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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 #ifndef ART_RUNTIME_INTERPRETER_INTERPRETER_H_
     18 #define ART_RUNTIME_INTERPRETER_INTERPRETER_H_
     19 
     20 #include "base/mutex.h"
     21 #include "dex_file.h"
     22 #include "obj_ptr.h"
     23 
     24 namespace art {
     25 namespace mirror {
     26 class Object;
     27 }  // namespace mirror
     28 
     29 class ArtMethod;
     30 union JValue;
     31 class ShadowFrame;
     32 class Thread;
     33 
     34 namespace interpreter {
     35 
     36 // Called by ArtMethod::Invoke, shadow frames arguments are taken from the args array.
     37 // The optional stay_in_interpreter parameter (false by default) can be used by clients to
     38 // explicitly force interpretation in the remaining path that implements method invocation.
     39 extern void EnterInterpreterFromInvoke(Thread* self, ArtMethod* method,
     40                                        ObjPtr<mirror::Object> receiver,
     41                                        uint32_t* args,
     42                                        JValue* result,
     43                                        bool stay_in_interpreter = false)
     44     REQUIRES_SHARED(Locks::mutator_lock_);
     45 
     46 // 'from_code' denotes whether the deoptimization was explicitly triggered by compiled code.
     47 extern void EnterInterpreterFromDeoptimize(Thread* self, ShadowFrame* shadow_frame, bool from_code,
     48                                            JValue* ret_val)
     49     REQUIRES_SHARED(Locks::mutator_lock_);
     50 
     51 extern JValue EnterInterpreterFromEntryPoint(Thread* self, const DexFile::CodeItem* code_item,
     52                                              ShadowFrame* shadow_frame)
     53     REQUIRES_SHARED(Locks::mutator_lock_);
     54 
     55 void ArtInterpreterToInterpreterBridge(Thread* self, const DexFile::CodeItem* code_item,
     56                                        ShadowFrame* shadow_frame, JValue* result)
     57     REQUIRES_SHARED(Locks::mutator_lock_);
     58 
     59 // One-time sanity check.
     60 void CheckInterpreterAsmConstants();
     61 
     62 void InitInterpreterTls(Thread* self);
     63 
     64 }  // namespace interpreter
     65 
     66 }  // namespace art
     67 
     68 #endif  // ART_RUNTIME_INTERPRETER_INTERPRETER_H_
     69