Class.cpp revision f6c387128427e121477c1b32ad35cdcaa5101ba3
1f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 3f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * you may not use this file except in compliance with the License. 6f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * You may obtain a copy of the License at 7f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 8f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 10f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See the License for the specific language governing permissions and 14f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * limitations under the License. 15f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 16f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 17f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 18f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class loading, including bootstrap class loader, linking, and 19f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * initialization. 20f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 21f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 22f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define LOG_CLASS_LOADING 0 23f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 24f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include "Dalvik.h" 25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include "libdex/DexClass.h" 26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <stdlib.h> 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <stddef.h> 29f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <sys/stat.h> 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 31f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <unistd.h> 33f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <pthread.h> 34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <cutils/process_name.h> 35f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <sys/types.h> 36f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 37f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 38f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 39f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectNotes on Linking and Verification 40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThe basic way to retrieve a class is to load it, make sure its superclass 42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectand interfaces are available, prepare its fields, and return it. This gets 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecta little more complicated when multiple threads can be trying to retrieve 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthe class simultaneously, requiring that we use the class object's monitor 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectto keep things orderly. 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThe linking (preparing, resolving) of a class can cause us to recursively 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectload superclasses and interfaces. Barring circular references (e.g. two 49f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectclasses that are superclasses of each other), this will complete without 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthe loader attempting to access the partially-linked class. 51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 52f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectWith verification, the situation is different. If we try to verify 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectevery class as we load it, we quickly run into trouble. Even the lowly 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectjava.lang.Object requires CloneNotSupportedException; follow the list 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectof referenced classes and you can head down quite a trail. The trail 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecteventually leads back to Object, which is officially not fully-formed yet. 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThe VM spec (specifically, v2 5.4.1) notes that classes pulled in during 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectverification do not need to be prepared or verified. This means that we 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectare allowed to have loaded but unverified classes. It further notes that 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthe class must be verified before it is initialized, which allows us to 62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectdefer verification for all classes until class init. You can't execute 63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectcode or access fields in an uninitialized class, so this is safe. 64f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 65f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectIt also allows a more peaceful coexistence between verified and 66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectunverifiable code. If class A refers to B, and B has a method that 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectrefers to a bogus class C, should we allow class A to be verified? 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectIf A only exercises parts of B that don't use class C, then there is 69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectnothing wrong with running code in A. We can fully verify both A and B, 70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectand allow execution to continue until B causes initialization of C. The 71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectVerifyError is thrown close to the point of use. 72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThis gets a little weird with java.lang.Class, which is the only class 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthat can be instantiated before it is initialized. We have to force 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectinitialization right after the class is created, because by definition we 76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecthave instances of it on the heap, and somebody might get a class object and 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstart making virtual calls on it. We can end up going recursive during 78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectverification of java.lang.Class, but we avoid that by checking to see if 79f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectverification is already in progress before we try to initialize it. 80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project*/ 81f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 83f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectNotes on class loaders and interaction with optimization / verification 84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectIn what follows, "pre-verification" and "optimization" are the steps 86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectperformed by the dexopt command, which attempts to verify and optimize 87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectclasses as part of unpacking jar files and storing the DEX data in the 88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectdalvik-cache directory. These steps are performed by loading the DEX 89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfiles directly, without any assistance from ClassLoader instances. 90f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 91f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectWhen we pre-verify and optimize a class in a DEX file, we make some 92f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectassumptions about where the class loader will go to look for classes. 93f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectIf we can't guarantee those assumptions, e.g. because a class ("AppClass") 94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectreferences something not defined in the bootstrap jars or the AppClass jar, 95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectwe can't pre-verify or optimize the class. 96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 97f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThe VM doesn't define the behavior of user-defined class loaders. 98f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectFor example, suppose application class AppClass, loaded by UserLoader, 99f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecthas a method that creates a java.lang.String. The first time 100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectAppClass.stringyMethod tries to do something with java.lang.String, it 101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectasks UserLoader to find it. UserLoader is expected to defer to its parent 102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectloader, but isn't required to. UserLoader might provide a replacement 103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfor String. 104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectWe can run into trouble if we pre-verify AppClass with the assumption that 106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectjava.lang.String will come from core.jar, and don't verify this assumption 107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectat runtime. There are two places that an alternate implementation of 108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectjava.lang.String can come from: the AppClass jar, or from some other jar 109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthat UserLoader knows about. (Someday UserLoader will be able to generate 110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectsome bytecode and call DefineClass, but not yet.) 111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectTo handle the first situation, the pre-verifier will explicitly check for 113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectconflicts between the class being optimized/verified and the bootstrap 114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectclasses. If an app jar contains a class that has the same package and 115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectclass name as a class in a bootstrap jar, the verification resolver refuses 116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectto find either, which will block pre-verification and optimization on 117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectclasses that reference ambiguity. The VM will postpone verification of 118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthe app class until first load. 119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectFor the second situation, we need to ensure that all references from a 121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpre-verified class are satisified by the class' jar or earlier bootstrap 122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectjars. In concrete terms: when resolving a reference to NewClass, 123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectwhich was caused by a reference in class AppClass, we check to see if 124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectAppClass was pre-verified. If so, we require that NewClass comes out 125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectof either the AppClass jar or one of the jars in the bootstrap path. 126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project(We may not control the class loaders, but we do manage the DEX files. 127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectWe can verify that it's either (loader==null && dexFile==a_boot_dex) 128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projector (loader==UserLoader && dexFile==AppClass.dexFile). Classes from 129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectDefineClass can't be pre-verified, so this doesn't apply.) 130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThis should ensure that you can't "fake out" the pre-verifier by creating 132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecta user-defined class loader that replaces system classes. It should 133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectalso ensure that you can write such a loader and have it work in the 134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectexpected fashion; all you lose is some performance due to "just-in-time 135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectverification" and the lack of DEX optimizations. 136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThere is a "back door" of sorts in the class resolution check, due to 138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthe fact that the "class ref" entries are shared between the bytecode 139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectand meta-data references (e.g. annotations and exception handler lists). 140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThe class references in annotations have no bearing on class verification, 141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectso when a class does an annotation query that causes a class reference 142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectindex to be resolved, we don't want to fail just because the calling 143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectclass was pre-verified and the resolved class is in some random DEX file. 144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThe successful resolution adds the class to the "resolved classes" table, 145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectso when optimized bytecode references it we don't repeat the resolve-time 146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectcheck. We can avoid this by not updating the "resolved classes" table 147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectwhen the class reference doesn't come out of something that has been 148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectchecked by the verifier, but that has a nonzero performance impact. 149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectSince the ultimate goal of this test is to catch an unusual situation 150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project(user-defined class loaders redefining core classes), the added caution 151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectmay not be worth the performance hit. 152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project*/ 153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassPathEntry* processClassPath(const char* pathStr, bool isBootstrap); 155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeCpeArray(ClassPathEntry* cpe); 156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassFromLoaderNoInit( 158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor, Object* loader); 159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassNoInit(const char* descriptor, Object* loader,\ 160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex); 161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex(DvmDex* pDvmDex, 162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, Object* loader); 163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadMethodFromDex(ClassObject* clazz, const DexMethod* pDexMethod,\ 164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth); 165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int computeJniArgInfo(const DexProto* proto); 166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadSFieldFromDex(ClassObject* clazz, 167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexSField, StaticField* sfield); 168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadIFieldFromDex(ClassObject* clazz, 169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexIField, InstField* field); 170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeMethodInnards(Method* meth); 171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createVtable(ClassObject* clazz); 172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createIftable(ClassObject* clazz); 173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool insertMethodStubs(ClassObject* clazz); 174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool computeFieldOffsets(ClassObject* clazz); 175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwEarlierClassFailure(ClassObject* clazz); 176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Logs information about a class loading with given timestamp. 180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: In the case where we fail in dvmLinkClass() and log the class as closing (type='<'), 182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it would probably be better to use a new type code to indicate the failure. This change would 183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * require a matching change in the parser and analysis code in frameworks/base/tools/preload. 184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void logClassLoadWithTime(char type, ClassObject* clazz, u8 time) { 186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pid_t ppid = getppid(); 187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pid_t pid = getpid(); 188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project unsigned int tid = (unsigned int) pthread_self(); 189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOG(LOG_INFO, "PRELOAD", "%c%d:%d:%d:%s:%d:%s:%lld\n", type, ppid, pid, tid, 191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project get_process_name(), (int) clazz->classLoader, clazz->descriptor, 192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project time); 193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Logs information about a class loading. 197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void logClassLoad(char type, ClassObject* clazz) { 199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoadWithTime(type, clazz, dvmGetThreadCpuTimeNsec()); 200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Some LinearAlloc unit tests. 205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void linearAllocTests() 207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* fiddle; 209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int try = 1; 210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (try) { 212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 0: 213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-28); 214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 1: 217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-24); 218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 2: 221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-20); 222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 3: 225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-16); 226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 4: 229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-12); 230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 896); 234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 20); // watch addr of this alloc 236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 1); 239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'q'; 240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 4096); 242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'x'; 243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[4095] = 'y'; 244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(NULL, fiddle); 246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 0); 247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearRealloc(NULL, fiddle, 12); 249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[11] = 'z'; 250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearRealloc(NULL, fiddle, 5); 252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 17001); 254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'x'; 255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[17000] = 'y'; 256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* str = dvmLinearStrdup(NULL, "This is a test!"); 259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("GOT: '%s'\n", str); 260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearAllocDump(NULL); 262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(NULL, str); 263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Initialize the bootstrap class loader. 267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Call this after the bootclasspath string has been finalized. 269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmClassStartup(void) 271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* unlinkedClass; 273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* make this a requirement -- don't currently support dirs in path */ 275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(gDvm.bootClassPathStr, ".") == 0) { 276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: must specify non-'.' bootclasspath\n"); 277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.loadedClasses = 281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableCreate(256, (HashFreeFunc) dvmFreeClassInnards); 282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.pBootLoaderAlloc = dvmLinearAllocCreate(NULL); 284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.pBootLoaderAlloc == NULL) 285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false) { 288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project linearAllocTests(); 289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project exit(0); 290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class serial number. We start with a high value to make it distinct 294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in binary dumps (e.g. hprof). 295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classSerialNumber = 0x50000000; 297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This placeholder class is used while a ClassObject is 300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loading/linking so those not in the know can still say 301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "obj->clazz->...". 302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project unlinkedClass = &gDvm.unlinkedJavaLangClassObject; 304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memset(unlinkedClass, 0, sizeof(*unlinkedClass)); 306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Set obj->clazz to NULL so anyone who gets too interested 308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in the fake class will crash. 309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DVM_OBJECT_INIT(&unlinkedClass->obj, NULL); 311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project unlinkedClass->descriptor = "!unlinkedClass"; 312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetClassSerialNumber(unlinkedClass); 313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.unlinkedJavaLangClass = unlinkedClass; 315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Process the bootstrap class path. This means opening the specified 318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * DEX or Jar files and possibly running them through the optimizer. 319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.bootClassPath == NULL); 321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project processClassPath(gDvm.bootClassPathStr, true); 322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.bootClassPath == NULL) 324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Clean up. 331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmClassShutdown(void) 333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* discard all system-loaded classes */ 337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableFree(gDvm.loadedClasses); 338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.loadedClasses = NULL; 339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* discard primitive classes created for arrays */ 341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < PRIM_MAX; i++) 342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFreeClassInnards(gDvm.primitiveClass[i]); 343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* this closes DEX files, JAR files, etc. */ 345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeCpeArray(gDvm.bootClassPath); 346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = NULL; 347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearAllocDestroy(NULL); 349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Bootstrap class loader 355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of a ClassPathEntry array. 360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void dumpClassPath(const ClassPathEntry* cpe) 362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int idx = 0; 364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* kindStr; 367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: kindStr = "dir"; break; 370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: kindStr = "jar"; break; 371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: kindStr = "dex"; break; 372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: kindStr = "???"; break; 373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: type=%s %s %p\n", idx, kindStr, cpe->fileName, cpe->ptr); 376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (CALC_CACHE_STATS && cpe->kind == kCpeJar) { 377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex = dvmGetJarFileDex(pJarFile); 379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDumpAtomicCacheStats(pDvmDex->pInterfaceCache); 380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx++; 384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of the bootstrap class path. 389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpBootClassPath(void) 391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dumpClassPath(gDvm.bootClassPath); 393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if the class path contains the specified path. 397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmClassPathContains(const ClassPathEntry* cpe, const char* path) 399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(cpe->fileName, path) == 0) 402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free an array of ClassPathEntry structs. 411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We release the contents of each entry, then free the array itself. 413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeCpeArray(ClassPathEntry* cpe) 415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry* cpeStart = cpe; 417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cpe == NULL) 419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* free JarFile */ 425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmJarFileFree((JarFile*) cpe->ptr); 426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* free RawDexFile */ 429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmRawDexFileFree((RawDexFile*) cpe->ptr); 430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* e.g. kCpeDir */ 433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(cpe->ptr == NULL); 434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpe->fileName); 438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpeStart); 442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Prepare a ClassPathEntry struct, which at this point only has a valid 446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * filename. We need to figure out what kind of file it is, and for 447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * everything other than directories we need to open it up and see 448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * what's inside. 449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool prepareCpe(ClassPathEntry* cpe, bool isBootstrap) 451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = NULL; 453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RawDexFile* pRawDexFile = NULL; 454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project struct stat sb; 455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int cc; 456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cc = stat(cpe->fileName, &sb); 458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cc < 0) { 459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Unable to stat classpath element '%s'\n", cpe->fileName); 460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (S_ISDIR(sb.st_mode)) { 463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The directory will usually have .class files in subdirectories, 465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * which may be a few levels down. Doing a recursive scan and 466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * caching the results would help us avoid hitting the filesystem 467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on misses. Whether or not this is of measureable benefit 468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * depends on a number of factors, but most likely it is not 469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * worth the effort (especially since most of our stuff will be 470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in DEX or JAR). 471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeDir; 473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(cpe->ptr == NULL); 474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmJarFileOpen(cpe->fileName, NULL, &pJarFile, isBootstrap) == 0) { 478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeJar; 479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->ptr = pJarFile; 480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // TODO: do we still want to support "raw" DEX files in the classpath? 484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmRawDexFileOpen(cpe->fileName, NULL, &pRawDexFile, isBootstrap) == 0) 485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeDex; 487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->ptr = pRawDexFile; 488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Convert a colon-separated list of directories, Zip files, and DEX files 496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * into an array of ClassPathEntry structs. 497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we're unable to load a bootstrap class path entry, we fail. This 499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * is necessary to preserve the dependencies implied by optimized DEX files 500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (e.g. if the same class appears in multiple places). 501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * During normal startup we fail if there are no entries, because we won't 503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * get very far without the basic language support classes, but if we're 504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * optimizing a DEX file we allow it. 505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassPathEntry* processClassPath(const char* pathStr, bool isBootstrap) 507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry* cpe = NULL; 509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* mangle; 510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* cp; 511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* end; 512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int idx, count; 513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pathStr != NULL); 515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mangle = strdup(pathStr); 517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Run through and essentially strtok() the string. Get a count of 520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the #of elements while we're at it. 521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the path was constructed strangely (e.g. ":foo::bar:") this will 523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * over-allocate, which isn't ideal but is mostly harmless. 524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count = 1; 526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (cp = mangle; *cp != '\0'; cp++) { 527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*cp == ':') { /* separates two entries */ 528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count++; 529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *cp = '\0'; 530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project end = cp; 533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Allocate storage. We over-alloc by one so we can set an "end" marker. 536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe = (ClassPathEntry*) calloc(count+1, sizeof(ClassPathEntry)); 538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set the global pointer so the DEX file dependency stuff can find it. 541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = cpe; 543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Go through a second time, pulling stuff out. 546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cp = mangle; 548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx = 0; 549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cp < end) { 550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*cp == '\0') { 551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* leading, trailing, or doubled ':'; ignore it */ 552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry tmp; 554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.kind = kCpeUnknown; 555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.fileName = strdup(cp); 556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.ptr = NULL; 557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* drop an end marker here so DEX loader can walk unfinished list */ 559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].kind = kCpeLastEntry; 560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].fileName = NULL; 561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].ptr = NULL; 562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!prepareCpe(&tmp, isBootstrap)) { 564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGD("Failed on '%s' (boot=%d)\n", tmp.fileName, isBootstrap); 565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* drop from list and continue on */ 566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(tmp.fileName); 567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (isBootstrap || gDvm.optimizing) { 569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* if boot path entry or we're optimizing, this is fatal */ 570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpe); 571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe = NULL; 572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* copy over, pointers and all */ 576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (tmp.fileName[0] != '/') 577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Non-absolute bootclasspath entry '%s'\n", 578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.fileName); 579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx] = tmp; 580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx++; 581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cp += strlen(cp) +1; 585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(idx <= count); 587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (idx == 0 && !gDvm.optimizing) { 588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: no valid entries found in bootclasspath '%s'\n", pathStr); 589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpe); 590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe = NULL; 591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" (filled %d of %d slots)\n", idx, count); 595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* put end marker in over-alloc slot */ 597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].kind = kCpeLastEntry; 598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].fileName = NULL; 599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].ptr = NULL; 600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dumpClassPath(cpe); 602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(mangle); 605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = cpe; 606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return cpe; 607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Search the DEX files we loaded from the bootstrap class path for a DEX 611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * file that has the class with the matching descriptor. 612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns the matching DEX file and DexClassDef entry if found, otherwise 614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * returns NULL. 615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic DvmDex* searchBootPathForClass(const char* descriptor, 617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef** ppClassDef) 618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pFoundDef = NULL; 621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pFoundFile = NULL; 622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("+++ class '%s' not yet loaded, scanning bootclasspath...\n", 624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor); 625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ checking '%s' (%d)\n", cpe->fileName, cpe->kind); 628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: 631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Directory entries ('%s') not supported in bootclasspath\n", 632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->fileName); 633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex; 639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = dvmGetJarFileDex(pJarFile); 641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = pDvmDex; 646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto found; 647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RawDexFile* pRawDexFile = (RawDexFile*) cpe->ptr; 653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex; 655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = dvmGetRawDexFileDex(pRawDexFile); 657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = pDvmDex; 662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto found; 663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unknown kind %d\n", cpe->kind); 668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Special handling during verification + optimization. 677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The DEX optimizer needs to load classes from the DEX file it's working 679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on. Rather than trying to insert it into the bootstrap class path 680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * or synthesizing a class loader to manage it, we just make it available 681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * here. It logically comes after all existing entries in the bootstrap 682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class path. 683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.bootClassPathOptExtra != NULL) { 685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = 688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexFindClass(gDvm.bootClassPathOptExtra->pDexFile, descriptor); 689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = gDvm.bootClassPathOptExtra; 693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfound: 697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *ppClassDef = pFoundDef; 698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return pFoundFile; 699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set the "extra" DEX, which becomes a de facto member of the bootstrap 703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class set. 704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetBootPathExtraDex(DvmDex* pDvmDex) 706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPathOptExtra = pDvmDex; 708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Return the #of entries in the bootstrap class path. 713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (Used for ClassLoader.getResources().) 715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmGetBootPathSize(void) 717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) 721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return cpe - gDvm.bootClassPath; 724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find a resource with the specified name in entry N of the boot class path. 728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We return a newly-allocated String of one of these forms: 730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * file://path/name 731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * jar:file://path!/name 732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Where "path" is the bootstrap class path entry and "name" is the string 733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * passed into this method. "path" needs to be an absolute path (starting 734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with '/'); if it's not we'd need to "absolutify" it as part of forming 735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the URL string. 736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectStringObject* dvmGetBootPathResource(const char* name, int idx) 738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const int kUrlOverhead = 13; // worst case for Jar URL 740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StringObject* urlObj = NULL; 742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ searching for resource '%s' in %d(%s)\n", 744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project name, idx, cpe[idx].fileName); 745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* we could use direct array index, but I don't entirely trust "idx" */ 747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (idx-- && cpe->kind != kCpeLastEntry) 748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cpe->kind == kCpeLastEntry) { 750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char urlBuf[strlen(name) + strlen(cpe->fileName) + kUrlOverhead +1]; 755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: 758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sprintf(urlBuf, "file://%s/%s", cpe->fileName, name); 759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (access(urlBuf+7, F_OK) != 0) 760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dexZipFindEntry(&pJarFile->archive, name) == NULL) 766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sprintf(urlBuf, "jar:file://%s!/%s", cpe->fileName, name); 768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("No resources in DEX files\n"); 772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ using URL='%s'\n", urlBuf); 779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project urlObj = dvmCreateStringFromCstr(urlBuf, ALLOC_DEFAULT); 780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return urlObj; 783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class list management 789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* search for these criteria in the Class hash table */ 793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecttypedef struct ClassMatchCriteria { 794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader; 796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} ClassMatchCriteria; 797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define kInitLoaderInc 4 /* must be power of 2 */ 799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Determine if "loader" appears in clazz' initiating loader list. 802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class hash table lock must be held when calling here, since 804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it's also used when updating a class' initiating loader list. 805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: switch to some sort of lock-free data structure so we don't have 807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to grab the lock to do a lookup. Among other things, this would improve 808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the speed of compareDescriptorClasses(). 809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmLoaderInInitiatingList(const ClassObject* clazz, const Object* loader) 811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The bootstrap class loader can't be just an initiating loader for 814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything (it's always the defining loader if the class is visible 815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to it). We don't put defining loaders in the initiating list. 816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader == NULL) 818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Scan the list for a match. The list is expected to be short. 822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = clazz->initiatingLoaderCount-1; i >= 0; --i) { 825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->initiatingLoaders[i] == loader) { 826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("+++ found initiating match %p in %s\n", 827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // loader, clazz->descriptor); 828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add "loader" to clazz's initiating loader set, unless it's the defining 836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class loader. 837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In the common case this will be a short list, so we don't need to do 839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything too fancy here. 840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This locks gDvm.loadedClasses for synchronization, so don't hold it 842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * when calling here. 843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmAddInitiatingLoader(ClassObject* clazz, Object* loader) 845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != clazz->classLoader) { 847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader != NULL); 848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Adding %p to '%s' init list\n", loader, clazz->descriptor); 850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Make sure nobody snuck in. The penalty for adding twice is 854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pretty minor, and probably outweighs the O(n^2) hit for 855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * checking before every add, so we may not want to do this. 856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false && dvmLoaderInInitiatingList(clazz, loader)) { 858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("WOW: simultaneous add of initiating class loader\n"); 859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The list never shrinks, so we just keep a count of the 864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * number of elements in it, and reallocate the buffer when 865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we run off the end. 866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The pointer is initially NULL, so we *do* want to call realloc 868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * when count==0. 869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((clazz->initiatingLoaderCount & (kInitLoaderInc-1)) == 0) { 871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object** newList; 872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newList = (Object**) realloc(clazz->initiatingLoaders, 874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (clazz->initiatingLoaderCount + kInitLoaderInc) 875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sizeof(Object*)); 876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newList == NULL) { 877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* this is mainly a cache, so it's not the EotW */ 878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initiatingLoaders = newList; 882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("Expanded init list to %d (%s)\n", 884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->initiatingLoaderCount+kInitLoaderInc, 885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor); 886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initiatingLoaders[clazz->initiatingLoaderCount++] = loader; 889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_unlock: 891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This is a dvmHashTableLookup callback.) 897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Entries in the class hash table are stored as { descriptor, d-loader } 899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * tuples. If the hashed class descriptor matches the requested descriptor, 900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and the hashed defining class loader matches the requested class 901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader, we're good. If only the descriptor matches, we check to see if the 902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader is in the hashed class' initiating loader list. If so, we 903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * can return "true" immediately and skip some of the loadClass melodrama. 904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller must lock the hash table before calling here. 906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns 0 if a matching entry is found, nonzero otherwise. 908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int hashcmpClassByCrit(const void* vclazz, const void* vcrit) 910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassMatchCriteria* pCrit = (const ClassMatchCriteria*) vcrit; 913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool match; 914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project match = (strcmp(clazz->descriptor, pCrit->descriptor) == 0 && 916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (clazz->classLoader == pCrit->loader || 917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (pCrit->loader != NULL && 918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLoaderInInitiatingList(clazz, pCrit->loader)) )); 919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //if (match) 920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // LOGI("+++ %s %p matches existing %s %p\n", 921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // pCrit->descriptor, pCrit->loader, 922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->classLoader); 923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return !match; 924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Like hashcmpClassByCrit, but passing in a fully-formed ClassObject 928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * instead of a ClassMatchCriteria. 929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int hashcmpClassByClass(const void* vclazz, const void* vaddclazz) 931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* addClazz = (const ClassObject*) vaddclazz; 934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool match; 935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project match = (strcmp(clazz->descriptor, addClazz->descriptor) == 0 && 937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (clazz->classLoader == addClazz->classLoader || 938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (addClazz->classLoader != NULL && 939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLoaderInInitiatingList(clazz, addClazz->classLoader)) )); 940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return !match; 941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Search through the hash table to find an entry with a matching descriptor 945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and an initiating class loader that matches "loader". 946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The table entries are hashed on descriptor only, because they're unique 948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on *defining* class loader, not *initiating* class loader. This isn't 949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * great, because it guarantees we will have to probe when multiple 950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class loaders are used. 951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note this does NOT try to load a class; it just finds a class that 953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has already been loaded. 954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If "unprepOkay" is set, this will return classes that have been added 956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to the hash table but are not yet fully loaded and linked. Otherwise, 957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * such classes are ignored. (The only place that should set "unprepOkay" 958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * is findClassNoInit(), which will wait for the prep to finish.) 959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns NULL if not found. 961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmLookupClass(const char* descriptor, Object* loader, 963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool unprepOkay) 964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassMatchCriteria crit; 966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void* found; 967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash; 968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project crit.descriptor = descriptor; 970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project crit.loader = loader; 971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hash = dvmComputeUtf8Hash(descriptor); 972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("threadid=%d: dvmLookupClass searching for '%s' %p\n", 974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThreadSelf()->threadId, descriptor, loader); 975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = dvmHashTableLookup(gDvm.loadedClasses, hash, &crit, 978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByCrit, false); 979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class has been added to the hash table but isn't ready for use. 983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're going to act like we didn't see it, so that the caller will 984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * go through the full "find class" path, which includes locking the 985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * object and waiting until it's ready. We could do that lock/wait 986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * here, but this is an extremely rare case, and it's simpler to have 987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the wait-for-class code centralized. 988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (found != NULL && !unprepOkay && !dvmIsClassLinked(found)) { 990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Ignoring not-yet-ready %s, using slow path\n", 991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ((ClassObject*)found)->descriptor); 992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = NULL; 993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (ClassObject*) found; 996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add a new class to the hash table. 1000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class is considered "new" if it doesn't match on both the class 1002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptor and the defining class loader. 1003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: we should probably have separate hash tables for each 1005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ClassLoader. This could speed up dvmLookupClass and 1006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * other common operations. It does imply a VM-visible data structure 1007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for each ClassLoader object with loaded classes, which we don't 1008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have yet. 1009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmAddClassToHash(ClassObject* clazz) 1011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void* found; 1013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash; 1014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hash = dvmComputeUtf8Hash(clazz->descriptor); 1016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = dvmHashTableLookup(gDvm.loadedClasses, hash, clazz, 1019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByClass, true); 1020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ dvmAddClassToHash '%s' %p (isnew=%d) --> %p\n", 1023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader, 1024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (found == (void*) clazz), clazz); 1025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmCheckClassTablePerf(); 1027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* can happen if two threads load the same class simultaneously */ 1029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (found == (void*) clazz); 1030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if 0 1033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compute hash value for a class. 1035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectu4 hashcalcClass(const void* item) 1037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmComputeUtf8Hash(((const ClassObject*) item)->descriptor); 1039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Check the performance of the "loadedClasses" hash table. 1043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmCheckClassTablePerf(void) 1045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableProbeCount(gDvm.loadedClasses, hashcalcClass, 1048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByClass); 1049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Remove a class object from the hash table. 1055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void removeClassFromHash(ClassObject* clazz) 1057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ removeClassFromHash '%s'\n", clazz->descriptor); 1059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash = dvmComputeUtf8Hash(clazz->descriptor); 1061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmHashTableRemove(gDvm.loadedClasses, hash, clazz)) 1064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Hash table remove failed on class '%s'\n", clazz->descriptor); 1065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 1071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class creation 1072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 1073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set clazz->serialNumber to the next available value. 1077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This usually happens *very* early in class creation, so don't expect 1079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything else in the class to be ready. 1080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetClassSerialNumber(ClassObject* clazz) 1082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 oldValue, newValue; 1084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->serialNumber == 0); 1086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { 1088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldValue = gDvm.classSerialNumber; 1089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newValue = oldValue + 1; 1090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } while (!ATOMIC_CMP_SWAP(&gDvm.classSerialNumber, oldValue, newValue)); 1091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->serialNumber = (u4) oldValue; 1093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), using the specified 1098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * initiating ClassLoader. 1099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class will be loaded and initialized if it has not already been. 1101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If necessary, the superclass will be loaded. 1102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class can't be found, returns NULL with an appropriate exception 1104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * raised. 1105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindClass(const char* descriptor, Object* loader) 1107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindClassNoInit(descriptor, loader); 1111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL && clazz->status < CLASS_INITIALIZED) { 1112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* initialize class */ 1113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz)) { 1114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init failed; leave it in the list, marked as bad */ 1115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 1116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_ERROR); 1117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), using the specified 1126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * initiating ClassLoader. 1127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class will be loaded if it has not already been, as will its 1129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass. It will not be initialized. 1130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class can't be found, returns NULL with an appropriate exception 1132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * raised. 1133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindClassNoInit(const char* descriptor, 1135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader) 1136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(descriptor != NULL); 1138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //assert(loader != NULL); 1139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("FindClassNoInit '%s' %p\n", descriptor, loader); 1141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*descriptor == '[') { 1143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Array class. Find in table, generate if not found. 1145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmFindArrayClass(descriptor, loader); 1147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Regular class. Find in table, load if not found. 1150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != NULL) { 1152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassFromLoaderNoInit(descriptor, loader); 1153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmFindSystemClassNoInit(descriptor); 1155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load the named class (by descriptor) from the specified class 1161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader. This calls out to let the ClassLoader object do its thing. 1162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns with NULL and an exception raised on error. 1164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassFromLoaderNoInit(const char* descriptor, 1166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader) 1167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("##### findClassFromLoaderNoInit (%s,%p)\n", 1169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // descriptor, loader); 1170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 1172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader != NULL); 1175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Do we already have it? 1178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class loader code does the "is it already loaded" check as 1180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * well. However, this call is much faster than calling through 1181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interpreted code. Doing this does mean that in the common case 1182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (365 out of 420 calls booting the sim) we're doing the 1183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * lookup-by-descriptor twice. It appears this is still a win, so 1184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm keeping it in. 1185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, false); 1187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL) { 1188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Already loaded: %s %p\n", descriptor, loader); 1189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Not already loaded: %s %p\n", descriptor, loader); 1192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* dotName = NULL; 1195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StringObject* nameObj = NULL; 1196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* excep; 1197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* loadClass; 1198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* convert "Landroid/debug/Stuff;" to "android.debug.Stuff" */ 1200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dotName = dvmDescriptorToDot(descriptor); 1201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dotName == NULL) { 1202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/OutOfMemoryError;", NULL); 1203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project nameObj = dvmCreateStringFromCstr(dotName, ALLOC_DEFAULT); 1206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (nameObj == NULL) { 1207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 1208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // TODO: cache the vtable offset 1212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadClass = dvmFindVirtualMethodHierByDescriptor(loader->clazz, "loadClass", 1213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "(Ljava/lang/String;)Ljava/lang/Class;"); 1214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loadClass == NULL) { 1215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Couldn't find loadClass in ClassLoader\n"); 1216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepBegin(); 1221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Invoke loadClass(). This will probably result in a couple of 1225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exceptions being thrown, because the ClassLoader.loadClass() 1226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implementation eventually calls VMClassLoader.loadClass to see if 1227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the bootstrap class loader can find it before doing its own load. 1228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- Invoking loadClass(%s, %p)\n", dotName, loader); 1230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue result; 1231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, loadClass, loader, &result, nameObj); 1232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = (ClassObject*) result.l; 1233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepEnd(); 1236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project excep = dvmGetException(self); 1239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (excep != NULL) { 1240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if DVM_SHOW_EXCEPTION >= 2 1241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGD("NOTE: loadClass '%s' %p threw exception %s\n", 1242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dotName, loader, excep->clazz->descriptor); 1243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc(excep, self); 1245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(self); 1246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowChainedExceptionWithClassMessage( 1247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/NoClassDefFoundError;", descriptor, excep); 1248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(excep, self); 1249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL); 1253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddInitiatingLoader(clazz, loader); 1256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- Successfully loaded %s %p (thisldr=%p clazz=%p)\n", 1258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, clazz->classLoader, loader, clazz); 1259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 1261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*)nameObj, NULL); 1262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(dotName); 1263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load the named class (by descriptor) from the specified DEX file. 1268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Used by class loaders to instantiate a class object from a 1269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * VM-managed DEX. 1270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmDefineClass(DvmDex* pDvmDex, const char* descriptor, 1272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* classLoader) 1273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pDvmDex != NULL); 1275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassNoInit(descriptor, classLoader, pDvmDex); 1277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), scanning through the 1282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bootclasspath if it hasn't already been loaded. 1283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "descriptor" looks like "Landroid/debug/Stuff;". 1285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Uses NULL as the defining class loader. 1287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindSystemClass(const char* descriptor) 1289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindSystemClassNoInit(descriptor); 1293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL && clazz->status < CLASS_INITIALIZED) { 1294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* initialize class */ 1295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz)) { 1296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init failed; leave it in the list, marked as bad */ 1297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 1298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_ERROR); 1299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), searching for it in the 1308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bootclasspath. 1309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, this returns NULL with an exception raised. 1311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindSystemClassNoInit(const char* descriptor) 1313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassNoInit(descriptor, NULL, NULL); 1315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor). If it's not already loaded, 1319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we load it and link it, but don't execute <clinit>. (The VM has 1320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * specific limitations on which events can cause initialization.) 1321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If "pDexFile" is NULL, we will search the bootclasspath for an entry. 1323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, this returns NULL with an exception raised. 1325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: we need to return an indication of whether we loaded the class or 1327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * used an existing definition. If somebody deliberately tries to load a 1328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class twice in the same class loader, they should get a LinkageError, 1329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but inadvertent simultaneous class references should "just work". 1330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassNoInit(const char* descriptor, Object* loader, 1332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex) 1333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 1335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool profilerNotified = false; 1338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != NULL) { 1341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("#### findClassNoInit(%s,%p,%p)\n", descriptor, loader, 1342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex->pDexFile); 1343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't expect an exception to be raised at this point. The 1347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exception handling code is good about managing this. This *can* 1348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * happen if a JNI lookup fails and the JNI code doesn't do any 1349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * error checking before doing another class lookup, so we may just 1350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * want to clear this and restore it on exit. If we don't, some kinds 1351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of failures can't be detected without rearranging other stuff. 1352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Most often when we hit this situation it means that something is 1354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * broken in the VM or in JNI code, so I'm keeping it in place (and 1355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * making it an informative abort rather than an assert). 1356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 1358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Class lookup %s attemped while exception %s pending\n", 1359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, dvmGetException(self)->clazz->descriptor); 1360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDumpAllThreads(false); 1361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 1362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, true); 1365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) { 1366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 1367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepBegin(); 1370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project profilerNotified = true; 1371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u8 startTime = dvmGetThreadCpuTimeNsec(); 1375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDvmDex == NULL) { 1378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader == NULL); /* shouldn't be here otherwise */ 1379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = searchBootPathForClass(descriptor, &pClassDef); 1380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 1382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDvmDex == NULL || pClassDef == NULL) { 1385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage( 1386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/NoClassDefFoundError;", descriptor); 1387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found a match, try to load it */ 1391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = loadClassFromDex(pDvmDex, pClassDef, loader); 1392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 1393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* class was found but had issues */ 1394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Lock the class while we link it so other threads must wait for us 1400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to finish. Set the "initThreadId" so we can identify recursive 1401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * invocation. 1402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 1404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = self->threadId; 1405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add to hash table so lookups succeed. 1408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * [Are circular references possible when linking a class?] 1410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->classLoader == loader); 1412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmAddClassToHash(clazz)) { 1413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Another thread must have loaded the class after we 1415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * started but before we finished. Discard what we've 1416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * done and leave some hints for the GC. 1417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (Yes, this happens.) 1419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGW("WOW: somebody loaded %s simultaneously\n", descriptor); 1421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = 0; 1422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Let the GC free the class. 1425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.unlinkedJavaLangClass); 1427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Grab the winning class. 1430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, true); 1432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL); 1433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto got_class; 1434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoadWithTime('>', clazz, startTime); 1439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Prepare and resolve. 1442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmLinkClass(clazz, false)) { 1444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 1445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Make note of the error and clean up the class. 1447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project removeClassFromHash(clazz); 1449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 1450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFreeClassInnards(clazz); 1451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Let any waiters know. 1453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = 0; 1455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 1456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOG(LOG_INFO, "DVMLINK FAILED FOR CLASS ", "%s in %s\n", 1460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, get_process_name()); 1461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: It would probably be better to use a new type code here (instead of '<') to 1464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * indicate the failure. This change would require a matching change in the parser 1465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and analysis code in frameworks/base/tools/preload. 1466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('<', clazz); 1468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.optimizing) { 1471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* happens with "external" libs */ 1472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Link of class '%s' failed\n", descriptor); 1473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Link of class '%s' failed\n", descriptor); 1475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 1479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add class stats to global counters. 1483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: these should probably be atomic ops. 1485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numLoadedClasses++; 1487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredMethods += 1488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount + clazz->directMethodCount; 1489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredInstFields += clazz->ifieldCount; 1490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredStaticFields += clazz->sfieldCount; 1491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache pointers to basic classes. We want to use these in 1494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * various places, and it's easiest to initialize them on first 1495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * use rather than trying to force them to initialize (startup 1496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ordering makes it weird). 1497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangObject == NULL && 1499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project strcmp(descriptor, "Ljava/lang/Object;") == 0) 1500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* It should be impossible to get here with anything 1502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but the bootclasspath loader. 1503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader == NULL); 1505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangObject = clazz; 1506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('<', clazz); 1510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectgot_class: 1514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsClassLinked(clazz) && clazz->status != CLASS_ERROR) { 1515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can race with other threads for class linking. We should 1517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * never get here recursively; doing so indicates that two 1518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * classes have circular dependencies. 1519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * One exception: we force discovery of java.lang.Class in 1521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmLinkClass(), and Class has Object as its superclass. So 1522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * if the first thing we ever load is Object, we will init 1523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Object->Class->Object. The easiest way to avoid this is to 1524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ensure that Object is never the first thing we look up, so 1525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we get Foo->Class->Object instead. 1526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 1528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsClassLinked(clazz) && 1529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId == self->threadId) 1530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Recursive link on class %s\n", clazz->descriptor); 1532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage( 1534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ClassCircularityError;", clazz->descriptor); 1535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("WAITING for '%s' (owner=%d)\n", 1539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->initThreadId); 1540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (!dvmIsClassLinked(clazz) && clazz->status != CLASS_ERROR) { 1541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectWait(self, (Object*) clazz, 0, 0, false); 1542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 1546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Somebody else tried to load this and failed. We need to raise 1548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception and report failure. 1549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 1551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* check some invariants */ 1557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmIsClassLinked(clazz)); 1558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.classJavaLangClass != NULL); 1559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.classJavaLangClass); 1560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != gDvm.classJavaLangObject) { 1561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super == NULL) { 1562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Non-Object has no superclass (gDvm.classJavaLangObject=%p)\n", 1563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangObject); 1564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 1565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(clazz)) { 1568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("class=%s vtableCount=%d, virtualMeth=%d\n", 1569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->vtableCount, 1570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->virtualMethodCount); 1571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtableCount >= clazz->virtualMethodCount); 1572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Normally class objects are initialized before we instantiate them, 1576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but we can't do that with java.lang.Class (chicken, meet egg). We 1577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * do it explicitly here. 1578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The verifier could call here to find Class while verifying Class, 1580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * so we need to check for CLASS_VERIFYING as well as !initialized. 1581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == gDvm.classJavaLangClass && !dvmIsClassInitialized(clazz) && 1583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project !(clazz->status == CLASS_VERIFYING)) 1584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ explicitly initializing %s\n", clazz->descriptor); 1586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmInitClass(clazz); 1587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 1590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (profilerNotified) 1592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepEnd(); 1593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL || dvmCheckException(self)); 1595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Helper for loadClassFromDex, which takes a DexClassDataHeader and 1600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * encoded data pointer in addition to the other arguments. 1601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex0(DvmDex* pDvmDex, 1603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, const DexClassDataHeader* pHeader, 1604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u1* pEncodedData, Object* classLoader) 1605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* newClass = NULL; 1607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFile* pDexFile; 1608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 1609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 1610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = pDvmDex->pDexFile; 1612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexGetClassDescriptor(pDexFile, pClassDef); 1613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Make sure the aren't any "bonus" flags set, since we use them for 1616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * runtime state. 1617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((pClassDef->accessFlags & ~EXPECTED_FILE_FLAGS) != 0) { 1619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Invalid file flags in class %s: %04x\n", 1620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, pClassDef->accessFlags); 1621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Allocate storage for the class object on the GC heap, so that other 1626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * objects can have references to it. We bypass the usual mechanism 1627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (allocObject), because we don't have all the bits and pieces yet. 1628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note that we assume that java.lang.Class does not override 1630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finalize(). 1631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass = (ClassObject*) dvmMalloc(sizeof(*newClass), ALLOC_DEFAULT); 1633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newClass == NULL) 1634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Until the class is loaded and linked, use a placeholder 1637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * obj->clazz value as a hint to the GC. We don't want 1638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the GC trying to scan the object while it's full of Idx 1639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * values. Also, the real java.lang.Class may not exist 1640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * yet. 1641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DVM_OBJECT_INIT(&newClass->obj, gDvm.unlinkedJavaLangClass); 1643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetClassSerialNumber(newClass); 1645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->descriptor = descriptor; 1646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(newClass->descriptorAlloc == NULL); 1647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->accessFlags = pClassDef->accessFlags; 1648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->classLoader = classLoader; 1649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->pDvmDex = pDvmDex; 1650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->primitiveType = PRIM_NOT; 1651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Stuff the superclass index into the object pointer field. The linker 1654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pulls it out and replaces it with a resolved ClassObject pointer. 1655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm doing it this way (rather than having a dedicated superclassIdx 1656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field) to save a few bytes of overhead per class. 1657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * newClass->super is not traversed or freed by dvmFreeClassInnards, so 1659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this is safe. 1660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(sizeof(u4) == sizeof(ClassObject*)); 1662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->super = (ClassObject*) pClassDef->superclassIdx; 1663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Stuff class reference indices into the pointer fields. 1666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The elements of newClass->interfaces are not traversed or freed by 1668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmFreeClassInnards, so this is GC-safe. 1669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexTypeList* pInterfacesList; 1671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pInterfacesList = dexGetInterfacesList(pDexFile, pClassDef); 1672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pInterfacesList != NULL) { 1673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaceCount = pInterfacesList->size; 1674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaces = (ClassObject**) dvmLinearAlloc(classLoader, 1675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaceCount * sizeof(ClassObject*)); 1676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < newClass->interfaceCount; i++) { 1678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexTypeItem* pType = dexGetTypeItem(pInterfacesList, i); 1679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaces[i] = (ClassObject*)(u4) pType->typeIdx; 1680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->interfaces); 1682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* load field definitions */ 1685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: consider over-allocating the class object and appending the 1688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * static field info onto the end. It's fixed-size and known at alloc 1689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * time. This would save a couple of native heap allocations, but it 1690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * would also make heap compaction more difficult because we pass Field 1691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pointers around internally. 1692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->staticFieldsSize != 0) { 1695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* static fields stay on system heap; field data isn't "write once" */ 1696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->staticFieldsSize; 1697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexField field; 1699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->sfieldCount = count; 1701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->sfields = 1702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (StaticField*) calloc(count, sizeof(StaticField)); 1703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataField(&pEncodedData, &field, &lastIndex); 1705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadSFieldFromDex(newClass, &field, &newClass->sfields[i]); 1706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->instanceFieldsSize != 0) { 1710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->instanceFieldsSize; 1711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexField field; 1713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->ifieldCount = count; 1715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->ifields = (InstField*) dvmLinearAlloc(classLoader, 1716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(InstField)); 1717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataField(&pEncodedData, &field, &lastIndex); 1719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadIFieldFromDex(newClass, &field, &newClass->ifields[i]); 1720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->ifields); 1722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* load method definitions */ 1725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->directMethodsSize != 0) { 1727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->directMethodsSize; 1728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexMethod method; 1730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->directMethodCount = count; 1732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->directMethods = (Method*) dvmLinearAlloc(classLoader, 1733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(Method)); 1734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataMethod(&pEncodedData, &method, &lastIndex); 1736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadMethodFromDex(newClass, &method, &newClass->directMethods[i]); 1737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->directMethods); 1739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->virtualMethodsSize != 0) { 1742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->virtualMethodsSize; 1743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexMethod method; 1745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->virtualMethodCount = count; 1747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->virtualMethods = (Method*) dvmLinearAlloc(classLoader, 1748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(Method)); 1749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataMethod(&pEncodedData, &method, &lastIndex); 1751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadMethodFromDex(newClass, &method, &newClass->virtualMethods[i]); 1752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->virtualMethods); 1754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->sourceFile = dexGetSourceFile(pDexFile, pClassDef); 1757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->status = CLASS_LOADED; 1758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* caller must call dvmReleaseTrackedAlloc */ 1760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return newClass; 1761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Try to load the indicated class from the specified DEX file. 1765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This is effectively loadClass()+defineClass() for a DexClassDef. The 1767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loading was largely done when we crunched through the DEX. 1768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns NULL on failure. If we locate the class but encounter an error 1770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * while processing it, an appropriate exception is thrown. 1771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex(DvmDex* pDvmDex, 1773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, Object* classLoader) 1774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result; 1776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexClassDataHeader header; 1777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u1* pEncodedData; 1778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFile* pDexFile; 1779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((pDvmDex != NULL) && (pClassDef != NULL)); 1781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = pDvmDex->pDexFile; 1782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) { 1784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: loading '%s'...\n", 1785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexGetClassDescriptor(pDexFile, pClassDef)); 1786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pEncodedData = dexGetClassData(pDexFile, pClassDef); 1789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pEncodedData != NULL) { 1791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataHeader(&pEncodedData, &header); 1792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Provide an all-zeroes header for the rest of the loading. 1794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memset(&header, 0, sizeof(header)); 1795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = loadClassFromDex0(pDvmDex, pClassDef, &header, pEncodedData, 1798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project classLoader); 1799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass && (result != NULL)) { 1801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("[Loaded %s from DEX %p (cl=%p)]\n", 1802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result->descriptor, pDvmDex, classLoader); 1803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 1806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free anything in a ClassObject that was allocated on the system heap. 1810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The ClassObject itself is allocated on the GC heap, so we leave it for 1812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the garbage collector. 1813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: this may be called with a partially-constructed object. 1815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: there is no particular ordering imposed, so don't go poking at 1816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclasses. 1817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmFreeClassInnards(ClassObject* clazz) 1819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void *tp; 1821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 1822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) 1824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 1825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.classJavaLangClass || 1827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->obj.clazz == gDvm.unlinkedJavaLangClass); 1828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Guarantee that dvmFreeClassInnards can be called on a given 1830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class multiple times by clearing things out as we free them. 1831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't make any attempt at real atomicity here; higher 1832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * levels need to make sure that no two threads can free the 1833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * same ClassObject at the same time. 1834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: maybe just make it so the GC will never free the 1836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * innards of an already-freed class. 1837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: this #define isn't MT-safe -- the compiler could rearrange it. 1839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define NULL_AND_FREE(p) \ 1841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { \ 1842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((p) != NULL) { \ 1843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tp = (p); \ 1844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (p) = NULL; \ 1845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(tp); \ 1846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } \ 1847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } while (0) 1848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define NULL_AND_LINEAR_FREE(p) \ 1849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { \ 1850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((p) != NULL) { \ 1851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tp = (p); \ 1852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (p) = NULL; \ 1853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, tp); \ 1854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } \ 1855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } while (0) 1856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* arrays just point at Object's vtable; don't free vtable in this case. 1858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmIsArrayClass() checks clazz->descriptor, so we have to do this check 1859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * before freeing the name. 1860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = -1; 1862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsArrayClass(clazz)) { 1863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = NULL; 1864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->vtable); 1866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor = NULL; 1869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_FREE(clazz->descriptorAlloc); 1870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->directMethods != NULL) { 1872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *directMethods = clazz->directMethods; 1873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int directMethodCount = clazz->directMethodCount; 1874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->directMethods = NULL; 1875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->directMethodCount = -1; 1876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < directMethodCount; i++) { 1877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeMethodInnards(&directMethods[i]); 1878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, directMethods); 1880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->virtualMethods != NULL) { 1882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *virtualMethods = clazz->virtualMethods; 1883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int virtualMethodCount = clazz->virtualMethodCount; 1884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount = -1; 1885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods = NULL; 1886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < virtualMethodCount; i++) { 1887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeMethodInnards(&virtualMethods[i]); 1888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, virtualMethods); 1890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initiatingLoaderCount = -1; 1893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_FREE(clazz->initiatingLoaders); 1894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaceCount = -1; 1896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->interfaces); 1897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftableCount = -1; 1899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->iftable); 1900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPoolCount = -1; 1902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->ifviPool); 1903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->sfieldCount = -1; 1905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_FREE(clazz->sfields); 1906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldCount = -1; 1908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->ifields); 1909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#undef NULL_AND_FREE 1911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#undef NULL_AND_LINEAR_FREE 1912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free anything in a Method that was allocated on the system heap. 1916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeMethodInnards(Method* meth) 1918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if 0 1920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->exceptions); 1921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->lines); 1922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->locals); 1923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#else 1924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // TODO: call dvmFreeRegisterMap() if meth->registerMap was allocated 1925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // on the system heap 1926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project UNUSED_PARAMETER(meth); 1927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Clone a Method, making new copies of anything that will be freed up 1932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by freeMethodInnards(). 1933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void cloneMethod(Method* dst, const Method* src) 1935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(dst, src, sizeof(Method)); 1937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if 0 1938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* for current usage, these are never set, so no need to implement copy */ 1939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dst->exceptions == NULL); 1940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dst->lines == NULL); 1941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dst->locals == NULL); 1942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pull the interesting pieces out of a DexMethod. 1947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The DEX file isn't going anywhere, so we don't need to make copies of 1949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the code area. 1950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadMethodFromDex(ClassObject* clazz, const DexMethod* pDexMethod, 1952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth) 1953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile = clazz->pDvmDex->pDexFile; 1955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexMethodId* pMethodId; 1956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexCode* pDexCode; 1957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pMethodId = dexGetMethodId(pDexFile, pDexMethod->methodIdx); 1959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name = dexStringById(pDexFile, pMethodId->nameIdx); 1961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexProtoSetFromMethodId(&meth->prototype, pDexFile, pMethodId); 1962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->shorty = dexProtoGetShorty(&meth->prototype); 1963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags = pDexMethod->accessFlags; 1964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->clazz = clazz; 1965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->jniArgInfo = 0; 1966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareNameDescriptorAndMethod("finalize", "()V", meth) == 0) { 1968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 1969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexCode = dexGetCode(pDexFile, pDexMethod); 1972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDexCode != NULL) { 1973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* integer constants, copy over for faster access */ 1974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->registersSize = pDexCode->registersSize; 1975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->insSize = pDexCode->insSize; 1976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->outsSize = pDexCode->outsSize; 1977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* pointer to code area */ 1979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->insns = pDexCode->insns; 1980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't have a DexCode block, but we still want to know how 1983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * much space is needed for the arguments (so we don't have to 1984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compute it later). We also take this opportunity to compute 1985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * JNI argument info. 1986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We do this for abstract methods as well, because we want to 1988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be able to substitute our exception-throwing "stub" in. 1989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int argsSize = dvmComputeMethodArgsSize(meth); 1991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsStaticMethod(meth)) 1992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project argsSize++; 1993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->registersSize = meth->insSize = argsSize; 1994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->outsSize == 0); 1995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->insns == NULL); 1996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsNativeMethod(meth)) { 1998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc = dvmResolveNativeMethod; 1999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->jniArgInfo = computeJniArgInfo(&meth->prototype); 2000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * jniArgInfo (32-bit int) layout: 2006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * SRRRHHHH HHHHHHHH HHHHHHHH HHHHHHHH 2007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * S - if set, do things the hard way (scan the signature) 2009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * R - return-type enumeration 2010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * H - target-specific hints 2011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This info is used at invocation time by dvmPlatformInvoke. In most 2013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * cases, the target-specific hints allow dvmPlatformInvoke to avoid 2014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * having to fully parse the signature. 2015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The return-type bits are always set, even if target-specific hint bits 2017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * are unavailable. 2018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int computeJniArgInfo(const DexProto* proto) 2020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* sig = dexProtoGetShorty(proto); 2022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int returnType, padFlags, jniArgInfo; 2023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char sigByte; 2024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int stackOffset, padMask; 2025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hints; 2026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* The first shorty character is the return type. */ 2028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (*(sig++)) { 2029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'V': 2030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_VOID; 2031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'F': 2033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_FLOAT; 2034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'D': 2036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_DOUBLE; 2037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'J': 2039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_S8; 2040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 2042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_S4; 2043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project jniArgInfo = returnType << DALVIK_JNI_RETURN_SHIFT; 2047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hints = dvmPlatformInvokeHints(proto); 2049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (hints & DALVIK_JNI_NO_ARG_INFO) { 2051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project jniArgInfo |= DALVIK_JNI_NO_ARG_INFO; 2052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((hints & DALVIK_JNI_RETURN_MASK) == 0); 2054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project jniArgInfo |= hints; 2055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return jniArgInfo; 2058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load information about a static field. 2062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This also "prepares" static fields by initializing them 2064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to their "standard default values". 2065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadSFieldFromDex(ClassObject* clazz, 2067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexSField, StaticField* sfield) 2068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFieldId* pFieldId; 2071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFieldId = dexGetFieldId(pDexFile, pDexSField->fieldIdx); 2073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.clazz = clazz; 2075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.name = dexStringById(pDexFile, pFieldId->nameIdx); 2076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.signature = dexStringByTypeIdx(pDexFile, pFieldId->typeIdx); 2077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.accessFlags = pDexSField->accessFlags; 2078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Static object field values are set to "standard default values" 2080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (null or 0) until the class is initialized. We delay loading 2081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * constant values from the class until that time. 2082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //sfield->value.j = 0; 2084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(sfield->value.j == 0LL); // cleared earlier with calloc 2085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef PROFILE_FIELD_ACCESS 2087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.gets = sfield->field.puts = 0; 2088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load information about an instance field. 2093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadIFieldFromDex(ClassObject* clazz, 2095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexIField, InstField* ifield) 2096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFieldId* pFieldId; 2099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFieldId = dexGetFieldId(pDexFile, pDexIField->fieldIdx); 2101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.clazz = clazz; 2103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.name = dexStringById(pDexFile, pFieldId->nameIdx); 2104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.signature = dexStringByTypeIdx(pDexFile, pFieldId->typeIdx); 2105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.accessFlags = pDexIField->accessFlags; 2106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifndef NDEBUG 2107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(ifield->byteOffset == 0); // cleared earlier with calloc 2108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->byteOffset = -1; // make it obvious if we fail to set later 2109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef PROFILE_FIELD_ACCESS 2112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.gets = ifield->field.puts = 0; 2113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache java.lang.ref.Reference fields and methods. 2118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool precacheReferenceOffsets(ClassObject *clazz) 2120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *meth; 2122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We trick the GC object scanner by not counting 2125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java.lang.ref.Reference.referent as an object 2126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field. It will get explicitly scanned as part 2127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of the reference-walking process. 2128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the object field named "referent" and put it 2130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * just after the list of object reference fields. 2131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->ifields); 2133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldRefCount; i++) { 2134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField *pField = &clazz->ifields[i]; 2135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(pField->field.name, "referent") == 0) { 2136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int targetIndex; 2137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Swap this field with the last object field. 2139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project targetIndex = clazz->ifieldRefCount - 1; 2141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != targetIndex) { 2142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField *swapField = &clazz->ifields[targetIndex]; 2143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField tmpField; 2144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int tmpByteOffset; 2145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* It's not currently strictly necessary 2147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for the fields to be in byteOffset order, 2148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but it's more predictable that way. 2149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmpByteOffset = swapField->byteOffset; 2151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField->byteOffset = pField->byteOffset; 2152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = tmpByteOffset; 2153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmpField = *swapField; 2155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *swapField = *pField; 2156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pField = tmpField; 2157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* One fewer object field (wink wink). 2160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount--; 2162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i--; /* don't trip "didn't find it" test if field was last */ 2163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifields); 2167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i == clazz->ifieldRefCount) { 2168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to reorder 'referent' in %s\n", clazz->descriptor); 2169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 2170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Cache pretty much everything about Reference so that 2173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we don't need to call interpreted code when clearing/enqueueing 2174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * references. This is fragile, so we'll be paranoid. 2175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangRefReference = clazz; 2177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_referent = 2179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "referent", "Ljava/lang/Object;"); 2181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_referent >= 0); 2182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_queue = 2184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "queue", "Ljava/lang/ref/ReferenceQueue;"); 2186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_queue >= 0); 2187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_queueNext = 2189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "queueNext", "Ljava/lang/ref/Reference;"); 2191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_queueNext >= 0); 2192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_vmData = 2194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "vmData", "I"); 2196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_vmData >= 0); 2197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if FANCY_REFERENCE_SUBCLASS 2199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = dvmFindVirtualMethodByDescriptor(clazz, "clear", "()V"); 2200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth != NULL); 2201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.voffJavaLangRefReference_clear = meth->methodIndex; 2202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = dvmFindVirtualMethodByDescriptor(clazz, "enqueue", "()Z"); 2204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth != NULL); 2205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.voffJavaLangRefReference_enqueue = meth->methodIndex; 2206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#else 2207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* enqueueInternal() is private and thus a direct method. */ 2208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = dvmFindDirectMethodByDescriptor(clazz, "enqueueInternal", "()Z"); 2209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth != NULL); 2210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.methJavaLangRefReference_enqueueInternal = meth; 2211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 2214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Link (prepare and resolve). Verification is deferred until later. 2219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This converts symbolic references into pointers. It's independent of 2221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the source file format. 2222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If "classesResolved" is false, we assume that superclassIdx and 2224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interfaces[] are holding class reference indices rather than pointers. 2225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class references will be resolved during link. (This is done when 2226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loading from DEX to avoid having to create additional storage to pass 2227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the indices around.) 2228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "false" with an exception pending on failure. 2230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmLinkClass(ClassObject* clazz, bool classesResolved) 2232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 superclassIdx = 0; 2234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool okay = false; 2235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool resolve_okay; 2236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int numInterfacesResolved = 0; 2237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) 2240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: linking '%s'...\n", clazz->descriptor); 2241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* "Resolve" the class. 2243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * At this point, clazz's reference fields contain Dex 2245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * file indices instead of direct object references. 2246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We need to translate those indices into real references, 2247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * while making sure that the GC doesn't sweep any of 2248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the referenced objects. 2249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The GC will avoid scanning this object as long as 2251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * clazz->obj.clazz is gDvm.unlinkedJavaLangClass. 2252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Once clazz is ready, we'll replace clazz->obj.clazz 2253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with gDvm.classJavaLangClass to let the GC know 2254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to look at it. 2255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.unlinkedJavaLangClass); 2257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* It's important that we take care of java.lang.Class 2259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * first. If we were to do this after looking up the 2260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass (below), Class wouldn't be ready when 2261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java.lang.Object needed it. 2262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note that we don't set clazz->obj.clazz yet. 2264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangClass == NULL) { 2266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->classLoader == NULL && 2267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project strcmp(clazz->descriptor, "Ljava/lang/Class;") == 0) 2268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangClass = clazz; 2270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangClass = 2272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindSystemClassNoInit("Ljava/lang/Class;"); 2273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangClass == NULL) { 2274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* should have thrown one */ 2275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 2276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.classJavaLangClass != NULL); 2281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Resolve all Dex indices so we can hand the ClassObject 2284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * over to the GC. If we fail at any point, we need to remove 2285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * any tracked references to avoid leaking memory. 2286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * All classes have a direct superclass, except for java/lang/Object. 2290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!classesResolved) { 2292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superclassIdx = (u4) clazz->super; /* unpack temp store */ 2293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super = NULL; 2294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, "Ljava/lang/Object;") == 0) { 2296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(!classesResolved); 2297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (superclassIdx != kDexNoIndex) { 2298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* TODO: is this invariant true for all java/lang/Objects, 2299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * regardless of the class loader? For now, assume it is. 2300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/ClassFormatError;", 2302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "java.lang.Object has a superclass"); 2303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Don't finalize objects whose classes use the 2307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * default (empty) Object.finalize(). 2308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLEAR_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!classesResolved) { 2312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (superclassIdx == kDexNoIndex) { 2313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 2314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "no superclass defined"); 2315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super = dvmResolveClass(clazz, superclassIdx, false); 2318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super == NULL) { 2319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 2320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.optimizing) { 2321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* happens with "external" libs */ 2322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Unable to resolve superclass of %s (%d)\n", 2323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, superclassIdx); 2324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Unable to resolve superclass of %s (%d)\n", 2326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, superclassIdx); 2327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* verify */ 2332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsFinalClass(clazz->super)) { 2333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' is final '%s'\n", 2334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IncompatibleClassChangeError;", 2336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass is final"); 2337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (dvmIsInterfaceClass(clazz->super)) { 2339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' is interface '%s'\n", 2340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IncompatibleClassChangeError;", 2342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass is an interface"); 2343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (!dvmCheckClassAccess(clazz, clazz->super)) { 2345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' (%s) is not accessible\n", 2346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IllegalAccessError;", 2348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass not accessible"); 2349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Don't let the GC reclaim the superclass. 2353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: shouldn't be needed; remove when things stabilize 2354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc((Object *)clazz->super, NULL); 2356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Inherit finalizability from the superclass. If this 2358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class also overrides finalize(), its CLASS_ISFINALIZABLE 2359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bit will already be set. 2360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz->super, CLASS_ISFINALIZABLE)) { 2362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* See if this class descends from java.lang.Reference 2366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and set the class flags appropriately. 2367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz->super, CLASS_ISREFERENCE)) { 2369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 superRefFlags; 2370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We've already determined the reference type of this 2372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * inheritance chain. Inherit reference-ness from the superclass. 2373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superRefFlags = GET_CLASS_FLAG_GROUP(clazz->super, 2375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISREFERENCE | 2376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISWEAKREFERENCE | 2377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISPHANTOMREFERENCE); 2378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, superRefFlags); 2379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (clazz->classLoader == NULL && 2380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super->classLoader == NULL && 2381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project strcmp(clazz->super->descriptor, 2382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/Reference;") == 0) 2383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 refFlags; 2385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This class extends Reference, which means it should 2387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be one of the magic Soft/Weak/PhantomReference classes. 2388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags = CLASS_ISREFERENCE; 2390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, 2391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/SoftReference;") == 0) 2392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Only CLASS_ISREFERENCE is set for soft references. 2394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (strcmp(clazz->descriptor, 2396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/WeakReference;") == 0) 2397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags |= CLASS_ISWEAKREFERENCE; 2399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (strcmp(clazz->descriptor, 2400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/PhantomReference;") == 0) 2401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags |= CLASS_ISPHANTOMREFERENCE; 2403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* No-one else is allowed to inherit directly 2405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * from Reference. 2406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project//xxx is this the right exception? better than an assertion. 2408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 2409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "illegal inheritance from Reference"); 2410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* The class should not have any reference bits set yet. 2414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(GET_CLASS_FLAG_GROUP(clazz, 2416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISREFERENCE | 2417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISWEAKREFERENCE | 2418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISPHANTOMREFERENCE) == 0); 2419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, refFlags); 2421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!classesResolved && clazz->interfaceCount > 0) { 2425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Resolve the interfaces implemented directly by this class. We 2427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stuffed the class index into the interface pointer slot. 2428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->interfaces); 2430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->interfaceCount; i++) { 2431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 interfaceIdx; 2432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project interfaceIdx = (u4) clazz->interfaces[i]; /* unpack temp store */ 2434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(interfaceIdx != kDexNoIndex); 2435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaces[i] = dvmResolveClass(clazz, interfaceIdx, false); 2437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->interfaces[i] == NULL) { 2438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 2441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* classDescriptor; 2444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project classDescriptor = dexStringByTypeIdx(pDexFile, interfaceIdx); 2445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.optimizing) { 2446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* happens with "external" libs */ 2447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Failed resolving %s interface %d '%s'\n", 2448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, interfaceIdx, classDescriptor); 2449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Failed resolving %s interface %d '%s'\n", 2451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, interfaceIdx, classDescriptor); 2452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_during_resolve; 2454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* are we allowed to implement this interface? */ 2457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmCheckClassAccess(clazz, clazz->interfaces[i])) { 2458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Interface '%s' is not accessible to '%s'\n", 2460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaces[i]->descriptor, clazz->descriptor); 2461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IllegalAccessError;", 2462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "interface not accessible"); 2463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_during_resolve; 2464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Don't let the GC reclaim the interface class. 2467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: shouldn't be needed; remove when things stabilize 2468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc((Object *)clazz->interfaces[i], NULL); 2470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project numInterfacesResolved++; 2471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("+++ found interface '%s'\n", 2473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaces[i]->descriptor); 2474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The ClassObject is now in a GC-able state. We let the GC 2480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * realize this by punching in the real class type, which is 2481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * always java.lang.Class. 2482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * After this line, clazz will be fair game for the GC. 2484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Every field that the GC will look at must now be valid: 2485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * - clazz->super 2486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * - class->classLoader 2487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * - clazz->sfields 2488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * - clazz->interfaces 2489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->obj.clazz = gDvm.classJavaLangClass; 2491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false) { 2493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_during_resolve: 2494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project resolve_okay = false; 2495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project resolve_okay = true; 2497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Now that the GC can scan the ClassObject, we can let 2501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * go of the explicit references we were holding onto. 2502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Either that or we failed, in which case we need to 2504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * release the references so we don't leak memory. 2505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object *)clazz->super, NULL); 2508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < numInterfacesResolved; i++) { 2510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object *)clazz->interfaces[i], NULL); 2511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!resolve_okay) { 2514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGW("resolve_okay is false\n"); 2515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Populate vtable. 2520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz)) { 2522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* no vtable; just set the method indices */ 2523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = clazz->virtualMethodCount; 2524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (count != (u2) count) { 2526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in interface '%s'\n", count, 2527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 2532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) 2534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].methodIndex = (u2) i; 2535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 2537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!createVtable(clazz)) { 2539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("failed creating vtable\n"); 2540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Populate interface method tables. Can alter the vtable. 2546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!createIftable(clazz)) 2548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Insert special-purpose "stub" method implementations. 2552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!insertMethodStubs(clazz)) 2554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compute instance field offsets and, hence, the size of the object. 2558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!computeFieldOffsets(clazz)) 2560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache fields and methods from java/lang/ref/Reference and 2564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java/lang/Class. This has to happen after computeFieldOffsets(). 2565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->classLoader == NULL) { 2567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, "Ljava/lang/ref/Reference;") == 0) { 2568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!precacheReferenceOffsets(clazz)) { 2569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("failed pre-caching Reference offsets\n"); 2570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/InternalError;", NULL); 2571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (clazz == gDvm.classJavaLangClass) { 2574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangClass_pd = dvmFindFieldOffset(clazz, "pd", 2575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/security/ProtectionDomain;"); 2576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.offJavaLangClass_pd <= 0) { 2577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: unable to find 'pd' field in Class\n"); 2578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); /* we're not going to get much farther */ 2579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //goto bail; 2580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Done! 2586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz, CLASS_ISPREVERIFIED)) 2588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFIED; 2589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 2590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_RESOLVED; 2591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project okay = true; 2592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) 2593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: linked '%s'\n", clazz->descriptor); 2594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We send CLASS_PREPARE events to the debugger from here. The 2597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * definition of "preparation" is creating the static fields for a 2598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class and initializing them to the standard default values, but not 2599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * executing any code (that comes later, during "initialization"). 2600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We did the static prep in loadSFieldFromDex() while loading the class. 2602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class has been prepared and resolved but possibly not yet verified 2604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * at this point. 2605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.debuggerActive) { 2607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDbgPostClassPrepare(clazz); 2608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 2611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!okay) { 2612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 2613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmCheckException(dvmThreadSelf())) { 2614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/VirtualMachineError;", NULL); 2615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return okay; 2618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create the virtual method table. 2622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The top part of the table is a copy of the table from our superclass, 2624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with our local methods overriding theirs. The bottom part of the table 2625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has any new methods we defined. 2626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createVtable(ClassObject* clazz) 2628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool result = false; 2630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int maxCount; 2631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("SUPER METHODS %d %s->%s\n", clazz->super->vtableCount, 2635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->super->descriptor); 2636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* the virtual methods we define, plus the superclass vtable size */ 2639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount = clazz->virtualMethodCount; 2640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount += clazz->super->vtableCount; 2642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* TODO: is this invariant true for all java/lang/Objects, 2644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * regardless of the class loader? For now, assume it is. 2645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(strcmp(clazz->descriptor, "Ljava/lang/Object;") == 0); 2647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGD("+++ max vmethods for '%s' is %d\n", clazz->descriptor, maxCount); 2649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Over-allocate the table, then realloc it down if necessary. So 2652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * long as we don't allocate anything in between we won't cause 2653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fragmentation, and reducing the size should be unlikely to cause 2654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a buffer copy. 2655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 2657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = (Method**) dvmLinearAlloc(clazz->classLoader, 2658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method*) * maxCount); 2659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) 2660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int actualCount; 2664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(clazz->vtable, clazz->super->vtable, 2666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(*(clazz->vtable)) * clazz->super->vtableCount); 2667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project actualCount = clazz->super->vtableCount; 2668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See if any of our virtual methods override the superclass. 2671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++) { 2673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* localMeth = &clazz->virtualMethods[i]; 2674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int si; 2675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (si = 0; si < clazz->super->vtableCount; si++) { 2677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* superMeth = clazz->vtable[si]; 2678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos(localMeth, superMeth) == 0) 2680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* verify */ 2682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsFinalMethod(superMeth)) { 2683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method %s.%s overrides final %s.%s\n", 2684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->clazz->descriptor, localMeth->name, 2685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superMeth->clazz->descriptor, superMeth->name); 2686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[si] = localMeth; 2689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->methodIndex = (u2) si; 2690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ override %s.%s (slot %d)\n", 2691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, localMeth->name, si); 2692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (si == clazz->super->vtableCount) { 2697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* not an override, add to end */ 2698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[actualCount] = localMeth; 2699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->methodIndex = (u2) actualCount; 2700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project actualCount++; 2701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ add method %s.%s\n", 2703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, localMeth->name); 2704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (actualCount != (u2) actualCount) { 2708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in class '%s'\n", actualCount, 2709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(actualCount <= maxCount); 2714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (actualCount < maxCount) { 2716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtable != NULL); 2717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 2718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = dvmLinearRealloc(clazz->classLoader, clazz->vtable, 2719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(*(clazz->vtable)) * actualCount); 2720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) { 2721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("vtable realloc failed\n"); 2722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("+++ reduced vtable from %d to %d\n", 2725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount, actualCount); 2726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = actualCount; 2730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* java/lang/Object case */ 2732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = clazz->virtualMethodCount; 2733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (count != (u2) count) { 2734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in base class '%s'\n", count, 2735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 2740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[i] = &clazz->virtualMethods[i]; 2741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].methodIndex = (u2) i; 2742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = clazz->virtualMethodCount; 2744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 2747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 2749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 2750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 2751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 2752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create and populate "iftable". 2756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The set of interfaces we support is the combination of the interfaces 2758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we implement directly and those implemented by our superclass. Each 2759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interface can have one or more "superinterfaces", which we must also 2760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * support. For speed we flatten the tree out. 2761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We might be able to speed this up when there are lots of interfaces 2763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by merge-sorting the class pointers and binary-searching when removing 2764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * duplicates. We could also drop the duplicate removal -- it's only 2765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * there to reduce the memory footprint. 2766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because of "Miranda methods", this may reallocate clazz->virtualMethods. 2768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" on success. 2770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createIftable(ClassObject* clazz) 2772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool result = false; 2774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapIftable = false; 2775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapVtable = false; 2776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapIfvipool = false; 2777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int ifCount, superIfCount, idx; 2778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) 2781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superIfCount = clazz->super->iftableCount; 2782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 2783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superIfCount = 0; 2784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount = superIfCount; 2786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount += clazz->interfaceCount; 2787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->interfaceCount; i++) 2788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount += clazz->interfaces[i]->iftableCount; 2789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: class '%s' direct w/supra=%d super=%d total=%d\n", 2791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, ifCount - superIfCount, superIfCount, ifCount); 2792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (ifCount == 0) { 2794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->iftableCount == 0); 2795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->iftable == NULL); 2796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 2797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create a table with enough space for all interfaces, and copy the 2802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass' table in. 2803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable = (InterfaceEntry*) dvmLinearAlloc(clazz->classLoader, 2805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(InterfaceEntry) * ifCount); 2806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapIftable = true; 2807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memset(clazz->iftable, 0x00, sizeof(InterfaceEntry) * ifCount); 2808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (superIfCount != 0) { 2809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(clazz->iftable, clazz->super->iftable, 2810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(InterfaceEntry) * superIfCount); 2811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create a flattened interface hierarchy of our immediate interfaces. 2815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx = superIfCount; 2817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->interfaceCount; i++) { 2819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* interf; 2820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 2821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project interf = clazz->interfaces[i]; 2823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(interf != NULL); 2824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* make sure this is still an interface class */ 2826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(interf)) { 2827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Class '%s' implements non-interface '%s'\n", 2828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, interf->descriptor); 2829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage( 2830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/IncompatibleClassChangeError;", 2831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* add entry for this interface */ 2836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[idx++].clazz = interf; 2837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* add entries for the interface's superinterfaces */ 2839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < interf->iftableCount; j++) { 2840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[idx++].clazz = interf->iftable[j].clazz; 2841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(idx == ifCount); 2845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false) { 2847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Remove anything redundant from our recent additions. Note we have 2849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to traverse the recent adds when looking for duplicates, because 2850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it's possible the recent additions are self-redundant. This 2851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * reduces the memory footprint of classes with lots of inherited 2852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interfaces. 2853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (I don't know if this will cause problems later on when we're trying 2855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to find a static field. It looks like the proper search order is 2856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (1) current class, (2) interfaces implemented by current class, 2857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (3) repeat with superclass. A field implemented by an interface 2858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and by a superclass might come out wrong if the superclass also 2859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implements the interface. The javac compiler will reject the 2860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * situation as ambiguous, so the concern is somewhat artificial.) 2861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * UPDATE: this makes ReferenceType.Interfaces difficult to implement, 2863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because it wants to return just the interfaces declared to be 2864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implemented directly by the class. I'm excluding this code for now. 2865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 2867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 2868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < ifCount; j++) { 2870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i == j) 2871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project continue; 2872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->iftable[i].clazz == clazz->iftable[j].clazz) { 2873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: redundant interface %s in %s\n", 2874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->descriptor, 2875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != ifCount-1) 2878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memmove(&clazz->iftable[i], &clazz->iftable[i+1], 2879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (ifCount - i -1) * sizeof(InterfaceEntry)); 2880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount--; 2881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i--; // adjust for i++ above 2882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: class '%s' nodupes=%d\n", clazz->descriptor, ifCount); 2887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } // if (false) 2888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftableCount = ifCount; 2890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we're an interface, we don't need the vtable pointers, so 2893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we're done. If this class doesn't implement an interface that our 2894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass doesn't have, then we again have nothing to do. 2895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz) || superIfCount == ifCount) { 2897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmDumpClass(clazz, kDumpClassFullDetail); 2898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 2899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * When we're handling invokeinterface, we probably have an object 2904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * whose type is an interface class rather than a concrete class. We 2905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * need to convert the method reference into a vtable index. So, for 2906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * every entry in "iftable", we create a list of vtable indices. 2907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because our vtable encompasses the superclass vtable, we can use 2909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the vtable indices from our superclass for all of the interfaces 2910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that weren't directly implemented by us. 2911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Each entry in "iftable" has a pointer to the start of its set of 2913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * vtable offsets. The iftable entries in the superclass point to 2914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * storage allocated in the superclass, and the iftable entries added 2915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for this class point to storage allocated in this class. "iftable" 2916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * is flat for fast access in a class and all of its subclasses, but 2917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "ifviPool" is only created for the topmost implementor. 2918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int poolSize = 0; 2920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 2921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note it's valid for an interface to have no methods (e.g. 2923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java/io/Serializable). 2924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: pool: %d from %s\n", 2926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->virtualMethodCount, 2927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->descriptor); 2928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolSize += clazz->iftable[i].clazz->virtualMethodCount; 2929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (poolSize == 0) { 2932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: didn't find any new interfaces with methods\n"); 2933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 2934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPoolCount = poolSize; 2938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPool = (int*) dvmLinearAlloc(clazz->classLoader, 2939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolSize * sizeof(int*)); 2940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapIfvipool = true; 2941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Fill in the vtable offsets for the interfaces that weren't part of 2944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our superclass. 2945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int poolOffset = 0; 2947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method** mirandaList = NULL; 2948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int mirandaCount = 0, mirandaAlloc = 0; 2949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 2951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* interface; 2952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int methIdx; 2953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray = clazz->ifviPool + poolOffset; 2955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project interface = clazz->iftable[i].clazz; 2956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolOffset += interface->virtualMethodCount; // end here 2957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For each method listed in the interface's method list, find the 2960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * matching method in our class's method list. We want to favor the 2961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * subclass over the superclass, which just requires walking 2962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * back from the end of the vtable. (This only matters if the 2963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass defines a private method and this class redefines 2964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it -- otherwise it would use the same vtable slot. In Dalvik 2965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * those don't end up in the virtual method table, so it shouldn't 2966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * matter which direction we go. We walk it backward anyway.) 2967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Suppose we have the following arrangement: 2970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public interface MyInterface 2971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inInterface(); 2972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public abstract class MirandaAbstract implements MirandaInterface 2973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * //public abstract boolean inInterface(); // not declared! 2974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inAbstract() { stuff } // in vtable 2975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public class MirandClass extends MirandaAbstract 2976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inInterface() { stuff } 2977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inAbstract() { stuff } // in vtable 2978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The javac compiler happily compiles MirandaAbstract even though 2980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it doesn't declare all methods from its interface. When we try 2981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to set up a vtable for MirandaAbstract, we find that we don't 2982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have an slot for inInterface. To prevent this, we synthesize 2983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * abstract method declarations in MirandaAbstract. 2984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We have to expand vtable and update some things that point at it, 2986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * so we accumulate the method list and do it all at once below. 2987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (methIdx = 0; methIdx < interface->virtualMethodCount; methIdx++) { 2989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* imeth = &interface->virtualMethods[methIdx]; 2990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 2991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGVV() { 2993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = dexProtoCopyMethodDescriptor(&imeth->prototype); 2994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: matching '%s' '%s'\n", imeth->name, desc); 2995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 2996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = clazz->vtableCount-1; j >= 0; j--) { 2999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos(imeth, clazz->vtable[j]) 3000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project == 0) 3001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 3002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: matched at %d\n", j); 3003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsPublicMethod(clazz->vtable[j])) { 3004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Implementation of %s.%s is not public\n", 3005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->vtable[j]->name); 3006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IllegalAccessError;", 3007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "interface implementation not public"); 3008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray[methIdx] = j; 3011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (j < 0) { 3015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGV() { 3016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = 3017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexProtoCopyMethodDescriptor(&imeth->prototype); 3018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("No match for '%s' '%s' in '%s' (creating miranda)\n", 3019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, desc, clazz->descriptor); 3020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmThrowException("Ljava/lang/RuntimeException;", "Miranda!"); 3023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //return false; 3024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaCount == mirandaAlloc) { 3026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaAlloc += 8; 3027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaList == NULL) { 3028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList = dvmLinearAlloc(clazz->classLoader, 3029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaAlloc * sizeof(Method*)); 3030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, mirandaList); 3032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList = dvmLinearRealloc(clazz->classLoader, 3033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList, mirandaAlloc * sizeof(Method*)); 3034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(mirandaList != NULL); // mem failed + we leaked 3036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * These may be redundant (e.g. method with same name and 3040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * signature declared in two interfaces implemented by the 3041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * same abstract class). We can squeeze the duplicates 3042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * out here. 3043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int mir; 3045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (mir = 0; mir < mirandaCount; mir++) { 3046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos( 3047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mir], imeth) == 0) 3048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 3049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGVV() { 3050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = dexProtoCopyMethodDescriptor( 3051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &imeth->prototype); 3052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA dupe: %s and %s %s%s\n", 3053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mir]->clazz->descriptor, 3054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->clazz->descriptor, 3055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, desc); 3056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* point the iftable at a phantom slot index */ 3063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray[methIdx] = 3064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount + mir; 3065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA: %s points at slot %d\n", 3066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, clazz->vtableCount + mir); 3067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* if non-duplicate among Mirandas, add to Miranda list */ 3069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mir == mirandaCount) { 3070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("MIRANDA: holding '%s' in slot %d\n", 3071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // imeth->name, mir); 3072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mirandaCount++] = imeth; 3073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaCount != 0) { 3079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* newVirtualMethods; 3080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth; 3081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int oldMethodCount, oldVtableCount; 3082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < mirandaCount; i++) { 3084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA %d: %s.%s\n", i, 3085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[i]->clazz->descriptor, mirandaList[i]->name); 3086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We found methods in one or more interfaces for which we do not 3090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have vtable entries. We have to expand our virtualMethods 3091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * table (which might be empty) to hold some new entries. 3092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->virtualMethods == NULL) { 3094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newVirtualMethods = (Method*) dvmLinearAlloc(clazz->classLoader, 3095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method) * (clazz->virtualMethodCount + mirandaCount)); 3096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newVirtualMethods = (Method*) dvmLinearRealloc(clazz->classLoader, 3099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods, 3100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method) * (clazz->virtualMethodCount + mirandaCount)); 3101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newVirtualMethods != clazz->virtualMethods) { 3103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Table was moved in memory. We have to run through the 3105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * vtable and fix the pointers. The vtable entries might be 3106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pointing at superclasses, so we flip it around: run through 3107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * all locally-defined virtual methods, and fix their entries 3108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in the vtable. (This would get really messy if sub-classes 3109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * had already been loaded.) 3110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Reminder: clazz->virtualMethods and clazz->virtualMethodCount 3112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * hold the virtual methods declared by this class. The 3113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method's methodIndex is the vtable index, and is the same 3114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for all sub-classes (and all super classes in which it is 3115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * defined). We're messing with these because the Miranda 3116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stuff makes it look like the class actually has an abstract 3117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method declaration in it. 3118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA fixing vtable pointers\n"); 3120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->vtable); 3121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth = newVirtualMethods; 3122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++, meth++) 3123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[meth->methodIndex] = meth; 3124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 3125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldMethodCount = clazz->virtualMethodCount; 3128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods = newVirtualMethods; 3129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount += mirandaCount; 3130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We also have to expand the vtable. 3135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtable != NULL); 3137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = (Method**) dvmLinearRealloc(clazz->classLoader, 3138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable, 3139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method*) * (clazz->vtableCount + mirandaCount)); 3140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) { 3141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 3142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapVtable = true; 3145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldVtableCount = clazz->vtableCount; 3147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount += mirandaCount; 3148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Now we need to create the fake methods. We clone the abstract 3151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method definition from the interface and then replace a few 3152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * things. 3153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->virtualMethods + oldMethodCount; 3155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < mirandaCount; i++, meth++) { 3156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 3157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cloneMethod(meth, mirandaList[i]); 3158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->clazz = clazz; 3159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags |= ACC_MIRANDA; 3160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->methodIndex = (u2) (oldVtableCount + i); 3161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* point the new vtable entry at the new method */ 3164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[oldVtableCount + i] = meth; 3165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, mirandaList); 3168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, mirandaList); 3169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO? 3174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Sort the interfaces by number of declared methods. All we really 3175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * want is to get the interfaces with zero methods at the end of the 3176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * list, so that when we walk through the list during invoke-interface 3177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we don't examine interfaces that can't possibly be useful. 3178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The set will usually be small, so a simple insertion sort works. 3180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We have to be careful not to change the order of two interfaces 3182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that define the same method. (Not a problem if we only move the 3183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * zero-method interfaces to the end.) 3184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * PROBLEM: 3186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we do this, we will no longer be able to identify super vs. 3187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * current class interfaces by comparing clazz->super->iftableCount. This 3188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * breaks anything that only wants to find interfaces declared directly 3189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by the class (dvmFindStaticFieldHier, ReferenceType.Interfaces, 3190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmDbgOutputAllInterfaces, etc). Need to provide a workaround. 3191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can sort just the interfaces implemented directly by this class, 3193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but that doesn't seem like it would provide much of an advantage. I'm 3194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not sure this is worthwhile. 3195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This has been made largely obsolete by the interface cache mechanism.) 3197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmDumpClass(clazz); 3200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 3204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapIftable) 3205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->iftable); 3206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapVtable) 3207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 3208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapIfvipool) 3209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifviPool); 3210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 3211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Provide "stub" implementations for methods without them. 3216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Currently we provide an implementation for all abstract methods that 3218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * throws an AbstractMethodError exception. This allows us to avoid an 3219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * explicit check for abstract methods in every virtual call. 3220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: for Miranda methods, the method declaration is a clone of what 3222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * was found in the interface class. That copy may already have had the 3223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * function pointer filled in, so don't be surprised if it's not NULL. 3224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: this sets the "native" flag, giving us an "abstract native" method, 3226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * which is nonsensical. Need to make sure that this doesn't escape the 3227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * VM. We can either mask it out in reflection calls, or copy "native" 3228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * into the high 16 bits of accessFlags and check that internally. 3229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool insertMethodStubs(ClassObject* clazz) 3231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 3233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth; 3235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 3236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->virtualMethods; 3238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++, meth++) { 3239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsAbstractMethod(meth)) { 3240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->insns == NULL); 3241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->nativeFunc == NULL || 3242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc == (DalvikBridgeFunc)dvmAbstractMethodStub); 3243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags |= ACC_NATIVE; 3245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc = (DalvikBridgeFunc) dvmAbstractMethodStub; 3246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Swap two instance fields. 3256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic inline void swapField(InstField* pOne, InstField* pTwo) 3258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField swap; 3260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- swap '%s' and '%s'\n", pOne->field.name, pTwo->field.name); 3262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swap = *pOne; 3263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pOne = *pTwo; 3264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pTwo = swap; 3265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Assign instance fields to u4 slots. 3269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The top portion of the instance field area is occupied by the superclass 3271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fields, the bottom by the fields for this class. 3272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "long" and "double" fields occupy two adjacent slots. On some 3274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * architectures, 64-bit quantities must be 64-bit aligned, so we need to 3275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * arrange fields (or introduce padding) to ensure this. We assume the 3276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fields of the topmost superclass (i.e. Object) are 64-bit aligned, so 3277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we can just ensure that the offset is "even". To avoid wasting space, 3278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we want to move non-reference 32-bit fields into gaps rather than 3279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * creating pad words. 3280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In the worst case we will waste 4 bytes, but because objects are 3282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * allocated on >= 64-bit boundaries, those bytes may well be wasted anyway 3283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (assuming this is the most-derived class). 3284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pad words are not represented in the field table, so the field table 3286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * itself does not change size. 3287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The number of field slots determines the size of the object, so we 3289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * set that here too. 3290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This function feels a little more complicated than I'd like, but it 3292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has the property of moving the smallest possible set of fields, which 3293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * should reduce the time required to load a class. 3294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: reference fields *must* come first, or precacheReferenceOffsets() 3296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * will break. 3297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool computeFieldOffsets(ClassObject* clazz) 3299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int fieldOffset; 3301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i, j; 3302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->ifields); 3304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) 3306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset = clazz->super->objectSize; 3307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 3308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset = offsetof(DataObject, instanceData); 3309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- computeFieldOffsets '%s'\n", clazz->descriptor); 3311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("OFFSETS fieldCount=%d\n", clazz->ifieldCount); 3313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("dataobj, instance: %d\n", offsetof(DataObject, instanceData)); 3314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("classobj, access: %d\n", offsetof(ClassObject, accessFlags)); 3315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("super=%p, fieldOffset=%d\n", clazz->super, fieldOffset); 3316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Start by moving all reference fields to the front. 3319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount = 0; 3321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 3323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') { 3327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This isn't a reference field; see if any reference fields 3328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * follow this one. If so, we'll move it to this position. 3329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (quicksort-style partitioning) 3330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* refField = &clazz->ifields[j--]; 3333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = refField->field.signature[0]; 3334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc == '[' || rc == 'L') { 3336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Here's a reference field that follows at least one 3337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-reference field. Swap it with the current field. 3338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (When this returns, "pField" points to the reference 3339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field, and "refField" points to the non-ref field.) 3340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, refField); 3342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Fix the signature. 3344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project c = rc; 3346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount++; 3348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We may or may not have swapped a field. 3352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This is a reference field. 3355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount++; 3357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we've hit the end of the reference fields, break. 3361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') 3363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset1 '%s'=%d\n", pField->field.name,pField->byteOffset); 3368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Now we want to pack all of the double-wide fields together. If we're 3372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not aligned, though, we want to shuffle one 32-bit field into place. 3373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we can't find one, we'll have to pad it. 3374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != clazz->ifieldCount && (fieldOffset & 0x04) != 0) { 3376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" +++ not aligned\n"); 3377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != 'J' && c != 'D') { 3382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The field that comes next is 32-bit, so just advance past it. 3384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(c != '[' && c != 'L'); 3386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i++; 3389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset2 '%s'=%d\n", 3390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name, pField->byteOffset); 3391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Next field is 64-bit, so search for a 32-bit field we can 3394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * swap into it. 3395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool found = false; 3397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* singleField = &clazz->ifields[j--]; 3400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = singleField->field.signature[0]; 3401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc != 'J' && rc != 'D') { 3403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, singleField); 3404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //c = rc; 3405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" +++ swapped '%s' for alignment\n", 3406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name); 3407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset3 '%s'=%d\n", 3410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name, pField->byteOffset); 3411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = true; 3412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i++; 3413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!found) { 3417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV(" +++ inserting pad field in '%s'\n", clazz->descriptor); 3418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Alignment is good, shuffle any double-wide fields forward, and 3425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finish assigning field offsets to all fields. 3426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(i == clazz->ifieldCount || (fieldOffset & 0x04) == 0); 3428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for ( ; i < clazz->ifieldCount; i++) { 3430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != 'D' && c != 'J') { 3434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This isn't a double-wide field; see if any double fields 3435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * follow this one. If so, we'll move it to this position. 3436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (quicksort-style partitioning) 3437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* doubleField = &clazz->ifields[j--]; 3440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = doubleField->field.signature[0]; 3441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc == 'D' || rc == 'J') { 3443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Here's a double-wide field that follows at least one 3444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-double field. Swap it with the current field. 3445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (When this returns, "pField" points to the reference 3446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field, and "doubleField" points to the non-double field.) 3447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, doubleField); 3449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project c = rc; 3450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We may or may not have swapped a field. 3455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This is a double-wide field, leave it be. 3458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset4 '%s'=%d\n", pField->field.name,pField->byteOffset); 3463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c == 'J' || c == 'D') 3465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifndef NDEBUG 3469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Make sure that all reference fields appear before 3470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-reference fields, and all double-wide fields are aligned. 3471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = 0; // seen non-ref 3473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 3474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField *pField = &clazz->ifields[i]; 3475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c == 'D' || c == 'J') { 3478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((pField->byteOffset & 0x07) == 0); 3479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') { 3482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!j) { 3483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(i == clazz->ifieldRefCount); 3484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = 1; 3485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (j) { 3487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 3488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!j) { 3491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->ifieldRefCount == clazz->ifieldCount); 3492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 3494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We map a C struct directly on top of java/lang/Class objects. Make 3497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sure we left enough room for the instance fields. 3498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != gDvm.classJavaLangClass || (size_t)fieldOffset < 3500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project offsetof(ClassObject, instanceData) + sizeof(clazz->instanceData)); 3501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->objectSize = fieldOffset; 3503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifields); 3505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Throw the VM-spec-mandated error when an exception is thrown during 3510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class initialization. 3511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The safest way to do this is to call the ExceptionInInitializerError 3513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * constructor that takes a Throwable. 3514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * [Do we want to wrap it if the original is an Error rather than 3516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an Exception?] 3517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwClinitError(void) 3519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 3521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* exception; 3522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* eiie; 3523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project exception = dvmGetException(self); 3525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc(exception, self); 3526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(self); 3527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangExceptionInInitializerError == NULL) { 3529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Always resolves to same thing -- no race condition. 3531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangExceptionInInitializerError = 3533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindSystemClass( 3534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ExceptionInInitializerError;"); 3535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangExceptionInInitializerError == NULL) { 3536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to prep java/lang/ExceptionInInitializerError\n"); 3537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.methJavaLangExceptionInInitializerError_init = 3541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindDirectMethodByDescriptor(gDvm.classJavaLangExceptionInInitializerError, 3542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "<init>", "(Ljava/lang/Throwable;)V"); 3543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.methJavaLangExceptionInInitializerError_init == NULL) { 3544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to prep java/lang/ExceptionInInitializerError\n"); 3545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project eiie = dvmAllocObject(gDvm.classJavaLangExceptionInInitializerError, 3550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ALLOC_DEFAULT); 3551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (eiie == NULL) 3552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Construct the new object, and replace the exception with it. 3556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue unused; 3558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, gDvm.methJavaLangExceptionInInitializerError_init, 3559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project eiie, &unused, exception); 3560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetException(self, eiie); 3561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(eiie, NULL); 3562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(exception, self); 3563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfail: /* restore original exception */ 3566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetException(self, exception); 3567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(exception, self); 3568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class failed to initialize on a previous attempt, so we want to throw 3573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a NoClassDefFoundError (v2 2.17.5). The exception to this rule is if we 3574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * failed in verification, in which case v2 5.4.1 says we need to re-throw 3575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the previous error. 3576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwEarlierClassFailure(ClassObject* clazz) 3578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Rejecting re-init on previously-failed class %s v=%p\n", 3580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->verifyErrorClass); 3581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->verifyErrorClass == NULL) { 3583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage("Ljava/lang/NoClassDefFoundError;", 3584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionByClassWithClassMessage(clazz->verifyErrorClass, 3587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Initialize any static fields whose values are stored in 3593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the DEX file. This must be done during class initialization. 3594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void initSFields(ClassObject* clazz) 3596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); /* for dvmReleaseTrackedAlloc() */ 3598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile; 3599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 3600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexEncodedArray* pValueList; 3601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project EncodedArrayIterator iterator; 3602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 3603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->sfieldCount == 0) { 3605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->pDvmDex == NULL) { 3608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* generated class; any static fields should already be set up */ 3609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Not initializing static fields in %s\n", clazz->descriptor); 3610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = clazz->pDvmDex->pDexFile; 3613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDexFile, clazz->descriptor); 3615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pClassDef != NULL); 3616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pValueList = dexGetStaticValuesList(pDexFile, pClassDef); 3618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pValueList == NULL) { 3619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmEncodedArrayIteratorInitialize(&iterator, pValueList, clazz); 3623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Iterate over the initial values array, setting the corresponding 3626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * static field for each array element. 3627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; dvmEncodedArrayIteratorHasNext(&iterator); i++) { 3630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project AnnotationValue value; 3631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool parsed = dvmEncodedArrayIteratorGetNext(&iterator, &value); 3632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StaticField* sfield = &clazz->sfields[i]; 3633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor = sfield->field.signature; 3634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool needRelease = false; 3635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (! parsed) { 3637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: Eventually verification should attempt to ensure 3639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that this can't happen at least due to a data integrity 3640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * problem. 3641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Static initializer parse failed for %s at index %d", 3643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, i); 3644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 3645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Verify that the value we got was of a valid type. */ 3648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (descriptor[0]) { 3650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'Z': parsed = (value.type == kDexAnnotationBoolean); break; 3651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'B': parsed = (value.type == kDexAnnotationByte); break; 3652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'C': parsed = (value.type == kDexAnnotationChar); break; 3653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'S': parsed = (value.type == kDexAnnotationShort); break; 3654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'I': parsed = (value.type == kDexAnnotationInt); break; 3655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'J': parsed = (value.type == kDexAnnotationLong); break; 3656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'F': parsed = (value.type == kDexAnnotationFloat); break; 3657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'D': parsed = (value.type == kDexAnnotationDouble); break; 3658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case '[': parsed = (value.type == kDexAnnotationNull); break; 3659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'L': { 3660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (value.type) { 3661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationNull: { 3662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* No need for further tests. */ 3663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationString: { 3666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = 3667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (strcmp(descriptor, "Ljava/lang/String;") == 0); 3668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project needRelease = true; 3669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationType: { 3672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = 3673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (strcmp(descriptor, "Ljava/lang/Class;") == 0); 3674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project needRelease = true; 3675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: { 3678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = false; 3679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: { 3685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = false; 3686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (parsed) { 3691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * All's well, so store the value. Note: This always 3693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stores the full width of a JValue, even though most of 3694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the time only the first word is needed. 3695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->value = value.value; 3697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (needRelease) { 3698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(value.value.l, self); 3699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Something up above had a problem. TODO: See comment 3703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * above the switch about verfication. 3704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Bogus static initialization: value type %d in field type " 3706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "%s for %s at index %d", 3707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project value.type, descriptor, clazz->descriptor, i); 3708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 3709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Determine whether "descriptor" yields the same class object in the 3716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * context of clazz1 and clazz2. 3717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller must hold gDvm.loadedClasses. 3719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if they match. 3721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool compareDescriptorClasses(const char* descriptor, 3723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz1, const ClassObject* clazz2) 3724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result1; 3726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result2; 3727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Do the first lookup by name. 3730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result1 = dvmFindClassNoInit(descriptor, clazz1->classLoader); 3732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can skip a second lookup by name if the second class loader is 3735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in the initiating loader list of the class object we retrieved. 3736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This means that somebody already did a lookup of this class through 3737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the second loader, and it resolved to the same class.) If it's not 3738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * there, we may simply not have had an opportunity to add it yet, so 3739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we do the full lookup. 3740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The initiating loader test should catch the majority of cases 3742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (in particular, the zillions of references to String/Object). 3743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unfortunately we're still stuck grabbing a mutex to do the lookup. 3745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For this to work, the superclass/interface should be the first 3747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * argument, so that way if it's from the bootstrap loader this test 3748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * will work. (The bootstrap loader, by definition, never shows up 3749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * as the initiating loader of a class defined by some other loader.) 3750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 3752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool isInit = dvmLoaderInInitiatingList(result1, clazz2->classLoader); 3753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 3754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (isInit) { 3756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("%s(obj=%p) / %s(cl=%p): initiating\n", 3757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // result1->descriptor, result1, 3758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz2->descriptor, clazz2->classLoader); 3759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("%s(obj=%p) / %s(cl=%p): RAW\n", 3762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // result1->descriptor, result1, 3763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz2->descriptor, clazz2->classLoader); 3764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result2 = dvmFindClassNoInit(descriptor, clazz2->classLoader); 3765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result1 == NULL || result2 == NULL) { 3768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(dvmThreadSelf()); 3769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result1 == result2) { 3770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Neither class loader could find this class. Apparently it 3772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * doesn't exist. 3773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can either throw some sort of exception now, or just 3775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * assume that it'll fail later when something actually tries 3776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to use the class. For strict handling we should throw now, 3777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because a "tricky" class loader could start returning 3778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * something later, and a pair of "tricky" loaders could set 3779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * us up for confusion. 3780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm not sure if we're allowed to complain about nonexistent 3782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * classes in method signatures during class init, so for now 3783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this will just return "true" and let nature take its course. 3784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* only one was found, so clearly they're not the same */ 3788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 3789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result1 == result2; 3793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For every component in the method descriptor, resolve the class in the 3797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * context of the two classes and compare the results. 3798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For best results, the "superclass" class should be first. 3800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if the classes match, "false" otherwise. 3802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool checkMethodDescriptorClasses(const Method* meth, 3804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz1, const ClassObject* clazz2) 3805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexParameterIterator iterator; 3807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 3808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* walk through the list of parameters */ 3810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexParameterIteratorInit(&iterator, &meth->prototype); 3811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (true) { 3812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexParameterIteratorNextDescriptor(&iterator); 3813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor == NULL) 3815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor[0] == 'L' || descriptor[0] == '[') { 3818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* non-primitive type */ 3819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!compareDescriptorClasses(descriptor, clazz1, clazz2)) 3820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 3821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* check the return type */ 3825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexProtoGetReturnType(&meth->prototype); 3826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor[0] == 'L' || descriptor[0] == '[') { 3827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!compareDescriptorClasses(descriptor, clazz1, clazz2)) 3828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 3829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Validate the descriptors in the superclass and interfaces. 3835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * What we need to do is ensure that the classes named in the method 3837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptors in our ancestors and ourselves resolve to the same class 3838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * objects. The only time this matters is when the classes come from 3839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * different class loaders, and the resolver might come up with a 3840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * different answer for the same class name depending on context. 3841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't need to check to see if an interface's methods match with 3843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * its superinterface's methods, because you can't instantiate an 3844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interface and do something inappropriate with it. If interface I1 3845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * extends I2 and is implemented by C, and I1 and I2 are in separate 3846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class loaders and have conflicting views of other classes, we will 3847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * catch the conflict when we process C. Anything that implements I1 is 3848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * doomed to failure, but we don't need to catch that while processing I1. 3849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, throws an exception and returns "false". 3851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool validateSuperDescriptors(const ClassObject* clazz) 3853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 3855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz)) 3857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Start with the superclass-declared methods. 3861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL && 3863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->classLoader != clazz->super->classLoader) 3864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 3865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Walk through every method declared in the superclass, and 3867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compare resolved descriptor components. We pull the Method 3868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * structs out of the vtable. It doesn't matter whether we get 3869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the struct from the parent or child, since we just need the 3870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * UTF-8 descriptor, which must match. 3871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We need to do this even for the stuff inherited from Object, 3873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because it's possible that the new class loader has redefined 3874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a basic class like String. 3875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* meth; 3877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("Checking %s %p vs %s %p\n", 3879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->classLoader, 3880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->super->descriptor, clazz->super->classLoader); 3881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = clazz->super->vtableCount - 1; i >= 0; i--) { 3882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->vtable[i]; 3883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!checkMethodDescriptorClasses(meth, clazz->super, clazz)) { 3884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method mismatch: %s in %s (cl=%p) and super %s (cl=%p)\n", 3885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name, clazz->descriptor, clazz->classLoader, 3886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super->descriptor, clazz->super->classLoader); 3887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 3888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Classes resolve differently in superclass"); 3889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 3890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Check all interfaces we implement. 3896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->iftableCount; i++) { 3898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const InterfaceEntry* iftable = &clazz->iftable[i]; 3899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->classLoader != iftable->clazz->classLoader) { 3901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* iface = iftable->clazz; 3902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 3903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < iface->virtualMethodCount; j++) { 3905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* meth; 3906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int vtableIndex; 3907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project vtableIndex = iftable->methodIndexArray[j]; 3909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->vtable[vtableIndex]; 3910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!checkMethodDescriptorClasses(meth, iface, clazz)) { 3912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method mismatch: %s in %s (cl=%p) and " 3913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "iface %s (cl=%p)\n", 3914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name, clazz->descriptor, clazz->classLoader, 3915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project iface->descriptor, iface->classLoader); 3916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 3917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Classes resolve differently in interface"); 3918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 3919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns true if the class is being initialized by us (which means that 3929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * calling dvmInitClass will return immediately after fiddling with locks). 3930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * There isn't a race here, because either clazz->initThreadId won't match 3932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * us, or it will and it was set in the same thread. 3933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmIsClassInitializing(const ClassObject* clazz) 3935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (clazz->status == CLASS_INITIALIZING && 3937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId == dvmThreadSelf()->threadId); 3938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If a class has not been initialized, do so by executing the code in 3942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * <clinit>. The sequence is described in the VM spec v2 2.17.5. 3943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It is possible for multiple threads to arrive here simultaneously, so 3945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we need to lock the class while we check stuff. We know that no 3946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interpreted code has access to the class yet, so we can use the class's 3947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * monitor lock. 3948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We will often be called recursively, e.g. when the <clinit> code resolves 3950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * one of its fields, the field resolution will try to initialize the class. 3951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This can get very interesting if a class has a static field initialized 3953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to a new instance of itself. <clinit> will end up calling <init> on 3954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the members it is initializing, which is fine unless it uses the contents 3955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of static fields to initialize instance fields. This will leave the 3956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * static-referenced objects in a partially initialized state. This is 3957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * reasonably rare and can sometimes be cured with proper field ordering. 3958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, returns "false" with an exception raised. 3960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ----- 3962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It is possible to cause a deadlock by having a situation like this: 3964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class A { static { sleep(10000); new B(); } } 3965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class B { static { sleep(10000); new A(); } } 3966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * new Thread() { public void run() { new A(); } }.start(); 3967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * new Thread() { public void run() { new B(); } }.start(); 3968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This appears to be expected under the spec. 3969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The interesting question is what to do if somebody calls Thread.interrupt() 3971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on one of the deadlocked threads. According to the VM spec, they're both 3972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sitting in "wait". Should the interrupt code quietly raise the 3973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "interrupted" flag, or should the "wait" return immediately with an 3974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exception raised? 3975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This gets a little murky. The VM spec says we call "wait", and the 3977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * spec for Thread.interrupt says Object.wait is interruptible. So it 3978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * seems that, if we get unlucky and interrupt class initialization, we 3979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * are expected to throw (which gets converted to ExceptionInInitializerError 3980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * since InterruptedException is checked). 3981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * There are a couple of problems here. First, all threads are expected to 3983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * present a consistent view of class initialization, so we can't have it 3984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fail in one thread and succeed in another. Second, once a class fails 3985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to initialize, it must *always* fail. This means that a stray interrupt() 3986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * call could render a class unusable for the lifetime of the VM. 3987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In most cases -- the deadlock example above being a counter-example -- 3989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the interrupting thread can't tell whether the target thread handled 3990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the initialization itself or had to wait while another thread did the 3991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * work. Refusing to interrupt class initialization is, in most cases, 3992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not something that a program can reliably detect. 3993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On the assumption that interrupting class initialization is highly 3995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * undesirable in most circumstances, and that failing to do so does not 3996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * deviate from the spec in a meaningful way, we don't allow class init 3997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to be interrupted by Thread.interrupt(). 3998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmInitClass(ClassObject* clazz) 4000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool initializedByUs = false; 4003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 4006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method; 4007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmIsClassLinked(clazz) || clazz->status == CLASS_ERROR); 4010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class hasn't been verified yet, do so now. 4013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status < CLASS_VERIFIED) { 4015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we're in an "erroneous" state, throw an exception and bail. 4017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 4020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_RESOLVED); 4024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(!IS_CLASS_FLAG_SET(clazz, CLASS_ISPREVERIFIED)); 4025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classVerifyMode == VERIFY_MODE_NONE || 4027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (gDvm.classVerifyMode == VERIFY_MODE_REMOTE && 4028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->classLoader == NULL)) 4029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 4030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ not verifying class %s (cl=%p)\n", 4031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader); 4032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto noverify; 4033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!gDvm.optimizing) 4036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ late verify on %s\n", clazz->descriptor); 4037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're not supposed to optimize an unverified class, but during 4040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * development this mode was useful. We can't verify an optimized 4041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class because the optimization process discards information. 4042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz, CLASS_ISOPTIMIZED)) { 4044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Class '%s' was optimized without verification; " 4045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "not verifying now\n", 4046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW(" ('rm /data/dalvik-cache/*' and restart to fix this)"); 4048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto verify_failed; 4049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFYING; 4052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmVerifyClass(clazz, VERIFY_DEFAULT)) { 4053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectverify_failed: 4054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage("Ljava/lang/VerifyError;", 4055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->verifyErrorClass = dvmGetException(self)->clazz; 4057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFIED; 4062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectnoverify: 4064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_INITIALIZED) 4066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (clazz->status == CLASS_INITIALIZING) { 4069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* we caught somebody else in the act; was it us? */ 4070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->initThreadId == self->threadId) { 4071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("HEY: found a recursive <clinit>\n"); 4072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("GLITCH: exception pending at start of class init\n"); 4077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 4078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Wait for the other thread to finish initialization. We pass 4082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "false" for the "interruptShouldThrow" arg so it doesn't throw 4083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception on interrupt. 4084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectWait(self, (Object*) clazz, 0, 0, false); 4086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * When we wake up, repeat the test for init-in-progress. If there's 4089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception pending (only possible if "interruptShouldThrow" 4090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * was set), bail out. 4091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Class init of '%s' failing with wait() exception\n", 4094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: this is bogus, because it means the two threads have a 4097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * different idea of the class status. We need to flag the 4098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class as bad and ensure that the initializer thread respects 4099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our notice. If we get lucky and wake up after the class has 4100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finished initialization but before being woken, we have to 4101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * swallow the exception, perhaps raising thread->interrupted 4102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to preserve semantics. 4103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Since we're not currently allowing interrupts, this should 4105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * never happen and we don't need to fix this. 4106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 4108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwClinitError(); 4109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_INITIALIZING) { 4113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Waiting again for class init\n"); 4114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project continue; 4115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_INITIALIZED || 4117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status == CLASS_ERROR); 4118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller wants an exception, but it was thrown in a 4121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * different thread. Synthesize one here. 4122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/UnsatisfiedLinkError;", 4124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "(<clinit> failed, see exception in other thread)"); 4125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* see if we failed previously */ 4130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // might be wise to unlock before throwing; depends on which class 4132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // it is that we have locked 4133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 4135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're ready to go, and have exclusive access to the class. 4140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Before we start initialization, we need to do one extra bit of 4142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * validation: make sure that the methods declared here match up 4143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with our superclass and interfaces. We know that the UTF-8 4144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptors match, but classes from different class loaders can 4145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have the same name. 4146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We do this now, rather than at load/link time, for the same reason 4148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that we defer verification. 4149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It's unfortunate that we need to do this at all, but we risk 4151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * mixing reference types with identical names (see Dalvik test 068). 4152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!validateSuperDescriptors(clazz)) { 4154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 4155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Let's initialize this thing. 4161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We unlock the object so that other threads can politely sleep on 4163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our mutex with Object.wait(), instead of hanging or spinning trying 4164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to grab our mutex. 4165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status < CLASS_INITIALIZING); 4167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // We started initializing. 4170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('+', clazz); 4171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initializedByUs = true; 4172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_INITIALIZING; 4175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = self->threadId; 4176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init our superclass */ 4179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL && clazz->super->status != CLASS_INITIALIZED) { 4180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(!dvmIsInterfaceClass(clazz)); 4181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz->super)) { 4182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 4183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* wake up anybody who started waiting while we were unlocked */ 4185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_notify; 4187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Initialize any static fields whose values are 4191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stored in the Dex file. This should include all of the 4192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * simple "final static" fields, which are required to 4193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be initialized first. (vmspec 2 sec 2.17.5 item 8) 4194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * More-complicated final static fields should be set 4195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * at the beginning of <clinit>; all we can do is trust 4196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that the compiler did the right thing. 4197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initSFields(clazz); 4199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Execute any static initialization code. 4201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method = dvmFindDirectMethodByDescriptor(clazz, "<clinit>", "()V"); 4203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (method == NULL) { 4204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("No <clinit> found for %s\n", clazz->descriptor); 4205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Invoking %s.<clinit>\n", clazz->descriptor); 4207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue unused; 4208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, method, NULL, &unused); 4209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We've had an exception thrown during static initialization. We 4214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * need to throw an ExceptionInInitializerError, but we want to 4215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * tuck the original exception into the "cause" field. 4216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Exception %s thrown during %s.<clinit>\n", 4218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (dvmGetException(self)->clazz)->descriptor, clazz->descriptor); 4219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwClinitError(); 4220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGW("+++ replaced\n"); 4221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* success! */ 4226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_INITIALIZED; 4228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Initialized class: %s\n", clazz->descriptor); 4229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_notify: 4232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Notify anybody waiting on the object. 4234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 4236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_unlock: 4238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (initializedByUs) { 4241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // We finished initializing. 4242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('-', clazz); 4243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (clazz->status != CLASS_ERROR); 4249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Replace method->nativeFunc and method->insns with new values. This is 4253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * performed on resolution of a native method. 4254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetNativeFunc(const Method* method, DalvikBridgeFunc func, 4256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u2* insns) 4257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = method->clazz; 4259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* just open up both; easier that way */ 4261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 4262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->directMethods); 4263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ((Method*)method)->nativeFunc = func; 4265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ((Method*)method)->insns = insns; 4266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 4268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->directMethods); 4269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add a RegisterMap to a Method. This is done when we verify the class 4273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and compute the register maps at class initialization time, which means 4274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that "pMap" is on the heap and should be freed when the Method is 4275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * discarded. 4276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetRegisterMap(Method* method, const RegisterMap* pMap) 4278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = method->clazz; 4280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (method->registerMap != NULL) { 4282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("WARNING: registerMap already set for %s.%s\n", 4283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method->clazz->descriptor, method->name); 4284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* keep going */ 4285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* might be virtual or direct */ 4288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 4289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->directMethods); 4290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method->registerMap = pMap; 4292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 4294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->directMethods); 4295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmHashForeach callback. A nonzero return value causes foreach to 4299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bail out. 4300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int findClassCallback(void* vclazz, void* arg) 4302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = vclazz; 4304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor = (const char*) arg; 4305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, descriptor) == 0) 4307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (int) clazz; 4308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find a loaded class by descriptor. Returns the first one found. 4313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because there can be more than one if class loaders are involved, 4314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this is not an especially good API. (Currently only used by the 4315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * debugger and "checking" JNI.) 4316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "descriptor" should have the form "Ljava/lang/Class;" or 4318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "[Ljava/lang/Class;", i.e. a descriptor and not an internal-form 4319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class name. 4320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindLoadedClass(const char* descriptor) 4322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result; 4324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = dvmHashForeach(gDvm.loadedClasses, findClassCallback, 4327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (void*) descriptor); 4328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (ClassObject*) result; 4331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Retrieve the system (a/k/a application) class loader. 4335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectObject* dvmGetSystemClassLoader(void) 4337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 4339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* getSysMeth; 4340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader; 4341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindSystemClass("Ljava/lang/ClassLoader;"); 4343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) 4344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 4345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project getSysMeth = dvmFindDirectMethodByDescriptor(clazz, "getSystemClassLoader", 4347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "()Ljava/lang/ClassLoader;"); 4348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (getSysMeth == NULL) 4349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 4350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue result; 4352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(dvmThreadSelf(), getSysMeth, NULL, &result); 4353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loader = (Object*)result.l; 4354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return loader; 4355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This is a dvmHashForeach callback. 4360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int dumpClass(void* vclazz, void* varg) 4362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 4364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* super; 4365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int flags = (int) varg; 4366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc; 4367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) { 4370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("dumpClass: ignoring request to dump null class\n"); 4371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((flags & kDumpClassFullDetail) == 0) { 4375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool showInit = (flags & kDumpClassInitialized) != 0; 4376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool showLoader = (flags & kDumpClassClassLoader) != 0; 4377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* initStr; 4378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initStr = dvmIsClassInitialized(clazz) ? "true" : "false"; 4380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (showInit && showLoader) 4382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %p %s\n", clazz->descriptor, clazz->classLoader, initStr); 4383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else if (showInit) 4384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %s\n", clazz->descriptor, initStr); 4385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else if (showLoader) 4386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %p\n", clazz->descriptor, clazz->classLoader); 4387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 4388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s\n", clazz->descriptor); 4389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* clazz->super briefly holds the superclass index during class prep */ 4394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((u4)clazz->super > 0x10000 && (u4) clazz->super != (u4)-1) 4395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super = clazz->super; 4396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 4397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super = NULL; 4398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("----- %s '%s' cl=%p ser=0x%08x -----\n", 4400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmIsInterfaceClass(clazz) ? "interface" : "class", 4401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader, clazz->serialNumber); 4402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" objectSize=%d (%d from super)\n", (int) clazz->objectSize, 4403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super != NULL ? (int) super->objectSize : -1); 4404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" access=0x%04x.%04x\n", clazz->accessFlags >> 16, 4405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->accessFlags & JAVA_FLAGS_MASK); 4406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (super != NULL) 4407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" super='%s' (cl=%p)\n", super->descriptor, super->classLoader); 4408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsArrayClass(clazz)) { 4409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" dimensions=%d elementClass=%s\n", 4410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->arrayDim, clazz->elementClass->descriptor); 4411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->iftableCount > 0) { 4413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" interfaces (%d):\n", clazz->iftableCount); 4414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->iftableCount; i++) { 4415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InterfaceEntry* ent = &clazz->iftable[i]; 4416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 4417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %s (cl=%p)\n", 4419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i, ent->clazz->descriptor, ent->clazz->classLoader); 4420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* enable when needed */ 4422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false && ent->methodIndexArray != NULL) { 4423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < ent->clazz->virtualMethodCount; j++) 4424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %d %s %s\n", 4425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j, ent->methodIndexArray[j], 4426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ent->clazz->virtualMethods[j].name, 4427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[ent->methodIndexArray[j]]->name); 4428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(clazz)) { 4432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" vtable (%d entries, %d in super):\n", clazz->vtableCount, 4433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super != NULL ? super->vtableCount : 0); 4434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->vtableCount; i++) { 4435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor(&clazz->vtable[i]->prototype); 4436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %s%2d: %p %20s %s\n", 4437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (i != clazz->vtable[i]->methodIndex) ? "*** " : "", 4438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (u4) clazz->vtable[i]->methodIndex, clazz->vtable[i], 4439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[i]->name, desc); 4440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" direct methods (%d entries):\n", clazz->directMethodCount); 4443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->directMethodCount; i++) { 4444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor( 4445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &clazz->directMethods[i].prototype); 4446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->directMethods[i].name, 4447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc); 4448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" interface methods (%d):\n", clazz->virtualMethodCount); 4452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++) { 4453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor( 4454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &clazz->virtualMethods[i].prototype); 4455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %2d %20s %s\n", i, 4456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (u4) clazz->virtualMethods[i].methodIndex, 4457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].name, 4458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc); 4459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->sfieldCount > 0) { 4463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" static fields (%d entries):\n", clazz->sfieldCount); 4464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->sfieldCount; i++) { 4465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->sfields[i].field.name, 4466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->sfields[i].field.signature); 4467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->ifieldCount > 0) { 4470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" instance fields (%d entries):\n", clazz->ifieldCount); 4471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 4472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->ifields[i].field.name, 4473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifields[i].field.signature); 4474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of a single class. 4481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pass kDumpClassFullDetail into "flags" to get lots of detail. 4483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpClass(const ClassObject* clazz, int flags) 4485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dumpClass((void*) clazz, (void*) flags); 4487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of all classes. 4491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpAllClasses(int flags) 4493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, dumpClass, (void*) flags); 4496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Get the number of loaded classes 4501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmGetNumLoadedClasses() 4503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count; 4505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count = dvmHashTableNumEntries(gDvm.loadedClasses); 4507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return count; 4509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Write some statistics to the log file. 4513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpLoaderStats(const char* msg) 4515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("VM stats (%s): cls=%d/%d meth=%d ifld=%d sfld=%d linear=%d\n", 4517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project msg, gDvm.numLoadedClasses, dvmHashTableNumEntries(gDvm.loadedClasses), 4518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredMethods, gDvm.numDeclaredInstFields, 4519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredStaticFields, gDvm.pBootLoaderAlloc->curOffset); 4520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef COUNT_PRECISE_METHODS 4521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("GC precise methods: %d\n", 4522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmPointerSetGetCount(gDvm.preciseMethods)); 4523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef PROFILE_FIELD_ACCESS 4527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the field access counts for all fields in this method. 4529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int dumpAccessCounts(void* vclazz, void* varg) 4531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 4533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 4536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Field* field = &clazz->ifields[i].field; 4537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->gets != 0) 4539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("GI %d %s.%s\n", field->gets, 4540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->puts != 0) 4542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("PI %d %s.%s\n", field->puts, 4543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->sfieldCount; i++) { 4546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Field* field = &clazz->sfields[i].field; 4547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->gets != 0) 4549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("GS %d %s.%s\n", field->gets, 4550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->puts != 0) 4552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("PS %d %s.%s\n", field->puts, 4553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the field access counts for all loaded classes. 4561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpFieldAccessCounts(void) 4563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, dumpAccessCounts, NULL); 4566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Mark all classes associated with the built-in loader. 4573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int markClassObject(void *clazz, void *arg) 4575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project UNUSED_PARAMETER(arg); 4577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMarkObjectNonNull((Object *)clazz); 4579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The garbage collector calls this to mark the class objects for all 4584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loaded classes. 4585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmGcScanRootClassLoader() 4587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* dvmClassStartup() may not have been called before the first GC. 4589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.loadedClasses != NULL) { 4591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, markClassObject, NULL); 4593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 4600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Method Prototypes and Descriptors 4601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 4602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare the two method names and prototypes, a la strcmp(). The 4606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * name is considered the "major" order and the prototype the "minor" 4607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * order. The prototypes are compared as if by dvmCompareMethodProtos(). 4608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareMethodNamesAndProtos(const Method* method1, 4610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method2) 4611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(method1->name, method2->name); 4613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareMethodProtos(method1, method2); 4619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare the two method names and prototypes, a la strcmp(), ignoring 4623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the return value. The name is considered the "major" order and the 4624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * prototype the "minor" order. The prototypes are compared as if by 4625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmCompareMethodArgProtos(). 4626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareMethodNamesAndParameterProtos(const Method* method1, 4628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method2) 4629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(method1->name, method2->name); 4631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareMethodParameterProtos(method1, method2); 4637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare a (name, prototype) pair with the (name, prototype) of 4641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a method, a la strcmp(). The name is considered the "major" order and 4642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the prototype the "minor" order. The descriptor and prototype are 4643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compared as if by dvmCompareDescriptorAndMethodProto(). 4644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareNameProtoAndMethod(const char* name, 4646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexProto* proto, const Method* method) 4647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(name, method->name); 4649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dexProtoCompare(proto, &method->prototype); 4655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare a (name, method descriptor) pair with the (name, prototype) of 4659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a method, a la strcmp(). The name is considered the "major" order and 4660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the prototype the "minor" order. The descriptor and prototype are 4661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compared as if by dvmCompareDescriptorAndMethodProto(). 4662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareNameDescriptorAndMethod(const char* name, 4664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor, const Method* method) 4665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(name, method->name); 4667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareDescriptorAndMethodProto(descriptor, method); 4673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4674