Class.cpp revision 1145f22c92b0fb2c3bfc4de2d0d38bd54046127c
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 167c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes#define CLASS_SFIELD_SLOTS 1 168c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassPathEntry* processClassPath(const char* pathStr, bool isBootstrap); 170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeCpeArray(ClassPathEntry* cpe); 171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassFromLoaderNoInit( 173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor, Object* loader); 174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassNoInit(const char* descriptor, Object* loader,\ 175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex); 176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex(DvmDex* pDvmDex, 177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, Object* loader); 178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadMethodFromDex(ClassObject* clazz, const DexMethod* pDexMethod,\ 179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth); 180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int computeJniArgInfo(const DexProto* proto); 181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadSFieldFromDex(ClassObject* clazz, 182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexSField, StaticField* sfield); 183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadIFieldFromDex(ClassObject* clazz, 184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexIField, InstField* field); 1856daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayesstatic bool precacheReferenceOffsets(ClassObject* clazz); 1866daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayesstatic void computeRefOffsets(ClassObject* clazz); 187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeMethodInnards(Method* meth); 188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createVtable(ClassObject* clazz); 189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createIftable(ClassObject* clazz); 190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool insertMethodStubs(ClassObject* clazz); 191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool computeFieldOffsets(ClassObject* clazz); 192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwEarlierClassFailure(ClassObject* clazz); 193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Logs information about a class loading with given timestamp. 197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: In the case where we fail in dvmLinkClass() and log the class as closing (type='<'), 199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it would probably be better to use a new type code to indicate the failure. This change would 200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * require a matching change in the parser and analysis code in frameworks/base/tools/preload. 201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void logClassLoadWithTime(char type, ClassObject* clazz, u8 time) { 203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pid_t ppid = getppid(); 204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pid_t pid = getpid(); 205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project unsigned int tid = (unsigned int) pthread_self(); 206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOG(LOG_INFO, "PRELOAD", "%c%d:%d:%d:%s:%d:%s:%lld\n", type, ppid, pid, tid, 208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project get_process_name(), (int) clazz->classLoader, clazz->descriptor, 209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project time); 210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Logs information about a class loading. 214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void logClassLoad(char type, ClassObject* clazz) { 216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoadWithTime(type, clazz, dvmGetThreadCpuTimeNsec()); 217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Some LinearAlloc unit tests. 222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void linearAllocTests() 224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* fiddle; 226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int try = 1; 227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (try) { 229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 0: 230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-28); 231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 1: 234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-24); 235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 2: 238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-20); 239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 3: 242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-16); 243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 4: 246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-12); 247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 896); 251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 20); // watch addr of this alloc 253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 1); 256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'q'; 257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 4096); 259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'x'; 260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[4095] = 'y'; 261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(NULL, fiddle); 263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 0); 264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearRealloc(NULL, fiddle, 12); 266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[11] = 'z'; 267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearRealloc(NULL, fiddle, 5); 269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 17001); 271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'x'; 272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[17000] = 'y'; 273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* str = dvmLinearStrdup(NULL, "This is a test!"); 276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("GOT: '%s'\n", str); 277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2787605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden /* try to check the bounds; allocator may round allocation size up */ 2797605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden fiddle = dvmLinearAlloc(NULL, 12); 2807605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden LOGI("Should be 1: %d\n", dvmLinearAllocContains(fiddle, 12)); 2817605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden LOGI("Should be 0: %d\n", dvmLinearAllocContains(fiddle, 13)); 2827605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden LOGI("Should be 0: %d\n", dvmLinearAllocContains(fiddle - 128*1024, 1)); 2837605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden 284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearAllocDump(NULL); 285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(NULL, str); 286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 288c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayesstatic size_t classObjectSize(size_t sfieldCount) 289c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes{ 290c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes size_t size; 291c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 292c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes size = offsetof(ClassObject, sfields); 293c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes size += sizeof(StaticField) * sfieldCount; 294c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes return size; 295c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes} 296c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 297c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayessize_t dvmClassObjectSize(const ClassObject *clazz) 298c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes{ 299c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz != NULL); 300c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes return classObjectSize(clazz->sfieldCount); 301c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes} 302c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Initialize the bootstrap class loader. 305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Call this after the bootclasspath string has been finalized. 307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmClassStartup(void) 309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* make this a requirement -- don't currently support dirs in path */ 311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(gDvm.bootClassPathStr, ".") == 0) { 312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: must specify non-'.' bootclasspath\n"); 313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.loadedClasses = 317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableCreate(256, (HashFreeFunc) dvmFreeClassInnards); 318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.pBootLoaderAlloc = dvmLinearAllocCreate(NULL); 320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.pBootLoaderAlloc == NULL) 321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false) { 324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project linearAllocTests(); 325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project exit(0); 326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class serial number. We start with a high value to make it distinct 330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in binary dumps (e.g. hprof). 331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3322c98747b403970ef4b3352e271633f93935b9825Barry Hayes gDvm.classSerialNumber = INITIAL_CLASS_SERIAL_NUMBER; 333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3342c98747b403970ef4b3352e271633f93935b9825Barry Hayes /* Set up the table we'll use for tracking initiating loaders for 3352c98747b403970ef4b3352e271633f93935b9825Barry Hayes * early classes. 3362c98747b403970ef4b3352e271633f93935b9825Barry Hayes * If it's NULL, we just fall back to the InitiatingLoaderList in the 3372c98747b403970ef4b3352e271633f93935b9825Barry Hayes * ClassObject, so it's not fatal to fail this allocation. 3382c98747b403970ef4b3352e271633f93935b9825Barry Hayes */ 3392c98747b403970ef4b3352e271633f93935b9825Barry Hayes gDvm.initiatingLoaderList = 3402c98747b403970ef4b3352e271633f93935b9825Barry Hayes calloc(ZYGOTE_CLASS_CUTOFF, sizeof(InitiatingLoaderList)); 341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 342c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes gDvm.classJavaLangClass = (ClassObject*) dvmMalloc( 343c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes classObjectSize(CLASS_SFIELD_SLOTS), ALLOC_DEFAULT); 344c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes DVM_OBJECT_INIT(&gDvm.classJavaLangClass->obj, gDvm.classJavaLangClass); 345c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes gDvm.classJavaLangClass->descriptor = "Ljava/lang/Class;"; 346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Process the bootstrap class path. This means opening the specified 348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * DEX or Jar files and possibly running them through the optimizer. 349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.bootClassPath == NULL); 351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project processClassPath(gDvm.bootClassPathStr, true); 352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.bootClassPath == NULL) 354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Clean up. 361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmClassShutdown(void) 363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* discard all system-loaded classes */ 367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableFree(gDvm.loadedClasses); 368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.loadedClasses = NULL; 369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* discard primitive classes created for arrays */ 371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < PRIM_MAX; i++) 372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFreeClassInnards(gDvm.primitiveClass[i]); 373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* this closes DEX files, JAR files, etc. */ 375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeCpeArray(gDvm.bootClassPath); 376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = NULL; 377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearAllocDestroy(NULL); 3792c98747b403970ef4b3352e271633f93935b9825Barry Hayes 3802c98747b403970ef4b3352e271633f93935b9825Barry Hayes free(gDvm.initiatingLoaderList); 381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Bootstrap class loader 387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of a ClassPathEntry array. 392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void dumpClassPath(const ClassPathEntry* cpe) 394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int idx = 0; 396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* kindStr; 399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: kindStr = "dir"; break; 402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: kindStr = "jar"; break; 403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: kindStr = "dex"; break; 404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: kindStr = "???"; break; 405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: type=%s %s %p\n", idx, kindStr, cpe->fileName, cpe->ptr); 408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (CALC_CACHE_STATS && cpe->kind == kCpeJar) { 409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex = dvmGetJarFileDex(pJarFile); 411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDumpAtomicCacheStats(pDvmDex->pInterfaceCache); 412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx++; 416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of the bootstrap class path. 421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpBootClassPath(void) 423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dumpClassPath(gDvm.bootClassPath); 425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if the class path contains the specified path. 429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmClassPathContains(const ClassPathEntry* cpe, const char* path) 431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(cpe->fileName, path) == 0) 434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free an array of ClassPathEntry structs. 443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We release the contents of each entry, then free the array itself. 445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeCpeArray(ClassPathEntry* cpe) 447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry* cpeStart = cpe; 449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cpe == NULL) 451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* free JarFile */ 457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmJarFileFree((JarFile*) cpe->ptr); 458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* free RawDexFile */ 461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmRawDexFileFree((RawDexFile*) cpe->ptr); 462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* e.g. kCpeDir */ 465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(cpe->ptr == NULL); 466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpe->fileName); 470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpeStart); 474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Prepare a ClassPathEntry struct, which at this point only has a valid 478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * filename. We need to figure out what kind of file it is, and for 479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * everything other than directories we need to open it up and see 480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * what's inside. 481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool prepareCpe(ClassPathEntry* cpe, bool isBootstrap) 483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = NULL; 485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RawDexFile* pRawDexFile = NULL; 486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project struct stat sb; 487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int cc; 488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cc = stat(cpe->fileName, &sb); 490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cc < 0) { 4911b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden LOGD("Unable to stat classpath element '%s'\n", cpe->fileName); 492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (S_ISDIR(sb.st_mode)) { 495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The directory will usually have .class files in subdirectories, 497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * which may be a few levels down. Doing a recursive scan and 498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * caching the results would help us avoid hitting the filesystem 499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on misses. Whether or not this is of measureable benefit 500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * depends on a number of factors, but most likely it is not 501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * worth the effort (especially since most of our stuff will be 502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in DEX or JAR). 503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeDir; 505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(cpe->ptr == NULL); 506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmJarFileOpen(cpe->fileName, NULL, &pJarFile, isBootstrap) == 0) { 510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeJar; 511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->ptr = pJarFile; 512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // TODO: do we still want to support "raw" DEX files in the classpath? 516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmRawDexFileOpen(cpe->fileName, NULL, &pRawDexFile, isBootstrap) == 0) 517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeDex; 519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->ptr = pRawDexFile; 520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 5231b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden LOGD("Unable to process classpath element '%s'\n", cpe->fileName); 524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Convert a colon-separated list of directories, Zip files, and DEX files 529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * into an array of ClassPathEntry structs. 530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * During normal startup we fail if there are no entries, because we won't 532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * get very far without the basic language support classes, but if we're 533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * optimizing a DEX file we allow it. 5341b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * 5351b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * If entries are added or removed from the bootstrap class path, the 5361b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * dependencies in the DEX files will break, and everything except the 5371b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * very first entry will need to be regenerated. 538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassPathEntry* processClassPath(const char* pathStr, bool isBootstrap) 540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry* cpe = NULL; 542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* mangle; 543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* cp; 544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* end; 545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int idx, count; 546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pathStr != NULL); 548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mangle = strdup(pathStr); 550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Run through and essentially strtok() the string. Get a count of 553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the #of elements while we're at it. 554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the path was constructed strangely (e.g. ":foo::bar:") this will 556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * over-allocate, which isn't ideal but is mostly harmless. 557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count = 1; 559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (cp = mangle; *cp != '\0'; cp++) { 560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*cp == ':') { /* separates two entries */ 561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count++; 562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *cp = '\0'; 563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project end = cp; 566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Allocate storage. We over-alloc by one so we can set an "end" marker. 569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe = (ClassPathEntry*) calloc(count+1, sizeof(ClassPathEntry)); 571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set the global pointer so the DEX file dependency stuff can find it. 574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = cpe; 576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Go through a second time, pulling stuff out. 579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cp = mangle; 581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx = 0; 582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cp < end) { 583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*cp == '\0') { 584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* leading, trailing, or doubled ':'; ignore it */ 585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry tmp; 587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.kind = kCpeUnknown; 588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.fileName = strdup(cp); 589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.ptr = NULL; 590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* drop an end marker here so DEX loader can walk unfinished list */ 592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].kind = kCpeLastEntry; 593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].fileName = NULL; 594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].ptr = NULL; 595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!prepareCpe(&tmp, isBootstrap)) { 597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* drop from list and continue on */ 598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(tmp.fileName); 599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* copy over, pointers and all */ 601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (tmp.fileName[0] != '/') 602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Non-absolute bootclasspath entry '%s'\n", 603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.fileName); 604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx] = tmp; 605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx++; 606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cp += strlen(cp) +1; 610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(idx <= count); 612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (idx == 0 && !gDvm.optimizing) { 613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: no valid entries found in bootclasspath '%s'\n", pathStr); 614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpe); 615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe = NULL; 616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" (filled %d of %d slots)\n", idx, count); 620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* put end marker in over-alloc slot */ 622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].kind = kCpeLastEntry; 623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].fileName = NULL; 624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].ptr = NULL; 625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dumpClassPath(cpe); 627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(mangle); 630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = cpe; 631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return cpe; 632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Search the DEX files we loaded from the bootstrap class path for a DEX 636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * file that has the class with the matching descriptor. 637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns the matching DEX file and DexClassDef entry if found, otherwise 639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * returns NULL. 640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic DvmDex* searchBootPathForClass(const char* descriptor, 642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef** ppClassDef) 643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pFoundDef = NULL; 646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pFoundFile = NULL; 647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("+++ class '%s' not yet loaded, scanning bootclasspath...\n", 649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor); 650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ checking '%s' (%d)\n", cpe->fileName, cpe->kind); 653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: 656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Directory entries ('%s') not supported in bootclasspath\n", 657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->fileName); 658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex; 664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = dvmGetJarFileDex(pJarFile); 666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = pDvmDex; 671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto found; 672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RawDexFile* pRawDexFile = (RawDexFile*) cpe->ptr; 678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex; 680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = dvmGetRawDexFileDex(pRawDexFile); 682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = pDvmDex; 687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto found; 688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unknown kind %d\n", cpe->kind); 693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Special handling during verification + optimization. 702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The DEX optimizer needs to load classes from the DEX file it's working 704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on. Rather than trying to insert it into the bootstrap class path 705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * or synthesizing a class loader to manage it, we just make it available 706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * here. It logically comes after all existing entries in the bootstrap 707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class path. 708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.bootClassPathOptExtra != NULL) { 710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = 713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexFindClass(gDvm.bootClassPathOptExtra->pDexFile, descriptor); 714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = gDvm.bootClassPathOptExtra; 718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfound: 722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *ppClassDef = pFoundDef; 723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return pFoundFile; 724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set the "extra" DEX, which becomes a de facto member of the bootstrap 728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class set. 729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetBootPathExtraDex(DvmDex* pDvmDex) 731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPathOptExtra = pDvmDex; 733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Return the #of entries in the bootstrap class path. 738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (Used for ClassLoader.getResources().) 740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmGetBootPathSize(void) 742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) 746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return cpe - gDvm.bootClassPath; 749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find a resource with the specified name in entry N of the boot class path. 753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We return a newly-allocated String of one of these forms: 755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * file://path/name 756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * jar:file://path!/name 757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Where "path" is the bootstrap class path entry and "name" is the string 758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * passed into this method. "path" needs to be an absolute path (starting 759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with '/'); if it's not we'd need to "absolutify" it as part of forming 760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the URL string. 761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectStringObject* dvmGetBootPathResource(const char* name, int idx) 763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const int kUrlOverhead = 13; // worst case for Jar URL 765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StringObject* urlObj = NULL; 767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ searching for resource '%s' in %d(%s)\n", 769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project name, idx, cpe[idx].fileName); 770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* we could use direct array index, but I don't entirely trust "idx" */ 772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (idx-- && cpe->kind != kCpeLastEntry) 773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cpe->kind == kCpeLastEntry) { 775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char urlBuf[strlen(name) + strlen(cpe->fileName) + kUrlOverhead +1]; 780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: 783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sprintf(urlBuf, "file://%s/%s", cpe->fileName, name); 784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (access(urlBuf+7, F_OK) != 0) 785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dexZipFindEntry(&pJarFile->archive, name) == NULL) 791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sprintf(urlBuf, "jar:file://%s!/%s", cpe->fileName, name); 793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("No resources in DEX files\n"); 797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ using URL='%s'\n", urlBuf); 80481f3ebe03cd33c9003641084bece0604ee68bf88Barry Hayes urlObj = dvmCreateStringFromCstr(urlBuf); 805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return urlObj; 808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class list management 814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* search for these criteria in the Class hash table */ 818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecttypedef struct ClassMatchCriteria { 819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader; 821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} ClassMatchCriteria; 822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define kInitLoaderInc 4 /* must be power of 2 */ 824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 8252c98747b403970ef4b3352e271633f93935b9825Barry Hayesstatic InitiatingLoaderList *dvmGetInitiatingLoaderList(ClassObject* clazz) 8262c98747b403970ef4b3352e271633f93935b9825Barry Hayes{ 827c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz->serialNumber >= INITIAL_CLASS_SERIAL_NUMBER); 8282c98747b403970ef4b3352e271633f93935b9825Barry Hayes int classIndex = clazz->serialNumber-INITIAL_CLASS_SERIAL_NUMBER; 8292c98747b403970ef4b3352e271633f93935b9825Barry Hayes if (gDvm.initiatingLoaderList != NULL && 8302c98747b403970ef4b3352e271633f93935b9825Barry Hayes classIndex < ZYGOTE_CLASS_CUTOFF) { 8312c98747b403970ef4b3352e271633f93935b9825Barry Hayes return &(gDvm.initiatingLoaderList[classIndex]); 8322c98747b403970ef4b3352e271633f93935b9825Barry Hayes } else { 8332c98747b403970ef4b3352e271633f93935b9825Barry Hayes return &(clazz->initiatingLoaderList); 8342c98747b403970ef4b3352e271633f93935b9825Barry Hayes } 8352c98747b403970ef4b3352e271633f93935b9825Barry Hayes} 8362c98747b403970ef4b3352e271633f93935b9825Barry Hayes 837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Determine if "loader" appears in clazz' initiating loader list. 839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class hash table lock must be held when calling here, since 841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it's also used when updating a class' initiating loader list. 842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: switch to some sort of lock-free data structure so we don't have 844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to grab the lock to do a lookup. Among other things, this would improve 845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the speed of compareDescriptorClasses(). 846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmLoaderInInitiatingList(const ClassObject* clazz, const Object* loader) 848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The bootstrap class loader can't be just an initiating loader for 851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything (it's always the defining loader if the class is visible 852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to it). We don't put defining loaders in the initiating list. 853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader == NULL) 855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Scan the list for a match. The list is expected to be short. 859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 8602c98747b403970ef4b3352e271633f93935b9825Barry Hayes /* Cast to remove the const from clazz, but use const loaderList */ 8612c98747b403970ef4b3352e271633f93935b9825Barry Hayes ClassObject* nonConstClazz = (ClassObject*) clazz; 8622c98747b403970ef4b3352e271633f93935b9825Barry Hayes const InitiatingLoaderList *loaderList = 8632c98747b403970ef4b3352e271633f93935b9825Barry Hayes dvmGetInitiatingLoaderList(nonConstClazz); 864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 8652c98747b403970ef4b3352e271633f93935b9825Barry Hayes for (i = loaderList->initiatingLoaderCount-1; i >= 0; --i) { 8662c98747b403970ef4b3352e271633f93935b9825Barry Hayes if (loaderList->initiatingLoaders[i] == loader) { 867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("+++ found initiating match %p in %s\n", 868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // loader, clazz->descriptor); 869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add "loader" to clazz's initiating loader set, unless it's the defining 877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class loader. 878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In the common case this will be a short list, so we don't need to do 880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything too fancy here. 881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This locks gDvm.loadedClasses for synchronization, so don't hold it 883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * when calling here. 884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmAddInitiatingLoader(ClassObject* clazz, Object* loader) 886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != clazz->classLoader) { 888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader != NULL); 889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Adding %p to '%s' init list\n", loader, clazz->descriptor); 891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Make sure nobody snuck in. The penalty for adding twice is 895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pretty minor, and probably outweighs the O(n^2) hit for 896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * checking before every add, so we may not want to do this. 897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 8982c98747b403970ef4b3352e271633f93935b9825Barry Hayes //if (dvmLoaderInInitiatingList(clazz, loader)) { 8992c98747b403970ef4b3352e271633f93935b9825Barry Hayes // LOGW("WOW: simultaneous add of initiating class loader\n"); 9002c98747b403970ef4b3352e271633f93935b9825Barry Hayes // goto bail_unlock; 9012c98747b403970ef4b3352e271633f93935b9825Barry Hayes //} 902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The list never shrinks, so we just keep a count of the 905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * number of elements in it, and reallocate the buffer when 906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we run off the end. 907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The pointer is initially NULL, so we *do* want to call realloc 909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * when count==0. 910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 9112c98747b403970ef4b3352e271633f93935b9825Barry Hayes InitiatingLoaderList *loaderList = dvmGetInitiatingLoaderList(clazz); 9122c98747b403970ef4b3352e271633f93935b9825Barry Hayes if ((loaderList->initiatingLoaderCount & (kInitLoaderInc-1)) == 0) { 913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object** newList; 914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 9152c98747b403970ef4b3352e271633f93935b9825Barry Hayes newList = (Object**) realloc(loaderList->initiatingLoaders, 9162c98747b403970ef4b3352e271633f93935b9825Barry Hayes (loaderList->initiatingLoaderCount + kInitLoaderInc) 917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sizeof(Object*)); 918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newList == NULL) { 919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* this is mainly a cache, so it's not the EotW */ 920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 9232c98747b403970ef4b3352e271633f93935b9825Barry Hayes loaderList->initiatingLoaders = newList; 924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("Expanded init list to %d (%s)\n", 9262c98747b403970ef4b3352e271633f93935b9825Barry Hayes // loaderList->initiatingLoaderCount+kInitLoaderInc, 927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor); 928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 9292c98747b403970ef4b3352e271633f93935b9825Barry Hayes loaderList->initiatingLoaders[loaderList->initiatingLoaderCount++] = 9302c98747b403970ef4b3352e271633f93935b9825Barry Hayes loader; 931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_unlock: 933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This is a dvmHashTableLookup callback.) 939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Entries in the class hash table are stored as { descriptor, d-loader } 941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * tuples. If the hashed class descriptor matches the requested descriptor, 942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and the hashed defining class loader matches the requested class 943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader, we're good. If only the descriptor matches, we check to see if the 944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader is in the hashed class' initiating loader list. If so, we 945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * can return "true" immediately and skip some of the loadClass melodrama. 946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller must lock the hash table before calling here. 948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns 0 if a matching entry is found, nonzero otherwise. 950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int hashcmpClassByCrit(const void* vclazz, const void* vcrit) 952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassMatchCriteria* pCrit = (const ClassMatchCriteria*) vcrit; 955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool match; 956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project match = (strcmp(clazz->descriptor, pCrit->descriptor) == 0 && 958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (clazz->classLoader == pCrit->loader || 959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (pCrit->loader != NULL && 960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLoaderInInitiatingList(clazz, pCrit->loader)) )); 961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //if (match) 962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // LOGI("+++ %s %p matches existing %s %p\n", 963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // pCrit->descriptor, pCrit->loader, 964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->classLoader); 965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return !match; 966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Like hashcmpClassByCrit, but passing in a fully-formed ClassObject 970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * instead of a ClassMatchCriteria. 971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int hashcmpClassByClass(const void* vclazz, const void* vaddclazz) 973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* addClazz = (const ClassObject*) vaddclazz; 976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool match; 977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project match = (strcmp(clazz->descriptor, addClazz->descriptor) == 0 && 979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (clazz->classLoader == addClazz->classLoader || 980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (addClazz->classLoader != NULL && 981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLoaderInInitiatingList(clazz, addClazz->classLoader)) )); 982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return !match; 983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Search through the hash table to find an entry with a matching descriptor 987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and an initiating class loader that matches "loader". 988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The table entries are hashed on descriptor only, because they're unique 990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on *defining* class loader, not *initiating* class loader. This isn't 991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * great, because it guarantees we will have to probe when multiple 992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class loaders are used. 993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note this does NOT try to load a class; it just finds a class that 995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has already been loaded. 996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If "unprepOkay" is set, this will return classes that have been added 998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to the hash table but are not yet fully loaded and linked. Otherwise, 999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * such classes are ignored. (The only place that should set "unprepOkay" 1000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * is findClassNoInit(), which will wait for the prep to finish.) 1001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns NULL if not found. 1003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmLookupClass(const char* descriptor, Object* loader, 1005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool unprepOkay) 1006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassMatchCriteria crit; 1008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void* found; 1009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash; 1010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project crit.descriptor = descriptor; 1012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project crit.loader = loader; 1013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hash = dvmComputeUtf8Hash(descriptor); 1014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("threadid=%d: dvmLookupClass searching for '%s' %p\n", 1016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThreadSelf()->threadId, descriptor, loader); 1017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = dvmHashTableLookup(gDvm.loadedClasses, hash, &crit, 1020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByCrit, false); 1021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class has been added to the hash table but isn't ready for use. 1025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're going to act like we didn't see it, so that the caller will 1026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * go through the full "find class" path, which includes locking the 1027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * object and waiting until it's ready. We could do that lock/wait 1028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * here, but this is an extremely rare case, and it's simpler to have 1029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the wait-for-class code centralized. 1030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (found != NULL && !unprepOkay && !dvmIsClassLinked(found)) { 1032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Ignoring not-yet-ready %s, using slow path\n", 1033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ((ClassObject*)found)->descriptor); 1034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = NULL; 1035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (ClassObject*) found; 1038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add a new class to the hash table. 1042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class is considered "new" if it doesn't match on both the class 1044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptor and the defining class loader. 1045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: we should probably have separate hash tables for each 1047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ClassLoader. This could speed up dvmLookupClass and 1048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * other common operations. It does imply a VM-visible data structure 1049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for each ClassLoader object with loaded classes, which we don't 1050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have yet. 1051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmAddClassToHash(ClassObject* clazz) 1053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void* found; 1055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash; 1056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hash = dvmComputeUtf8Hash(clazz->descriptor); 1058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = dvmHashTableLookup(gDvm.loadedClasses, hash, clazz, 1061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByClass, true); 1062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ dvmAddClassToHash '%s' %p (isnew=%d) --> %p\n", 1065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader, 1066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (found == (void*) clazz), clazz); 1067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmCheckClassTablePerf(); 1069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* can happen if two threads load the same class simultaneously */ 1071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (found == (void*) clazz); 1072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if 0 1075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compute hash value for a class. 1077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectu4 hashcalcClass(const void* item) 1079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmComputeUtf8Hash(((const ClassObject*) item)->descriptor); 1081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Check the performance of the "loadedClasses" hash table. 1085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmCheckClassTablePerf(void) 1087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableProbeCount(gDvm.loadedClasses, hashcalcClass, 1090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByClass); 1091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Remove a class object from the hash table. 1097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void removeClassFromHash(ClassObject* clazz) 1099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ removeClassFromHash '%s'\n", clazz->descriptor); 1101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash = dvmComputeUtf8Hash(clazz->descriptor); 1103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmHashTableRemove(gDvm.loadedClasses, hash, clazz)) 1106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Hash table remove failed on class '%s'\n", clazz->descriptor); 1107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 1113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class creation 1114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 1115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set clazz->serialNumber to the next available value. 1119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This usually happens *very* early in class creation, so don't expect 1121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything else in the class to be ready. 1122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetClassSerialNumber(ClassObject* clazz) 1124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 oldValue, newValue; 1126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->serialNumber == 0); 1128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { 1130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldValue = gDvm.classSerialNumber; 1131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newValue = oldValue + 1; 11326e10b9aaa72425a4825a25f0043533d0c6fdbba4Andy McFadden } while (android_atomic_release_cas(oldValue, newValue, 11336e10b9aaa72425a4825a25f0043533d0c6fdbba4Andy McFadden &gDvm.classSerialNumber) != 0); 1134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->serialNumber = (u4) oldValue; 1136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), using the specified 1141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * initiating ClassLoader. 1142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class will be loaded and initialized if it has not already been. 1144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If necessary, the superclass will be loaded. 1145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class can't be found, returns NULL with an appropriate exception 1147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * raised. 1148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindClass(const char* descriptor, Object* loader) 1150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindClassNoInit(descriptor, loader); 1154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL && clazz->status < CLASS_INITIALIZED) { 1155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* initialize class */ 1156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz)) { 1157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init failed; leave it in the list, marked as bad */ 1158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 1159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_ERROR); 1160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), using the specified 1169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * initiating ClassLoader. 1170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class will be loaded if it has not already been, as will its 1172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass. It will not be initialized. 1173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class can't be found, returns NULL with an appropriate exception 1175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * raised. 1176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindClassNoInit(const char* descriptor, 1178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader) 1179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(descriptor != NULL); 1181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //assert(loader != NULL); 1182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("FindClassNoInit '%s' %p\n", descriptor, loader); 1184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*descriptor == '[') { 1186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Array class. Find in table, generate if not found. 1188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmFindArrayClass(descriptor, loader); 1190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Regular class. Find in table, load if not found. 1193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != NULL) { 1195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassFromLoaderNoInit(descriptor, loader); 1196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmFindSystemClassNoInit(descriptor); 1198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load the named class (by descriptor) from the specified class 1204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader. This calls out to let the ClassLoader object do its thing. 1205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns with NULL and an exception raised on error. 1207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassFromLoaderNoInit(const char* descriptor, 1209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader) 1210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("##### findClassFromLoaderNoInit (%s,%p)\n", 1212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // descriptor, loader); 1213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 1215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader != NULL); 1218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Do we already have it? 1221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class loader code does the "is it already loaded" check as 1223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * well. However, this call is much faster than calling through 1224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interpreted code. Doing this does mean that in the common case 1225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (365 out of 420 calls booting the sim) we're doing the 1226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * lookup-by-descriptor twice. It appears this is still a win, so 1227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm keeping it in. 1228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, false); 1230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL) { 1231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Already loaded: %s %p\n", descriptor, loader); 1232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Not already loaded: %s %p\n", descriptor, loader); 1235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* dotName = NULL; 1238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StringObject* nameObj = NULL; 1239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* excep; 1240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* loadClass; 1241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* convert "Landroid/debug/Stuff;" to "android.debug.Stuff" */ 1243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dotName = dvmDescriptorToDot(descriptor); 1244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dotName == NULL) { 1245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/OutOfMemoryError;", NULL); 1246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 124881f3ebe03cd33c9003641084bece0604ee68bf88Barry Hayes nameObj = dvmCreateStringFromCstr(dotName); 1249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (nameObj == NULL) { 1250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 1251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // TODO: cache the vtable offset 1255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadClass = dvmFindVirtualMethodHierByDescriptor(loader->clazz, "loadClass", 1256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "(Ljava/lang/String;)Ljava/lang/Class;"); 1257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loadClass == NULL) { 1258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Couldn't find loadClass in ClassLoader\n"); 1259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepBegin(); 1264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Invoke loadClass(). This will probably result in a couple of 1268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exceptions being thrown, because the ClassLoader.loadClass() 1269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implementation eventually calls VMClassLoader.loadClass to see if 1270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the bootstrap class loader can find it before doing its own load. 1271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- Invoking loadClass(%s, %p)\n", dotName, loader); 1273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue result; 1274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, loadClass, loader, &result, nameObj); 1275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = (ClassObject*) result.l; 1276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepEnd(); 1279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project excep = dvmGetException(self); 1282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (excep != NULL) { 1283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if DVM_SHOW_EXCEPTION >= 2 1284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGD("NOTE: loadClass '%s' %p threw exception %s\n", 1285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dotName, loader, excep->clazz->descriptor); 1286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc(excep, self); 1288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(self); 1289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowChainedExceptionWithClassMessage( 1290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/NoClassDefFoundError;", descriptor, excep); 1291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(excep, self); 1292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL); 1296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddInitiatingLoader(clazz, loader); 1299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- Successfully loaded %s %p (thisldr=%p clazz=%p)\n", 1301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, clazz->classLoader, loader, clazz); 1302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 1304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*)nameObj, NULL); 1305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(dotName); 1306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load the named class (by descriptor) from the specified DEX file. 1311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Used by class loaders to instantiate a class object from a 1312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * VM-managed DEX. 1313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmDefineClass(DvmDex* pDvmDex, const char* descriptor, 1315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* classLoader) 1316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pDvmDex != NULL); 1318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassNoInit(descriptor, classLoader, pDvmDex); 1320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), scanning through the 1325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bootclasspath if it hasn't already been loaded. 1326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "descriptor" looks like "Landroid/debug/Stuff;". 1328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Uses NULL as the defining class loader. 1330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindSystemClass(const char* descriptor) 1332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindSystemClassNoInit(descriptor); 1336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL && clazz->status < CLASS_INITIALIZED) { 1337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* initialize class */ 1338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz)) { 1339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init failed; leave it in the list, marked as bad */ 1340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 1341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_ERROR); 1342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), searching for it in the 1351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bootclasspath. 1352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, this returns NULL with an exception raised. 1354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindSystemClassNoInit(const char* descriptor) 1356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassNoInit(descriptor, NULL, NULL); 1358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor). If it's not already loaded, 1362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we load it and link it, but don't execute <clinit>. (The VM has 1363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * specific limitations on which events can cause initialization.) 1364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If "pDexFile" is NULL, we will search the bootclasspath for an entry. 1366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, this returns NULL with an exception raised. 1368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: we need to return an indication of whether we loaded the class or 1370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * used an existing definition. If somebody deliberately tries to load a 1371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class twice in the same class loader, they should get a LinkageError, 1372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but inadvertent simultaneous class references should "just work". 1373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassNoInit(const char* descriptor, Object* loader, 1375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex) 1376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 1378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool profilerNotified = false; 1381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != NULL) { 1384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("#### findClassNoInit(%s,%p,%p)\n", descriptor, loader, 1385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex->pDexFile); 1386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't expect an exception to be raised at this point. The 1390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exception handling code is good about managing this. This *can* 1391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * happen if a JNI lookup fails and the JNI code doesn't do any 1392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * error checking before doing another class lookup, so we may just 1393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * want to clear this and restore it on exit. If we don't, some kinds 1394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of failures can't be detected without rearranging other stuff. 1395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Most often when we hit this situation it means that something is 1397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * broken in the VM or in JNI code, so I'm keeping it in place (and 1398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * making it an informative abort rather than an assert). 1399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 1401504e9f4441c3a013047931d24a978523a26fde2dAndy McFadden LOGE("Class lookup %s attempted while exception %s pending\n", 1402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, dvmGetException(self)->clazz->descriptor); 1403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDumpAllThreads(false); 1404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 1405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, true); 1408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) { 1409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 1410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepBegin(); 1413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project profilerNotified = true; 1414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u8 startTime = dvmGetThreadCpuTimeNsec(); 1418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDvmDex == NULL) { 1421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader == NULL); /* shouldn't be here otherwise */ 1422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = searchBootPathForClass(descriptor, &pClassDef); 1423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 1425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDvmDex == NULL || pClassDef == NULL) { 14287fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden if (gDvm.noClassDefFoundErrorObj != NULL) { 14297fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden /* usual case -- use prefabricated object */ 14307fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden dvmSetException(self, gDvm.noClassDefFoundErrorObj); 14317fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden } else { 14327fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden /* dexopt case -- can't guarantee prefab (core.jar) */ 14337fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden dvmThrowExceptionWithClassMessage( 14347fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden "Ljava/lang/NoClassDefFoundError;", descriptor); 14357fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden } 1436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found a match, try to load it */ 1440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = loadClassFromDex(pDvmDex, pClassDef, loader); 1441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 1442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* class was found but had issues */ 1443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Lock the class while we link it so other threads must wait for us 1449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to finish. Set the "initThreadId" so we can identify recursive 1450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * invocation. 1451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 1453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = self->threadId; 1454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add to hash table so lookups succeed. 1457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * [Are circular references possible when linking a class?] 1459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->classLoader == loader); 1461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmAddClassToHash(clazz)) { 1462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Another thread must have loaded the class after we 1464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * started but before we finished. Discard what we've 1465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * done and leave some hints for the GC. 1466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (Yes, this happens.) 1468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGW("WOW: somebody loaded %s simultaneously\n", descriptor); 1470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = 0; 1471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Let the GC free the class. 1474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Grab the winning class. 1478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, true); 1480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL); 1481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto got_class; 1482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoadWithTime('>', clazz, startTime); 1487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Prepare and resolve. 1490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1491c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (!dvmLinkClass(clazz)) { 1492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 1493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Make note of the error and clean up the class. 1495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project removeClassFromHash(clazz); 1497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 1498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFreeClassInnards(clazz); 1499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Let any waiters know. 1501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = 0; 1503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 1504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOG(LOG_INFO, "DVMLINK FAILED FOR CLASS ", "%s in %s\n", 1508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, get_process_name()); 1509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: It would probably be better to use a new type code here (instead of '<') to 1512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * indicate the failure. This change would require a matching change in the parser 1513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and analysis code in frameworks/base/tools/preload. 1514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('<', clazz); 1516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.optimizing) { 1519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* happens with "external" libs */ 1520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Link of class '%s' failed\n", descriptor); 1521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Link of class '%s' failed\n", descriptor); 1523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 1527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add class stats to global counters. 1531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: these should probably be atomic ops. 1533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numLoadedClasses++; 1535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredMethods += 1536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount + clazz->directMethodCount; 1537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredInstFields += clazz->ifieldCount; 1538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredStaticFields += clazz->sfieldCount; 1539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache pointers to basic classes. We want to use these in 1542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * various places, and it's easiest to initialize them on first 1543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * use rather than trying to force them to initialize (startup 1544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ordering makes it weird). 1545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangObject == NULL && 1547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project strcmp(descriptor, "Ljava/lang/Object;") == 0) 1548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* It should be impossible to get here with anything 1550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but the bootclasspath loader. 1551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader == NULL); 1553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangObject = clazz; 1554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('<', clazz); 1558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectgot_class: 1562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsClassLinked(clazz) && clazz->status != CLASS_ERROR) { 1563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can race with other threads for class linking. We should 1565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * never get here recursively; doing so indicates that two 1566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * classes have circular dependencies. 1567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * One exception: we force discovery of java.lang.Class in 1569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmLinkClass(), and Class has Object as its superclass. So 1570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * if the first thing we ever load is Object, we will init 1571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Object->Class->Object. The easiest way to avoid this is to 1572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ensure that Object is never the first thing we look up, so 1573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we get Foo->Class->Object instead. 1574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 1576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsClassLinked(clazz) && 1577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId == self->threadId) 1578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Recursive link on class %s\n", clazz->descriptor); 1580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage( 1582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ClassCircularityError;", clazz->descriptor); 1583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("WAITING for '%s' (owner=%d)\n", 1587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->initThreadId); 1588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (!dvmIsClassLinked(clazz) && clazz->status != CLASS_ERROR) { 1589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectWait(self, (Object*) clazz, 0, 0, false); 1590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 1594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Somebody else tried to load this and failed. We need to raise 1596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception and report failure. 1597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 1599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* check some invariants */ 1605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmIsClassLinked(clazz)); 1606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.classJavaLangClass != NULL); 1607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.classJavaLangClass); 1608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != gDvm.classJavaLangObject) { 1609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super == NULL) { 1610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Non-Object has no superclass (gDvm.classJavaLangObject=%p)\n", 1611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangObject); 1612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 1613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(clazz)) { 1616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("class=%s vtableCount=%d, virtualMeth=%d\n", 1617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->vtableCount, 1618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->virtualMethodCount); 1619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtableCount >= clazz->virtualMethodCount); 1620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Normally class objects are initialized before we instantiate them, 1624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but we can't do that with java.lang.Class (chicken, meet egg). We 1625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * do it explicitly here. 1626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The verifier could call here to find Class while verifying Class, 1628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * so we need to check for CLASS_VERIFYING as well as !initialized. 1629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == gDvm.classJavaLangClass && !dvmIsClassInitialized(clazz) && 1631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project !(clazz->status == CLASS_VERIFYING)) 1632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ explicitly initializing %s\n", clazz->descriptor); 1634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmInitClass(clazz); 1635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 1638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef WITH_PROFILER 1639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (profilerNotified) 1640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepEnd(); 1641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL || dvmCheckException(self)); 1643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Helper for loadClassFromDex, which takes a DexClassDataHeader and 1648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * encoded data pointer in addition to the other arguments. 1649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex0(DvmDex* pDvmDex, 1651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, const DexClassDataHeader* pHeader, 1652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u1* pEncodedData, Object* classLoader) 1653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* newClass = NULL; 1655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFile* pDexFile; 1656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 1657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 1658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = pDvmDex->pDexFile; 1660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexGetClassDescriptor(pDexFile, pClassDef); 1661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Make sure the aren't any "bonus" flags set, since we use them for 1664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * runtime state. 1665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((pClassDef->accessFlags & ~EXPECTED_FILE_FLAGS) != 0) { 1667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Invalid file flags in class %s: %04x\n", 1668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, pClassDef->accessFlags); 1669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Allocate storage for the class object on the GC heap, so that other 1674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * objects can have references to it. We bypass the usual mechanism 1675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (allocObject), because we don't have all the bits and pieces yet. 1676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note that we assume that java.lang.Class does not override 1678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finalize(). 1679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1680c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* TODO: Can there be fewer special checks in the usual path? */ 1681c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(descriptor != NULL); 1682c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (classLoader == NULL && 1683c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes strcmp(descriptor, "Ljava/lang/Class;") == 0) { 1684c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(gDvm.classJavaLangClass != NULL); 1685c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes newClass = gDvm.classJavaLangClass; 1686c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } else { 1687c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes size_t size = classObjectSize(pHeader->staticFieldsSize); 1688c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes newClass = (ClassObject*) dvmMalloc(size, ALLOC_DEFAULT); 1689c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 1690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newClass == NULL) 1691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1693c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes DVM_OBJECT_INIT(&newClass->obj, gDvm.classJavaLangClass); 1694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetClassSerialNumber(newClass); 1695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->descriptor = descriptor; 1696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(newClass->descriptorAlloc == NULL); 1697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->accessFlags = pClassDef->accessFlags; 1698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->classLoader = classLoader; 1699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->pDvmDex = pDvmDex; 1700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->primitiveType = PRIM_NOT; 1701c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes newClass->status = CLASS_IDX; 1702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Stuff the superclass index into the object pointer field. The linker 1705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pulls it out and replaces it with a resolved ClassObject pointer. 1706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm doing it this way (rather than having a dedicated superclassIdx 1707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field) to save a few bytes of overhead per class. 1708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * newClass->super is not traversed or freed by dvmFreeClassInnards, so 1710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this is safe. 1711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1712c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(sizeof(u4) == sizeof(ClassObject*)); /* 32-bit check */ 1713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->super = (ClassObject*) pClassDef->superclassIdx; 1714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Stuff class reference indices into the pointer fields. 1717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The elements of newClass->interfaces are not traversed or freed by 1719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmFreeClassInnards, so this is GC-safe. 1720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexTypeList* pInterfacesList; 1722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pInterfacesList = dexGetInterfacesList(pDexFile, pClassDef); 1723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pInterfacesList != NULL) { 1724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaceCount = pInterfacesList->size; 1725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaces = (ClassObject**) dvmLinearAlloc(classLoader, 1726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaceCount * sizeof(ClassObject*)); 1727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < newClass->interfaceCount; i++) { 1729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexTypeItem* pType = dexGetTypeItem(pInterfacesList, i); 1730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaces[i] = (ClassObject*)(u4) pType->typeIdx; 1731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->interfaces); 1733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* load field definitions */ 1736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 173803aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * Over-allocate the class object and append static field info 173903aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * onto the end. It's fixed-size and known at alloc time. This 174003aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * seems to increase zygote sharing. Heap compaction will have to 174103aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * be careful if it ever tries to move ClassObject instances, 174203aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * because we pass Field pointers around internally. But at least 174303aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * now these Field pointers are in the object heap. 1744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->staticFieldsSize != 0) { 1747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* static fields stay on system heap; field data isn't "write once" */ 1748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->staticFieldsSize; 1749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexField field; 1751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->sfieldCount = count; 1753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataField(&pEncodedData, &field, &lastIndex); 1755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadSFieldFromDex(newClass, &field, &newClass->sfields[i]); 1756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->instanceFieldsSize != 0) { 1760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->instanceFieldsSize; 1761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexField field; 1763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->ifieldCount = count; 1765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->ifields = (InstField*) dvmLinearAlloc(classLoader, 1766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(InstField)); 1767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataField(&pEncodedData, &field, &lastIndex); 1769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadIFieldFromDex(newClass, &field, &newClass->ifields[i]); 1770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->ifields); 1772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 177499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* 177599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * Load method definitions. We do this in two batches, direct then 177699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * virtual. 177799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * 177899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * If register maps have already been generated for this class, and 177999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * precise GC is enabled, we pull out pointers to them. We know that 178099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * they were streamed to the DEX file in the same order in which the 178199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * methods appear. 178299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * 178399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * If the class wasn't pre-verified, the maps will be generated when 178499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * the class is verified during class initialization. 178599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project */ 178699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project u4 classDefIdx = dexGetIndexForClassDef(pDexFile, pClassDef); 178799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project const void* classMapData; 178899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project u4 numMethods; 178999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project 179099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (gDvm.preciseGc) { 179199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project classMapData = 1792d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden dvmRegisterMapGetClassData(pDexFile, classDefIdx, &numMethods); 179399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project 179499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* sanity check */ 179599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (classMapData != NULL && 179699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project pHeader->directMethodsSize + pHeader->virtualMethodsSize != numMethods) 179799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project { 179899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project LOGE("ERROR: in %s, direct=%d virtual=%d, maps have %d\n", 179999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->descriptor, pHeader->directMethodsSize, 180099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project pHeader->virtualMethodsSize, numMethods); 180199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert(false); 180299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project classMapData = NULL; /* abandon */ 180399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 180499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } else { 180599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project classMapData = NULL; 180699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 1807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->directMethodsSize != 0) { 1809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->directMethodsSize; 1810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexMethod method; 1812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->directMethodCount = count; 1814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->directMethods = (Method*) dvmLinearAlloc(classLoader, 1815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(Method)); 1816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataMethod(&pEncodedData, &method, &lastIndex); 1818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadMethodFromDex(newClass, &method, &newClass->directMethods[i]); 181999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (classMapData != NULL) { 1820d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden const RegisterMap* pMap = dvmRegisterMapGetNext(&classMapData); 1821d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden if (dvmRegisterMapGetFormat(pMap) != kRegMapFormatNone) { 182299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->directMethods[i].registerMap = pMap; 182399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* TODO: add rigorous checks */ 182499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert((newClass->directMethods[i].registersSize+7) / 8 == 182599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->directMethods[i].registerMap->regWidth); 182699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 182799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 1828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->directMethods); 1830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->virtualMethodsSize != 0) { 1833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->virtualMethodsSize; 1834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexMethod method; 1836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->virtualMethodCount = count; 1838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->virtualMethods = (Method*) dvmLinearAlloc(classLoader, 1839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(Method)); 1840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataMethod(&pEncodedData, &method, &lastIndex); 1842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadMethodFromDex(newClass, &method, &newClass->virtualMethods[i]); 184399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (classMapData != NULL) { 1844d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden const RegisterMap* pMap = dvmRegisterMapGetNext(&classMapData); 1845d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden if (dvmRegisterMapGetFormat(pMap) != kRegMapFormatNone) { 184699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->virtualMethods[i].registerMap = pMap; 184799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* TODO: add rigorous checks */ 184899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert((newClass->virtualMethods[i].registersSize+7) / 8 == 184999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->virtualMethods[i].registerMap->regWidth); 185099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 185199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 1852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->virtualMethods); 1854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->sourceFile = dexGetSourceFile(pDexFile, pClassDef); 1857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* caller must call dvmReleaseTrackedAlloc */ 1859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return newClass; 1860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Try to load the indicated class from the specified DEX file. 1864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This is effectively loadClass()+defineClass() for a DexClassDef. The 1866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loading was largely done when we crunched through the DEX. 1867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns NULL on failure. If we locate the class but encounter an error 1869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * while processing it, an appropriate exception is thrown. 1870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex(DvmDex* pDvmDex, 1872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, Object* classLoader) 1873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result; 1875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexClassDataHeader header; 1876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u1* pEncodedData; 1877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFile* pDexFile; 1878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((pDvmDex != NULL) && (pClassDef != NULL)); 1880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = pDvmDex->pDexFile; 1881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) { 1883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: loading '%s'...\n", 1884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexGetClassDescriptor(pDexFile, pClassDef)); 1885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pEncodedData = dexGetClassData(pDexFile, pClassDef); 1888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pEncodedData != NULL) { 1890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataHeader(&pEncodedData, &header); 1891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Provide an all-zeroes header for the rest of the loading. 1893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memset(&header, 0, sizeof(header)); 1894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = loadClassFromDex0(pDvmDex, pClassDef, &header, pEncodedData, 1897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project classLoader); 1898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass && (result != NULL)) { 1900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("[Loaded %s from DEX %p (cl=%p)]\n", 1901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result->descriptor, pDvmDex, classLoader); 1902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 1905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free anything in a ClassObject that was allocated on the system heap. 1909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The ClassObject itself is allocated on the GC heap, so we leave it for 1911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the garbage collector. 1912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: this may be called with a partially-constructed object. 1914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: there is no particular ordering imposed, so don't go poking at 1915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclasses. 1916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmFreeClassInnards(ClassObject* clazz) 1918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void *tp; 1920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 1921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) 1923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 1924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1925c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz->obj.clazz == gDvm.classJavaLangClass); 1926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Guarantee that dvmFreeClassInnards can be called on a given 1928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class multiple times by clearing things out as we free them. 1929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't make any attempt at real atomicity here; higher 1930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * levels need to make sure that no two threads can free the 1931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * same ClassObject at the same time. 1932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: maybe just make it so the GC will never free the 1934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * innards of an already-freed class. 1935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: this #define isn't MT-safe -- the compiler could rearrange it. 1937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define NULL_AND_FREE(p) \ 1939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { \ 1940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((p) != NULL) { \ 1941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tp = (p); \ 1942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (p) = NULL; \ 1943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(tp); \ 1944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } \ 1945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } while (0) 1946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define NULL_AND_LINEAR_FREE(p) \ 1947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { \ 1948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((p) != NULL) { \ 1949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tp = (p); \ 1950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (p) = NULL; \ 1951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, tp); \ 1952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } \ 1953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } while (0) 1954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* arrays just point at Object's vtable; don't free vtable in this case. 1956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmIsArrayClass() checks clazz->descriptor, so we have to do this check 1957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * before freeing the name. 1958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = -1; 1960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsArrayClass(clazz)) { 1961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = NULL; 1962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->vtable); 1964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor = NULL; 1967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_FREE(clazz->descriptorAlloc); 1968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->directMethods != NULL) { 1970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *directMethods = clazz->directMethods; 1971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int directMethodCount = clazz->directMethodCount; 1972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->directMethods = NULL; 1973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->directMethodCount = -1; 1974b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadWrite(clazz->classLoader, directMethods); 1975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < directMethodCount; i++) { 1976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeMethodInnards(&directMethods[i]); 1977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1978b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadOnly(clazz->classLoader, directMethods); 1979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, directMethods); 1980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->virtualMethods != NULL) { 1982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *virtualMethods = clazz->virtualMethods; 1983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int virtualMethodCount = clazz->virtualMethodCount; 1984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount = -1; 1985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods = NULL; 1986b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadWrite(clazz->classLoader, virtualMethods); 1987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < virtualMethodCount; i++) { 1988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeMethodInnards(&virtualMethods[i]); 1989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1990b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadOnly(clazz->classLoader, virtualMethods); 1991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, virtualMethods); 1992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 19942c98747b403970ef4b3352e271633f93935b9825Barry Hayes InitiatingLoaderList *loaderList = dvmGetInitiatingLoaderList(clazz); 19952c98747b403970ef4b3352e271633f93935b9825Barry Hayes loaderList->initiatingLoaderCount = -1; 19962c98747b403970ef4b3352e271633f93935b9825Barry Hayes NULL_AND_FREE(loaderList->initiatingLoaders); 1997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaceCount = -1; 1999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->interfaces); 2000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftableCount = -1; 2002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->iftable); 2003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPoolCount = -1; 2005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->ifviPool); 2006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->sfieldCount = -1; 200803aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes /* The sfields are attached to the ClassObject, and will be freed 200903aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * with it. */ 2010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldCount = -1; 2012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->ifields); 2013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#undef NULL_AND_FREE 2015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#undef NULL_AND_LINEAR_FREE 2016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free anything in a Method that was allocated on the system heap. 202099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * 202199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * The containing class is largely torn down by this point. 2022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeMethodInnards(Method* meth) 2024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if 0 2026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->exceptions); 2027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->lines); 2028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->locals); 2029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 203099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project 203199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* 203299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * Some register maps are allocated on the heap, either because of late 203399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * verification or because we're caching an uncompressed form. 203499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project */ 203599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project const RegisterMap* pMap = meth->registerMap; 2036d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden if (pMap != NULL && dvmRegisterMapGetOnHeap(pMap)) { 203799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project dvmFreeRegisterMap((RegisterMap*) pMap); 203899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project meth->registerMap = NULL; 203999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 2040b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2041b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden /* 2042b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * We may have copied the instructions. 2043b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden */ 2044b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden if (IS_METHOD_FLAG_SET(meth, METHOD_ISWRITABLE)) { 2045b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* methodDexCode = (DexCode*) dvmGetMethodCode(meth); 2046b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearFree(meth->clazz->classLoader, methodDexCode); 2047b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden } 2048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Clone a Method, making new copies of anything that will be freed up 205299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * by freeMethodInnards(). This is used for "miranda" methods. 2053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void cloneMethod(Method* dst, const Method* src) 2055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 205699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (src->registerMap != NULL) { 205799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project LOGE("GLITCH: only expected abstract methods here\n"); 205899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project LOGE(" cloning %s.%s\n", src->clazz->descriptor, src->name); 205999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project dvmAbort(); 206099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 2061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(dst, src, sizeof(Method)); 2062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pull the interesting pieces out of a DexMethod. 2066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The DEX file isn't going anywhere, so we don't need to make copies of 2068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the code area. 2069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadMethodFromDex(ClassObject* clazz, const DexMethod* pDexMethod, 2071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth) 2072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexMethodId* pMethodId; 2075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexCode* pDexCode; 2076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pMethodId = dexGetMethodId(pDexFile, pDexMethod->methodIdx); 2078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name = dexStringById(pDexFile, pMethodId->nameIdx); 2080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexProtoSetFromMethodId(&meth->prototype, pDexFile, pMethodId); 2081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->shorty = dexProtoGetShorty(&meth->prototype); 2082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags = pDexMethod->accessFlags; 2083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->clazz = clazz; 2084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->jniArgInfo = 0; 2085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareNameDescriptorAndMethod("finalize", "()V", meth) == 0) { 2087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexCode = dexGetCode(pDexFile, pDexMethod); 2091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDexCode != NULL) { 2092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* integer constants, copy over for faster access */ 2093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->registersSize = pDexCode->registersSize; 2094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->insSize = pDexCode->insSize; 2095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->outsSize = pDexCode->outsSize; 2096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* pointer to code area */ 2098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->insns = pDexCode->insns; 2099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't have a DexCode block, but we still want to know how 2102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * much space is needed for the arguments (so we don't have to 2103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compute it later). We also take this opportunity to compute 2104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * JNI argument info. 2105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We do this for abstract methods as well, because we want to 2107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be able to substitute our exception-throwing "stub" in. 2108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int argsSize = dvmComputeMethodArgsSize(meth); 2110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsStaticMethod(meth)) 2111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project argsSize++; 2112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->registersSize = meth->insSize = argsSize; 2113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->outsSize == 0); 2114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->insns == NULL); 2115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsNativeMethod(meth)) { 2117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc = dvmResolveNativeMethod; 2118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->jniArgInfo = computeJniArgInfo(&meth->prototype); 2119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 212396516932f1557d8f48a8b2dbbb885af01a11ef6eAndy McFadden#if 0 /* replaced with private/read-write mapping */ 2124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2125b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * We usually map bytecode directly out of the DEX file, which is mapped 2126b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * shared read-only. If we want to be able to modify it, we have to make 2127b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * a new copy. 2128b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * 2129b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * Once copied, the code will be in the LinearAlloc region, which may be 2130b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * marked read-only. 2131b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * 2132b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * The bytecode instructions are embedded inside a DexCode structure, so we 2133b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * need to copy all of that. (The dvmGetMethodCode function backs up the 2134b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * instruction pointer to find the start of the DexCode.) 2135b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden */ 2136b51ea11c70602918c42764bfafe92a997d3b1803Andy McFaddenvoid dvmMakeCodeReadWrite(Method* meth) 2137b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden{ 2138b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* methodDexCode = (DexCode*) dvmGetMethodCode(meth); 2139b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2140b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden if (IS_METHOD_FLAG_SET(meth, METHOD_ISWRITABLE)) { 2141b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadWrite(meth->clazz->classLoader, methodDexCode); 2142b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden return; 2143b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden } 2144b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2145b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden assert(!dvmIsNativeMethod(meth) && !dvmIsAbstractMethod(meth)); 2146b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2147b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden size_t dexCodeSize = dexGetDexCodeSize(methodDexCode); 2148b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden LOGD("Making a copy of %s.%s code (%d bytes)\n", 2149b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden meth->clazz->descriptor, meth->name, dexCodeSize); 2150b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2151b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* newCode = 2152b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden (DexCode*) dvmLinearAlloc(meth->clazz->classLoader, dexCodeSize); 2153b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden memcpy(newCode, methodDexCode, dexCodeSize); 2154b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2155b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden meth->insns = newCode->insns; 2156b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden SET_METHOD_FLAG(meth, METHOD_ISWRITABLE); 2157b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden} 2158b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2159b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden/* 2160b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * Mark the bytecode read-only. 2161b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * 2162b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * If the contents of the DexCode haven't actually changed, we could revert 2163b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * to the original shared page. 2164b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden */ 2165b51ea11c70602918c42764bfafe92a997d3b1803Andy McFaddenvoid dvmMakeCodeReadOnly(Method* meth) 2166b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden{ 2167b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* methodDexCode = (DexCode*) dvmGetMethodCode(meth); 2168b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden LOGV("+++ marking %p read-only\n", methodDexCode); 2169b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadOnly(meth->clazz->classLoader, methodDexCode); 2170b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden} 217196516932f1557d8f48a8b2dbbb885af01a11ef6eAndy McFadden#endif 2172b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2173b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2174b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden/* 2175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * jniArgInfo (32-bit int) layout: 2176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * SRRRHHHH HHHHHHHH HHHHHHHH HHHHHHHH 2177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * S - if set, do things the hard way (scan the signature) 2179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * R - return-type enumeration 2180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * H - target-specific hints 2181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This info is used at invocation time by dvmPlatformInvoke. In most 2183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * cases, the target-specific hints allow dvmPlatformInvoke to avoid 2184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * having to fully parse the signature. 2185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The return-type bits are always set, even if target-specific hint bits 2187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * are unavailable. 2188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int computeJniArgInfo(const DexProto* proto) 2190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* sig = dexProtoGetShorty(proto); 2192e3c01dac83e6eea7f82fe81ed89cfbdd9791dbc9Carl Shapiro int returnType, jniArgInfo; 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 * 2436c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * If clazz->status is CLASS_IDX, then clazz->super and interfaces[] are 2437c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * holding class reference indices rather than pointers. The class 2438c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * references will be resolved during link. (This is done when 2439c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * loading from DEX to avoid having to create additional storage to 2440c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * pass 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 */ 2444c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayesbool dvmLinkClass(ClassObject* clazz) 2445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 superclassIdx = 0; 2447c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes u4 *interfaceIdxArray = NULL; 2448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool okay = false; 2449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2451c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz != NULL); 2452c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz->descriptor != NULL); 2453c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz->status == CLASS_IDX || clazz->status == CLASS_LOADED); 2454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) 2455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: linking '%s'...\n", clazz->descriptor); 2456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2457c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(gDvm.classJavaLangClass != NULL); 2458c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz->obj.clazz == gDvm.classJavaLangClass); 2459c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->classLoader == NULL && 2460c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes (strcmp(clazz->descriptor, "Ljava/lang/Class;") == 0)) 2461c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes { 2462c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (gDvm.classJavaLangClass->ifieldCount > CLASS_FIELD_SLOTS) { 2463c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGE("java.lang.Class has %d instance fields (expected at most %d)", 2464c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes gDvm.classJavaLangClass->ifieldCount, CLASS_FIELD_SLOTS); 2465c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmAbort(); 2466c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2467c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (gDvm.classJavaLangClass->sfieldCount != CLASS_SFIELD_SLOTS) { 2468c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGE("java.lang.Class has %d static fields (expected %d)", 2469c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes gDvm.classJavaLangClass->sfieldCount, CLASS_SFIELD_SLOTS); 2470c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmAbort(); 2471c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2472c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* "Resolve" the class. 2474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2475c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * At this point, clazz's reference fields may contain Dex file 2476c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * indices instead of direct object references. Proxy objects are 2477c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * an exception, and may be the only exception. We need to 2478c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * translate those indices into real references, and let the GC 2479c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * look inside this ClassObject. 2480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2481c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->status == CLASS_IDX) { 2482c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->interfaceCount > 0) { 2483c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* Copy u4 DEX idx values out of the ClassObject* array 2484c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * where we stashed them. 2485c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes */ 2486c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(sizeof(*interfaceIdxArray) == sizeof(*clazz->interfaces)); 2487c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes size_t len = clazz->interfaceCount * sizeof(*interfaceIdxArray); 2488c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes interfaceIdxArray = malloc(len); 2489c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (interfaceIdxArray == NULL) { 2490c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGW("Unable to allocate memory to link %s", clazz->descriptor); 2491c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes goto bail; 24923595a09a6fff5483f69f0f714128646c17a03216Barry Hayes } 2493c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes memcpy(interfaceIdxArray, clazz->interfaces, len); 24941145f22c92b0fb2c3bfc4de2d0d38bd54046127cAndy McFadden 24951145f22c92b0fb2c3bfc4de2d0d38bd54046127cAndy McFadden dvmLinearReadWrite(clazz->classLoader, clazz->interfaces); 2496c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes memset(clazz->interfaces, 0, len); 24971145f22c92b0fb2c3bfc4de2d0d38bd54046127cAndy McFadden dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2498c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2499c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 2500c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(sizeof(superclassIdx) == sizeof(clazz->super)); 2501c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes superclassIdx = (u4) clazz->super; 2502c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->super = NULL; 2503c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* After this line, clazz will be fair game for the GC. The 2504c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * superclass and interfaces are all NULL. 2505c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes */ 2506c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->status = CLASS_LOADED; 2507c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 2508c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (superclassIdx != kDexNoIndex) { 2509c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->super = dvmResolveClass(clazz, superclassIdx, false); 2510c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->super == NULL) { 2511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 2512c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (gDvm.optimizing) { 2513c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* happens with "external" libs */ 2514c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGV("Unable to resolve superclass of %s (%d)\n", 2515c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->descriptor, superclassIdx); 2516c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } else { 2517c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGW("Unable to resolve superclass of %s (%d)\n", 2518c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->descriptor, superclassIdx); 2519c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2524c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->interfaceCount > 0) { 2525c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* Resolve the interfaces implemented directly by this class. */ 2526c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(interfaceIdxArray != NULL); 2527c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmLinearReadWrite(clazz->classLoader, clazz->interfaces); 2528c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes for (i = 0; i < clazz->interfaceCount; i++) { 2529c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(interfaceIdxArray[i] != kDexNoIndex); 2530c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->interfaces[i] = 2531c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmResolveClass(clazz, interfaceIdxArray[i], false); 2532c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->interfaces[i] == NULL) { 2533c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes const DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2534c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 2535c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(dvmCheckException(dvmThreadSelf())); 2536c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2537c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 2538c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes const char* classDescriptor; 2539c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes classDescriptor = 2540c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dexStringByTypeIdx(pDexFile, interfaceIdxArray[i]); 2541c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (gDvm.optimizing) { 2542c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* happens with "external" libs */ 2543c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGV("Failed resolving %s interface %d '%s'\n", 2544c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->descriptor, interfaceIdxArray[i], 2545c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes classDescriptor); 2546c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } else { 2547c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGI("Failed resolving %s interface %d '%s'\n", 2548c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->descriptor, interfaceIdxArray[i], 2549c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes classDescriptor); 2550c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2551c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes goto bail; 2552c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2553c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 2554c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* are we allowed to implement this interface? */ 2555c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (!dvmCheckClassAccess(clazz, clazz->interfaces[i])) { 2556c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2557c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGW("Interface '%s' is not accessible to '%s'\n", 2558c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->interfaces[i]->descriptor, clazz->descriptor); 2559c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmThrowException("Ljava/lang/IllegalAccessError;", 2560c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes "interface not accessible"); 2561c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes goto bail; 2562c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2563c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGVV("+++ found interface '%s'\n", 2564c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->interfaces[i]->descriptor); 2565c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2566c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2567c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2568c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2570c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * There are now Class references visible to the GC in super and 2571c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * interfaces. 2572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2575c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * All classes have a direct superclass, except for 2576c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * java/lang/Object and primitive classes. Primitive classes are 2577c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * are created CLASS_INITIALIZED, so won't get here. 2578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2579c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz->primitiveType == PRIM_NOT); 2580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, "Ljava/lang/Object;") == 0) { 2581c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->super != NULL) { 2582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* TODO: is this invariant true for all java/lang/Objects, 2583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * regardless of the class loader? For now, assume it is. 2584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/ClassFormatError;", 2586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "java.lang.Object has a superclass"); 2587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Don't finalize objects whose classes use the 2591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * default (empty) Object.finalize(). 2592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLEAR_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2595c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->super == NULL) { 2596c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmThrowException("Ljava/lang/LinkageError;", 2597c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes "no superclass defined"); 2598c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes goto bail; 2599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* verify */ 2601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsFinalClass(clazz->super)) { 2602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' is final '%s'\n", 2603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IncompatibleClassChangeError;", 2605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass is final"); 2606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (dvmIsInterfaceClass(clazz->super)) { 2608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' is interface '%s'\n", 2609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IncompatibleClassChangeError;", 2611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass is an interface"); 2612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (!dvmCheckClassAccess(clazz, clazz->super)) { 2614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' (%s) is not accessible\n", 2615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IllegalAccessError;", 2617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass not accessible"); 2618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Inherit finalizability from the superclass. If this 2622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class also overrides finalize(), its CLASS_ISFINALIZABLE 2623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bit will already be set. 2624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz->super, CLASS_ISFINALIZABLE)) { 2626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* See if this class descends from java.lang.Reference 2630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and set the class flags appropriately. 2631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz->super, CLASS_ISREFERENCE)) { 2633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 superRefFlags; 2634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We've already determined the reference type of this 2636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * inheritance chain. Inherit reference-ness from the superclass. 2637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superRefFlags = GET_CLASS_FLAG_GROUP(clazz->super, 2639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISREFERENCE | 2640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISWEAKREFERENCE | 2641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISPHANTOMREFERENCE); 2642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, superRefFlags); 2643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (clazz->classLoader == NULL && 2644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super->classLoader == NULL && 2645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project strcmp(clazz->super->descriptor, 2646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/Reference;") == 0) 2647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 refFlags; 2649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This class extends Reference, which means it should 2651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be one of the magic Soft/Weak/PhantomReference classes. 2652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags = CLASS_ISREFERENCE; 2654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, 2655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/SoftReference;") == 0) 2656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Only CLASS_ISREFERENCE is set for soft references. 2658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (strcmp(clazz->descriptor, 2660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/WeakReference;") == 0) 2661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags |= CLASS_ISWEAKREFERENCE; 2663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (strcmp(clazz->descriptor, 2664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/PhantomReference;") == 0) 2665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags |= CLASS_ISPHANTOMREFERENCE; 2667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* No-one else is allowed to inherit directly 2669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * from Reference. 2670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project//xxx is this the right exception? better than an assertion. 2672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 2673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "illegal inheritance from Reference"); 2674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* The class should not have any reference bits set yet. 2678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(GET_CLASS_FLAG_GROUP(clazz, 2680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISREFERENCE | 2681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISWEAKREFERENCE | 2682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISPHANTOMREFERENCE) == 0); 2683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, refFlags); 2685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Populate vtable. 2690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz)) { 2692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* no vtable; just set the method indices */ 2693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = clazz->virtualMethodCount; 2694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (count != (u2) count) { 2696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in interface '%s'\n", count, 2697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 2702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) 2704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].methodIndex = (u2) i; 2705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 2707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!createVtable(clazz)) { 2709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("failed creating vtable\n"); 2710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Populate interface method tables. Can alter the vtable. 2716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!createIftable(clazz)) 2718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Insert special-purpose "stub" method implementations. 2722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!insertMethodStubs(clazz)) 2724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compute instance field offsets and, hence, the size of the object. 2728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!computeFieldOffsets(clazz)) 2730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache fields and methods from java/lang/ref/Reference and 2734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java/lang/Class. This has to happen after computeFieldOffsets(). 2735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->classLoader == NULL) { 2737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, "Ljava/lang/ref/Reference;") == 0) { 2738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!precacheReferenceOffsets(clazz)) { 2739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("failed pre-caching Reference offsets\n"); 2740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/InternalError;", NULL); 2741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (clazz == gDvm.classJavaLangClass) { 2744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangClass_pd = dvmFindFieldOffset(clazz, "pd", 2745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/security/ProtectionDomain;"); 2746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.offJavaLangClass_pd <= 0) { 2747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: unable to find 'pd' field in Class\n"); 2748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); /* we're not going to get much farther */ 2749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 27546daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * Compact the offsets the GC has to examine into a bitmap, if 27556daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * possible. (This has to happen after Reference.referent is 27566daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * massaged in precacheReferenceOffsets.) 27576daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes */ 27586daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes computeRefOffsets(clazz); 27596daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes 27606daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes /* 2761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Done! 2762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz, CLASS_ISPREVERIFIED)) 2764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFIED; 2765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 2766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_RESOLVED; 2767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project okay = true; 2768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) 2769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: linked '%s'\n", clazz->descriptor); 2770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We send CLASS_PREPARE events to the debugger from here. The 2773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * definition of "preparation" is creating the static fields for a 2774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class and initializing them to the standard default values, but not 2775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * executing any code (that comes later, during "initialization"). 2776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We did the static prep in loadSFieldFromDex() while loading the class. 2778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class has been prepared and resolved but possibly not yet verified 2780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * at this point. 2781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.debuggerActive) { 2783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDbgPostClassPrepare(clazz); 2784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 2787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!okay) { 2788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 2789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmCheckException(dvmThreadSelf())) { 2790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/VirtualMachineError;", NULL); 2791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2793c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (interfaceIdxArray != NULL) { 2794c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes free(interfaceIdxArray); 2795c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return okay; 2797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create the virtual method table. 2801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The top part of the table is a copy of the table from our superclass, 2803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with our local methods overriding theirs. The bottom part of the table 2804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has any new methods we defined. 2805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createVtable(ClassObject* clazz) 2807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool result = false; 2809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int maxCount; 2810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("SUPER METHODS %d %s->%s\n", clazz->super->vtableCount, 2814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->super->descriptor); 2815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* the virtual methods we define, plus the superclass vtable size */ 2818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount = clazz->virtualMethodCount; 2819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount += clazz->super->vtableCount; 2821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* TODO: is this invariant true for all java/lang/Objects, 2823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * regardless of the class loader? For now, assume it is. 2824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(strcmp(clazz->descriptor, "Ljava/lang/Object;") == 0); 2826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGD("+++ max vmethods for '%s' is %d\n", clazz->descriptor, maxCount); 2828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Over-allocate the table, then realloc it down if necessary. So 2831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * long as we don't allocate anything in between we won't cause 2832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fragmentation, and reducing the size should be unlikely to cause 2833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a buffer copy. 2834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 2836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = (Method**) dvmLinearAlloc(clazz->classLoader, 2837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method*) * maxCount); 2838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) 2839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int actualCount; 2843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(clazz->vtable, clazz->super->vtable, 2845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(*(clazz->vtable)) * clazz->super->vtableCount); 2846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project actualCount = clazz->super->vtableCount; 2847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See if any of our virtual methods override the superclass. 2850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++) { 2852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* localMeth = &clazz->virtualMethods[i]; 2853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int si; 2854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (si = 0; si < clazz->super->vtableCount; si++) { 2856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* superMeth = clazz->vtable[si]; 2857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos(localMeth, superMeth) == 0) 2859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* verify */ 2861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsFinalMethod(superMeth)) { 2862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method %s.%s overrides final %s.%s\n", 2863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->clazz->descriptor, localMeth->name, 2864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superMeth->clazz->descriptor, superMeth->name); 2865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[si] = localMeth; 2868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->methodIndex = (u2) si; 2869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ override %s.%s (slot %d)\n", 2870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, localMeth->name, si); 2871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (si == clazz->super->vtableCount) { 2876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* not an override, add to end */ 2877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[actualCount] = localMeth; 2878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->methodIndex = (u2) actualCount; 2879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project actualCount++; 2880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ add method %s.%s\n", 2882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, localMeth->name); 2883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (actualCount != (u2) actualCount) { 2887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in class '%s'\n", actualCount, 2888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(actualCount <= maxCount); 2893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (actualCount < maxCount) { 2895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtable != NULL); 2896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 2897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = dvmLinearRealloc(clazz->classLoader, clazz->vtable, 2898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(*(clazz->vtable)) * actualCount); 2899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) { 2900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("vtable realloc failed\n"); 2901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("+++ reduced vtable from %d to %d\n", 2904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount, actualCount); 2905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = actualCount; 2909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* java/lang/Object case */ 2911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = clazz->virtualMethodCount; 2912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (count != (u2) count) { 2913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in base class '%s'\n", count, 2914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 2919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[i] = &clazz->virtualMethods[i]; 2920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].methodIndex = (u2) i; 2921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = clazz->virtualMethodCount; 2923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 2926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 2928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 2929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 2930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 2931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create and populate "iftable". 2935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The set of interfaces we support is the combination of the interfaces 2937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we implement directly and those implemented by our superclass. Each 2938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interface can have one or more "superinterfaces", which we must also 2939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * support. For speed we flatten the tree out. 2940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We might be able to speed this up when there are lots of interfaces 2942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by merge-sorting the class pointers and binary-searching when removing 2943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * duplicates. We could also drop the duplicate removal -- it's only 2944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * there to reduce the memory footprint. 2945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because of "Miranda methods", this may reallocate clazz->virtualMethods. 2947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" on success. 2949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createIftable(ClassObject* clazz) 2951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool result = false; 2953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapIftable = false; 2954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapVtable = false; 2955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapIfvipool = false; 2956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int ifCount, superIfCount, idx; 2957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) 2960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superIfCount = clazz->super->iftableCount; 2961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 2962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superIfCount = 0; 2963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount = superIfCount; 2965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount += clazz->interfaceCount; 2966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->interfaceCount; i++) 2967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount += clazz->interfaces[i]->iftableCount; 2968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: class '%s' direct w/supra=%d super=%d total=%d\n", 2970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, ifCount - superIfCount, superIfCount, ifCount); 2971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (ifCount == 0) { 2973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->iftableCount == 0); 2974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->iftable == NULL); 2975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 2976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create a table with enough space for all interfaces, and copy the 2981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass' table in. 2982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable = (InterfaceEntry*) dvmLinearAlloc(clazz->classLoader, 2984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(InterfaceEntry) * ifCount); 2985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapIftable = true; 2986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memset(clazz->iftable, 0x00, sizeof(InterfaceEntry) * ifCount); 2987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (superIfCount != 0) { 2988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(clazz->iftable, clazz->super->iftable, 2989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(InterfaceEntry) * superIfCount); 2990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create a flattened interface hierarchy of our immediate interfaces. 2994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx = superIfCount; 2996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->interfaceCount; i++) { 2998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* interf; 2999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 3000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project interf = clazz->interfaces[i]; 3002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(interf != NULL); 3003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* make sure this is still an interface class */ 3005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(interf)) { 3006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Class '%s' implements non-interface '%s'\n", 3007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, interf->descriptor); 3008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage( 3009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/IncompatibleClassChangeError;", 3010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* add entry for this interface */ 3015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[idx++].clazz = interf; 3016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* add entries for the interface's superinterfaces */ 3018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < interf->iftableCount; j++) { 3019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[idx++].clazz = interf->iftable[j].clazz; 3020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(idx == ifCount); 3024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false) { 3026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Remove anything redundant from our recent additions. Note we have 3028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to traverse the recent adds when looking for duplicates, because 3029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it's possible the recent additions are self-redundant. This 3030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * reduces the memory footprint of classes with lots of inherited 3031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interfaces. 3032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (I don't know if this will cause problems later on when we're trying 3034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to find a static field. It looks like the proper search order is 3035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (1) current class, (2) interfaces implemented by current class, 3036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (3) repeat with superclass. A field implemented by an interface 3037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and by a superclass might come out wrong if the superclass also 3038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implements the interface. The javac compiler will reject the 3039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * situation as ambiguous, so the concern is somewhat artificial.) 3040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * UPDATE: this makes ReferenceType.Interfaces difficult to implement, 3042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because it wants to return just the interfaces declared to be 3043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implemented directly by the class. I'm excluding this code for now. 3044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 3046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 3047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < ifCount; j++) { 3049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i == j) 3050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project continue; 3051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->iftable[i].clazz == clazz->iftable[j].clazz) { 3052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: redundant interface %s in %s\n", 3053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->descriptor, 3054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != ifCount-1) 3057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memmove(&clazz->iftable[i], &clazz->iftable[i+1], 3058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (ifCount - i -1) * sizeof(InterfaceEntry)); 3059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount--; 3060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i--; // adjust for i++ above 3061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: class '%s' nodupes=%d\n", clazz->descriptor, ifCount); 3066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } // if (false) 3067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftableCount = ifCount; 3069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we're an interface, we don't need the vtable pointers, so 3072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we're done. If this class doesn't implement an interface that our 3073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass doesn't have, then we again have nothing to do. 3074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz) || superIfCount == ifCount) { 3076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmDumpClass(clazz, kDumpClassFullDetail); 3077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * When we're handling invokeinterface, we probably have an object 3083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * whose type is an interface class rather than a concrete class. We 3084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * need to convert the method reference into a vtable index. So, for 3085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * every entry in "iftable", we create a list of vtable indices. 3086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because our vtable encompasses the superclass vtable, we can use 3088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the vtable indices from our superclass for all of the interfaces 3089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that weren't directly implemented by us. 3090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Each entry in "iftable" has a pointer to the start of its set of 3092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * vtable offsets. The iftable entries in the superclass point to 3093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * storage allocated in the superclass, and the iftable entries added 3094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for this class point to storage allocated in this class. "iftable" 3095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * is flat for fast access in a class and all of its subclasses, but 3096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "ifviPool" is only created for the topmost implementor. 3097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int poolSize = 0; 3099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 3100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note it's valid for an interface to have no methods (e.g. 3102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java/io/Serializable). 3103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: pool: %d from %s\n", 3105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->virtualMethodCount, 3106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->descriptor); 3107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolSize += clazz->iftable[i].clazz->virtualMethodCount; 3108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (poolSize == 0) { 3111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: didn't find any new interfaces with methods\n"); 3112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPoolCount = poolSize; 3117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPool = (int*) dvmLinearAlloc(clazz->classLoader, 3118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolSize * sizeof(int*)); 3119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapIfvipool = true; 3120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Fill in the vtable offsets for the interfaces that weren't part of 3123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our superclass. 3124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int poolOffset = 0; 3126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method** mirandaList = NULL; 3127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int mirandaCount = 0, mirandaAlloc = 0; 3128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 3130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* interface; 3131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int methIdx; 3132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray = clazz->ifviPool + poolOffset; 3134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project interface = clazz->iftable[i].clazz; 3135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolOffset += interface->virtualMethodCount; // end here 3136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For each method listed in the interface's method list, find the 3139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * matching method in our class's method list. We want to favor the 3140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * subclass over the superclass, which just requires walking 3141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * back from the end of the vtable. (This only matters if the 3142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass defines a private method and this class redefines 3143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it -- otherwise it would use the same vtable slot. In Dalvik 3144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * those don't end up in the virtual method table, so it shouldn't 3145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * matter which direction we go. We walk it backward anyway.) 3146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Suppose we have the following arrangement: 3149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public interface MyInterface 3150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inInterface(); 3151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public abstract class MirandaAbstract implements MirandaInterface 3152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * //public abstract boolean inInterface(); // not declared! 3153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inAbstract() { stuff } // in vtable 3154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public class MirandClass extends MirandaAbstract 3155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inInterface() { stuff } 3156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inAbstract() { stuff } // in vtable 3157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The javac compiler happily compiles MirandaAbstract even though 3159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it doesn't declare all methods from its interface. When we try 3160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to set up a vtable for MirandaAbstract, we find that we don't 3161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have an slot for inInterface. To prevent this, we synthesize 3162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * abstract method declarations in MirandaAbstract. 3163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We have to expand vtable and update some things that point at it, 3165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * so we accumulate the method list and do it all at once below. 3166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (methIdx = 0; methIdx < interface->virtualMethodCount; methIdx++) { 3168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* imeth = &interface->virtualMethods[methIdx]; 3169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 3170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGVV() { 3172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = dexProtoCopyMethodDescriptor(&imeth->prototype); 3173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: matching '%s' '%s'\n", imeth->name, desc); 3174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = clazz->vtableCount-1; j >= 0; j--) { 3178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos(imeth, clazz->vtable[j]) 3179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project == 0) 3180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 3181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: matched at %d\n", j); 3182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsPublicMethod(clazz->vtable[j])) { 3183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Implementation of %s.%s is not public\n", 3184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->vtable[j]->name); 3185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IllegalAccessError;", 3186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "interface implementation not public"); 3187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray[methIdx] = j; 3190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (j < 0) { 3194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGV() { 3195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = 3196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexProtoCopyMethodDescriptor(&imeth->prototype); 3197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("No match for '%s' '%s' in '%s' (creating miranda)\n", 3198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, desc, clazz->descriptor); 3199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmThrowException("Ljava/lang/RuntimeException;", "Miranda!"); 3202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //return false; 3203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaCount == mirandaAlloc) { 3205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaAlloc += 8; 3206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaList == NULL) { 3207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList = dvmLinearAlloc(clazz->classLoader, 3208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaAlloc * sizeof(Method*)); 3209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, mirandaList); 3211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList = dvmLinearRealloc(clazz->classLoader, 3212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList, mirandaAlloc * sizeof(Method*)); 3213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(mirandaList != NULL); // mem failed + we leaked 3215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * These may be redundant (e.g. method with same name and 3219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * signature declared in two interfaces implemented by the 3220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * same abstract class). We can squeeze the duplicates 3221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * out here. 3222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int mir; 3224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (mir = 0; mir < mirandaCount; mir++) { 3225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos( 3226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mir], imeth) == 0) 3227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 3228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGVV() { 3229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = dexProtoCopyMethodDescriptor( 3230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &imeth->prototype); 3231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA dupe: %s and %s %s%s\n", 3232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mir]->clazz->descriptor, 3233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->clazz->descriptor, 3234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, desc); 3235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* point the iftable at a phantom slot index */ 3242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray[methIdx] = 3243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount + mir; 3244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA: %s points at slot %d\n", 3245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, clazz->vtableCount + mir); 3246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* if non-duplicate among Mirandas, add to Miranda list */ 3248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mir == mirandaCount) { 3249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("MIRANDA: holding '%s' in slot %d\n", 3250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // imeth->name, mir); 3251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mirandaCount++] = imeth; 3252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaCount != 0) { 325868825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden static const int kManyMirandas = 150; /* arbitrary */ 3259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* newVirtualMethods; 3260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth; 3261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int oldMethodCount, oldVtableCount; 3262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < mirandaCount; i++) { 3264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA %d: %s.%s\n", i, 3265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[i]->clazz->descriptor, mirandaList[i]->name); 3266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 326768825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden if (mirandaCount > kManyMirandas) { 326868825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden /* 326968825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * Some obfuscators like to create an interface with a huge 327068825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * pile of methods, declare classes as implementing it, and then 327168825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * only define a couple of methods. This leads to a rather 327268825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * massive collection of Miranda methods and a lot of wasted 327368825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * space, sometimes enough to blow out the LinearAlloc cap. 327468825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden */ 327568825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden LOGD("Note: class %s has %d unimplemented (abstract) methods\n", 327668825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden clazz->descriptor, mirandaCount); 327768825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden } 3278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We found methods in one or more interfaces for which we do not 3281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have vtable entries. We have to expand our virtualMethods 3282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * table (which might be empty) to hold some new entries. 3283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->virtualMethods == NULL) { 3285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newVirtualMethods = (Method*) dvmLinearAlloc(clazz->classLoader, 3286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method) * (clazz->virtualMethodCount + mirandaCount)); 3287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newVirtualMethods = (Method*) dvmLinearRealloc(clazz->classLoader, 3290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods, 3291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method) * (clazz->virtualMethodCount + mirandaCount)); 3292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newVirtualMethods != clazz->virtualMethods) { 3294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Table was moved in memory. We have to run through the 3296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * vtable and fix the pointers. The vtable entries might be 3297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pointing at superclasses, so we flip it around: run through 3298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * all locally-defined virtual methods, and fix their entries 3299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in the vtable. (This would get really messy if sub-classes 3300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * had already been loaded.) 3301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Reminder: clazz->virtualMethods and clazz->virtualMethodCount 3303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * hold the virtual methods declared by this class. The 3304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method's methodIndex is the vtable index, and is the same 3305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for all sub-classes (and all super classes in which it is 3306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * defined). We're messing with these because the Miranda 3307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stuff makes it look like the class actually has an abstract 3308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method declaration in it. 3309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA fixing vtable pointers\n"); 3311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->vtable); 3312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth = newVirtualMethods; 3313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++, meth++) 3314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[meth->methodIndex] = meth; 3315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 3316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldMethodCount = clazz->virtualMethodCount; 3319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods = newVirtualMethods; 3320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount += mirandaCount; 3321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We also have to expand the vtable. 3326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtable != NULL); 3328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = (Method**) dvmLinearRealloc(clazz->classLoader, 3329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable, 3330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method*) * (clazz->vtableCount + mirandaCount)); 3331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) { 3332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 3333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapVtable = true; 3336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldVtableCount = clazz->vtableCount; 3338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount += mirandaCount; 3339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Now we need to create the fake methods. We clone the abstract 3342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method definition from the interface and then replace a few 3343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * things. 334468825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * 334568825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * The Method will be an "abstract native", with nativeFunc set to 334668825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * dvmAbstractMethodStub(). 3347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->virtualMethods + oldMethodCount; 3349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < mirandaCount; i++, meth++) { 3350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 3351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cloneMethod(meth, mirandaList[i]); 3352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->clazz = clazz; 3353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags |= ACC_MIRANDA; 3354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->methodIndex = (u2) (oldVtableCount + i); 3355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* point the new vtable entry at the new method */ 3358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[oldVtableCount + i] = meth; 3359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, mirandaList); 3362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, mirandaList); 3363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO? 3368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Sort the interfaces by number of declared methods. All we really 3369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * want is to get the interfaces with zero methods at the end of the 3370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * list, so that when we walk through the list during invoke-interface 3371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we don't examine interfaces that can't possibly be useful. 3372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The set will usually be small, so a simple insertion sort works. 3374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We have to be careful not to change the order of two interfaces 3376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that define the same method. (Not a problem if we only move the 3377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * zero-method interfaces to the end.) 3378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * PROBLEM: 3380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we do this, we will no longer be able to identify super vs. 3381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * current class interfaces by comparing clazz->super->iftableCount. This 3382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * breaks anything that only wants to find interfaces declared directly 3383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by the class (dvmFindStaticFieldHier, ReferenceType.Interfaces, 3384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmDbgOutputAllInterfaces, etc). Need to provide a workaround. 3385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can sort just the interfaces implemented directly by this class, 3387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but that doesn't seem like it would provide much of an advantage. I'm 3388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not sure this is worthwhile. 3389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This has been made largely obsolete by the interface cache mechanism.) 3391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmDumpClass(clazz); 3394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 3398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapIftable) 3399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->iftable); 3400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapVtable) 3401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 3402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapIfvipool) 3403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifviPool); 3404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 3405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Provide "stub" implementations for methods without them. 3410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Currently we provide an implementation for all abstract methods that 3412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * throws an AbstractMethodError exception. This allows us to avoid an 3413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * explicit check for abstract methods in every virtual call. 3414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: for Miranda methods, the method declaration is a clone of what 3416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * was found in the interface class. That copy may already have had the 3417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * function pointer filled in, so don't be surprised if it's not NULL. 3418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: this sets the "native" flag, giving us an "abstract native" method, 3420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * which is nonsensical. Need to make sure that this doesn't escape the 3421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * VM. We can either mask it out in reflection calls, or copy "native" 3422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * into the high 16 bits of accessFlags and check that internally. 3423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool insertMethodStubs(ClassObject* clazz) 3425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 3427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth; 3429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 3430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->virtualMethods; 3432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++, meth++) { 3433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsAbstractMethod(meth)) { 3434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->insns == NULL); 3435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->nativeFunc == NULL || 3436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc == (DalvikBridgeFunc)dvmAbstractMethodStub); 3437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags |= ACC_NATIVE; 3439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc = (DalvikBridgeFunc) dvmAbstractMethodStub; 3440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Swap two instance fields. 3450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic inline void swapField(InstField* pOne, InstField* pTwo) 3452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField swap; 3454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- swap '%s' and '%s'\n", pOne->field.name, pTwo->field.name); 3456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swap = *pOne; 3457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pOne = *pTwo; 3458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pTwo = swap; 3459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Assign instance fields to u4 slots. 3463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The top portion of the instance field area is occupied by the superclass 3465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fields, the bottom by the fields for this class. 3466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "long" and "double" fields occupy two adjacent slots. On some 3468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * architectures, 64-bit quantities must be 64-bit aligned, so we need to 3469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * arrange fields (or introduce padding) to ensure this. We assume the 3470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fields of the topmost superclass (i.e. Object) are 64-bit aligned, so 3471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we can just ensure that the offset is "even". To avoid wasting space, 3472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we want to move non-reference 32-bit fields into gaps rather than 3473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * creating pad words. 3474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In the worst case we will waste 4 bytes, but because objects are 3476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * allocated on >= 64-bit boundaries, those bytes may well be wasted anyway 3477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (assuming this is the most-derived class). 3478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pad words are not represented in the field table, so the field table 3480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * itself does not change size. 3481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The number of field slots determines the size of the object, so we 3483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * set that here too. 3484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This function feels a little more complicated than I'd like, but it 3486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has the property of moving the smallest possible set of fields, which 3487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * should reduce the time required to load a class. 3488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: reference fields *must* come first, or precacheReferenceOffsets() 3490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * will break. 3491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool computeFieldOffsets(ClassObject* clazz) 3493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int fieldOffset; 3495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i, j; 3496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->ifields); 3498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) 3500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset = clazz->super->objectSize; 3501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 3502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset = offsetof(DataObject, instanceData); 3503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- computeFieldOffsets '%s'\n", clazz->descriptor); 3505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("OFFSETS fieldCount=%d\n", clazz->ifieldCount); 3507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("dataobj, instance: %d\n", offsetof(DataObject, instanceData)); 3508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("classobj, access: %d\n", offsetof(ClassObject, accessFlags)); 3509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("super=%p, fieldOffset=%d\n", clazz->super, fieldOffset); 3510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Start by moving all reference fields to the front. 3513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount = 0; 3515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 3517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') { 3521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This isn't a reference field; see if any reference fields 3522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * follow this one. If so, we'll move it to this position. 3523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (quicksort-style partitioning) 3524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* refField = &clazz->ifields[j--]; 3527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = refField->field.signature[0]; 3528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc == '[' || rc == 'L') { 3530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Here's a reference field that follows at least one 3531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-reference field. Swap it with the current field. 3532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (When this returns, "pField" points to the reference 3533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field, and "refField" points to the non-ref field.) 3534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, refField); 3536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Fix the signature. 3538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project c = rc; 3540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount++; 3542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We may or may not have swapped a field. 3546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This is a reference field. 3549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount++; 3551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we've hit the end of the reference fields, break. 3555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') 3557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset1 '%s'=%d\n", pField->field.name,pField->byteOffset); 3562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Now we want to pack all of the double-wide fields together. If we're 3566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not aligned, though, we want to shuffle one 32-bit field into place. 3567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we can't find one, we'll have to pad it. 3568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != clazz->ifieldCount && (fieldOffset & 0x04) != 0) { 3570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" +++ not aligned\n"); 3571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != 'J' && c != 'D') { 3576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The field that comes next is 32-bit, so just advance past it. 3578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(c != '[' && c != 'L'); 3580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i++; 3583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset2 '%s'=%d\n", 3584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name, pField->byteOffset); 3585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Next field is 64-bit, so search for a 32-bit field we can 3588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * swap into it. 3589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool found = false; 3591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* singleField = &clazz->ifields[j--]; 3594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = singleField->field.signature[0]; 3595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc != 'J' && rc != 'D') { 3597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, singleField); 3598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //c = rc; 3599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" +++ swapped '%s' for alignment\n", 3600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name); 3601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset3 '%s'=%d\n", 3604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name, pField->byteOffset); 3605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = true; 3606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i++; 3607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!found) { 3611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV(" +++ inserting pad field in '%s'\n", clazz->descriptor); 3612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Alignment is good, shuffle any double-wide fields forward, and 3619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finish assigning field offsets to all fields. 3620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(i == clazz->ifieldCount || (fieldOffset & 0x04) == 0); 3622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for ( ; i < clazz->ifieldCount; i++) { 3624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != 'D' && c != 'J') { 3628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This isn't a double-wide field; see if any double fields 3629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * follow this one. If so, we'll move it to this position. 3630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (quicksort-style partitioning) 3631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* doubleField = &clazz->ifields[j--]; 3634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = doubleField->field.signature[0]; 3635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc == 'D' || rc == 'J') { 3637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Here's a double-wide field that follows at least one 3638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-double field. Swap it with the current field. 3639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (When this returns, "pField" points to the reference 3640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field, and "doubleField" points to the non-double field.) 3641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, doubleField); 3643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project c = rc; 3644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We may or may not have swapped a field. 3649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This is a double-wide field, leave it be. 3652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset4 '%s'=%d\n", pField->field.name,pField->byteOffset); 3657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c == 'J' || c == 'D') 3659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifndef NDEBUG 3663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Make sure that all reference fields appear before 3664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-reference fields, and all double-wide fields are aligned. 3665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = 0; // seen non-ref 3667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 3668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField *pField = &clazz->ifields[i]; 3669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c == 'D' || c == 'J') { 3672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((pField->byteOffset & 0x07) == 0); 3673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') { 3676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!j) { 3677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(i == clazz->ifieldRefCount); 3678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = 1; 3679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (j) { 3681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 3682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!j) { 3685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->ifieldRefCount == clazz->ifieldCount); 3686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 3688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We map a C struct directly on top of java/lang/Class objects. Make 3691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sure we left enough room for the instance fields. 3692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != gDvm.classJavaLangClass || (size_t)fieldOffset < 3694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project offsetof(ClassObject, instanceData) + sizeof(clazz->instanceData)); 3695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->objectSize = fieldOffset; 3697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifields); 3699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Throw the VM-spec-mandated error when an exception is thrown during 3704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class initialization. 3705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The safest way to do this is to call the ExceptionInInitializerError 3707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * constructor that takes a Throwable. 3708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * [Do we want to wrap it if the original is an Error rather than 3710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an Exception?] 3711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwClinitError(void) 3713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 3715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* exception; 3716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* eiie; 3717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project exception = dvmGetException(self); 3719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc(exception, self); 3720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(self); 3721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangExceptionInInitializerError == NULL) { 3723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Always resolves to same thing -- no race condition. 3725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangExceptionInInitializerError = 3727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindSystemClass( 3728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ExceptionInInitializerError;"); 3729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangExceptionInInitializerError == NULL) { 3730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to prep java/lang/ExceptionInInitializerError\n"); 3731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.methJavaLangExceptionInInitializerError_init = 3735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindDirectMethodByDescriptor(gDvm.classJavaLangExceptionInInitializerError, 3736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "<init>", "(Ljava/lang/Throwable;)V"); 3737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.methJavaLangExceptionInInitializerError_init == NULL) { 3738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to prep java/lang/ExceptionInInitializerError\n"); 3739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project eiie = dvmAllocObject(gDvm.classJavaLangExceptionInInitializerError, 3744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ALLOC_DEFAULT); 3745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (eiie == NULL) 3746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Construct the new object, and replace the exception with it. 3750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue unused; 3752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, gDvm.methJavaLangExceptionInInitializerError_init, 3753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project eiie, &unused, exception); 3754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetException(self, eiie); 3755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(eiie, NULL); 3756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(exception, self); 3757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfail: /* restore original exception */ 3760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetException(self, exception); 3761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(exception, self); 3762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class failed to initialize on a previous attempt, so we want to throw 3767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a NoClassDefFoundError (v2 2.17.5). The exception to this rule is if we 3768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * failed in verification, in which case v2 5.4.1 says we need to re-throw 3769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the previous error. 3770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwEarlierClassFailure(ClassObject* clazz) 3772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Rejecting re-init on previously-failed class %s v=%p\n", 3774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->verifyErrorClass); 3775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->verifyErrorClass == NULL) { 3777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage("Ljava/lang/NoClassDefFoundError;", 3778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionByClassWithClassMessage(clazz->verifyErrorClass, 3781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Initialize any static fields whose values are stored in 3787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the DEX file. This must be done during class initialization. 3788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void initSFields(ClassObject* clazz) 3790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); /* for dvmReleaseTrackedAlloc() */ 3792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile; 3793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 3794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexEncodedArray* pValueList; 3795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project EncodedArrayIterator iterator; 3796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 3797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->sfieldCount == 0) { 3799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->pDvmDex == NULL) { 3802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* generated class; any static fields should already be set up */ 3803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Not initializing static fields in %s\n", clazz->descriptor); 3804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = clazz->pDvmDex->pDexFile; 3807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDexFile, clazz->descriptor); 3809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pClassDef != NULL); 3810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pValueList = dexGetStaticValuesList(pDexFile, pClassDef); 3812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pValueList == NULL) { 3813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmEncodedArrayIteratorInitialize(&iterator, pValueList, clazz); 3817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Iterate over the initial values array, setting the corresponding 3820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * static field for each array element. 3821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; dvmEncodedArrayIteratorHasNext(&iterator); i++) { 3824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project AnnotationValue value; 3825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool parsed = dvmEncodedArrayIteratorGetNext(&iterator, &value); 3826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StaticField* sfield = &clazz->sfields[i]; 3827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor = sfield->field.signature; 3828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool needRelease = false; 3829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (! parsed) { 3831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: Eventually verification should attempt to ensure 3833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that this can't happen at least due to a data integrity 3834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * problem. 3835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Static initializer parse failed for %s at index %d", 3837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, i); 3838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 3839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Verify that the value we got was of a valid type. */ 3842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (descriptor[0]) { 3844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'Z': parsed = (value.type == kDexAnnotationBoolean); break; 3845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'B': parsed = (value.type == kDexAnnotationByte); break; 3846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'C': parsed = (value.type == kDexAnnotationChar); break; 3847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'S': parsed = (value.type == kDexAnnotationShort); break; 3848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'I': parsed = (value.type == kDexAnnotationInt); break; 3849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'J': parsed = (value.type == kDexAnnotationLong); break; 3850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'F': parsed = (value.type == kDexAnnotationFloat); break; 3851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'D': parsed = (value.type == kDexAnnotationDouble); break; 3852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case '[': parsed = (value.type == kDexAnnotationNull); break; 3853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'L': { 3854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (value.type) { 3855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationNull: { 3856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* No need for further tests. */ 3857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationString: { 3860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = 3861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (strcmp(descriptor, "Ljava/lang/String;") == 0); 3862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project needRelease = true; 3863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationType: { 3866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = 3867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (strcmp(descriptor, "Ljava/lang/Class;") == 0); 3868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project needRelease = true; 3869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: { 3872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = false; 3873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: { 3879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = false; 3880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (parsed) { 3885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * All's well, so store the value. Note: This always 3887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stores the full width of a JValue, even though most of 3888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the time only the first word is needed. 3889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->value = value.value; 3891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (needRelease) { 3892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(value.value.l, self); 3893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Something up above had a problem. TODO: See comment 3897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * above the switch about verfication. 3898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Bogus static initialization: value type %d in field type " 3900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "%s for %s at index %d", 3901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project value.type, descriptor, clazz->descriptor, i); 3902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 3903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Determine whether "descriptor" yields the same class object in the 3910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * context of clazz1 and clazz2. 3911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller must hold gDvm.loadedClasses. 3913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if they match. 3915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool compareDescriptorClasses(const char* descriptor, 3917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz1, const ClassObject* clazz2) 3918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result1; 3920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result2; 3921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Do the first lookup by name. 3924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result1 = dvmFindClassNoInit(descriptor, clazz1->classLoader); 3926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can skip a second lookup by name if the second class loader is 3929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in the initiating loader list of the class object we retrieved. 3930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This means that somebody already did a lookup of this class through 3931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the second loader, and it resolved to the same class.) If it's not 3932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * there, we may simply not have had an opportunity to add it yet, so 3933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we do the full lookup. 3934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The initiating loader test should catch the majority of cases 3936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (in particular, the zillions of references to String/Object). 3937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unfortunately we're still stuck grabbing a mutex to do the lookup. 3939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For this to work, the superclass/interface should be the first 3941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * argument, so that way if it's from the bootstrap loader this test 3942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * will work. (The bootstrap loader, by definition, never shows up 3943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * as the initiating loader of a class defined by some other loader.) 3944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 3946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool isInit = dvmLoaderInInitiatingList(result1, clazz2->classLoader); 3947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 3948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (isInit) { 3950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("%s(obj=%p) / %s(cl=%p): initiating\n", 3951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // result1->descriptor, result1, 3952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz2->descriptor, clazz2->classLoader); 3953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("%s(obj=%p) / %s(cl=%p): RAW\n", 3956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // result1->descriptor, result1, 3957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz2->descriptor, clazz2->classLoader); 3958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result2 = dvmFindClassNoInit(descriptor, clazz2->classLoader); 3959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result1 == NULL || result2 == NULL) { 3962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(dvmThreadSelf()); 3963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result1 == result2) { 3964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Neither class loader could find this class. Apparently it 3966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * doesn't exist. 3967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can either throw some sort of exception now, or just 3969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * assume that it'll fail later when something actually tries 3970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to use the class. For strict handling we should throw now, 3971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because a "tricky" class loader could start returning 3972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * something later, and a pair of "tricky" loaders could set 3973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * us up for confusion. 3974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm not sure if we're allowed to complain about nonexistent 3976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * classes in method signatures during class init, so for now 3977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this will just return "true" and let nature take its course. 3978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* only one was found, so clearly they're not the same */ 3982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 3983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result1 == result2; 3987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For every component in the method descriptor, resolve the class in the 3991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * context of the two classes and compare the results. 3992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For best results, the "superclass" class should be first. 3994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if the classes match, "false" otherwise. 3996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool checkMethodDescriptorClasses(const Method* meth, 3998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz1, const ClassObject* clazz2) 3999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexParameterIterator iterator; 4001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 4002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* walk through the list of parameters */ 4004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexParameterIteratorInit(&iterator, &meth->prototype); 4005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (true) { 4006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexParameterIteratorNextDescriptor(&iterator); 4007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor == NULL) 4009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 4010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor[0] == 'L' || descriptor[0] == '[') { 4012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* non-primitive type */ 4013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!compareDescriptorClasses(descriptor, clazz1, clazz2)) 4014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* check the return type */ 4019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexProtoGetReturnType(&meth->prototype); 4020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor[0] == 'L' || descriptor[0] == '[') { 4021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!compareDescriptorClasses(descriptor, clazz1, clazz2)) 4022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 4025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Validate the descriptors in the superclass and interfaces. 4029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * What we need to do is ensure that the classes named in the method 4031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptors in our ancestors and ourselves resolve to the same class 4032cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * objects. We can get conflicts when the classes come from different 4033cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * class loaders, and the resolver comes up with different results for 4034cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * the same class name in different contexts. 4035cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * 4036cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * An easy way to cause the problem is to declare a base class that uses 4037cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * class Foo in a method signature (e.g. as the return type). Then, 4038cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * define a subclass and a different version of Foo, and load them from a 4039cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * different class loader. If the subclass overrides the method, it will 4040cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * have a different concept of what Foo is than its parent does, so even 4041cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * though the method signature strings are identical, they actually mean 4042cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * different things. 4043cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * 4044cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * A call to the method through a base-class reference would be treated 4045cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * differently than a call to the method through a subclass reference, which 4046cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * isn't the way polymorphism works, so we have to reject the subclass. 4047cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * If the subclass doesn't override the base method, then there's no 4048cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * problem, because calls through base-class references and subclass 4049cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * references end up in the same place. 4050cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * 4051cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * We don't need to check to see if an interface's methods match with its 4052cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * superinterface's methods, because you can't instantiate an interface 4053cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * and do something inappropriate with it. If interface I1 extends I2 4054cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * and is implemented by C, and I1 and I2 are in separate class loaders 4055cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * and have conflicting views of other classes, we will catch the conflict 4056cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * when we process C. Anything that implements I1 is doomed to failure, 4057cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * but we don't need to catch that while processing I1. 4058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, throws an exception and returns "false". 4060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool validateSuperDescriptors(const ClassObject* clazz) 4062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz)) 4066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 4067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Start with the superclass-declared methods. 4070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL && 4072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->classLoader != clazz->super->classLoader) 4073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 4074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4075cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * Walk through every overridden method and compare resolved 4076cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * descriptor components. We pull the Method structs out of 4077cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * the vtable. It doesn't matter whether we get the struct from 4078cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * the parent or child, since we just need the UTF-8 descriptor, 4079cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * which must match. 4080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We need to do this even for the stuff inherited from Object, 4082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because it's possible that the new class loader has redefined 4083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a basic class like String. 4084e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * 4085e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * We don't need to check stuff defined in a superclass because 4086e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * it was checked when the superclass was loaded. 4087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* meth; 4089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("Checking %s %p vs %s %p\n", 4091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->classLoader, 4092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->super->descriptor, clazz->super->classLoader); 4093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = clazz->super->vtableCount - 1; i >= 0; i--) { 4094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->vtable[i]; 4095cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden if (meth != clazz->super->vtable[i] && 4096cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden !checkMethodDescriptorClasses(meth, clazz->super, clazz)) 4097cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden { 4098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method mismatch: %s in %s (cl=%p) and super %s (cl=%p)\n", 4099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name, clazz->descriptor, clazz->classLoader, 4100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super->descriptor, clazz->super->classLoader); 4101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 4102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Classes resolve differently in superclass"); 4103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4109e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * Check the methods defined by this class against the interfaces it 4110e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * implements. If we inherited the implementation from a superclass, 4111e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * we have to check it against the superclass (which might be in a 4112e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * different class loader). If the superclass also implements the 4113e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * interface, we could skip the check since by definition it was 4114e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * performed when the class was loaded. 4115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->iftableCount; i++) { 4117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const InterfaceEntry* iftable = &clazz->iftable[i]; 4118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->classLoader != iftable->clazz->classLoader) { 4120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* iface = iftable->clazz; 4121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 4122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < iface->virtualMethodCount; j++) { 4124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* meth; 4125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int vtableIndex; 4126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project vtableIndex = iftable->methodIndexArray[j]; 4128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->vtable[vtableIndex]; 4129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4130e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden if (!checkMethodDescriptorClasses(meth, iface, meth->clazz)) { 4131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method mismatch: %s in %s (cl=%p) and " 4132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "iface %s (cl=%p)\n", 4133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name, clazz->descriptor, clazz->classLoader, 4134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project iface->descriptor, iface->classLoader); 4135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 4136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Classes resolve differently in interface"); 4137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 4144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns true if the class is being initialized by us (which means that 4148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * calling dvmInitClass will return immediately after fiddling with locks). 4149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * There isn't a race here, because either clazz->initThreadId won't match 4151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * us, or it will and it was set in the same thread. 4152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmIsClassInitializing(const ClassObject* clazz) 4154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (clazz->status == CLASS_INITIALIZING && 4156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId == dvmThreadSelf()->threadId); 4157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If a class has not been initialized, do so by executing the code in 4161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * <clinit>. The sequence is described in the VM spec v2 2.17.5. 4162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It is possible for multiple threads to arrive here simultaneously, so 4164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we need to lock the class while we check stuff. We know that no 4165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interpreted code has access to the class yet, so we can use the class's 4166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * monitor lock. 4167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We will often be called recursively, e.g. when the <clinit> code resolves 4169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * one of its fields, the field resolution will try to initialize the class. 417077514abeade6960daf67f5fec3a865df29ea0256Andy McFadden * In that case we will return "true" even though the class isn't actually 417177514abeade6960daf67f5fec3a865df29ea0256Andy McFadden * ready to go. The ambiguity can be resolved with dvmIsClassInitializing(). 417277514abeade6960daf67f5fec3a865df29ea0256Andy McFadden * (TODO: consider having this return an enum to avoid the extra call -- 417377514abeade6960daf67f5fec3a865df29ea0256Andy McFadden * return -1 on failure, 0 on success, 1 on still-initializing. Looks like 417477514abeade6960daf67f5fec3a865df29ea0256Andy McFadden * dvmIsClassInitializing() is always paired with *Initialized()) 4175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This can get very interesting if a class has a static field initialized 4177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to a new instance of itself. <clinit> will end up calling <init> on 4178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the members it is initializing, which is fine unless it uses the contents 4179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of static fields to initialize instance fields. This will leave the 4180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * static-referenced objects in a partially initialized state. This is 4181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * reasonably rare and can sometimes be cured with proper field ordering. 4182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, returns "false" with an exception raised. 4184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ----- 4186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It is possible to cause a deadlock by having a situation like this: 4188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class A { static { sleep(10000); new B(); } } 4189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class B { static { sleep(10000); new A(); } } 4190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * new Thread() { public void run() { new A(); } }.start(); 4191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * new Thread() { public void run() { new B(); } }.start(); 4192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This appears to be expected under the spec. 4193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The interesting question is what to do if somebody calls Thread.interrupt() 4195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on one of the deadlocked threads. According to the VM spec, they're both 4196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sitting in "wait". Should the interrupt code quietly raise the 4197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "interrupted" flag, or should the "wait" return immediately with an 4198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exception raised? 4199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This gets a little murky. The VM spec says we call "wait", and the 4201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * spec for Thread.interrupt says Object.wait is interruptible. So it 4202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * seems that, if we get unlucky and interrupt class initialization, we 4203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * are expected to throw (which gets converted to ExceptionInInitializerError 4204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * since InterruptedException is checked). 4205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * There are a couple of problems here. First, all threads are expected to 4207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * present a consistent view of class initialization, so we can't have it 4208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fail in one thread and succeed in another. Second, once a class fails 4209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to initialize, it must *always* fail. This means that a stray interrupt() 4210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * call could render a class unusable for the lifetime of the VM. 4211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In most cases -- the deadlock example above being a counter-example -- 4213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the interrupting thread can't tell whether the target thread handled 4214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the initialization itself or had to wait while another thread did the 4215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * work. Refusing to interrupt class initialization is, in most cases, 4216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not something that a program can reliably detect. 4217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On the assumption that interrupting class initialization is highly 4219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * undesirable in most circumstances, and that failing to do so does not 4220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * deviate from the spec in a meaningful way, we don't allow class init 4221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to be interrupted by Thread.interrupt(). 4222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmInitClass(ClassObject* clazz) 4224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool initializedByUs = false; 4227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 4230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method; 4231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmIsClassLinked(clazz) || clazz->status == CLASS_ERROR); 4234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class hasn't been verified yet, do so now. 4237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status < CLASS_VERIFIED) { 4239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we're in an "erroneous" state, throw an exception and bail. 4241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 4244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_RESOLVED); 4248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(!IS_CLASS_FLAG_SET(clazz, CLASS_ISPREVERIFIED)); 4249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classVerifyMode == VERIFY_MODE_NONE || 4251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (gDvm.classVerifyMode == VERIFY_MODE_REMOTE && 4252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->classLoader == NULL)) 4253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 4254d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden /* advance to "verified" state */ 4255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ not verifying class %s (cl=%p)\n", 4256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader); 4257d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden clazz->status = CLASS_VERIFIED; 4258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto noverify; 4259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!gDvm.optimizing) 4262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ late verify on %s\n", clazz->descriptor); 4263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're not supposed to optimize an unverified class, but during 4266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * development this mode was useful. We can't verify an optimized 4267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class because the optimization process discards information. 4268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz, CLASS_ISOPTIMIZED)) { 4270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Class '%s' was optimized without verification; " 4271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "not verifying now\n", 4272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW(" ('rm /data/dalvik-cache/*' and restart to fix this)"); 4274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto verify_failed; 4275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFYING; 4278228a6b01918304f2cd1213c722e028a6e25252bbAndy McFadden if (!dvmVerifyClass(clazz)) { 4279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectverify_failed: 4280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage("Ljava/lang/VerifyError;", 4281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->verifyErrorClass = dvmGetException(self)->clazz; 4283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFIED; 4288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectnoverify: 4290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4291d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden#ifdef WITH_DEBUGGER 4292d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden /* update instruction stream now that the verifier is done */ 4293d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden dvmFlushBreakpoints(clazz); 4294d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden#endif 4295d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden 4296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_INITIALIZED) 4297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (clazz->status == CLASS_INITIALIZING) { 4300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* we caught somebody else in the act; was it us? */ 4301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->initThreadId == self->threadId) { 4302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("HEY: found a recursive <clinit>\n"); 4303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("GLITCH: exception pending at start of class init\n"); 4308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 4309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Wait for the other thread to finish initialization. We pass 4313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "false" for the "interruptShouldThrow" arg so it doesn't throw 4314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception on interrupt. 4315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectWait(self, (Object*) clazz, 0, 0, false); 4317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * When we wake up, repeat the test for init-in-progress. If there's 4320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception pending (only possible if "interruptShouldThrow" 4321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * was set), bail out. 4322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Class init of '%s' failing with wait() exception\n", 4325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: this is bogus, because it means the two threads have a 4328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * different idea of the class status. We need to flag the 4329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class as bad and ensure that the initializer thread respects 4330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our notice. If we get lucky and wake up after the class has 4331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finished initialization but before being woken, we have to 4332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * swallow the exception, perhaps raising thread->interrupted 4333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to preserve semantics. 4334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Since we're not currently allowing interrupts, this should 4336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * never happen and we don't need to fix this. 4337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 4339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwClinitError(); 4340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_INITIALIZING) { 4344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Waiting again for class init\n"); 4345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project continue; 4346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_INITIALIZED || 4348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status == CLASS_ERROR); 4349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller wants an exception, but it was thrown in a 4352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * different thread. Synthesize one here. 4353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/UnsatisfiedLinkError;", 4355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "(<clinit> failed, see exception in other thread)"); 4356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* see if we failed previously */ 4361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // might be wise to unlock before throwing; depends on which class 4363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // it is that we have locked 4364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 4366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4369c95e0fbce4f77b2b08eb48205e405793de0d4248Andy McFadden#ifdef WITH_PROFILER 4370e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden u8 startWhen = 0; 4371e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden if (gDvm.allocProf.enabled) { 4372e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden startWhen = dvmGetRelativeTimeNsec(); 4373e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden } 4374c95e0fbce4f77b2b08eb48205e405793de0d4248Andy McFadden#endif 4375e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden 4376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're ready to go, and have exclusive access to the class. 4378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Before we start initialization, we need to do one extra bit of 4380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * validation: make sure that the methods declared here match up 4381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with our superclass and interfaces. We know that the UTF-8 4382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptors match, but classes from different class loaders can 4383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have the same name. 4384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We do this now, rather than at load/link time, for the same reason 4386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that we defer verification. 4387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It's unfortunate that we need to do this at all, but we risk 4389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * mixing reference types with identical names (see Dalvik test 068). 4390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!validateSuperDescriptors(clazz)) { 4392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 4393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Let's initialize this thing. 4399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We unlock the object so that other threads can politely sleep on 4401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our mutex with Object.wait(), instead of hanging or spinning trying 4402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to grab our mutex. 4403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status < CLASS_INITIALIZING); 4405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // We started initializing. 4408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('+', clazz); 4409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initializedByUs = true; 4410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_INITIALIZING; 4413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = self->threadId; 4414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init our superclass */ 4417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL && clazz->super->status != CLASS_INITIALIZED) { 4418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(!dvmIsInterfaceClass(clazz)); 4419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz->super)) { 4420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 4421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* wake up anybody who started waiting while we were unlocked */ 4423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_notify; 4425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Initialize any static fields whose values are 4429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stored in the Dex file. This should include all of the 4430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * simple "final static" fields, which are required to 4431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be initialized first. (vmspec 2 sec 2.17.5 item 8) 4432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * More-complicated final static fields should be set 4433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * at the beginning of <clinit>; all we can do is trust 4434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that the compiler did the right thing. 4435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initSFields(clazz); 4437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Execute any static initialization code. 4439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method = dvmFindDirectMethodByDescriptor(clazz, "<clinit>", "()V"); 4441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (method == NULL) { 4442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("No <clinit> found for %s\n", clazz->descriptor); 4443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Invoking %s.<clinit>\n", clazz->descriptor); 4445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue unused; 4446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, method, NULL, &unused); 4447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We've had an exception thrown during static initialization. We 4452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * need to throw an ExceptionInInitializerError, but we want to 4453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * tuck the original exception into the "cause" field. 4454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Exception %s thrown during %s.<clinit>\n", 4456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (dvmGetException(self)->clazz)->descriptor, clazz->descriptor); 4457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwClinitError(); 4458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGW("+++ replaced\n"); 4459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* success! */ 4464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_INITIALIZED; 4466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Initialized class: %s\n", clazz->descriptor); 4467e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden 4468c95e0fbce4f77b2b08eb48205e405793de0d4248Andy McFadden#ifdef WITH_PROFILER 4469e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden /* 4470e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden * Update alloc counters. TODO: guard with mutex. 4471e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden */ 4472e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden if (gDvm.allocProf.enabled && startWhen != 0) { 4473e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden u8 initDuration = dvmGetRelativeTimeNsec() - startWhen; 4474e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden gDvm.allocProf.classInitTime += initDuration; 4475e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden self->allocProf.classInitTime += initDuration; 4476e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden gDvm.allocProf.classInitCount++; 4477e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden self->allocProf.classInitCount++; 4478e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden } 4479c95e0fbce4f77b2b08eb48205e405793de0d4248Andy McFadden#endif 4480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_notify: 4483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Notify anybody waiting on the object. 4485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 4487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_unlock: 4489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (initializedByUs) { 4492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // We finished initializing. 4493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('-', clazz); 4494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (clazz->status != CLASS_ERROR); 4500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Replace method->nativeFunc and method->insns with new values. This is 4504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * performed on resolution of a native method. 4505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetNativeFunc(const Method* method, DalvikBridgeFunc func, 4507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u2* insns) 4508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = method->clazz; 4510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* just open up both; easier that way */ 4512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 4513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->directMethods); 4514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ((Method*)method)->nativeFunc = func; 4516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ((Method*)method)->insns = insns; 4517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 4519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->directMethods); 4520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add a RegisterMap to a Method. This is done when we verify the class 452499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * and compute the register maps at class initialization time (i.e. when 452599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * we don't have a pre-generated map). This means "pMap" is on the heap 452699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * and should be freed when the Method is discarded. 4527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetRegisterMap(Method* method, const RegisterMap* pMap) 4529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = method->clazz; 4531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (method->registerMap != NULL) { 4533d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden /* unexpected during class loading, okay on first use (uncompress) */ 45349faa9e6a7df9a5b9ef7c8e9d5c07d2a050c319d3Andy McFadden LOGV("NOTE: registerMap already set for %s.%s\n", 4535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method->clazz->descriptor, method->name); 4536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* keep going */ 4537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 453899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert(!dvmIsNativeMethod(method) && !dvmIsAbstractMethod(method)); 4539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* might be virtual or direct */ 4541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 4542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->directMethods); 4543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method->registerMap = pMap; 4545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 4547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->directMethods); 4548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmHashForeach callback. A nonzero return value causes foreach to 4552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bail out. 4553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int findClassCallback(void* vclazz, void* arg) 4555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = vclazz; 4557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor = (const char*) arg; 4558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, descriptor) == 0) 4560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (int) clazz; 4561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find a loaded class by descriptor. Returns the first one found. 4566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because there can be more than one if class loaders are involved, 4567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this is not an especially good API. (Currently only used by the 4568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * debugger and "checking" JNI.) 4569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "descriptor" should have the form "Ljava/lang/Class;" or 4571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "[Ljava/lang/Class;", i.e. a descriptor and not an internal-form 4572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class name. 4573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindLoadedClass(const char* descriptor) 4575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result; 4577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = dvmHashForeach(gDvm.loadedClasses, findClassCallback, 4580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (void*) descriptor); 4581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (ClassObject*) result; 4584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Retrieve the system (a/k/a application) class loader. 4588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectObject* dvmGetSystemClassLoader(void) 4590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 4592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* getSysMeth; 4593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader; 4594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindSystemClass("Ljava/lang/ClassLoader;"); 4596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) 4597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 4598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project getSysMeth = dvmFindDirectMethodByDescriptor(clazz, "getSystemClassLoader", 4600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "()Ljava/lang/ClassLoader;"); 4601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (getSysMeth == NULL) 4602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 4603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue result; 4605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(dvmThreadSelf(), getSysMeth, NULL, &result); 4606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loader = (Object*)result.l; 4607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return loader; 4608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This is a dvmHashForeach callback. 4613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int dumpClass(void* vclazz, void* varg) 4615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 4617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* super; 4618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int flags = (int) varg; 4619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc; 4620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) { 4623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("dumpClass: ignoring request to dump null class\n"); 4624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((flags & kDumpClassFullDetail) == 0) { 4628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool showInit = (flags & kDumpClassInitialized) != 0; 4629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool showLoader = (flags & kDumpClassClassLoader) != 0; 4630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* initStr; 4631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initStr = dvmIsClassInitialized(clazz) ? "true" : "false"; 4633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (showInit && showLoader) 4635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %p %s\n", clazz->descriptor, clazz->classLoader, initStr); 4636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else if (showInit) 4637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %s\n", clazz->descriptor, initStr); 4638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else if (showLoader) 4639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %p\n", clazz->descriptor, clazz->classLoader); 4640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 4641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s\n", clazz->descriptor); 4642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* clazz->super briefly holds the superclass index during class prep */ 4647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((u4)clazz->super > 0x10000 && (u4) clazz->super != (u4)-1) 4648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super = clazz->super; 4649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 4650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super = NULL; 4651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("----- %s '%s' cl=%p ser=0x%08x -----\n", 4653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmIsInterfaceClass(clazz) ? "interface" : "class", 4654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader, clazz->serialNumber); 4655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" objectSize=%d (%d from super)\n", (int) clazz->objectSize, 4656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super != NULL ? (int) super->objectSize : -1); 4657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" access=0x%04x.%04x\n", clazz->accessFlags >> 16, 4658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->accessFlags & JAVA_FLAGS_MASK); 4659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (super != NULL) 4660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" super='%s' (cl=%p)\n", super->descriptor, super->classLoader); 4661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsArrayClass(clazz)) { 4662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" dimensions=%d elementClass=%s\n", 4663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->arrayDim, clazz->elementClass->descriptor); 4664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->iftableCount > 0) { 4666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" interfaces (%d):\n", clazz->iftableCount); 4667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->iftableCount; i++) { 4668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InterfaceEntry* ent = &clazz->iftable[i]; 4669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 4670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %s (cl=%p)\n", 4672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i, ent->clazz->descriptor, ent->clazz->classLoader); 4673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* enable when needed */ 4675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false && ent->methodIndexArray != NULL) { 4676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < ent->clazz->virtualMethodCount; j++) 4677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %d %s %s\n", 4678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j, ent->methodIndexArray[j], 4679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ent->clazz->virtualMethods[j].name, 4680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[ent->methodIndexArray[j]]->name); 4681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(clazz)) { 4685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" vtable (%d entries, %d in super):\n", clazz->vtableCount, 4686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super != NULL ? super->vtableCount : 0); 4687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->vtableCount; i++) { 4688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor(&clazz->vtable[i]->prototype); 4689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %s%2d: %p %20s %s\n", 4690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (i != clazz->vtable[i]->methodIndex) ? "*** " : "", 4691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (u4) clazz->vtable[i]->methodIndex, clazz->vtable[i], 4692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[i]->name, desc); 4693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" direct methods (%d entries):\n", clazz->directMethodCount); 4696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->directMethodCount; i++) { 4697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor( 4698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &clazz->directMethods[i].prototype); 4699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->directMethods[i].name, 4700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc); 4701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" interface methods (%d):\n", clazz->virtualMethodCount); 4705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++) { 4706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor( 4707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &clazz->virtualMethods[i].prototype); 4708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %2d %20s %s\n", i, 4709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (u4) clazz->virtualMethods[i].methodIndex, 4710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].name, 4711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc); 4712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->sfieldCount > 0) { 4716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" static fields (%d entries):\n", clazz->sfieldCount); 4717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->sfieldCount; i++) { 4718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->sfields[i].field.name, 4719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->sfields[i].field.signature); 4720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->ifieldCount > 0) { 4723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" instance fields (%d entries):\n", clazz->ifieldCount); 4724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 4725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->ifields[i].field.name, 4726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifields[i].field.signature); 4727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of a single class. 4734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pass kDumpClassFullDetail into "flags" to get lots of detail. 4736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpClass(const ClassObject* clazz, int flags) 4738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dumpClass((void*) clazz, (void*) flags); 4740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of all classes. 4744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpAllClasses(int flags) 4746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, dumpClass, (void*) flags); 4749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Get the number of loaded classes 4754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmGetNumLoadedClasses() 4756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count; 4758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count = dvmHashTableNumEntries(gDvm.loadedClasses); 4760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return count; 4762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Write some statistics to the log file. 4766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpLoaderStats(const char* msg) 4768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("VM stats (%s): cls=%d/%d meth=%d ifld=%d sfld=%d linear=%d\n", 4770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project msg, gDvm.numLoadedClasses, dvmHashTableNumEntries(gDvm.loadedClasses), 4771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredMethods, gDvm.numDeclaredInstFields, 4772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredStaticFields, gDvm.pBootLoaderAlloc->curOffset); 4773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef COUNT_PRECISE_METHODS 4774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("GC precise methods: %d\n", 4775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmPointerSetGetCount(gDvm.preciseMethods)); 4776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef PROFILE_FIELD_ACCESS 4780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the field access counts for all fields in this method. 4782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int dumpAccessCounts(void* vclazz, void* varg) 4784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 4786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 4789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Field* field = &clazz->ifields[i].field; 4790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->gets != 0) 4792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("GI %d %s.%s\n", field->gets, 4793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->puts != 0) 4795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("PI %d %s.%s\n", field->puts, 4796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->sfieldCount; i++) { 4799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Field* field = &clazz->sfields[i].field; 4800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->gets != 0) 4802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("GS %d %s.%s\n", field->gets, 4803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->puts != 0) 4805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("PS %d %s.%s\n", field->puts, 4806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the field access counts for all loaded classes. 4814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpFieldAccessCounts(void) 4816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, dumpAccessCounts, NULL); 4819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Mark all classes associated with the built-in loader. 4826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int markClassObject(void *clazz, void *arg) 4828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project UNUSED_PARAMETER(arg); 4830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMarkObjectNonNull((Object *)clazz); 4832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The garbage collector calls this to mark the class objects for all 4837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loaded classes. 4838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmGcScanRootClassLoader() 4840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* dvmClassStartup() may not have been called before the first GC. 4842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.loadedClasses != NULL) { 4844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, markClassObject, NULL); 4846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 4853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Method Prototypes and Descriptors 4854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 4855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare the two method names and prototypes, a la strcmp(). The 4859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * name is considered the "major" order and the prototype the "minor" 4860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * order. The prototypes are compared as if by dvmCompareMethodProtos(). 4861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareMethodNamesAndProtos(const Method* method1, 4863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method2) 4864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(method1->name, method2->name); 4866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareMethodProtos(method1, method2); 4872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare the two method names and prototypes, a la strcmp(), ignoring 4876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the return value. The name is considered the "major" order and the 4877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * prototype the "minor" order. The prototypes are compared as if by 4878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmCompareMethodArgProtos(). 4879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareMethodNamesAndParameterProtos(const Method* method1, 4881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method2) 4882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(method1->name, method2->name); 4884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareMethodParameterProtos(method1, method2); 4890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare a (name, prototype) pair with the (name, prototype) of 4894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a method, a la strcmp(). The name is considered the "major" order and 4895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the prototype the "minor" order. The descriptor and prototype are 4896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compared as if by dvmCompareDescriptorAndMethodProto(). 4897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareNameProtoAndMethod(const char* name, 4899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexProto* proto, const Method* method) 4900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(name, method->name); 4902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dexProtoCompare(proto, &method->prototype); 4908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare a (name, method descriptor) pair with the (name, prototype) of 4912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a method, a la strcmp(). The name is considered the "major" order and 4913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the prototype the "minor" order. The descriptor and prototype are 4914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compared as if by dvmCompareDescriptorAndMethodProto(). 4915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareNameDescriptorAndMethod(const char* name, 4917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor, const Method* method) 4918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(name, method->name); 4920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareDescriptorAndMethodProto(descriptor, method); 4926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4927