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 "well_known_classes.h" 18 19 #include <stdlib.h> 20 21 #include "base/logging.h" 22 #include "mirror/class.h" 23 #include "ScopedLocalRef.h" 24 #include "thread-inl.h" 25 26 namespace art { 27 28 jclass WellKnownClasses::com_android_dex_Dex; 29 jclass WellKnownClasses::dalvik_system_DexFile; 30 jclass WellKnownClasses::dalvik_system_DexPathList; 31 jclass WellKnownClasses::dalvik_system_DexPathList$Element; 32 jclass WellKnownClasses::dalvik_system_PathClassLoader; 33 jclass WellKnownClasses::java_lang_BootClassLoader; 34 jclass WellKnownClasses::java_lang_ClassLoader; 35 jclass WellKnownClasses::java_lang_ClassNotFoundException; 36 jclass WellKnownClasses::java_lang_Daemons; 37 jclass WellKnownClasses::java_lang_Error; 38 jclass WellKnownClasses::java_lang_Object; 39 jclass WellKnownClasses::java_lang_reflect_AbstractMethod; 40 jclass WellKnownClasses::java_lang_reflect_ArtMethod; 41 jclass WellKnownClasses::java_lang_reflect_Constructor; 42 jclass WellKnownClasses::java_lang_reflect_Field; 43 jclass WellKnownClasses::java_lang_reflect_Method; 44 jclass WellKnownClasses::java_lang_reflect_Proxy; 45 jclass WellKnownClasses::java_lang_RuntimeException; 46 jclass WellKnownClasses::java_lang_StackOverflowError; 47 jclass WellKnownClasses::java_lang_String; 48 jclass WellKnownClasses::java_lang_System; 49 jclass WellKnownClasses::java_lang_Thread; 50 jclass WellKnownClasses::java_lang_Thread$UncaughtExceptionHandler; 51 jclass WellKnownClasses::java_lang_ThreadGroup; 52 jclass WellKnownClasses::java_lang_Throwable; 53 jclass WellKnownClasses::java_nio_DirectByteBuffer; 54 jclass WellKnownClasses::java_util_Collections; 55 jclass WellKnownClasses::libcore_util_EmptyArray; 56 jclass WellKnownClasses::org_apache_harmony_dalvik_ddmc_Chunk; 57 jclass WellKnownClasses::org_apache_harmony_dalvik_ddmc_DdmServer; 58 59 jmethodID WellKnownClasses::com_android_dex_Dex_create; 60 jmethodID WellKnownClasses::java_lang_Boolean_valueOf; 61 jmethodID WellKnownClasses::java_lang_Byte_valueOf; 62 jmethodID WellKnownClasses::java_lang_Character_valueOf; 63 jmethodID WellKnownClasses::java_lang_ClassLoader_loadClass; 64 jmethodID WellKnownClasses::java_lang_ClassNotFoundException_init; 65 jmethodID WellKnownClasses::java_lang_Daemons_requestGC; 66 jmethodID WellKnownClasses::java_lang_Daemons_requestHeapTrim; 67 jmethodID WellKnownClasses::java_lang_Daemons_start; 68 jmethodID WellKnownClasses::java_lang_Double_valueOf; 69 jmethodID WellKnownClasses::java_lang_Float_valueOf; 70 jmethodID WellKnownClasses::java_lang_Integer_valueOf; 71 jmethodID WellKnownClasses::java_lang_Long_valueOf; 72 jmethodID WellKnownClasses::java_lang_ref_FinalizerReference_add; 73 jmethodID WellKnownClasses::java_lang_ref_ReferenceQueue_add; 74 jmethodID WellKnownClasses::java_lang_reflect_Proxy_invoke; 75 jmethodID WellKnownClasses::java_lang_Runtime_nativeLoad; 76 jmethodID WellKnownClasses::java_lang_Short_valueOf; 77 jmethodID WellKnownClasses::java_lang_System_runFinalization = NULL; 78 jmethodID WellKnownClasses::java_lang_Thread_init; 79 jmethodID WellKnownClasses::java_lang_Thread_run; 80 jmethodID WellKnownClasses::java_lang_Thread$UncaughtExceptionHandler_uncaughtException; 81 jmethodID WellKnownClasses::java_lang_ThreadGroup_removeThread; 82 jmethodID WellKnownClasses::java_nio_DirectByteBuffer_init; 83 jmethodID WellKnownClasses::org_apache_harmony_dalvik_ddmc_DdmServer_broadcast; 84 jmethodID WellKnownClasses::org_apache_harmony_dalvik_ddmc_DdmServer_dispatch; 85 86 jfieldID WellKnownClasses::dalvik_system_DexFile_cookie; 87 jfieldID WellKnownClasses::dalvik_system_PathClassLoader_pathList; 88 jfieldID WellKnownClasses::dalvik_system_DexPathList_dexElements; 89 jfieldID WellKnownClasses::dalvik_system_DexPathList$Element_dexFile; 90 jfieldID WellKnownClasses::java_lang_Thread_daemon; 91 jfieldID WellKnownClasses::java_lang_Thread_group; 92 jfieldID WellKnownClasses::java_lang_Thread_lock; 93 jfieldID WellKnownClasses::java_lang_Thread_name; 94 jfieldID WellKnownClasses::java_lang_Thread_priority; 95 jfieldID WellKnownClasses::java_lang_Thread_uncaughtHandler; 96 jfieldID WellKnownClasses::java_lang_Thread_nativePeer; 97 jfieldID WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup; 98 jfieldID WellKnownClasses::java_lang_ThreadGroup_name; 99 jfieldID WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup; 100 jfieldID WellKnownClasses::java_lang_Throwable_cause; 101 jfieldID WellKnownClasses::java_lang_Throwable_detailMessage; 102 jfieldID WellKnownClasses::java_lang_Throwable_stackTrace; 103 jfieldID WellKnownClasses::java_lang_Throwable_stackState; 104 jfieldID WellKnownClasses::java_lang_Throwable_suppressedExceptions; 105 jfieldID WellKnownClasses::java_lang_reflect_AbstractMethod_artMethod; 106 jfieldID WellKnownClasses::java_lang_reflect_Field_artField; 107 jfieldID WellKnownClasses::java_lang_reflect_Proxy_h; 108 jfieldID WellKnownClasses::java_nio_DirectByteBuffer_capacity; 109 jfieldID WellKnownClasses::java_nio_DirectByteBuffer_effectiveDirectAddress; 110 jfieldID WellKnownClasses::java_util_Collections_EMPTY_LIST; 111 jfieldID WellKnownClasses::libcore_util_EmptyArray_STACK_TRACE_ELEMENT; 112 jfieldID WellKnownClasses::org_apache_harmony_dalvik_ddmc_Chunk_data; 113 jfieldID WellKnownClasses::org_apache_harmony_dalvik_ddmc_Chunk_length; 114 jfieldID WellKnownClasses::org_apache_harmony_dalvik_ddmc_Chunk_offset; 115 jfieldID WellKnownClasses::org_apache_harmony_dalvik_ddmc_Chunk_type; 116 117 static jclass CacheClass(JNIEnv* env, const char* jni_class_name) { 118 ScopedLocalRef<jclass> c(env, env->FindClass(jni_class_name)); 119 if (c.get() == NULL) { 120 LOG(FATAL) << "Couldn't find class: " << jni_class_name; 121 } 122 return reinterpret_cast<jclass>(env->NewGlobalRef(c.get())); 123 } 124 125 static jfieldID CacheField(JNIEnv* env, jclass c, bool is_static, const char* name, const char* signature) { 126 jfieldID fid = is_static ? env->GetStaticFieldID(c, name, signature) : env->GetFieldID(c, name, signature); 127 if (fid == NULL) { 128 LOG(FATAL) << "Couldn't find field \"" << name << "\" with signature \"" << signature << "\""; 129 } 130 return fid; 131 } 132 133 jmethodID CacheMethod(JNIEnv* env, jclass c, bool is_static, const char* name, const char* signature) { 134 jmethodID mid = is_static ? env->GetStaticMethodID(c, name, signature) : env->GetMethodID(c, name, signature); 135 if (mid == NULL) { 136 LOG(FATAL) << "Couldn't find method \"" << name << "\" with signature \"" << signature << "\""; 137 } 138 return mid; 139 } 140 141 static jmethodID CachePrimitiveBoxingMethod(JNIEnv* env, char prim_name, const char* boxed_name) { 142 ScopedLocalRef<jclass> boxed_class(env, env->FindClass(boxed_name)); 143 return CacheMethod(env, boxed_class.get(), true, "valueOf", 144 StringPrintf("(%c)L%s;", prim_name, boxed_name).c_str()); 145 } 146 147 void WellKnownClasses::Init(JNIEnv* env) { 148 com_android_dex_Dex = CacheClass(env, "com/android/dex/Dex"); 149 dalvik_system_DexFile = CacheClass(env, "dalvik/system/DexFile"); 150 dalvik_system_DexPathList = CacheClass(env, "dalvik/system/DexPathList"); 151 dalvik_system_DexPathList$Element = CacheClass(env, "dalvik/system/DexPathList$Element"); 152 dalvik_system_PathClassLoader = CacheClass(env, "dalvik/system/PathClassLoader"); 153 java_lang_BootClassLoader = CacheClass(env, "java/lang/BootClassLoader"); 154 java_lang_ClassLoader = CacheClass(env, "java/lang/ClassLoader"); 155 java_lang_ClassNotFoundException = CacheClass(env, "java/lang/ClassNotFoundException"); 156 java_lang_Daemons = CacheClass(env, "java/lang/Daemons"); 157 java_lang_Object = CacheClass(env, "java/lang/Object"); 158 java_lang_Error = CacheClass(env, "java/lang/Error"); 159 java_lang_reflect_AbstractMethod = CacheClass(env, "java/lang/reflect/AbstractMethod"); 160 java_lang_reflect_ArtMethod = CacheClass(env, "java/lang/reflect/ArtMethod"); 161 java_lang_reflect_Constructor = CacheClass(env, "java/lang/reflect/Constructor"); 162 java_lang_reflect_Field = CacheClass(env, "java/lang/reflect/Field"); 163 java_lang_reflect_Method = CacheClass(env, "java/lang/reflect/Method"); 164 java_lang_reflect_Proxy = CacheClass(env, "java/lang/reflect/Proxy"); 165 java_lang_RuntimeException = CacheClass(env, "java/lang/RuntimeException"); 166 java_lang_StackOverflowError = CacheClass(env, "java/lang/StackOverflowError"); 167 java_lang_String = CacheClass(env, "java/lang/String"); 168 java_lang_System = CacheClass(env, "java/lang/System"); 169 java_lang_Thread = CacheClass(env, "java/lang/Thread"); 170 java_lang_Thread$UncaughtExceptionHandler = CacheClass(env, "java/lang/Thread$UncaughtExceptionHandler"); 171 java_lang_ThreadGroup = CacheClass(env, "java/lang/ThreadGroup"); 172 java_lang_Throwable = CacheClass(env, "java/lang/Throwable"); 173 java_nio_DirectByteBuffer = CacheClass(env, "java/nio/DirectByteBuffer"); 174 java_util_Collections = CacheClass(env, "java/util/Collections"); 175 libcore_util_EmptyArray = CacheClass(env, "libcore/util/EmptyArray"); 176 org_apache_harmony_dalvik_ddmc_Chunk = CacheClass(env, "org/apache/harmony/dalvik/ddmc/Chunk"); 177 org_apache_harmony_dalvik_ddmc_DdmServer = CacheClass(env, "org/apache/harmony/dalvik/ddmc/DdmServer"); 178 179 com_android_dex_Dex_create = CacheMethod(env, com_android_dex_Dex, true, "create", "(Ljava/nio/ByteBuffer;)Lcom/android/dex/Dex;"); 180 java_lang_ClassNotFoundException_init = CacheMethod(env, java_lang_ClassNotFoundException, false, "<init>", "(Ljava/lang/String;Ljava/lang/Throwable;)V"); 181 java_lang_ClassLoader_loadClass = CacheMethod(env, java_lang_ClassLoader, false, "loadClass", "(Ljava/lang/String;)Ljava/lang/Class;"); 182 183 java_lang_Daemons_requestGC = CacheMethod(env, java_lang_Daemons, true, "requestGC", "()V"); 184 java_lang_Daemons_requestHeapTrim = CacheMethod(env, java_lang_Daemons, true, "requestHeapTrim", "()V"); 185 java_lang_Daemons_start = CacheMethod(env, java_lang_Daemons, true, "start", "()V"); 186 187 ScopedLocalRef<jclass> java_lang_ref_FinalizerReference(env, env->FindClass("java/lang/ref/FinalizerReference")); 188 java_lang_ref_FinalizerReference_add = CacheMethod(env, java_lang_ref_FinalizerReference.get(), true, "add", "(Ljava/lang/Object;)V"); 189 ScopedLocalRef<jclass> java_lang_ref_ReferenceQueue(env, env->FindClass("java/lang/ref/ReferenceQueue")); 190 java_lang_ref_ReferenceQueue_add = CacheMethod(env, java_lang_ref_ReferenceQueue.get(), true, "add", "(Ljava/lang/ref/Reference;)V"); 191 192 java_lang_reflect_Proxy_invoke = CacheMethod(env, java_lang_reflect_Proxy, true, "invoke", "(Ljava/lang/reflect/Proxy;Ljava/lang/reflect/ArtMethod;[Ljava/lang/Object;)Ljava/lang/Object;"); 193 java_lang_Thread_init = CacheMethod(env, java_lang_Thread, false, "<init>", "(Ljava/lang/ThreadGroup;Ljava/lang/String;IZ)V"); 194 java_lang_Thread_run = CacheMethod(env, java_lang_Thread, false, "run", "()V"); 195 java_lang_Thread$UncaughtExceptionHandler_uncaughtException = CacheMethod(env, java_lang_Thread$UncaughtExceptionHandler, false, "uncaughtException", "(Ljava/lang/Thread;Ljava/lang/Throwable;)V"); 196 java_lang_ThreadGroup_removeThread = CacheMethod(env, java_lang_ThreadGroup, false, "removeThread", "(Ljava/lang/Thread;)V"); 197 java_nio_DirectByteBuffer_init = CacheMethod(env, java_nio_DirectByteBuffer, false, "<init>", "(JI)V"); 198 org_apache_harmony_dalvik_ddmc_DdmServer_broadcast = CacheMethod(env, org_apache_harmony_dalvik_ddmc_DdmServer, true, "broadcast", "(I)V"); 199 org_apache_harmony_dalvik_ddmc_DdmServer_dispatch = CacheMethod(env, org_apache_harmony_dalvik_ddmc_DdmServer, true, "dispatch", "(I[BII)Lorg/apache/harmony/dalvik/ddmc/Chunk;"); 200 201 dalvik_system_DexFile_cookie = CacheField(env, dalvik_system_DexFile, false, "mCookie", "J"); 202 dalvik_system_PathClassLoader_pathList = CacheField(env, dalvik_system_PathClassLoader, false, "pathList", "Ldalvik/system/DexPathList;"); 203 dalvik_system_DexPathList_dexElements = CacheField(env, dalvik_system_DexPathList, false, "dexElements", "[Ldalvik/system/DexPathList$Element;"); 204 dalvik_system_DexPathList$Element_dexFile = CacheField(env, dalvik_system_DexPathList$Element, false, "dexFile", "Ldalvik/system/DexFile;"); 205 java_lang_Thread_daemon = CacheField(env, java_lang_Thread, false, "daemon", "Z"); 206 java_lang_Thread_group = CacheField(env, java_lang_Thread, false, "group", "Ljava/lang/ThreadGroup;"); 207 java_lang_Thread_lock = CacheField(env, java_lang_Thread, false, "lock", "Ljava/lang/Object;"); 208 java_lang_Thread_name = CacheField(env, java_lang_Thread, false, "name", "Ljava/lang/String;"); 209 java_lang_Thread_priority = CacheField(env, java_lang_Thread, false, "priority", "I"); 210 java_lang_Thread_uncaughtHandler = CacheField(env, java_lang_Thread, false, "uncaughtHandler", "Ljava/lang/Thread$UncaughtExceptionHandler;"); 211 java_lang_Thread_nativePeer = CacheField(env, java_lang_Thread, false, "nativePeer", "J"); 212 java_lang_ThreadGroup_mainThreadGroup = CacheField(env, java_lang_ThreadGroup, true, "mainThreadGroup", "Ljava/lang/ThreadGroup;"); 213 java_lang_ThreadGroup_name = CacheField(env, java_lang_ThreadGroup, false, "name", "Ljava/lang/String;"); 214 java_lang_ThreadGroup_systemThreadGroup = CacheField(env, java_lang_ThreadGroup, true, "systemThreadGroup", "Ljava/lang/ThreadGroup;"); 215 java_lang_Throwable_cause = CacheField(env, java_lang_Throwable, false, "cause", "Ljava/lang/Throwable;"); 216 java_lang_Throwable_detailMessage = CacheField(env, java_lang_Throwable, false, "detailMessage", "Ljava/lang/String;"); 217 java_lang_Throwable_stackTrace = CacheField(env, java_lang_Throwable, false, "stackTrace", "[Ljava/lang/StackTraceElement;"); 218 java_lang_Throwable_stackState = CacheField(env, java_lang_Throwable, false, "stackState", "Ljava/lang/Object;"); 219 java_lang_Throwable_suppressedExceptions = CacheField(env, java_lang_Throwable, false, "suppressedExceptions", "Ljava/util/List;"); 220 java_lang_reflect_AbstractMethod_artMethod = CacheField(env, java_lang_reflect_AbstractMethod, false, "artMethod", "Ljava/lang/reflect/ArtMethod;"); 221 java_lang_reflect_Field_artField = CacheField(env, java_lang_reflect_Field, false, "artField", "Ljava/lang/reflect/ArtField;"); 222 java_lang_reflect_Proxy_h = CacheField(env, java_lang_reflect_Proxy, false, "h", "Ljava/lang/reflect/InvocationHandler;"); 223 java_nio_DirectByteBuffer_capacity = CacheField(env, java_nio_DirectByteBuffer, false, "capacity", "I"); 224 java_nio_DirectByteBuffer_effectiveDirectAddress = CacheField(env, java_nio_DirectByteBuffer, false, "effectiveDirectAddress", "J"); 225 java_util_Collections_EMPTY_LIST = CacheField(env, java_util_Collections, true, "EMPTY_LIST", "Ljava/util/List;"); 226 libcore_util_EmptyArray_STACK_TRACE_ELEMENT = CacheField(env, libcore_util_EmptyArray, true, "STACK_TRACE_ELEMENT", "[Ljava/lang/StackTraceElement;"); 227 org_apache_harmony_dalvik_ddmc_Chunk_data = CacheField(env, org_apache_harmony_dalvik_ddmc_Chunk, false, "data", "[B"); 228 org_apache_harmony_dalvik_ddmc_Chunk_length = CacheField(env, org_apache_harmony_dalvik_ddmc_Chunk, false, "length", "I"); 229 org_apache_harmony_dalvik_ddmc_Chunk_offset = CacheField(env, org_apache_harmony_dalvik_ddmc_Chunk, false, "offset", "I"); 230 org_apache_harmony_dalvik_ddmc_Chunk_type = CacheField(env, org_apache_harmony_dalvik_ddmc_Chunk, false, "type", "I"); 231 232 java_lang_Boolean_valueOf = CachePrimitiveBoxingMethod(env, 'Z', "java/lang/Boolean"); 233 java_lang_Byte_valueOf = CachePrimitiveBoxingMethod(env, 'B', "java/lang/Byte"); 234 java_lang_Character_valueOf = CachePrimitiveBoxingMethod(env, 'C', "java/lang/Character"); 235 java_lang_Double_valueOf = CachePrimitiveBoxingMethod(env, 'D', "java/lang/Double"); 236 java_lang_Float_valueOf = CachePrimitiveBoxingMethod(env, 'F', "java/lang/Float"); 237 java_lang_Integer_valueOf = CachePrimitiveBoxingMethod(env, 'I', "java/lang/Integer"); 238 java_lang_Long_valueOf = CachePrimitiveBoxingMethod(env, 'J', "java/lang/Long"); 239 java_lang_Short_valueOf = CachePrimitiveBoxingMethod(env, 'S', "java/lang/Short"); 240 } 241 242 void WellKnownClasses::LateInit(JNIEnv* env) { 243 ScopedLocalRef<jclass> java_lang_Runtime(env, env->FindClass("java/lang/Runtime")); 244 java_lang_Runtime_nativeLoad = CacheMethod(env, java_lang_Runtime.get(), true, "nativeLoad", "(Ljava/lang/String;Ljava/lang/ClassLoader;Ljava/lang/String;)Ljava/lang/String;"); 245 } 246 247 mirror::Class* WellKnownClasses::ToClass(jclass global_jclass) { 248 return reinterpret_cast<mirror::Class*>(Thread::Current()->DecodeJObject(global_jclass)); 249 } 250 251 } // namespace art 252
