1 /* 2 * Copyright (C) 2016 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_MIRROR_EXECUTABLE_H_ 18 #define ART_RUNTIME_MIRROR_EXECUTABLE_H_ 19 20 #include "accessible_object.h" 21 #include "object.h" 22 #include "read_barrier_option.h" 23 24 namespace art { 25 26 struct ExecutableOffsets; 27 class ArtMethod; 28 29 namespace mirror { 30 31 // C++ mirror of java.lang.reflect.Executable. 32 class MANAGED Executable : public AccessibleObject { 33 public: 34 // Called from Constructor::CreateFromArtMethod, Method::CreateFromArtMethod. 35 template <PointerSize kPointerSize, bool kTransactionActive> 36 bool CreateFromArtMethod(ArtMethod* method) REQUIRES_SHARED(Locks::mutator_lock_) 37 REQUIRES(!Roles::uninterruptible_); 38 39 template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags> GetArtMethod()40 ArtMethod* GetArtMethod() REQUIRES_SHARED(Locks::mutator_lock_) { 41 return reinterpret_cast64<ArtMethod*>(GetField64<kVerifyFlags>(ArtMethodOffset())); 42 } 43 44 template <bool kTransactionActive = false, 45 bool kCheckTransaction = true, 46 VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags> 47 void SetArtMethod(ArtMethod* method) REQUIRES_SHARED(Locks::mutator_lock_); 48 49 ObjPtr<mirror::Class> GetDeclaringClass() REQUIRES_SHARED(Locks::mutator_lock_); 50 ArtMethodOffset()51 static MemberOffset ArtMethodOffset() { 52 return MemberOffset(OFFSETOF_MEMBER(Executable, art_method_)); 53 } 54 55 private: 56 uint16_t has_real_parameter_data_; 57 HeapReference<mirror::Class> declaring_class_; 58 HeapReference<mirror::Class> declaring_class_of_overridden_method_; 59 HeapReference<mirror::Array> parameters_; 60 uint64_t art_method_; 61 uint32_t access_flags_; 62 uint32_t dex_method_index_; 63 DeclaringClassOffset()64 static MemberOffset DeclaringClassOffset() { 65 return MemberOffset(OFFSETOF_MEMBER(Executable, declaring_class_)); 66 } DeclaringClassOfOverriddenMethodOffset()67 static MemberOffset DeclaringClassOfOverriddenMethodOffset() { 68 return MemberOffset(OFFSETOF_MEMBER(Executable, declaring_class_of_overridden_method_)); 69 } AccessFlagsOffset()70 static MemberOffset AccessFlagsOffset() { 71 return MemberOffset(OFFSETOF_MEMBER(Executable, access_flags_)); 72 } DexMethodIndexOffset()73 static MemberOffset DexMethodIndexOffset() { 74 return MemberOffset(OFFSETOF_MEMBER(Executable, dex_method_index_)); 75 } 76 77 friend struct art::ExecutableOffsets; // for verifying offset information 78 DISALLOW_IMPLICIT_CONSTRUCTORS(Executable); 79 }; 80 81 } // namespace mirror 82 } // namespace art 83 84 #endif // ART_RUNTIME_MIRROR_EXECUTABLE_H_ 85