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      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  */
     16 
     17 #include "callee_save_frame.h"
     18 #include "entrypoints/entrypoint_utils-inl.h"
     19 #include "class_linker-inl.h"
     20 #include "dex_file-inl.h"
     21 #include "gc/accounting/card_table-inl.h"
     22 #include "mirror/art_method-inl.h"
     23 #include "mirror/object_array-inl.h"
     24 #include "mirror/object-inl.h"
     25 
     26 namespace art {
     27 
     28 extern "C" mirror::Class* artInitializeStaticStorageFromCode(uint32_t type_idx,
     29                                                              mirror::ArtMethod* referrer,
     30                                                              Thread* self,
     31                                                              StackReference<mirror::ArtMethod>* sp)
     32     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     33   // Called to ensure static storage base is initialized for direct static field reads and writes.
     34   // A class may be accessing another class' fields when it doesn't have access, as access has been
     35   // given by inheritance.
     36   FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly);
     37   return ResolveVerifyAndClinit(type_idx, referrer, self, true, false);
     38 }
     39 
     40 extern "C" mirror::Class* artInitializeTypeFromCode(uint32_t type_idx,
     41                                                     mirror::ArtMethod* referrer,
     42                                                     Thread* self,
     43                                                     StackReference<mirror::ArtMethod>* sp)
     44     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     45   // Called when method->dex_cache_resolved_types_[] misses.
     46   FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly);
     47   return ResolveVerifyAndClinit(type_idx, referrer, self, false, false);
     48 }
     49 
     50 extern "C" mirror::Class* artInitializeTypeAndVerifyAccessFromCode(uint32_t type_idx,
     51     mirror::ArtMethod* referrer,
     52     Thread* self,
     53     StackReference<mirror::ArtMethod>* sp) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     54   // Called when caller isn't guaranteed to have access to a type and the dex cache may be
     55   // unpopulated.
     56   FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly);
     57   return ResolveVerifyAndClinit(type_idx, referrer, self, false, true);
     58 }
     59 
     60 extern "C" mirror::String* artResolveStringFromCode(mirror::ArtMethod* referrer,
     61                                                     int32_t string_idx,
     62                                                     Thread* self,
     63                                                     StackReference<mirror::ArtMethod>* sp)
     64     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     65   FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly);
     66   return ResolveStringFromCode(referrer, string_idx);
     67 }
     68 
     69 }  // namespace art
     70