Class.cpp revision cab8be0c6e1e9a683402d5a71b037723a6b15bb2
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 1547ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden/* 1557ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden * Class serial numbers start at this value. We use a nonzero initial 1567ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden * value so they stand out in binary dumps (e.g. hprof output). 1577ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden */ 1582c98747b403970ef4b3352e271633f93935b9825Barry Hayes#define INITIAL_CLASS_SERIAL_NUMBER 0x50000000 1597ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden 1607ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden/* 1617ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden * Constant used to size an auxillary class object data structure. 1627ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden * For optimum memory use this should be equal to or slightly larger than 1637ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden * the number of classes loaded when the zygote finishes initializing. 1647ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden */ 1657ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden#define ZYGOTE_CLASS_CUTOFF 2304 1662c98747b403970ef4b3352e271633f93935b9825Barry Hayes 167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassPathEntry* processClassPath(const char* pathStr, bool isBootstrap); 168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeCpeArray(ClassPathEntry* cpe); 169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassFromLoaderNoInit( 171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor, Object* loader); 172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassNoInit(const char* descriptor, Object* loader,\ 173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex); 174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex(DvmDex* pDvmDex, 175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, Object* loader); 176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadMethodFromDex(ClassObject* clazz, const DexMethod* pDexMethod,\ 177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth); 178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int computeJniArgInfo(const DexProto* proto); 179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadSFieldFromDex(ClassObject* clazz, 180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexSField, StaticField* sfield); 181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadIFieldFromDex(ClassObject* clazz, 182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexIField, InstField* field); 183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeMethodInnards(Method* meth); 184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createVtable(ClassObject* clazz); 185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createIftable(ClassObject* clazz); 186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool insertMethodStubs(ClassObject* clazz); 187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool computeFieldOffsets(ClassObject* clazz); 188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwEarlierClassFailure(ClassObject* clazz); 189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Logs information about a class loading with given timestamp. 193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: In the case where we fail in dvmLinkClass() and log the class as closing (type='<'), 195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it would probably be better to use a new type code to indicate the failure. This change would 196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * require a matching change in the parser and analysis code in frameworks/base/tools/preload. 197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void logClassLoadWithTime(char type, ClassObject* clazz, u8 time) { 199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pid_t ppid = getppid(); 200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pid_t pid = getpid(); 201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project unsigned int tid = (unsigned int) pthread_self(); 202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOG(LOG_INFO, "PRELOAD", "%c%d:%d:%d:%s:%d:%s:%lld\n", type, ppid, pid, tid, 204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project get_process_name(), (int) clazz->classLoader, clazz->descriptor, 205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project time); 206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Logs information about a class loading. 210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void logClassLoad(char type, ClassObject* clazz) { 212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoadWithTime(type, clazz, dvmGetThreadCpuTimeNsec()); 213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Some LinearAlloc unit tests. 218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void linearAllocTests() 220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* fiddle; 222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int try = 1; 223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (try) { 225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 0: 226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-28); 227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 1: 230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-24); 231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 2: 234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-20); 235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 3: 238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-16); 239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 4: 242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-12); 243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 896); 247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 20); // watch addr of this alloc 249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 1); 252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'q'; 253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 4096); 255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'x'; 256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[4095] = 'y'; 257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(NULL, fiddle); 259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 0); 260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearRealloc(NULL, fiddle, 12); 262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[11] = 'z'; 263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearRealloc(NULL, fiddle, 5); 265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 17001); 267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'x'; 268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[17000] = 'y'; 269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* str = dvmLinearStrdup(NULL, "This is a test!"); 272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("GOT: '%s'\n", str); 273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearAllocDump(NULL); 275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(NULL, str); 276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Initialize the bootstrap class loader. 280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Call this after the bootclasspath string has been finalized. 282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmClassStartup(void) 284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* unlinkedClass; 286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* make this a requirement -- don't currently support dirs in path */ 288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(gDvm.bootClassPathStr, ".") == 0) { 289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: must specify non-'.' bootclasspath\n"); 290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.loadedClasses = 294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableCreate(256, (HashFreeFunc) dvmFreeClassInnards); 295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.pBootLoaderAlloc = dvmLinearAllocCreate(NULL); 297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.pBootLoaderAlloc == NULL) 298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false) { 301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project linearAllocTests(); 302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project exit(0); 303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class serial number. We start with a high value to make it distinct 307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in binary dumps (e.g. hprof). 308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3092c98747b403970ef4b3352e271633f93935b9825Barry Hayes gDvm.classSerialNumber = INITIAL_CLASS_SERIAL_NUMBER; 310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3112c98747b403970ef4b3352e271633f93935b9825Barry Hayes /* Set up the table we'll use for tracking initiating loaders for 3122c98747b403970ef4b3352e271633f93935b9825Barry Hayes * early classes. 3132c98747b403970ef4b3352e271633f93935b9825Barry Hayes * If it's NULL, we just fall back to the InitiatingLoaderList in the 3142c98747b403970ef4b3352e271633f93935b9825Barry Hayes * ClassObject, so it's not fatal to fail this allocation. 3152c98747b403970ef4b3352e271633f93935b9825Barry Hayes */ 3162c98747b403970ef4b3352e271633f93935b9825Barry Hayes gDvm.initiatingLoaderList = 3172c98747b403970ef4b3352e271633f93935b9825Barry Hayes calloc(ZYGOTE_CLASS_CUTOFF, sizeof(InitiatingLoaderList)); 318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This placeholder class is used while a ClassObject is 320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loading/linking so those not in the know can still say 321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "obj->clazz->...". 322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project unlinkedClass = &gDvm.unlinkedJavaLangClassObject; 324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memset(unlinkedClass, 0, sizeof(*unlinkedClass)); 326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Set obj->clazz to NULL so anyone who gets too interested 328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in the fake class will crash. 329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DVM_OBJECT_INIT(&unlinkedClass->obj, NULL); 331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project unlinkedClass->descriptor = "!unlinkedClass"; 332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetClassSerialNumber(unlinkedClass); 333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.unlinkedJavaLangClass = unlinkedClass; 335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Process the bootstrap class path. This means opening the specified 338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * DEX or Jar files and possibly running them through the optimizer. 339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.bootClassPath == NULL); 341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project processClassPath(gDvm.bootClassPathStr, true); 342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.bootClassPath == NULL) 344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Clean up. 351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmClassShutdown(void) 353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* discard all system-loaded classes */ 357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableFree(gDvm.loadedClasses); 358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.loadedClasses = NULL; 359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* discard primitive classes created for arrays */ 361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < PRIM_MAX; i++) 362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFreeClassInnards(gDvm.primitiveClass[i]); 363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* this closes DEX files, JAR files, etc. */ 365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeCpeArray(gDvm.bootClassPath); 366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = NULL; 367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearAllocDestroy(NULL); 3692c98747b403970ef4b3352e271633f93935b9825Barry Hayes 3702c98747b403970ef4b3352e271633f93935b9825Barry Hayes free(gDvm.initiatingLoaderList); 371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Bootstrap class loader 377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of a ClassPathEntry array. 382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void dumpClassPath(const ClassPathEntry* cpe) 384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int idx = 0; 386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* kindStr; 389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: kindStr = "dir"; break; 392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: kindStr = "jar"; break; 393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: kindStr = "dex"; break; 394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: kindStr = "???"; break; 395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: type=%s %s %p\n", idx, kindStr, cpe->fileName, cpe->ptr); 398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (CALC_CACHE_STATS && cpe->kind == kCpeJar) { 399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex = dvmGetJarFileDex(pJarFile); 401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDumpAtomicCacheStats(pDvmDex->pInterfaceCache); 402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx++; 406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of the bootstrap class path. 411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpBootClassPath(void) 413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dumpClassPath(gDvm.bootClassPath); 415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if the class path contains the specified path. 419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmClassPathContains(const ClassPathEntry* cpe, const char* path) 421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(cpe->fileName, path) == 0) 424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free an array of ClassPathEntry structs. 433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We release the contents of each entry, then free the array itself. 435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeCpeArray(ClassPathEntry* cpe) 437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry* cpeStart = cpe; 439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cpe == NULL) 441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* free JarFile */ 447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmJarFileFree((JarFile*) cpe->ptr); 448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* free RawDexFile */ 451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmRawDexFileFree((RawDexFile*) cpe->ptr); 452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* e.g. kCpeDir */ 455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(cpe->ptr == NULL); 456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpe->fileName); 460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpeStart); 464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Prepare a ClassPathEntry struct, which at this point only has a valid 468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * filename. We need to figure out what kind of file it is, and for 469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * everything other than directories we need to open it up and see 470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * what's inside. 471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool prepareCpe(ClassPathEntry* cpe, bool isBootstrap) 473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = NULL; 475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RawDexFile* pRawDexFile = NULL; 476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project struct stat sb; 477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int cc; 478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cc = stat(cpe->fileName, &sb); 480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cc < 0) { 4811b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden LOGD("Unable to stat classpath element '%s'\n", cpe->fileName); 482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (S_ISDIR(sb.st_mode)) { 485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The directory will usually have .class files in subdirectories, 487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * which may be a few levels down. Doing a recursive scan and 488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * caching the results would help us avoid hitting the filesystem 489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on misses. Whether or not this is of measureable benefit 490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * depends on a number of factors, but most likely it is not 491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * worth the effort (especially since most of our stuff will be 492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in DEX or JAR). 493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeDir; 495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(cpe->ptr == NULL); 496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmJarFileOpen(cpe->fileName, NULL, &pJarFile, isBootstrap) == 0) { 500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeJar; 501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->ptr = pJarFile; 502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // TODO: do we still want to support "raw" DEX files in the classpath? 506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmRawDexFileOpen(cpe->fileName, NULL, &pRawDexFile, isBootstrap) == 0) 507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeDex; 509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->ptr = pRawDexFile; 510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 5131b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden LOGD("Unable to process classpath element '%s'\n", cpe->fileName); 514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Convert a colon-separated list of directories, Zip files, and DEX files 519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * into an array of ClassPathEntry structs. 520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * During normal startup we fail if there are no entries, because we won't 522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * get very far without the basic language support classes, but if we're 523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * optimizing a DEX file we allow it. 5241b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * 5251b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * If entries are added or removed from the bootstrap class path, the 5261b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * dependencies in the DEX files will break, and everything except the 5271b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * very first entry will need to be regenerated. 528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassPathEntry* processClassPath(const char* pathStr, bool isBootstrap) 530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry* cpe = NULL; 532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* mangle; 533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* cp; 534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* end; 535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int idx, count; 536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pathStr != NULL); 538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mangle = strdup(pathStr); 540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Run through and essentially strtok() the string. Get a count of 543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the #of elements while we're at it. 544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the path was constructed strangely (e.g. ":foo::bar:") this will 546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * over-allocate, which isn't ideal but is mostly harmless. 547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count = 1; 549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (cp = mangle; *cp != '\0'; cp++) { 550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*cp == ':') { /* separates two entries */ 551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count++; 552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *cp = '\0'; 553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project end = cp; 556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Allocate storage. We over-alloc by one so we can set an "end" marker. 559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe = (ClassPathEntry*) calloc(count+1, sizeof(ClassPathEntry)); 561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set the global pointer so the DEX file dependency stuff can find it. 564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = cpe; 566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Go through a second time, pulling stuff out. 569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cp = mangle; 571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx = 0; 572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cp < end) { 573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*cp == '\0') { 574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* leading, trailing, or doubled ':'; ignore it */ 575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry tmp; 577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.kind = kCpeUnknown; 578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.fileName = strdup(cp); 579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.ptr = NULL; 580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* drop an end marker here so DEX loader can walk unfinished list */ 582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].kind = kCpeLastEntry; 583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].fileName = NULL; 584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].ptr = NULL; 585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!prepareCpe(&tmp, isBootstrap)) { 587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* drop from list and continue on */ 588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(tmp.fileName); 589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* copy over, pointers and all */ 591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (tmp.fileName[0] != '/') 592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Non-absolute bootclasspath entry '%s'\n", 593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.fileName); 594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx] = tmp; 595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx++; 596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cp += strlen(cp) +1; 600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(idx <= count); 602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (idx == 0 && !gDvm.optimizing) { 603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: no valid entries found in bootclasspath '%s'\n", pathStr); 604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpe); 605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe = NULL; 606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" (filled %d of %d slots)\n", idx, count); 610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* put end marker in over-alloc slot */ 612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].kind = kCpeLastEntry; 613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].fileName = NULL; 614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].ptr = NULL; 615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dumpClassPath(cpe); 617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(mangle); 620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = cpe; 621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return cpe; 622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Search the DEX files we loaded from the bootstrap class path for a DEX 626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * file that has the class with the matching descriptor. 627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns the matching DEX file and DexClassDef entry if found, otherwise 629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * returns NULL. 630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic DvmDex* searchBootPathForClass(const char* descriptor, 632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef** ppClassDef) 633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pFoundDef = NULL; 636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pFoundFile = NULL; 637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("+++ class '%s' not yet loaded, scanning bootclasspath...\n", 639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor); 640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ checking '%s' (%d)\n", cpe->fileName, cpe->kind); 643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: 646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Directory entries ('%s') not supported in bootclasspath\n", 647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->fileName); 648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex; 654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = dvmGetJarFileDex(pJarFile); 656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = pDvmDex; 661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto found; 662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RawDexFile* pRawDexFile = (RawDexFile*) cpe->ptr; 668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex; 670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = dvmGetRawDexFileDex(pRawDexFile); 672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = pDvmDex; 677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto found; 678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unknown kind %d\n", cpe->kind); 683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Special handling during verification + optimization. 692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The DEX optimizer needs to load classes from the DEX file it's working 694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on. Rather than trying to insert it into the bootstrap class path 695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * or synthesizing a class loader to manage it, we just make it available 696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * here. It logically comes after all existing entries in the bootstrap 697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class path. 698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.bootClassPathOptExtra != NULL) { 700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = 703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexFindClass(gDvm.bootClassPathOptExtra->pDexFile, descriptor); 704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = gDvm.bootClassPathOptExtra; 708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfound: 712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *ppClassDef = pFoundDef; 713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return pFoundFile; 714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set the "extra" DEX, which becomes a de facto member of the bootstrap 718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class set. 719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetBootPathExtraDex(DvmDex* pDvmDex) 721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPathOptExtra = pDvmDex; 723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Return the #of entries in the bootstrap class path. 728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (Used for ClassLoader.getResources().) 730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmGetBootPathSize(void) 732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) 736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return cpe - gDvm.bootClassPath; 739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find a resource with the specified name in entry N of the boot class path. 743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We return a newly-allocated String of one of these forms: 745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * file://path/name 746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * jar:file://path!/name 747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Where "path" is the bootstrap class path entry and "name" is the string 748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * passed into this method. "path" needs to be an absolute path (starting 749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with '/'); if it's not we'd need to "absolutify" it as part of forming 750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the URL string. 751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectStringObject* dvmGetBootPathResource(const char* name, int idx) 753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const int kUrlOverhead = 13; // worst case for Jar URL 755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StringObject* urlObj = NULL; 757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ searching for resource '%s' in %d(%s)\n", 759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project name, idx, cpe[idx].fileName); 760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* we could use direct array index, but I don't entirely trust "idx" */ 762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (idx-- && cpe->kind != kCpeLastEntry) 763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cpe->kind == kCpeLastEntry) { 765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char urlBuf[strlen(name) + strlen(cpe->fileName) + kUrlOverhead +1]; 770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: 773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sprintf(urlBuf, "file://%s/%s", cpe->fileName, name); 774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (access(urlBuf+7, F_OK) != 0) 775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dexZipFindEntry(&pJarFile->archive, name) == NULL) 781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sprintf(urlBuf, "jar:file://%s!/%s", cpe->fileName, name); 783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("No resources in DEX files\n"); 787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ using URL='%s'\n", urlBuf); 794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project urlObj = dvmCreateStringFromCstr(urlBuf, ALLOC_DEFAULT); 795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return urlObj; 798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class list management 804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* search for these criteria in the Class hash table */ 808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecttypedef struct ClassMatchCriteria { 809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader; 811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} ClassMatchCriteria; 812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define kInitLoaderInc 4 /* must be power of 2 */ 814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 8152c98747b403970ef4b3352e271633f93935b9825Barry Hayesstatic InitiatingLoaderList *dvmGetInitiatingLoaderList(ClassObject* clazz) 8162c98747b403970ef4b3352e271633f93935b9825Barry Hayes{ 8172c98747b403970ef4b3352e271633f93935b9825Barry Hayes assert(clazz->serialNumber > INITIAL_CLASS_SERIAL_NUMBER); 8182c98747b403970ef4b3352e271633f93935b9825Barry Hayes int classIndex = clazz->serialNumber-INITIAL_CLASS_SERIAL_NUMBER; 8192c98747b403970ef4b3352e271633f93935b9825Barry Hayes if (gDvm.initiatingLoaderList != NULL && 8202c98747b403970ef4b3352e271633f93935b9825Barry Hayes classIndex < ZYGOTE_CLASS_CUTOFF) { 8212c98747b403970ef4b3352e271633f93935b9825Barry Hayes return &(gDvm.initiatingLoaderList[classIndex]); 8222c98747b403970ef4b3352e271633f93935b9825Barry Hayes } else { 8232c98747b403970ef4b3352e271633f93935b9825Barry Hayes return &(clazz->initiatingLoaderList); 8242c98747b403970ef4b3352e271633f93935b9825Barry Hayes } 8252c98747b403970ef4b3352e271633f93935b9825Barry Hayes} 8262c98747b403970ef4b3352e271633f93935b9825Barry Hayes 827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Determine if "loader" appears in clazz' initiating loader list. 829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class hash table lock must be held when calling here, since 831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it's also used when updating a class' initiating loader list. 832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: switch to some sort of lock-free data structure so we don't have 834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to grab the lock to do a lookup. Among other things, this would improve 835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the speed of compareDescriptorClasses(). 836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmLoaderInInitiatingList(const ClassObject* clazz, const Object* loader) 838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The bootstrap class loader can't be just an initiating loader for 841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything (it's always the defining loader if the class is visible 842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to it). We don't put defining loaders in the initiating list. 843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader == NULL) 845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Scan the list for a match. The list is expected to be short. 849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 8502c98747b403970ef4b3352e271633f93935b9825Barry Hayes /* Cast to remove the const from clazz, but use const loaderList */ 8512c98747b403970ef4b3352e271633f93935b9825Barry Hayes ClassObject* nonConstClazz = (ClassObject*) clazz; 8522c98747b403970ef4b3352e271633f93935b9825Barry Hayes const InitiatingLoaderList *loaderList = 8532c98747b403970ef4b3352e271633f93935b9825Barry Hayes dvmGetInitiatingLoaderList(nonConstClazz); 854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 8552c98747b403970ef4b3352e271633f93935b9825Barry Hayes for (i = loaderList->initiatingLoaderCount-1; i >= 0; --i) { 8562c98747b403970ef4b3352e271633f93935b9825Barry Hayes if (loaderList->initiatingLoaders[i] == loader) { 857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("+++ found initiating match %p in %s\n", 858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // loader, clazz->descriptor); 859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add "loader" to clazz's initiating loader set, unless it's the defining 867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class loader. 868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In the common case this will be a short list, so we don't need to do 870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything too fancy here. 871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This locks gDvm.loadedClasses for synchronization, so don't hold it 873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * when calling here. 874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmAddInitiatingLoader(ClassObject* clazz, Object* loader) 876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != clazz->classLoader) { 878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader != NULL); 879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Adding %p to '%s' init list\n", loader, clazz->descriptor); 881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Make sure nobody snuck in. The penalty for adding twice is 885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pretty minor, and probably outweighs the O(n^2) hit for 886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * checking before every add, so we may not want to do this. 887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 8882c98747b403970ef4b3352e271633f93935b9825Barry Hayes //if (dvmLoaderInInitiatingList(clazz, loader)) { 8892c98747b403970ef4b3352e271633f93935b9825Barry Hayes // LOGW("WOW: simultaneous add of initiating class loader\n"); 8902c98747b403970ef4b3352e271633f93935b9825Barry Hayes // goto bail_unlock; 8912c98747b403970ef4b3352e271633f93935b9825Barry Hayes //} 892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The list never shrinks, so we just keep a count of the 895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * number of elements in it, and reallocate the buffer when 896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we run off the end. 897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The pointer is initially NULL, so we *do* want to call realloc 899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * when count==0. 900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 9012c98747b403970ef4b3352e271633f93935b9825Barry Hayes InitiatingLoaderList *loaderList = dvmGetInitiatingLoaderList(clazz); 9022c98747b403970ef4b3352e271633f93935b9825Barry Hayes if ((loaderList->initiatingLoaderCount & (kInitLoaderInc-1)) == 0) { 903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object** newList; 904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 9052c98747b403970ef4b3352e271633f93935b9825Barry Hayes newList = (Object**) realloc(loaderList->initiatingLoaders, 9062c98747b403970ef4b3352e271633f93935b9825Barry Hayes (loaderList->initiatingLoaderCount + kInitLoaderInc) 907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sizeof(Object*)); 908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newList == NULL) { 909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* this is mainly a cache, so it's not the EotW */ 910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 9132c98747b403970ef4b3352e271633f93935b9825Barry Hayes loaderList->initiatingLoaders = newList; 914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("Expanded init list to %d (%s)\n", 9162c98747b403970ef4b3352e271633f93935b9825Barry Hayes // loaderList->initiatingLoaderCount+kInitLoaderInc, 917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor); 918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 9192c98747b403970ef4b3352e271633f93935b9825Barry Hayes loaderList->initiatingLoaders[loaderList->initiatingLoaderCount++] = 9202c98747b403970ef4b3352e271633f93935b9825Barry Hayes loader; 921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_unlock: 923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This is a dvmHashTableLookup callback.) 929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Entries in the class hash table are stored as { descriptor, d-loader } 931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * tuples. If the hashed class descriptor matches the requested descriptor, 932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and the hashed defining class loader matches the requested class 933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader, we're good. If only the descriptor matches, we check to see if the 934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader is in the hashed class' initiating loader list. If so, we 935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * can return "true" immediately and skip some of the loadClass melodrama. 936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller must lock the hash table before calling here. 938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns 0 if a matching entry is found, nonzero otherwise. 940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int hashcmpClassByCrit(const void* vclazz, const void* vcrit) 942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassMatchCriteria* pCrit = (const ClassMatchCriteria*) vcrit; 945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool match; 946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project match = (strcmp(clazz->descriptor, pCrit->descriptor) == 0 && 948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (clazz->classLoader == pCrit->loader || 949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (pCrit->loader != NULL && 950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLoaderInInitiatingList(clazz, pCrit->loader)) )); 951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //if (match) 952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // LOGI("+++ %s %p matches existing %s %p\n", 953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // pCrit->descriptor, pCrit->loader, 954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->classLoader); 955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return !match; 956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Like hashcmpClassByCrit, but passing in a fully-formed ClassObject 960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * instead of a ClassMatchCriteria. 961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int hashcmpClassByClass(const void* vclazz, const void* vaddclazz) 963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* addClazz = (const ClassObject*) vaddclazz; 966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool match; 967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project match = (strcmp(clazz->descriptor, addClazz->descriptor) == 0 && 969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (clazz->classLoader == addClazz->classLoader || 970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (addClazz->classLoader != NULL && 971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLoaderInInitiatingList(clazz, addClazz->classLoader)) )); 972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return !match; 973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Search through the hash table to find an entry with a matching descriptor 977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and an initiating class loader that matches "loader". 978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The table entries are hashed on descriptor only, because they're unique 980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on *defining* class loader, not *initiating* class loader. This isn't 981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * great, because it guarantees we will have to probe when multiple 982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class loaders are used. 983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note this does NOT try to load a class; it just finds a class that 985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has already been loaded. 986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If "unprepOkay" is set, this will return classes that have been added 988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to the hash table but are not yet fully loaded and linked. Otherwise, 989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * such classes are ignored. (The only place that should set "unprepOkay" 990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * is findClassNoInit(), which will wait for the prep to finish.) 991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns NULL if not found. 993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmLookupClass(const char* descriptor, Object* loader, 995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool unprepOkay) 996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassMatchCriteria crit; 998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void* found; 999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash; 1000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project crit.descriptor = descriptor; 1002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project crit.loader = loader; 1003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hash = dvmComputeUtf8Hash(descriptor); 1004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("threadid=%d: dvmLookupClass searching for '%s' %p\n", 1006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThreadSelf()->threadId, descriptor, loader); 1007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = dvmHashTableLookup(gDvm.loadedClasses, hash, &crit, 1010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByCrit, false); 1011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class has been added to the hash table but isn't ready for use. 1015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're going to act like we didn't see it, so that the caller will 1016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * go through the full "find class" path, which includes locking the 1017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * object and waiting until it's ready. We could do that lock/wait 1018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * here, but this is an extremely rare case, and it's simpler to have 1019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the wait-for-class code centralized. 1020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (found != NULL && !unprepOkay && !dvmIsClassLinked(found)) { 1022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Ignoring not-yet-ready %s, using slow path\n", 1023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ((ClassObject*)found)->descriptor); 1024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = NULL; 1025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (ClassObject*) found; 1028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add a new class to the hash table. 1032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class is considered "new" if it doesn't match on both the class 1034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptor and the defining class loader. 1035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: we should probably have separate hash tables for each 1037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ClassLoader. This could speed up dvmLookupClass and 1038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * other common operations. It does imply a VM-visible data structure 1039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for each ClassLoader object with loaded classes, which we don't 1040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have yet. 1041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmAddClassToHash(ClassObject* clazz) 1043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void* found; 1045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash; 1046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hash = dvmComputeUtf8Hash(clazz->descriptor); 1048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = dvmHashTableLookup(gDvm.loadedClasses, hash, clazz, 1051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByClass, true); 1052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ dvmAddClassToHash '%s' %p (isnew=%d) --> %p\n", 1055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader, 1056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (found == (void*) clazz), clazz); 1057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmCheckClassTablePerf(); 1059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* can happen if two threads load the same class simultaneously */ 1061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (found == (void*) clazz); 1062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if 0 1065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compute hash value for a class. 1067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectu4 hashcalcClass(const void* item) 1069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmComputeUtf8Hash(((const ClassObject*) item)->descriptor); 1071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Check the performance of the "loadedClasses" hash table. 1075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmCheckClassTablePerf(void) 1077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableProbeCount(gDvm.loadedClasses, hashcalcClass, 1080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByClass); 1081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Remove a class object from the hash table. 1087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void removeClassFromHash(ClassObject* clazz) 1089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ removeClassFromHash '%s'\n", clazz->descriptor); 1091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash = dvmComputeUtf8Hash(clazz->descriptor); 1093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmHashTableRemove(gDvm.loadedClasses, hash, clazz)) 1096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Hash table remove failed on class '%s'\n", clazz->descriptor); 1097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 1103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class creation 1104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 1105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set clazz->serialNumber to the next available value. 1109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This usually happens *very* early in class creation, so don't expect 1111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything else in the class to be ready. 1112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetClassSerialNumber(ClassObject* clazz) 1114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 oldValue, newValue; 1116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->serialNumber == 0); 1118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { 1120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldValue = gDvm.classSerialNumber; 1121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newValue = oldValue + 1; 1122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } while (!ATOMIC_CMP_SWAP(&gDvm.classSerialNumber, oldValue, newValue)); 1123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->serialNumber = (u4) oldValue; 1125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), using the specified 1130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * initiating ClassLoader. 1131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class will be loaded and initialized if it has not already been. 1133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If necessary, the superclass will be loaded. 1134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class can't be found, returns NULL with an appropriate exception 1136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * raised. 1137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindClass(const char* descriptor, Object* loader) 1139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindClassNoInit(descriptor, loader); 1143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL && clazz->status < CLASS_INITIALIZED) { 1144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* initialize class */ 1145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz)) { 1146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init failed; leave it in the list, marked as bad */ 1147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 1148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_ERROR); 1149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), using the specified 1158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * initiating ClassLoader. 1159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class will be loaded if it has not already been, as will its 1161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass. It will not be initialized. 1162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class can't be found, returns NULL with an appropriate exception 1164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * raised. 1165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindClassNoInit(const char* descriptor, 1167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader) 1168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(descriptor != NULL); 1170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //assert(loader != NULL); 1171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("FindClassNoInit '%s' %p\n", descriptor, loader); 1173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*descriptor == '[') { 1175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Array class. Find in table, generate if not found. 1177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmFindArrayClass(descriptor, loader); 1179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Regular class. Find in table, load if not found. 1182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != NULL) { 1184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassFromLoaderNoInit(descriptor, loader); 1185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmFindSystemClassNoInit(descriptor); 1187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load the named class (by descriptor) from the specified class 1193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader. This calls out to let the ClassLoader object do its thing. 1194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns with NULL and an exception raised on error. 1196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassFromLoaderNoInit(const char* descriptor, 1198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader) 1199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("##### findClassFromLoaderNoInit (%s,%p)\n", 1201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // descriptor, loader); 1202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 1204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader != NULL); 1207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Do we already have it? 1210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class loader code does the "is it already loaded" check as 1212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * well. However, this call is much faster than calling through 1213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interpreted code. Doing this does mean that in the common case 1214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (365 out of 420 calls booting the sim) we're doing the 1215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * lookup-by-descriptor twice. It appears this is still a win, so 1216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm keeping it in. 1217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, false); 1219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL) { 1220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Already loaded: %s %p\n", descriptor, loader); 1221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Not already loaded: %s %p\n", descriptor, loader); 1224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* dotName = NULL; 1227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StringObject* nameObj = NULL; 1228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* excep; 1229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* loadClass; 1230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* convert "Landroid/debug/Stuff;" to "android.debug.Stuff" */ 1232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dotName = dvmDescriptorToDot(descriptor); 1233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dotName == NULL) { 1234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/OutOfMemoryError;", NULL); 1235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project nameObj = dvmCreateStringFromCstr(dotName, ALLOC_DEFAULT); 1238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (nameObj == NULL) { 1239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 1240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // TODO: cache the vtable offset 1244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadClass = dvmFindVirtualMethodHierByDescriptor(loader->clazz, "loadClass", 1245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "(Ljava/lang/String;)Ljava/lang/Class;"); 1246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loadClass == NULL) { 1247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Couldn't find loadClass in ClassLoader\n"); 1248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepBegin(); 1253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Invoke loadClass(). This will probably result in a couple of 1257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exceptions being thrown, because the ClassLoader.loadClass() 1258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implementation eventually calls VMClassLoader.loadClass to see if 1259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the bootstrap class loader can find it before doing its own load. 1260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- Invoking loadClass(%s, %p)\n", dotName, loader); 1262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue result; 1263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, loadClass, loader, &result, nameObj); 1264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = (ClassObject*) result.l; 1265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepEnd(); 1268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project excep = dvmGetException(self); 1271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (excep != NULL) { 1272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if DVM_SHOW_EXCEPTION >= 2 1273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGD("NOTE: loadClass '%s' %p threw exception %s\n", 1274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dotName, loader, excep->clazz->descriptor); 1275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc(excep, self); 1277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(self); 1278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowChainedExceptionWithClassMessage( 1279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/NoClassDefFoundError;", descriptor, excep); 1280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(excep, self); 1281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL); 1285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddInitiatingLoader(clazz, loader); 1288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- Successfully loaded %s %p (thisldr=%p clazz=%p)\n", 1290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, clazz->classLoader, loader, clazz); 1291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 1293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*)nameObj, NULL); 1294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(dotName); 1295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load the named class (by descriptor) from the specified DEX file. 1300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Used by class loaders to instantiate a class object from a 1301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * VM-managed DEX. 1302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmDefineClass(DvmDex* pDvmDex, const char* descriptor, 1304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* classLoader) 1305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pDvmDex != NULL); 1307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassNoInit(descriptor, classLoader, pDvmDex); 1309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), scanning through the 1314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bootclasspath if it hasn't already been loaded. 1315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "descriptor" looks like "Landroid/debug/Stuff;". 1317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Uses NULL as the defining class loader. 1319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindSystemClass(const char* descriptor) 1321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindSystemClassNoInit(descriptor); 1325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL && clazz->status < CLASS_INITIALIZED) { 1326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* initialize class */ 1327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz)) { 1328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init failed; leave it in the list, marked as bad */ 1329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 1330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_ERROR); 1331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), searching for it in the 1340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bootclasspath. 1341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, this returns NULL with an exception raised. 1343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindSystemClassNoInit(const char* descriptor) 1345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassNoInit(descriptor, NULL, NULL); 1347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor). If it's not already loaded, 1351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we load it and link it, but don't execute <clinit>. (The VM has 1352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * specific limitations on which events can cause initialization.) 1353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If "pDexFile" is NULL, we will search the bootclasspath for an entry. 1355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, this returns NULL with an exception raised. 1357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: we need to return an indication of whether we loaded the class or 1359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * used an existing definition. If somebody deliberately tries to load a 1360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class twice in the same class loader, they should get a LinkageError, 1361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but inadvertent simultaneous class references should "just work". 1362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassNoInit(const char* descriptor, Object* loader, 1364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex) 1365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 1367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool profilerNotified = false; 1370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != NULL) { 1373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("#### findClassNoInit(%s,%p,%p)\n", descriptor, loader, 1374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex->pDexFile); 1375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't expect an exception to be raised at this point. The 1379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exception handling code is good about managing this. This *can* 1380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * happen if a JNI lookup fails and the JNI code doesn't do any 1381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * error checking before doing another class lookup, so we may just 1382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * want to clear this and restore it on exit. If we don't, some kinds 1383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of failures can't be detected without rearranging other stuff. 1384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Most often when we hit this situation it means that something is 1386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * broken in the VM or in JNI code, so I'm keeping it in place (and 1387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * making it an informative abort rather than an assert). 1388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 1390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Class lookup %s attemped while exception %s pending\n", 1391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, dvmGetException(self)->clazz->descriptor); 1392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDumpAllThreads(false); 1393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 1394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, true); 1397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) { 1398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 1399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepBegin(); 1402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project profilerNotified = true; 1403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u8 startTime = dvmGetThreadCpuTimeNsec(); 1407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDvmDex == NULL) { 1410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader == NULL); /* shouldn't be here otherwise */ 1411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = searchBootPathForClass(descriptor, &pClassDef); 1412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 1414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDvmDex == NULL || pClassDef == NULL) { 1417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage( 1418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/NoClassDefFoundError;", descriptor); 1419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found a match, try to load it */ 1423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = loadClassFromDex(pDvmDex, pClassDef, loader); 1424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 1425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* class was found but had issues */ 1426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Lock the class while we link it so other threads must wait for us 1432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to finish. Set the "initThreadId" so we can identify recursive 1433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * invocation. 1434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 1436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = self->threadId; 1437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add to hash table so lookups succeed. 1440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * [Are circular references possible when linking a class?] 1442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->classLoader == loader); 1444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmAddClassToHash(clazz)) { 1445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Another thread must have loaded the class after we 1447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * started but before we finished. Discard what we've 1448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * done and leave some hints for the GC. 1449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (Yes, this happens.) 1451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGW("WOW: somebody loaded %s simultaneously\n", descriptor); 1453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = 0; 1454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Let the GC free the class. 1457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.unlinkedJavaLangClass); 1459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Grab the winning class. 1462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, true); 1464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL); 1465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto got_class; 1466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoadWithTime('>', clazz, startTime); 1471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Prepare and resolve. 1474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmLinkClass(clazz, false)) { 1476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 1477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Make note of the error and clean up the class. 1479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project removeClassFromHash(clazz); 1481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 1482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFreeClassInnards(clazz); 1483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Let any waiters know. 1485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = 0; 1487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 1488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOG(LOG_INFO, "DVMLINK FAILED FOR CLASS ", "%s in %s\n", 1492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, get_process_name()); 1493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: It would probably be better to use a new type code here (instead of '<') to 1496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * indicate the failure. This change would require a matching change in the parser 1497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and analysis code in frameworks/base/tools/preload. 1498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('<', clazz); 1500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.optimizing) { 1503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* happens with "external" libs */ 1504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Link of class '%s' failed\n", descriptor); 1505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Link of class '%s' failed\n", descriptor); 1507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 1511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add class stats to global counters. 1515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: these should probably be atomic ops. 1517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numLoadedClasses++; 1519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredMethods += 1520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount + clazz->directMethodCount; 1521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredInstFields += clazz->ifieldCount; 1522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredStaticFields += clazz->sfieldCount; 1523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache pointers to basic classes. We want to use these in 1526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * various places, and it's easiest to initialize them on first 1527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * use rather than trying to force them to initialize (startup 1528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ordering makes it weird). 1529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangObject == NULL && 1531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project strcmp(descriptor, "Ljava/lang/Object;") == 0) 1532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* It should be impossible to get here with anything 1534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but the bootclasspath loader. 1535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader == NULL); 1537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangObject = clazz; 1538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('<', clazz); 1542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectgot_class: 1546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsClassLinked(clazz) && clazz->status != CLASS_ERROR) { 1547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can race with other threads for class linking. We should 1549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * never get here recursively; doing so indicates that two 1550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * classes have circular dependencies. 1551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * One exception: we force discovery of java.lang.Class in 1553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmLinkClass(), and Class has Object as its superclass. So 1554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * if the first thing we ever load is Object, we will init 1555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Object->Class->Object. The easiest way to avoid this is to 1556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ensure that Object is never the first thing we look up, so 1557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we get Foo->Class->Object instead. 1558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 1560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsClassLinked(clazz) && 1561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId == self->threadId) 1562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Recursive link on class %s\n", clazz->descriptor); 1564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage( 1566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ClassCircularityError;", clazz->descriptor); 1567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("WAITING for '%s' (owner=%d)\n", 1571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->initThreadId); 1572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (!dvmIsClassLinked(clazz) && clazz->status != CLASS_ERROR) { 1573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectWait(self, (Object*) clazz, 0, 0, false); 1574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 1578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Somebody else tried to load this and failed. We need to raise 1580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception and report failure. 1581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 1583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* check some invariants */ 1589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmIsClassLinked(clazz)); 1590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.classJavaLangClass != NULL); 1591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.classJavaLangClass); 1592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != gDvm.classJavaLangObject) { 1593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super == NULL) { 1594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Non-Object has no superclass (gDvm.classJavaLangObject=%p)\n", 1595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangObject); 1596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 1597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(clazz)) { 1600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("class=%s vtableCount=%d, virtualMeth=%d\n", 1601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->vtableCount, 1602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->virtualMethodCount); 1603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtableCount >= clazz->virtualMethodCount); 1604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Normally class objects are initialized before we instantiate them, 1608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but we can't do that with java.lang.Class (chicken, meet egg). We 1609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * do it explicitly here. 1610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The verifier could call here to find Class while verifying Class, 1612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * so we need to check for CLASS_VERIFYING as well as !initialized. 1613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == gDvm.classJavaLangClass && !dvmIsClassInitialized(clazz) && 1615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project !(clazz->status == CLASS_VERIFYING)) 1616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ explicitly initializing %s\n", clazz->descriptor); 1618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmInitClass(clazz); 1619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 1622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (profilerNotified) 1624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepEnd(); 1625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL || dvmCheckException(self)); 1627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Helper for loadClassFromDex, which takes a DexClassDataHeader and 1632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * encoded data pointer in addition to the other arguments. 1633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex0(DvmDex* pDvmDex, 1635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, const DexClassDataHeader* pHeader, 1636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u1* pEncodedData, Object* classLoader) 1637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* newClass = NULL; 1639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFile* pDexFile; 1640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 1641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 1642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = pDvmDex->pDexFile; 1644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexGetClassDescriptor(pDexFile, pClassDef); 1645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Make sure the aren't any "bonus" flags set, since we use them for 1648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * runtime state. 1649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((pClassDef->accessFlags & ~EXPECTED_FILE_FLAGS) != 0) { 1651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Invalid file flags in class %s: %04x\n", 1652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, pClassDef->accessFlags); 1653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Allocate storage for the class object on the GC heap, so that other 1658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * objects can have references to it. We bypass the usual mechanism 1659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (allocObject), because we don't have all the bits and pieces yet. 1660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note that we assume that java.lang.Class does not override 1662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finalize(). 1663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass = (ClassObject*) dvmMalloc(sizeof(*newClass), ALLOC_DEFAULT); 1665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newClass == NULL) 1666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Until the class is loaded and linked, use a placeholder 1669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * obj->clazz value as a hint to the GC. We don't want 1670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the GC trying to scan the object while it's full of Idx 1671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * values. Also, the real java.lang.Class may not exist 1672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * yet. 1673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DVM_OBJECT_INIT(&newClass->obj, gDvm.unlinkedJavaLangClass); 1675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetClassSerialNumber(newClass); 1677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->descriptor = descriptor; 1678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(newClass->descriptorAlloc == NULL); 1679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->accessFlags = pClassDef->accessFlags; 1680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->classLoader = classLoader; 1681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->pDvmDex = pDvmDex; 1682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->primitiveType = PRIM_NOT; 1683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Stuff the superclass index into the object pointer field. The linker 1686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pulls it out and replaces it with a resolved ClassObject pointer. 1687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm doing it this way (rather than having a dedicated superclassIdx 1688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field) to save a few bytes of overhead per class. 1689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * newClass->super is not traversed or freed by dvmFreeClassInnards, so 1691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this is safe. 1692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(sizeof(u4) == sizeof(ClassObject*)); 1694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->super = (ClassObject*) pClassDef->superclassIdx; 1695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Stuff class reference indices into the pointer fields. 1698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The elements of newClass->interfaces are not traversed or freed by 1700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmFreeClassInnards, so this is GC-safe. 1701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexTypeList* pInterfacesList; 1703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pInterfacesList = dexGetInterfacesList(pDexFile, pClassDef); 1704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pInterfacesList != NULL) { 1705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaceCount = pInterfacesList->size; 1706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaces = (ClassObject**) dvmLinearAlloc(classLoader, 1707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaceCount * sizeof(ClassObject*)); 1708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < newClass->interfaceCount; i++) { 1710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexTypeItem* pType = dexGetTypeItem(pInterfacesList, i); 1711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaces[i] = (ClassObject*)(u4) pType->typeIdx; 1712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->interfaces); 1714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* load field definitions */ 1717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: consider over-allocating the class object and appending the 1720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * static field info onto the end. It's fixed-size and known at alloc 1721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * time. This would save a couple of native heap allocations, but it 1722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * would also make heap compaction more difficult because we pass Field 1723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pointers around internally. 1724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->staticFieldsSize != 0) { 1727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* static fields stay on system heap; field data isn't "write once" */ 1728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->staticFieldsSize; 1729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexField field; 1731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->sfieldCount = count; 1733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->sfields = 1734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (StaticField*) calloc(count, sizeof(StaticField)); 1735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataField(&pEncodedData, &field, &lastIndex); 1737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadSFieldFromDex(newClass, &field, &newClass->sfields[i]); 1738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->instanceFieldsSize != 0) { 1742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->instanceFieldsSize; 1743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexField field; 1745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->ifieldCount = count; 1747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->ifields = (InstField*) dvmLinearAlloc(classLoader, 1748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(InstField)); 1749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataField(&pEncodedData, &field, &lastIndex); 1751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadIFieldFromDex(newClass, &field, &newClass->ifields[i]); 1752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->ifields); 1754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 175699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* 175799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * Load method definitions. We do this in two batches, direct then 175899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * virtual. 175999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * 176099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * If register maps have already been generated for this class, and 176199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * precise GC is enabled, we pull out pointers to them. We know that 176299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * they were streamed to the DEX file in the same order in which the 176399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * methods appear. 176499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * 176599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * If the class wasn't pre-verified, the maps will be generated when 176699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * the class is verified during class initialization. 176799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project */ 176899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project u4 classDefIdx = dexGetIndexForClassDef(pDexFile, pClassDef); 176999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project const void* classMapData; 177099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project u4 numMethods; 177199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project 177299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (gDvm.preciseGc) { 177399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project classMapData = 1774d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden dvmRegisterMapGetClassData(pDexFile, classDefIdx, &numMethods); 177599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project 177699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* sanity check */ 177799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (classMapData != NULL && 177899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project pHeader->directMethodsSize + pHeader->virtualMethodsSize != numMethods) 177999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project { 178099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project LOGE("ERROR: in %s, direct=%d virtual=%d, maps have %d\n", 178199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->descriptor, pHeader->directMethodsSize, 178299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project pHeader->virtualMethodsSize, numMethods); 178399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert(false); 178499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project classMapData = NULL; /* abandon */ 178599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 178699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } else { 178799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project classMapData = NULL; 178899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 1789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->directMethodsSize != 0) { 1791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->directMethodsSize; 1792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexMethod method; 1794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->directMethodCount = count; 1796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->directMethods = (Method*) dvmLinearAlloc(classLoader, 1797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(Method)); 1798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataMethod(&pEncodedData, &method, &lastIndex); 1800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadMethodFromDex(newClass, &method, &newClass->directMethods[i]); 180199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (classMapData != NULL) { 1802d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden const RegisterMap* pMap = dvmRegisterMapGetNext(&classMapData); 1803d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden if (dvmRegisterMapGetFormat(pMap) != kRegMapFormatNone) { 180499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->directMethods[i].registerMap = pMap; 180599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* TODO: add rigorous checks */ 180699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert((newClass->directMethods[i].registersSize+7) / 8 == 180799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->directMethods[i].registerMap->regWidth); 180899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 180999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 1810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->directMethods); 1812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->virtualMethodsSize != 0) { 1815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->virtualMethodsSize; 1816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexMethod method; 1818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->virtualMethodCount = count; 1820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->virtualMethods = (Method*) dvmLinearAlloc(classLoader, 1821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(Method)); 1822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataMethod(&pEncodedData, &method, &lastIndex); 1824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadMethodFromDex(newClass, &method, &newClass->virtualMethods[i]); 182599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (classMapData != NULL) { 1826d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden const RegisterMap* pMap = dvmRegisterMapGetNext(&classMapData); 1827d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden if (dvmRegisterMapGetFormat(pMap) != kRegMapFormatNone) { 182899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->virtualMethods[i].registerMap = pMap; 182999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* TODO: add rigorous checks */ 183099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert((newClass->virtualMethods[i].registersSize+7) / 8 == 183199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->virtualMethods[i].registerMap->regWidth); 183299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 183399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 1834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->virtualMethods); 1836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->sourceFile = dexGetSourceFile(pDexFile, pClassDef); 1839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->status = CLASS_LOADED; 1840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* caller must call dvmReleaseTrackedAlloc */ 1842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return newClass; 1843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Try to load the indicated class from the specified DEX file. 1847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This is effectively loadClass()+defineClass() for a DexClassDef. The 1849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loading was largely done when we crunched through the DEX. 1850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns NULL on failure. If we locate the class but encounter an error 1852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * while processing it, an appropriate exception is thrown. 1853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex(DvmDex* pDvmDex, 1855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, Object* classLoader) 1856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result; 1858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexClassDataHeader header; 1859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u1* pEncodedData; 1860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFile* pDexFile; 1861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((pDvmDex != NULL) && (pClassDef != NULL)); 1863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = pDvmDex->pDexFile; 1864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) { 1866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: loading '%s'...\n", 1867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexGetClassDescriptor(pDexFile, pClassDef)); 1868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pEncodedData = dexGetClassData(pDexFile, pClassDef); 1871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pEncodedData != NULL) { 1873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataHeader(&pEncodedData, &header); 1874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Provide an all-zeroes header for the rest of the loading. 1876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memset(&header, 0, sizeof(header)); 1877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = loadClassFromDex0(pDvmDex, pClassDef, &header, pEncodedData, 1880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project classLoader); 1881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass && (result != NULL)) { 1883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("[Loaded %s from DEX %p (cl=%p)]\n", 1884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result->descriptor, pDvmDex, classLoader); 1885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 1888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free anything in a ClassObject that was allocated on the system heap. 1892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The ClassObject itself is allocated on the GC heap, so we leave it for 1894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the garbage collector. 1895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: this may be called with a partially-constructed object. 1897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: there is no particular ordering imposed, so don't go poking at 1898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclasses. 1899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmFreeClassInnards(ClassObject* clazz) 1901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void *tp; 1903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 1904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) 1906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 1907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.classJavaLangClass || 1909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->obj.clazz == gDvm.unlinkedJavaLangClass); 1910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Guarantee that dvmFreeClassInnards can be called on a given 1912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class multiple times by clearing things out as we free them. 1913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't make any attempt at real atomicity here; higher 1914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * levels need to make sure that no two threads can free the 1915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * same ClassObject at the same time. 1916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: maybe just make it so the GC will never free the 1918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * innards of an already-freed class. 1919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: this #define isn't MT-safe -- the compiler could rearrange it. 1921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define NULL_AND_FREE(p) \ 1923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { \ 1924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((p) != NULL) { \ 1925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tp = (p); \ 1926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (p) = NULL; \ 1927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(tp); \ 1928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } \ 1929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } while (0) 1930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define NULL_AND_LINEAR_FREE(p) \ 1931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { \ 1932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((p) != NULL) { \ 1933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tp = (p); \ 1934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (p) = NULL; \ 1935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, tp); \ 1936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } \ 1937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } while (0) 1938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* arrays just point at Object's vtable; don't free vtable in this case. 1940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmIsArrayClass() checks clazz->descriptor, so we have to do this check 1941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * before freeing the name. 1942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = -1; 1944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsArrayClass(clazz)) { 1945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = NULL; 1946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->vtable); 1948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor = NULL; 1951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_FREE(clazz->descriptorAlloc); 1952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->directMethods != NULL) { 1954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *directMethods = clazz->directMethods; 1955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int directMethodCount = clazz->directMethodCount; 1956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->directMethods = NULL; 1957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->directMethodCount = -1; 1958b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadWrite(clazz->classLoader, directMethods); 1959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < directMethodCount; i++) { 1960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeMethodInnards(&directMethods[i]); 1961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1962b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadOnly(clazz->classLoader, directMethods); 1963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, directMethods); 1964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->virtualMethods != NULL) { 1966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *virtualMethods = clazz->virtualMethods; 1967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int virtualMethodCount = clazz->virtualMethodCount; 1968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount = -1; 1969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods = NULL; 1970b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadWrite(clazz->classLoader, virtualMethods); 1971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < virtualMethodCount; i++) { 1972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeMethodInnards(&virtualMethods[i]); 1973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1974b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadOnly(clazz->classLoader, virtualMethods); 1975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, virtualMethods); 1976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 19782c98747b403970ef4b3352e271633f93935b9825Barry Hayes InitiatingLoaderList *loaderList = dvmGetInitiatingLoaderList(clazz); 19792c98747b403970ef4b3352e271633f93935b9825Barry Hayes loaderList->initiatingLoaderCount = -1; 19802c98747b403970ef4b3352e271633f93935b9825Barry Hayes NULL_AND_FREE(loaderList->initiatingLoaders); 1981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaceCount = -1; 1983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->interfaces); 1984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftableCount = -1; 1986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->iftable); 1987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPoolCount = -1; 1989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->ifviPool); 1990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->sfieldCount = -1; 1992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_FREE(clazz->sfields); 1993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldCount = -1; 1995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->ifields); 1996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#undef NULL_AND_FREE 1998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#undef NULL_AND_LINEAR_FREE 1999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free anything in a Method that was allocated on the system heap. 200399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * 200499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * The containing class is largely torn down by this point. 2005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeMethodInnards(Method* meth) 2007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if 0 2009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->exceptions); 2010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->lines); 2011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->locals); 2012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 201399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project 201499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* 201599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * Some register maps are allocated on the heap, either because of late 201699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * verification or because we're caching an uncompressed form. 201799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project */ 201899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project const RegisterMap* pMap = meth->registerMap; 2019d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden if (pMap != NULL && dvmRegisterMapGetOnHeap(pMap)) { 202099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project dvmFreeRegisterMap((RegisterMap*) pMap); 202199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project meth->registerMap = NULL; 202299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 2023b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2024b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden /* 2025b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * We may have copied the instructions. 2026b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden */ 2027b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden if (IS_METHOD_FLAG_SET(meth, METHOD_ISWRITABLE)) { 2028b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* methodDexCode = (DexCode*) dvmGetMethodCode(meth); 2029b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearFree(meth->clazz->classLoader, methodDexCode); 2030b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden } 2031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Clone a Method, making new copies of anything that will be freed up 203599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * by freeMethodInnards(). This is used for "miranda" methods. 2036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void cloneMethod(Method* dst, const Method* src) 2038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 203999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (src->registerMap != NULL) { 204099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project LOGE("GLITCH: only expected abstract methods here\n"); 204199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project LOGE(" cloning %s.%s\n", src->clazz->descriptor, src->name); 204299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project dvmAbort(); 204399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 2044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(dst, src, sizeof(Method)); 2045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pull the interesting pieces out of a DexMethod. 2049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The DEX file isn't going anywhere, so we don't need to make copies of 2051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the code area. 2052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadMethodFromDex(ClassObject* clazz, const DexMethod* pDexMethod, 2054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth) 2055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexMethodId* pMethodId; 2058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexCode* pDexCode; 2059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pMethodId = dexGetMethodId(pDexFile, pDexMethod->methodIdx); 2061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name = dexStringById(pDexFile, pMethodId->nameIdx); 2063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexProtoSetFromMethodId(&meth->prototype, pDexFile, pMethodId); 2064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->shorty = dexProtoGetShorty(&meth->prototype); 2065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags = pDexMethod->accessFlags; 2066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->clazz = clazz; 2067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->jniArgInfo = 0; 2068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareNameDescriptorAndMethod("finalize", "()V", meth) == 0) { 2070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexCode = dexGetCode(pDexFile, pDexMethod); 2074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDexCode != NULL) { 2075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* integer constants, copy over for faster access */ 2076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->registersSize = pDexCode->registersSize; 2077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->insSize = pDexCode->insSize; 2078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->outsSize = pDexCode->outsSize; 2079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* pointer to code area */ 2081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->insns = pDexCode->insns; 2082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't have a DexCode block, but we still want to know how 2085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * much space is needed for the arguments (so we don't have to 2086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compute it later). We also take this opportunity to compute 2087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * JNI argument info. 2088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We do this for abstract methods as well, because we want to 2090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be able to substitute our exception-throwing "stub" in. 2091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int argsSize = dvmComputeMethodArgsSize(meth); 2093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsStaticMethod(meth)) 2094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project argsSize++; 2095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->registersSize = meth->insSize = argsSize; 2096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->outsSize == 0); 2097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->insns == NULL); 2098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsNativeMethod(meth)) { 2100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc = dvmResolveNativeMethod; 2101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->jniArgInfo = computeJniArgInfo(&meth->prototype); 2102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2107b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * We usually map bytecode directly out of the DEX file, which is mapped 2108b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * shared read-only. If we want to be able to modify it, we have to make 2109b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * a new copy. 2110b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * 2111b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * Once copied, the code will be in the LinearAlloc region, which may be 2112b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * marked read-only. 2113b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * 2114b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * The bytecode instructions are embedded inside a DexCode structure, so we 2115b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * need to copy all of that. (The dvmGetMethodCode function backs up the 2116b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * instruction pointer to find the start of the DexCode.) 2117b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden */ 2118b51ea11c70602918c42764bfafe92a997d3b1803Andy McFaddenvoid dvmMakeCodeReadWrite(Method* meth) 2119b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden{ 2120b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* methodDexCode = (DexCode*) dvmGetMethodCode(meth); 2121b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2122b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden if (IS_METHOD_FLAG_SET(meth, METHOD_ISWRITABLE)) { 2123b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadWrite(meth->clazz->classLoader, methodDexCode); 2124b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden return; 2125b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden } 2126b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2127b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden assert(!dvmIsNativeMethod(meth) && !dvmIsAbstractMethod(meth)); 2128b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2129b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden size_t dexCodeSize = dexGetDexCodeSize(methodDexCode); 2130b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden LOGD("Making a copy of %s.%s code (%d bytes)\n", 2131b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden meth->clazz->descriptor, meth->name, dexCodeSize); 2132b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2133b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* newCode = 2134b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden (DexCode*) dvmLinearAlloc(meth->clazz->classLoader, dexCodeSize); 2135b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden memcpy(newCode, methodDexCode, dexCodeSize); 2136b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2137b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden meth->insns = newCode->insns; 2138b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden SET_METHOD_FLAG(meth, METHOD_ISWRITABLE); 2139b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden} 2140b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2141b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden/* 2142b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * Mark the bytecode read-only. 2143b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * 2144b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * If the contents of the DexCode haven't actually changed, we could revert 2145b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * to the original shared page. 2146b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden */ 2147b51ea11c70602918c42764bfafe92a997d3b1803Andy McFaddenvoid dvmMakeCodeReadOnly(Method* meth) 2148b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden{ 2149b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* methodDexCode = (DexCode*) dvmGetMethodCode(meth); 2150b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden LOGV("+++ marking %p read-only\n", methodDexCode); 2151b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadOnly(meth->clazz->classLoader, methodDexCode); 2152b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden} 2153b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2154b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2155b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden/* 2156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * jniArgInfo (32-bit int) layout: 2157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * SRRRHHHH HHHHHHHH HHHHHHHH HHHHHHHH 2158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * S - if set, do things the hard way (scan the signature) 2160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * R - return-type enumeration 2161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * H - target-specific hints 2162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This info is used at invocation time by dvmPlatformInvoke. In most 2164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * cases, the target-specific hints allow dvmPlatformInvoke to avoid 2165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * having to fully parse the signature. 2166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The return-type bits are always set, even if target-specific hint bits 2168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * are unavailable. 2169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int computeJniArgInfo(const DexProto* proto) 2171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* sig = dexProtoGetShorty(proto); 2173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int returnType, padFlags, jniArgInfo; 2174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char sigByte; 2175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int stackOffset, padMask; 2176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hints; 2177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* The first shorty character is the return type. */ 2179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (*(sig++)) { 2180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'V': 2181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_VOID; 2182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'F': 2184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_FLOAT; 2185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'D': 2187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_DOUBLE; 2188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'J': 2190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_S8; 2191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 2193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_S4; 2194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project jniArgInfo = returnType << DALVIK_JNI_RETURN_SHIFT; 2198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hints = dvmPlatformInvokeHints(proto); 2200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (hints & DALVIK_JNI_NO_ARG_INFO) { 2202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project jniArgInfo |= DALVIK_JNI_NO_ARG_INFO; 2203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((hints & DALVIK_JNI_RETURN_MASK) == 0); 2205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project jniArgInfo |= hints; 2206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return jniArgInfo; 2209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load information about a static field. 2213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This also "prepares" static fields by initializing them 2215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to their "standard default values". 2216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadSFieldFromDex(ClassObject* clazz, 2218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexSField, StaticField* sfield) 2219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFieldId* pFieldId; 2222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFieldId = dexGetFieldId(pDexFile, pDexSField->fieldIdx); 2224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.clazz = clazz; 2226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.name = dexStringById(pDexFile, pFieldId->nameIdx); 2227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.signature = dexStringByTypeIdx(pDexFile, pFieldId->typeIdx); 2228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.accessFlags = pDexSField->accessFlags; 2229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Static object field values are set to "standard default values" 2231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (null or 0) until the class is initialized. We delay loading 2232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * constant values from the class until that time. 2233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //sfield->value.j = 0; 2235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(sfield->value.j == 0LL); // cleared earlier with calloc 2236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef PROFILE_FIELD_ACCESS 2238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.gets = sfield->field.puts = 0; 2239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load information about an instance field. 2244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadIFieldFromDex(ClassObject* clazz, 2246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexIField, InstField* ifield) 2247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFieldId* pFieldId; 2250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFieldId = dexGetFieldId(pDexFile, pDexIField->fieldIdx); 2252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.clazz = clazz; 2254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.name = dexStringById(pDexFile, pFieldId->nameIdx); 2255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.signature = dexStringByTypeIdx(pDexFile, pFieldId->typeIdx); 2256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.accessFlags = pDexIField->accessFlags; 2257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifndef NDEBUG 2258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(ifield->byteOffset == 0); // cleared earlier with calloc 2259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->byteOffset = -1; // make it obvious if we fail to set later 2260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef PROFILE_FIELD_ACCESS 2263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.gets = ifield->field.puts = 0; 2264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache java.lang.ref.Reference fields and methods. 2269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool precacheReferenceOffsets(ClassObject *clazz) 2271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *meth; 2273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We trick the GC object scanner by not counting 2276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java.lang.ref.Reference.referent as an object 2277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field. It will get explicitly scanned as part 2278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of the reference-walking process. 2279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the object field named "referent" and put it 2281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * just after the list of object reference fields. 2282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->ifields); 2284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldRefCount; i++) { 2285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField *pField = &clazz->ifields[i]; 2286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(pField->field.name, "referent") == 0) { 2287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int targetIndex; 2288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Swap this field with the last object field. 2290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project targetIndex = clazz->ifieldRefCount - 1; 2292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != targetIndex) { 2293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField *swapField = &clazz->ifields[targetIndex]; 2294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField tmpField; 2295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int tmpByteOffset; 2296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* It's not currently strictly necessary 2298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for the fields to be in byteOffset order, 2299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but it's more predictable that way. 2300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmpByteOffset = swapField->byteOffset; 2302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField->byteOffset = pField->byteOffset; 2303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = tmpByteOffset; 2304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmpField = *swapField; 2306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *swapField = *pField; 2307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pField = tmpField; 2308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* One fewer object field (wink wink). 2311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount--; 2313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i--; /* don't trip "didn't find it" test if field was last */ 2314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifields); 2318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i == clazz->ifieldRefCount) { 2319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to reorder 'referent' in %s\n", clazz->descriptor); 2320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 2321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Cache pretty much everything about Reference so that 2324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we don't need to call interpreted code when clearing/enqueueing 2325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * references. This is fragile, so we'll be paranoid. 2326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangRefReference = clazz; 2328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_referent = 2330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "referent", "Ljava/lang/Object;"); 2332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_referent >= 0); 2333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_queue = 2335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "queue", "Ljava/lang/ref/ReferenceQueue;"); 2337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_queue >= 0); 2338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_queueNext = 2340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "queueNext", "Ljava/lang/ref/Reference;"); 2342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_queueNext >= 0); 2343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_vmData = 2345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "vmData", "I"); 2347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_vmData >= 0); 2348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if FANCY_REFERENCE_SUBCLASS 2350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = dvmFindVirtualMethodByDescriptor(clazz, "clear", "()V"); 2351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth != NULL); 2352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.voffJavaLangRefReference_clear = meth->methodIndex; 2353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = dvmFindVirtualMethodByDescriptor(clazz, "enqueue", "()Z"); 2355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth != NULL); 2356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.voffJavaLangRefReference_enqueue = meth->methodIndex; 2357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#else 2358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* enqueueInternal() is private and thus a direct method. */ 2359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = dvmFindDirectMethodByDescriptor(clazz, "enqueueInternal", "()Z"); 2360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth != NULL); 2361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.methJavaLangRefReference_enqueueInternal = meth; 2362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 2365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Link (prepare and resolve). Verification is deferred until later. 2370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This converts symbolic references into pointers. It's independent of 2372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the source file format. 2373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If "classesResolved" is false, we assume that superclassIdx and 2375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interfaces[] are holding class reference indices rather than pointers. 2376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class references will be resolved during link. (This is done when 2377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loading from DEX to avoid having to create additional storage to pass 2378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the indices around.) 2379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "false" with an exception pending on failure. 2381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmLinkClass(ClassObject* clazz, bool classesResolved) 2383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 superclassIdx = 0; 2385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool okay = false; 2386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool resolve_okay; 2387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int numInterfacesResolved = 0; 2388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) 2391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: linking '%s'...\n", clazz->descriptor); 2392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* "Resolve" the class. 2394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * At this point, clazz's reference fields contain Dex 2396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * file indices instead of direct object references. 2397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We need to translate those indices into real references, 2398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * while making sure that the GC doesn't sweep any of 2399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the referenced objects. 2400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The GC will avoid scanning this object as long as 2402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * clazz->obj.clazz is gDvm.unlinkedJavaLangClass. 2403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Once clazz is ready, we'll replace clazz->obj.clazz 2404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with gDvm.classJavaLangClass to let the GC know 2405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to look at it. 2406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.unlinkedJavaLangClass); 2408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* It's important that we take care of java.lang.Class 2410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * first. If we were to do this after looking up the 2411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass (below), Class wouldn't be ready when 2412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java.lang.Object needed it. 2413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note that we don't set clazz->obj.clazz yet. 2415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangClass == NULL) { 2417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->classLoader == NULL && 2418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project strcmp(clazz->descriptor, "Ljava/lang/Class;") == 0) 2419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangClass = clazz; 2421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangClass = 2423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindSystemClassNoInit("Ljava/lang/Class;"); 2424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangClass == NULL) { 2425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* should have thrown one */ 2426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 2427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.classJavaLangClass != NULL); 2432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Resolve all Dex indices so we can hand the ClassObject 2435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * over to the GC. If we fail at any point, we need to remove 2436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * any tracked references to avoid leaking memory. 2437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * All classes have a direct superclass, except for java/lang/Object. 2441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!classesResolved) { 2443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superclassIdx = (u4) clazz->super; /* unpack temp store */ 2444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super = NULL; 2445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, "Ljava/lang/Object;") == 0) { 2447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(!classesResolved); 2448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (superclassIdx != kDexNoIndex) { 2449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* TODO: is this invariant true for all java/lang/Objects, 2450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * regardless of the class loader? For now, assume it is. 2451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/ClassFormatError;", 2453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "java.lang.Object has a superclass"); 2454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Don't finalize objects whose classes use the 2458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * default (empty) Object.finalize(). 2459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLEAR_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!classesResolved) { 2463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (superclassIdx == kDexNoIndex) { 2464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 2465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "no superclass defined"); 2466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super = dvmResolveClass(clazz, superclassIdx, false); 2469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super == NULL) { 2470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 2471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.optimizing) { 2472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* happens with "external" libs */ 2473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Unable to resolve superclass of %s (%d)\n", 2474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, superclassIdx); 2475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Unable to resolve superclass of %s (%d)\n", 2477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, superclassIdx); 2478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* verify */ 2483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsFinalClass(clazz->super)) { 2484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' is final '%s'\n", 2485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IncompatibleClassChangeError;", 2487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass is final"); 2488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (dvmIsInterfaceClass(clazz->super)) { 2490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' is interface '%s'\n", 2491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IncompatibleClassChangeError;", 2493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass is an interface"); 2494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (!dvmCheckClassAccess(clazz, clazz->super)) { 2496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' (%s) is not accessible\n", 2497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IllegalAccessError;", 2499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass not accessible"); 2500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Don't let the GC reclaim the superclass. 2504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: shouldn't be needed; remove when things stabilize 2505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc((Object *)clazz->super, NULL); 2507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Inherit finalizability from the superclass. If this 2509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class also overrides finalize(), its CLASS_ISFINALIZABLE 2510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bit will already be set. 2511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz->super, CLASS_ISFINALIZABLE)) { 2513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* See if this class descends from java.lang.Reference 2517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and set the class flags appropriately. 2518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz->super, CLASS_ISREFERENCE)) { 2520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 superRefFlags; 2521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We've already determined the reference type of this 2523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * inheritance chain. Inherit reference-ness from the superclass. 2524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superRefFlags = GET_CLASS_FLAG_GROUP(clazz->super, 2526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISREFERENCE | 2527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISWEAKREFERENCE | 2528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISPHANTOMREFERENCE); 2529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, superRefFlags); 2530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (clazz->classLoader == NULL && 2531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super->classLoader == NULL && 2532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project strcmp(clazz->super->descriptor, 2533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/Reference;") == 0) 2534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 refFlags; 2536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This class extends Reference, which means it should 2538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be one of the magic Soft/Weak/PhantomReference classes. 2539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags = CLASS_ISREFERENCE; 2541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, 2542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/SoftReference;") == 0) 2543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Only CLASS_ISREFERENCE is set for soft references. 2545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (strcmp(clazz->descriptor, 2547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/WeakReference;") == 0) 2548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags |= CLASS_ISWEAKREFERENCE; 2550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (strcmp(clazz->descriptor, 2551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/PhantomReference;") == 0) 2552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags |= CLASS_ISPHANTOMREFERENCE; 2554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* No-one else is allowed to inherit directly 2556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * from Reference. 2557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project//xxx is this the right exception? better than an assertion. 2559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 2560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "illegal inheritance from Reference"); 2561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* The class should not have any reference bits set yet. 2565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(GET_CLASS_FLAG_GROUP(clazz, 2567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISREFERENCE | 2568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISWEAKREFERENCE | 2569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISPHANTOMREFERENCE) == 0); 2570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, refFlags); 2572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!classesResolved && clazz->interfaceCount > 0) { 2576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Resolve the interfaces implemented directly by this class. We 2578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stuffed the class index into the interface pointer slot. 2579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->interfaces); 2581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->interfaceCount; i++) { 2582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 interfaceIdx; 2583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project interfaceIdx = (u4) clazz->interfaces[i]; /* unpack temp store */ 2585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(interfaceIdx != kDexNoIndex); 2586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaces[i] = dvmResolveClass(clazz, interfaceIdx, false); 2588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->interfaces[i] == NULL) { 2589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 2592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* classDescriptor; 2595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project classDescriptor = dexStringByTypeIdx(pDexFile, interfaceIdx); 2596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.optimizing) { 2597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* happens with "external" libs */ 2598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Failed resolving %s interface %d '%s'\n", 2599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, interfaceIdx, classDescriptor); 2600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Failed resolving %s interface %d '%s'\n", 2602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, interfaceIdx, classDescriptor); 2603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_during_resolve; 2605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* are we allowed to implement this interface? */ 2608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmCheckClassAccess(clazz, clazz->interfaces[i])) { 2609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Interface '%s' is not accessible to '%s'\n", 2611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaces[i]->descriptor, clazz->descriptor); 2612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IllegalAccessError;", 2613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "interface not accessible"); 2614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_during_resolve; 2615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Don't let the GC reclaim the interface class. 2618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: shouldn't be needed; remove when things stabilize 2619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc((Object *)clazz->interfaces[i], NULL); 2621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project numInterfacesResolved++; 2622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("+++ found interface '%s'\n", 2624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaces[i]->descriptor); 2625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The ClassObject is now in a GC-able state. We let the GC 2631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * realize this by punching in the real class type, which is 2632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * always java.lang.Class. 2633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * After this line, clazz will be fair game for the GC. 2635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Every field that the GC will look at must now be valid: 2636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * - clazz->super 2637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * - class->classLoader 2638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * - clazz->sfields 2639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * - clazz->interfaces 2640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->obj.clazz = gDvm.classJavaLangClass; 2642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false) { 2644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_during_resolve: 2645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project resolve_okay = false; 2646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project resolve_okay = true; 2648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Now that the GC can scan the ClassObject, we can let 2652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * go of the explicit references we were holding onto. 2653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Either that or we failed, in which case we need to 2655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * release the references so we don't leak memory. 2656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object *)clazz->super, NULL); 2659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < numInterfacesResolved; i++) { 2661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object *)clazz->interfaces[i], NULL); 2662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!resolve_okay) { 2665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGW("resolve_okay is false\n"); 2666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Populate vtable. 2671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz)) { 2673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* no vtable; just set the method indices */ 2674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = clazz->virtualMethodCount; 2675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (count != (u2) count) { 2677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in interface '%s'\n", count, 2678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 2683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) 2685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].methodIndex = (u2) i; 2686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 2688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!createVtable(clazz)) { 2690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("failed creating vtable\n"); 2691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Populate interface method tables. Can alter the vtable. 2697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!createIftable(clazz)) 2699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Insert special-purpose "stub" method implementations. 2703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!insertMethodStubs(clazz)) 2705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compute instance field offsets and, hence, the size of the object. 2709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!computeFieldOffsets(clazz)) 2711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache fields and methods from java/lang/ref/Reference and 2715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java/lang/Class. This has to happen after computeFieldOffsets(). 2716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->classLoader == NULL) { 2718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, "Ljava/lang/ref/Reference;") == 0) { 2719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!precacheReferenceOffsets(clazz)) { 2720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("failed pre-caching Reference offsets\n"); 2721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/InternalError;", NULL); 2722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (clazz == gDvm.classJavaLangClass) { 2725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangClass_pd = dvmFindFieldOffset(clazz, "pd", 2726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/security/ProtectionDomain;"); 2727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.offJavaLangClass_pd <= 0) { 2728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: unable to find 'pd' field in Class\n"); 2729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); /* we're not going to get much farther */ 2730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //goto bail; 2731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Done! 2737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz, CLASS_ISPREVERIFIED)) 2739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFIED; 2740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 2741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_RESOLVED; 2742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project okay = true; 2743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) 2744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: linked '%s'\n", clazz->descriptor); 2745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We send CLASS_PREPARE events to the debugger from here. The 2748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * definition of "preparation" is creating the static fields for a 2749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class and initializing them to the standard default values, but not 2750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * executing any code (that comes later, during "initialization"). 2751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We did the static prep in loadSFieldFromDex() while loading the class. 2753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class has been prepared and resolved but possibly not yet verified 2755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * at this point. 2756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.debuggerActive) { 2758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDbgPostClassPrepare(clazz); 2759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 2762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!okay) { 2763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 2764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmCheckException(dvmThreadSelf())) { 2765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/VirtualMachineError;", NULL); 2766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return okay; 2769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create the virtual method table. 2773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The top part of the table is a copy of the table from our superclass, 2775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with our local methods overriding theirs. The bottom part of the table 2776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has any new methods we defined. 2777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createVtable(ClassObject* clazz) 2779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool result = false; 2781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int maxCount; 2782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("SUPER METHODS %d %s->%s\n", clazz->super->vtableCount, 2786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->super->descriptor); 2787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* the virtual methods we define, plus the superclass vtable size */ 2790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount = clazz->virtualMethodCount; 2791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount += clazz->super->vtableCount; 2793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* TODO: is this invariant true for all java/lang/Objects, 2795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * regardless of the class loader? For now, assume it is. 2796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(strcmp(clazz->descriptor, "Ljava/lang/Object;") == 0); 2798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGD("+++ max vmethods for '%s' is %d\n", clazz->descriptor, maxCount); 2800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Over-allocate the table, then realloc it down if necessary. So 2803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * long as we don't allocate anything in between we won't cause 2804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fragmentation, and reducing the size should be unlikely to cause 2805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a buffer copy. 2806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 2808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = (Method**) dvmLinearAlloc(clazz->classLoader, 2809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method*) * maxCount); 2810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) 2811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int actualCount; 2815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(clazz->vtable, clazz->super->vtable, 2817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(*(clazz->vtable)) * clazz->super->vtableCount); 2818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project actualCount = clazz->super->vtableCount; 2819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See if any of our virtual methods override the superclass. 2822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++) { 2824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* localMeth = &clazz->virtualMethods[i]; 2825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int si; 2826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (si = 0; si < clazz->super->vtableCount; si++) { 2828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* superMeth = clazz->vtable[si]; 2829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos(localMeth, superMeth) == 0) 2831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* verify */ 2833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsFinalMethod(superMeth)) { 2834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method %s.%s overrides final %s.%s\n", 2835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->clazz->descriptor, localMeth->name, 2836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superMeth->clazz->descriptor, superMeth->name); 2837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[si] = localMeth; 2840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->methodIndex = (u2) si; 2841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ override %s.%s (slot %d)\n", 2842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, localMeth->name, si); 2843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (si == clazz->super->vtableCount) { 2848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* not an override, add to end */ 2849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[actualCount] = localMeth; 2850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->methodIndex = (u2) actualCount; 2851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project actualCount++; 2852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ add method %s.%s\n", 2854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, localMeth->name); 2855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (actualCount != (u2) actualCount) { 2859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in class '%s'\n", actualCount, 2860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(actualCount <= maxCount); 2865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (actualCount < maxCount) { 2867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtable != NULL); 2868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 2869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = dvmLinearRealloc(clazz->classLoader, clazz->vtable, 2870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(*(clazz->vtable)) * actualCount); 2871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) { 2872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("vtable realloc failed\n"); 2873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("+++ reduced vtable from %d to %d\n", 2876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount, actualCount); 2877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = actualCount; 2881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* java/lang/Object case */ 2883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = clazz->virtualMethodCount; 2884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (count != (u2) count) { 2885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in base class '%s'\n", count, 2886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 2891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[i] = &clazz->virtualMethods[i]; 2892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].methodIndex = (u2) i; 2893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = clazz->virtualMethodCount; 2895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 2898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 2900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 2901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 2902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 2903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create and populate "iftable". 2907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The set of interfaces we support is the combination of the interfaces 2909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we implement directly and those implemented by our superclass. Each 2910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interface can have one or more "superinterfaces", which we must also 2911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * support. For speed we flatten the tree out. 2912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We might be able to speed this up when there are lots of interfaces 2914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by merge-sorting the class pointers and binary-searching when removing 2915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * duplicates. We could also drop the duplicate removal -- it's only 2916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * there to reduce the memory footprint. 2917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because of "Miranda methods", this may reallocate clazz->virtualMethods. 2919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" on success. 2921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createIftable(ClassObject* clazz) 2923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool result = false; 2925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapIftable = false; 2926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapVtable = false; 2927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapIfvipool = false; 2928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int ifCount, superIfCount, idx; 2929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) 2932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superIfCount = clazz->super->iftableCount; 2933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 2934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superIfCount = 0; 2935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount = superIfCount; 2937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount += clazz->interfaceCount; 2938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->interfaceCount; i++) 2939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount += clazz->interfaces[i]->iftableCount; 2940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: class '%s' direct w/supra=%d super=%d total=%d\n", 2942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, ifCount - superIfCount, superIfCount, ifCount); 2943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (ifCount == 0) { 2945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->iftableCount == 0); 2946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->iftable == NULL); 2947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 2948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create a table with enough space for all interfaces, and copy the 2953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass' table in. 2954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable = (InterfaceEntry*) dvmLinearAlloc(clazz->classLoader, 2956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(InterfaceEntry) * ifCount); 2957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapIftable = true; 2958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memset(clazz->iftable, 0x00, sizeof(InterfaceEntry) * ifCount); 2959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (superIfCount != 0) { 2960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(clazz->iftable, clazz->super->iftable, 2961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(InterfaceEntry) * superIfCount); 2962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create a flattened interface hierarchy of our immediate interfaces. 2966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx = superIfCount; 2968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->interfaceCount; i++) { 2970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* interf; 2971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 2972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project interf = clazz->interfaces[i]; 2974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(interf != NULL); 2975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* make sure this is still an interface class */ 2977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(interf)) { 2978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Class '%s' implements non-interface '%s'\n", 2979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, interf->descriptor); 2980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage( 2981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/IncompatibleClassChangeError;", 2982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* add entry for this interface */ 2987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[idx++].clazz = interf; 2988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* add entries for the interface's superinterfaces */ 2990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < interf->iftableCount; j++) { 2991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[idx++].clazz = interf->iftable[j].clazz; 2992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(idx == ifCount); 2996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false) { 2998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Remove anything redundant from our recent additions. Note we have 3000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to traverse the recent adds when looking for duplicates, because 3001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it's possible the recent additions are self-redundant. This 3002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * reduces the memory footprint of classes with lots of inherited 3003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interfaces. 3004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (I don't know if this will cause problems later on when we're trying 3006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to find a static field. It looks like the proper search order is 3007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (1) current class, (2) interfaces implemented by current class, 3008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (3) repeat with superclass. A field implemented by an interface 3009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and by a superclass might come out wrong if the superclass also 3010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implements the interface. The javac compiler will reject the 3011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * situation as ambiguous, so the concern is somewhat artificial.) 3012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * UPDATE: this makes ReferenceType.Interfaces difficult to implement, 3014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because it wants to return just the interfaces declared to be 3015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implemented directly by the class. I'm excluding this code for now. 3016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 3018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 3019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < ifCount; j++) { 3021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i == j) 3022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project continue; 3023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->iftable[i].clazz == clazz->iftable[j].clazz) { 3024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: redundant interface %s in %s\n", 3025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->descriptor, 3026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != ifCount-1) 3029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memmove(&clazz->iftable[i], &clazz->iftable[i+1], 3030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (ifCount - i -1) * sizeof(InterfaceEntry)); 3031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount--; 3032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i--; // adjust for i++ above 3033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: class '%s' nodupes=%d\n", clazz->descriptor, ifCount); 3038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } // if (false) 3039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftableCount = ifCount; 3041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we're an interface, we don't need the vtable pointers, so 3044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we're done. If this class doesn't implement an interface that our 3045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass doesn't have, then we again have nothing to do. 3046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz) || superIfCount == ifCount) { 3048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmDumpClass(clazz, kDumpClassFullDetail); 3049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * When we're handling invokeinterface, we probably have an object 3055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * whose type is an interface class rather than a concrete class. We 3056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * need to convert the method reference into a vtable index. So, for 3057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * every entry in "iftable", we create a list of vtable indices. 3058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because our vtable encompasses the superclass vtable, we can use 3060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the vtable indices from our superclass for all of the interfaces 3061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that weren't directly implemented by us. 3062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Each entry in "iftable" has a pointer to the start of its set of 3064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * vtable offsets. The iftable entries in the superclass point to 3065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * storage allocated in the superclass, and the iftable entries added 3066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for this class point to storage allocated in this class. "iftable" 3067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * is flat for fast access in a class and all of its subclasses, but 3068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "ifviPool" is only created for the topmost implementor. 3069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int poolSize = 0; 3071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 3072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note it's valid for an interface to have no methods (e.g. 3074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java/io/Serializable). 3075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: pool: %d from %s\n", 3077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->virtualMethodCount, 3078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->descriptor); 3079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolSize += clazz->iftable[i].clazz->virtualMethodCount; 3080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (poolSize == 0) { 3083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: didn't find any new interfaces with methods\n"); 3084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPoolCount = poolSize; 3089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPool = (int*) dvmLinearAlloc(clazz->classLoader, 3090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolSize * sizeof(int*)); 3091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapIfvipool = true; 3092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Fill in the vtable offsets for the interfaces that weren't part of 3095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our superclass. 3096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int poolOffset = 0; 3098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method** mirandaList = NULL; 3099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int mirandaCount = 0, mirandaAlloc = 0; 3100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 3102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* interface; 3103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int methIdx; 3104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray = clazz->ifviPool + poolOffset; 3106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project interface = clazz->iftable[i].clazz; 3107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolOffset += interface->virtualMethodCount; // end here 3108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For each method listed in the interface's method list, find the 3111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * matching method in our class's method list. We want to favor the 3112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * subclass over the superclass, which just requires walking 3113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * back from the end of the vtable. (This only matters if the 3114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass defines a private method and this class redefines 3115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it -- otherwise it would use the same vtable slot. In Dalvik 3116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * those don't end up in the virtual method table, so it shouldn't 3117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * matter which direction we go. We walk it backward anyway.) 3118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Suppose we have the following arrangement: 3121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public interface MyInterface 3122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inInterface(); 3123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public abstract class MirandaAbstract implements MirandaInterface 3124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * //public abstract boolean inInterface(); // not declared! 3125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inAbstract() { stuff } // in vtable 3126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public class MirandClass extends MirandaAbstract 3127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inInterface() { stuff } 3128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inAbstract() { stuff } // in vtable 3129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The javac compiler happily compiles MirandaAbstract even though 3131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it doesn't declare all methods from its interface. When we try 3132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to set up a vtable for MirandaAbstract, we find that we don't 3133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have an slot for inInterface. To prevent this, we synthesize 3134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * abstract method declarations in MirandaAbstract. 3135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We have to expand vtable and update some things that point at it, 3137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * so we accumulate the method list and do it all at once below. 3138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (methIdx = 0; methIdx < interface->virtualMethodCount; methIdx++) { 3140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* imeth = &interface->virtualMethods[methIdx]; 3141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 3142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGVV() { 3144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = dexProtoCopyMethodDescriptor(&imeth->prototype); 3145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: matching '%s' '%s'\n", imeth->name, desc); 3146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = clazz->vtableCount-1; j >= 0; j--) { 3150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos(imeth, clazz->vtable[j]) 3151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project == 0) 3152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 3153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: matched at %d\n", j); 3154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsPublicMethod(clazz->vtable[j])) { 3155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Implementation of %s.%s is not public\n", 3156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->vtable[j]->name); 3157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IllegalAccessError;", 3158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "interface implementation not public"); 3159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray[methIdx] = j; 3162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (j < 0) { 3166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGV() { 3167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = 3168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexProtoCopyMethodDescriptor(&imeth->prototype); 3169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("No match for '%s' '%s' in '%s' (creating miranda)\n", 3170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, desc, clazz->descriptor); 3171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmThrowException("Ljava/lang/RuntimeException;", "Miranda!"); 3174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //return false; 3175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaCount == mirandaAlloc) { 3177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaAlloc += 8; 3178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaList == NULL) { 3179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList = dvmLinearAlloc(clazz->classLoader, 3180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaAlloc * sizeof(Method*)); 3181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, mirandaList); 3183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList = dvmLinearRealloc(clazz->classLoader, 3184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList, mirandaAlloc * sizeof(Method*)); 3185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(mirandaList != NULL); // mem failed + we leaked 3187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * These may be redundant (e.g. method with same name and 3191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * signature declared in two interfaces implemented by the 3192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * same abstract class). We can squeeze the duplicates 3193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * out here. 3194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int mir; 3196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (mir = 0; mir < mirandaCount; mir++) { 3197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos( 3198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mir], imeth) == 0) 3199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 3200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGVV() { 3201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = dexProtoCopyMethodDescriptor( 3202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &imeth->prototype); 3203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA dupe: %s and %s %s%s\n", 3204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mir]->clazz->descriptor, 3205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->clazz->descriptor, 3206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, desc); 3207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* point the iftable at a phantom slot index */ 3214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray[methIdx] = 3215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount + mir; 3216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA: %s points at slot %d\n", 3217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, clazz->vtableCount + mir); 3218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* if non-duplicate among Mirandas, add to Miranda list */ 3220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mir == mirandaCount) { 3221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("MIRANDA: holding '%s' in slot %d\n", 3222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // imeth->name, mir); 3223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mirandaCount++] = imeth; 3224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaCount != 0) { 323068825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden static const int kManyMirandas = 150; /* arbitrary */ 3231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* newVirtualMethods; 3232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth; 3233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int oldMethodCount, oldVtableCount; 3234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < mirandaCount; i++) { 3236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA %d: %s.%s\n", i, 3237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[i]->clazz->descriptor, mirandaList[i]->name); 3238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 323968825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden if (mirandaCount > kManyMirandas) { 324068825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden /* 324168825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * Some obfuscators like to create an interface with a huge 324268825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * pile of methods, declare classes as implementing it, and then 324368825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * only define a couple of methods. This leads to a rather 324468825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * massive collection of Miranda methods and a lot of wasted 324568825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * space, sometimes enough to blow out the LinearAlloc cap. 324668825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden */ 324768825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden LOGD("Note: class %s has %d unimplemented (abstract) methods\n", 324868825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden clazz->descriptor, mirandaCount); 324968825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden } 3250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We found methods in one or more interfaces for which we do not 3253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have vtable entries. We have to expand our virtualMethods 3254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * table (which might be empty) to hold some new entries. 3255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->virtualMethods == NULL) { 3257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newVirtualMethods = (Method*) dvmLinearAlloc(clazz->classLoader, 3258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method) * (clazz->virtualMethodCount + mirandaCount)); 3259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newVirtualMethods = (Method*) dvmLinearRealloc(clazz->classLoader, 3262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods, 3263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method) * (clazz->virtualMethodCount + mirandaCount)); 3264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newVirtualMethods != clazz->virtualMethods) { 3266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Table was moved in memory. We have to run through the 3268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * vtable and fix the pointers. The vtable entries might be 3269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pointing at superclasses, so we flip it around: run through 3270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * all locally-defined virtual methods, and fix their entries 3271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in the vtable. (This would get really messy if sub-classes 3272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * had already been loaded.) 3273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Reminder: clazz->virtualMethods and clazz->virtualMethodCount 3275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * hold the virtual methods declared by this class. The 3276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method's methodIndex is the vtable index, and is the same 3277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for all sub-classes (and all super classes in which it is 3278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * defined). We're messing with these because the Miranda 3279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stuff makes it look like the class actually has an abstract 3280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method declaration in it. 3281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA fixing vtable pointers\n"); 3283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->vtable); 3284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth = newVirtualMethods; 3285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++, meth++) 3286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[meth->methodIndex] = meth; 3287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 3288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldMethodCount = clazz->virtualMethodCount; 3291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods = newVirtualMethods; 3292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount += mirandaCount; 3293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We also have to expand the vtable. 3298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtable != NULL); 3300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = (Method**) dvmLinearRealloc(clazz->classLoader, 3301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable, 3302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method*) * (clazz->vtableCount + mirandaCount)); 3303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) { 3304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 3305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapVtable = true; 3308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldVtableCount = clazz->vtableCount; 3310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount += mirandaCount; 3311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Now we need to create the fake methods. We clone the abstract 3314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method definition from the interface and then replace a few 3315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * things. 331668825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * 331768825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * The Method will be an "abstract native", with nativeFunc set to 331868825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * dvmAbstractMethodStub(). 3319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->virtualMethods + oldMethodCount; 3321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < mirandaCount; i++, meth++) { 3322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 3323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cloneMethod(meth, mirandaList[i]); 3324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->clazz = clazz; 3325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags |= ACC_MIRANDA; 3326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->methodIndex = (u2) (oldVtableCount + i); 3327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* point the new vtable entry at the new method */ 3330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[oldVtableCount + i] = meth; 3331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, mirandaList); 3334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, mirandaList); 3335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO? 3340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Sort the interfaces by number of declared methods. All we really 3341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * want is to get the interfaces with zero methods at the end of the 3342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * list, so that when we walk through the list during invoke-interface 3343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we don't examine interfaces that can't possibly be useful. 3344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The set will usually be small, so a simple insertion sort works. 3346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We have to be careful not to change the order of two interfaces 3348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that define the same method. (Not a problem if we only move the 3349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * zero-method interfaces to the end.) 3350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * PROBLEM: 3352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we do this, we will no longer be able to identify super vs. 3353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * current class interfaces by comparing clazz->super->iftableCount. This 3354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * breaks anything that only wants to find interfaces declared directly 3355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by the class (dvmFindStaticFieldHier, ReferenceType.Interfaces, 3356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmDbgOutputAllInterfaces, etc). Need to provide a workaround. 3357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can sort just the interfaces implemented directly by this class, 3359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but that doesn't seem like it would provide much of an advantage. I'm 3360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not sure this is worthwhile. 3361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This has been made largely obsolete by the interface cache mechanism.) 3363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmDumpClass(clazz); 3366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 3370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapIftable) 3371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->iftable); 3372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapVtable) 3373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 3374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapIfvipool) 3375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifviPool); 3376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 3377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Provide "stub" implementations for methods without them. 3382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Currently we provide an implementation for all abstract methods that 3384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * throws an AbstractMethodError exception. This allows us to avoid an 3385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * explicit check for abstract methods in every virtual call. 3386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: for Miranda methods, the method declaration is a clone of what 3388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * was found in the interface class. That copy may already have had the 3389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * function pointer filled in, so don't be surprised if it's not NULL. 3390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: this sets the "native" flag, giving us an "abstract native" method, 3392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * which is nonsensical. Need to make sure that this doesn't escape the 3393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * VM. We can either mask it out in reflection calls, or copy "native" 3394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * into the high 16 bits of accessFlags and check that internally. 3395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool insertMethodStubs(ClassObject* clazz) 3397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 3399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth; 3401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 3402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->virtualMethods; 3404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++, meth++) { 3405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsAbstractMethod(meth)) { 3406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->insns == NULL); 3407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->nativeFunc == NULL || 3408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc == (DalvikBridgeFunc)dvmAbstractMethodStub); 3409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags |= ACC_NATIVE; 3411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc = (DalvikBridgeFunc) dvmAbstractMethodStub; 3412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Swap two instance fields. 3422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic inline void swapField(InstField* pOne, InstField* pTwo) 3424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField swap; 3426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- swap '%s' and '%s'\n", pOne->field.name, pTwo->field.name); 3428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swap = *pOne; 3429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pOne = *pTwo; 3430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pTwo = swap; 3431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Assign instance fields to u4 slots. 3435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The top portion of the instance field area is occupied by the superclass 3437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fields, the bottom by the fields for this class. 3438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "long" and "double" fields occupy two adjacent slots. On some 3440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * architectures, 64-bit quantities must be 64-bit aligned, so we need to 3441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * arrange fields (or introduce padding) to ensure this. We assume the 3442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fields of the topmost superclass (i.e. Object) are 64-bit aligned, so 3443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we can just ensure that the offset is "even". To avoid wasting space, 3444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we want to move non-reference 32-bit fields into gaps rather than 3445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * creating pad words. 3446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In the worst case we will waste 4 bytes, but because objects are 3448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * allocated on >= 64-bit boundaries, those bytes may well be wasted anyway 3449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (assuming this is the most-derived class). 3450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pad words are not represented in the field table, so the field table 3452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * itself does not change size. 3453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The number of field slots determines the size of the object, so we 3455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * set that here too. 3456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This function feels a little more complicated than I'd like, but it 3458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has the property of moving the smallest possible set of fields, which 3459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * should reduce the time required to load a class. 3460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: reference fields *must* come first, or precacheReferenceOffsets() 3462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * will break. 3463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool computeFieldOffsets(ClassObject* clazz) 3465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int fieldOffset; 3467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i, j; 3468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->ifields); 3470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) 3472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset = clazz->super->objectSize; 3473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 3474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset = offsetof(DataObject, instanceData); 3475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- computeFieldOffsets '%s'\n", clazz->descriptor); 3477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("OFFSETS fieldCount=%d\n", clazz->ifieldCount); 3479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("dataobj, instance: %d\n", offsetof(DataObject, instanceData)); 3480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("classobj, access: %d\n", offsetof(ClassObject, accessFlags)); 3481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("super=%p, fieldOffset=%d\n", clazz->super, fieldOffset); 3482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Start by moving all reference fields to the front. 3485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount = 0; 3487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 3489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') { 3493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This isn't a reference field; see if any reference fields 3494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * follow this one. If so, we'll move it to this position. 3495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (quicksort-style partitioning) 3496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* refField = &clazz->ifields[j--]; 3499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = refField->field.signature[0]; 3500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc == '[' || rc == 'L') { 3502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Here's a reference field that follows at least one 3503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-reference field. Swap it with the current field. 3504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (When this returns, "pField" points to the reference 3505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field, and "refField" points to the non-ref field.) 3506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, refField); 3508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Fix the signature. 3510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project c = rc; 3512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount++; 3514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We may or may not have swapped a field. 3518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This is a reference field. 3521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount++; 3523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we've hit the end of the reference fields, break. 3527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') 3529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset1 '%s'=%d\n", pField->field.name,pField->byteOffset); 3534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Now we want to pack all of the double-wide fields together. If we're 3538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not aligned, though, we want to shuffle one 32-bit field into place. 3539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we can't find one, we'll have to pad it. 3540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != clazz->ifieldCount && (fieldOffset & 0x04) != 0) { 3542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" +++ not aligned\n"); 3543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != 'J' && c != 'D') { 3548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The field that comes next is 32-bit, so just advance past it. 3550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(c != '[' && c != 'L'); 3552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i++; 3555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset2 '%s'=%d\n", 3556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name, pField->byteOffset); 3557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Next field is 64-bit, so search for a 32-bit field we can 3560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * swap into it. 3561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool found = false; 3563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* singleField = &clazz->ifields[j--]; 3566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = singleField->field.signature[0]; 3567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc != 'J' && rc != 'D') { 3569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, singleField); 3570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //c = rc; 3571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" +++ swapped '%s' for alignment\n", 3572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name); 3573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset3 '%s'=%d\n", 3576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name, pField->byteOffset); 3577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = true; 3578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i++; 3579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!found) { 3583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV(" +++ inserting pad field in '%s'\n", clazz->descriptor); 3584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Alignment is good, shuffle any double-wide fields forward, and 3591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finish assigning field offsets to all fields. 3592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(i == clazz->ifieldCount || (fieldOffset & 0x04) == 0); 3594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for ( ; i < clazz->ifieldCount; i++) { 3596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != 'D' && c != 'J') { 3600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This isn't a double-wide field; see if any double fields 3601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * follow this one. If so, we'll move it to this position. 3602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (quicksort-style partitioning) 3603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* doubleField = &clazz->ifields[j--]; 3606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = doubleField->field.signature[0]; 3607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc == 'D' || rc == 'J') { 3609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Here's a double-wide field that follows at least one 3610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-double field. Swap it with the current field. 3611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (When this returns, "pField" points to the reference 3612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field, and "doubleField" points to the non-double field.) 3613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, doubleField); 3615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project c = rc; 3616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We may or may not have swapped a field. 3621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This is a double-wide field, leave it be. 3624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset4 '%s'=%d\n", pField->field.name,pField->byteOffset); 3629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c == 'J' || c == 'D') 3631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifndef NDEBUG 3635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Make sure that all reference fields appear before 3636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-reference fields, and all double-wide fields are aligned. 3637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = 0; // seen non-ref 3639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 3640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField *pField = &clazz->ifields[i]; 3641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c == 'D' || c == 'J') { 3644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((pField->byteOffset & 0x07) == 0); 3645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') { 3648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!j) { 3649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(i == clazz->ifieldRefCount); 3650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = 1; 3651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (j) { 3653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 3654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!j) { 3657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->ifieldRefCount == clazz->ifieldCount); 3658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 3660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We map a C struct directly on top of java/lang/Class objects. Make 3663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sure we left enough room for the instance fields. 3664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != gDvm.classJavaLangClass || (size_t)fieldOffset < 3666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project offsetof(ClassObject, instanceData) + sizeof(clazz->instanceData)); 3667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->objectSize = fieldOffset; 3669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifields); 3671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Throw the VM-spec-mandated error when an exception is thrown during 3676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class initialization. 3677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The safest way to do this is to call the ExceptionInInitializerError 3679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * constructor that takes a Throwable. 3680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * [Do we want to wrap it if the original is an Error rather than 3682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an Exception?] 3683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwClinitError(void) 3685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 3687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* exception; 3688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* eiie; 3689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project exception = dvmGetException(self); 3691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc(exception, self); 3692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(self); 3693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangExceptionInInitializerError == NULL) { 3695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Always resolves to same thing -- no race condition. 3697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangExceptionInInitializerError = 3699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindSystemClass( 3700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ExceptionInInitializerError;"); 3701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangExceptionInInitializerError == NULL) { 3702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to prep java/lang/ExceptionInInitializerError\n"); 3703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.methJavaLangExceptionInInitializerError_init = 3707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindDirectMethodByDescriptor(gDvm.classJavaLangExceptionInInitializerError, 3708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "<init>", "(Ljava/lang/Throwable;)V"); 3709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.methJavaLangExceptionInInitializerError_init == NULL) { 3710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to prep java/lang/ExceptionInInitializerError\n"); 3711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project eiie = dvmAllocObject(gDvm.classJavaLangExceptionInInitializerError, 3716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ALLOC_DEFAULT); 3717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (eiie == NULL) 3718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Construct the new object, and replace the exception with it. 3722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue unused; 3724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, gDvm.methJavaLangExceptionInInitializerError_init, 3725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project eiie, &unused, exception); 3726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetException(self, eiie); 3727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(eiie, NULL); 3728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(exception, self); 3729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfail: /* restore original exception */ 3732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetException(self, exception); 3733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(exception, self); 3734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class failed to initialize on a previous attempt, so we want to throw 3739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a NoClassDefFoundError (v2 2.17.5). The exception to this rule is if we 3740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * failed in verification, in which case v2 5.4.1 says we need to re-throw 3741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the previous error. 3742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwEarlierClassFailure(ClassObject* clazz) 3744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Rejecting re-init on previously-failed class %s v=%p\n", 3746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->verifyErrorClass); 3747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->verifyErrorClass == NULL) { 3749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage("Ljava/lang/NoClassDefFoundError;", 3750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionByClassWithClassMessage(clazz->verifyErrorClass, 3753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Initialize any static fields whose values are stored in 3759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the DEX file. This must be done during class initialization. 3760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void initSFields(ClassObject* clazz) 3762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); /* for dvmReleaseTrackedAlloc() */ 3764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile; 3765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 3766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexEncodedArray* pValueList; 3767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project EncodedArrayIterator iterator; 3768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 3769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->sfieldCount == 0) { 3771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->pDvmDex == NULL) { 3774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* generated class; any static fields should already be set up */ 3775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Not initializing static fields in %s\n", clazz->descriptor); 3776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = clazz->pDvmDex->pDexFile; 3779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDexFile, clazz->descriptor); 3781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pClassDef != NULL); 3782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pValueList = dexGetStaticValuesList(pDexFile, pClassDef); 3784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pValueList == NULL) { 3785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmEncodedArrayIteratorInitialize(&iterator, pValueList, clazz); 3789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Iterate over the initial values array, setting the corresponding 3792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * static field for each array element. 3793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; dvmEncodedArrayIteratorHasNext(&iterator); i++) { 3796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project AnnotationValue value; 3797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool parsed = dvmEncodedArrayIteratorGetNext(&iterator, &value); 3798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StaticField* sfield = &clazz->sfields[i]; 3799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor = sfield->field.signature; 3800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool needRelease = false; 3801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (! parsed) { 3803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: Eventually verification should attempt to ensure 3805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that this can't happen at least due to a data integrity 3806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * problem. 3807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Static initializer parse failed for %s at index %d", 3809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, i); 3810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 3811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Verify that the value we got was of a valid type. */ 3814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (descriptor[0]) { 3816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'Z': parsed = (value.type == kDexAnnotationBoolean); break; 3817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'B': parsed = (value.type == kDexAnnotationByte); break; 3818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'C': parsed = (value.type == kDexAnnotationChar); break; 3819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'S': parsed = (value.type == kDexAnnotationShort); break; 3820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'I': parsed = (value.type == kDexAnnotationInt); break; 3821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'J': parsed = (value.type == kDexAnnotationLong); break; 3822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'F': parsed = (value.type == kDexAnnotationFloat); break; 3823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'D': parsed = (value.type == kDexAnnotationDouble); break; 3824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case '[': parsed = (value.type == kDexAnnotationNull); break; 3825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'L': { 3826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (value.type) { 3827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationNull: { 3828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* No need for further tests. */ 3829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationString: { 3832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = 3833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (strcmp(descriptor, "Ljava/lang/String;") == 0); 3834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project needRelease = true; 3835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationType: { 3838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = 3839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (strcmp(descriptor, "Ljava/lang/Class;") == 0); 3840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project needRelease = true; 3841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: { 3844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = false; 3845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: { 3851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = false; 3852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (parsed) { 3857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * All's well, so store the value. Note: This always 3859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stores the full width of a JValue, even though most of 3860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the time only the first word is needed. 3861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->value = value.value; 3863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (needRelease) { 3864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(value.value.l, self); 3865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Something up above had a problem. TODO: See comment 3869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * above the switch about verfication. 3870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Bogus static initialization: value type %d in field type " 3872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "%s for %s at index %d", 3873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project value.type, descriptor, clazz->descriptor, i); 3874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 3875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Determine whether "descriptor" yields the same class object in the 3882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * context of clazz1 and clazz2. 3883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller must hold gDvm.loadedClasses. 3885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if they match. 3887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool compareDescriptorClasses(const char* descriptor, 3889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz1, const ClassObject* clazz2) 3890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result1; 3892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result2; 3893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Do the first lookup by name. 3896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result1 = dvmFindClassNoInit(descriptor, clazz1->classLoader); 3898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can skip a second lookup by name if the second class loader is 3901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in the initiating loader list of the class object we retrieved. 3902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This means that somebody already did a lookup of this class through 3903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the second loader, and it resolved to the same class.) If it's not 3904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * there, we may simply not have had an opportunity to add it yet, so 3905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we do the full lookup. 3906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The initiating loader test should catch the majority of cases 3908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (in particular, the zillions of references to String/Object). 3909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unfortunately we're still stuck grabbing a mutex to do the lookup. 3911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For this to work, the superclass/interface should be the first 3913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * argument, so that way if it's from the bootstrap loader this test 3914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * will work. (The bootstrap loader, by definition, never shows up 3915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * as the initiating loader of a class defined by some other loader.) 3916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 3918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool isInit = dvmLoaderInInitiatingList(result1, clazz2->classLoader); 3919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 3920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (isInit) { 3922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("%s(obj=%p) / %s(cl=%p): initiating\n", 3923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // result1->descriptor, result1, 3924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz2->descriptor, clazz2->classLoader); 3925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("%s(obj=%p) / %s(cl=%p): RAW\n", 3928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // result1->descriptor, result1, 3929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz2->descriptor, clazz2->classLoader); 3930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result2 = dvmFindClassNoInit(descriptor, clazz2->classLoader); 3931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result1 == NULL || result2 == NULL) { 3934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(dvmThreadSelf()); 3935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result1 == result2) { 3936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Neither class loader could find this class. Apparently it 3938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * doesn't exist. 3939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can either throw some sort of exception now, or just 3941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * assume that it'll fail later when something actually tries 3942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to use the class. For strict handling we should throw now, 3943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because a "tricky" class loader could start returning 3944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * something later, and a pair of "tricky" loaders could set 3945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * us up for confusion. 3946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm not sure if we're allowed to complain about nonexistent 3948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * classes in method signatures during class init, so for now 3949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this will just return "true" and let nature take its course. 3950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* only one was found, so clearly they're not the same */ 3954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 3955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result1 == result2; 3959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For every component in the method descriptor, resolve the class in the 3963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * context of the two classes and compare the results. 3964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For best results, the "superclass" class should be first. 3966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if the classes match, "false" otherwise. 3968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool checkMethodDescriptorClasses(const Method* meth, 3970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz1, const ClassObject* clazz2) 3971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexParameterIterator iterator; 3973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 3974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* walk through the list of parameters */ 3976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexParameterIteratorInit(&iterator, &meth->prototype); 3977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (true) { 3978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexParameterIteratorNextDescriptor(&iterator); 3979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor == NULL) 3981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor[0] == 'L' || descriptor[0] == '[') { 3984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* non-primitive type */ 3985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!compareDescriptorClasses(descriptor, clazz1, clazz2)) 3986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 3987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* check the return type */ 3991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexProtoGetReturnType(&meth->prototype); 3992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor[0] == 'L' || descriptor[0] == '[') { 3993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!compareDescriptorClasses(descriptor, clazz1, clazz2)) 3994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 3995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Validate the descriptors in the superclass and interfaces. 4001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * What we need to do is ensure that the classes named in the method 4003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptors in our ancestors and ourselves resolve to the same class 4004cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * objects. We can get conflicts when the classes come from different 4005cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * class loaders, and the resolver comes up with different results for 4006cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * the same class name in different contexts. 4007cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * 4008cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * An easy way to cause the problem is to declare a base class that uses 4009cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * class Foo in a method signature (e.g. as the return type). Then, 4010cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * define a subclass and a different version of Foo, and load them from a 4011cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * different class loader. If the subclass overrides the method, it will 4012cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * have a different concept of what Foo is than its parent does, so even 4013cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * though the method signature strings are identical, they actually mean 4014cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * different things. 4015cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * 4016cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * A call to the method through a base-class reference would be treated 4017cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * differently than a call to the method through a subclass reference, which 4018cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * isn't the way polymorphism works, so we have to reject the subclass. 4019cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * If the subclass doesn't override the base method, then there's no 4020cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * problem, because calls through base-class references and subclass 4021cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * references end up in the same place. 4022cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * 4023cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * We don't need to check to see if an interface's methods match with its 4024cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * superinterface's methods, because you can't instantiate an interface 4025cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * and do something inappropriate with it. If interface I1 extends I2 4026cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * and is implemented by C, and I1 and I2 are in separate class loaders 4027cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * and have conflicting views of other classes, we will catch the conflict 4028cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * when we process C. Anything that implements I1 is doomed to failure, 4029cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * but we don't need to catch that while processing I1. 4030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, throws an exception and returns "false". 4032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool validateSuperDescriptors(const ClassObject* clazz) 4034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz)) 4038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 4039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Start with the superclass-declared methods. 4042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL && 4044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->classLoader != clazz->super->classLoader) 4045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 4046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4047cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * Walk through every overridden method and compare resolved 4048cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * descriptor components. We pull the Method structs out of 4049cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * the vtable. It doesn't matter whether we get the struct from 4050cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * the parent or child, since we just need the UTF-8 descriptor, 4051cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * which must match. 4052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We need to do this even for the stuff inherited from Object, 4054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because it's possible that the new class loader has redefined 4055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a basic class like String. 4056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* meth; 4058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("Checking %s %p vs %s %p\n", 4060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->classLoader, 4061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->super->descriptor, clazz->super->classLoader); 4062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = clazz->super->vtableCount - 1; i >= 0; i--) { 4063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->vtable[i]; 4064cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden if (meth != clazz->super->vtable[i] && 4065cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden !checkMethodDescriptorClasses(meth, clazz->super, clazz)) 4066cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden { 4067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method mismatch: %s in %s (cl=%p) and super %s (cl=%p)\n", 4068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name, clazz->descriptor, clazz->classLoader, 4069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super->descriptor, clazz->super->classLoader); 4070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 4071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Classes resolve differently in superclass"); 4072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Check all interfaces we implement. 4079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->iftableCount; i++) { 4081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const InterfaceEntry* iftable = &clazz->iftable[i]; 4082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->classLoader != iftable->clazz->classLoader) { 4084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* iface = iftable->clazz; 4085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 4086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < iface->virtualMethodCount; j++) { 4088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* meth; 4089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int vtableIndex; 4090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project vtableIndex = iftable->methodIndexArray[j]; 4092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->vtable[vtableIndex]; 4093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!checkMethodDescriptorClasses(meth, iface, clazz)) { 4095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method mismatch: %s in %s (cl=%p) and " 4096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "iface %s (cl=%p)\n", 4097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name, clazz->descriptor, clazz->classLoader, 4098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project iface->descriptor, iface->classLoader); 4099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 4100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Classes resolve differently in interface"); 4101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 4108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns true if the class is being initialized by us (which means that 4112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * calling dvmInitClass will return immediately after fiddling with locks). 4113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * There isn't a race here, because either clazz->initThreadId won't match 4115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * us, or it will and it was set in the same thread. 4116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmIsClassInitializing(const ClassObject* clazz) 4118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (clazz->status == CLASS_INITIALIZING && 4120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId == dvmThreadSelf()->threadId); 4121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If a class has not been initialized, do so by executing the code in 4125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * <clinit>. The sequence is described in the VM spec v2 2.17.5. 4126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It is possible for multiple threads to arrive here simultaneously, so 4128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we need to lock the class while we check stuff. We know that no 4129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interpreted code has access to the class yet, so we can use the class's 4130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * monitor lock. 4131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We will often be called recursively, e.g. when the <clinit> code resolves 4133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * one of its fields, the field resolution will try to initialize the class. 4134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This can get very interesting if a class has a static field initialized 4136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to a new instance of itself. <clinit> will end up calling <init> on 4137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the members it is initializing, which is fine unless it uses the contents 4138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of static fields to initialize instance fields. This will leave the 4139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * static-referenced objects in a partially initialized state. This is 4140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * reasonably rare and can sometimes be cured with proper field ordering. 4141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, returns "false" with an exception raised. 4143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ----- 4145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It is possible to cause a deadlock by having a situation like this: 4147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class A { static { sleep(10000); new B(); } } 4148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class B { static { sleep(10000); new A(); } } 4149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * new Thread() { public void run() { new A(); } }.start(); 4150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * new Thread() { public void run() { new B(); } }.start(); 4151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This appears to be expected under the spec. 4152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The interesting question is what to do if somebody calls Thread.interrupt() 4154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on one of the deadlocked threads. According to the VM spec, they're both 4155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sitting in "wait". Should the interrupt code quietly raise the 4156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "interrupted" flag, or should the "wait" return immediately with an 4157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exception raised? 4158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This gets a little murky. The VM spec says we call "wait", and the 4160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * spec for Thread.interrupt says Object.wait is interruptible. So it 4161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * seems that, if we get unlucky and interrupt class initialization, we 4162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * are expected to throw (which gets converted to ExceptionInInitializerError 4163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * since InterruptedException is checked). 4164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * There are a couple of problems here. First, all threads are expected to 4166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * present a consistent view of class initialization, so we can't have it 4167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fail in one thread and succeed in another. Second, once a class fails 4168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to initialize, it must *always* fail. This means that a stray interrupt() 4169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * call could render a class unusable for the lifetime of the VM. 4170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In most cases -- the deadlock example above being a counter-example -- 4172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the interrupting thread can't tell whether the target thread handled 4173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the initialization itself or had to wait while another thread did the 4174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * work. Refusing to interrupt class initialization is, in most cases, 4175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not something that a program can reliably detect. 4176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On the assumption that interrupting class initialization is highly 4178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * undesirable in most circumstances, and that failing to do so does not 4179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * deviate from the spec in a meaningful way, we don't allow class init 4180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to be interrupted by Thread.interrupt(). 4181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmInitClass(ClassObject* clazz) 4183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool initializedByUs = false; 4186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 4189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method; 4190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmIsClassLinked(clazz) || clazz->status == CLASS_ERROR); 4193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class hasn't been verified yet, do so now. 4196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status < CLASS_VERIFIED) { 4198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we're in an "erroneous" state, throw an exception and bail. 4200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 4203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_RESOLVED); 4207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(!IS_CLASS_FLAG_SET(clazz, CLASS_ISPREVERIFIED)); 4208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classVerifyMode == VERIFY_MODE_NONE || 4210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (gDvm.classVerifyMode == VERIFY_MODE_REMOTE && 4211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->classLoader == NULL)) 4212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 4213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ not verifying class %s (cl=%p)\n", 4214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader); 4215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto noverify; 4216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!gDvm.optimizing) 4219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ late verify on %s\n", clazz->descriptor); 4220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're not supposed to optimize an unverified class, but during 4223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * development this mode was useful. We can't verify an optimized 4224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class because the optimization process discards information. 4225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz, CLASS_ISOPTIMIZED)) { 4227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Class '%s' was optimized without verification; " 4228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "not verifying now\n", 4229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW(" ('rm /data/dalvik-cache/*' and restart to fix this)"); 4231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto verify_failed; 4232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFYING; 4235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmVerifyClass(clazz, VERIFY_DEFAULT)) { 4236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectverify_failed: 4237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage("Ljava/lang/VerifyError;", 4238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->verifyErrorClass = dvmGetException(self)->clazz; 4240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFIED; 4245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectnoverify: 4247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_INITIALIZED) 4249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (clazz->status == CLASS_INITIALIZING) { 4252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* we caught somebody else in the act; was it us? */ 4253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->initThreadId == self->threadId) { 4254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("HEY: found a recursive <clinit>\n"); 4255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("GLITCH: exception pending at start of class init\n"); 4260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 4261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Wait for the other thread to finish initialization. We pass 4265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "false" for the "interruptShouldThrow" arg so it doesn't throw 4266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception on interrupt. 4267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectWait(self, (Object*) clazz, 0, 0, false); 4269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * When we wake up, repeat the test for init-in-progress. If there's 4272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception pending (only possible if "interruptShouldThrow" 4273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * was set), bail out. 4274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Class init of '%s' failing with wait() exception\n", 4277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: this is bogus, because it means the two threads have a 4280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * different idea of the class status. We need to flag the 4281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class as bad and ensure that the initializer thread respects 4282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our notice. If we get lucky and wake up after the class has 4283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finished initialization but before being woken, we have to 4284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * swallow the exception, perhaps raising thread->interrupted 4285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to preserve semantics. 4286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Since we're not currently allowing interrupts, this should 4288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * never happen and we don't need to fix this. 4289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 4291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwClinitError(); 4292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_INITIALIZING) { 4296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Waiting again for class init\n"); 4297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project continue; 4298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_INITIALIZED || 4300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status == CLASS_ERROR); 4301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller wants an exception, but it was thrown in a 4304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * different thread. Synthesize one here. 4305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/UnsatisfiedLinkError;", 4307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "(<clinit> failed, see exception in other thread)"); 4308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* see if we failed previously */ 4313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // might be wise to unlock before throwing; depends on which class 4315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // it is that we have locked 4316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 4318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're ready to go, and have exclusive access to the class. 4323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Before we start initialization, we need to do one extra bit of 4325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * validation: make sure that the methods declared here match up 4326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with our superclass and interfaces. We know that the UTF-8 4327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptors match, but classes from different class loaders can 4328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have the same name. 4329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We do this now, rather than at load/link time, for the same reason 4331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that we defer verification. 4332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It's unfortunate that we need to do this at all, but we risk 4334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * mixing reference types with identical names (see Dalvik test 068). 4335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!validateSuperDescriptors(clazz)) { 4337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 4338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Let's initialize this thing. 4344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We unlock the object so that other threads can politely sleep on 4346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our mutex with Object.wait(), instead of hanging or spinning trying 4347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to grab our mutex. 4348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status < CLASS_INITIALIZING); 4350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // We started initializing. 4353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('+', clazz); 4354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initializedByUs = true; 4355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_INITIALIZING; 4358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = self->threadId; 4359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init our superclass */ 4362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL && clazz->super->status != CLASS_INITIALIZED) { 4363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(!dvmIsInterfaceClass(clazz)); 4364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz->super)) { 4365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 4366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* wake up anybody who started waiting while we were unlocked */ 4368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_notify; 4370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Initialize any static fields whose values are 4374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stored in the Dex file. This should include all of the 4375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * simple "final static" fields, which are required to 4376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be initialized first. (vmspec 2 sec 2.17.5 item 8) 4377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * More-complicated final static fields should be set 4378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * at the beginning of <clinit>; all we can do is trust 4379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that the compiler did the right thing. 4380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initSFields(clazz); 4382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Execute any static initialization code. 4384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method = dvmFindDirectMethodByDescriptor(clazz, "<clinit>", "()V"); 4386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (method == NULL) { 4387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("No <clinit> found for %s\n", clazz->descriptor); 4388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Invoking %s.<clinit>\n", clazz->descriptor); 4390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue unused; 4391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, method, NULL, &unused); 4392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We've had an exception thrown during static initialization. We 4397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * need to throw an ExceptionInInitializerError, but we want to 4398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * tuck the original exception into the "cause" field. 4399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Exception %s thrown during %s.<clinit>\n", 4401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (dvmGetException(self)->clazz)->descriptor, clazz->descriptor); 4402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwClinitError(); 4403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGW("+++ replaced\n"); 4404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* success! */ 4409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_INITIALIZED; 4411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Initialized class: %s\n", clazz->descriptor); 4412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_notify: 4415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Notify anybody waiting on the object. 4417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 4419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_unlock: 4421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (initializedByUs) { 4424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // We finished initializing. 4425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('-', clazz); 4426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (clazz->status != CLASS_ERROR); 4432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Replace method->nativeFunc and method->insns with new values. This is 4436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * performed on resolution of a native method. 4437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetNativeFunc(const Method* method, DalvikBridgeFunc func, 4439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u2* insns) 4440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = method->clazz; 4442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* just open up both; easier that way */ 4444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 4445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->directMethods); 4446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ((Method*)method)->nativeFunc = func; 4448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ((Method*)method)->insns = insns; 4449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 4451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->directMethods); 4452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add a RegisterMap to a Method. This is done when we verify the class 445699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * and compute the register maps at class initialization time (i.e. when 445799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * we don't have a pre-generated map). This means "pMap" is on the heap 445899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * and should be freed when the Method is discarded. 4459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetRegisterMap(Method* method, const RegisterMap* pMap) 4461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = method->clazz; 4463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (method->registerMap != NULL) { 4465d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden /* unexpected during class loading, okay on first use (uncompress) */ 44669faa9e6a7df9a5b9ef7c8e9d5c07d2a050c319d3Andy McFadden LOGV("NOTE: registerMap already set for %s.%s\n", 4467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method->clazz->descriptor, method->name); 4468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* keep going */ 4469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 447099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert(!dvmIsNativeMethod(method) && !dvmIsAbstractMethod(method)); 4471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* might be virtual or direct */ 4473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 4474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->directMethods); 4475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method->registerMap = pMap; 4477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 4479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->directMethods); 4480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmHashForeach callback. A nonzero return value causes foreach to 4484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bail out. 4485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int findClassCallback(void* vclazz, void* arg) 4487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = vclazz; 4489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor = (const char*) arg; 4490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, descriptor) == 0) 4492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (int) clazz; 4493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find a loaded class by descriptor. Returns the first one found. 4498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because there can be more than one if class loaders are involved, 4499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this is not an especially good API. (Currently only used by the 4500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * debugger and "checking" JNI.) 4501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "descriptor" should have the form "Ljava/lang/Class;" or 4503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "[Ljava/lang/Class;", i.e. a descriptor and not an internal-form 4504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class name. 4505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindLoadedClass(const char* descriptor) 4507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result; 4509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = dvmHashForeach(gDvm.loadedClasses, findClassCallback, 4512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (void*) descriptor); 4513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (ClassObject*) result; 4516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Retrieve the system (a/k/a application) class loader. 4520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectObject* dvmGetSystemClassLoader(void) 4522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 4524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* getSysMeth; 4525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader; 4526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindSystemClass("Ljava/lang/ClassLoader;"); 4528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) 4529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 4530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project getSysMeth = dvmFindDirectMethodByDescriptor(clazz, "getSystemClassLoader", 4532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "()Ljava/lang/ClassLoader;"); 4533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (getSysMeth == NULL) 4534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 4535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue result; 4537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(dvmThreadSelf(), getSysMeth, NULL, &result); 4538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loader = (Object*)result.l; 4539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return loader; 4540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This is a dvmHashForeach callback. 4545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int dumpClass(void* vclazz, void* varg) 4547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 4549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* super; 4550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int flags = (int) varg; 4551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc; 4552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) { 4555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("dumpClass: ignoring request to dump null class\n"); 4556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((flags & kDumpClassFullDetail) == 0) { 4560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool showInit = (flags & kDumpClassInitialized) != 0; 4561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool showLoader = (flags & kDumpClassClassLoader) != 0; 4562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* initStr; 4563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initStr = dvmIsClassInitialized(clazz) ? "true" : "false"; 4565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (showInit && showLoader) 4567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %p %s\n", clazz->descriptor, clazz->classLoader, initStr); 4568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else if (showInit) 4569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %s\n", clazz->descriptor, initStr); 4570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else if (showLoader) 4571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %p\n", clazz->descriptor, clazz->classLoader); 4572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 4573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s\n", clazz->descriptor); 4574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* clazz->super briefly holds the superclass index during class prep */ 4579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((u4)clazz->super > 0x10000 && (u4) clazz->super != (u4)-1) 4580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super = clazz->super; 4581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 4582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super = NULL; 4583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("----- %s '%s' cl=%p ser=0x%08x -----\n", 4585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmIsInterfaceClass(clazz) ? "interface" : "class", 4586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader, clazz->serialNumber); 4587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" objectSize=%d (%d from super)\n", (int) clazz->objectSize, 4588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super != NULL ? (int) super->objectSize : -1); 4589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" access=0x%04x.%04x\n", clazz->accessFlags >> 16, 4590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->accessFlags & JAVA_FLAGS_MASK); 4591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (super != NULL) 4592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" super='%s' (cl=%p)\n", super->descriptor, super->classLoader); 4593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsArrayClass(clazz)) { 4594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" dimensions=%d elementClass=%s\n", 4595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->arrayDim, clazz->elementClass->descriptor); 4596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->iftableCount > 0) { 4598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" interfaces (%d):\n", clazz->iftableCount); 4599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->iftableCount; i++) { 4600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InterfaceEntry* ent = &clazz->iftable[i]; 4601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 4602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %s (cl=%p)\n", 4604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i, ent->clazz->descriptor, ent->clazz->classLoader); 4605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* enable when needed */ 4607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false && ent->methodIndexArray != NULL) { 4608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < ent->clazz->virtualMethodCount; j++) 4609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %d %s %s\n", 4610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j, ent->methodIndexArray[j], 4611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ent->clazz->virtualMethods[j].name, 4612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[ent->methodIndexArray[j]]->name); 4613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(clazz)) { 4617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" vtable (%d entries, %d in super):\n", clazz->vtableCount, 4618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super != NULL ? super->vtableCount : 0); 4619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->vtableCount; i++) { 4620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor(&clazz->vtable[i]->prototype); 4621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %s%2d: %p %20s %s\n", 4622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (i != clazz->vtable[i]->methodIndex) ? "*** " : "", 4623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (u4) clazz->vtable[i]->methodIndex, clazz->vtable[i], 4624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[i]->name, desc); 4625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" direct methods (%d entries):\n", clazz->directMethodCount); 4628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->directMethodCount; i++) { 4629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor( 4630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &clazz->directMethods[i].prototype); 4631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->directMethods[i].name, 4632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc); 4633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" interface methods (%d):\n", clazz->virtualMethodCount); 4637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++) { 4638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor( 4639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &clazz->virtualMethods[i].prototype); 4640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %2d %20s %s\n", i, 4641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (u4) clazz->virtualMethods[i].methodIndex, 4642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].name, 4643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc); 4644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->sfieldCount > 0) { 4648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" static fields (%d entries):\n", clazz->sfieldCount); 4649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->sfieldCount; i++) { 4650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->sfields[i].field.name, 4651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->sfields[i].field.signature); 4652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->ifieldCount > 0) { 4655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" instance fields (%d entries):\n", clazz->ifieldCount); 4656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 4657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->ifields[i].field.name, 4658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifields[i].field.signature); 4659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of a single class. 4666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pass kDumpClassFullDetail into "flags" to get lots of detail. 4668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpClass(const ClassObject* clazz, int flags) 4670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dumpClass((void*) clazz, (void*) flags); 4672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of all classes. 4676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpAllClasses(int flags) 4678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, dumpClass, (void*) flags); 4681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Get the number of loaded classes 4686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmGetNumLoadedClasses() 4688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count; 4690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count = dvmHashTableNumEntries(gDvm.loadedClasses); 4692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return count; 4694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Write some statistics to the log file. 4698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpLoaderStats(const char* msg) 4700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("VM stats (%s): cls=%d/%d meth=%d ifld=%d sfld=%d linear=%d\n", 4702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project msg, gDvm.numLoadedClasses, dvmHashTableNumEntries(gDvm.loadedClasses), 4703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredMethods, gDvm.numDeclaredInstFields, 4704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredStaticFields, gDvm.pBootLoaderAlloc->curOffset); 4705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef COUNT_PRECISE_METHODS 4706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("GC precise methods: %d\n", 4707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmPointerSetGetCount(gDvm.preciseMethods)); 4708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef PROFILE_FIELD_ACCESS 4712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the field access counts for all fields in this method. 4714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int dumpAccessCounts(void* vclazz, void* varg) 4716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 4718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 4721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Field* field = &clazz->ifields[i].field; 4722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->gets != 0) 4724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("GI %d %s.%s\n", field->gets, 4725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->puts != 0) 4727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("PI %d %s.%s\n", field->puts, 4728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->sfieldCount; i++) { 4731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Field* field = &clazz->sfields[i].field; 4732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->gets != 0) 4734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("GS %d %s.%s\n", field->gets, 4735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->puts != 0) 4737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("PS %d %s.%s\n", field->puts, 4738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the field access counts for all loaded classes. 4746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpFieldAccessCounts(void) 4748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, dumpAccessCounts, NULL); 4751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Mark all classes associated with the built-in loader. 4758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int markClassObject(void *clazz, void *arg) 4760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project UNUSED_PARAMETER(arg); 4762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMarkObjectNonNull((Object *)clazz); 4764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The garbage collector calls this to mark the class objects for all 4769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loaded classes. 4770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmGcScanRootClassLoader() 4772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* dvmClassStartup() may not have been called before the first GC. 4774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.loadedClasses != NULL) { 4776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, markClassObject, NULL); 4778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 4785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Method Prototypes and Descriptors 4786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 4787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare the two method names and prototypes, a la strcmp(). The 4791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * name is considered the "major" order and the prototype the "minor" 4792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * order. The prototypes are compared as if by dvmCompareMethodProtos(). 4793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareMethodNamesAndProtos(const Method* method1, 4795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method2) 4796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(method1->name, method2->name); 4798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareMethodProtos(method1, method2); 4804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare the two method names and prototypes, a la strcmp(), ignoring 4808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the return value. The name is considered the "major" order and the 4809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * prototype the "minor" order. The prototypes are compared as if by 4810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmCompareMethodArgProtos(). 4811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareMethodNamesAndParameterProtos(const Method* method1, 4813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method2) 4814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(method1->name, method2->name); 4816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareMethodParameterProtos(method1, method2); 4822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare a (name, prototype) pair with the (name, prototype) of 4826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a method, a la strcmp(). The name is considered the "major" order and 4827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the prototype the "minor" order. The descriptor and prototype are 4828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compared as if by dvmCompareDescriptorAndMethodProto(). 4829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareNameProtoAndMethod(const char* name, 4831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexProto* proto, const Method* method) 4832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(name, method->name); 4834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dexProtoCompare(proto, &method->prototype); 4840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare a (name, method descriptor) pair with the (name, prototype) of 4844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a method, a la strcmp(). The name is considered the "major" order and 4845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the prototype the "minor" order. The descriptor and prototype are 4846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compared as if by dvmCompareDescriptorAndMethodProto(). 4847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareNameDescriptorAndMethod(const char* name, 4849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor, const Method* method) 4850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(name, method->name); 4852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareDescriptorAndMethodProto(descriptor, method); 4858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4859