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