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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 "art_method-inl.h"
     18 #include "class_linker.h"
     19 #include "dex_file-inl.h"
     20 #include "interpreter/interpreter.h"
     21 #include "mirror/object-inl.h"
     22 #include "reflection.h"
     23 #include "runtime.h"
     24 #include "stack.h"
     25 
     26 namespace art {
     27 
     28 extern "C" void artInterpreterToCompiledCodeBridge(Thread* self, const DexFile::CodeItem* code_item,
     29                                                    ShadowFrame* shadow_frame, JValue* result) {
     30   ArtMethod* method = shadow_frame->GetMethod();
     31   // Ensure static methods are initialized.
     32   if (method->IsStatic()) {
     33     mirror::Class* declaringClass = method->GetDeclaringClass();
     34     if (UNLIKELY(!declaringClass->IsInitialized())) {
     35       self->PushShadowFrame(shadow_frame);
     36       StackHandleScope<1> hs(self);
     37       Handle<mirror::Class> h_class(hs.NewHandle(declaringClass));
     38       if (UNLIKELY(!Runtime::Current()->GetClassLinker()->EnsureInitialized(self, h_class, true,
     39                                                                             true))) {
     40         self->PopShadowFrame();
     41         DCHECK(self->IsExceptionPending());
     42         return;
     43       }
     44       self->PopShadowFrame();
     45       CHECK(h_class->IsInitializing());
     46       // Reload from shadow frame in case the method moved, this is faster than adding a handle.
     47       method = shadow_frame->GetMethod();
     48     }
     49   }
     50   uint16_t arg_offset = (code_item == nullptr) ? 0 : code_item->registers_size_ - code_item->ins_size_;
     51   method->Invoke(self, shadow_frame->GetVRegArgs(arg_offset),
     52                  (shadow_frame->NumberOfVRegs() - arg_offset) * sizeof(uint32_t),
     53                  result, method->GetInterfaceMethodIfProxy(sizeof(void*))->GetShorty());
     54 }
     55 
     56 }  // namespace art
     57