Class.cpp revision d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5
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); 1836daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayesstatic bool precacheReferenceOffsets(ClassObject* clazz); 1846daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayesstatic void computeRefOffsets(ClassObject* clazz); 185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeMethodInnards(Method* meth); 186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createVtable(ClassObject* clazz); 187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createIftable(ClassObject* clazz); 188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool insertMethodStubs(ClassObject* clazz); 189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool computeFieldOffsets(ClassObject* clazz); 190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwEarlierClassFailure(ClassObject* clazz); 191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Logs information about a class loading with given timestamp. 195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: In the case where we fail in dvmLinkClass() and log the class as closing (type='<'), 197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it would probably be better to use a new type code to indicate the failure. This change would 198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * require a matching change in the parser and analysis code in frameworks/base/tools/preload. 199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void logClassLoadWithTime(char type, ClassObject* clazz, u8 time) { 201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pid_t ppid = getppid(); 202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pid_t pid = getpid(); 203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project unsigned int tid = (unsigned int) pthread_self(); 204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOG(LOG_INFO, "PRELOAD", "%c%d:%d:%d:%s:%d:%s:%lld\n", type, ppid, pid, tid, 206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project get_process_name(), (int) clazz->classLoader, clazz->descriptor, 207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project time); 208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Logs information about a class loading. 212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void logClassLoad(char type, ClassObject* clazz) { 214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoadWithTime(type, clazz, dvmGetThreadCpuTimeNsec()); 215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Some LinearAlloc unit tests. 220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void linearAllocTests() 222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* fiddle; 224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int try = 1; 225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (try) { 227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 0: 228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-28); 229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 1: 232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-24); 233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 2: 236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-20); 237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 3: 240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-16); 241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 4: 244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-12); 245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 896); 249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 20); // watch addr of this alloc 251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 1); 254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'q'; 255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 4096); 257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'x'; 258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[4095] = 'y'; 259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(NULL, fiddle); 261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 0); 262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearRealloc(NULL, fiddle, 12); 264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[11] = 'z'; 265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearRealloc(NULL, fiddle, 5); 267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 17001); 269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'x'; 270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[17000] = 'y'; 271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* str = dvmLinearStrdup(NULL, "This is a test!"); 274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("GOT: '%s'\n", str); 275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2767605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden /* try to check the bounds; allocator may round allocation size up */ 2777605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden fiddle = dvmLinearAlloc(NULL, 12); 2787605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden LOGI("Should be 1: %d\n", dvmLinearAllocContains(fiddle, 12)); 2797605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden LOGI("Should be 0: %d\n", dvmLinearAllocContains(fiddle, 13)); 2807605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden LOGI("Should be 0: %d\n", dvmLinearAllocContains(fiddle - 128*1024, 1)); 2817605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden 282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearAllocDump(NULL); 283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(NULL, str); 284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Initialize the bootstrap class loader. 288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Call this after the bootclasspath string has been finalized. 290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmClassStartup(void) 292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* make this a requirement -- don't currently support dirs in path */ 294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(gDvm.bootClassPathStr, ".") == 0) { 295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: must specify non-'.' bootclasspath\n"); 296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.loadedClasses = 300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableCreate(256, (HashFreeFunc) dvmFreeClassInnards); 301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.pBootLoaderAlloc = dvmLinearAllocCreate(NULL); 303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.pBootLoaderAlloc == NULL) 304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false) { 307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project linearAllocTests(); 308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project exit(0); 309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class serial number. We start with a high value to make it distinct 313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in binary dumps (e.g. hprof). 314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3152c98747b403970ef4b3352e271633f93935b9825Barry Hayes gDvm.classSerialNumber = INITIAL_CLASS_SERIAL_NUMBER; 316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3172c98747b403970ef4b3352e271633f93935b9825Barry Hayes /* Set up the table we'll use for tracking initiating loaders for 3182c98747b403970ef4b3352e271633f93935b9825Barry Hayes * early classes. 3192c98747b403970ef4b3352e271633f93935b9825Barry Hayes * If it's NULL, we just fall back to the InitiatingLoaderList in the 3202c98747b403970ef4b3352e271633f93935b9825Barry Hayes * ClassObject, so it's not fatal to fail this allocation. 3212c98747b403970ef4b3352e271633f93935b9825Barry Hayes */ 3222c98747b403970ef4b3352e271633f93935b9825Barry Hayes gDvm.initiatingLoaderList = 3232c98747b403970ef4b3352e271633f93935b9825Barry Hayes calloc(ZYGOTE_CLASS_CUTOFF, sizeof(InitiatingLoaderList)); 324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This placeholder class is used while a ClassObject is 326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loading/linking so those not in the know can still say 327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "obj->clazz->...". 328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3294dc2ab9f91ac94ab4d725b119141769a2e23975bBarry Hayes gDvm.unlinkedJavaLangClass = 3304dc2ab9f91ac94ab4d725b119141769a2e23975bBarry Hayes dvmMalloc(sizeof(ClassObject), ALLOC_DONT_TRACK); 3314dc2ab9f91ac94ab4d725b119141769a2e23975bBarry Hayes if (gDvm.unlinkedJavaLangClass == NULL) { 3324dc2ab9f91ac94ab4d725b119141769a2e23975bBarry Hayes LOGE("Unable to allocate gDvm.unlinkedJavaLangClass"); 3334dc2ab9f91ac94ab4d725b119141769a2e23975bBarry Hayes dvmAbort(); 3344dc2ab9f91ac94ab4d725b119141769a2e23975bBarry Hayes } 335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Set obj->clazz to NULL so anyone who gets too interested 337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in the fake class will crash. 338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3394dc2ab9f91ac94ab4d725b119141769a2e23975bBarry Hayes DVM_OBJECT_INIT(&gDvm.unlinkedJavaLangClass->obj, NULL); 3404dc2ab9f91ac94ab4d725b119141769a2e23975bBarry Hayes gDvm.unlinkedJavaLangClass->descriptor = "!unlinkedClass"; 3414dc2ab9f91ac94ab4d725b119141769a2e23975bBarry Hayes dvmSetClassSerialNumber(gDvm.unlinkedJavaLangClass); 342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Process the bootstrap class path. This means opening the specified 345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * DEX or Jar files and possibly running them through the optimizer. 346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.bootClassPath == NULL); 348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project processClassPath(gDvm.bootClassPathStr, true); 349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.bootClassPath == NULL) 351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Clean up. 358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmClassShutdown(void) 360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* discard all system-loaded classes */ 364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableFree(gDvm.loadedClasses); 365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.loadedClasses = NULL; 366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* discard primitive classes created for arrays */ 368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < PRIM_MAX; i++) 369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFreeClassInnards(gDvm.primitiveClass[i]); 370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* this closes DEX files, JAR files, etc. */ 372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeCpeArray(gDvm.bootClassPath); 373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = NULL; 374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearAllocDestroy(NULL); 3762c98747b403970ef4b3352e271633f93935b9825Barry Hayes 3772c98747b403970ef4b3352e271633f93935b9825Barry Hayes free(gDvm.initiatingLoaderList); 378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Bootstrap class loader 384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of a ClassPathEntry array. 389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void dumpClassPath(const ClassPathEntry* cpe) 391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int idx = 0; 393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* kindStr; 396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: kindStr = "dir"; break; 399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: kindStr = "jar"; break; 400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: kindStr = "dex"; break; 401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: kindStr = "???"; break; 402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: type=%s %s %p\n", idx, kindStr, cpe->fileName, cpe->ptr); 405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (CALC_CACHE_STATS && cpe->kind == kCpeJar) { 406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex = dvmGetJarFileDex(pJarFile); 408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDumpAtomicCacheStats(pDvmDex->pInterfaceCache); 409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx++; 413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of the bootstrap class path. 418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpBootClassPath(void) 420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dumpClassPath(gDvm.bootClassPath); 422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if the class path contains the specified path. 426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmClassPathContains(const ClassPathEntry* cpe, const char* path) 428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(cpe->fileName, path) == 0) 431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free an array of ClassPathEntry structs. 440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We release the contents of each entry, then free the array itself. 442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeCpeArray(ClassPathEntry* cpe) 444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry* cpeStart = cpe; 446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cpe == NULL) 448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* free JarFile */ 454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmJarFileFree((JarFile*) cpe->ptr); 455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* free RawDexFile */ 458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmRawDexFileFree((RawDexFile*) cpe->ptr); 459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* e.g. kCpeDir */ 462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(cpe->ptr == NULL); 463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpe->fileName); 467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpeStart); 471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Prepare a ClassPathEntry struct, which at this point only has a valid 475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * filename. We need to figure out what kind of file it is, and for 476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * everything other than directories we need to open it up and see 477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * what's inside. 478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool prepareCpe(ClassPathEntry* cpe, bool isBootstrap) 480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = NULL; 482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RawDexFile* pRawDexFile = NULL; 483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project struct stat sb; 484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int cc; 485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cc = stat(cpe->fileName, &sb); 487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cc < 0) { 4881b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden LOGD("Unable to stat classpath element '%s'\n", cpe->fileName); 489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (S_ISDIR(sb.st_mode)) { 492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The directory will usually have .class files in subdirectories, 494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * which may be a few levels down. Doing a recursive scan and 495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * caching the results would help us avoid hitting the filesystem 496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on misses. Whether or not this is of measureable benefit 497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * depends on a number of factors, but most likely it is not 498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * worth the effort (especially since most of our stuff will be 499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in DEX or JAR). 500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeDir; 502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(cpe->ptr == NULL); 503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmJarFileOpen(cpe->fileName, NULL, &pJarFile, isBootstrap) == 0) { 507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeJar; 508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->ptr = pJarFile; 509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // TODO: do we still want to support "raw" DEX files in the classpath? 513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmRawDexFileOpen(cpe->fileName, NULL, &pRawDexFile, isBootstrap) == 0) 514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeDex; 516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->ptr = pRawDexFile; 517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 5201b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden LOGD("Unable to process classpath element '%s'\n", cpe->fileName); 521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Convert a colon-separated list of directories, Zip files, and DEX files 526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * into an array of ClassPathEntry structs. 527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * During normal startup we fail if there are no entries, because we won't 529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * get very far without the basic language support classes, but if we're 530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * optimizing a DEX file we allow it. 5311b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * 5321b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * If entries are added or removed from the bootstrap class path, the 5331b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * dependencies in the DEX files will break, and everything except the 5341b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * very first entry will need to be regenerated. 535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassPathEntry* processClassPath(const char* pathStr, bool isBootstrap) 537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry* cpe = NULL; 539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* mangle; 540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* cp; 541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* end; 542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int idx, count; 543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pathStr != NULL); 545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mangle = strdup(pathStr); 547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Run through and essentially strtok() the string. Get a count of 550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the #of elements while we're at it. 551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the path was constructed strangely (e.g. ":foo::bar:") this will 553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * over-allocate, which isn't ideal but is mostly harmless. 554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count = 1; 556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (cp = mangle; *cp != '\0'; cp++) { 557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*cp == ':') { /* separates two entries */ 558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count++; 559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *cp = '\0'; 560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project end = cp; 563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Allocate storage. We over-alloc by one so we can set an "end" marker. 566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe = (ClassPathEntry*) calloc(count+1, sizeof(ClassPathEntry)); 568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set the global pointer so the DEX file dependency stuff can find it. 571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = cpe; 573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Go through a second time, pulling stuff out. 576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cp = mangle; 578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx = 0; 579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cp < end) { 580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*cp == '\0') { 581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* leading, trailing, or doubled ':'; ignore it */ 582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry tmp; 584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.kind = kCpeUnknown; 585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.fileName = strdup(cp); 586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.ptr = NULL; 587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* drop an end marker here so DEX loader can walk unfinished list */ 589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].kind = kCpeLastEntry; 590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].fileName = NULL; 591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].ptr = NULL; 592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!prepareCpe(&tmp, isBootstrap)) { 594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* drop from list and continue on */ 595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(tmp.fileName); 596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* copy over, pointers and all */ 598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (tmp.fileName[0] != '/') 599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Non-absolute bootclasspath entry '%s'\n", 600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.fileName); 601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx] = tmp; 602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx++; 603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cp += strlen(cp) +1; 607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(idx <= count); 609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (idx == 0 && !gDvm.optimizing) { 610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: no valid entries found in bootclasspath '%s'\n", pathStr); 611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpe); 612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe = NULL; 613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" (filled %d of %d slots)\n", idx, count); 617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* put end marker in over-alloc slot */ 619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].kind = kCpeLastEntry; 620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].fileName = NULL; 621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].ptr = NULL; 622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dumpClassPath(cpe); 624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(mangle); 627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = cpe; 628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return cpe; 629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Search the DEX files we loaded from the bootstrap class path for a DEX 633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * file that has the class with the matching descriptor. 634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns the matching DEX file and DexClassDef entry if found, otherwise 636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * returns NULL. 637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic DvmDex* searchBootPathForClass(const char* descriptor, 639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef** ppClassDef) 640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pFoundDef = NULL; 643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pFoundFile = NULL; 644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("+++ class '%s' not yet loaded, scanning bootclasspath...\n", 646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor); 647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ checking '%s' (%d)\n", cpe->fileName, cpe->kind); 650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: 653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Directory entries ('%s') not supported in bootclasspath\n", 654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->fileName); 655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex; 661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = dvmGetJarFileDex(pJarFile); 663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = pDvmDex; 668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto found; 669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RawDexFile* pRawDexFile = (RawDexFile*) cpe->ptr; 675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex; 677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = dvmGetRawDexFileDex(pRawDexFile); 679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = pDvmDex; 684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto found; 685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unknown kind %d\n", cpe->kind); 690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Special handling during verification + optimization. 699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The DEX optimizer needs to load classes from the DEX file it's working 701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on. Rather than trying to insert it into the bootstrap class path 702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * or synthesizing a class loader to manage it, we just make it available 703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * here. It logically comes after all existing entries in the bootstrap 704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class path. 705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.bootClassPathOptExtra != NULL) { 707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = 710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexFindClass(gDvm.bootClassPathOptExtra->pDexFile, descriptor); 711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = gDvm.bootClassPathOptExtra; 715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfound: 719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *ppClassDef = pFoundDef; 720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return pFoundFile; 721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set the "extra" DEX, which becomes a de facto member of the bootstrap 725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class set. 726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetBootPathExtraDex(DvmDex* pDvmDex) 728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPathOptExtra = pDvmDex; 730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Return the #of entries in the bootstrap class path. 735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (Used for ClassLoader.getResources().) 737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmGetBootPathSize(void) 739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) 743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return cpe - gDvm.bootClassPath; 746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find a resource with the specified name in entry N of the boot class path. 750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We return a newly-allocated String of one of these forms: 752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * file://path/name 753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * jar:file://path!/name 754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Where "path" is the bootstrap class path entry and "name" is the string 755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * passed into this method. "path" needs to be an absolute path (starting 756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with '/'); if it's not we'd need to "absolutify" it as part of forming 757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the URL string. 758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectStringObject* dvmGetBootPathResource(const char* name, int idx) 760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const int kUrlOverhead = 13; // worst case for Jar URL 762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StringObject* urlObj = NULL; 764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ searching for resource '%s' in %d(%s)\n", 766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project name, idx, cpe[idx].fileName); 767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* we could use direct array index, but I don't entirely trust "idx" */ 769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (idx-- && cpe->kind != kCpeLastEntry) 770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cpe->kind == kCpeLastEntry) { 772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char urlBuf[strlen(name) + strlen(cpe->fileName) + kUrlOverhead +1]; 777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: 780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sprintf(urlBuf, "file://%s/%s", cpe->fileName, name); 781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (access(urlBuf+7, F_OK) != 0) 782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dexZipFindEntry(&pJarFile->archive, name) == NULL) 788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sprintf(urlBuf, "jar:file://%s!/%s", cpe->fileName, name); 790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("No resources in DEX files\n"); 794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ using URL='%s'\n", urlBuf); 801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project urlObj = dvmCreateStringFromCstr(urlBuf, ALLOC_DEFAULT); 802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return urlObj; 805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class list management 811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* search for these criteria in the Class hash table */ 815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecttypedef struct ClassMatchCriteria { 816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader; 818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} ClassMatchCriteria; 819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define kInitLoaderInc 4 /* must be power of 2 */ 821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 8222c98747b403970ef4b3352e271633f93935b9825Barry Hayesstatic InitiatingLoaderList *dvmGetInitiatingLoaderList(ClassObject* clazz) 8232c98747b403970ef4b3352e271633f93935b9825Barry Hayes{ 8242c98747b403970ef4b3352e271633f93935b9825Barry Hayes assert(clazz->serialNumber > INITIAL_CLASS_SERIAL_NUMBER); 8252c98747b403970ef4b3352e271633f93935b9825Barry Hayes int classIndex = clazz->serialNumber-INITIAL_CLASS_SERIAL_NUMBER; 8262c98747b403970ef4b3352e271633f93935b9825Barry Hayes if (gDvm.initiatingLoaderList != NULL && 8272c98747b403970ef4b3352e271633f93935b9825Barry Hayes classIndex < ZYGOTE_CLASS_CUTOFF) { 8282c98747b403970ef4b3352e271633f93935b9825Barry Hayes return &(gDvm.initiatingLoaderList[classIndex]); 8292c98747b403970ef4b3352e271633f93935b9825Barry Hayes } else { 8302c98747b403970ef4b3352e271633f93935b9825Barry Hayes return &(clazz->initiatingLoaderList); 8312c98747b403970ef4b3352e271633f93935b9825Barry Hayes } 8322c98747b403970ef4b3352e271633f93935b9825Barry Hayes} 8332c98747b403970ef4b3352e271633f93935b9825Barry Hayes 834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Determine if "loader" appears in clazz' initiating loader list. 836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class hash table lock must be held when calling here, since 838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it's also used when updating a class' initiating loader list. 839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: switch to some sort of lock-free data structure so we don't have 841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to grab the lock to do a lookup. Among other things, this would improve 842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the speed of compareDescriptorClasses(). 843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmLoaderInInitiatingList(const ClassObject* clazz, const Object* loader) 845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The bootstrap class loader can't be just an initiating loader for 848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything (it's always the defining loader if the class is visible 849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to it). We don't put defining loaders in the initiating list. 850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader == NULL) 852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Scan the list for a match. The list is expected to be short. 856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 8572c98747b403970ef4b3352e271633f93935b9825Barry Hayes /* Cast to remove the const from clazz, but use const loaderList */ 8582c98747b403970ef4b3352e271633f93935b9825Barry Hayes ClassObject* nonConstClazz = (ClassObject*) clazz; 8592c98747b403970ef4b3352e271633f93935b9825Barry Hayes const InitiatingLoaderList *loaderList = 8602c98747b403970ef4b3352e271633f93935b9825Barry Hayes dvmGetInitiatingLoaderList(nonConstClazz); 861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 8622c98747b403970ef4b3352e271633f93935b9825Barry Hayes for (i = loaderList->initiatingLoaderCount-1; i >= 0; --i) { 8632c98747b403970ef4b3352e271633f93935b9825Barry Hayes if (loaderList->initiatingLoaders[i] == loader) { 864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("+++ found initiating match %p in %s\n", 865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // loader, clazz->descriptor); 866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add "loader" to clazz's initiating loader set, unless it's the defining 874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class loader. 875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In the common case this will be a short list, so we don't need to do 877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything too fancy here. 878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This locks gDvm.loadedClasses for synchronization, so don't hold it 880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * when calling here. 881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmAddInitiatingLoader(ClassObject* clazz, Object* loader) 883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != clazz->classLoader) { 885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader != NULL); 886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Adding %p to '%s' init list\n", loader, clazz->descriptor); 888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Make sure nobody snuck in. The penalty for adding twice is 892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pretty minor, and probably outweighs the O(n^2) hit for 893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * checking before every add, so we may not want to do this. 894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 8952c98747b403970ef4b3352e271633f93935b9825Barry Hayes //if (dvmLoaderInInitiatingList(clazz, loader)) { 8962c98747b403970ef4b3352e271633f93935b9825Barry Hayes // LOGW("WOW: simultaneous add of initiating class loader\n"); 8972c98747b403970ef4b3352e271633f93935b9825Barry Hayes // goto bail_unlock; 8982c98747b403970ef4b3352e271633f93935b9825Barry Hayes //} 899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The list never shrinks, so we just keep a count of the 902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * number of elements in it, and reallocate the buffer when 903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we run off the end. 904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The pointer is initially NULL, so we *do* want to call realloc 906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * when count==0. 907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 9082c98747b403970ef4b3352e271633f93935b9825Barry Hayes InitiatingLoaderList *loaderList = dvmGetInitiatingLoaderList(clazz); 9092c98747b403970ef4b3352e271633f93935b9825Barry Hayes if ((loaderList->initiatingLoaderCount & (kInitLoaderInc-1)) == 0) { 910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object** newList; 911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 9122c98747b403970ef4b3352e271633f93935b9825Barry Hayes newList = (Object**) realloc(loaderList->initiatingLoaders, 9132c98747b403970ef4b3352e271633f93935b9825Barry Hayes (loaderList->initiatingLoaderCount + kInitLoaderInc) 914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sizeof(Object*)); 915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newList == NULL) { 916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* this is mainly a cache, so it's not the EotW */ 917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 9202c98747b403970ef4b3352e271633f93935b9825Barry Hayes loaderList->initiatingLoaders = newList; 921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("Expanded init list to %d (%s)\n", 9232c98747b403970ef4b3352e271633f93935b9825Barry Hayes // loaderList->initiatingLoaderCount+kInitLoaderInc, 924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor); 925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 9262c98747b403970ef4b3352e271633f93935b9825Barry Hayes loaderList->initiatingLoaders[loaderList->initiatingLoaderCount++] = 9272c98747b403970ef4b3352e271633f93935b9825Barry Hayes loader; 928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_unlock: 930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This is a dvmHashTableLookup callback.) 936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Entries in the class hash table are stored as { descriptor, d-loader } 938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * tuples. If the hashed class descriptor matches the requested descriptor, 939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and the hashed defining class loader matches the requested class 940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader, we're good. If only the descriptor matches, we check to see if the 941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader is in the hashed class' initiating loader list. If so, we 942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * can return "true" immediately and skip some of the loadClass melodrama. 943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller must lock the hash table before calling here. 945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns 0 if a matching entry is found, nonzero otherwise. 947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int hashcmpClassByCrit(const void* vclazz, const void* vcrit) 949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassMatchCriteria* pCrit = (const ClassMatchCriteria*) vcrit; 952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool match; 953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project match = (strcmp(clazz->descriptor, pCrit->descriptor) == 0 && 955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (clazz->classLoader == pCrit->loader || 956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (pCrit->loader != NULL && 957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLoaderInInitiatingList(clazz, pCrit->loader)) )); 958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //if (match) 959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // LOGI("+++ %s %p matches existing %s %p\n", 960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // pCrit->descriptor, pCrit->loader, 961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->classLoader); 962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return !match; 963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Like hashcmpClassByCrit, but passing in a fully-formed ClassObject 967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * instead of a ClassMatchCriteria. 968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int hashcmpClassByClass(const void* vclazz, const void* vaddclazz) 970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* addClazz = (const ClassObject*) vaddclazz; 973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool match; 974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project match = (strcmp(clazz->descriptor, addClazz->descriptor) == 0 && 976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (clazz->classLoader == addClazz->classLoader || 977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (addClazz->classLoader != NULL && 978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLoaderInInitiatingList(clazz, addClazz->classLoader)) )); 979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return !match; 980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Search through the hash table to find an entry with a matching descriptor 984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and an initiating class loader that matches "loader". 985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The table entries are hashed on descriptor only, because they're unique 987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on *defining* class loader, not *initiating* class loader. This isn't 988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * great, because it guarantees we will have to probe when multiple 989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class loaders are used. 990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note this does NOT try to load a class; it just finds a class that 992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has already been loaded. 993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If "unprepOkay" is set, this will return classes that have been added 995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to the hash table but are not yet fully loaded and linked. Otherwise, 996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * such classes are ignored. (The only place that should set "unprepOkay" 997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * is findClassNoInit(), which will wait for the prep to finish.) 998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns NULL if not found. 1000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmLookupClass(const char* descriptor, Object* loader, 1002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool unprepOkay) 1003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassMatchCriteria crit; 1005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void* found; 1006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash; 1007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project crit.descriptor = descriptor; 1009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project crit.loader = loader; 1010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hash = dvmComputeUtf8Hash(descriptor); 1011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("threadid=%d: dvmLookupClass searching for '%s' %p\n", 1013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThreadSelf()->threadId, descriptor, loader); 1014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = dvmHashTableLookup(gDvm.loadedClasses, hash, &crit, 1017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByCrit, false); 1018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class has been added to the hash table but isn't ready for use. 1022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're going to act like we didn't see it, so that the caller will 1023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * go through the full "find class" path, which includes locking the 1024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * object and waiting until it's ready. We could do that lock/wait 1025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * here, but this is an extremely rare case, and it's simpler to have 1026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the wait-for-class code centralized. 1027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (found != NULL && !unprepOkay && !dvmIsClassLinked(found)) { 1029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Ignoring not-yet-ready %s, using slow path\n", 1030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ((ClassObject*)found)->descriptor); 1031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = NULL; 1032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (ClassObject*) found; 1035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add a new class to the hash table. 1039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class is considered "new" if it doesn't match on both the class 1041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptor and the defining class loader. 1042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: we should probably have separate hash tables for each 1044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ClassLoader. This could speed up dvmLookupClass and 1045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * other common operations. It does imply a VM-visible data structure 1046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for each ClassLoader object with loaded classes, which we don't 1047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have yet. 1048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmAddClassToHash(ClassObject* clazz) 1050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void* found; 1052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash; 1053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hash = dvmComputeUtf8Hash(clazz->descriptor); 1055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = dvmHashTableLookup(gDvm.loadedClasses, hash, clazz, 1058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByClass, true); 1059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ dvmAddClassToHash '%s' %p (isnew=%d) --> %p\n", 1062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader, 1063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (found == (void*) clazz), clazz); 1064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmCheckClassTablePerf(); 1066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* can happen if two threads load the same class simultaneously */ 1068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (found == (void*) clazz); 1069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if 0 1072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compute hash value for a class. 1074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectu4 hashcalcClass(const void* item) 1076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmComputeUtf8Hash(((const ClassObject*) item)->descriptor); 1078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Check the performance of the "loadedClasses" hash table. 1082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmCheckClassTablePerf(void) 1084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableProbeCount(gDvm.loadedClasses, hashcalcClass, 1087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByClass); 1088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Remove a class object from the hash table. 1094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void removeClassFromHash(ClassObject* clazz) 1096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ removeClassFromHash '%s'\n", clazz->descriptor); 1098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash = dvmComputeUtf8Hash(clazz->descriptor); 1100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmHashTableRemove(gDvm.loadedClasses, hash, clazz)) 1103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Hash table remove failed on class '%s'\n", clazz->descriptor); 1104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 1110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class creation 1111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 1112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set clazz->serialNumber to the next available value. 1116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This usually happens *very* early in class creation, so don't expect 1118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything else in the class to be ready. 1119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetClassSerialNumber(ClassObject* clazz) 1121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 oldValue, newValue; 1123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->serialNumber == 0); 1125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { 1127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldValue = gDvm.classSerialNumber; 1128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newValue = oldValue + 1; 1129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } while (!ATOMIC_CMP_SWAP(&gDvm.classSerialNumber, oldValue, newValue)); 1130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->serialNumber = (u4) oldValue; 1132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), using the specified 1137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * initiating ClassLoader. 1138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class will be loaded and initialized if it has not already been. 1140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If necessary, the superclass will be loaded. 1141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class can't be found, returns NULL with an appropriate exception 1143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * raised. 1144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindClass(const char* descriptor, Object* loader) 1146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindClassNoInit(descriptor, loader); 1150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL && clazz->status < CLASS_INITIALIZED) { 1151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* initialize class */ 1152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz)) { 1153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init failed; leave it in the list, marked as bad */ 1154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 1155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_ERROR); 1156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), using the specified 1165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * initiating ClassLoader. 1166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class will be loaded if it has not already been, as will its 1168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass. It will not be initialized. 1169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class can't be found, returns NULL with an appropriate exception 1171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * raised. 1172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindClassNoInit(const char* descriptor, 1174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader) 1175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(descriptor != NULL); 1177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //assert(loader != NULL); 1178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("FindClassNoInit '%s' %p\n", descriptor, loader); 1180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*descriptor == '[') { 1182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Array class. Find in table, generate if not found. 1184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmFindArrayClass(descriptor, loader); 1186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Regular class. Find in table, load if not found. 1189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != NULL) { 1191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassFromLoaderNoInit(descriptor, loader); 1192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmFindSystemClassNoInit(descriptor); 1194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load the named class (by descriptor) from the specified class 1200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader. This calls out to let the ClassLoader object do its thing. 1201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns with NULL and an exception raised on error. 1203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassFromLoaderNoInit(const char* descriptor, 1205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader) 1206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("##### findClassFromLoaderNoInit (%s,%p)\n", 1208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // descriptor, loader); 1209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 1211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader != NULL); 1214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Do we already have it? 1217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class loader code does the "is it already loaded" check as 1219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * well. However, this call is much faster than calling through 1220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interpreted code. Doing this does mean that in the common case 1221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (365 out of 420 calls booting the sim) we're doing the 1222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * lookup-by-descriptor twice. It appears this is still a win, so 1223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm keeping it in. 1224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, false); 1226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL) { 1227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Already loaded: %s %p\n", descriptor, loader); 1228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Not already loaded: %s %p\n", descriptor, loader); 1231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* dotName = NULL; 1234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StringObject* nameObj = NULL; 1235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* excep; 1236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* loadClass; 1237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* convert "Landroid/debug/Stuff;" to "android.debug.Stuff" */ 1239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dotName = dvmDescriptorToDot(descriptor); 1240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dotName == NULL) { 1241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/OutOfMemoryError;", NULL); 1242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project nameObj = dvmCreateStringFromCstr(dotName, ALLOC_DEFAULT); 1245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (nameObj == NULL) { 1246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 1247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // TODO: cache the vtable offset 1251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadClass = dvmFindVirtualMethodHierByDescriptor(loader->clazz, "loadClass", 1252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "(Ljava/lang/String;)Ljava/lang/Class;"); 1253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loadClass == NULL) { 1254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Couldn't find loadClass in ClassLoader\n"); 1255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepBegin(); 1260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Invoke loadClass(). This will probably result in a couple of 1264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exceptions being thrown, because the ClassLoader.loadClass() 1265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implementation eventually calls VMClassLoader.loadClass to see if 1266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the bootstrap class loader can find it before doing its own load. 1267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- Invoking loadClass(%s, %p)\n", dotName, loader); 1269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue result; 1270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, loadClass, loader, &result, nameObj); 1271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = (ClassObject*) result.l; 1272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepEnd(); 1275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project excep = dvmGetException(self); 1278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (excep != NULL) { 1279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if DVM_SHOW_EXCEPTION >= 2 1280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGD("NOTE: loadClass '%s' %p threw exception %s\n", 1281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dotName, loader, excep->clazz->descriptor); 1282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc(excep, self); 1284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(self); 1285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowChainedExceptionWithClassMessage( 1286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/NoClassDefFoundError;", descriptor, excep); 1287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(excep, self); 1288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL); 1292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddInitiatingLoader(clazz, loader); 1295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- Successfully loaded %s %p (thisldr=%p clazz=%p)\n", 1297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, clazz->classLoader, loader, clazz); 1298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 1300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*)nameObj, NULL); 1301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(dotName); 1302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load the named class (by descriptor) from the specified DEX file. 1307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Used by class loaders to instantiate a class object from a 1308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * VM-managed DEX. 1309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmDefineClass(DvmDex* pDvmDex, const char* descriptor, 1311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* classLoader) 1312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pDvmDex != NULL); 1314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassNoInit(descriptor, classLoader, pDvmDex); 1316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), scanning through the 1321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bootclasspath if it hasn't already been loaded. 1322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "descriptor" looks like "Landroid/debug/Stuff;". 1324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Uses NULL as the defining class loader. 1326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindSystemClass(const char* descriptor) 1328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindSystemClassNoInit(descriptor); 1332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL && clazz->status < CLASS_INITIALIZED) { 1333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* initialize class */ 1334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz)) { 1335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init failed; leave it in the list, marked as bad */ 1336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 1337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_ERROR); 1338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), searching for it in the 1347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bootclasspath. 1348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, this returns NULL with an exception raised. 1350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindSystemClassNoInit(const char* descriptor) 1352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassNoInit(descriptor, NULL, NULL); 1354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor). If it's not already loaded, 1358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we load it and link it, but don't execute <clinit>. (The VM has 1359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * specific limitations on which events can cause initialization.) 1360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If "pDexFile" is NULL, we will search the bootclasspath for an entry. 1362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, this returns NULL with an exception raised. 1364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: we need to return an indication of whether we loaded the class or 1366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * used an existing definition. If somebody deliberately tries to load a 1367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class twice in the same class loader, they should get a LinkageError, 1368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but inadvertent simultaneous class references should "just work". 1369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassNoInit(const char* descriptor, Object* loader, 1371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex) 1372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 1374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool profilerNotified = false; 1377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != NULL) { 1380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("#### findClassNoInit(%s,%p,%p)\n", descriptor, loader, 1381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex->pDexFile); 1382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't expect an exception to be raised at this point. The 1386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exception handling code is good about managing this. This *can* 1387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * happen if a JNI lookup fails and the JNI code doesn't do any 1388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * error checking before doing another class lookup, so we may just 1389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * want to clear this and restore it on exit. If we don't, some kinds 1390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of failures can't be detected without rearranging other stuff. 1391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Most often when we hit this situation it means that something is 1393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * broken in the VM or in JNI code, so I'm keeping it in place (and 1394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * making it an informative abort rather than an assert). 1395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 1397504e9f4441c3a013047931d24a978523a26fde2dAndy McFadden LOGE("Class lookup %s attempted while exception %s pending\n", 1398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, dvmGetException(self)->clazz->descriptor); 1399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDumpAllThreads(false); 1400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 1401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, true); 1404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) { 1405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 1406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepBegin(); 1409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project profilerNotified = true; 1410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u8 startTime = dvmGetThreadCpuTimeNsec(); 1414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDvmDex == NULL) { 1417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader == NULL); /* shouldn't be here otherwise */ 1418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = searchBootPathForClass(descriptor, &pClassDef); 1419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 1421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDvmDex == NULL || pClassDef == NULL) { 14247fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden if (gDvm.noClassDefFoundErrorObj != NULL) { 14257fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden /* usual case -- use prefabricated object */ 14267fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden dvmSetException(self, gDvm.noClassDefFoundErrorObj); 14277fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden } else { 14287fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden /* dexopt case -- can't guarantee prefab (core.jar) */ 14297fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden dvmThrowExceptionWithClassMessage( 14307fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden "Ljava/lang/NoClassDefFoundError;", descriptor); 14317fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden } 1432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found a match, try to load it */ 1436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = loadClassFromDex(pDvmDex, pClassDef, loader); 1437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 1438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* class was found but had issues */ 1439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Lock the class while we link it so other threads must wait for us 1445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to finish. Set the "initThreadId" so we can identify recursive 1446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * invocation. 1447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 1449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = self->threadId; 1450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add to hash table so lookups succeed. 1453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * [Are circular references possible when linking a class?] 1455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->classLoader == loader); 1457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmAddClassToHash(clazz)) { 1458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Another thread must have loaded the class after we 1460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * started but before we finished. Discard what we've 1461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * done and leave some hints for the GC. 1462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (Yes, this happens.) 1464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGW("WOW: somebody loaded %s simultaneously\n", descriptor); 1466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = 0; 1467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Let the GC free the class. 1470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.unlinkedJavaLangClass); 1472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Grab the winning class. 1475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, true); 1477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL); 1478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto got_class; 1479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoadWithTime('>', clazz, startTime); 1484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Prepare and resolve. 1487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmLinkClass(clazz, false)) { 1489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 1490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Make note of the error and clean up the class. 1492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project removeClassFromHash(clazz); 1494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 1495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFreeClassInnards(clazz); 1496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Let any waiters know. 1498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = 0; 1500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 1501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOG(LOG_INFO, "DVMLINK FAILED FOR CLASS ", "%s in %s\n", 1505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, get_process_name()); 1506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: It would probably be better to use a new type code here (instead of '<') to 1509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * indicate the failure. This change would require a matching change in the parser 1510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and analysis code in frameworks/base/tools/preload. 1511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('<', clazz); 1513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.optimizing) { 1516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* happens with "external" libs */ 1517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Link of class '%s' failed\n", descriptor); 1518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Link of class '%s' failed\n", descriptor); 1520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 1524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add class stats to global counters. 1528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: these should probably be atomic ops. 1530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numLoadedClasses++; 1532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredMethods += 1533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount + clazz->directMethodCount; 1534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredInstFields += clazz->ifieldCount; 1535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredStaticFields += clazz->sfieldCount; 1536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache pointers to basic classes. We want to use these in 1539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * various places, and it's easiest to initialize them on first 1540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * use rather than trying to force them to initialize (startup 1541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ordering makes it weird). 1542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangObject == NULL && 1544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project strcmp(descriptor, "Ljava/lang/Object;") == 0) 1545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* It should be impossible to get here with anything 1547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but the bootclasspath loader. 1548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader == NULL); 1550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangObject = clazz; 1551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('<', clazz); 1555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectgot_class: 1559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsClassLinked(clazz) && clazz->status != CLASS_ERROR) { 1560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can race with other threads for class linking. We should 1562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * never get here recursively; doing so indicates that two 1563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * classes have circular dependencies. 1564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * One exception: we force discovery of java.lang.Class in 1566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmLinkClass(), and Class has Object as its superclass. So 1567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * if the first thing we ever load is Object, we will init 1568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Object->Class->Object. The easiest way to avoid this is to 1569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ensure that Object is never the first thing we look up, so 1570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we get Foo->Class->Object instead. 1571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 1573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsClassLinked(clazz) && 1574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId == self->threadId) 1575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Recursive link on class %s\n", clazz->descriptor); 1577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage( 1579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ClassCircularityError;", clazz->descriptor); 1580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("WAITING for '%s' (owner=%d)\n", 1584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->initThreadId); 1585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (!dvmIsClassLinked(clazz) && clazz->status != CLASS_ERROR) { 1586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectWait(self, (Object*) clazz, 0, 0, false); 1587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 1591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Somebody else tried to load this and failed. We need to raise 1593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception and report failure. 1594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 1596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* check some invariants */ 1602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmIsClassLinked(clazz)); 1603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.classJavaLangClass != NULL); 1604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.classJavaLangClass); 1605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != gDvm.classJavaLangObject) { 1606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super == NULL) { 1607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Non-Object has no superclass (gDvm.classJavaLangObject=%p)\n", 1608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangObject); 1609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 1610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(clazz)) { 1613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("class=%s vtableCount=%d, virtualMeth=%d\n", 1614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->vtableCount, 1615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->virtualMethodCount); 1616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtableCount >= clazz->virtualMethodCount); 1617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Normally class objects are initialized before we instantiate them, 1621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but we can't do that with java.lang.Class (chicken, meet egg). We 1622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * do it explicitly here. 1623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The verifier could call here to find Class while verifying Class, 1625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * so we need to check for CLASS_VERIFYING as well as !initialized. 1626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == gDvm.classJavaLangClass && !dvmIsClassInitialized(clazz) && 1628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project !(clazz->status == CLASS_VERIFYING)) 1629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ explicitly initializing %s\n", clazz->descriptor); 1631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmInitClass(clazz); 1632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 1635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (profilerNotified) 1637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepEnd(); 1638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL || dvmCheckException(self)); 1640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Helper for loadClassFromDex, which takes a DexClassDataHeader and 1645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * encoded data pointer in addition to the other arguments. 1646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex0(DvmDex* pDvmDex, 1648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, const DexClassDataHeader* pHeader, 1649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u1* pEncodedData, Object* classLoader) 1650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* newClass = NULL; 1652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFile* pDexFile; 1653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 1654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 1655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = pDvmDex->pDexFile; 1657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexGetClassDescriptor(pDexFile, pClassDef); 1658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Make sure the aren't any "bonus" flags set, since we use them for 1661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * runtime state. 1662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((pClassDef->accessFlags & ~EXPECTED_FILE_FLAGS) != 0) { 1664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Invalid file flags in class %s: %04x\n", 1665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, pClassDef->accessFlags); 1666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Allocate storage for the class object on the GC heap, so that other 1671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * objects can have references to it. We bypass the usual mechanism 1672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (allocObject), because we don't have all the bits and pieces yet. 1673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note that we assume that java.lang.Class does not override 1675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finalize(). 1676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 167703aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes newClass = (ClassObject*) dvmMalloc(sizeof(*newClass) + 167803aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes sizeof(StaticField) * pHeader->staticFieldsSize, 167903aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes ALLOC_DEFAULT); 1680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newClass == NULL) 1681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Until the class is loaded and linked, use a placeholder 1684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * obj->clazz value as a hint to the GC. We don't want 1685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the GC trying to scan the object while it's full of Idx 1686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * values. Also, the real java.lang.Class may not exist 1687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * yet. 1688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DVM_OBJECT_INIT(&newClass->obj, gDvm.unlinkedJavaLangClass); 1690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetClassSerialNumber(newClass); 1692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->descriptor = descriptor; 1693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(newClass->descriptorAlloc == NULL); 1694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->accessFlags = pClassDef->accessFlags; 1695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->classLoader = classLoader; 1696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->pDvmDex = pDvmDex; 1697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->primitiveType = PRIM_NOT; 1698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Stuff the superclass index into the object pointer field. The linker 1701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pulls it out and replaces it with a resolved ClassObject pointer. 1702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm doing it this way (rather than having a dedicated superclassIdx 1703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field) to save a few bytes of overhead per class. 1704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * newClass->super is not traversed or freed by dvmFreeClassInnards, so 1706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this is safe. 1707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(sizeof(u4) == sizeof(ClassObject*)); 1709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->super = (ClassObject*) pClassDef->superclassIdx; 1710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Stuff class reference indices into the pointer fields. 1713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The elements of newClass->interfaces are not traversed or freed by 1715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmFreeClassInnards, so this is GC-safe. 1716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexTypeList* pInterfacesList; 1718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pInterfacesList = dexGetInterfacesList(pDexFile, pClassDef); 1719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pInterfacesList != NULL) { 1720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaceCount = pInterfacesList->size; 1721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaces = (ClassObject**) dvmLinearAlloc(classLoader, 1722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaceCount * sizeof(ClassObject*)); 1723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < newClass->interfaceCount; i++) { 1725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexTypeItem* pType = dexGetTypeItem(pInterfacesList, i); 1726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaces[i] = (ClassObject*)(u4) pType->typeIdx; 1727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->interfaces); 1729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* load field definitions */ 1732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 173403aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * Over-allocate the class object and append static field info 173503aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * onto the end. It's fixed-size and known at alloc time. This 173603aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * seems to increase zygote sharing. Heap compaction will have to 173703aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * be careful if it ever tries to move ClassObject instances, 173803aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * because we pass Field pointers around internally. But at least 173903aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * now these Field pointers are in the object heap. 1740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->staticFieldsSize != 0) { 1743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* static fields stay on system heap; field data isn't "write once" */ 1744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->staticFieldsSize; 1745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexField field; 1747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->sfieldCount = count; 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 loadSFieldFromDex(newClass, &field, &newClass->sfields[i]); 1752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->instanceFieldsSize != 0) { 1756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->instanceFieldsSize; 1757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexField field; 1759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->ifieldCount = count; 1761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->ifields = (InstField*) dvmLinearAlloc(classLoader, 1762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(InstField)); 1763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataField(&pEncodedData, &field, &lastIndex); 1765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadIFieldFromDex(newClass, &field, &newClass->ifields[i]); 1766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->ifields); 1768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 177099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* 177199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * Load method definitions. We do this in two batches, direct then 177299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * virtual. 177399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * 177499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * If register maps have already been generated for this class, and 177599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * precise GC is enabled, we pull out pointers to them. We know that 177699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * they were streamed to the DEX file in the same order in which the 177799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * methods appear. 177899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * 177999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * If the class wasn't pre-verified, the maps will be generated when 178099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * the class is verified during class initialization. 178199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project */ 178299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project u4 classDefIdx = dexGetIndexForClassDef(pDexFile, pClassDef); 178399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project const void* classMapData; 178499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project u4 numMethods; 178599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project 178699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (gDvm.preciseGc) { 178799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project classMapData = 1788d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden dvmRegisterMapGetClassData(pDexFile, classDefIdx, &numMethods); 178999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project 179099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* sanity check */ 179199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (classMapData != NULL && 179299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project pHeader->directMethodsSize + pHeader->virtualMethodsSize != numMethods) 179399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project { 179499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project LOGE("ERROR: in %s, direct=%d virtual=%d, maps have %d\n", 179599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->descriptor, pHeader->directMethodsSize, 179699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project pHeader->virtualMethodsSize, numMethods); 179799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert(false); 179899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project classMapData = NULL; /* abandon */ 179999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 180099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } else { 180199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project classMapData = NULL; 180299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 1803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->directMethodsSize != 0) { 1805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->directMethodsSize; 1806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexMethod method; 1808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->directMethodCount = count; 1810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->directMethods = (Method*) dvmLinearAlloc(classLoader, 1811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(Method)); 1812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataMethod(&pEncodedData, &method, &lastIndex); 1814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadMethodFromDex(newClass, &method, &newClass->directMethods[i]); 181599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (classMapData != NULL) { 1816d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden const RegisterMap* pMap = dvmRegisterMapGetNext(&classMapData); 1817d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden if (dvmRegisterMapGetFormat(pMap) != kRegMapFormatNone) { 181899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->directMethods[i].registerMap = pMap; 181999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* TODO: add rigorous checks */ 182099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert((newClass->directMethods[i].registersSize+7) / 8 == 182199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->directMethods[i].registerMap->regWidth); 182299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 182399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 1824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->directMethods); 1826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->virtualMethodsSize != 0) { 1829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->virtualMethodsSize; 1830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexMethod method; 1832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->virtualMethodCount = count; 1834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->virtualMethods = (Method*) dvmLinearAlloc(classLoader, 1835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(Method)); 1836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataMethod(&pEncodedData, &method, &lastIndex); 1838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadMethodFromDex(newClass, &method, &newClass->virtualMethods[i]); 183999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (classMapData != NULL) { 1840d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden const RegisterMap* pMap = dvmRegisterMapGetNext(&classMapData); 1841d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden if (dvmRegisterMapGetFormat(pMap) != kRegMapFormatNone) { 184299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->virtualMethods[i].registerMap = pMap; 184399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* TODO: add rigorous checks */ 184499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert((newClass->virtualMethods[i].registersSize+7) / 8 == 184599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->virtualMethods[i].registerMap->regWidth); 184699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 184799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 1848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->virtualMethods); 1850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->sourceFile = dexGetSourceFile(pDexFile, pClassDef); 1853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->status = CLASS_LOADED; 1854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* caller must call dvmReleaseTrackedAlloc */ 1856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return newClass; 1857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Try to load the indicated class from the specified DEX file. 1861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This is effectively loadClass()+defineClass() for a DexClassDef. The 1863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loading was largely done when we crunched through the DEX. 1864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns NULL on failure. If we locate the class but encounter an error 1866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * while processing it, an appropriate exception is thrown. 1867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex(DvmDex* pDvmDex, 1869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, Object* classLoader) 1870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result; 1872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexClassDataHeader header; 1873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u1* pEncodedData; 1874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFile* pDexFile; 1875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((pDvmDex != NULL) && (pClassDef != NULL)); 1877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = pDvmDex->pDexFile; 1878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) { 1880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: loading '%s'...\n", 1881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexGetClassDescriptor(pDexFile, pClassDef)); 1882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pEncodedData = dexGetClassData(pDexFile, pClassDef); 1885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pEncodedData != NULL) { 1887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataHeader(&pEncodedData, &header); 1888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Provide an all-zeroes header for the rest of the loading. 1890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memset(&header, 0, sizeof(header)); 1891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = loadClassFromDex0(pDvmDex, pClassDef, &header, pEncodedData, 1894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project classLoader); 1895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass && (result != NULL)) { 1897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("[Loaded %s from DEX %p (cl=%p)]\n", 1898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result->descriptor, pDvmDex, classLoader); 1899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 1902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free anything in a ClassObject that was allocated on the system heap. 1906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The ClassObject itself is allocated on the GC heap, so we leave it for 1908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the garbage collector. 1909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: this may be called with a partially-constructed object. 1911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: there is no particular ordering imposed, so don't go poking at 1912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclasses. 1913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmFreeClassInnards(ClassObject* clazz) 1915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void *tp; 1917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 1918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) 1920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 1921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.classJavaLangClass || 1923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->obj.clazz == gDvm.unlinkedJavaLangClass); 1924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Guarantee that dvmFreeClassInnards can be called on a given 1926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class multiple times by clearing things out as we free them. 1927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't make any attempt at real atomicity here; higher 1928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * levels need to make sure that no two threads can free the 1929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * same ClassObject at the same time. 1930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: maybe just make it so the GC will never free the 1932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * innards of an already-freed class. 1933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: this #define isn't MT-safe -- the compiler could rearrange it. 1935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define NULL_AND_FREE(p) \ 1937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { \ 1938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((p) != NULL) { \ 1939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tp = (p); \ 1940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (p) = NULL; \ 1941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(tp); \ 1942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } \ 1943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } while (0) 1944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define NULL_AND_LINEAR_FREE(p) \ 1945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { \ 1946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((p) != NULL) { \ 1947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tp = (p); \ 1948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (p) = NULL; \ 1949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, tp); \ 1950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } \ 1951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } while (0) 1952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* arrays just point at Object's vtable; don't free vtable in this case. 1954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmIsArrayClass() checks clazz->descriptor, so we have to do this check 1955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * before freeing the name. 1956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = -1; 1958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsArrayClass(clazz)) { 1959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = NULL; 1960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->vtable); 1962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor = NULL; 1965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_FREE(clazz->descriptorAlloc); 1966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->directMethods != NULL) { 1968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *directMethods = clazz->directMethods; 1969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int directMethodCount = clazz->directMethodCount; 1970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->directMethods = NULL; 1971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->directMethodCount = -1; 1972b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadWrite(clazz->classLoader, directMethods); 1973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < directMethodCount; i++) { 1974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeMethodInnards(&directMethods[i]); 1975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1976b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadOnly(clazz->classLoader, directMethods); 1977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, directMethods); 1978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->virtualMethods != NULL) { 1980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *virtualMethods = clazz->virtualMethods; 1981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int virtualMethodCount = clazz->virtualMethodCount; 1982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount = -1; 1983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods = NULL; 1984b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadWrite(clazz->classLoader, virtualMethods); 1985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < virtualMethodCount; i++) { 1986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeMethodInnards(&virtualMethods[i]); 1987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1988b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadOnly(clazz->classLoader, virtualMethods); 1989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, virtualMethods); 1990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 19922c98747b403970ef4b3352e271633f93935b9825Barry Hayes InitiatingLoaderList *loaderList = dvmGetInitiatingLoaderList(clazz); 19932c98747b403970ef4b3352e271633f93935b9825Barry Hayes loaderList->initiatingLoaderCount = -1; 19942c98747b403970ef4b3352e271633f93935b9825Barry Hayes NULL_AND_FREE(loaderList->initiatingLoaders); 1995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaceCount = -1; 1997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->interfaces); 1998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftableCount = -1; 2000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->iftable); 2001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPoolCount = -1; 2003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->ifviPool); 2004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->sfieldCount = -1; 200603aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes /* The sfields are attached to the ClassObject, and will be freed 200703aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * with it. */ 2008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldCount = -1; 2010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->ifields); 2011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#undef NULL_AND_FREE 2013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#undef NULL_AND_LINEAR_FREE 2014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free anything in a Method that was allocated on the system heap. 201899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * 201999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * The containing class is largely torn down by this point. 2020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeMethodInnards(Method* meth) 2022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if 0 2024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->exceptions); 2025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->lines); 2026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->locals); 2027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 202899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project 202999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* 203099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * Some register maps are allocated on the heap, either because of late 203199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * verification or because we're caching an uncompressed form. 203299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project */ 203399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project const RegisterMap* pMap = meth->registerMap; 2034d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden if (pMap != NULL && dvmRegisterMapGetOnHeap(pMap)) { 203599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project dvmFreeRegisterMap((RegisterMap*) pMap); 203699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project meth->registerMap = NULL; 203799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 2038b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2039b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden /* 2040b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * We may have copied the instructions. 2041b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden */ 2042b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden if (IS_METHOD_FLAG_SET(meth, METHOD_ISWRITABLE)) { 2043b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* methodDexCode = (DexCode*) dvmGetMethodCode(meth); 2044b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearFree(meth->clazz->classLoader, methodDexCode); 2045b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden } 2046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Clone a Method, making new copies of anything that will be freed up 205099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * by freeMethodInnards(). This is used for "miranda" methods. 2051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void cloneMethod(Method* dst, const Method* src) 2053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 205499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (src->registerMap != NULL) { 205599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project LOGE("GLITCH: only expected abstract methods here\n"); 205699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project LOGE(" cloning %s.%s\n", src->clazz->descriptor, src->name); 205799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project dvmAbort(); 205899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 2059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(dst, src, sizeof(Method)); 2060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pull the interesting pieces out of a DexMethod. 2064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The DEX file isn't going anywhere, so we don't need to make copies of 2066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the code area. 2067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadMethodFromDex(ClassObject* clazz, const DexMethod* pDexMethod, 2069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth) 2070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexMethodId* pMethodId; 2073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexCode* pDexCode; 2074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pMethodId = dexGetMethodId(pDexFile, pDexMethod->methodIdx); 2076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name = dexStringById(pDexFile, pMethodId->nameIdx); 2078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexProtoSetFromMethodId(&meth->prototype, pDexFile, pMethodId); 2079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->shorty = dexProtoGetShorty(&meth->prototype); 2080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags = pDexMethod->accessFlags; 2081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->clazz = clazz; 2082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->jniArgInfo = 0; 2083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareNameDescriptorAndMethod("finalize", "()V", meth) == 0) { 2085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexCode = dexGetCode(pDexFile, pDexMethod); 2089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDexCode != NULL) { 2090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* integer constants, copy over for faster access */ 2091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->registersSize = pDexCode->registersSize; 2092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->insSize = pDexCode->insSize; 2093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->outsSize = pDexCode->outsSize; 2094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* pointer to code area */ 2096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->insns = pDexCode->insns; 2097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't have a DexCode block, but we still want to know how 2100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * much space is needed for the arguments (so we don't have to 2101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compute it later). We also take this opportunity to compute 2102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * JNI argument info. 2103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We do this for abstract methods as well, because we want to 2105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be able to substitute our exception-throwing "stub" in. 2106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int argsSize = dvmComputeMethodArgsSize(meth); 2108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsStaticMethod(meth)) 2109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project argsSize++; 2110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->registersSize = meth->insSize = argsSize; 2111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->outsSize == 0); 2112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->insns == NULL); 2113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsNativeMethod(meth)) { 2115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc = dvmResolveNativeMethod; 2116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->jniArgInfo = computeJniArgInfo(&meth->prototype); 2117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 212196516932f1557d8f48a8b2dbbb885af01a11ef6eAndy McFadden#if 0 /* replaced with private/read-write mapping */ 2122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2123b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * We usually map bytecode directly out of the DEX file, which is mapped 2124b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * shared read-only. If we want to be able to modify it, we have to make 2125b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * a new copy. 2126b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * 2127b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * Once copied, the code will be in the LinearAlloc region, which may be 2128b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * marked read-only. 2129b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * 2130b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * The bytecode instructions are embedded inside a DexCode structure, so we 2131b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * need to copy all of that. (The dvmGetMethodCode function backs up the 2132b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * instruction pointer to find the start of the DexCode.) 2133b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden */ 2134b51ea11c70602918c42764bfafe92a997d3b1803Andy McFaddenvoid dvmMakeCodeReadWrite(Method* meth) 2135b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden{ 2136b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* methodDexCode = (DexCode*) dvmGetMethodCode(meth); 2137b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2138b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden if (IS_METHOD_FLAG_SET(meth, METHOD_ISWRITABLE)) { 2139b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadWrite(meth->clazz->classLoader, methodDexCode); 2140b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden return; 2141b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden } 2142b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2143b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden assert(!dvmIsNativeMethod(meth) && !dvmIsAbstractMethod(meth)); 2144b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2145b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden size_t dexCodeSize = dexGetDexCodeSize(methodDexCode); 2146b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden LOGD("Making a copy of %s.%s code (%d bytes)\n", 2147b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden meth->clazz->descriptor, meth->name, dexCodeSize); 2148b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2149b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* newCode = 2150b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden (DexCode*) dvmLinearAlloc(meth->clazz->classLoader, dexCodeSize); 2151b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden memcpy(newCode, methodDexCode, dexCodeSize); 2152b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2153b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden meth->insns = newCode->insns; 2154b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden SET_METHOD_FLAG(meth, METHOD_ISWRITABLE); 2155b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden} 2156b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2157b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden/* 2158b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * Mark the bytecode read-only. 2159b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * 2160b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * If the contents of the DexCode haven't actually changed, we could revert 2161b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * to the original shared page. 2162b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden */ 2163b51ea11c70602918c42764bfafe92a997d3b1803Andy McFaddenvoid dvmMakeCodeReadOnly(Method* meth) 2164b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden{ 2165b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* methodDexCode = (DexCode*) dvmGetMethodCode(meth); 2166b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden LOGV("+++ marking %p read-only\n", methodDexCode); 2167b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadOnly(meth->clazz->classLoader, methodDexCode); 2168b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden} 216996516932f1557d8f48a8b2dbbb885af01a11ef6eAndy McFadden#endif 2170b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2171b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2172b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden/* 2173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * jniArgInfo (32-bit int) layout: 2174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * SRRRHHHH HHHHHHHH HHHHHHHH HHHHHHHH 2175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * S - if set, do things the hard way (scan the signature) 2177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * R - return-type enumeration 2178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * H - target-specific hints 2179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This info is used at invocation time by dvmPlatformInvoke. In most 2181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * cases, the target-specific hints allow dvmPlatformInvoke to avoid 2182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * having to fully parse the signature. 2183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The return-type bits are always set, even if target-specific hint bits 2185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * are unavailable. 2186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int computeJniArgInfo(const DexProto* proto) 2188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* sig = dexProtoGetShorty(proto); 2190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int returnType, padFlags, jniArgInfo; 2191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char sigByte; 2192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int stackOffset, padMask; 2193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hints; 2194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* The first shorty character is the return type. */ 2196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (*(sig++)) { 2197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'V': 2198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_VOID; 2199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'F': 2201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_FLOAT; 2202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'D': 2204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_DOUBLE; 2205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'J': 2207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_S8; 2208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2209e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee case 'Z': 2210e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee case 'B': 2211e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee returnType = DALVIK_JNI_RETURN_S1; 2212e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee break; 2213e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee case 'C': 2214e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee returnType = DALVIK_JNI_RETURN_U2; 2215e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee break; 2216e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee case 'S': 2217e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee returnType = DALVIK_JNI_RETURN_S2; 2218e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee break; 2219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 2220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_S4; 2221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project jniArgInfo = returnType << DALVIK_JNI_RETURN_SHIFT; 2225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hints = dvmPlatformInvokeHints(proto); 2227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (hints & DALVIK_JNI_NO_ARG_INFO) { 2229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project jniArgInfo |= DALVIK_JNI_NO_ARG_INFO; 2230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((hints & DALVIK_JNI_RETURN_MASK) == 0); 2232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project jniArgInfo |= hints; 2233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return jniArgInfo; 2236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load information about a static field. 2240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This also "prepares" static fields by initializing them 2242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to their "standard default values". 2243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadSFieldFromDex(ClassObject* clazz, 2245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexSField, StaticField* sfield) 2246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFieldId* pFieldId; 2249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFieldId = dexGetFieldId(pDexFile, pDexSField->fieldIdx); 2251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.clazz = clazz; 2253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.name = dexStringById(pDexFile, pFieldId->nameIdx); 2254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.signature = dexStringByTypeIdx(pDexFile, pFieldId->typeIdx); 2255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.accessFlags = pDexSField->accessFlags; 2256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Static object field values are set to "standard default values" 2258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (null or 0) until the class is initialized. We delay loading 2259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * constant values from the class until that time. 2260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //sfield->value.j = 0; 2262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(sfield->value.j == 0LL); // cleared earlier with calloc 2263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef PROFILE_FIELD_ACCESS 2265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.gets = sfield->field.puts = 0; 2266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load information about an instance field. 2271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadIFieldFromDex(ClassObject* clazz, 2273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexIField, InstField* ifield) 2274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFieldId* pFieldId; 2277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFieldId = dexGetFieldId(pDexFile, pDexIField->fieldIdx); 2279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.clazz = clazz; 2281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.name = dexStringById(pDexFile, pFieldId->nameIdx); 2282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.signature = dexStringByTypeIdx(pDexFile, pFieldId->typeIdx); 2283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.accessFlags = pDexIField->accessFlags; 2284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifndef NDEBUG 2285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(ifield->byteOffset == 0); // cleared earlier with calloc 2286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->byteOffset = -1; // make it obvious if we fail to set later 2287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef PROFILE_FIELD_ACCESS 2290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.gets = ifield->field.puts = 0; 2291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache java.lang.ref.Reference fields and methods. 2296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 22976daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayesstatic bool precacheReferenceOffsets(ClassObject* clazz) 2298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *meth; 2300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We trick the GC object scanner by not counting 2303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java.lang.ref.Reference.referent as an object 2304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field. It will get explicitly scanned as part 2305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of the reference-walking process. 2306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the object field named "referent" and put it 2308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * just after the list of object reference fields. 2309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->ifields); 2311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldRefCount; i++) { 2312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField *pField = &clazz->ifields[i]; 2313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(pField->field.name, "referent") == 0) { 2314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int targetIndex; 2315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Swap this field with the last object field. 2317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project targetIndex = clazz->ifieldRefCount - 1; 2319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != targetIndex) { 2320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField *swapField = &clazz->ifields[targetIndex]; 2321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField tmpField; 2322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int tmpByteOffset; 2323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* It's not currently strictly necessary 2325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for the fields to be in byteOffset order, 2326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but it's more predictable that way. 2327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmpByteOffset = swapField->byteOffset; 2329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField->byteOffset = pField->byteOffset; 2330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = tmpByteOffset; 2331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmpField = *swapField; 2333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *swapField = *pField; 2334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pField = tmpField; 2335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* One fewer object field (wink wink). 2338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount--; 2340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i--; /* don't trip "didn't find it" test if field was last */ 2341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifields); 2345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i == clazz->ifieldRefCount) { 2346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to reorder 'referent' in %s\n", clazz->descriptor); 2347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 2348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Cache pretty much everything about Reference so that 2351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we don't need to call interpreted code when clearing/enqueueing 2352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * references. This is fragile, so we'll be paranoid. 2353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangRefReference = clazz; 2355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_referent = 2357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "referent", "Ljava/lang/Object;"); 2359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_referent >= 0); 2360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_queue = 2362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "queue", "Ljava/lang/ref/ReferenceQueue;"); 2364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_queue >= 0); 2365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_queueNext = 2367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "queueNext", "Ljava/lang/ref/Reference;"); 2369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_queueNext >= 0); 2370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_vmData = 2372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "vmData", "I"); 2374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_vmData >= 0); 2375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* enqueueInternal() is private and thus a direct method. */ 2377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = dvmFindDirectMethodByDescriptor(clazz, "enqueueInternal", "()Z"); 2378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth != NULL); 2379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.methJavaLangRefReference_enqueueInternal = meth; 2380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 2382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 23866daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * Set the bitmap of reference offsets, refOffsets, from the ifields 23876daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * list. 23886daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes */ 23896daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayesstatic void computeRefOffsets(ClassObject* clazz) 23906daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes{ 23916daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes if (clazz->super != NULL) { 23926daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes clazz->refOffsets = clazz->super->refOffsets; 23936daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes } else { 23946daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes clazz->refOffsets = 0; 23956daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes } 23966daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes /* 23976daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * If our superclass overflowed, we don't stand a chance. 23986daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes */ 23996daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes if (clazz->refOffsets != CLASS_WALK_SUPER) { 24006daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes InstField *f; 24016daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes int i; 24026daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes 24036daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes /* All of the fields that contain object references 24046daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * are guaranteed to be at the beginning of the ifields list. 24056daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes */ 24066daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes f = clazz->ifields; 24076daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes const int ifieldRefCount = clazz->ifieldRefCount; 24086daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes for (i = 0; i < ifieldRefCount; i++) { 24096daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes /* 24106daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * Note that, per the comment on struct InstField, 24116daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * f->byteOffset is the offset from the beginning of 24126daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * obj, not the offset into obj->instanceData. 24136daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes */ 24142fbe6d15ed8d266ed55fb76e97f866dbd07d5fa6Andy McFadden assert(f->byteOffset >= (int) CLASS_SMALLEST_OFFSET); 24156daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes assert((f->byteOffset & (CLASS_OFFSET_ALIGNMENT - 1)) == 0); 24166daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes if (CLASS_CAN_ENCODE_OFFSET(f->byteOffset)) { 24176daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes u4 newBit = CLASS_BIT_FROM_OFFSET(f->byteOffset); 24186daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes assert(newBit != 0); 24196daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes clazz->refOffsets |= newBit; 24206daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes } else { 24216daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes clazz->refOffsets = CLASS_WALK_SUPER; 24226daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes break; 24236daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes } 24246daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes f++; 24256daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes } 24266daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes } 24276daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes} 24286daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes 24296daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes 24306daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes/* 2431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Link (prepare and resolve). Verification is deferred until later. 2432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This converts symbolic references into pointers. It's independent of 2434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the source file format. 2435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If "classesResolved" is false, we assume that superclassIdx and 2437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interfaces[] are holding class reference indices rather than pointers. 2438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class references will be resolved during link. (This is done when 2439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loading from DEX to avoid having to create additional storage to pass 2440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the indices around.) 2441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "false" with an exception pending on failure. 2443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmLinkClass(ClassObject* clazz, bool classesResolved) 2445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 superclassIdx = 0; 2447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool okay = false; 2448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool resolve_okay; 2449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int numInterfacesResolved = 0; 2450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) 2453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: linking '%s'...\n", clazz->descriptor); 2454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* "Resolve" the class. 2456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * At this point, clazz's reference fields contain Dex 2458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * file indices instead of direct object references. 2459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We need to translate those indices into real references, 2460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * while making sure that the GC doesn't sweep any of 2461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the referenced objects. 2462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The GC will avoid scanning this object as long as 2464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * clazz->obj.clazz is gDvm.unlinkedJavaLangClass. 2465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Once clazz is ready, we'll replace clazz->obj.clazz 2466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with gDvm.classJavaLangClass to let the GC know 2467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to look at it. 2468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.unlinkedJavaLangClass); 2470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* It's important that we take care of java.lang.Class 2472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * first. If we were to do this after looking up the 2473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass (below), Class wouldn't be ready when 2474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java.lang.Object needed it. 2475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note that we don't set clazz->obj.clazz yet. 2477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangClass == NULL) { 2479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->classLoader == NULL && 2480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project strcmp(clazz->descriptor, "Ljava/lang/Class;") == 0) 2481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangClass = clazz; 2483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangClass = 2485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindSystemClassNoInit("Ljava/lang/Class;"); 2486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangClass == NULL) { 2487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* should have thrown one */ 2488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 2489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.classJavaLangClass != NULL); 2494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Resolve all Dex indices so we can hand the ClassObject 2497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * over to the GC. If we fail at any point, we need to remove 2498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * any tracked references to avoid leaking memory. 2499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * All classes have a direct superclass, except for java/lang/Object. 2503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!classesResolved) { 2505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superclassIdx = (u4) clazz->super; /* unpack temp store */ 2506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super = NULL; 2507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, "Ljava/lang/Object;") == 0) { 2509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(!classesResolved); 2510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (superclassIdx != kDexNoIndex) { 2511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* TODO: is this invariant true for all java/lang/Objects, 2512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * regardless of the class loader? For now, assume it is. 2513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/ClassFormatError;", 2515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "java.lang.Object has a superclass"); 2516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Don't finalize objects whose classes use the 2520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * default (empty) Object.finalize(). 2521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLEAR_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!classesResolved) { 2525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (superclassIdx == kDexNoIndex) { 2526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 2527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "no superclass defined"); 2528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super = dvmResolveClass(clazz, superclassIdx, false); 2531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super == NULL) { 2532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 2533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.optimizing) { 2534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* happens with "external" libs */ 2535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Unable to resolve superclass of %s (%d)\n", 2536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, superclassIdx); 2537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Unable to resolve superclass of %s (%d)\n", 2539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, superclassIdx); 2540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* verify */ 2545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsFinalClass(clazz->super)) { 2546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' is final '%s'\n", 2547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IncompatibleClassChangeError;", 2549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass is final"); 2550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (dvmIsInterfaceClass(clazz->super)) { 2552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' is interface '%s'\n", 2553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IncompatibleClassChangeError;", 2555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass is an interface"); 2556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (!dvmCheckClassAccess(clazz, clazz->super)) { 2558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' (%s) is not accessible\n", 2559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IllegalAccessError;", 2561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass not accessible"); 2562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Don't let the GC reclaim the superclass. 2566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: shouldn't be needed; remove when things stabilize 2567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc((Object *)clazz->super, NULL); 2569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Inherit finalizability from the superclass. If this 2571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class also overrides finalize(), its CLASS_ISFINALIZABLE 2572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bit will already be set. 2573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz->super, CLASS_ISFINALIZABLE)) { 2575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* See if this class descends from java.lang.Reference 2579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and set the class flags appropriately. 2580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz->super, CLASS_ISREFERENCE)) { 2582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 superRefFlags; 2583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We've already determined the reference type of this 2585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * inheritance chain. Inherit reference-ness from the superclass. 2586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superRefFlags = GET_CLASS_FLAG_GROUP(clazz->super, 2588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISREFERENCE | 2589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISWEAKREFERENCE | 2590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISPHANTOMREFERENCE); 2591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, superRefFlags); 2592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (clazz->classLoader == NULL && 2593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super->classLoader == NULL && 2594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project strcmp(clazz->super->descriptor, 2595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/Reference;") == 0) 2596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 refFlags; 2598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This class extends Reference, which means it should 2600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be one of the magic Soft/Weak/PhantomReference classes. 2601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags = CLASS_ISREFERENCE; 2603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, 2604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/SoftReference;") == 0) 2605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Only CLASS_ISREFERENCE is set for soft references. 2607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (strcmp(clazz->descriptor, 2609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/WeakReference;") == 0) 2610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags |= CLASS_ISWEAKREFERENCE; 2612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (strcmp(clazz->descriptor, 2613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/PhantomReference;") == 0) 2614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags |= CLASS_ISPHANTOMREFERENCE; 2616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* No-one else is allowed to inherit directly 2618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * from Reference. 2619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project//xxx is this the right exception? better than an assertion. 2621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 2622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "illegal inheritance from Reference"); 2623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* The class should not have any reference bits set yet. 2627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(GET_CLASS_FLAG_GROUP(clazz, 2629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISREFERENCE | 2630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISWEAKREFERENCE | 2631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISPHANTOMREFERENCE) == 0); 2632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, refFlags); 2634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!classesResolved && clazz->interfaceCount > 0) { 2638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Resolve the interfaces implemented directly by this class. We 2640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stuffed the class index into the interface pointer slot. 2641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->interfaces); 2643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->interfaceCount; i++) { 2644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 interfaceIdx; 2645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project interfaceIdx = (u4) clazz->interfaces[i]; /* unpack temp store */ 2647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(interfaceIdx != kDexNoIndex); 2648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaces[i] = dvmResolveClass(clazz, interfaceIdx, false); 2650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->interfaces[i] == NULL) { 2651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 2654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* classDescriptor; 2657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project classDescriptor = dexStringByTypeIdx(pDexFile, interfaceIdx); 2658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.optimizing) { 2659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* happens with "external" libs */ 2660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Failed resolving %s interface %d '%s'\n", 2661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, interfaceIdx, classDescriptor); 2662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Failed resolving %s interface %d '%s'\n", 2664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, interfaceIdx, classDescriptor); 2665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_during_resolve; 2667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* are we allowed to implement this interface? */ 2670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmCheckClassAccess(clazz, clazz->interfaces[i])) { 2671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Interface '%s' is not accessible to '%s'\n", 2673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaces[i]->descriptor, clazz->descriptor); 2674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IllegalAccessError;", 2675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "interface not accessible"); 2676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_during_resolve; 2677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Don't let the GC reclaim the interface class. 2680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: shouldn't be needed; remove when things stabilize 2681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc((Object *)clazz->interfaces[i], NULL); 2683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project numInterfacesResolved++; 2684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("+++ found interface '%s'\n", 2686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaces[i]->descriptor); 2687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The ClassObject is now in a GC-able state. We let the GC 2693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * realize this by punching in the real class type, which is 2694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * always java.lang.Class. 2695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * After this line, clazz will be fair game for the GC. 2697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Every field that the GC will look at must now be valid: 2698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * - clazz->super 2699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * - class->classLoader 2700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * - clazz->sfields 2701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * - clazz->interfaces 2702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->obj.clazz = gDvm.classJavaLangClass; 2704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false) { 2706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_during_resolve: 2707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project resolve_okay = false; 2708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project resolve_okay = true; 2710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Now that the GC can scan the ClassObject, we can let 2714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * go of the explicit references we were holding onto. 2715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Either that or we failed, in which case we need to 2717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * release the references so we don't leak memory. 2718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object *)clazz->super, NULL); 2721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < numInterfacesResolved; i++) { 2723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object *)clazz->interfaces[i], NULL); 2724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!resolve_okay) { 2727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGW("resolve_okay is false\n"); 2728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Populate vtable. 2733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz)) { 2735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* no vtable; just set the method indices */ 2736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = clazz->virtualMethodCount; 2737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (count != (u2) count) { 2739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in interface '%s'\n", count, 2740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 2745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) 2747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].methodIndex = (u2) i; 2748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 2750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!createVtable(clazz)) { 2752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("failed creating vtable\n"); 2753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Populate interface method tables. Can alter the vtable. 2759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!createIftable(clazz)) 2761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Insert special-purpose "stub" method implementations. 2765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!insertMethodStubs(clazz)) 2767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compute instance field offsets and, hence, the size of the object. 2771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!computeFieldOffsets(clazz)) 2773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache fields and methods from java/lang/ref/Reference and 2777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java/lang/Class. This has to happen after computeFieldOffsets(). 2778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->classLoader == NULL) { 2780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, "Ljava/lang/ref/Reference;") == 0) { 2781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!precacheReferenceOffsets(clazz)) { 2782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("failed pre-caching Reference offsets\n"); 2783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/InternalError;", NULL); 2784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (clazz == gDvm.classJavaLangClass) { 2787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangClass_pd = dvmFindFieldOffset(clazz, "pd", 2788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/security/ProtectionDomain;"); 2789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.offJavaLangClass_pd <= 0) { 2790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: unable to find 'pd' field in Class\n"); 2791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); /* we're not going to get much farther */ 2792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //goto bail; 2793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 27986daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * Compact the offsets the GC has to examine into a bitmap, if 27996daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * possible. (This has to happen after Reference.referent is 28006daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * massaged in precacheReferenceOffsets.) 28016daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes */ 28026daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes computeRefOffsets(clazz); 28036daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes 28046daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes /* 2805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Done! 2806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz, CLASS_ISPREVERIFIED)) 2808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFIED; 2809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 2810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_RESOLVED; 2811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project okay = true; 2812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) 2813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: linked '%s'\n", clazz->descriptor); 2814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We send CLASS_PREPARE events to the debugger from here. The 2817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * definition of "preparation" is creating the static fields for a 2818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class and initializing them to the standard default values, but not 2819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * executing any code (that comes later, during "initialization"). 2820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We did the static prep in loadSFieldFromDex() while loading the class. 2822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class has been prepared and resolved but possibly not yet verified 2824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * at this point. 2825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.debuggerActive) { 2827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDbgPostClassPrepare(clazz); 2828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 2831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!okay) { 2832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 2833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmCheckException(dvmThreadSelf())) { 2834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/VirtualMachineError;", NULL); 2835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return okay; 2838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create the virtual method table. 2842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The top part of the table is a copy of the table from our superclass, 2844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with our local methods overriding theirs. The bottom part of the table 2845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has any new methods we defined. 2846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createVtable(ClassObject* clazz) 2848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool result = false; 2850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int maxCount; 2851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("SUPER METHODS %d %s->%s\n", clazz->super->vtableCount, 2855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->super->descriptor); 2856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* the virtual methods we define, plus the superclass vtable size */ 2859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount = clazz->virtualMethodCount; 2860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount += clazz->super->vtableCount; 2862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* TODO: is this invariant true for all java/lang/Objects, 2864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * regardless of the class loader? For now, assume it is. 2865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(strcmp(clazz->descriptor, "Ljava/lang/Object;") == 0); 2867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGD("+++ max vmethods for '%s' is %d\n", clazz->descriptor, maxCount); 2869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Over-allocate the table, then realloc it down if necessary. So 2872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * long as we don't allocate anything in between we won't cause 2873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fragmentation, and reducing the size should be unlikely to cause 2874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a buffer copy. 2875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 2877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = (Method**) dvmLinearAlloc(clazz->classLoader, 2878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method*) * maxCount); 2879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) 2880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int actualCount; 2884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(clazz->vtable, clazz->super->vtable, 2886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(*(clazz->vtable)) * clazz->super->vtableCount); 2887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project actualCount = clazz->super->vtableCount; 2888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See if any of our virtual methods override the superclass. 2891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++) { 2893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* localMeth = &clazz->virtualMethods[i]; 2894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int si; 2895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (si = 0; si < clazz->super->vtableCount; si++) { 2897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* superMeth = clazz->vtable[si]; 2898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos(localMeth, superMeth) == 0) 2900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* verify */ 2902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsFinalMethod(superMeth)) { 2903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method %s.%s overrides final %s.%s\n", 2904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->clazz->descriptor, localMeth->name, 2905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superMeth->clazz->descriptor, superMeth->name); 2906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[si] = localMeth; 2909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->methodIndex = (u2) si; 2910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ override %s.%s (slot %d)\n", 2911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, localMeth->name, si); 2912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (si == clazz->super->vtableCount) { 2917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* not an override, add to end */ 2918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[actualCount] = localMeth; 2919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->methodIndex = (u2) actualCount; 2920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project actualCount++; 2921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ add method %s.%s\n", 2923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, localMeth->name); 2924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (actualCount != (u2) actualCount) { 2928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in class '%s'\n", actualCount, 2929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(actualCount <= maxCount); 2934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (actualCount < maxCount) { 2936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtable != NULL); 2937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 2938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = dvmLinearRealloc(clazz->classLoader, clazz->vtable, 2939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(*(clazz->vtable)) * actualCount); 2940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) { 2941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("vtable realloc failed\n"); 2942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("+++ reduced vtable from %d to %d\n", 2945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount, actualCount); 2946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = actualCount; 2950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* java/lang/Object case */ 2952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = clazz->virtualMethodCount; 2953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (count != (u2) count) { 2954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in base class '%s'\n", count, 2955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 2960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[i] = &clazz->virtualMethods[i]; 2961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].methodIndex = (u2) i; 2962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = clazz->virtualMethodCount; 2964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 2967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 2969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 2970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 2971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 2972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create and populate "iftable". 2976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The set of interfaces we support is the combination of the interfaces 2978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we implement directly and those implemented by our superclass. Each 2979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interface can have one or more "superinterfaces", which we must also 2980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * support. For speed we flatten the tree out. 2981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We might be able to speed this up when there are lots of interfaces 2983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by merge-sorting the class pointers and binary-searching when removing 2984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * duplicates. We could also drop the duplicate removal -- it's only 2985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * there to reduce the memory footprint. 2986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because of "Miranda methods", this may reallocate clazz->virtualMethods. 2988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" on success. 2990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createIftable(ClassObject* clazz) 2992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool result = false; 2994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapIftable = false; 2995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapVtable = false; 2996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapIfvipool = false; 2997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int ifCount, superIfCount, idx; 2998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) 3001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superIfCount = clazz->super->iftableCount; 3002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 3003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superIfCount = 0; 3004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount = superIfCount; 3006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount += clazz->interfaceCount; 3007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->interfaceCount; i++) 3008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount += clazz->interfaces[i]->iftableCount; 3009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: class '%s' direct w/supra=%d super=%d total=%d\n", 3011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, ifCount - superIfCount, superIfCount, ifCount); 3012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (ifCount == 0) { 3014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->iftableCount == 0); 3015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->iftable == NULL); 3016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create a table with enough space for all interfaces, and copy the 3022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass' table in. 3023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable = (InterfaceEntry*) dvmLinearAlloc(clazz->classLoader, 3025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(InterfaceEntry) * ifCount); 3026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapIftable = true; 3027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memset(clazz->iftable, 0x00, sizeof(InterfaceEntry) * ifCount); 3028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (superIfCount != 0) { 3029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(clazz->iftable, clazz->super->iftable, 3030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(InterfaceEntry) * superIfCount); 3031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create a flattened interface hierarchy of our immediate interfaces. 3035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx = superIfCount; 3037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->interfaceCount; i++) { 3039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* interf; 3040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 3041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project interf = clazz->interfaces[i]; 3043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(interf != NULL); 3044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* make sure this is still an interface class */ 3046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(interf)) { 3047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Class '%s' implements non-interface '%s'\n", 3048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, interf->descriptor); 3049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage( 3050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/IncompatibleClassChangeError;", 3051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* add entry for this interface */ 3056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[idx++].clazz = interf; 3057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* add entries for the interface's superinterfaces */ 3059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < interf->iftableCount; j++) { 3060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[idx++].clazz = interf->iftable[j].clazz; 3061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(idx == ifCount); 3065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false) { 3067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Remove anything redundant from our recent additions. Note we have 3069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to traverse the recent adds when looking for duplicates, because 3070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it's possible the recent additions are self-redundant. This 3071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * reduces the memory footprint of classes with lots of inherited 3072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interfaces. 3073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (I don't know if this will cause problems later on when we're trying 3075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to find a static field. It looks like the proper search order is 3076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (1) current class, (2) interfaces implemented by current class, 3077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (3) repeat with superclass. A field implemented by an interface 3078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and by a superclass might come out wrong if the superclass also 3079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implements the interface. The javac compiler will reject the 3080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * situation as ambiguous, so the concern is somewhat artificial.) 3081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * UPDATE: this makes ReferenceType.Interfaces difficult to implement, 3083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because it wants to return just the interfaces declared to be 3084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implemented directly by the class. I'm excluding this code for now. 3085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 3087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 3088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < ifCount; j++) { 3090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i == j) 3091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project continue; 3092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->iftable[i].clazz == clazz->iftable[j].clazz) { 3093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: redundant interface %s in %s\n", 3094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->descriptor, 3095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != ifCount-1) 3098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memmove(&clazz->iftable[i], &clazz->iftable[i+1], 3099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (ifCount - i -1) * sizeof(InterfaceEntry)); 3100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount--; 3101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i--; // adjust for i++ above 3102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: class '%s' nodupes=%d\n", clazz->descriptor, ifCount); 3107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } // if (false) 3108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftableCount = ifCount; 3110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we're an interface, we don't need the vtable pointers, so 3113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we're done. If this class doesn't implement an interface that our 3114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass doesn't have, then we again have nothing to do. 3115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz) || superIfCount == ifCount) { 3117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmDumpClass(clazz, kDumpClassFullDetail); 3118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * When we're handling invokeinterface, we probably have an object 3124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * whose type is an interface class rather than a concrete class. We 3125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * need to convert the method reference into a vtable index. So, for 3126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * every entry in "iftable", we create a list of vtable indices. 3127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because our vtable encompasses the superclass vtable, we can use 3129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the vtable indices from our superclass for all of the interfaces 3130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that weren't directly implemented by us. 3131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Each entry in "iftable" has a pointer to the start of its set of 3133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * vtable offsets. The iftable entries in the superclass point to 3134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * storage allocated in the superclass, and the iftable entries added 3135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for this class point to storage allocated in this class. "iftable" 3136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * is flat for fast access in a class and all of its subclasses, but 3137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "ifviPool" is only created for the topmost implementor. 3138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int poolSize = 0; 3140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 3141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note it's valid for an interface to have no methods (e.g. 3143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java/io/Serializable). 3144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: pool: %d from %s\n", 3146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->virtualMethodCount, 3147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->descriptor); 3148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolSize += clazz->iftable[i].clazz->virtualMethodCount; 3149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (poolSize == 0) { 3152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: didn't find any new interfaces with methods\n"); 3153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPoolCount = poolSize; 3158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPool = (int*) dvmLinearAlloc(clazz->classLoader, 3159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolSize * sizeof(int*)); 3160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapIfvipool = true; 3161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Fill in the vtable offsets for the interfaces that weren't part of 3164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our superclass. 3165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int poolOffset = 0; 3167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method** mirandaList = NULL; 3168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int mirandaCount = 0, mirandaAlloc = 0; 3169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 3171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* interface; 3172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int methIdx; 3173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray = clazz->ifviPool + poolOffset; 3175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project interface = clazz->iftable[i].clazz; 3176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolOffset += interface->virtualMethodCount; // end here 3177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For each method listed in the interface's method list, find the 3180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * matching method in our class's method list. We want to favor the 3181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * subclass over the superclass, which just requires walking 3182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * back from the end of the vtable. (This only matters if the 3183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass defines a private method and this class redefines 3184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it -- otherwise it would use the same vtable slot. In Dalvik 3185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * those don't end up in the virtual method table, so it shouldn't 3186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * matter which direction we go. We walk it backward anyway.) 3187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Suppose we have the following arrangement: 3190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public interface MyInterface 3191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inInterface(); 3192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public abstract class MirandaAbstract implements MirandaInterface 3193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * //public abstract boolean inInterface(); // not declared! 3194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inAbstract() { stuff } // in vtable 3195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public class MirandClass extends MirandaAbstract 3196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inInterface() { stuff } 3197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inAbstract() { stuff } // in vtable 3198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The javac compiler happily compiles MirandaAbstract even though 3200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it doesn't declare all methods from its interface. When we try 3201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to set up a vtable for MirandaAbstract, we find that we don't 3202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have an slot for inInterface. To prevent this, we synthesize 3203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * abstract method declarations in MirandaAbstract. 3204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We have to expand vtable and update some things that point at it, 3206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * so we accumulate the method list and do it all at once below. 3207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (methIdx = 0; methIdx < interface->virtualMethodCount; methIdx++) { 3209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* imeth = &interface->virtualMethods[methIdx]; 3210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 3211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGVV() { 3213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = dexProtoCopyMethodDescriptor(&imeth->prototype); 3214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: matching '%s' '%s'\n", imeth->name, desc); 3215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = clazz->vtableCount-1; j >= 0; j--) { 3219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos(imeth, clazz->vtable[j]) 3220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project == 0) 3221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 3222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: matched at %d\n", j); 3223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsPublicMethod(clazz->vtable[j])) { 3224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Implementation of %s.%s is not public\n", 3225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->vtable[j]->name); 3226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IllegalAccessError;", 3227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "interface implementation not public"); 3228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray[methIdx] = j; 3231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (j < 0) { 3235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGV() { 3236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = 3237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexProtoCopyMethodDescriptor(&imeth->prototype); 3238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("No match for '%s' '%s' in '%s' (creating miranda)\n", 3239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, desc, clazz->descriptor); 3240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmThrowException("Ljava/lang/RuntimeException;", "Miranda!"); 3243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //return false; 3244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaCount == mirandaAlloc) { 3246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaAlloc += 8; 3247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaList == NULL) { 3248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList = dvmLinearAlloc(clazz->classLoader, 3249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaAlloc * sizeof(Method*)); 3250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, mirandaList); 3252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList = dvmLinearRealloc(clazz->classLoader, 3253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList, mirandaAlloc * sizeof(Method*)); 3254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(mirandaList != NULL); // mem failed + we leaked 3256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * These may be redundant (e.g. method with same name and 3260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * signature declared in two interfaces implemented by the 3261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * same abstract class). We can squeeze the duplicates 3262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * out here. 3263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int mir; 3265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (mir = 0; mir < mirandaCount; mir++) { 3266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos( 3267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mir], imeth) == 0) 3268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 3269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGVV() { 3270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = dexProtoCopyMethodDescriptor( 3271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &imeth->prototype); 3272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA dupe: %s and %s %s%s\n", 3273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mir]->clazz->descriptor, 3274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->clazz->descriptor, 3275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, desc); 3276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* point the iftable at a phantom slot index */ 3283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray[methIdx] = 3284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount + mir; 3285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA: %s points at slot %d\n", 3286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, clazz->vtableCount + mir); 3287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* if non-duplicate among Mirandas, add to Miranda list */ 3289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mir == mirandaCount) { 3290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("MIRANDA: holding '%s' in slot %d\n", 3291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // imeth->name, mir); 3292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mirandaCount++] = imeth; 3293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaCount != 0) { 329968825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden static const int kManyMirandas = 150; /* arbitrary */ 3300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* newVirtualMethods; 3301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth; 3302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int oldMethodCount, oldVtableCount; 3303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < mirandaCount; i++) { 3305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA %d: %s.%s\n", i, 3306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[i]->clazz->descriptor, mirandaList[i]->name); 3307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 330868825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden if (mirandaCount > kManyMirandas) { 330968825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden /* 331068825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * Some obfuscators like to create an interface with a huge 331168825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * pile of methods, declare classes as implementing it, and then 331268825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * only define a couple of methods. This leads to a rather 331368825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * massive collection of Miranda methods and a lot of wasted 331468825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * space, sometimes enough to blow out the LinearAlloc cap. 331568825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden */ 331668825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden LOGD("Note: class %s has %d unimplemented (abstract) methods\n", 331768825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden clazz->descriptor, mirandaCount); 331868825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden } 3319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We found methods in one or more interfaces for which we do not 3322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have vtable entries. We have to expand our virtualMethods 3323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * table (which might be empty) to hold some new entries. 3324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->virtualMethods == NULL) { 3326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newVirtualMethods = (Method*) dvmLinearAlloc(clazz->classLoader, 3327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method) * (clazz->virtualMethodCount + mirandaCount)); 3328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newVirtualMethods = (Method*) dvmLinearRealloc(clazz->classLoader, 3331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods, 3332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method) * (clazz->virtualMethodCount + mirandaCount)); 3333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newVirtualMethods != clazz->virtualMethods) { 3335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Table was moved in memory. We have to run through the 3337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * vtable and fix the pointers. The vtable entries might be 3338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pointing at superclasses, so we flip it around: run through 3339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * all locally-defined virtual methods, and fix their entries 3340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in the vtable. (This would get really messy if sub-classes 3341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * had already been loaded.) 3342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Reminder: clazz->virtualMethods and clazz->virtualMethodCount 3344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * hold the virtual methods declared by this class. The 3345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method's methodIndex is the vtable index, and is the same 3346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for all sub-classes (and all super classes in which it is 3347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * defined). We're messing with these because the Miranda 3348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stuff makes it look like the class actually has an abstract 3349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method declaration in it. 3350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA fixing vtable pointers\n"); 3352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->vtable); 3353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth = newVirtualMethods; 3354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++, meth++) 3355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[meth->methodIndex] = meth; 3356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 3357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldMethodCount = clazz->virtualMethodCount; 3360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods = newVirtualMethods; 3361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount += mirandaCount; 3362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We also have to expand the vtable. 3367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtable != NULL); 3369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = (Method**) dvmLinearRealloc(clazz->classLoader, 3370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable, 3371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method*) * (clazz->vtableCount + mirandaCount)); 3372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) { 3373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 3374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapVtable = true; 3377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldVtableCount = clazz->vtableCount; 3379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount += mirandaCount; 3380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Now we need to create the fake methods. We clone the abstract 3383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method definition from the interface and then replace a few 3384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * things. 338568825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * 338668825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * The Method will be an "abstract native", with nativeFunc set to 338768825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * dvmAbstractMethodStub(). 3388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->virtualMethods + oldMethodCount; 3390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < mirandaCount; i++, meth++) { 3391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 3392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cloneMethod(meth, mirandaList[i]); 3393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->clazz = clazz; 3394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags |= ACC_MIRANDA; 3395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->methodIndex = (u2) (oldVtableCount + i); 3396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* point the new vtable entry at the new method */ 3399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[oldVtableCount + i] = meth; 3400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, mirandaList); 3403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, mirandaList); 3404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO? 3409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Sort the interfaces by number of declared methods. All we really 3410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * want is to get the interfaces with zero methods at the end of the 3411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * list, so that when we walk through the list during invoke-interface 3412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we don't examine interfaces that can't possibly be useful. 3413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The set will usually be small, so a simple insertion sort works. 3415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We have to be careful not to change the order of two interfaces 3417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that define the same method. (Not a problem if we only move the 3418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * zero-method interfaces to the end.) 3419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * PROBLEM: 3421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we do this, we will no longer be able to identify super vs. 3422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * current class interfaces by comparing clazz->super->iftableCount. This 3423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * breaks anything that only wants to find interfaces declared directly 3424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by the class (dvmFindStaticFieldHier, ReferenceType.Interfaces, 3425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmDbgOutputAllInterfaces, etc). Need to provide a workaround. 3426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can sort just the interfaces implemented directly by this class, 3428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but that doesn't seem like it would provide much of an advantage. I'm 3429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not sure this is worthwhile. 3430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This has been made largely obsolete by the interface cache mechanism.) 3432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmDumpClass(clazz); 3435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 3439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapIftable) 3440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->iftable); 3441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapVtable) 3442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 3443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapIfvipool) 3444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifviPool); 3445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 3446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Provide "stub" implementations for methods without them. 3451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Currently we provide an implementation for all abstract methods that 3453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * throws an AbstractMethodError exception. This allows us to avoid an 3454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * explicit check for abstract methods in every virtual call. 3455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: for Miranda methods, the method declaration is a clone of what 3457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * was found in the interface class. That copy may already have had the 3458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * function pointer filled in, so don't be surprised if it's not NULL. 3459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: this sets the "native" flag, giving us an "abstract native" method, 3461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * which is nonsensical. Need to make sure that this doesn't escape the 3462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * VM. We can either mask it out in reflection calls, or copy "native" 3463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * into the high 16 bits of accessFlags and check that internally. 3464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool insertMethodStubs(ClassObject* clazz) 3466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 3468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth; 3470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 3471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->virtualMethods; 3473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++, meth++) { 3474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsAbstractMethod(meth)) { 3475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->insns == NULL); 3476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->nativeFunc == NULL || 3477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc == (DalvikBridgeFunc)dvmAbstractMethodStub); 3478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags |= ACC_NATIVE; 3480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc = (DalvikBridgeFunc) dvmAbstractMethodStub; 3481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Swap two instance fields. 3491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic inline void swapField(InstField* pOne, InstField* pTwo) 3493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField swap; 3495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- swap '%s' and '%s'\n", pOne->field.name, pTwo->field.name); 3497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swap = *pOne; 3498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pOne = *pTwo; 3499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pTwo = swap; 3500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Assign instance fields to u4 slots. 3504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The top portion of the instance field area is occupied by the superclass 3506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fields, the bottom by the fields for this class. 3507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "long" and "double" fields occupy two adjacent slots. On some 3509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * architectures, 64-bit quantities must be 64-bit aligned, so we need to 3510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * arrange fields (or introduce padding) to ensure this. We assume the 3511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fields of the topmost superclass (i.e. Object) are 64-bit aligned, so 3512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we can just ensure that the offset is "even". To avoid wasting space, 3513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we want to move non-reference 32-bit fields into gaps rather than 3514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * creating pad words. 3515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In the worst case we will waste 4 bytes, but because objects are 3517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * allocated on >= 64-bit boundaries, those bytes may well be wasted anyway 3518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (assuming this is the most-derived class). 3519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pad words are not represented in the field table, so the field table 3521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * itself does not change size. 3522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The number of field slots determines the size of the object, so we 3524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * set that here too. 3525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This function feels a little more complicated than I'd like, but it 3527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has the property of moving the smallest possible set of fields, which 3528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * should reduce the time required to load a class. 3529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: reference fields *must* come first, or precacheReferenceOffsets() 3531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * will break. 3532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool computeFieldOffsets(ClassObject* clazz) 3534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int fieldOffset; 3536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i, j; 3537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->ifields); 3539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) 3541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset = clazz->super->objectSize; 3542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 3543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset = offsetof(DataObject, instanceData); 3544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- computeFieldOffsets '%s'\n", clazz->descriptor); 3546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("OFFSETS fieldCount=%d\n", clazz->ifieldCount); 3548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("dataobj, instance: %d\n", offsetof(DataObject, instanceData)); 3549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("classobj, access: %d\n", offsetof(ClassObject, accessFlags)); 3550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("super=%p, fieldOffset=%d\n", clazz->super, fieldOffset); 3551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Start by moving all reference fields to the front. 3554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount = 0; 3556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 3558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') { 3562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This isn't a reference field; see if any reference fields 3563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * follow this one. If so, we'll move it to this position. 3564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (quicksort-style partitioning) 3565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* refField = &clazz->ifields[j--]; 3568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = refField->field.signature[0]; 3569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc == '[' || rc == 'L') { 3571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Here's a reference field that follows at least one 3572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-reference field. Swap it with the current field. 3573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (When this returns, "pField" points to the reference 3574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field, and "refField" points to the non-ref field.) 3575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, refField); 3577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Fix the signature. 3579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project c = rc; 3581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount++; 3583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We may or may not have swapped a field. 3587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This is a reference field. 3590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount++; 3592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we've hit the end of the reference fields, break. 3596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') 3598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset1 '%s'=%d\n", pField->field.name,pField->byteOffset); 3603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Now we want to pack all of the double-wide fields together. If we're 3607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not aligned, though, we want to shuffle one 32-bit field into place. 3608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we can't find one, we'll have to pad it. 3609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != clazz->ifieldCount && (fieldOffset & 0x04) != 0) { 3611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" +++ not aligned\n"); 3612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != 'J' && c != 'D') { 3617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The field that comes next is 32-bit, so just advance past it. 3619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(c != '[' && c != 'L'); 3621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i++; 3624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset2 '%s'=%d\n", 3625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name, pField->byteOffset); 3626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Next field is 64-bit, so search for a 32-bit field we can 3629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * swap into it. 3630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool found = false; 3632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* singleField = &clazz->ifields[j--]; 3635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = singleField->field.signature[0]; 3636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc != 'J' && rc != 'D') { 3638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, singleField); 3639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //c = rc; 3640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" +++ swapped '%s' for alignment\n", 3641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name); 3642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset3 '%s'=%d\n", 3645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name, pField->byteOffset); 3646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = true; 3647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i++; 3648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!found) { 3652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV(" +++ inserting pad field in '%s'\n", clazz->descriptor); 3653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Alignment is good, shuffle any double-wide fields forward, and 3660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finish assigning field offsets to all fields. 3661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(i == clazz->ifieldCount || (fieldOffset & 0x04) == 0); 3663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for ( ; i < clazz->ifieldCount; i++) { 3665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != 'D' && c != 'J') { 3669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This isn't a double-wide field; see if any double fields 3670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * follow this one. If so, we'll move it to this position. 3671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (quicksort-style partitioning) 3672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* doubleField = &clazz->ifields[j--]; 3675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = doubleField->field.signature[0]; 3676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc == 'D' || rc == 'J') { 3678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Here's a double-wide field that follows at least one 3679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-double field. Swap it with the current field. 3680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (When this returns, "pField" points to the reference 3681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field, and "doubleField" points to the non-double field.) 3682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, doubleField); 3684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project c = rc; 3685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We may or may not have swapped a field. 3690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This is a double-wide field, leave it be. 3693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset4 '%s'=%d\n", pField->field.name,pField->byteOffset); 3698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c == 'J' || c == 'D') 3700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifndef NDEBUG 3704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Make sure that all reference fields appear before 3705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-reference fields, and all double-wide fields are aligned. 3706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = 0; // seen non-ref 3708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 3709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField *pField = &clazz->ifields[i]; 3710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c == 'D' || c == 'J') { 3713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((pField->byteOffset & 0x07) == 0); 3714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') { 3717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!j) { 3718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(i == clazz->ifieldRefCount); 3719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = 1; 3720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (j) { 3722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 3723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!j) { 3726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->ifieldRefCount == clazz->ifieldCount); 3727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 3729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We map a C struct directly on top of java/lang/Class objects. Make 3732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sure we left enough room for the instance fields. 3733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != gDvm.classJavaLangClass || (size_t)fieldOffset < 3735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project offsetof(ClassObject, instanceData) + sizeof(clazz->instanceData)); 3736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->objectSize = fieldOffset; 3738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifields); 3740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Throw the VM-spec-mandated error when an exception is thrown during 3745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class initialization. 3746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The safest way to do this is to call the ExceptionInInitializerError 3748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * constructor that takes a Throwable. 3749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * [Do we want to wrap it if the original is an Error rather than 3751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an Exception?] 3752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwClinitError(void) 3754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 3756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* exception; 3757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* eiie; 3758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project exception = dvmGetException(self); 3760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc(exception, self); 3761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(self); 3762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangExceptionInInitializerError == NULL) { 3764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Always resolves to same thing -- no race condition. 3766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangExceptionInInitializerError = 3768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindSystemClass( 3769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ExceptionInInitializerError;"); 3770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangExceptionInInitializerError == NULL) { 3771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to prep java/lang/ExceptionInInitializerError\n"); 3772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.methJavaLangExceptionInInitializerError_init = 3776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindDirectMethodByDescriptor(gDvm.classJavaLangExceptionInInitializerError, 3777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "<init>", "(Ljava/lang/Throwable;)V"); 3778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.methJavaLangExceptionInInitializerError_init == NULL) { 3779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to prep java/lang/ExceptionInInitializerError\n"); 3780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project eiie = dvmAllocObject(gDvm.classJavaLangExceptionInInitializerError, 3785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ALLOC_DEFAULT); 3786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (eiie == NULL) 3787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Construct the new object, and replace the exception with it. 3791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue unused; 3793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, gDvm.methJavaLangExceptionInInitializerError_init, 3794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project eiie, &unused, exception); 3795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetException(self, eiie); 3796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(eiie, NULL); 3797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(exception, self); 3798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfail: /* restore original exception */ 3801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetException(self, exception); 3802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(exception, self); 3803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class failed to initialize on a previous attempt, so we want to throw 3808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a NoClassDefFoundError (v2 2.17.5). The exception to this rule is if we 3809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * failed in verification, in which case v2 5.4.1 says we need to re-throw 3810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the previous error. 3811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwEarlierClassFailure(ClassObject* clazz) 3813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Rejecting re-init on previously-failed class %s v=%p\n", 3815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->verifyErrorClass); 3816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->verifyErrorClass == NULL) { 3818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage("Ljava/lang/NoClassDefFoundError;", 3819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionByClassWithClassMessage(clazz->verifyErrorClass, 3822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Initialize any static fields whose values are stored in 3828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the DEX file. This must be done during class initialization. 3829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void initSFields(ClassObject* clazz) 3831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); /* for dvmReleaseTrackedAlloc() */ 3833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile; 3834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 3835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexEncodedArray* pValueList; 3836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project EncodedArrayIterator iterator; 3837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 3838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->sfieldCount == 0) { 3840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->pDvmDex == NULL) { 3843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* generated class; any static fields should already be set up */ 3844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Not initializing static fields in %s\n", clazz->descriptor); 3845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = clazz->pDvmDex->pDexFile; 3848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDexFile, clazz->descriptor); 3850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pClassDef != NULL); 3851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pValueList = dexGetStaticValuesList(pDexFile, pClassDef); 3853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pValueList == NULL) { 3854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmEncodedArrayIteratorInitialize(&iterator, pValueList, clazz); 3858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Iterate over the initial values array, setting the corresponding 3861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * static field for each array element. 3862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; dvmEncodedArrayIteratorHasNext(&iterator); i++) { 3865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project AnnotationValue value; 3866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool parsed = dvmEncodedArrayIteratorGetNext(&iterator, &value); 3867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StaticField* sfield = &clazz->sfields[i]; 3868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor = sfield->field.signature; 3869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool needRelease = false; 3870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (! parsed) { 3872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: Eventually verification should attempt to ensure 3874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that this can't happen at least due to a data integrity 3875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * problem. 3876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Static initializer parse failed for %s at index %d", 3878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, i); 3879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 3880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Verify that the value we got was of a valid type. */ 3883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (descriptor[0]) { 3885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'Z': parsed = (value.type == kDexAnnotationBoolean); break; 3886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'B': parsed = (value.type == kDexAnnotationByte); break; 3887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'C': parsed = (value.type == kDexAnnotationChar); break; 3888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'S': parsed = (value.type == kDexAnnotationShort); break; 3889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'I': parsed = (value.type == kDexAnnotationInt); break; 3890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'J': parsed = (value.type == kDexAnnotationLong); break; 3891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'F': parsed = (value.type == kDexAnnotationFloat); break; 3892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'D': parsed = (value.type == kDexAnnotationDouble); break; 3893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case '[': parsed = (value.type == kDexAnnotationNull); break; 3894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'L': { 3895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (value.type) { 3896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationNull: { 3897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* No need for further tests. */ 3898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationString: { 3901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = 3902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (strcmp(descriptor, "Ljava/lang/String;") == 0); 3903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project needRelease = true; 3904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationType: { 3907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = 3908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (strcmp(descriptor, "Ljava/lang/Class;") == 0); 3909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project needRelease = true; 3910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: { 3913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = false; 3914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: { 3920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = false; 3921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (parsed) { 3926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * All's well, so store the value. Note: This always 3928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stores the full width of a JValue, even though most of 3929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the time only the first word is needed. 3930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->value = value.value; 3932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (needRelease) { 3933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(value.value.l, self); 3934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Something up above had a problem. TODO: See comment 3938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * above the switch about verfication. 3939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Bogus static initialization: value type %d in field type " 3941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "%s for %s at index %d", 3942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project value.type, descriptor, clazz->descriptor, i); 3943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 3944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Determine whether "descriptor" yields the same class object in the 3951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * context of clazz1 and clazz2. 3952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller must hold gDvm.loadedClasses. 3954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if they match. 3956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool compareDescriptorClasses(const char* descriptor, 3958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz1, const ClassObject* clazz2) 3959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result1; 3961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result2; 3962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Do the first lookup by name. 3965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result1 = dvmFindClassNoInit(descriptor, clazz1->classLoader); 3967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can skip a second lookup by name if the second class loader is 3970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in the initiating loader list of the class object we retrieved. 3971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This means that somebody already did a lookup of this class through 3972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the second loader, and it resolved to the same class.) If it's not 3973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * there, we may simply not have had an opportunity to add it yet, so 3974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we do the full lookup. 3975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The initiating loader test should catch the majority of cases 3977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (in particular, the zillions of references to String/Object). 3978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unfortunately we're still stuck grabbing a mutex to do the lookup. 3980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For this to work, the superclass/interface should be the first 3982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * argument, so that way if it's from the bootstrap loader this test 3983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * will work. (The bootstrap loader, by definition, never shows up 3984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * as the initiating loader of a class defined by some other loader.) 3985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 3987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool isInit = dvmLoaderInInitiatingList(result1, clazz2->classLoader); 3988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 3989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (isInit) { 3991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("%s(obj=%p) / %s(cl=%p): initiating\n", 3992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // result1->descriptor, result1, 3993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz2->descriptor, clazz2->classLoader); 3994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("%s(obj=%p) / %s(cl=%p): RAW\n", 3997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // result1->descriptor, result1, 3998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz2->descriptor, clazz2->classLoader); 3999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result2 = dvmFindClassNoInit(descriptor, clazz2->classLoader); 4000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result1 == NULL || result2 == NULL) { 4003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(dvmThreadSelf()); 4004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result1 == result2) { 4005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Neither class loader could find this class. Apparently it 4007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * doesn't exist. 4008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can either throw some sort of exception now, or just 4010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * assume that it'll fail later when something actually tries 4011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to use the class. For strict handling we should throw now, 4012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because a "tricky" class loader could start returning 4013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * something later, and a pair of "tricky" loaders could set 4014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * us up for confusion. 4015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm not sure if we're allowed to complain about nonexistent 4017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * classes in method signatures during class init, so for now 4018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this will just return "true" and let nature take its course. 4019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 4021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* only one was found, so clearly they're not the same */ 4023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result1 == result2; 4028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For every component in the method descriptor, resolve the class in the 4032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * context of the two classes and compare the results. 4033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For best results, the "superclass" class should be first. 4035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if the classes match, "false" otherwise. 4037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool checkMethodDescriptorClasses(const Method* meth, 4039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz1, const ClassObject* clazz2) 4040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexParameterIterator iterator; 4042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 4043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* walk through the list of parameters */ 4045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexParameterIteratorInit(&iterator, &meth->prototype); 4046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (true) { 4047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexParameterIteratorNextDescriptor(&iterator); 4048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor == NULL) 4050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 4051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor[0] == 'L' || descriptor[0] == '[') { 4053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* non-primitive type */ 4054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!compareDescriptorClasses(descriptor, clazz1, clazz2)) 4055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* check the return type */ 4060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexProtoGetReturnType(&meth->prototype); 4061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor[0] == 'L' || descriptor[0] == '[') { 4062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!compareDescriptorClasses(descriptor, clazz1, clazz2)) 4063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 4066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Validate the descriptors in the superclass and interfaces. 4070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * What we need to do is ensure that the classes named in the method 4072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptors in our ancestors and ourselves resolve to the same class 4073cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * objects. We can get conflicts when the classes come from different 4074cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * class loaders, and the resolver comes up with different results for 4075cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * the same class name in different contexts. 4076cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * 4077cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * An easy way to cause the problem is to declare a base class that uses 4078cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * class Foo in a method signature (e.g. as the return type). Then, 4079cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * define a subclass and a different version of Foo, and load them from a 4080cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * different class loader. If the subclass overrides the method, it will 4081cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * have a different concept of what Foo is than its parent does, so even 4082cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * though the method signature strings are identical, they actually mean 4083cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * different things. 4084cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * 4085cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * A call to the method through a base-class reference would be treated 4086cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * differently than a call to the method through a subclass reference, which 4087cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * isn't the way polymorphism works, so we have to reject the subclass. 4088cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * If the subclass doesn't override the base method, then there's no 4089cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * problem, because calls through base-class references and subclass 4090cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * references end up in the same place. 4091cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * 4092cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * We don't need to check to see if an interface's methods match with its 4093cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * superinterface's methods, because you can't instantiate an interface 4094cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * and do something inappropriate with it. If interface I1 extends I2 4095cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * and is implemented by C, and I1 and I2 are in separate class loaders 4096cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * and have conflicting views of other classes, we will catch the conflict 4097cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * when we process C. Anything that implements I1 is doomed to failure, 4098cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * but we don't need to catch that while processing I1. 4099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, throws an exception and returns "false". 4101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool validateSuperDescriptors(const ClassObject* clazz) 4103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz)) 4107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 4108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Start with the superclass-declared methods. 4111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL && 4113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->classLoader != clazz->super->classLoader) 4114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 4115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4116cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * Walk through every overridden method and compare resolved 4117cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * descriptor components. We pull the Method structs out of 4118cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * the vtable. It doesn't matter whether we get the struct from 4119cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * the parent or child, since we just need the UTF-8 descriptor, 4120cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * which must match. 4121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We need to do this even for the stuff inherited from Object, 4123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because it's possible that the new class loader has redefined 4124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a basic class like String. 4125e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * 4126e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * We don't need to check stuff defined in a superclass because 4127e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * it was checked when the superclass was loaded. 4128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* meth; 4130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("Checking %s %p vs %s %p\n", 4132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->classLoader, 4133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->super->descriptor, clazz->super->classLoader); 4134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = clazz->super->vtableCount - 1; i >= 0; i--) { 4135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->vtable[i]; 4136cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden if (meth != clazz->super->vtable[i] && 4137cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden !checkMethodDescriptorClasses(meth, clazz->super, clazz)) 4138cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden { 4139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method mismatch: %s in %s (cl=%p) and super %s (cl=%p)\n", 4140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name, clazz->descriptor, clazz->classLoader, 4141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super->descriptor, clazz->super->classLoader); 4142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 4143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Classes resolve differently in superclass"); 4144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4150e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * Check the methods defined by this class against the interfaces it 4151e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * implements. If we inherited the implementation from a superclass, 4152e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * we have to check it against the superclass (which might be in a 4153e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * different class loader). If the superclass also implements the 4154e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * interface, we could skip the check since by definition it was 4155e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * performed when the class was loaded. 4156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->iftableCount; i++) { 4158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const InterfaceEntry* iftable = &clazz->iftable[i]; 4159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->classLoader != iftable->clazz->classLoader) { 4161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* iface = iftable->clazz; 4162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 4163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < iface->virtualMethodCount; j++) { 4165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* meth; 4166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int vtableIndex; 4167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project vtableIndex = iftable->methodIndexArray[j]; 4169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->vtable[vtableIndex]; 4170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4171e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden if (!checkMethodDescriptorClasses(meth, iface, meth->clazz)) { 4172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method mismatch: %s in %s (cl=%p) and " 4173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "iface %s (cl=%p)\n", 4174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name, clazz->descriptor, clazz->classLoader, 4175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project iface->descriptor, iface->classLoader); 4176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 4177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Classes resolve differently in interface"); 4178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 4185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns true if the class is being initialized by us (which means that 4189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * calling dvmInitClass will return immediately after fiddling with locks). 4190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * There isn't a race here, because either clazz->initThreadId won't match 4192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * us, or it will and it was set in the same thread. 4193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmIsClassInitializing(const ClassObject* clazz) 4195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (clazz->status == CLASS_INITIALIZING && 4197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId == dvmThreadSelf()->threadId); 4198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If a class has not been initialized, do so by executing the code in 4202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * <clinit>. The sequence is described in the VM spec v2 2.17.5. 4203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It is possible for multiple threads to arrive here simultaneously, so 4205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we need to lock the class while we check stuff. We know that no 4206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interpreted code has access to the class yet, so we can use the class's 4207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * monitor lock. 4208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We will often be called recursively, e.g. when the <clinit> code resolves 4210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * one of its fields, the field resolution will try to initialize the class. 4211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This can get very interesting if a class has a static field initialized 4213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to a new instance of itself. <clinit> will end up calling <init> on 4214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the members it is initializing, which is fine unless it uses the contents 4215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of static fields to initialize instance fields. This will leave the 4216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * static-referenced objects in a partially initialized state. This is 4217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * reasonably rare and can sometimes be cured with proper field ordering. 4218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, returns "false" with an exception raised. 4220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ----- 4222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It is possible to cause a deadlock by having a situation like this: 4224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class A { static { sleep(10000); new B(); } } 4225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class B { static { sleep(10000); new A(); } } 4226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * new Thread() { public void run() { new A(); } }.start(); 4227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * new Thread() { public void run() { new B(); } }.start(); 4228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This appears to be expected under the spec. 4229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The interesting question is what to do if somebody calls Thread.interrupt() 4231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on one of the deadlocked threads. According to the VM spec, they're both 4232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sitting in "wait". Should the interrupt code quietly raise the 4233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "interrupted" flag, or should the "wait" return immediately with an 4234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exception raised? 4235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This gets a little murky. The VM spec says we call "wait", and the 4237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * spec for Thread.interrupt says Object.wait is interruptible. So it 4238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * seems that, if we get unlucky and interrupt class initialization, we 4239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * are expected to throw (which gets converted to ExceptionInInitializerError 4240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * since InterruptedException is checked). 4241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * There are a couple of problems here. First, all threads are expected to 4243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * present a consistent view of class initialization, so we can't have it 4244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fail in one thread and succeed in another. Second, once a class fails 4245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to initialize, it must *always* fail. This means that a stray interrupt() 4246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * call could render a class unusable for the lifetime of the VM. 4247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In most cases -- the deadlock example above being a counter-example -- 4249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the interrupting thread can't tell whether the target thread handled 4250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the initialization itself or had to wait while another thread did the 4251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * work. Refusing to interrupt class initialization is, in most cases, 4252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not something that a program can reliably detect. 4253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On the assumption that interrupting class initialization is highly 4255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * undesirable in most circumstances, and that failing to do so does not 4256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * deviate from the spec in a meaningful way, we don't allow class init 4257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to be interrupted by Thread.interrupt(). 4258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmInitClass(ClassObject* clazz) 4260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool initializedByUs = false; 4263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 4266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method; 4267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmIsClassLinked(clazz) || clazz->status == CLASS_ERROR); 4270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class hasn't been verified yet, do so now. 4273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status < CLASS_VERIFIED) { 4275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we're in an "erroneous" state, throw an exception and bail. 4277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 4280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_RESOLVED); 4284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(!IS_CLASS_FLAG_SET(clazz, CLASS_ISPREVERIFIED)); 4285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classVerifyMode == VERIFY_MODE_NONE || 4287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (gDvm.classVerifyMode == VERIFY_MODE_REMOTE && 4288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->classLoader == NULL)) 4289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 4290d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden /* advance to "verified" state */ 4291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ not verifying class %s (cl=%p)\n", 4292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader); 4293d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden clazz->status = CLASS_VERIFIED; 4294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto noverify; 4295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!gDvm.optimizing) 4298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ late verify on %s\n", clazz->descriptor); 4299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're not supposed to optimize an unverified class, but during 4302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * development this mode was useful. We can't verify an optimized 4303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class because the optimization process discards information. 4304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz, CLASS_ISOPTIMIZED)) { 4306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Class '%s' was optimized without verification; " 4307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "not verifying now\n", 4308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW(" ('rm /data/dalvik-cache/*' and restart to fix this)"); 4310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto verify_failed; 4311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFYING; 4314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmVerifyClass(clazz, VERIFY_DEFAULT)) { 4315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectverify_failed: 4316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage("Ljava/lang/VerifyError;", 4317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->verifyErrorClass = dvmGetException(self)->clazz; 4319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFIED; 4324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectnoverify: 4326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4327d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden#ifdef WITH_DEBUGGER 4328d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden /* update instruction stream now that the verifier is done */ 4329d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden dvmFlushBreakpoints(clazz); 4330d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden#endif 4331d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden 4332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_INITIALIZED) 4333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (clazz->status == CLASS_INITIALIZING) { 4336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* we caught somebody else in the act; was it us? */ 4337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->initThreadId == self->threadId) { 4338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("HEY: found a recursive <clinit>\n"); 4339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("GLITCH: exception pending at start of class init\n"); 4344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 4345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Wait for the other thread to finish initialization. We pass 4349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "false" for the "interruptShouldThrow" arg so it doesn't throw 4350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception on interrupt. 4351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectWait(self, (Object*) clazz, 0, 0, false); 4353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * When we wake up, repeat the test for init-in-progress. If there's 4356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception pending (only possible if "interruptShouldThrow" 4357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * was set), bail out. 4358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Class init of '%s' failing with wait() exception\n", 4361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: this is bogus, because it means the two threads have a 4364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * different idea of the class status. We need to flag the 4365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class as bad and ensure that the initializer thread respects 4366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our notice. If we get lucky and wake up after the class has 4367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finished initialization but before being woken, we have to 4368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * swallow the exception, perhaps raising thread->interrupted 4369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to preserve semantics. 4370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Since we're not currently allowing interrupts, this should 4372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * never happen and we don't need to fix this. 4373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 4375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwClinitError(); 4376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_INITIALIZING) { 4380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Waiting again for class init\n"); 4381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project continue; 4382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_INITIALIZED || 4384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status == CLASS_ERROR); 4385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller wants an exception, but it was thrown in a 4388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * different thread. Synthesize one here. 4389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/UnsatisfiedLinkError;", 4391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "(<clinit> failed, see exception in other thread)"); 4392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* see if we failed previously */ 4397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // might be wise to unlock before throwing; depends on which class 4399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // it is that we have locked 4400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 4402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4405e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden u8 startWhen = 0; 4406e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden if (gDvm.allocProf.enabled) { 4407e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden startWhen = dvmGetRelativeTimeNsec(); 4408e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden } 4409e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden 4410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're ready to go, and have exclusive access to the class. 4412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Before we start initialization, we need to do one extra bit of 4414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * validation: make sure that the methods declared here match up 4415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with our superclass and interfaces. We know that the UTF-8 4416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptors match, but classes from different class loaders can 4417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have the same name. 4418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We do this now, rather than at load/link time, for the same reason 4420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that we defer verification. 4421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It's unfortunate that we need to do this at all, but we risk 4423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * mixing reference types with identical names (see Dalvik test 068). 4424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!validateSuperDescriptors(clazz)) { 4426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 4427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Let's initialize this thing. 4433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We unlock the object so that other threads can politely sleep on 4435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our mutex with Object.wait(), instead of hanging or spinning trying 4436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to grab our mutex. 4437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status < CLASS_INITIALIZING); 4439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // We started initializing. 4442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('+', clazz); 4443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initializedByUs = true; 4444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_INITIALIZING; 4447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = self->threadId; 4448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init our superclass */ 4451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL && clazz->super->status != CLASS_INITIALIZED) { 4452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(!dvmIsInterfaceClass(clazz)); 4453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz->super)) { 4454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 4455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* wake up anybody who started waiting while we were unlocked */ 4457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_notify; 4459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Initialize any static fields whose values are 4463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stored in the Dex file. This should include all of the 4464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * simple "final static" fields, which are required to 4465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be initialized first. (vmspec 2 sec 2.17.5 item 8) 4466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * More-complicated final static fields should be set 4467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * at the beginning of <clinit>; all we can do is trust 4468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that the compiler did the right thing. 4469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initSFields(clazz); 4471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Execute any static initialization code. 4473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method = dvmFindDirectMethodByDescriptor(clazz, "<clinit>", "()V"); 4475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (method == NULL) { 4476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("No <clinit> found for %s\n", clazz->descriptor); 4477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Invoking %s.<clinit>\n", clazz->descriptor); 4479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue unused; 4480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, method, NULL, &unused); 4481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We've had an exception thrown during static initialization. We 4486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * need to throw an ExceptionInInitializerError, but we want to 4487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * tuck the original exception into the "cause" field. 4488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Exception %s thrown during %s.<clinit>\n", 4490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (dvmGetException(self)->clazz)->descriptor, clazz->descriptor); 4491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwClinitError(); 4492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGW("+++ replaced\n"); 4493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* success! */ 4498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_INITIALIZED; 4500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Initialized class: %s\n", clazz->descriptor); 4501e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden 4502e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden /* 4503e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden * Update alloc counters. TODO: guard with mutex. 4504e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden */ 4505e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden if (gDvm.allocProf.enabled && startWhen != 0) { 4506e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden u8 initDuration = dvmGetRelativeTimeNsec() - startWhen; 4507e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden gDvm.allocProf.classInitTime += initDuration; 4508e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden self->allocProf.classInitTime += initDuration; 4509e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden gDvm.allocProf.classInitCount++; 4510e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden self->allocProf.classInitCount++; 4511e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden } 4512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_notify: 4515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Notify anybody waiting on the object. 4517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 4519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_unlock: 4521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (initializedByUs) { 4524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // We finished initializing. 4525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('-', clazz); 4526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (clazz->status != CLASS_ERROR); 4532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Replace method->nativeFunc and method->insns with new values. This is 4536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * performed on resolution of a native method. 4537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetNativeFunc(const Method* method, DalvikBridgeFunc func, 4539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u2* insns) 4540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = method->clazz; 4542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* just open up both; easier that way */ 4544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 4545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->directMethods); 4546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ((Method*)method)->nativeFunc = func; 4548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ((Method*)method)->insns = insns; 4549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 4551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->directMethods); 4552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add a RegisterMap to a Method. This is done when we verify the class 455699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * and compute the register maps at class initialization time (i.e. when 455799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * we don't have a pre-generated map). This means "pMap" is on the heap 455899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * and should be freed when the Method is discarded. 4559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetRegisterMap(Method* method, const RegisterMap* pMap) 4561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = method->clazz; 4563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (method->registerMap != NULL) { 4565d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden /* unexpected during class loading, okay on first use (uncompress) */ 45669faa9e6a7df9a5b9ef7c8e9d5c07d2a050c319d3Andy McFadden LOGV("NOTE: registerMap already set for %s.%s\n", 4567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method->clazz->descriptor, method->name); 4568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* keep going */ 4569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 457099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert(!dvmIsNativeMethod(method) && !dvmIsAbstractMethod(method)); 4571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* might be virtual or direct */ 4573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 4574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->directMethods); 4575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method->registerMap = pMap; 4577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 4579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->directMethods); 4580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmHashForeach callback. A nonzero return value causes foreach to 4584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bail out. 4585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int findClassCallback(void* vclazz, void* arg) 4587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = vclazz; 4589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor = (const char*) arg; 4590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, descriptor) == 0) 4592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (int) clazz; 4593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find a loaded class by descriptor. Returns the first one found. 4598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because there can be more than one if class loaders are involved, 4599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this is not an especially good API. (Currently only used by the 4600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * debugger and "checking" JNI.) 4601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "descriptor" should have the form "Ljava/lang/Class;" or 4603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "[Ljava/lang/Class;", i.e. a descriptor and not an internal-form 4604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class name. 4605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindLoadedClass(const char* descriptor) 4607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result; 4609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = dvmHashForeach(gDvm.loadedClasses, findClassCallback, 4612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (void*) descriptor); 4613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (ClassObject*) result; 4616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Retrieve the system (a/k/a application) class loader. 4620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectObject* dvmGetSystemClassLoader(void) 4622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 4624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* getSysMeth; 4625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader; 4626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindSystemClass("Ljava/lang/ClassLoader;"); 4628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) 4629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 4630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project getSysMeth = dvmFindDirectMethodByDescriptor(clazz, "getSystemClassLoader", 4632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "()Ljava/lang/ClassLoader;"); 4633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (getSysMeth == NULL) 4634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 4635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue result; 4637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(dvmThreadSelf(), getSysMeth, NULL, &result); 4638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loader = (Object*)result.l; 4639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return loader; 4640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This is a dvmHashForeach callback. 4645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int dumpClass(void* vclazz, void* varg) 4647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 4649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* super; 4650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int flags = (int) varg; 4651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc; 4652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) { 4655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("dumpClass: ignoring request to dump null class\n"); 4656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((flags & kDumpClassFullDetail) == 0) { 4660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool showInit = (flags & kDumpClassInitialized) != 0; 4661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool showLoader = (flags & kDumpClassClassLoader) != 0; 4662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* initStr; 4663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initStr = dvmIsClassInitialized(clazz) ? "true" : "false"; 4665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (showInit && showLoader) 4667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %p %s\n", clazz->descriptor, clazz->classLoader, initStr); 4668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else if (showInit) 4669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %s\n", clazz->descriptor, initStr); 4670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else if (showLoader) 4671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %p\n", clazz->descriptor, clazz->classLoader); 4672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 4673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s\n", clazz->descriptor); 4674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* clazz->super briefly holds the superclass index during class prep */ 4679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((u4)clazz->super > 0x10000 && (u4) clazz->super != (u4)-1) 4680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super = clazz->super; 4681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 4682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super = NULL; 4683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("----- %s '%s' cl=%p ser=0x%08x -----\n", 4685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmIsInterfaceClass(clazz) ? "interface" : "class", 4686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader, clazz->serialNumber); 4687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" objectSize=%d (%d from super)\n", (int) clazz->objectSize, 4688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super != NULL ? (int) super->objectSize : -1); 4689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" access=0x%04x.%04x\n", clazz->accessFlags >> 16, 4690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->accessFlags & JAVA_FLAGS_MASK); 4691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (super != NULL) 4692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" super='%s' (cl=%p)\n", super->descriptor, super->classLoader); 4693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsArrayClass(clazz)) { 4694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" dimensions=%d elementClass=%s\n", 4695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->arrayDim, clazz->elementClass->descriptor); 4696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->iftableCount > 0) { 4698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" interfaces (%d):\n", clazz->iftableCount); 4699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->iftableCount; i++) { 4700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InterfaceEntry* ent = &clazz->iftable[i]; 4701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 4702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %s (cl=%p)\n", 4704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i, ent->clazz->descriptor, ent->clazz->classLoader); 4705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* enable when needed */ 4707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false && ent->methodIndexArray != NULL) { 4708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < ent->clazz->virtualMethodCount; j++) 4709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %d %s %s\n", 4710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j, ent->methodIndexArray[j], 4711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ent->clazz->virtualMethods[j].name, 4712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[ent->methodIndexArray[j]]->name); 4713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(clazz)) { 4717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" vtable (%d entries, %d in super):\n", clazz->vtableCount, 4718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super != NULL ? super->vtableCount : 0); 4719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->vtableCount; i++) { 4720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor(&clazz->vtable[i]->prototype); 4721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %s%2d: %p %20s %s\n", 4722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (i != clazz->vtable[i]->methodIndex) ? "*** " : "", 4723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (u4) clazz->vtable[i]->methodIndex, clazz->vtable[i], 4724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[i]->name, desc); 4725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" direct methods (%d entries):\n", clazz->directMethodCount); 4728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->directMethodCount; i++) { 4729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor( 4730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &clazz->directMethods[i].prototype); 4731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->directMethods[i].name, 4732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc); 4733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" interface methods (%d):\n", clazz->virtualMethodCount); 4737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++) { 4738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor( 4739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &clazz->virtualMethods[i].prototype); 4740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %2d %20s %s\n", i, 4741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (u4) clazz->virtualMethods[i].methodIndex, 4742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].name, 4743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc); 4744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->sfieldCount > 0) { 4748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" static fields (%d entries):\n", clazz->sfieldCount); 4749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->sfieldCount; i++) { 4750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->sfields[i].field.name, 4751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->sfields[i].field.signature); 4752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->ifieldCount > 0) { 4755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" instance fields (%d entries):\n", clazz->ifieldCount); 4756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 4757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->ifields[i].field.name, 4758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifields[i].field.signature); 4759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of a single class. 4766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pass kDumpClassFullDetail into "flags" to get lots of detail. 4768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpClass(const ClassObject* clazz, int flags) 4770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dumpClass((void*) clazz, (void*) flags); 4772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of all classes. 4776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpAllClasses(int flags) 4778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, dumpClass, (void*) flags); 4781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Get the number of loaded classes 4786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmGetNumLoadedClasses() 4788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count; 4790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count = dvmHashTableNumEntries(gDvm.loadedClasses); 4792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return count; 4794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Write some statistics to the log file. 4798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpLoaderStats(const char* msg) 4800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("VM stats (%s): cls=%d/%d meth=%d ifld=%d sfld=%d linear=%d\n", 4802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project msg, gDvm.numLoadedClasses, dvmHashTableNumEntries(gDvm.loadedClasses), 4803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredMethods, gDvm.numDeclaredInstFields, 4804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredStaticFields, gDvm.pBootLoaderAlloc->curOffset); 4805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef COUNT_PRECISE_METHODS 4806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("GC precise methods: %d\n", 4807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmPointerSetGetCount(gDvm.preciseMethods)); 4808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef PROFILE_FIELD_ACCESS 4812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the field access counts for all fields in this method. 4814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int dumpAccessCounts(void* vclazz, void* varg) 4816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 4818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 4821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Field* field = &clazz->ifields[i].field; 4822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->gets != 0) 4824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("GI %d %s.%s\n", field->gets, 4825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->puts != 0) 4827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("PI %d %s.%s\n", field->puts, 4828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->sfieldCount; i++) { 4831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Field* field = &clazz->sfields[i].field; 4832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->gets != 0) 4834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("GS %d %s.%s\n", field->gets, 4835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->puts != 0) 4837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("PS %d %s.%s\n", field->puts, 4838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the field access counts for all loaded classes. 4846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpFieldAccessCounts(void) 4848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, dumpAccessCounts, NULL); 4851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Mark all classes associated with the built-in loader. 4858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int markClassObject(void *clazz, void *arg) 4860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project UNUSED_PARAMETER(arg); 4862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMarkObjectNonNull((Object *)clazz); 4864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The garbage collector calls this to mark the class objects for all 4869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loaded classes. 4870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmGcScanRootClassLoader() 4872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* dvmClassStartup() may not have been called before the first GC. 4874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 48754dc2ab9f91ac94ab4d725b119141769a2e23975bBarry Hayes if (gDvm.unlinkedJavaLangClass != NULL) { 48764dc2ab9f91ac94ab4d725b119141769a2e23975bBarry Hayes dvmMarkObjectNonNull((Object *)gDvm.unlinkedJavaLangClass); 48774dc2ab9f91ac94ab4d725b119141769a2e23975bBarry Hayes } 4878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.loadedClasses != NULL) { 4879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, markClassObject, NULL); 4881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 4888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Method Prototypes and Descriptors 4889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 4890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare the two method names and prototypes, a la strcmp(). The 4894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * name is considered the "major" order and the prototype the "minor" 4895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * order. The prototypes are compared as if by dvmCompareMethodProtos(). 4896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareMethodNamesAndProtos(const Method* method1, 4898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method2) 4899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(method1->name, method2->name); 4901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareMethodProtos(method1, method2); 4907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare the two method names and prototypes, a la strcmp(), ignoring 4911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the return value. The name is considered the "major" order and the 4912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * prototype the "minor" order. The prototypes are compared as if by 4913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmCompareMethodArgProtos(). 4914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareMethodNamesAndParameterProtos(const Method* method1, 4916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method2) 4917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(method1->name, method2->name); 4919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareMethodParameterProtos(method1, method2); 4925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare a (name, prototype) pair with the (name, prototype) of 4929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a method, a la strcmp(). The name is considered the "major" order and 4930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the prototype the "minor" order. The descriptor and prototype are 4931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compared as if by dvmCompareDescriptorAndMethodProto(). 4932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareNameProtoAndMethod(const char* name, 4934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexProto* proto, const Method* method) 4935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(name, method->name); 4937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dexProtoCompare(proto, &method->prototype); 4943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare a (name, method descriptor) pair with the (name, prototype) of 4947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a method, a la strcmp(). The name is considered the "major" order and 4948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the prototype the "minor" order. The descriptor and prototype are 4949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compared as if by dvmCompareDescriptorAndMethodProto(). 4950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareNameDescriptorAndMethod(const char* name, 4952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor, const Method* method) 4953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(name, method->name); 4955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareDescriptorAndMethodProto(descriptor, method); 4961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4962bfe4dcc3bd3d4d85a07fd3d63da537b51342b6ebCarl Shapiro 4963bfe4dcc3bd3d4d85a07fd3d63da537b51342b6ebCarl Shapirosize_t dvmClassObjectSize(const ClassObject *clazz) 4964bfe4dcc3bd3d4d85a07fd3d63da537b51342b6ebCarl Shapiro{ 4965bfe4dcc3bd3d4d85a07fd3d63da537b51342b6ebCarl Shapiro size_t size; 4966bfe4dcc3bd3d4d85a07fd3d63da537b51342b6ebCarl Shapiro 4967bfe4dcc3bd3d4d85a07fd3d63da537b51342b6ebCarl Shapiro assert(clazz != NULL); 4968bfe4dcc3bd3d4d85a07fd3d63da537b51342b6ebCarl Shapiro size = offsetof(ClassObject, sfields); 4969bfe4dcc3bd3d4d85a07fd3d63da537b51342b6ebCarl Shapiro size += sizeof(StaticField) * clazz->sfieldCount; 4970bfe4dcc3bd3d4d85a07fd3d63da537b51342b6ebCarl Shapiro return size; 4971bfe4dcc3bd3d4d85a07fd3d63da537b51342b6ebCarl Shapiro} 4972