } |
| 602 | |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 603 | static inline void CheckSuspend(Thread* thread) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
jeffhao | 373c52f | 2012-11-20 16:11:52 -0800 | [diff] [blame] | 604 | for (;;) { |
| 605 | if (thread->ReadFlag(kCheckpointRequest)) { |
| 606 | thread->RunCheckpointFunction(); |
jeffhao | 373c52f | 2012-11-20 16:11:52 -0800 | [diff] [blame] | 607 | } else if (thread->ReadFlag(kSuspendRequest)) { |
| 608 | thread->FullSuspendCheck(); |
| 609 | } else { |
| 610 | break; |
| 611 | } |
| 612 | } |
| 613 | } |
| 614 | |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 615 | JValue InvokeProxyInvocationHandler(ScopedObjectAccessUnchecked& soa, const char* shorty, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 616 | jobject rcvr_jobj, jobject interface_art_method_jobj, |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 617 | std::vector<jvalue>& args) |
Brian Carlstrom | 02c8cc6 | 2013-07-18 15:54:44 -0700 | [diff] [blame] | 618 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | af6e67a | 2013-01-16 08:38:37 -0800 | [diff] [blame] | 619 | |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 620 | // Entry point for deoptimization. |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 621 | extern "C" void art_quick_deoptimize(); |
| 622 | static inline uintptr_t GetQuickDeoptimizationEntryPoint() { |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 623 | return reinterpret_cast<uintptr_t>(art_quick_deoptimize); |
| 624 | } |
| 625 | |
| 626 | // Return address of instrumentation stub. |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 627 | extern "C" void art_quick_instrumentation_entry(void*); |
| 628 | static inline void* GetQuickInstrumentationEntryPoint() { |
| 629 | return reinterpret_cast<void*>(art_quick_instrumentation_entry); |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 630 | } |
| 631 | |
| 632 | // The return_pc of instrumentation exit stub. |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 633 | extern "C" void art_quick_instrumentation_exit(); |
| 634 | static inline uintptr_t GetQuickInstrumentationExitPc() { |
| 635 | return reinterpret_cast<uintptr_t>(art_quick_instrumentation_exit); |
| 636 | } |
| 637 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 638 | extern "C" void art_portable_to_interpreter_bridge(mirror::ArtMethod*); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 639 | static inline const void* GetPortableToInterpreterBridge() { |
| 640 | return reinterpret_cast<void*>(art_portable_to_interpreter_bridge); |
| 641 | } |
| 642 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 643 | extern "C" void art_quick_to_interpreter_bridge(mirror::ArtMethod*); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 644 | static inline const void* GetQuickToInterpreterBridge() { |
| 645 | return reinterpret_cast<void*>(art_quick_to_interpreter_bridge); |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 646 | } |
| 647 | |
| 648 | // Return address of interpreter stub. |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 649 | static inline const void* GetCompiledCodeToInterpreterBridge() { |
| 650 | #if defined(ART_USE_PORTABLE_COMPILER) |
| 651 | return GetPortableToInterpreterBridge(); |
| 652 | #else |
| 653 | return GetQuickToInterpreterBridge(); |
| 654 | #endif |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 655 | } |
| 656 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 657 | |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 658 | static inline const void* GetPortableResolutionTrampoline(ClassLinker* class_linker) { |
| 659 | return class_linker->GetPortableResolutionTrampoline(); |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 660 | } |
| 661 | |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 662 | static inline const void* GetQuickResolutionTrampoline(ClassLinker* class_linker) { |
| 663 | return class_linker->GetQuickResolutionTrampoline(); |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 664 | } |
| 665 | |
| 666 | // Return address of resolution trampoline stub for defined compiler. |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 667 | static inline const void* GetResolutionTrampoline(ClassLinker* class_linker) { |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 668 | #if defined(ART_USE_PORTABLE_COMPILER) |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 669 | return GetPortableResolutionTrampoline(class_linker); |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 670 | #else |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 671 | return GetQuickResolutionTrampoline(class_linker); |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 672 | #endif |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 673 | } |
| 674 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame^] | 675 | static inline const void* GetPortableImtConflictTrampoline(ClassLinker* class_linker) { |
| 676 | return class_linker->GetPortableImtConflictTrampoline(); |
| 677 | } |
| 678 | |
| 679 | static inline const void* GetQuickImtConflictTrampoline(ClassLinker* class_linker) { |
| 680 | return class_linker->GetQuickImtConflictTrampoline(); |
| 681 | } |
| 682 | |
| 683 | // Return address of imt conflict trampoline stub for defined compiler. |
| 684 | static inline const void* GetImtConflictTrampoline(ClassLinker* class_linker) { |
| 685 | #if defined(ART_USE_PORTABLE_COMPILER) |
| 686 | return GetPortableImtConflictTrampoline(class_linker); |
| 687 | #else |
| 688 | return GetQuickImtConflictTrampoline(class_linker); |
| 689 | #endif |
| 690 | } |
| 691 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 692 | extern "C" void art_portable_proxy_invoke_handler(); |
| 693 | static inline const void* GetPortableProxyInvokeHandler() { |
| 694 | return reinterpret_cast<void*>(art_portable_proxy_invoke_handler); |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 695 | } |
| 696 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 697 | extern "C" void art_quick_proxy_invoke_handler(); |
| 698 | static inline const void* GetQuickProxyInvokeHandler() { |
| 699 | return reinterpret_cast<void*>(art_quick_proxy_invoke_handler); |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 700 | } |
| 701 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 702 | static inline const void* GetProxyInvokeHandler() { |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 703 | #if defined(ART_USE_PORTABLE_COMPILER) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 704 | return GetPortableProxyInvokeHandler(); |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 705 | #else |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 706 | return GetQuickProxyInvokeHandler(); |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 707 | #endif |
| 708 | } |
| 709 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 710 | extern "C" void* art_jni_dlsym_lookup_stub(JNIEnv*, jobject); |
Jeff Hao | 79fe539 | 2013-04-24 18:41:58 -0700 | [diff] [blame] | 711 | static inline void* GetJniDlsymLookupStub() { |
| 712 | return reinterpret_cast<void*>(art_jni_dlsym_lookup_stub); |
| 713 | } |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 714 | |
Ian Rogers | 450dcb5 | 2013-09-20 17:36:02 -0700 | [diff] [blame] | 715 | template <typename INT_TYPE, typename FLOAT_TYPE> |
| 716 | static inline INT_TYPE art_float_to_integral(FLOAT_TYPE f) { |
| 717 | const INT_TYPE kMaxInt = static_cast<INT_TYPE>(std::numeric_limits<INT_TYPE>::max()); |
| 718 | const INT_TYPE kMinInt = static_cast<INT_TYPE>(std::numeric_limits<INT_TYPE>::min()); |
| 719 | const FLOAT_TYPE kMaxIntAsFloat = static_cast<FLOAT_TYPE>(kMaxInt); |
| 720 | const FLOAT_TYPE kMinIntAsFloat = static_cast<FLOAT_TYPE>(kMinInt); |
| 721 | if (LIKELY(f > kMinIntAsFloat)) { |
| 722 | if (LIKELY(f < kMaxIntAsFloat)) { |
| 723 | return static_cast<INT_TYPE>(f); |
| 724 | } else { |
| 725 | return kMaxInt; |
| 726 | } |
| 727 | } else { |
| 728 | return (f != f) ? 0 : kMinInt; // f != f implies NaN |
| 729 | } |
| 730 | } |
| 731 | |
Shih-wei Liao | 2d83101 | 2011-09-28 22:06:53 -0700 | [diff] [blame] | 732 | } // namespace art |
Ian Rogers | ad42e13 | 2011-09-17 20:23:33 -0700 | [diff] [blame] | 733 | |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 734 | #endif // ART_RUNTIME_ENTRYPOINTS_ENTRYPOINT_UTILS_H_ |