1 /* 2 * Copyright (C) 2015 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_UNSTARTED_RUNTIME_H_ 18 #define ART_RUNTIME_INTERPRETER_UNSTARTED_RUNTIME_H_ 19 20 #include "interpreter.h" 21 22 #include "base/macros.h" 23 #include "dex/dex_file.h" 24 #include "jvalue.h" 25 #include "unstarted_runtime_list.h" 26 27 namespace art HIDDEN { 28 29 class ArtMethod; 30 class CodeItemDataAccessor; 31 class Thread; 32 class ShadowFrame; 33 34 namespace mirror { 35 class Object; 36 } // namespace mirror 37 38 namespace interpreter { 39 40 // Support for an unstarted runtime. These are special handwritten implementations for select 41 // libcore native and non-native methods so we can compile-time initialize classes in the boot 42 // image. 43 // 44 // While it would technically be OK to only expose the public functions, a class was chosen to 45 // wrap this so the actual implementations are exposed for testing. This is also why the private 46 // methods are not documented here - they are not intended to be used directly except in 47 // testing. 48 49 class UnstartedRuntime { 50 public: 51 EXPORT static void Initialize(); 52 53 // For testing. When we destroy the Runtime and create a new one, 54 // we need to reinitialize maps with new `ArtMethod*` keys. 55 static void Reinitialize(); 56 57 static void Invoke(Thread* self, 58 const CodeItemDataAccessor& accessor, 59 ShadowFrame* shadow_frame, 60 JValue* result, 61 size_t arg_offset) 62 REQUIRES_SHARED(Locks::mutator_lock_); 63 64 static void Jni(Thread* self, 65 ArtMethod* method, 66 mirror::Object* receiver, 67 uint32_t* args, 68 JValue* result) 69 REQUIRES_SHARED(Locks::mutator_lock_); 70 71 private: 72 // Methods that intercept available libcore implementations. 73 #define UNSTARTED_DIRECT(ShortName, DescriptorIgnored, NameIgnored, SignatureIgnored) \ 74 static void Unstarted ## ShortName(Thread* self, \ 75 ShadowFrame* shadow_frame, \ 76 JValue* result, \ 77 size_t arg_offset) \ 78 REQUIRES_SHARED(Locks::mutator_lock_); 79 UNSTARTED_RUNTIME_DIRECT_LIST(UNSTARTED_DIRECT) 80 #undef UNSTARTED_DIRECT 81 82 // Methods that are native. 83 #define UNSTARTED_JNI(ShortName, DescriptorIgnored, NameIgnored, SignatureIgnored) \ 84 static void UnstartedJNI ## ShortName(Thread* self, \ 85 ArtMethod* method, \ 86 mirror::Object* receiver, \ 87 uint32_t* args, \ 88 JValue* result) \ 89 REQUIRES_SHARED(Locks::mutator_lock_); 90 UNSTARTED_RUNTIME_JNI_LIST(UNSTARTED_JNI) 91 #undef UNSTARTED_JNI 92 93 static void UnstartedClassForNameCommon(Thread* self, 94 ShadowFrame* shadow_frame, 95 JValue* result, 96 size_t arg_offset, 97 bool long_form) REQUIRES_SHARED(Locks::mutator_lock_); 98 99 static void InitializeInvokeHandlers(Thread* self) REQUIRES_SHARED(Locks::mutator_lock_); 100 static void InitializeJNIHandlers(Thread* self) REQUIRES_SHARED(Locks::mutator_lock_); 101 102 friend class UnstartedRuntimeTestBase; 103 104 DISALLOW_ALLOCATION(); 105 DISALLOW_COPY_AND_ASSIGN(UnstartedRuntime); 106 }; 107 108 } // namespace interpreter 109 } // namespace art 110 111 #endif // ART_RUNTIME_INTERPRETER_UNSTARTED_RUNTIME_H_ 112