Class.cpp revision 0477139e2b3e614c6bc20d15c43e5e9b28ae9c13
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" 26fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden#include "analysis/Optimize.h" 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <stdlib.h> 29f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <stddef.h> 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <sys/stat.h> 31f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 33f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <unistd.h> 34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <pthread.h> 35f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <cutils/process_name.h> 36f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#include <sys/types.h> 37f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 38f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 39f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectNotes on Linking and Verification 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThe basic way to retrieve a class is to load it, make sure its superclass 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectand interfaces are available, prepare its fields, and return it. This gets 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecta little more complicated when multiple threads can be trying to retrieve 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthe class simultaneously, requiring that we use the class object's monitor 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectto keep things orderly. 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThe linking (preparing, resolving) of a class can cause us to recursively 49f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectload superclasses and interfaces. Barring circular references (e.g. two 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectclasses that are superclasses of each other), this will complete without 51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthe loader attempting to access the partially-linked class. 52f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectWith verification, the situation is different. If we try to verify 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectevery class as we load it, we quickly run into trouble. Even the lowly 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectjava.lang.Object requires CloneNotSupportedException; follow the list 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectof referenced classes and you can head down quite a trail. The trail 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecteventually leads back to Object, which is officially not fully-formed yet. 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThe VM spec (specifically, v2 5.4.1) notes that classes pulled in during 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectverification do not need to be prepared or verified. This means that we 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectare allowed to have loaded but unverified classes. It further notes that 62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthe class must be verified before it is initialized, which allows us to 63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectdefer verification for all classes until class init. You can't execute 64f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectcode or access fields in an uninitialized class, so this is safe. 65f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectIt also allows a more peaceful coexistence between verified and 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectunverifiable code. If class A refers to B, and B has a method that 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectrefers to a bogus class C, should we allow class A to be verified? 69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectIf A only exercises parts of B that don't use class C, then there is 70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectnothing wrong with running code in A. We can fully verify both A and B, 71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectand allow execution to continue until B causes initialization of C. The 72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectVerifyError is thrown close to the point of use. 73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThis gets a little weird with java.lang.Class, which is the only class 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthat can be instantiated before it is initialized. We have to force 76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectinitialization right after the class is created, because by definition we 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecthave instances of it on the heap, and somebody might get a class object and 78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstart making virtual calls on it. We can end up going recursive during 79f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectverification of java.lang.Class, but we avoid that by checking to see if 80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectverification is already in progress before we try to initialize it. 81f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project*/ 82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 83f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectNotes on class loaders and interaction with optimization / verification 85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectIn what follows, "pre-verification" and "optimization" are the steps 87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectperformed by the dexopt command, which attempts to verify and optimize 88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectclasses as part of unpacking jar files and storing the DEX data in the 89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectdalvik-cache directory. These steps are performed by loading the DEX 90f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfiles directly, without any assistance from ClassLoader instances. 91f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 92f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectWhen we pre-verify and optimize a class in a DEX file, we make some 93f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectassumptions about where the class loader will go to look for classes. 94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectIf we can't guarantee those assumptions, e.g. because a class ("AppClass") 95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectreferences something not defined in the bootstrap jars or the AppClass jar, 96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectwe can't pre-verify or optimize the class. 97f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 98f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThe VM doesn't define the behavior of user-defined class loaders. 99f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectFor example, suppose application class AppClass, loaded by UserLoader, 100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecthas a method that creates a java.lang.String. The first time 101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectAppClass.stringyMethod tries to do something with java.lang.String, it 102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectasks UserLoader to find it. UserLoader is expected to defer to its parent 103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectloader, but isn't required to. UserLoader might provide a replacement 104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfor String. 105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectWe can run into trouble if we pre-verify AppClass with the assumption that 107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectjava.lang.String will come from core.jar, and don't verify this assumption 108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectat runtime. There are two places that an alternate implementation of 109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectjava.lang.String can come from: the AppClass jar, or from some other jar 110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthat UserLoader knows about. (Someday UserLoader will be able to generate 111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectsome bytecode and call DefineClass, but not yet.) 112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectTo handle the first situation, the pre-verifier will explicitly check for 114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectconflicts between the class being optimized/verified and the bootstrap 115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectclasses. If an app jar contains a class that has the same package and 116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectclass name as a class in a bootstrap jar, the verification resolver refuses 117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectto find either, which will block pre-verification and optimization on 118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectclasses that reference ambiguity. The VM will postpone verification of 119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthe app class until first load. 120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectFor the second situation, we need to ensure that all references from a 122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpre-verified class are satisified by the class' jar or earlier bootstrap 123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectjars. In concrete terms: when resolving a reference to NewClass, 124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectwhich was caused by a reference in class AppClass, we check to see if 125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectAppClass was pre-verified. If so, we require that NewClass comes out 126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectof either the AppClass jar or one of the jars in the bootstrap path. 127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project(We may not control the class loaders, but we do manage the DEX files. 128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectWe can verify that it's either (loader==null && dexFile==a_boot_dex) 129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projector (loader==UserLoader && dexFile==AppClass.dexFile). Classes from 130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectDefineClass can't be pre-verified, so this doesn't apply.) 131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThis should ensure that you can't "fake out" the pre-verifier by creating 133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecta user-defined class loader that replaces system classes. It should 134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectalso ensure that you can write such a loader and have it work in the 135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectexpected fashion; all you lose is some performance due to "just-in-time 136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectverification" and the lack of DEX optimizations. 137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThere is a "back door" of sorts in the class resolution check, due to 139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectthe fact that the "class ref" entries are shared between the bytecode 140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectand meta-data references (e.g. annotations and exception handler lists). 141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThe class references in annotations have no bearing on class verification, 142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectso when a class does an annotation query that causes a class reference 143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectindex to be resolved, we don't want to fail just because the calling 144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectclass was pre-verified and the resolved class is in some random DEX file. 145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectThe successful resolution adds the class to the "resolved classes" table, 146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectso when optimized bytecode references it we don't repeat the resolve-time 147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectcheck. We can avoid this by not updating the "resolved classes" table 148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectwhen the class reference doesn't come out of something that has been 149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectchecked by the verifier, but that has a nonzero performance impact. 150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectSince the ultimate goal of this test is to catch an unusual situation 151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project(user-defined class loaders redefining core classes), the added caution 152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectmay not be worth the performance hit. 153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project*/ 154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1557ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden/* 1567ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden * Class serial numbers start at this value. We use a nonzero initial 1577ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden * value so they stand out in binary dumps (e.g. hprof output). 1587ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden */ 1592c98747b403970ef4b3352e271633f93935b9825Barry Hayes#define INITIAL_CLASS_SERIAL_NUMBER 0x50000000 1607ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden 1617ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden/* 1627ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden * Constant used to size an auxillary class object data structure. 1637ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden * For optimum memory use this should be equal to or slightly larger than 1647ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden * the number of classes loaded when the zygote finishes initializing. 1657ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden */ 1667ccb7a6a563396e4b64069dd4e57977d1b5b6180Andy McFadden#define ZYGOTE_CLASS_CUTOFF 2304 1672c98747b403970ef4b3352e271633f93935b9825Barry Hayes 168c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes#define CLASS_SFIELD_SLOTS 1 169c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassPathEntry* processClassPath(const char* pathStr, bool isBootstrap); 171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeCpeArray(ClassPathEntry* cpe); 172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassFromLoaderNoInit( 174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor, Object* loader); 175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassNoInit(const char* descriptor, Object* loader,\ 176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex); 177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex(DvmDex* pDvmDex, 178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, Object* loader); 179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadMethodFromDex(ClassObject* clazz, const DexMethod* pDexMethod,\ 180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth); 181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int computeJniArgInfo(const DexProto* proto); 182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadSFieldFromDex(ClassObject* clazz, 183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexSField, StaticField* sfield); 184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadIFieldFromDex(ClassObject* clazz, 185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexIField, InstField* field); 1866daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayesstatic bool precacheReferenceOffsets(ClassObject* clazz); 1876daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayesstatic void computeRefOffsets(ClassObject* clazz); 188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeMethodInnards(Method* meth); 189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createVtable(ClassObject* clazz); 190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createIftable(ClassObject* clazz); 191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool insertMethodStubs(ClassObject* clazz); 192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool computeFieldOffsets(ClassObject* clazz); 193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwEarlierClassFailure(ClassObject* clazz); 194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Logs information about a class loading with given timestamp. 198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: In the case where we fail in dvmLinkClass() and log the class as closing (type='<'), 200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it would probably be better to use a new type code to indicate the failure. This change would 201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * require a matching change in the parser and analysis code in frameworks/base/tools/preload. 202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void logClassLoadWithTime(char type, ClassObject* clazz, u8 time) { 204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pid_t ppid = getppid(); 205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pid_t pid = getpid(); 206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project unsigned int tid = (unsigned int) pthread_self(); 207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOG(LOG_INFO, "PRELOAD", "%c%d:%d:%d:%s:%d:%s:%lld\n", type, ppid, pid, tid, 209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project get_process_name(), (int) clazz->classLoader, clazz->descriptor, 210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project time); 211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Logs information about a class loading. 215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void logClassLoad(char type, ClassObject* clazz) { 217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoadWithTime(type, clazz, dvmGetThreadCpuTimeNsec()); 218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Some LinearAlloc unit tests. 223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void linearAllocTests() 225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* fiddle; 227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int try = 1; 228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (try) { 230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 0: 231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-28); 232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 1: 235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-24); 236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 2: 239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-20); 240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 3: 243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-16); 244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 4: 247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 3200-12); 248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 896); 252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 20); // watch addr of this alloc 254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 1); 257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'q'; 258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 4096); 260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'x'; 261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[4095] = 'y'; 262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(NULL, fiddle); 264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 0); 265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearRealloc(NULL, fiddle, 12); 267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[11] = 'z'; 268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearRealloc(NULL, fiddle, 5); 270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle = dvmLinearAlloc(NULL, 17001); 272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[0] = 'x'; 273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fiddle[17000] = 'y'; 274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(NULL, fiddle); 275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* str = dvmLinearStrdup(NULL, "This is a test!"); 277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("GOT: '%s'\n", str); 278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2797605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden /* try to check the bounds; allocator may round allocation size up */ 2807605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden fiddle = dvmLinearAlloc(NULL, 12); 2817605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden LOGI("Should be 1: %d\n", dvmLinearAllocContains(fiddle, 12)); 2827605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden LOGI("Should be 0: %d\n", dvmLinearAllocContains(fiddle, 13)); 2837605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden LOGI("Should be 0: %d\n", dvmLinearAllocContains(fiddle - 128*1024, 1)); 2847605a84a9a0a1764c1fb290d9c93e8114eaf620aAndy McFadden 285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearAllocDump(NULL); 286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(NULL, str); 287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 289c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayesstatic size_t classObjectSize(size_t sfieldCount) 290c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes{ 291c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes size_t size; 292c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 293c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes size = offsetof(ClassObject, sfields); 294c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes size += sizeof(StaticField) * sfieldCount; 295c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes return size; 296c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes} 297c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 298c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayessize_t dvmClassObjectSize(const ClassObject *clazz) 299c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes{ 300c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz != NULL); 301c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes return classObjectSize(clazz->sfieldCount); 302c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes} 303c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Initialize the bootstrap class loader. 306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Call this after the bootclasspath string has been finalized. 308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmClassStartup(void) 310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* make this a requirement -- don't currently support dirs in path */ 312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(gDvm.bootClassPathStr, ".") == 0) { 313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: must specify non-'.' bootclasspath\n"); 314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.loadedClasses = 318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableCreate(256, (HashFreeFunc) dvmFreeClassInnards); 319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.pBootLoaderAlloc = dvmLinearAllocCreate(NULL); 321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.pBootLoaderAlloc == NULL) 322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false) { 325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project linearAllocTests(); 326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project exit(0); 327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class serial number. We start with a high value to make it distinct 331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in binary dumps (e.g. hprof). 332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3332c98747b403970ef4b3352e271633f93935b9825Barry Hayes gDvm.classSerialNumber = INITIAL_CLASS_SERIAL_NUMBER; 334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3352c98747b403970ef4b3352e271633f93935b9825Barry Hayes /* Set up the table we'll use for tracking initiating loaders for 3362c98747b403970ef4b3352e271633f93935b9825Barry Hayes * early classes. 3372c98747b403970ef4b3352e271633f93935b9825Barry Hayes * If it's NULL, we just fall back to the InitiatingLoaderList in the 3382c98747b403970ef4b3352e271633f93935b9825Barry Hayes * ClassObject, so it's not fatal to fail this allocation. 3392c98747b403970ef4b3352e271633f93935b9825Barry Hayes */ 3402c98747b403970ef4b3352e271633f93935b9825Barry Hayes gDvm.initiatingLoaderList = 3412c98747b403970ef4b3352e271633f93935b9825Barry Hayes calloc(ZYGOTE_CLASS_CUTOFF, sizeof(InitiatingLoaderList)); 342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 343c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes gDvm.classJavaLangClass = (ClassObject*) dvmMalloc( 344c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes classObjectSize(CLASS_SFIELD_SLOTS), ALLOC_DEFAULT); 345c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes DVM_OBJECT_INIT(&gDvm.classJavaLangClass->obj, gDvm.classJavaLangClass); 346c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes gDvm.classJavaLangClass->descriptor = "Ljava/lang/Class;"; 3470477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden 348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Process the bootstrap class path. This means opening the specified 350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * DEX or Jar files and possibly running them through the optimizer. 351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.bootClassPath == NULL); 353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project processClassPath(gDvm.bootClassPathStr, true); 354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.bootClassPath == NULL) 356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3580477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden /* 3590477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden * We should be able to find classes now. Get the vtable index for 3600477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden * the class loader loadClass() method. 3610477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden */ 3620477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden ClassObject* clClass = dvmFindSystemClassNoInit("Ljava/lang/ClassLoader;"); 3630477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden Method* meth = dvmFindVirtualMethodByDescriptor(clClass, "loadClass", 3640477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden "(Ljava/lang/String;)Ljava/lang/Class;"); 3650477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden if (meth == NULL) { 3660477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden LOGE("Unable to find loadClass() in java.lang.ClassLoader\n"); 3670477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden return false; 3680477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden } 3690477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden gDvm.voffJavaLangClassLoader_loadClass = meth->methodIndex; 3700477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden 371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Clean up. 376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmClassShutdown(void) 378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* discard all system-loaded classes */ 382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableFree(gDvm.loadedClasses); 383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.loadedClasses = NULL; 384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* discard primitive classes created for arrays */ 386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < PRIM_MAX; i++) 387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFreeClassInnards(gDvm.primitiveClass[i]); 388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* this closes DEX files, JAR files, etc. */ 390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeCpeArray(gDvm.bootClassPath); 391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = NULL; 392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearAllocDestroy(NULL); 3942c98747b403970ef4b3352e271633f93935b9825Barry Hayes 3952c98747b403970ef4b3352e271633f93935b9825Barry Hayes free(gDvm.initiatingLoaderList); 396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Bootstrap class loader 402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of a ClassPathEntry array. 407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void dumpClassPath(const ClassPathEntry* cpe) 409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int idx = 0; 411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* kindStr; 414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: kindStr = "dir"; break; 417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: kindStr = "jar"; break; 418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: kindStr = "dex"; break; 419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: kindStr = "???"; break; 420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: type=%s %s %p\n", idx, kindStr, cpe->fileName, cpe->ptr); 423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (CALC_CACHE_STATS && cpe->kind == kCpeJar) { 424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex = dvmGetJarFileDex(pJarFile); 426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDumpAtomicCacheStats(pDvmDex->pInterfaceCache); 427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx++; 431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of the bootstrap class path. 436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpBootClassPath(void) 438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dumpClassPath(gDvm.bootClassPath); 440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if the class path contains the specified path. 444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmClassPathContains(const ClassPathEntry* cpe, const char* path) 446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(cpe->fileName, path) == 0) 449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free an array of ClassPathEntry structs. 458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We release the contents of each entry, then free the array itself. 460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeCpeArray(ClassPathEntry* cpe) 462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry* cpeStart = cpe; 464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cpe == NULL) 466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* free JarFile */ 472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmJarFileFree((JarFile*) cpe->ptr); 473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* free RawDexFile */ 476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmRawDexFileFree((RawDexFile*) cpe->ptr); 477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* e.g. kCpeDir */ 480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(cpe->ptr == NULL); 481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpe->fileName); 485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpeStart); 489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Prepare a ClassPathEntry struct, which at this point only has a valid 493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * filename. We need to figure out what kind of file it is, and for 494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * everything other than directories we need to open it up and see 495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * what's inside. 496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool prepareCpe(ClassPathEntry* cpe, bool isBootstrap) 498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = NULL; 500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RawDexFile* pRawDexFile = NULL; 501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project struct stat sb; 502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int cc; 503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cc = stat(cpe->fileName, &sb); 505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cc < 0) { 5061b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden LOGD("Unable to stat classpath element '%s'\n", cpe->fileName); 507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (S_ISDIR(sb.st_mode)) { 510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The directory will usually have .class files in subdirectories, 512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * which may be a few levels down. Doing a recursive scan and 513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * caching the results would help us avoid hitting the filesystem 514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on misses. Whether or not this is of measureable benefit 515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * depends on a number of factors, but most likely it is not 516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * worth the effort (especially since most of our stuff will be 517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in DEX or JAR). 518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeDir; 520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(cpe->ptr == NULL); 521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmJarFileOpen(cpe->fileName, NULL, &pJarFile, isBootstrap) == 0) { 525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeJar; 526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->ptr = pJarFile; 527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // TODO: do we still want to support "raw" DEX files in the classpath? 531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmRawDexFileOpen(cpe->fileName, NULL, &pRawDexFile, isBootstrap) == 0) 532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->kind = kCpeDex; 534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->ptr = pRawDexFile; 535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 5381b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden LOGD("Unable to process classpath element '%s'\n", cpe->fileName); 539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Convert a colon-separated list of directories, Zip files, and DEX files 544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * into an array of ClassPathEntry structs. 545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * During normal startup we fail if there are no entries, because we won't 547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * get very far without the basic language support classes, but if we're 548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * optimizing a DEX file we allow it. 5491b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * 5501b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * If entries are added or removed from the bootstrap class path, the 5511b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * dependencies in the DEX files will break, and everything except the 5521b5895818bfe6c703b8803dd3f954709bf725983Andy McFadden * very first entry will need to be regenerated. 553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassPathEntry* processClassPath(const char* pathStr, bool isBootstrap) 555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry* cpe = NULL; 557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* mangle; 558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* cp; 559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* end; 560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int idx, count; 561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pathStr != NULL); 563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mangle = strdup(pathStr); 565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Run through and essentially strtok() the string. Get a count of 568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the #of elements while we're at it. 569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the path was constructed strangely (e.g. ":foo::bar:") this will 571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * over-allocate, which isn't ideal but is mostly harmless. 572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count = 1; 574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (cp = mangle; *cp != '\0'; cp++) { 575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*cp == ':') { /* separates two entries */ 576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count++; 577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *cp = '\0'; 578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project end = cp; 581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Allocate storage. We over-alloc by one so we can set an "end" marker. 584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe = (ClassPathEntry*) calloc(count+1, sizeof(ClassPathEntry)); 586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set the global pointer so the DEX file dependency stuff can find it. 589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = cpe; 591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Go through a second time, pulling stuff out. 594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cp = mangle; 596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx = 0; 597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cp < end) { 598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*cp == '\0') { 599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* leading, trailing, or doubled ':'; ignore it */ 600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 60132bc0787307ba57e92fa74c52da550e2ca22af7fDan Bornstein if (isBootstrap && 60232bc0787307ba57e92fa74c52da550e2ca22af7fDan Bornstein dvmPathToAbsolutePortion(cp) == NULL) { 60332bc0787307ba57e92fa74c52da550e2ca22af7fDan Bornstein LOGE("Non-absolute bootclasspath entry '%s'\n", cp); 60432bc0787307ba57e92fa74c52da550e2ca22af7fDan Bornstein free(cpe); 60532bc0787307ba57e92fa74c52da550e2ca22af7fDan Bornstein cpe = NULL; 60632bc0787307ba57e92fa74c52da550e2ca22af7fDan Bornstein goto bail; 60732bc0787307ba57e92fa74c52da550e2ca22af7fDan Bornstein } 60832bc0787307ba57e92fa74c52da550e2ca22af7fDan Bornstein 609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassPathEntry tmp; 610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.kind = kCpeUnknown; 611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.fileName = strdup(cp); 612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmp.ptr = NULL; 613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 61432bc0787307ba57e92fa74c52da550e2ca22af7fDan Bornstein /* 61532bc0787307ba57e92fa74c52da550e2ca22af7fDan Bornstein * Drop an end marker here so DEX loader can walk unfinished 61632bc0787307ba57e92fa74c52da550e2ca22af7fDan Bornstein * list. 61732bc0787307ba57e92fa74c52da550e2ca22af7fDan Bornstein */ 618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].kind = kCpeLastEntry; 619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].fileName = NULL; 620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].ptr = NULL; 621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!prepareCpe(&tmp, isBootstrap)) { 623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* drop from list and continue on */ 624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(tmp.fileName); 625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* copy over, pointers and all */ 627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx] = tmp; 628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx++; 629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cp += strlen(cp) +1; 633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(idx <= count); 635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (idx == 0 && !gDvm.optimizing) { 63632bc0787307ba57e92fa74c52da550e2ca22af7fDan Bornstein LOGE("No valid entries found in bootclasspath '%s'\n", pathStr); 637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(cpe); 638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe = NULL; 639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" (filled %d of %d slots)\n", idx, count); 643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* put end marker in over-alloc slot */ 645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].kind = kCpeLastEntry; 646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].fileName = NULL; 647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe[idx].ptr = NULL; 648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dumpClassPath(cpe); 650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(mangle); 653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPath = cpe; 654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return cpe; 655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Search the DEX files we loaded from the bootstrap class path for a DEX 659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * file that has the class with the matching descriptor. 660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns the matching DEX file and DexClassDef entry if found, otherwise 662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * returns NULL. 663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic DvmDex* searchBootPathForClass(const char* descriptor, 665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef** ppClassDef) 666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pFoundDef = NULL; 669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pFoundFile = NULL; 670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("+++ class '%s' not yet loaded, scanning bootclasspath...\n", 672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor); 673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) { 675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ checking '%s' (%d)\n", cpe->fileName, cpe->kind); 676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: 679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Directory entries ('%s') not supported in bootclasspath\n", 680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe->fileName); 681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex; 687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = dvmGetJarFileDex(pJarFile); 689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = pDvmDex; 694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto found; 695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RawDexFile* pRawDexFile = (RawDexFile*) cpe->ptr; 701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex; 703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = dvmGetRawDexFileDex(pRawDexFile); 705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = pDvmDex; 710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto found; 711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unknown kind %d\n", cpe->kind); 716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Special handling during verification + optimization. 725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The DEX optimizer needs to load classes from the DEX file it's working 727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on. Rather than trying to insert it into the bootstrap class path 728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * or synthesizing a class loader to manage it, we just make it available 729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * here. It logically comes after all existing entries in the bootstrap 730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class path. 731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.bootClassPathOptExtra != NULL) { 733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = 736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexFindClass(gDvm.bootClassPathOptExtra->pDexFile, descriptor); 737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pClassDef != NULL) { 738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found */ 739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundDef = pClassDef; 740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFoundFile = gDvm.bootClassPathOptExtra; 741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfound: 745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *ppClassDef = pFoundDef; 746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return pFoundFile; 747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set the "extra" DEX, which becomes a de facto member of the bootstrap 751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class set. 752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetBootPathExtraDex(DvmDex* pDvmDex) 754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.bootClassPathOptExtra = pDvmDex; 756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Return the #of entries in the bootstrap class path. 761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (Used for ClassLoader.getResources().) 763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmGetBootPathSize(void) 765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (cpe->kind != kCpeLastEntry) 769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return cpe - gDvm.bootClassPath; 772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find a resource with the specified name in entry N of the boot class path. 776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We return a newly-allocated String of one of these forms: 778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * file://path/name 779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * jar:file://path!/name 780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Where "path" is the bootstrap class path entry and "name" is the string 781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * passed into this method. "path" needs to be an absolute path (starting 782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with '/'); if it's not we'd need to "absolutify" it as part of forming 783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the URL string. 784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectStringObject* dvmGetBootPathResource(const char* name, int idx) 786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const int kUrlOverhead = 13; // worst case for Jar URL 788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassPathEntry* cpe = gDvm.bootClassPath; 789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StringObject* urlObj = NULL; 790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ searching for resource '%s' in %d(%s)\n", 792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project name, idx, cpe[idx].fileName); 793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* we could use direct array index, but I don't entirely trust "idx" */ 795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (idx-- && cpe->kind != kCpeLastEntry) 796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cpe++; 797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (cpe->kind == kCpeLastEntry) { 798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char urlBuf[strlen(name) + strlen(cpe->fileName) + kUrlOverhead +1]; 803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (cpe->kind) { 805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDir: 806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sprintf(urlBuf, "file://%s/%s", cpe->fileName, name); 807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (access(urlBuf+7, F_OK) != 0) 808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeJar: 811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JarFile* pJarFile = (JarFile*) cpe->ptr; 813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dexZipFindEntry(&pJarFile->archive, name) == NULL) 814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sprintf(urlBuf, "jar:file://%s!/%s", cpe->fileName, name); 816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kCpeDex: 819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("No resources in DEX files\n"); 820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ using URL='%s'\n", urlBuf); 82781f3ebe03cd33c9003641084bece0604ee68bf88Barry Hayes urlObj = dvmCreateStringFromCstr(urlBuf); 828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return urlObj; 831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class list management 837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* search for these criteria in the Class hash table */ 841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projecttypedef struct ClassMatchCriteria { 842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader; 844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} ClassMatchCriteria; 845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define kInitLoaderInc 4 /* must be power of 2 */ 847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 8482c98747b403970ef4b3352e271633f93935b9825Barry Hayesstatic InitiatingLoaderList *dvmGetInitiatingLoaderList(ClassObject* clazz) 8492c98747b403970ef4b3352e271633f93935b9825Barry Hayes{ 850c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz->serialNumber >= INITIAL_CLASS_SERIAL_NUMBER); 8512c98747b403970ef4b3352e271633f93935b9825Barry Hayes int classIndex = clazz->serialNumber-INITIAL_CLASS_SERIAL_NUMBER; 8522c98747b403970ef4b3352e271633f93935b9825Barry Hayes if (gDvm.initiatingLoaderList != NULL && 8532c98747b403970ef4b3352e271633f93935b9825Barry Hayes classIndex < ZYGOTE_CLASS_CUTOFF) { 8542c98747b403970ef4b3352e271633f93935b9825Barry Hayes return &(gDvm.initiatingLoaderList[classIndex]); 8552c98747b403970ef4b3352e271633f93935b9825Barry Hayes } else { 8562c98747b403970ef4b3352e271633f93935b9825Barry Hayes return &(clazz->initiatingLoaderList); 8572c98747b403970ef4b3352e271633f93935b9825Barry Hayes } 8582c98747b403970ef4b3352e271633f93935b9825Barry Hayes} 8592c98747b403970ef4b3352e271633f93935b9825Barry Hayes 860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Determine if "loader" appears in clazz' initiating loader list. 862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class hash table lock must be held when calling here, since 864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it's also used when updating a class' initiating loader list. 865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: switch to some sort of lock-free data structure so we don't have 867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to grab the lock to do a lookup. Among other things, this would improve 868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the speed of compareDescriptorClasses(). 869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmLoaderInInitiatingList(const ClassObject* clazz, const Object* loader) 871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The bootstrap class loader can't be just an initiating loader for 874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything (it's always the defining loader if the class is visible 875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to it). We don't put defining loaders in the initiating list. 876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader == NULL) 878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Scan the list for a match. The list is expected to be short. 882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 8832c98747b403970ef4b3352e271633f93935b9825Barry Hayes /* Cast to remove the const from clazz, but use const loaderList */ 8842c98747b403970ef4b3352e271633f93935b9825Barry Hayes ClassObject* nonConstClazz = (ClassObject*) clazz; 8852c98747b403970ef4b3352e271633f93935b9825Barry Hayes const InitiatingLoaderList *loaderList = 8862c98747b403970ef4b3352e271633f93935b9825Barry Hayes dvmGetInitiatingLoaderList(nonConstClazz); 887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 8882c98747b403970ef4b3352e271633f93935b9825Barry Hayes for (i = loaderList->initiatingLoaderCount-1; i >= 0; --i) { 8892c98747b403970ef4b3352e271633f93935b9825Barry Hayes if (loaderList->initiatingLoaders[i] == loader) { 890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("+++ found initiating match %p in %s\n", 891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // loader, clazz->descriptor); 892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add "loader" to clazz's initiating loader set, unless it's the defining 900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class loader. 901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In the common case this will be a short list, so we don't need to do 903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything too fancy here. 904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This locks gDvm.loadedClasses for synchronization, so don't hold it 906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * when calling here. 907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmAddInitiatingLoader(ClassObject* clazz, Object* loader) 909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != clazz->classLoader) { 911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader != NULL); 912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Adding %p to '%s' init list\n", loader, clazz->descriptor); 914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Make sure nobody snuck in. The penalty for adding twice is 918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pretty minor, and probably outweighs the O(n^2) hit for 919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * checking before every add, so we may not want to do this. 920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 9212c98747b403970ef4b3352e271633f93935b9825Barry Hayes //if (dvmLoaderInInitiatingList(clazz, loader)) { 9222c98747b403970ef4b3352e271633f93935b9825Barry Hayes // LOGW("WOW: simultaneous add of initiating class loader\n"); 9232c98747b403970ef4b3352e271633f93935b9825Barry Hayes // goto bail_unlock; 9242c98747b403970ef4b3352e271633f93935b9825Barry Hayes //} 925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The list never shrinks, so we just keep a count of the 928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * number of elements in it, and reallocate the buffer when 929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we run off the end. 930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The pointer is initially NULL, so we *do* want to call realloc 932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * when count==0. 933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 9342c98747b403970ef4b3352e271633f93935b9825Barry Hayes InitiatingLoaderList *loaderList = dvmGetInitiatingLoaderList(clazz); 9352c98747b403970ef4b3352e271633f93935b9825Barry Hayes if ((loaderList->initiatingLoaderCount & (kInitLoaderInc-1)) == 0) { 936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object** newList; 937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 9382c98747b403970ef4b3352e271633f93935b9825Barry Hayes newList = (Object**) realloc(loaderList->initiatingLoaders, 9392c98747b403970ef4b3352e271633f93935b9825Barry Hayes (loaderList->initiatingLoaderCount + kInitLoaderInc) 940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sizeof(Object*)); 941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newList == NULL) { 942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* this is mainly a cache, so it's not the EotW */ 943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 9462c98747b403970ef4b3352e271633f93935b9825Barry Hayes loaderList->initiatingLoaders = newList; 947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("Expanded init list to %d (%s)\n", 9492c98747b403970ef4b3352e271633f93935b9825Barry Hayes // loaderList->initiatingLoaderCount+kInitLoaderInc, 950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor); 951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 9522c98747b403970ef4b3352e271633f93935b9825Barry Hayes loaderList->initiatingLoaders[loaderList->initiatingLoaderCount++] = 9532c98747b403970ef4b3352e271633f93935b9825Barry Hayes loader; 954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_unlock: 956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This is a dvmHashTableLookup callback.) 962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Entries in the class hash table are stored as { descriptor, d-loader } 964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * tuples. If the hashed class descriptor matches the requested descriptor, 965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and the hashed defining class loader matches the requested class 966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader, we're good. If only the descriptor matches, we check to see if the 967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader is in the hashed class' initiating loader list. If so, we 968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * can return "true" immediately and skip some of the loadClass melodrama. 969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller must lock the hash table before calling here. 971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns 0 if a matching entry is found, nonzero otherwise. 973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int hashcmpClassByCrit(const void* vclazz, const void* vcrit) 975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassMatchCriteria* pCrit = (const ClassMatchCriteria*) vcrit; 978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool match; 979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project match = (strcmp(clazz->descriptor, pCrit->descriptor) == 0 && 981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (clazz->classLoader == pCrit->loader || 982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (pCrit->loader != NULL && 983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLoaderInInitiatingList(clazz, pCrit->loader)) )); 984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //if (match) 985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // LOGI("+++ %s %p matches existing %s %p\n", 986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // pCrit->descriptor, pCrit->loader, 987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->classLoader); 988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return !match; 989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Like hashcmpClassByCrit, but passing in a fully-formed ClassObject 993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * instead of a ClassMatchCriteria. 994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int hashcmpClassByClass(const void* vclazz, const void* vaddclazz) 996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* addClazz = (const ClassObject*) vaddclazz; 999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool match; 1000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project match = (strcmp(clazz->descriptor, addClazz->descriptor) == 0 && 1002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (clazz->classLoader == addClazz->classLoader || 1003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (addClazz->classLoader != NULL && 1004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLoaderInInitiatingList(clazz, addClazz->classLoader)) )); 1005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return !match; 1006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Search through the hash table to find an entry with a matching descriptor 1010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and an initiating class loader that matches "loader". 1011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The table entries are hashed on descriptor only, because they're unique 1013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on *defining* class loader, not *initiating* class loader. This isn't 1014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * great, because it guarantees we will have to probe when multiple 1015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class loaders are used. 1016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note this does NOT try to load a class; it just finds a class that 1018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has already been loaded. 1019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If "unprepOkay" is set, this will return classes that have been added 1021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to the hash table but are not yet fully loaded and linked. Otherwise, 1022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * such classes are ignored. (The only place that should set "unprepOkay" 1023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * is findClassNoInit(), which will wait for the prep to finish.) 1024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns NULL if not found. 1026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmLookupClass(const char* descriptor, Object* loader, 1028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool unprepOkay) 1029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassMatchCriteria crit; 1031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void* found; 1032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash; 1033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project crit.descriptor = descriptor; 1035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project crit.loader = loader; 1036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hash = dvmComputeUtf8Hash(descriptor); 1037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("threadid=%d: dvmLookupClass searching for '%s' %p\n", 1039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThreadSelf()->threadId, descriptor, loader); 1040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = dvmHashTableLookup(gDvm.loadedClasses, hash, &crit, 1043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByCrit, false); 1044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class has been added to the hash table but isn't ready for use. 1048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're going to act like we didn't see it, so that the caller will 1049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * go through the full "find class" path, which includes locking the 1050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * object and waiting until it's ready. We could do that lock/wait 1051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * here, but this is an extremely rare case, and it's simpler to have 1052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the wait-for-class code centralized. 1053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (found != NULL && !unprepOkay && !dvmIsClassLinked(found)) { 1055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Ignoring not-yet-ready %s, using slow path\n", 1056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ((ClassObject*)found)->descriptor); 1057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = NULL; 1058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (ClassObject*) found; 1061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add a new class to the hash table. 1065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class is considered "new" if it doesn't match on both the class 1067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptor and the defining class loader. 1068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: we should probably have separate hash tables for each 1070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ClassLoader. This could speed up dvmLookupClass and 1071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * other common operations. It does imply a VM-visible data structure 1072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for each ClassLoader object with loaded classes, which we don't 1073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have yet. 1074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmAddClassToHash(ClassObject* clazz) 1076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void* found; 1078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash; 1079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hash = dvmComputeUtf8Hash(clazz->descriptor); 1081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = dvmHashTableLookup(gDvm.loadedClasses, hash, clazz, 1084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByClass, true); 1085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ dvmAddClassToHash '%s' %p (isnew=%d) --> %p\n", 1088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader, 1089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (found == (void*) clazz), clazz); 1090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmCheckClassTablePerf(); 1092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* can happen if two threads load the same class simultaneously */ 1094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (found == (void*) clazz); 1095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if 0 1098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compute hash value for a class. 1100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectu4 hashcalcClass(const void* item) 1102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmComputeUtf8Hash(((const ClassObject*) item)->descriptor); 1104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Check the performance of the "loadedClasses" hash table. 1108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmCheckClassTablePerf(void) 1110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableProbeCount(gDvm.loadedClasses, hashcalcClass, 1113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hashcmpClassByClass); 1114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Remove a class object from the hash table. 1120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void removeClassFromHash(ClassObject* clazz) 1122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ removeClassFromHash '%s'\n", clazz->descriptor); 1124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hash = dvmComputeUtf8Hash(clazz->descriptor); 1126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 1128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmHashTableRemove(gDvm.loadedClasses, hash, clazz)) 1129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Hash table remove failed on class '%s'\n", clazz->descriptor); 1130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 1131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 1136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Class creation 1137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 1138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Set clazz->serialNumber to the next available value. 1142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This usually happens *very* early in class creation, so don't expect 1144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * anything else in the class to be ready. 1145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetClassSerialNumber(ClassObject* clazz) 1147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->serialNumber == 0); 1149fc3d31683a0120ba005f45f98dcbe1001064dafbAndy McFadden clazz->serialNumber = android_atomic_inc(&gDvm.classSerialNumber); 1150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), using the specified 1155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * initiating ClassLoader. 1156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class will be loaded and initialized if it has not already been. 1158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If necessary, the superclass will be loaded. 1159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class can't be found, returns NULL with an appropriate exception 1161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * raised. 1162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindClass(const char* descriptor, Object* loader) 1164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindClassNoInit(descriptor, loader); 1168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL && clazz->status < CLASS_INITIALIZED) { 1169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* initialize class */ 1170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz)) { 1171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init failed; leave it in the list, marked as bad */ 1172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 1173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_ERROR); 1174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), using the specified 1183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * initiating ClassLoader. 1184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class will be loaded if it has not already been, as will its 1186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass. It will not be initialized. 1187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class can't be found, returns NULL with an appropriate exception 1189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * raised. 1190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindClassNoInit(const char* descriptor, 1192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader) 1193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(descriptor != NULL); 1195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //assert(loader != NULL); 1196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("FindClassNoInit '%s' %p\n", descriptor, loader); 1198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (*descriptor == '[') { 1200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Array class. Find in table, generate if not found. 1202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmFindArrayClass(descriptor, loader); 1204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Regular class. Find in table, load if not found. 1207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != NULL) { 1209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassFromLoaderNoInit(descriptor, loader); 1210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmFindSystemClassNoInit(descriptor); 1212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load the named class (by descriptor) from the specified class 1218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loader. This calls out to let the ClassLoader object do its thing. 1219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns with NULL and an exception raised on error. 1221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassFromLoaderNoInit(const char* descriptor, 1223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader) 1224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("##### findClassFromLoaderNoInit (%s,%p)\n", 1226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // descriptor, loader); 1227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 1229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader != NULL); 1232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Do we already have it? 1235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class loader code does the "is it already loaded" check as 1237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * well. However, this call is much faster than calling through 1238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interpreted code. Doing this does mean that in the common case 1239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (365 out of 420 calls booting the sim) we're doing the 1240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * lookup-by-descriptor twice. It appears this is still a win, so 1241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm keeping it in. 1242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, false); 1244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL) { 1245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Already loaded: %s %p\n", descriptor, loader); 1246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Not already loaded: %s %p\n", descriptor, loader); 1249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* dotName = NULL; 1252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StringObject* nameObj = NULL; 1253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* convert "Landroid/debug/Stuff;" to "android.debug.Stuff" */ 1255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dotName = dvmDescriptorToDot(descriptor); 1256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dotName == NULL) { 1257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/OutOfMemoryError;", NULL); 1258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 126081f3ebe03cd33c9003641084bece0604ee68bf88Barry Hayes nameObj = dvmCreateStringFromCstr(dotName); 1261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (nameObj == NULL) { 1262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 1263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepBegin(); 1267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Invoke loadClass(). This will probably result in a couple of 1270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exceptions being thrown, because the ClassLoader.loadClass() 1271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implementation eventually calls VMClassLoader.loadClass to see if 1272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the bootstrap class loader can find it before doing its own load. 1273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- Invoking loadClass(%s, %p)\n", dotName, loader); 12750477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden const Method* loadClass = 12760477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden loader->clazz->vtable[gDvm.voffJavaLangClassLoader_loadClass]; 1277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue result; 1278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, loadClass, loader, &result, nameObj); 1279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = (ClassObject*) result.l; 1280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepEnd(); 1282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 12830477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden Object* excep = dvmGetException(self); 1284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (excep != NULL) { 1285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if DVM_SHOW_EXCEPTION >= 2 1286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGD("NOTE: loadClass '%s' %p threw exception %s\n", 1287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dotName, loader, excep->clazz->descriptor); 1288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc(excep, self); 1290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(self); 1291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowChainedExceptionWithClassMessage( 1292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/NoClassDefFoundError;", descriptor, excep); 1293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(excep, self); 1294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1296d0f0ee6929af654a42b290e6886d4d9d19ae9ee8Andy McFadden } else if (clazz == NULL) { 1297d0f0ee6929af654a42b290e6886d4d9d19ae9ee8Andy McFadden LOGW("ClassLoader returned NULL w/o exception pending\n"); 1298d0f0ee6929af654a42b290e6886d4d9d19ae9ee8Andy McFadden dvmThrowException("Ljava/lang/NullPointerException;", 1299d0f0ee6929af654a42b290e6886d4d9d19ae9ee8Andy McFadden "ClassLoader returned null"); 1300d0f0ee6929af654a42b290e6886d4d9d19ae9ee8Andy McFadden goto bail; 1301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 13030477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden /* not adding clazz to tracked-alloc list, because it's a ClassObject */ 13040477139e2b3e614c6bc20d15c43e5e9b28ae9c13Andy McFadden 1305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddInitiatingLoader(clazz, loader); 1306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- Successfully loaded %s %p (thisldr=%p clazz=%p)\n", 1308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, clazz->classLoader, loader, clazz); 1309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 1311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*)nameObj, NULL); 1312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(dotName); 1313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load the named class (by descriptor) from the specified DEX file. 1318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Used by class loaders to instantiate a class object from a 1319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * VM-managed DEX. 1320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmDefineClass(DvmDex* pDvmDex, const char* descriptor, 1322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* classLoader) 1323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pDvmDex != NULL); 1325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassNoInit(descriptor, classLoader, pDvmDex); 1327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), scanning through the 1332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bootclasspath if it hasn't already been loaded. 1333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "descriptor" looks like "Landroid/debug/Stuff;". 1335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Uses NULL as the defining class loader. 1337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindSystemClass(const char* descriptor) 1339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindSystemClassNoInit(descriptor); 1343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz != NULL && clazz->status < CLASS_INITIALIZED) { 1344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* initialize class */ 1345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz)) { 1346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init failed; leave it in the list, marked as bad */ 1347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 1348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_ERROR); 1349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor), searching for it in the 1358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bootclasspath. 1359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, this returns NULL with an exception raised. 1361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindSystemClassNoInit(const char* descriptor) 1363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return findClassNoInit(descriptor, NULL, NULL); 1365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the named class (by descriptor). If it's not already loaded, 1369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we load it and link it, but don't execute <clinit>. (The VM has 1370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * specific limitations on which events can cause initialization.) 1371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If "pDexFile" is NULL, we will search the bootclasspath for an entry. 1373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, this returns NULL with an exception raised. 1375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: we need to return an indication of whether we loaded the class or 1377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * used an existing definition. If somebody deliberately tries to load a 1378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class twice in the same class loader, they should get a LinkageError, 1379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but inadvertent simultaneous class references should "just work". 1380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* findClassNoInit(const char* descriptor, Object* loader, 1382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DvmDex* pDvmDex) 1383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 1385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 1386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool profilerNotified = false; 1387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (loader != NULL) { 1389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("#### findClassNoInit(%s,%p,%p)\n", descriptor, loader, 1390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex->pDexFile); 1391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't expect an exception to be raised at this point. The 1395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exception handling code is good about managing this. This *can* 1396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * happen if a JNI lookup fails and the JNI code doesn't do any 1397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * error checking before doing another class lookup, so we may just 1398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * want to clear this and restore it on exit. If we don't, some kinds 1399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of failures can't be detected without rearranging other stuff. 1400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Most often when we hit this situation it means that something is 1402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * broken in the VM or in JNI code, so I'm keeping it in place (and 1403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * making it an informative abort rather than an assert). 1404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 1406504e9f4441c3a013047931d24a978523a26fde2dAndy McFadden LOGE("Class lookup %s attempted while exception %s pending\n", 1407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, dvmGetException(self)->clazz->descriptor); 1408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDumpAllThreads(false); 1409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 1410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, true); 1413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) { 1414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 1415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepBegin(); 1417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project profilerNotified = true; 1418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u8 startTime = dvmGetThreadCpuTimeNsec(); 1421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDvmDex == NULL) { 1424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader == NULL); /* shouldn't be here otherwise */ 1425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDvmDex = searchBootPathForClass(descriptor, &pClassDef); 1426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDvmDex->pDexFile, descriptor); 1428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDvmDex == NULL || pClassDef == NULL) { 14317fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden if (gDvm.noClassDefFoundErrorObj != NULL) { 14327fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden /* usual case -- use prefabricated object */ 14337fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden dvmSetException(self, gDvm.noClassDefFoundErrorObj); 14347fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden } else { 14357fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden /* dexopt case -- can't guarantee prefab (core.jar) */ 14367fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden dvmThrowExceptionWithClassMessage( 14377fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden "Ljava/lang/NoClassDefFoundError;", descriptor); 14387fc3ce8f0223a90006ad2c431a43b0bc841ee3c2Andy McFadden } 1439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* found a match, try to load it */ 1443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = loadClassFromDex(pDvmDex, pClassDef, loader); 1444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 1445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* class was found but had issues */ 1446a0b525d50b8b514e1e8f5c9b2852ce056a5eb89dAndy McFadden if (clazz != NULL) { 1447a0b525d50b8b514e1e8f5c9b2852ce056a5eb89dAndy McFadden dvmFreeClassInnards(clazz); 1448a0b525d50b8b514e1e8f5c9b2852ce056a5eb89dAndy McFadden dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1449a0b525d50b8b514e1e8f5c9b2852ce056a5eb89dAndy McFadden } 1450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Lock the class while we link it so other threads must wait for us 1455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to finish. Set the "initThreadId" so we can identify recursive 145610cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * invocation. (Note all accesses to initThreadId here are 145710cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * guarded by the class object's lock.) 1458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 1460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = self->threadId; 1461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add to hash table so lookups succeed. 1464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * [Are circular references possible when linking a class?] 1466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->classLoader == loader); 1468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmAddClassToHash(clazz)) { 1469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Another thread must have loaded the class after we 1471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * started but before we finished. Discard what we've 1472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * done and leave some hints for the GC. 1473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (Yes, this happens.) 1475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGW("WOW: somebody loaded %s simultaneously\n", descriptor); 1477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = 0; 1478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Let the GC free the class. 1481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1482a0b525d50b8b514e1e8f5c9b2852ce056a5eb89dAndy McFadden dvmFreeClassInnards(clazz); 1483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Grab the winning class. 1486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmLookupClass(descriptor, loader, true); 1488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL); 1489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto got_class; 1490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc((Object*) clazz, NULL); 1492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoadWithTime('>', clazz, startTime); 1495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Prepare and resolve. 1498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1499c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (!dvmLinkClass(clazz)) { 1500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 1501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Make note of the error and clean up the class. 1503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project removeClassFromHash(clazz); 1505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 1506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFreeClassInnards(clazz); 1507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Let any waiters know. 1509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = 0; 1511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 1512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOG(LOG_INFO, "DVMLINK FAILED FOR CLASS ", "%s in %s\n", 1516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, get_process_name()); 1517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: It would probably be better to use a new type code here (instead of '<') to 1520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * indicate the failure. This change would require a matching change in the parser 1521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and analysis code in frameworks/base/tools/preload. 1522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('<', clazz); 1524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.optimizing) { 1527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* happens with "external" libs */ 1528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Link of class '%s' failed\n", descriptor); 1529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Link of class '%s' failed\n", descriptor); 1531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 1535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add class stats to global counters. 1539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: these should probably be atomic ops. 1541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numLoadedClasses++; 1543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredMethods += 1544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount + clazz->directMethodCount; 1545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredInstFields += clazz->ifieldCount; 1546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredStaticFields += clazz->sfieldCount; 1547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache pointers to basic classes. We want to use these in 1550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * various places, and it's easiest to initialize them on first 1551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * use rather than trying to force them to initialize (startup 1552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ordering makes it weird). 1553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangObject == NULL && 1555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project strcmp(descriptor, "Ljava/lang/Object;") == 0) 1556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* It should be impossible to get here with anything 1558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but the bootclasspath loader. 1559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(loader == NULL); 1561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangObject = clazz; 1562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 1565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('<', clazz); 1566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 1567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectgot_class: 1570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsClassLinked(clazz) && clazz->status != CLASS_ERROR) { 1571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can race with other threads for class linking. We should 1573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * never get here recursively; doing so indicates that two 1574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * classes have circular dependencies. 1575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * One exception: we force discovery of java.lang.Class in 1577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmLinkClass(), and Class has Object as its superclass. So 1578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * if the first thing we ever load is Object, we will init 1579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Object->Class->Object. The easiest way to avoid this is to 1580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ensure that Object is never the first thing we look up, so 1581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we get Foo->Class->Object instead. 1582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 1584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsClassLinked(clazz) && 1585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId == self->threadId) 1586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 1587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Recursive link on class %s\n", clazz->descriptor); 1588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage( 1590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ClassCircularityError;", clazz->descriptor); 1591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("WAITING for '%s' (owner=%d)\n", 1595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->initThreadId); 1596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (!dvmIsClassLinked(clazz) && clazz->status != CLASS_ERROR) { 1597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectWait(self, (Object*) clazz, 0, 0, false); 1598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 1600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 1602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Somebody else tried to load this and failed. We need to raise 1604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception and report failure. 1605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 1607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = NULL; 1608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 1609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* check some invariants */ 1613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmIsClassLinked(clazz)); 1614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.classJavaLangClass != NULL); 1615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->obj.clazz == gDvm.classJavaLangClass); 16169ef5ca666a214f2a96b16e0830e19d37742ab8caAndy McFadden assert(clazz == gDvm.classJavaLangObject || clazz->super != NULL); 1617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(clazz)) { 1618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("class=%s vtableCount=%d, virtualMeth=%d\n", 1619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->vtableCount, 1620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->virtualMethodCount); 1621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtableCount >= clazz->virtualMethodCount); 1622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 1625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (profilerNotified) 1626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMethodTraceClassPrepEnd(); 1627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != NULL || dvmCheckException(self)); 1628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return clazz; 1629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Helper for loadClassFromDex, which takes a DexClassDataHeader and 1633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * encoded data pointer in addition to the other arguments. 1634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex0(DvmDex* pDvmDex, 1636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, const DexClassDataHeader* pHeader, 1637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u1* pEncodedData, Object* classLoader) 1638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* newClass = NULL; 1640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFile* pDexFile; 1641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 1642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 1643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = pDvmDex->pDexFile; 1645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexGetClassDescriptor(pDexFile, pClassDef); 1646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Make sure the aren't any "bonus" flags set, since we use them for 1649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * runtime state. 1650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((pClassDef->accessFlags & ~EXPECTED_FILE_FLAGS) != 0) { 1652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Invalid file flags in class %s: %04x\n", 1653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor, pClassDef->accessFlags); 1654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Allocate storage for the class object on the GC heap, so that other 1659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * objects can have references to it. We bypass the usual mechanism 1660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (allocObject), because we don't have all the bits and pieces yet. 1661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note that we assume that java.lang.Class does not override 1663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finalize(). 1664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1665c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* TODO: Can there be fewer special checks in the usual path? */ 1666c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(descriptor != NULL); 1667c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (classLoader == NULL && 1668c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes strcmp(descriptor, "Ljava/lang/Class;") == 0) { 1669c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(gDvm.classJavaLangClass != NULL); 1670c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes newClass = gDvm.classJavaLangClass; 1671c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } else { 1672c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes size_t size = classObjectSize(pHeader->staticFieldsSize); 1673c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes newClass = (ClassObject*) dvmMalloc(size, ALLOC_DEFAULT); 1674c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 1675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newClass == NULL) 1676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 1677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1678c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes DVM_OBJECT_INIT(&newClass->obj, gDvm.classJavaLangClass); 1679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetClassSerialNumber(newClass); 1680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->descriptor = descriptor; 1681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(newClass->descriptorAlloc == NULL); 1682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->accessFlags = pClassDef->accessFlags; 1683364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes dvmSetFieldObject((Object *)newClass, 1684364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes offsetof(ClassObject, classLoader), 1685364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes (Object *)classLoader); 1686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->pDvmDex = pDvmDex; 1687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->primitiveType = PRIM_NOT; 1688c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes newClass->status = CLASS_IDX; 1689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Stuff the superclass index into the object pointer field. The linker 1692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pulls it out and replaces it with a resolved ClassObject pointer. 1693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm doing it this way (rather than having a dedicated superclassIdx 1694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field) to save a few bytes of overhead per class. 1695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * newClass->super is not traversed or freed by dvmFreeClassInnards, so 1697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this is safe. 1698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1699c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(sizeof(u4) == sizeof(ClassObject*)); /* 32-bit check */ 1700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->super = (ClassObject*) pClassDef->superclassIdx; 1701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 1703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Stuff class reference indices into the pointer fields. 1704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The elements of newClass->interfaces are not traversed or freed by 1706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmFreeClassInnards, so this is GC-safe. 1707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexTypeList* pInterfacesList; 1709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pInterfacesList = dexGetInterfacesList(pDexFile, pClassDef); 1710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pInterfacesList != NULL) { 1711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaceCount = pInterfacesList->size; 1712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaces = (ClassObject**) dvmLinearAlloc(classLoader, 1713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaceCount * sizeof(ClassObject*)); 1714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < newClass->interfaceCount; i++) { 1716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexTypeItem* pType = dexGetTypeItem(pInterfacesList, i); 1717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->interfaces[i] = (ClassObject*)(u4) pType->typeIdx; 1718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->interfaces); 1720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* load field definitions */ 1723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 172503aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * Over-allocate the class object and append static field info 172603aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * onto the end. It's fixed-size and known at alloc time. This 172703aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * seems to increase zygote sharing. Heap compaction will have to 172803aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * be careful if it ever tries to move ClassObject instances, 172903aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * because we pass Field pointers around internally. But at least 173003aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * now these Field pointers are in the object heap. 1731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->staticFieldsSize != 0) { 1734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* static fields stay on system heap; field data isn't "write once" */ 1735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->staticFieldsSize; 1736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexField field; 1738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->sfieldCount = count; 1740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataField(&pEncodedData, &field, &lastIndex); 1742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadSFieldFromDex(newClass, &field, &newClass->sfields[i]); 1743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->instanceFieldsSize != 0) { 1747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->instanceFieldsSize; 1748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexField field; 1750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->ifieldCount = count; 1752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->ifields = (InstField*) dvmLinearAlloc(classLoader, 1753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(InstField)); 1754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataField(&pEncodedData, &field, &lastIndex); 1756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadIFieldFromDex(newClass, &field, &newClass->ifields[i]); 1757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->ifields); 1759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 176199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* 176299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * Load method definitions. We do this in two batches, direct then 176399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * virtual. 176499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * 176599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * If register maps have already been generated for this class, and 176699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * precise GC is enabled, we pull out pointers to them. We know that 176799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * they were streamed to the DEX file in the same order in which the 176899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * methods appear. 176999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * 177099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * If the class wasn't pre-verified, the maps will be generated when 177199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * the class is verified during class initialization. 177299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project */ 177399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project u4 classDefIdx = dexGetIndexForClassDef(pDexFile, pClassDef); 177499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project const void* classMapData; 177599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project u4 numMethods; 177699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project 177799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (gDvm.preciseGc) { 177899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project classMapData = 1779d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden dvmRegisterMapGetClassData(pDexFile, classDefIdx, &numMethods); 178099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project 178199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* sanity check */ 178299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (classMapData != NULL && 178399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project pHeader->directMethodsSize + pHeader->virtualMethodsSize != numMethods) 178499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project { 178599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project LOGE("ERROR: in %s, direct=%d virtual=%d, maps have %d\n", 178699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->descriptor, pHeader->directMethodsSize, 178799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project pHeader->virtualMethodsSize, numMethods); 178899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert(false); 178999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project classMapData = NULL; /* abandon */ 179099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 179199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } else { 179299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project classMapData = NULL; 179399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 1794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->directMethodsSize != 0) { 1796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->directMethodsSize; 1797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexMethod method; 1799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->directMethodCount = count; 1801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->directMethods = (Method*) dvmLinearAlloc(classLoader, 1802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(Method)); 1803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataMethod(&pEncodedData, &method, &lastIndex); 1805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadMethodFromDex(newClass, &method, &newClass->directMethods[i]); 180699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (classMapData != NULL) { 1807d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden const RegisterMap* pMap = dvmRegisterMapGetNext(&classMapData); 1808d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden if (dvmRegisterMapGetFormat(pMap) != kRegMapFormatNone) { 180999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->directMethods[i].registerMap = pMap; 181099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* TODO: add rigorous checks */ 181199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert((newClass->directMethods[i].registersSize+7) / 8 == 181299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->directMethods[i].registerMap->regWidth); 181399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 181499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 1815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->directMethods); 1817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pHeader->virtualMethodsSize != 0) { 1820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = (int) pHeader->virtualMethodsSize; 1821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 lastIndex = 0; 1822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexMethod method; 1823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->virtualMethodCount = count; 1825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->virtualMethods = (Method*) dvmLinearAlloc(classLoader, 1826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count * sizeof(Method)); 1827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 1828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataMethod(&pEncodedData, &method, &lastIndex); 1829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loadMethodFromDex(newClass, &method, &newClass->virtualMethods[i]); 183099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (classMapData != NULL) { 1831d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden const RegisterMap* pMap = dvmRegisterMapGetNext(&classMapData); 1832d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden if (dvmRegisterMapGetFormat(pMap) != kRegMapFormatNone) { 183399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->virtualMethods[i].registerMap = pMap; 183499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* TODO: add rigorous checks */ 183599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert((newClass->virtualMethods[i].registersSize+7) / 8 == 183699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project newClass->virtualMethods[i].registerMap->regWidth); 183799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 183899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 1839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(classLoader, newClass->virtualMethods); 1841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newClass->sourceFile = dexGetSourceFile(pDexFile, pClassDef); 1844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* caller must call dvmReleaseTrackedAlloc */ 1846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return newClass; 1847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Try to load the indicated class from the specified DEX file. 1851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This is effectively loadClass()+defineClass() for a DexClassDef. The 1853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loading was largely done when we crunched through the DEX. 1854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns NULL on failure. If we locate the class but encounter an error 1856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * while processing it, an appropriate exception is thrown. 1857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic ClassObject* loadClassFromDex(DvmDex* pDvmDex, 1859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef, Object* classLoader) 1860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result; 1862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexClassDataHeader header; 1863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u1* pEncodedData; 1864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFile* pDexFile; 1865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((pDvmDex != NULL) && (pClassDef != NULL)); 1867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = pDvmDex->pDexFile; 1868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) { 1870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: loading '%s'...\n", 1871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexGetClassDescriptor(pDexFile, pClassDef)); 1872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pEncodedData = dexGetClassData(pDexFile, pClassDef); 1875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pEncodedData != NULL) { 1877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexReadClassDataHeader(&pEncodedData, &header); 1878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Provide an all-zeroes header for the rest of the loading. 1880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memset(&header, 0, sizeof(header)); 1881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = loadClassFromDex0(pDvmDex, pClassDef, &header, pEncodedData, 1884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project classLoader); 1885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass && (result != NULL)) { 1887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("[Loaded %s from DEX %p (cl=%p)]\n", 1888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result->descriptor, pDvmDex, classLoader); 1889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 1892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 1893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 1895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free anything in a ClassObject that was allocated on the system heap. 1896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The ClassObject itself is allocated on the GC heap, so we leave it for 1898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the garbage collector. 1899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: this may be called with a partially-constructed object. 1901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: there is no particular ordering imposed, so don't go poking at 1902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclasses. 1903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmFreeClassInnards(ClassObject* clazz) 1905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 1906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project void *tp; 1907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 1908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) 1910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 1911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1912c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz->obj.clazz == gDvm.classJavaLangClass); 1913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Guarantee that dvmFreeClassInnards can be called on a given 1915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class multiple times by clearing things out as we free them. 1916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't make any attempt at real atomicity here; higher 1917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * levels need to make sure that no two threads can free the 1918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * same ClassObject at the same time. 1919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: maybe just make it so the GC will never free the 1921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * innards of an already-freed class. 1922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 1923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: this #define isn't MT-safe -- the compiler could rearrange it. 1924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define NULL_AND_FREE(p) \ 1926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { \ 1927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((p) != NULL) { \ 1928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tp = (p); \ 1929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (p) = NULL; \ 1930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(tp); \ 1931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } \ 1932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } while (0) 1933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#define NULL_AND_LINEAR_FREE(p) \ 1934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project do { \ 1935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((p) != NULL) { \ 1936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tp = (p); \ 1937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (p) = NULL; \ 1938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, tp); \ 1939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } \ 1940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } while (0) 1941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* arrays just point at Object's vtable; don't free vtable in this case. 1943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 1944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = -1; 194533a192e2096cff25029ae339de84d33a443e7c8eBarry Hayes if (clazz->vtable == gDvm.classJavaLangObject->vtable) { 1946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = NULL; 1947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 1948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->vtable); 1949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor = NULL; 1952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_FREE(clazz->descriptorAlloc); 1953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->directMethods != NULL) { 1955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *directMethods = clazz->directMethods; 1956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int directMethodCount = clazz->directMethodCount; 1957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->directMethods = NULL; 1958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->directMethodCount = -1; 1959b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadWrite(clazz->classLoader, directMethods); 1960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < directMethodCount; i++) { 1961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeMethodInnards(&directMethods[i]); 1962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1963b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadOnly(clazz->classLoader, directMethods); 1964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, directMethods); 1965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->virtualMethods != NULL) { 1967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *virtualMethods = clazz->virtualMethods; 1968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int virtualMethodCount = clazz->virtualMethodCount; 1969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount = -1; 1970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods = NULL; 1971b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadWrite(clazz->classLoader, virtualMethods); 1972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < virtualMethodCount; i++) { 1973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project freeMethodInnards(&virtualMethods[i]); 1974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1975b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadOnly(clazz->classLoader, virtualMethods); 1976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, virtualMethods); 1977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 1978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 19792c98747b403970ef4b3352e271633f93935b9825Barry Hayes InitiatingLoaderList *loaderList = dvmGetInitiatingLoaderList(clazz); 19802c98747b403970ef4b3352e271633f93935b9825Barry Hayes loaderList->initiatingLoaderCount = -1; 19812c98747b403970ef4b3352e271633f93935b9825Barry Hayes NULL_AND_FREE(loaderList->initiatingLoaders); 1982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->interfaceCount = -1; 1984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->interfaces); 1985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftableCount = -1; 1987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->iftable); 1988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPoolCount = -1; 1990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->ifviPool); 1991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->sfieldCount = -1; 199303aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes /* The sfields are attached to the ClassObject, and will be freed 199403aa70ae413c6c5fb2ee4424afd30608bfb465eeBarry Hayes * with it. */ 1995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldCount = -1; 1997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project NULL_AND_LINEAR_FREE(clazz->ifields); 1998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#undef NULL_AND_FREE 2000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#undef NULL_AND_LINEAR_FREE 2001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Free anything in a Method that was allocated on the system heap. 200599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * 200699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * The containing class is largely torn down by this point. 2007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void freeMethodInnards(Method* meth) 2009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if 0 2011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->exceptions); 2012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->lines); 2013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(meth->locals); 2014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 201599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project 201699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /* 201799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * Some register maps are allocated on the heap, either because of late 201899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * verification or because we're caching an uncompressed form. 201999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project */ 202099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project const RegisterMap* pMap = meth->registerMap; 2021d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden if (pMap != NULL && dvmRegisterMapGetOnHeap(pMap)) { 202299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project dvmFreeRegisterMap((RegisterMap*) pMap); 202399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project meth->registerMap = NULL; 202499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 2025b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2026b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden /* 2027b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * We may have copied the instructions. 2028b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden */ 2029b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden if (IS_METHOD_FLAG_SET(meth, METHOD_ISWRITABLE)) { 2030b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* methodDexCode = (DexCode*) dvmGetMethodCode(meth); 2031b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearFree(meth->clazz->classLoader, methodDexCode); 2032b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden } 2033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Clone a Method, making new copies of anything that will be freed up 203799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * by freeMethodInnards(). This is used for "miranda" methods. 2038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void cloneMethod(Method* dst, const Method* src) 2040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 204199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project if (src->registerMap != NULL) { 204299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project LOGE("GLITCH: only expected abstract methods here\n"); 204399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project LOGE(" cloning %s.%s\n", src->clazz->descriptor, src->name); 204499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project dvmAbort(); 204599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project } 2046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(dst, src, sizeof(Method)); 2047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pull the interesting pieces out of a DexMethod. 2051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The DEX file isn't going anywhere, so we don't need to make copies of 2053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the code area. 2054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadMethodFromDex(ClassObject* clazz, const DexMethod* pDexMethod, 2056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth) 2057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexMethodId* pMethodId; 2060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexCode* pDexCode; 2061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pMethodId = dexGetMethodId(pDexFile, pDexMethod->methodIdx); 2063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name = dexStringById(pDexFile, pMethodId->nameIdx); 2065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexProtoSetFromMethodId(&meth->prototype, pDexFile, pMethodId); 2066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->shorty = dexProtoGetShorty(&meth->prototype); 2067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags = pDexMethod->accessFlags; 2068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->clazz = clazz; 2069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->jniArgInfo = 0; 2070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareNameDescriptorAndMethod("finalize", "()V", meth) == 0) { 2072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexCode = dexGetCode(pDexFile, pDexMethod); 2076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pDexCode != NULL) { 2077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* integer constants, copy over for faster access */ 2078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->registersSize = pDexCode->registersSize; 2079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->insSize = pDexCode->insSize; 2080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->outsSize = pDexCode->outsSize; 2081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* pointer to code area */ 2083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->insns = pDexCode->insns; 2084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We don't have a DexCode block, but we still want to know how 2087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * much space is needed for the arguments (so we don't have to 2088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compute it later). We also take this opportunity to compute 2089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * JNI argument info. 2090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We do this for abstract methods as well, because we want to 2092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be able to substitute our exception-throwing "stub" in. 2093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int argsSize = dvmComputeMethodArgsSize(meth); 2095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsStaticMethod(meth)) 2096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project argsSize++; 2097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->registersSize = meth->insSize = argsSize; 2098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->outsSize == 0); 2099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->insns == NULL); 2100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsNativeMethod(meth)) { 2102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc = dvmResolveNativeMethod; 2103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->jniArgInfo = computeJniArgInfo(&meth->prototype); 2104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 210896516932f1557d8f48a8b2dbbb885af01a11ef6eAndy McFadden#if 0 /* replaced with private/read-write mapping */ 2109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2110b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * We usually map bytecode directly out of the DEX file, which is mapped 2111b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * shared read-only. If we want to be able to modify it, we have to make 2112b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * a new copy. 2113b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * 2114b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * Once copied, the code will be in the LinearAlloc region, which may be 2115b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * marked read-only. 2116b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * 2117b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * The bytecode instructions are embedded inside a DexCode structure, so we 2118b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * need to copy all of that. (The dvmGetMethodCode function backs up the 2119b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * instruction pointer to find the start of the DexCode.) 2120b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden */ 2121b51ea11c70602918c42764bfafe92a997d3b1803Andy McFaddenvoid dvmMakeCodeReadWrite(Method* meth) 2122b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden{ 2123b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* methodDexCode = (DexCode*) dvmGetMethodCode(meth); 2124b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2125b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden if (IS_METHOD_FLAG_SET(meth, METHOD_ISWRITABLE)) { 2126b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadWrite(meth->clazz->classLoader, methodDexCode); 2127b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden return; 2128b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden } 2129b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2130b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden assert(!dvmIsNativeMethod(meth) && !dvmIsAbstractMethod(meth)); 2131b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2132b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden size_t dexCodeSize = dexGetDexCodeSize(methodDexCode); 2133b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden LOGD("Making a copy of %s.%s code (%d bytes)\n", 2134b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden meth->clazz->descriptor, meth->name, dexCodeSize); 2135b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2136b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* newCode = 2137b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden (DexCode*) dvmLinearAlloc(meth->clazz->classLoader, dexCodeSize); 2138b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden memcpy(newCode, methodDexCode, dexCodeSize); 2139b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2140b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden meth->insns = newCode->insns; 2141b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden SET_METHOD_FLAG(meth, METHOD_ISWRITABLE); 2142b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden} 2143b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2144b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden/* 2145b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * Mark the bytecode read-only. 2146b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * 2147b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * If the contents of the DexCode haven't actually changed, we could revert 2148b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden * to the original shared page. 2149b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden */ 2150b51ea11c70602918c42764bfafe92a997d3b1803Andy McFaddenvoid dvmMakeCodeReadOnly(Method* meth) 2151b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden{ 2152b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden DexCode* methodDexCode = (DexCode*) dvmGetMethodCode(meth); 2153b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden LOGV("+++ marking %p read-only\n", methodDexCode); 2154b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden dvmLinearReadOnly(meth->clazz->classLoader, methodDexCode); 2155b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden} 215696516932f1557d8f48a8b2dbbb885af01a11ef6eAndy McFadden#endif 2157b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2158b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden 2159b51ea11c70602918c42764bfafe92a997d3b1803Andy McFadden/* 2160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * jniArgInfo (32-bit int) layout: 2161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * SRRRHHHH HHHHHHHH HHHHHHHH HHHHHHHH 2162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * S - if set, do things the hard way (scan the signature) 2164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * R - return-type enumeration 2165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * H - target-specific hints 2166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This info is used at invocation time by dvmPlatformInvoke. In most 2168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * cases, the target-specific hints allow dvmPlatformInvoke to avoid 2169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * having to fully parse the signature. 2170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The return-type bits are always set, even if target-specific hint bits 2172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * are unavailable. 2173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int computeJniArgInfo(const DexProto* proto) 2175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* sig = dexProtoGetShorty(proto); 2177e3c01dac83e6eea7f82fe81ed89cfbdd9791dbc9Carl Shapiro int returnType, jniArgInfo; 2178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 hints; 2179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* The first shorty character is the return type. */ 2181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (*(sig++)) { 2182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'V': 2183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_VOID; 2184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'F': 2186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_FLOAT; 2187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'D': 2189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_DOUBLE; 2190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'J': 2192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_S8; 2193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2194e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee case 'Z': 2195e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee case 'B': 2196e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee returnType = DALVIK_JNI_RETURN_S1; 2197e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee break; 2198e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee case 'C': 2199e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee returnType = DALVIK_JNI_RETURN_U2; 2200e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee break; 2201e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee case 'S': 2202e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee returnType = DALVIK_JNI_RETURN_S2; 2203e2557513420f6be2d70c19a4d826731174c828d1Bill Buzbee break; 2204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: 2205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project returnType = DALVIK_JNI_RETURN_S4; 2206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project jniArgInfo = returnType << DALVIK_JNI_RETURN_SHIFT; 2210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project hints = dvmPlatformInvokeHints(proto); 2212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (hints & DALVIK_JNI_NO_ARG_INFO) { 2214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project jniArgInfo |= DALVIK_JNI_NO_ARG_INFO; 2215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((hints & DALVIK_JNI_RETURN_MASK) == 0); 2217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project jniArgInfo |= hints; 2218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return jniArgInfo; 2221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load information about a static field. 2225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This also "prepares" static fields by initializing them 2227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to their "standard default values". 2228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadSFieldFromDex(ClassObject* clazz, 2230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexSField, StaticField* sfield) 2231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFieldId* pFieldId; 2234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFieldId = dexGetFieldId(pDexFile, pDexSField->fieldIdx); 2236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.clazz = clazz; 2238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.name = dexStringById(pDexFile, pFieldId->nameIdx); 2239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.signature = dexStringByTypeIdx(pDexFile, pFieldId->typeIdx); 2240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.accessFlags = pDexSField->accessFlags; 2241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Static object field values are set to "standard default values" 2243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (null or 0) until the class is initialized. We delay loading 2244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * constant values from the class until that time. 2245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //sfield->value.j = 0; 2247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(sfield->value.j == 0LL); // cleared earlier with calloc 2248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef PROFILE_FIELD_ACCESS 2250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sfield->field.gets = sfield->field.puts = 0; 2251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Load information about an instance field. 2256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void loadIFieldFromDex(ClassObject* clazz, 2258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexField* pDexIField, InstField* ifield) 2259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2260f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexFieldId* pFieldId; 2262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2263f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pFieldId = dexGetFieldId(pDexFile, pDexIField->fieldIdx); 2264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.clazz = clazz; 2266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.name = dexStringById(pDexFile, pFieldId->nameIdx); 2267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.signature = dexStringByTypeIdx(pDexFile, pFieldId->typeIdx); 2268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.accessFlags = pDexIField->accessFlags; 2269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifndef NDEBUG 2270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(ifield->byteOffset == 0); // cleared earlier with calloc 2271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->byteOffset = -1; // make it obvious if we fail to set later 2272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef PROFILE_FIELD_ACCESS 2275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifield->field.gets = ifield->field.puts = 0; 2276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 2277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache java.lang.ref.Reference fields and methods. 2281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 22826daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayesstatic bool precacheReferenceOffsets(ClassObject* clazz) 2283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method *meth; 2285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We trick the GC object scanner by not counting 2288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java.lang.ref.Reference.referent as an object 2289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field. It will get explicitly scanned as part 2290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of the reference-walking process. 2291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find the object field named "referent" and put it 2293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * just after the list of object reference fields. 2294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->ifields); 2296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldRefCount; i++) { 2297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField *pField = &clazz->ifields[i]; 2298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(pField->field.name, "referent") == 0) { 2299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int targetIndex; 2300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Swap this field with the last object field. 2302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project targetIndex = clazz->ifieldRefCount - 1; 2304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != targetIndex) { 2305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField *swapField = &clazz->ifields[targetIndex]; 2306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField tmpField; 2307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int tmpByteOffset; 2308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* It's not currently strictly necessary 2310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for the fields to be in byteOffset order, 2311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but it's more predictable that way. 2312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmpByteOffset = swapField->byteOffset; 2314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField->byteOffset = pField->byteOffset; 2315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = tmpByteOffset; 2316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tmpField = *swapField; 2318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *swapField = *pField; 2319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pField = tmpField; 2320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* One fewer object field (wink wink). 2323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount--; 2325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i--; /* don't trip "didn't find it" test if field was last */ 2326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifields); 2330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i == clazz->ifieldRefCount) { 2331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to reorder 'referent' in %s\n", clazz->descriptor); 2332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 2333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Cache pretty much everything about Reference so that 2336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we don't need to call interpreted code when clearing/enqueueing 2337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * references. This is fragile, so we'll be paranoid. 2338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangRefReference = clazz; 2340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_referent = 2342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "referent", "Ljava/lang/Object;"); 2344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_referent >= 0); 2345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_queue = 2347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "queue", "Ljava/lang/ref/ReferenceQueue;"); 2349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_queue >= 0); 2350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangRefReference_queueNext = 2352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindFieldOffset(gDvm.classJavaLangRefReference, 2353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "queueNext", "Ljava/lang/ref/Reference;"); 2354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(gDvm.offJavaLangRefReference_queueNext >= 0); 2355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 23562a6f4846b2a9e252c914e5103270fc86cc786859Carl Shapiro gDvm.offJavaLangRefReference_pendingNext = 23572a6f4846b2a9e252c914e5103270fc86cc786859Carl Shapiro dvmFindFieldOffset(gDvm.classJavaLangRefReference, 23582a6f4846b2a9e252c914e5103270fc86cc786859Carl Shapiro "pendingNext", "Ljava/lang/ref/Reference;"); 23592a6f4846b2a9e252c914e5103270fc86cc786859Carl Shapiro assert(gDvm.offJavaLangRefReference_pendingNext >= 0); 23602a6f4846b2a9e252c914e5103270fc86cc786859Carl Shapiro 2361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* enqueueInternal() is private and thus a direct method. */ 2362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = dvmFindDirectMethodByDescriptor(clazz, "enqueueInternal", "()Z"); 2363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth != NULL); 2364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.methJavaLangRefReference_enqueueInternal = meth; 2365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 2367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 23716daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * Set the bitmap of reference offsets, refOffsets, from the ifields 23726daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * list. 23736daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes */ 23746daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayesstatic void computeRefOffsets(ClassObject* clazz) 23756daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes{ 23766daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes if (clazz->super != NULL) { 23776daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes clazz->refOffsets = clazz->super->refOffsets; 23786daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes } else { 23796daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes clazz->refOffsets = 0; 23806daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes } 23816daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes /* 23826daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * If our superclass overflowed, we don't stand a chance. 23836daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes */ 23846daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes if (clazz->refOffsets != CLASS_WALK_SUPER) { 23856daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes InstField *f; 23866daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes int i; 23876daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes 23886daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes /* All of the fields that contain object references 23896daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * are guaranteed to be at the beginning of the ifields list. 23906daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes */ 23916daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes f = clazz->ifields; 23926daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes const int ifieldRefCount = clazz->ifieldRefCount; 23936daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes for (i = 0; i < ifieldRefCount; i++) { 23946daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes /* 23956daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * Note that, per the comment on struct InstField, 23966daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * f->byteOffset is the offset from the beginning of 23976daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * obj, not the offset into obj->instanceData. 23986daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes */ 23992fbe6d15ed8d266ed55fb76e97f866dbd07d5fa6Andy McFadden assert(f->byteOffset >= (int) CLASS_SMALLEST_OFFSET); 24006daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes assert((f->byteOffset & (CLASS_OFFSET_ALIGNMENT - 1)) == 0); 24016daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes if (CLASS_CAN_ENCODE_OFFSET(f->byteOffset)) { 24026daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes u4 newBit = CLASS_BIT_FROM_OFFSET(f->byteOffset); 24036daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes assert(newBit != 0); 24046daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes clazz->refOffsets |= newBit; 24056daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes } else { 24066daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes clazz->refOffsets = CLASS_WALK_SUPER; 24076daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes break; 24086daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes } 24096daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes f++; 24106daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes } 24116daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes } 24126daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes} 24136daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes 24146daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes 24156daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes/* 2416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Link (prepare and resolve). Verification is deferred until later. 2417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This converts symbolic references into pointers. It's independent of 2419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the source file format. 2420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2421c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * If clazz->status is CLASS_IDX, then clazz->super and interfaces[] are 2422c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * holding class reference indices rather than pointers. The class 2423c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * references will be resolved during link. (This is done when 2424c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * loading from DEX to avoid having to create additional storage to 2425c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * pass the indices around.) 2426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "false" with an exception pending on failure. 2428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2429c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayesbool dvmLinkClass(ClassObject* clazz) 2430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 superclassIdx = 0; 2432c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes u4 *interfaceIdxArray = NULL; 2433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool okay = false; 2434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2436c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz != NULL); 2437c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz->descriptor != NULL); 2438c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz->status == CLASS_IDX || clazz->status == CLASS_LOADED); 2439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) 2440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: linking '%s'...\n", clazz->descriptor); 2441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2442c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(gDvm.classJavaLangClass != NULL); 2443c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz->obj.clazz == gDvm.classJavaLangClass); 2444c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->classLoader == NULL && 2445c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes (strcmp(clazz->descriptor, "Ljava/lang/Class;") == 0)) 2446c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes { 2447c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (gDvm.classJavaLangClass->ifieldCount > CLASS_FIELD_SLOTS) { 2448c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGE("java.lang.Class has %d instance fields (expected at most %d)", 2449c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes gDvm.classJavaLangClass->ifieldCount, CLASS_FIELD_SLOTS); 2450c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmAbort(); 2451c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2452c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (gDvm.classJavaLangClass->sfieldCount != CLASS_SFIELD_SLOTS) { 2453c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGE("java.lang.Class has %d static fields (expected %d)", 2454c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes gDvm.classJavaLangClass->sfieldCount, CLASS_SFIELD_SLOTS); 2455c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmAbort(); 2456c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2457c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* "Resolve" the class. 2459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2460c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * At this point, clazz's reference fields may contain Dex file 2461c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * indices instead of direct object references. Proxy objects are 2462c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * an exception, and may be the only exception. We need to 2463c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * translate those indices into real references, and let the GC 2464c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * look inside this ClassObject. 2465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2466c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->status == CLASS_IDX) { 2467c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->interfaceCount > 0) { 2468c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* Copy u4 DEX idx values out of the ClassObject* array 2469c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * where we stashed them. 2470c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes */ 2471c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(sizeof(*interfaceIdxArray) == sizeof(*clazz->interfaces)); 2472c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes size_t len = clazz->interfaceCount * sizeof(*interfaceIdxArray); 2473c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes interfaceIdxArray = malloc(len); 2474c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (interfaceIdxArray == NULL) { 2475c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGW("Unable to allocate memory to link %s", clazz->descriptor); 2476c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes goto bail; 24773595a09a6fff5483f69f0f714128646c17a03216Barry Hayes } 2478c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes memcpy(interfaceIdxArray, clazz->interfaces, len); 24791145f22c92b0fb2c3bfc4de2d0d38bd54046127cAndy McFadden 24801145f22c92b0fb2c3bfc4de2d0d38bd54046127cAndy McFadden dvmLinearReadWrite(clazz->classLoader, clazz->interfaces); 2481c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes memset(clazz->interfaces, 0, len); 24821145f22c92b0fb2c3bfc4de2d0d38bd54046127cAndy McFadden dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2483c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2484c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 2485c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(sizeof(superclassIdx) == sizeof(clazz->super)); 2486c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes superclassIdx = (u4) clazz->super; 2487c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->super = NULL; 2488c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* After this line, clazz will be fair game for the GC. The 2489c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * superclass and interfaces are all NULL. 2490c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes */ 2491c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->status = CLASS_LOADED; 2492c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 2493c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (superclassIdx != kDexNoIndex) { 2494364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes ClassObject* super = dvmResolveClass(clazz, superclassIdx, false); 2495364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes if (super == NULL) { 2496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(dvmThreadSelf())); 2497c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (gDvm.optimizing) { 2498c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* happens with "external" libs */ 2499c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGV("Unable to resolve superclass of %s (%d)\n", 2500c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->descriptor, superclassIdx); 2501c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } else { 2502c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGW("Unable to resolve superclass of %s (%d)\n", 2503c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->descriptor, superclassIdx); 2504c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2507364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes dvmSetFieldObject((Object *)clazz, 2508364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes offsetof(ClassObject, super), 2509364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes (Object *)super); 2510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2512c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->interfaceCount > 0) { 2513c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* Resolve the interfaces implemented directly by this class. */ 2514c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(interfaceIdxArray != NULL); 2515c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmLinearReadWrite(clazz->classLoader, clazz->interfaces); 2516c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes for (i = 0; i < clazz->interfaceCount; i++) { 2517c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(interfaceIdxArray[i] != kDexNoIndex); 2518c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->interfaces[i] = 2519c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmResolveClass(clazz, interfaceIdxArray[i], false); 2520c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->interfaces[i] == NULL) { 2521c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes const DexFile* pDexFile = clazz->pDvmDex->pDexFile; 2522c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 2523c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(dvmCheckException(dvmThreadSelf())); 2524c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2525c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 2526c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes const char* classDescriptor; 2527c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes classDescriptor = 2528c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dexStringByTypeIdx(pDexFile, interfaceIdxArray[i]); 2529c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (gDvm.optimizing) { 2530c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* happens with "external" libs */ 2531c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGV("Failed resolving %s interface %d '%s'\n", 2532c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->descriptor, interfaceIdxArray[i], 2533c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes classDescriptor); 2534c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } else { 2535c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGI("Failed resolving %s interface %d '%s'\n", 2536c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->descriptor, interfaceIdxArray[i], 2537c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes classDescriptor); 2538c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2539c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes goto bail; 2540c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2541c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes 2542c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes /* are we allowed to implement this interface? */ 2543c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (!dvmCheckClassAccess(clazz, clazz->interfaces[i])) { 2544c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2545c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGW("Interface '%s' is not accessible to '%s'\n", 2546c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->interfaces[i]->descriptor, clazz->descriptor); 2547c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmThrowException("Ljava/lang/IllegalAccessError;", 2548c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes "interface not accessible"); 2549c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes goto bail; 2550c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2551c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes LOGVV("+++ found interface '%s'\n", 2552c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes clazz->interfaces[i]->descriptor); 2553c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2554c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmLinearReadOnly(clazz->classLoader, clazz->interfaces); 2555c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2556c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2558c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * There are now Class references visible to the GC in super and 2559c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * interfaces. 2560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2563c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * All classes have a direct superclass, except for 2564c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * java/lang/Object and primitive classes. Primitive classes are 2565c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes * are created CLASS_INITIALIZED, so won't get here. 2566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2567c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes assert(clazz->primitiveType == PRIM_NOT); 2568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, "Ljava/lang/Object;") == 0) { 2569c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->super != NULL) { 2570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* TODO: is this invariant true for all java/lang/Objects, 2571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * regardless of the class loader? For now, assume it is. 2572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/ClassFormatError;", 2574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "java.lang.Object has a superclass"); 2575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Don't finalize objects whose classes use the 2579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * default (empty) Object.finalize(). 2580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLEAR_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2583c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (clazz->super == NULL) { 2584c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes dvmThrowException("Ljava/lang/LinkageError;", 2585c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes "no superclass defined"); 2586c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes goto bail; 2587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* verify */ 2589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsFinalClass(clazz->super)) { 2590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' is final '%s'\n", 2591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IncompatibleClassChangeError;", 2593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass is final"); 2594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (dvmIsInterfaceClass(clazz->super)) { 2596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' is interface '%s'\n", 2597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IncompatibleClassChangeError;", 2599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass is an interface"); 2600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (!dvmCheckClassAccess(clazz, clazz->super)) { 2602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Superclass of '%s' (%s) is not accessible\n", 2603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->super->descriptor); 2604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IllegalAccessError;", 2605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "superclass not accessible"); 2606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Inherit finalizability from the superclass. If this 2610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class also overrides finalize(), its CLASS_ISFINALIZABLE 2611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bit will already be set. 2612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz->super, CLASS_ISFINALIZABLE)) { 2614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, CLASS_ISFINALIZABLE); 2615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* See if this class descends from java.lang.Reference 2618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and set the class flags appropriately. 2619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz->super, CLASS_ISREFERENCE)) { 2621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 superRefFlags; 2622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We've already determined the reference type of this 2624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * inheritance chain. Inherit reference-ness from the superclass. 2625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superRefFlags = GET_CLASS_FLAG_GROUP(clazz->super, 2627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISREFERENCE | 2628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISWEAKREFERENCE | 2629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISPHANTOMREFERENCE); 2630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, superRefFlags); 2631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (clazz->classLoader == NULL && 2632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super->classLoader == NULL && 2633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project strcmp(clazz->super->descriptor, 2634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/Reference;") == 0) 2635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project u4 refFlags; 2637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This class extends Reference, which means it should 2639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be one of the magic Soft/Weak/PhantomReference classes. 2640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags = CLASS_ISREFERENCE; 2642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, 2643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/SoftReference;") == 0) 2644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Only CLASS_ISREFERENCE is set for soft references. 2646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (strcmp(clazz->descriptor, 2648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/WeakReference;") == 0) 2649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags |= CLASS_ISWEAKREFERENCE; 2651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (strcmp(clazz->descriptor, 2652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ref/PhantomReference;") == 0) 2653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project refFlags |= CLASS_ISPHANTOMREFERENCE; 2655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* No-one else is allowed to inherit directly 2657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * from Reference. 2658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project//xxx is this the right exception? better than an assertion. 2660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 2661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "illegal inheritance from Reference"); 2662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* The class should not have any reference bits set yet. 2666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(GET_CLASS_FLAG_GROUP(clazz, 2668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISREFERENCE | 2669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISWEAKREFERENCE | 2670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CLASS_ISPHANTOMREFERENCE) == 0); 2671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SET_CLASS_FLAG(clazz, refFlags); 2673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Populate vtable. 2678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz)) { 2680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* no vtable; just set the method indices */ 2681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = clazz->virtualMethodCount; 2682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (count != (u2) count) { 2684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in interface '%s'\n", count, 2685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 2690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) 2692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].methodIndex = (u2) i; 2693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 2695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!createVtable(clazz)) { 2697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("failed creating vtable\n"); 2698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Populate interface method tables. Can alter the vtable. 2704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!createIftable(clazz)) 2706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Insert special-purpose "stub" method implementations. 2710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!insertMethodStubs(clazz)) 2712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compute instance field offsets and, hence, the size of the object. 2716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!computeFieldOffsets(clazz)) 2718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Cache fields and methods from java/lang/ref/Reference and 2722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java/lang/Class. This has to happen after computeFieldOffsets(). 2723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->classLoader == NULL) { 2725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, "Ljava/lang/ref/Reference;") == 0) { 2726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!precacheReferenceOffsets(clazz)) { 2727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("failed pre-caching Reference offsets\n"); 2728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/InternalError;", NULL); 2729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (clazz == gDvm.classJavaLangClass) { 2732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.offJavaLangClass_pd = dvmFindFieldOffset(clazz, "pd", 2733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/security/ProtectionDomain;"); 2734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.offJavaLangClass_pd <= 0) { 2735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("ERROR: unable to find 'pd' field in Class\n"); 2736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); /* we're not going to get much farther */ 2737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 27426daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * Compact the offsets the GC has to examine into a bitmap, if 27436daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * possible. (This has to happen after Reference.referent is 27446daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes * massaged in precacheReferenceOffsets.) 27456daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes */ 27466daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes computeRefOffsets(clazz); 27476daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes 27486daaac12e5de630749f94ff5f15e902e7b18d8e7Barry Hayes /* 2749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Done! 2750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz, CLASS_ISPREVERIFIED)) 2752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFIED; 2753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 2754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_RESOLVED; 2755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project okay = true; 2756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.verboseClass) 2757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("CLASS: linked '%s'\n", clazz->descriptor); 2758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We send CLASS_PREPARE events to the debugger from here. The 2761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * definition of "preparation" is creating the static fields for a 2762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class and initializing them to the standard default values, but not 2763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * executing any code (that comes later, during "initialization"). 2764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We did the static prep in loadSFieldFromDex() while loading the class. 2766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class has been prepared and resolved but possibly not yet verified 2768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * at this point. 2769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.debuggerActive) { 2771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmDbgPostClassPrepare(clazz); 2772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 2775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!okay) { 2776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 2777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmCheckException(dvmThreadSelf())) { 2778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/VirtualMachineError;", NULL); 2779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2781c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes if (interfaceIdxArray != NULL) { 2782c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes free(interfaceIdxArray); 2783c49db8554956f8d43eb487709bc1dccfe0496ad2Barry Hayes } 2784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return okay; 2785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create the virtual method table. 2789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The top part of the table is a copy of the table from our superclass, 2791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with our local methods overriding theirs. The bottom part of the table 2792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has any new methods we defined. 2793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createVtable(ClassObject* clazz) 2795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool result = false; 2797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int maxCount; 2798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("SUPER METHODS %d %s->%s\n", clazz->super->vtableCount, 2802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->super->descriptor); 2803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* the virtual methods we define, plus the superclass vtable size */ 2806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount = clazz->virtualMethodCount; 2807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount += clazz->super->vtableCount; 2809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* TODO: is this invariant true for all java/lang/Objects, 2811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * regardless of the class loader? For now, assume it is. 2812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(strcmp(clazz->descriptor, "Ljava/lang/Object;") == 0); 2814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGD("+++ max vmethods for '%s' is %d\n", clazz->descriptor, maxCount); 2816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Over-allocate the table, then realloc it down if necessary. So 2819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * long as we don't allocate anything in between we won't cause 2820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fragmentation, and reducing the size should be unlikely to cause 2821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a buffer copy. 2822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 2824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = (Method**) dvmLinearAlloc(clazz->classLoader, 2825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method*) * maxCount); 2826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) 2827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) { 2830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int actualCount; 2831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(clazz->vtable, clazz->super->vtable, 2833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(*(clazz->vtable)) * clazz->super->vtableCount); 2834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project actualCount = clazz->super->vtableCount; 2835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See if any of our virtual methods override the superclass. 2838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++) { 2840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* localMeth = &clazz->virtualMethods[i]; 2841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int si; 2842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (si = 0; si < clazz->super->vtableCount; si++) { 2844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* superMeth = clazz->vtable[si]; 2845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos(localMeth, superMeth) == 0) 2847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 2848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* verify */ 2849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsFinalMethod(superMeth)) { 2850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method %s.%s overrides final %s.%s\n", 2851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->clazz->descriptor, localMeth->name, 2852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superMeth->clazz->descriptor, superMeth->name); 2853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[si] = localMeth; 2856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->methodIndex = (u2) si; 2857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ override %s.%s (slot %d)\n", 2858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, localMeth->name, si); 2859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 2860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (si == clazz->super->vtableCount) { 2864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* not an override, add to end */ 2865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[actualCount] = localMeth; 2866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project localMeth->methodIndex = (u2) actualCount; 2867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project actualCount++; 2868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("+++ add method %s.%s\n", 2870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, localMeth->name); 2871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (actualCount != (u2) actualCount) { 2875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in class '%s'\n", actualCount, 2876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(actualCount <= maxCount); 2881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (actualCount < maxCount) { 2883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtable != NULL); 2884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 2885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = dvmLinearRealloc(clazz->classLoader, clazz->vtable, 2886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(*(clazz->vtable)) * actualCount); 2887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) { 2888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("vtable realloc failed\n"); 2889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("+++ reduced vtable from %d to %d\n", 2892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project maxCount, actualCount); 2893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = actualCount; 2897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 2898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* java/lang/Object case */ 2899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count = clazz->virtualMethodCount; 2900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (count != (u2) count) { 2901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Too many methods (%d) in base class '%s'\n", count, 2902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < count; i++) { 2907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[i] = &clazz->virtualMethods[i]; 2908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].methodIndex = (u2) i; 2909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount = clazz->virtualMethodCount; 2911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 2914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 2916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 2917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 2918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 2919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 2920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create and populate "iftable". 2923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The set of interfaces we support is the combination of the interfaces 2925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we implement directly and those implemented by our superclass. Each 2926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interface can have one or more "superinterfaces", which we must also 2927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * support. For speed we flatten the tree out. 2928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We might be able to speed this up when there are lots of interfaces 2930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by merge-sorting the class pointers and binary-searching when removing 2931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * duplicates. We could also drop the duplicate removal -- it's only 2932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * there to reduce the memory footprint. 2933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because of "Miranda methods", this may reallocate clazz->virtualMethods. 2935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 2936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" on success. 2937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool createIftable(ClassObject* clazz) 2939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 2940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool result = false; 2941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapIftable = false; 2942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapVtable = false; 2943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool zapIfvipool = false; 2944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int ifCount, superIfCount, idx; 2945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 2946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) 2948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superIfCount = clazz->super->iftableCount; 2949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 2950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project superIfCount = 0; 2951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount = superIfCount; 2953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount += clazz->interfaceCount; 2954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->interfaceCount; i++) 2955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount += clazz->interfaces[i]->iftableCount; 2956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: class '%s' direct w/supra=%d super=%d total=%d\n", 2958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, ifCount - superIfCount, superIfCount, ifCount); 2959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (ifCount == 0) { 2961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->iftableCount == 0); 2962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->iftable == NULL); 2963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 2964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 2965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create a table with enough space for all interfaces, and copy the 2969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass' table in. 2970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable = (InterfaceEntry*) dvmLinearAlloc(clazz->classLoader, 2972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(InterfaceEntry) * ifCount); 2973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapIftable = true; 2974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memset(clazz->iftable, 0x00, sizeof(InterfaceEntry) * ifCount); 2975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (superIfCount != 0) { 2976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memcpy(clazz->iftable, clazz->super->iftable, 2977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(InterfaceEntry) * superIfCount); 2978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 2979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 2981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Create a flattened interface hierarchy of our immediate interfaces. 2982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 2983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project idx = superIfCount; 2984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->interfaceCount; i++) { 2986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* interf; 2987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 2988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project interf = clazz->interfaces[i]; 2990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(interf != NULL); 2991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 2992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* make sure this is still an interface class */ 2993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(interf)) { 2994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Class '%s' implements non-interface '%s'\n", 2995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, interf->descriptor); 2996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage( 2997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/IncompatibleClassChangeError;", 2998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 2999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* add entry for this interface */ 3003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[idx++].clazz = interf; 3004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* add entries for the interface's superinterfaces */ 3006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < interf->iftableCount; j++) { 3007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[idx++].clazz = interf->iftable[j].clazz; 3008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(idx == ifCount); 3012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false) { 3014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Remove anything redundant from our recent additions. Note we have 3016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to traverse the recent adds when looking for duplicates, because 3017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it's possible the recent additions are self-redundant. This 3018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * reduces the memory footprint of classes with lots of inherited 3019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interfaces. 3020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (I don't know if this will cause problems later on when we're trying 3022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to find a static field. It looks like the proper search order is 3023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (1) current class, (2) interfaces implemented by current class, 3024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (3) repeat with superclass. A field implemented by an interface 3025f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * and by a superclass might come out wrong if the superclass also 3026f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implements the interface. The javac compiler will reject the 3027f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * situation as ambiguous, so the concern is somewhat artificial.) 3028f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3029f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * UPDATE: this makes ReferenceType.Interfaces difficult to implement, 3030f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because it wants to return just the interfaces declared to be 3031f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * implemented directly by the class. I'm excluding this code for now. 3032f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3033f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 3034f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 3035f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3036f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < ifCount; j++) { 3037f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i == j) 3038f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project continue; 3039f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->iftable[i].clazz == clazz->iftable[j].clazz) { 3040f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: redundant interface %s in %s\n", 3041f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->descriptor, 3042f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3043f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3044f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != ifCount-1) 3045f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project memmove(&clazz->iftable[i], &clazz->iftable[i+1], 3046f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (ifCount - i -1) * sizeof(InterfaceEntry)); 3047f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ifCount--; 3048f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i--; // adjust for i++ above 3049f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3050f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: class '%s' nodupes=%d\n", clazz->descriptor, ifCount); 3054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } // if (false) 3055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftableCount = ifCount; 3057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we're an interface, we don't need the vtable pointers, so 3060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we're done. If this class doesn't implement an interface that our 3061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass doesn't have, then we again have nothing to do. 3062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz) || superIfCount == ifCount) { 3064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmDumpClass(clazz, kDumpClassFullDetail); 3065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3068f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3069f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3070f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * When we're handling invokeinterface, we probably have an object 3071f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * whose type is an interface class rather than a concrete class. We 3072f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * need to convert the method reference into a vtable index. So, for 3073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * every entry in "iftable", we create a list of vtable indices. 3074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because our vtable encompasses the superclass vtable, we can use 3076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the vtable indices from our superclass for all of the interfaces 3077f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that weren't directly implemented by us. 3078f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3079f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Each entry in "iftable" has a pointer to the start of its set of 3080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * vtable offsets. The iftable entries in the superclass point to 3081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * storage allocated in the superclass, and the iftable entries added 3082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for this class point to storage allocated in this class. "iftable" 3083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * is flat for fast access in a class and all of its subclasses, but 3084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "ifviPool" is only created for the topmost implementor. 3085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int poolSize = 0; 3087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 3088f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3089f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Note it's valid for an interface to have no methods (e.g. 3090f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java/io/Serializable). 3091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: pool: %d from %s\n", 3093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->virtualMethodCount, 3094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].clazz->descriptor); 3095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolSize += clazz->iftable[i].clazz->virtualMethodCount; 3096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (poolSize == 0) { 3099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: didn't find any new interfaces with methods\n"); 3100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPoolCount = poolSize; 3105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifviPool = (int*) dvmLinearAlloc(clazz->classLoader, 3106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolSize * sizeof(int*)); 3107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapIfvipool = true; 3108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Fill in the vtable offsets for the interfaces that weren't part of 3111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our superclass. 3112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int poolOffset = 0; 3114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method** mirandaList = NULL; 3115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int mirandaCount = 0, mirandaAlloc = 0; 3116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = superIfCount; i < ifCount; i++) { 3118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* interface; 3119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int methIdx; 3120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray = clazz->ifviPool + poolOffset; 3122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project interface = clazz->iftable[i].clazz; 3123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project poolOffset += interface->virtualMethodCount; // end here 3124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For each method listed in the interface's method list, find the 3127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * matching method in our class's method list. We want to favor the 3128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * subclass over the superclass, which just requires walking 3129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * back from the end of the vtable. (This only matters if the 3130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * superclass defines a private method and this class redefines 3131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it -- otherwise it would use the same vtable slot. In Dalvik 3132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * those don't end up in the virtual method table, so it shouldn't 3133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * matter which direction we go. We walk it backward anyway.) 3134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Suppose we have the following arrangement: 3137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public interface MyInterface 3138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inInterface(); 3139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public abstract class MirandaAbstract implements MirandaInterface 3140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * //public abstract boolean inInterface(); // not declared! 3141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inAbstract() { stuff } // in vtable 3142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public class MirandClass extends MirandaAbstract 3143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inInterface() { stuff } 3144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * public boolean inAbstract() { stuff } // in vtable 3145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The javac compiler happily compiles MirandaAbstract even though 3147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it doesn't declare all methods from its interface. When we try 3148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to set up a vtable for MirandaAbstract, we find that we don't 3149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have an slot for inInterface. To prevent this, we synthesize 3150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * abstract method declarations in MirandaAbstract. 3151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We have to expand vtable and update some things that point at it, 3153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * so we accumulate the method list and do it all at once below. 3154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (methIdx = 0; methIdx < interface->virtualMethodCount; methIdx++) { 3156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* imeth = &interface->virtualMethods[methIdx]; 3157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 3158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGVV() { 3160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = dexProtoCopyMethodDescriptor(&imeth->prototype); 3161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: matching '%s' '%s'\n", imeth->name, desc); 3162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = clazz->vtableCount-1; j >= 0; j--) { 3166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos(imeth, clazz->vtable[j]) 3167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project == 0) 3168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 3169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("INTF: matched at %d\n", j); 3170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsPublicMethod(clazz->vtable[j])) { 3171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Implementation of %s.%s is not public\n", 3172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->vtable[j]->name); 3173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/IllegalAccessError;", 3174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "interface implementation not public"); 3175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3176f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3177f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray[methIdx] = j; 3178f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3179f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3180f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (j < 0) { 3182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGV() { 3183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = 3184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexProtoCopyMethodDescriptor(&imeth->prototype); 3185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("No match for '%s' '%s' in '%s' (creating miranda)\n", 3186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, desc, clazz->descriptor); 3187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmThrowException("Ljava/lang/RuntimeException;", "Miranda!"); 3190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //return false; 3191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaCount == mirandaAlloc) { 3193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaAlloc += 8; 3194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaList == NULL) { 3195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList = dvmLinearAlloc(clazz->classLoader, 3196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaAlloc * sizeof(Method*)); 3197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, mirandaList); 3199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList = dvmLinearRealloc(clazz->classLoader, 3200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList, mirandaAlloc * sizeof(Method*)); 3201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(mirandaList != NULL); // mem failed + we leaked 3203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * These may be redundant (e.g. method with same name and 3207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * signature declared in two interfaces implemented by the 3208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * same abstract class). We can squeeze the duplicates 3209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * out here. 3210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int mir; 3212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (mir = 0; mir < mirandaCount; mir++) { 3213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCompareMethodNamesAndProtos( 3214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mir], imeth) == 0) 3215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 3216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project IF_LOGVV() { 3217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc = dexProtoCopyMethodDescriptor( 3218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &imeth->prototype); 3219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA dupe: %s and %s %s%s\n", 3220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mir]->clazz->descriptor, 3221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->clazz->descriptor, 3222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, desc); 3223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 3224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* point the iftable at a phantom slot index */ 3230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->iftable[i].methodIndexArray[methIdx] = 3231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount + mir; 3232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA: %s points at slot %d\n", 3233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project imeth->name, clazz->vtableCount + mir); 3234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* if non-duplicate among Mirandas, add to Miranda list */ 3236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mir == mirandaCount) { 3237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("MIRANDA: holding '%s' in slot %d\n", 3238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // imeth->name, mir); 3239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[mirandaCount++] = imeth; 3240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (mirandaCount != 0) { 324668825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden static const int kManyMirandas = 150; /* arbitrary */ 3247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* newVirtualMethods; 3248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth; 3249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int oldMethodCount, oldVtableCount; 3250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < mirandaCount; i++) { 3252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA %d: %s.%s\n", i, 3253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project mirandaList[i]->clazz->descriptor, mirandaList[i]->name); 3254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 325568825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden if (mirandaCount > kManyMirandas) { 325668825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden /* 325768825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * Some obfuscators like to create an interface with a huge 325868825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * pile of methods, declare classes as implementing it, and then 325968825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * only define a couple of methods. This leads to a rather 326068825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * massive collection of Miranda methods and a lot of wasted 326168825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * space, sometimes enough to blow out the LinearAlloc cap. 326268825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden */ 326368825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden LOGD("Note: class %s has %d unimplemented (abstract) methods\n", 326468825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden clazz->descriptor, mirandaCount); 326568825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden } 3266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We found methods in one or more interfaces for which we do not 3269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have vtable entries. We have to expand our virtualMethods 3270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * table (which might be empty) to hold some new entries. 3271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->virtualMethods == NULL) { 3273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newVirtualMethods = (Method*) dvmLinearAlloc(clazz->classLoader, 3274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method) * (clazz->virtualMethodCount + mirandaCount)); 3275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newVirtualMethods = (Method*) dvmLinearRealloc(clazz->classLoader, 3278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods, 3279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method) * (clazz->virtualMethodCount + mirandaCount)); 3280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (newVirtualMethods != clazz->virtualMethods) { 3282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Table was moved in memory. We have to run through the 3284f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * vtable and fix the pointers. The vtable entries might be 3285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * pointing at superclasses, so we flip it around: run through 3286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * all locally-defined virtual methods, and fix their entries 3287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in the vtable. (This would get really messy if sub-classes 3288f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * had already been loaded.) 3289f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3290f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Reminder: clazz->virtualMethods and clazz->virtualMethodCount 3291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * hold the virtual methods declared by this class. The 3292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method's methodIndex is the vtable index, and is the same 3293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for all sub-classes (and all super classes in which it is 3294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * defined). We're messing with these because the Miranda 3295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stuff makes it look like the class actually has an abstract 3296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method declaration in it. 3297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("MIRANDA fixing vtable pointers\n"); 3299f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->vtable); 3300f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth = newVirtualMethods; 3301f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++, meth++) 3302f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[meth->methodIndex] = meth; 3303f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 3304f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3305f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3306f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldMethodCount = clazz->virtualMethodCount; 3307f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods = newVirtualMethods; 3308f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethodCount += mirandaCount; 3309f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3310f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3311f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3312f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3313f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We also have to expand the vtable. 3314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->vtable != NULL); 3316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable = (Method**) dvmLinearRealloc(clazz->classLoader, 3317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable, 3318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sizeof(Method*) * (clazz->vtableCount + mirandaCount)); 3319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->vtable == NULL) { 3320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 3321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail; 3322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project zapVtable = true; 3324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project oldVtableCount = clazz->vtableCount; 3326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtableCount += mirandaCount; 3327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Now we need to create the fake methods. We clone the abstract 3330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * method definition from the interface and then replace a few 3331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * things. 333268825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * 333368825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * The Method will be an "abstract native", with nativeFunc set to 333468825974c18f3b03330c6f4b3a0bf9eb6504d20fAndy McFadden * dvmAbstractMethodStub(). 3335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->virtualMethods + oldMethodCount; 3337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < mirandaCount; i++, meth++) { 3338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 3339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project cloneMethod(meth, mirandaList[i]); 3340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->clazz = clazz; 3341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags |= ACC_MIRANDA; 3342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->methodIndex = (u2) (oldVtableCount + i); 3343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* point the new vtable entry at the new method */ 3346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[oldVtableCount + i] = meth; 3347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, mirandaList); 3350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearFree(clazz->classLoader, mirandaList); 3351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO? 3356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Sort the interfaces by number of declared methods. All we really 3357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * want is to get the interfaces with zero methods at the end of the 3358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * list, so that when we walk through the list during invoke-interface 3359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we don't examine interfaces that can't possibly be useful. 3360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The set will usually be small, so a simple insertion sort works. 3362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We have to be careful not to change the order of two interfaces 3364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that define the same method. (Not a problem if we only move the 3365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * zero-method interfaces to the end.) 3366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * PROBLEM: 3368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we do this, we will no longer be able to identify super vs. 3369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * current class interfaces by comparing clazz->super->iftableCount. This 3370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * breaks anything that only wants to find interfaces declared directly 3371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by the class (dvmFindStaticFieldHier, ReferenceType.Interfaces, 3372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmDbgOutputAllInterfaces, etc). Need to provide a workaround. 3373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can sort just the interfaces implemented directly by this class, 3375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * but that doesn't seem like it would provide much of an advantage. I'm 3376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not sure this is worthwhile. 3377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This has been made largely obsolete by the interface cache mechanism.) 3379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //dvmDumpClass(clazz); 3382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = true; 3384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail: 3386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapIftable) 3387f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->iftable); 3388f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapVtable) 3389f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->vtable); 3390f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (zapIfvipool) 3391f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifviPool); 3392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 3393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Provide "stub" implementations for methods without them. 3398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Currently we provide an implementation for all abstract methods that 3400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * throws an AbstractMethodError exception. This allows us to avoid an 3401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * explicit check for abstract methods in every virtual call. 3402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: for Miranda methods, the method declaration is a clone of what 3404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * was found in the interface class. That copy may already have had the 3405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * function pointer filled in, so don't be surprised if it's not NULL. 3406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: this sets the "native" flag, giving us an "abstract native" method, 3408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * which is nonsensical. Need to make sure that this doesn't escape the 3409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * VM. We can either mask it out in reflection calls, or copy "native" 3410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * into the high 16 bits of accessFlags and check that internally. 3411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool insertMethodStubs(ClassObject* clazz) 3413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 3415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* meth; 3417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 3418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->virtualMethods; 3420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++, meth++) { 3421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsAbstractMethod(meth)) { 3422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->insns == NULL); 3423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(meth->nativeFunc == NULL || 3424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc == (DalvikBridgeFunc)dvmAbstractMethodStub); 3425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->accessFlags |= ACC_NATIVE; 3427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->nativeFunc = (DalvikBridgeFunc) dvmAbstractMethodStub; 3428f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3430f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 3432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Swap two instance fields. 3438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic inline void swapField(InstField* pOne, InstField* pTwo) 3440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField swap; 3442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- swap '%s' and '%s'\n", pOne->field.name, pTwo->field.name); 3444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swap = *pOne; 3445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pOne = *pTwo; 3446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *pTwo = swap; 3447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Assign instance fields to u4 slots. 3451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The top portion of the instance field area is occupied by the superclass 3453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fields, the bottom by the fields for this class. 3454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "long" and "double" fields occupy two adjacent slots. On some 3456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * architectures, 64-bit quantities must be 64-bit aligned, so we need to 3457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * arrange fields (or introduce padding) to ensure this. We assume the 3458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fields of the topmost superclass (i.e. Object) are 64-bit aligned, so 3459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we can just ensure that the offset is "even". To avoid wasting space, 3460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we want to move non-reference 32-bit fields into gaps rather than 3461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * creating pad words. 3462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In the worst case we will waste 4 bytes, but because objects are 3464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * allocated on >= 64-bit boundaries, those bytes may well be wasted anyway 3465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (assuming this is the most-derived class). 3466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pad words are not represented in the field table, so the field table 3468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * itself does not change size. 3469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The number of field slots determines the size of the object, so we 3471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * set that here too. 3472f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This function feels a little more complicated than I'd like, but it 3474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * has the property of moving the smallest possible set of fields, which 3475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * should reduce the time required to load a class. 3476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * NOTE: reference fields *must* come first, or precacheReferenceOffsets() 3478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * will break. 3479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool computeFieldOffsets(ClassObject* clazz) 3481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int fieldOffset; 3483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i, j; 3484f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3485f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->ifields); 3486f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3487f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL) 3488f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset = clazz->super->objectSize; 3489f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 3490f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset = offsetof(DataObject, instanceData); 3491f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3492f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("--- computeFieldOffsets '%s'\n", clazz->descriptor); 3493f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3494f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("OFFSETS fieldCount=%d\n", clazz->ifieldCount); 3495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("dataobj, instance: %d\n", offsetof(DataObject, instanceData)); 3496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("classobj, access: %d\n", offsetof(ClassObject, accessFlags)); 3497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGI("super=%p, fieldOffset=%d\n", clazz->super, fieldOffset); 3498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Start by moving all reference fields to the front. 3501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount = 0; 3503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 3505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') { 3509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This isn't a reference field; see if any reference fields 3510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * follow this one. If so, we'll move it to this position. 3511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (quicksort-style partitioning) 3512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* refField = &clazz->ifields[j--]; 3515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = refField->field.signature[0]; 3516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc == '[' || rc == 'L') { 3518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Here's a reference field that follows at least one 3519f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-reference field. Swap it with the current field. 3520f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (When this returns, "pField" points to the reference 3521f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field, and "refField" points to the non-ref field.) 3522f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3523f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, refField); 3524f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3525f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Fix the signature. 3526f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3527f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project c = rc; 3528f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3529f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount++; 3530f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3531f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3532f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3533f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We may or may not have swapped a field. 3534f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3535f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3536f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This is a reference field. 3537f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3538f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifieldRefCount++; 3539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3540f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we've hit the end of the reference fields, break. 3543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') 3545f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3546f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset1 '%s'=%d\n", pField->field.name,pField->byteOffset); 3550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3551f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3552f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3553f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Now we want to pack all of the double-wide fields together. If we're 3554f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not aligned, though, we want to shuffle one 32-bit field into place. 3555f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we can't find one, we'll have to pad it. 3556f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3557f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (i != clazz->ifieldCount && (fieldOffset & 0x04) != 0) { 3558f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" +++ not aligned\n"); 3559f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != 'J' && c != 'D') { 3564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The field that comes next is 32-bit, so just advance past it. 3566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3567f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(c != '[' && c != 'L'); 3568f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3569f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i++; 3571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset2 '%s'=%d\n", 3572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name, pField->byteOffset); 3573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Next field is 64-bit, so search for a 32-bit field we can 3576f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * swap into it. 3577f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool found = false; 3579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3581f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* singleField = &clazz->ifields[j--]; 3582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = singleField->field.signature[0]; 3583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc != 'J' && rc != 'D') { 3585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, singleField); 3586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //c = rc; 3587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" +++ swapped '%s' for alignment\n", 3588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name); 3589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset3 '%s'=%d\n", 3592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->field.name, pField->byteOffset); 3593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project found = true; 3594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i++; 3595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!found) { 3599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV(" +++ inserting pad field in '%s'\n", clazz->descriptor); 3600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Alignment is good, shuffle any double-wide fields forward, and 3607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finish assigning field offsets to all fields. 3608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(i == clazz->ifieldCount || (fieldOffset & 0x04) == 0); 3610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = clazz->ifieldCount - 1; 3611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for ( ; i < clazz->ifieldCount; i++) { 3612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* pField = &clazz->ifields[i]; 3613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != 'D' && c != 'J') { 3616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This isn't a double-wide field; see if any double fields 3617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * follow this one. If so, we'll move it to this position. 3618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (quicksort-style partitioning) 3619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (j > i) { 3621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField* doubleField = &clazz->ifields[j--]; 3622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char rc = doubleField->field.signature[0]; 3623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (rc == 'D' || rc == 'J') { 3625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Here's a double-wide field that follows at least one 3626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-double field. Swap it with the current field. 3627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (When this returns, "pField" points to the reference 3628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * field, and "doubleField" points to the non-double field.) 3629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project swapField(pField, doubleField); 3631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project c = rc; 3632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* We may or may not have swapped a field. 3637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* This is a double-wide field, leave it be. 3640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pField->byteOffset = fieldOffset; 3644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV(" --- offset4 '%s'=%d\n", pField->field.name,pField->byteOffset); 3645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c == 'J' || c == 'D') 3647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fieldOffset += sizeof(u4); 3648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifndef NDEBUG 3651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Make sure that all reference fields appear before 3652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * non-reference fields, and all double-wide fields are aligned. 3653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = 0; // seen non-ref 3655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 3656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InstField *pField = &clazz->ifields[i]; 3657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char c = pField->field.signature[0]; 3658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c == 'D' || c == 'J') { 3660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert((pField->byteOffset & 0x07) == 0); 3661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (c != '[' && c != 'L') { 3664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!j) { 3665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(i == clazz->ifieldRefCount); 3666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j = 1; 3667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (j) { 3669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 3670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!j) { 3673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->ifieldRefCount == clazz->ifieldCount); 3674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 3676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We map a C struct directly on top of java/lang/Class objects. Make 3679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sure we left enough room for the instance fields. 3680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz != gDvm.classJavaLangClass || (size_t)fieldOffset < 3682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project offsetof(ClassObject, instanceData) + sizeof(clazz->instanceData)); 3683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->objectSize = fieldOffset; 3685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->ifields); 3687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Throw the VM-spec-mandated error when an exception is thrown during 3692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class initialization. 3693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The safest way to do this is to call the ExceptionInInitializerError 3695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * constructor that takes a Throwable. 3696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * [Do we want to wrap it if the original is an Error rather than 3698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an Exception?] 3699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwClinitError(void) 3701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 3703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* exception; 3704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* eiie; 3705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project exception = dvmGetException(self); 3707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAddTrackedAlloc(exception, self); 3708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(self); 3709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangExceptionInInitializerError == NULL) { 3711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Always resolves to same thing -- no race condition. 3713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.classJavaLangExceptionInInitializerError = 3715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindSystemClass( 3716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Ljava/lang/ExceptionInInitializerError;"); 3717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classJavaLangExceptionInInitializerError == NULL) { 3718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to prep java/lang/ExceptionInInitializerError\n"); 3719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.methJavaLangExceptionInInitializerError_init = 3723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmFindDirectMethodByDescriptor(gDvm.classJavaLangExceptionInInitializerError, 3724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "<init>", "(Ljava/lang/Throwable;)V"); 3725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.methJavaLangExceptionInInitializerError_init == NULL) { 3726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Unable to prep java/lang/ExceptionInInitializerError\n"); 3727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project eiie = dvmAllocObject(gDvm.classJavaLangExceptionInInitializerError, 3732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ALLOC_DEFAULT); 3733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (eiie == NULL) 3734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto fail; 3735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Construct the new object, and replace the exception with it. 3738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue unused; 3740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, gDvm.methJavaLangExceptionInInitializerError_init, 3741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project eiie, &unused, exception); 3742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetException(self, eiie); 3743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(eiie, NULL); 3744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(exception, self); 3745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfail: /* restore original exception */ 3748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmSetException(self, exception); 3749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(exception, self); 3750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The class failed to initialize on a previous attempt, so we want to throw 3755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a NoClassDefFoundError (v2 2.17.5). The exception to this rule is if we 3756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * failed in verification, in which case v2 5.4.1 says we need to re-throw 3757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the previous error. 3758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void throwEarlierClassFailure(ClassObject* clazz) 3760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Rejecting re-init on previously-failed class %s v=%p\n", 3762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->verifyErrorClass); 3763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->verifyErrorClass == NULL) { 3765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage("Ljava/lang/NoClassDefFoundError;", 3766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionByClassWithClassMessage(clazz->verifyErrorClass, 3769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 3770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Initialize any static fields whose values are stored in 3775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the DEX file. This must be done during class initialization. 3776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic void initSFields(ClassObject* clazz) 3778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); /* for dvmReleaseTrackedAlloc() */ 3780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexFile* pDexFile; 3781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexClassDef* pClassDef; 3782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexEncodedArray* pValueList; 3783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project EncodedArrayIterator iterator; 3784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 3785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->sfieldCount == 0) { 3787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->pDvmDex == NULL) { 3790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* generated class; any static fields should already be set up */ 3791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("Not initializing static fields in %s\n", clazz->descriptor); 3792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pDexFile = clazz->pDvmDex->pDexFile; 3795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pClassDef = dexFindClass(pDexFile, clazz->descriptor); 3797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(pClassDef != NULL); 3798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pValueList = dexGetStaticValuesList(pDexFile, pClassDef); 3800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (pValueList == NULL) { 3801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return; 3802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmEncodedArrayIteratorInitialize(&iterator, pValueList, clazz); 3805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Iterate over the initial values array, setting the corresponding 3808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * static field for each array element. 3809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; dvmEncodedArrayIteratorHasNext(&iterator); i++) { 3812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project AnnotationValue value; 3813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool parsed = dvmEncodedArrayIteratorGetNext(&iterator, &value); 3814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StaticField* sfield = &clazz->sfields[i]; 3815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor = sfield->field.signature; 3816364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes bool isObj = false; 3817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (! parsed) { 3819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: Eventually verification should attempt to ensure 3821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that this can't happen at least due to a data integrity 3822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * problem. 3823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Static initializer parse failed for %s at index %d", 3825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, i); 3826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 3827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Verify that the value we got was of a valid type. */ 3830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (descriptor[0]) { 3832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'Z': parsed = (value.type == kDexAnnotationBoolean); break; 3833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'B': parsed = (value.type == kDexAnnotationByte); break; 3834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'C': parsed = (value.type == kDexAnnotationChar); break; 3835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'S': parsed = (value.type == kDexAnnotationShort); break; 3836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'I': parsed = (value.type == kDexAnnotationInt); break; 3837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'J': parsed = (value.type == kDexAnnotationLong); break; 3838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'F': parsed = (value.type == kDexAnnotationFloat); break; 3839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'D': parsed = (value.type == kDexAnnotationDouble); break; 3840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case '[': parsed = (value.type == kDexAnnotationNull); break; 3841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case 'L': { 3842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (value.type) { 3843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationNull: { 3844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* No need for further tests. */ 3845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationString: { 3848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = 3849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (strcmp(descriptor, "Ljava/lang/String;") == 0); 3850364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes isObj = true; 3851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case kDexAnnotationType: { 3854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = 3855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (strcmp(descriptor, "Ljava/lang/Class;") == 0); 3856364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes isObj = true; 3857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: { 3860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = false; 3861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project default: { 3867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project parsed = false; 3868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 3869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (parsed) { 3873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3874364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes * All's well, so store the value. 3875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3876364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes if (isObj) { 3877364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes dvmSetStaticFieldObject(sfield, value.value.l); 3878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmReleaseTrackedAlloc(value.value.l, self); 3879364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes } else { 3880364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes /* 3881364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes * Note: This always stores the full width of a 3882364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes * JValue, even though most of the time only the first 3883364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes * word is needed. 3884364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes */ 3885364f9d924cbd9d392744a66f80cc084c3d80caf0Barry Hayes sfield->value = value.value; 3886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Something up above had a problem. TODO: See comment 3890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * above the switch about verfication. 3891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGE("Bogus static initialization: value type %d in field type " 3893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "%s for %s at index %d", 3894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project value.type, descriptor, clazz->descriptor, i); 3895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 3896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Determine whether "descriptor" yields the same class object in the 3903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * context of clazz1 and clazz2. 3904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller must hold gDvm.loadedClasses. 3906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if they match. 3908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool compareDescriptorClasses(const char* descriptor, 3910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz1, const ClassObject* clazz2) 3911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result1; 3913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* result2; 3914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Do the first lookup by name. 3917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result1 = dvmFindClassNoInit(descriptor, clazz1->classLoader); 3919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can skip a second lookup by name if the second class loader is 3922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * in the initiating loader list of the class object we retrieved. 3923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (This means that somebody already did a lookup of this class through 3924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the second loader, and it resolved to the same class.) If it's not 3925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * there, we may simply not have had an opportunity to add it yet, so 3926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we do the full lookup. 3927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The initiating loader test should catch the majority of cases 3929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (in particular, the zillions of references to String/Object). 3930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unfortunately we're still stuck grabbing a mutex to do the lookup. 3932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For this to work, the superclass/interface should be the first 3934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * argument, so that way if it's from the bootstrap loader this test 3935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * will work. (The bootstrap loader, by definition, never shows up 3936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * as the initiating loader of a class defined by some other loader.) 3937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 3939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool isInit = dvmLoaderInInitiatingList(result1, clazz2->classLoader); 3940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 3941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (isInit) { 3943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("%s(obj=%p) / %s(cl=%p): initiating\n", 3944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // result1->descriptor, result1, 3945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz2->descriptor, clazz2->classLoader); 3946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("%s(obj=%p) / %s(cl=%p): RAW\n", 3949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // result1->descriptor, result1, 3950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz2->descriptor, clazz2->classLoader); 3951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result2 = dvmFindClassNoInit(descriptor, clazz2->classLoader); 3952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result1 == NULL || result2 == NULL) { 3955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmClearException(dvmThreadSelf()); 3956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result1 == result2) { 3957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 3958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Neither class loader could find this class. Apparently it 3959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * doesn't exist. 3960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We can either throw some sort of exception now, or just 3962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * assume that it'll fail later when something actually tries 3963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to use the class. For strict handling we should throw now, 3964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because a "tricky" class loader could start returning 3965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * something later, and a pair of "tricky" loaders could set 3966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * us up for confusion. 3967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * I'm not sure if we're allowed to complain about nonexistent 3969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * classes in method signatures during class init, so for now 3970f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this will just return "true" and let nature take its course. 3971f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3972f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 3973f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 3974f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* only one was found, so clearly they're not the same */ 3975f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 3976f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3977f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 3978f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3979f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result1 == result2; 3980f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 3981f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3982f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 3983f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For every component in the method descriptor, resolve the class in the 3984f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * context of the two classes and compare the results. 3985f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3986f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * For best results, the "superclass" class should be first. 3987f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3988f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns "true" if the classes match, "false" otherwise. 3989f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 3990f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool checkMethodDescriptorClasses(const Method* meth, 3991f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz1, const ClassObject* clazz2) 3992f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 3993f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project DexParameterIterator iterator; 3994f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor; 3995f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 3996f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* walk through the list of parameters */ 3997f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dexParameterIteratorInit(&iterator, &meth->prototype); 3998f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (true) { 3999f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexParameterIteratorNextDescriptor(&iterator); 4000f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4001f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor == NULL) 4002f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project break; 4003f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4004f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor[0] == 'L' || descriptor[0] == '[') { 4005f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* non-primitive type */ 4006f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!compareDescriptorClasses(descriptor, clazz1, clazz2)) 4007f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4008f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4009f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4010f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4011f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* check the return type */ 4012f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project descriptor = dexProtoGetReturnType(&meth->prototype); 4013f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (descriptor[0] == 'L' || descriptor[0] == '[') { 4014f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!compareDescriptorClasses(descriptor, clazz1, clazz2)) 4015f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4016f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4017f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 4018f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4019f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4020f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4021f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Validate the descriptors in the superclass and interfaces. 4022f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4023f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * What we need to do is ensure that the classes named in the method 4024f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptors in our ancestors and ourselves resolve to the same class 4025cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * objects. We can get conflicts when the classes come from different 4026cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * class loaders, and the resolver comes up with different results for 4027cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * the same class name in different contexts. 4028cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * 4029cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * An easy way to cause the problem is to declare a base class that uses 4030cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * class Foo in a method signature (e.g. as the return type). Then, 4031cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * define a subclass and a different version of Foo, and load them from a 4032cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * different class loader. If the subclass overrides the method, it will 4033cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * have a different concept of what Foo is than its parent does, so even 4034cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * though the method signature strings are identical, they actually mean 4035cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * different things. 4036cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * 4037cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * A call to the method through a base-class reference would be treated 4038cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * differently than a call to the method through a subclass reference, which 4039cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * isn't the way polymorphism works, so we have to reject the subclass. 4040cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * If the subclass doesn't override the base method, then there's no 4041cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * problem, because calls through base-class references and subclass 4042cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * references end up in the same place. 4043cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * 4044cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * We don't need to check to see if an interface's methods match with its 4045cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * superinterface's methods, because you can't instantiate an interface 4046cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * and do something inappropriate with it. If interface I1 extends I2 4047cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * and is implemented by C, and I1 and I2 are in separate class loaders 4048cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * and have conflicting views of other classes, we will catch the conflict 4049cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * when we process C. Anything that implements I1 is doomed to failure, 4050cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * but we don't need to catch that while processing I1. 4051f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4052f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, throws an exception and returns "false". 4053f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4054f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic bool validateSuperDescriptors(const ClassObject* clazz) 4055f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4056f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4057f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4058f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsInterfaceClass(clazz)) 4059f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 4060f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4061f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4062f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Start with the superclass-declared methods. 4063f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4064f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL && 4065f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->classLoader != clazz->super->classLoader) 4066f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 4067f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4068cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * Walk through every overridden method and compare resolved 4069cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * descriptor components. We pull the Method structs out of 4070cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * the vtable. It doesn't matter whether we get the struct from 4071cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * the parent or child, since we just need the UTF-8 descriptor, 4072cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden * which must match. 4073f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4074f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We need to do this even for the stuff inherited from Object, 4075f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * because it's possible that the new class loader has redefined 4076f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a basic class like String. 4077e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * 4078e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * We don't need to check stuff defined in a superclass because 4079e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * it was checked when the superclass was loaded. 4080f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4081f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* meth; 4082f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4083f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //printf("Checking %s %p vs %s %p\n", 4084f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->descriptor, clazz->classLoader, 4085f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // clazz->super->descriptor, clazz->super->classLoader); 4086f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = clazz->super->vtableCount - 1; i >= 0; i--) { 4087f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->vtable[i]; 4088cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden if (meth != clazz->super->vtable[i] && 4089cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden !checkMethodDescriptorClasses(meth, clazz->super, clazz)) 4090cab8be0c6e1e9a683402d5a71b037723a6b15bb2Andy McFadden { 4091f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method mismatch: %s in %s (cl=%p) and super %s (cl=%p)\n", 4092f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name, clazz->descriptor, clazz->classLoader, 4093f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->super->descriptor, clazz->super->classLoader); 4094f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 4095f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Classes resolve differently in superclass"); 4096f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4097f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4098f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4099f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4102e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * Check the methods defined by this class against the interfaces it 4103e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * implements. If we inherited the implementation from a superclass, 4104e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * we have to check it against the superclass (which might be in a 4105e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * different class loader). If the superclass also implements the 4106e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * interface, we could skip the check since by definition it was 4107e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden * performed when the class was loaded. 4108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->iftableCount; i++) { 4110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const InterfaceEntry* iftable = &clazz->iftable[i]; 4111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->classLoader != iftable->clazz->classLoader) { 4113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* iface = iftable->clazz; 4114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 4115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < iface->virtualMethodCount; j++) { 4117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* meth; 4118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int vtableIndex; 4119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project vtableIndex = iftable->methodIndexArray[j]; 4121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth = clazz->vtable[vtableIndex]; 4122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4123e7b30940e1459c50b003edb3909eeeb919cab3d5Andy McFadden if (!checkMethodDescriptorClasses(meth, iface, meth->clazz)) { 4124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Method mismatch: %s in %s (cl=%p) and " 4125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "iface %s (cl=%p)\n", 4126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project meth->name, clazz->descriptor, clazz->classLoader, 4127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project iface->descriptor, iface->classLoader); 4128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/LinkageError;", 4129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "Classes resolve differently in interface"); 4130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 4137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns true if the class is being initialized by us (which means that 4141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * calling dvmInitClass will return immediately after fiddling with locks). 414210cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * Returns false if it's not being initialized, or if it's being 414310cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * initialized by another thread. 4144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 414510cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * The value for initThreadId is always set to "self->threadId", by the 414610cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * thread doing the initializing. If it was done by the current thread, 414710cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * we are guaranteed to see "initializing" and our thread ID, even on SMP. 414810cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * If it was done by another thread, the only bad situation is one in 414910cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * which we see "initializing" and a stale copy of our own thread ID 415010cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * while another thread is actually handling init. 415110cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * 415210cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * The initThreadId field is used during class linking, so it *is* 415310cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * possible to have a stale value floating around. We need to ensure 415410cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden * that memory accesses happen in the correct order. 4155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmIsClassInitializing(const ClassObject* clazz) 4157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 415810cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden ClassStatus status; 415910cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden 416010cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden status = android_atomic_acquire_load((ClassStatus*) &clazz->status); 416110cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden return (status == CLASS_INITIALIZING && 4162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId == dvmThreadSelf()->threadId); 4163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4165f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4166f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If a class has not been initialized, do so by executing the code in 4167f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * <clinit>. The sequence is described in the VM spec v2 2.17.5. 4168f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4169f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It is possible for multiple threads to arrive here simultaneously, so 4170f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * we need to lock the class while we check stuff. We know that no 4171f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * interpreted code has access to the class yet, so we can use the class's 4172f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * monitor lock. 4173f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4174f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We will often be called recursively, e.g. when the <clinit> code resolves 4175f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * one of its fields, the field resolution will try to initialize the class. 417677514abeade6960daf67f5fec3a865df29ea0256Andy McFadden * In that case we will return "true" even though the class isn't actually 417777514abeade6960daf67f5fec3a865df29ea0256Andy McFadden * ready to go. The ambiguity can be resolved with dvmIsClassInitializing(). 417877514abeade6960daf67f5fec3a865df29ea0256Andy McFadden * (TODO: consider having this return an enum to avoid the extra call -- 417977514abeade6960daf67f5fec3a865df29ea0256Andy McFadden * return -1 on failure, 0 on success, 1 on still-initializing. Looks like 418077514abeade6960daf67f5fec3a865df29ea0256Andy McFadden * dvmIsClassInitializing() is always paired with *Initialized()) 4181f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4182f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This can get very interesting if a class has a static field initialized 4183f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to a new instance of itself. <clinit> will end up calling <init> on 4184f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the members it is initializing, which is fine unless it uses the contents 4185f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * of static fields to initialize instance fields. This will leave the 4186f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * static-referenced objects in a partially initialized state. This is 4187f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * reasonably rare and can sometimes be cured with proper field ordering. 4188f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4189f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On failure, returns "false" with an exception raised. 4190f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4191f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * ----- 4192f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4193f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It is possible to cause a deadlock by having a situation like this: 4194f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class A { static { sleep(10000); new B(); } } 4195f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class B { static { sleep(10000); new A(); } } 4196f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * new Thread() { public void run() { new A(); } }.start(); 4197f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * new Thread() { public void run() { new B(); } }.start(); 4198f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This appears to be expected under the spec. 4199f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4200f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The interesting question is what to do if somebody calls Thread.interrupt() 4201f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * on one of the deadlocked threads. According to the VM spec, they're both 4202f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * sitting in "wait". Should the interrupt code quietly raise the 4203f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "interrupted" flag, or should the "wait" return immediately with an 4204f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * exception raised? 4205f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4206f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This gets a little murky. The VM spec says we call "wait", and the 4207f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * spec for Thread.interrupt says Object.wait is interruptible. So it 4208f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * seems that, if we get unlucky and interrupt class initialization, we 4209f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * are expected to throw (which gets converted to ExceptionInInitializerError 4210f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * since InterruptedException is checked). 4211f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4212f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * There are a couple of problems here. First, all threads are expected to 4213f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * present a consistent view of class initialization, so we can't have it 4214f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * fail in one thread and succeed in another. Second, once a class fails 4215f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to initialize, it must *always* fail. This means that a stray interrupt() 4216f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * call could render a class unusable for the lifetime of the VM. 4217f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4218f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * In most cases -- the deadlock example above being a counter-example -- 4219f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the interrupting thread can't tell whether the target thread handled 4220f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the initialization itself or had to wait while another thread did the 4221f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * work. Refusing to interrupt class initialization is, in most cases, 4222f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * not something that a program can reliably detect. 4223f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4224f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * On the assumption that interrupting class initialization is highly 4225f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * undesirable in most circumstances, and that failing to do so does not 4226f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * deviate from the spec in a meaningful way, we don't allow class init 4227f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to be interrupted by Thread.interrupt(). 4228f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4229f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbool dvmInitClass(ClassObject* clazz) 4230f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4231f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4232f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool initializedByUs = false; 4233f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4234f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4235f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread* self = dvmThreadSelf(); 4236f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method; 4237f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4238f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4239f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmIsClassLinked(clazz) || clazz->status == CLASS_ERROR); 4240f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4241f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4242f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If the class hasn't been verified yet, do so now. 4243f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4244f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status < CLASS_VERIFIED) { 4245f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4246f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * If we're in an "erroneous" state, throw an exception and bail. 4247f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4248f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4249f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 4250f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4251f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4252f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4253f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_RESOLVED); 4254f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(!IS_CLASS_FLAG_SET(clazz, CLASS_ISPREVERIFIED)); 4255f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4256f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.classVerifyMode == VERIFY_MODE_NONE || 4257f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (gDvm.classVerifyMode == VERIFY_MODE_REMOTE && 4258f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->classLoader == NULL)) 4259f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project { 4260d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden /* advance to "verified" state */ 4261f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ not verifying class %s (cl=%p)\n", 4262f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader); 4263d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden clazz->status = CLASS_VERIFIED; 4264f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto noverify; 4265f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4266f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4267f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!gDvm.optimizing) 4268f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("+++ late verify on %s\n", clazz->descriptor); 4269f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4270f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4271f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're not supposed to optimize an unverified class, but during 4272f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * development this mode was useful. We can't verify an optimized 4273f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class because the optimization process discards information. 4274f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4275f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (IS_CLASS_FLAG_SET(clazz, CLASS_ISOPTIMIZED)) { 4276f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("Class '%s' was optimized without verification; " 4277f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "not verifying now\n", 4278f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4279f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW(" ('rm /data/dalvik-cache/*' and restart to fix this)"); 4280f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto verify_failed; 4281f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4282f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4283f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFYING; 4284228a6b01918304f2cd1213c722e028a6e25252bbAndy McFadden if (!dvmVerifyClass(clazz)) { 4285f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectverify_failed: 4286f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowExceptionWithClassMessage("Ljava/lang/VerifyError;", 4287f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4288fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden dvmSetFieldObject((Object*) clazz, 4289fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden offsetof(ClassObject, verifyErrorClass), 4290fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden (Object*) dvmGetException(self)->clazz); 4291f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4292f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4293f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4294f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4295f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_VERIFIED; 4296f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4297f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectnoverify: 4298f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4299fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden /* 4300fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden * We need to ensure that certain instructions, notably accesses to 4301fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden * volatile fields, are replaced before any code is executed. This 4302fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden * must happen even if DEX optimizations are disabled. 4303fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden */ 4304fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden if (!IS_CLASS_FLAG_SET(clazz, CLASS_ISOPTIMIZED)) { 4305fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden LOGV("+++ late optimize on %s (pv=%d)\n", 4306fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden clazz->descriptor, IS_CLASS_FLAG_SET(clazz, CLASS_ISPREVERIFIED)); 4307fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden dvmOptimizeClass(clazz, true); 4308fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden SET_CLASS_FLAG(clazz, CLASS_ISOPTIMIZED); 4309fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden } 4310fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden 4311fb119e6cf8b47d53f024cae889487a17eacbf19fAndy McFadden /* update instruction stream now that verification + optimization is done */ 4312d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden dvmFlushBreakpoints(clazz); 4313d22748a8ddc8f6a7d2e82868b46e9a7739f2e8e5Andy McFadden 4314f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_INITIALIZED) 4315f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4316f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4317f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while (clazz->status == CLASS_INITIALIZING) { 4318f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* we caught somebody else in the act; was it us? */ 4319f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->initThreadId == self->threadId) { 4320f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGV("HEY: found a recursive <clinit>\n"); 4321f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4322f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4323f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4324f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4325f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGW("GLITCH: exception pending at start of class init\n"); 4326f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmAbort(); 4327f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4328f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4329f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4330f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Wait for the other thread to finish initialization. We pass 4331f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "false" for the "interruptShouldThrow" arg so it doesn't throw 4332f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception on interrupt. 4333f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4334f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectWait(self, (Object*) clazz, 0, 0, false); 4335f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4336f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4337f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * When we wake up, repeat the test for init-in-progress. If there's 4338f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * an exception pending (only possible if "interruptShouldThrow" 4339f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * was set), bail out. 4340f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4341f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4342f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Class init of '%s' failing with wait() exception\n", 4343f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor); 4344f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4345f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: this is bogus, because it means the two threads have a 4346f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * different idea of the class status. We need to flag the 4347f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class as bad and ensure that the initializer thread respects 4348f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our notice. If we get lucky and wake up after the class has 4349f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * finished initialization but before being woken, we have to 4350f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * swallow the exception, perhaps raising thread->interrupted 4351f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to preserve semantics. 4352f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4353f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Since we're not currently allowing interrupts, this should 4354f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * never happen and we don't need to fix this. 4355f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4356f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(false); 4357f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwClinitError(); 4358f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4359f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4360f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4361f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_INITIALIZING) { 4362f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("Waiting again for class init\n"); 4363f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project continue; 4364f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4365f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status == CLASS_INITIALIZED || 4366f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status == CLASS_ERROR); 4367f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4368f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4369f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The caller wants an exception, but it was thrown in a 4370f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * different thread. Synthesize one here. 4371f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4372f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmThrowException("Ljava/lang/UnsatisfiedLinkError;", 4373f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "(<clinit> failed, see exception in other thread)"); 4374f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4375f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4376f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4377f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4378f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* see if we failed previously */ 4379f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->status == CLASS_ERROR) { 4380f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // might be wise to unlock before throwing; depends on which class 4381f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // it is that we have locked 4382f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4383f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwEarlierClassFailure(clazz); 4384f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 4385f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4386f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4387e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden u8 startWhen = 0; 4388e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden if (gDvm.allocProf.enabled) { 4389e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden startWhen = dvmGetRelativeTimeNsec(); 4390e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden } 4391e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden 4392f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4393f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We're ready to go, and have exclusive access to the class. 4394f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4395f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Before we start initialization, we need to do one extra bit of 4396f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * validation: make sure that the methods declared here match up 4397f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * with our superclass and interfaces. We know that the UTF-8 4398f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * descriptors match, but classes from different class loaders can 4399f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * have the same name. 4400f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4401f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We do this now, rather than at load/link time, for the same reason 4402f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that we defer verification. 4403f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4404f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * It's unfortunate that we need to do this at all, but we risk 4405f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * mixing reference types with identical names (see Dalvik test 068). 4406f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4407f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!validateSuperDescriptors(clazz)) { 4408f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 4409f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4410f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_unlock; 4411f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4412f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4413f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4414f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Let's initialize this thing. 4415f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4416f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We unlock the object so that other threads can politely sleep on 4417f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * our mutex with Object.wait(), instead of hanging or spinning trying 4418f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * to grab our mutex. 4419f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4420f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(clazz->status < CLASS_INITIALIZING); 4421f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4422f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4423f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // We started initializing. 4424f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('+', clazz); 4425f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initializedByUs = true; 4426f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4427f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 442810cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden /* order matters here, esp. interaction with dvmIsClassInitializing */ 4429f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->initThreadId = self->threadId; 443010cac709fe47e458cad9a6657a4a89637bac99faAndy McFadden android_atomic_release_store(CLASS_INITIALIZING, &clazz->status); 4431f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4432f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4433f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* init our superclass */ 4434f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->super != NULL && clazz->super->status != CLASS_INITIALIZED) { 4435f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(!dvmIsInterfaceClass(clazz)); 4436f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmInitClass(clazz->super)) { 4437f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assert(dvmCheckException(self)); 4438f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4439f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* wake up anybody who started waiting while we were unlocked */ 4440f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4441f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project goto bail_notify; 4442f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4443f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4444f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4445f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Initialize any static fields whose values are 4446f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * stored in the Dex file. This should include all of the 4447f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * simple "final static" fields, which are required to 4448f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * be initialized first. (vmspec 2 sec 2.17.5 item 8) 4449f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * More-complicated final static fields should be set 4450f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * at the beginning of <clinit>; all we can do is trust 4451f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * that the compiler did the right thing. 4452f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4453f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initSFields(clazz); 4454f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4455f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* Execute any static initialization code. 4456f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4457f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method = dvmFindDirectMethodByDescriptor(clazz, "<clinit>", "()V"); 4458f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (method == NULL) { 4459f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("No <clinit> found for %s\n", clazz->descriptor); 4460f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4461f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Invoking %s.<clinit>\n", clazz->descriptor); 4462f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue unused; 4463f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(self, method, NULL, &unused); 4464f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4465f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4466f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmCheckException(self)) { 4467f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4468f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * We've had an exception thrown during static initialization. We 4469f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * need to throw an ExceptionInInitializerError, but we want to 4470f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * tuck the original exception into the "cause" field. 4471f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 447222680eee4aa012c839568d83a132b2b20ff39525Elliott Hughes LOGW("Exception %s thrown while initializing %s\n", 4473f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (dvmGetException(self)->clazz)->descriptor, clazz->descriptor); 4474f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throwClinitError(); 4475f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //LOGW("+++ replaced\n"); 4476f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4477f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4478f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_ERROR; 4479f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4480f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* success! */ 4481f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLockObject(self, (Object*) clazz); 4482f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->status = CLASS_INITIALIZED; 4483f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGVV("Initialized class: %s\n", clazz->descriptor); 4484e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden 4485e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden /* 4486e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden * Update alloc counters. TODO: guard with mutex. 4487e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden */ 4488e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden if (gDvm.allocProf.enabled && startWhen != 0) { 4489e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden u8 initDuration = dvmGetRelativeTimeNsec() - startWhen; 4490e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden gDvm.allocProf.classInitTime += initDuration; 4491e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden self->allocProf.classInitTime += initDuration; 4492e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden gDvm.allocProf.classInitCount++; 4493e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden self->allocProf.classInitCount++; 4494e15a8eb2653da80c1c3816ddce8186746b57b4a3Andy McFadden } 4495f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4496f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4497f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_notify: 4498f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* 4499f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Notify anybody waiting on the object. 4500f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4501f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmObjectNotifyAll(self, (Object*) clazz); 4502f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4503f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectbail_unlock: 4504f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4505f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#if LOG_CLASS_LOADING 4506f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (initializedByUs) { 4507f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // We finished initializing. 4508f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project logClassLoad('-', clazz); 4509f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4510f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4511f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4512f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmUnlockObject(self, (Object*) clazz); 4513f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4514f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (clazz->status != CLASS_ERROR); 4515f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4516f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4517f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4518f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Replace method->nativeFunc and method->insns with new values. This is 45191e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * commonly performed after successful resolution of a native method. 45201e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * 45211e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * There are three basic states: 45221e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * (1) (initial) nativeFunc = dvmResolveNativeMethod, insns = NULL 45231e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * (2) (internal native) nativeFunc = <impl>, insns = NULL 45241e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * (3) (JNI) nativeFunc = JNI call bridge, insns = <impl> 45251e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * 45261e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * nativeFunc must never be NULL for a native method. 45271e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * 45281e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * The most common transitions are (1)->(2) and (1)->(3). The former is 45291e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * atomic, since only one field is updated; the latter is not, but since 45301e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * dvmResolveNativeMethod ignores the "insns" field we just need to make 45311e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * sure the update happens in the correct order. 45321e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * 45331e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * A transition from (2)->(1) would work fine, but (3)->(1) will not, 45341e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * because both fields change. If we did this while a thread was executing 45351e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * in the call bridge, we could null out the "insns" field right before 45361e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * the bridge tried to call through it. So, once "insns" is set, we do 45371e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * not allow it to be cleared. A NULL value for the "insns" argument is 45381e83b4d026199073c057edcb7836d06ae0716390Andy McFadden * treated as "do not change existing value". 4539f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 45401e83b4d026199073c057edcb7836d06ae0716390Andy McFaddenvoid dvmSetNativeFunc(Method* method, DalvikBridgeFunc func, 4541f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const u2* insns) 4542f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4543f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = method->clazz; 4544f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 45451e83b4d026199073c057edcb7836d06ae0716390Andy McFadden assert(func != NULL); 45461e83b4d026199073c057edcb7836d06ae0716390Andy McFadden 4547f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* just open up both; easier that way */ 4548f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 4549f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->directMethods); 4550f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 45511e83b4d026199073c057edcb7836d06ae0716390Andy McFadden if (insns != NULL) { 45521e83b4d026199073c057edcb7836d06ae0716390Andy McFadden /* update both, ensuring that "insns" is observed first */ 45531e83b4d026199073c057edcb7836d06ae0716390Andy McFadden method->insns = insns; 45541e83b4d026199073c057edcb7836d06ae0716390Andy McFadden android_atomic_release_store((int32_t) func, 45551e83b4d026199073c057edcb7836d06ae0716390Andy McFadden (void*) &method->nativeFunc); 45561e83b4d026199073c057edcb7836d06ae0716390Andy McFadden } else { 45571e83b4d026199073c057edcb7836d06ae0716390Andy McFadden /* only update nativeFunc */ 45581e83b4d026199073c057edcb7836d06ae0716390Andy McFadden method->nativeFunc = func; 45591e83b4d026199073c057edcb7836d06ae0716390Andy McFadden } 4560f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4561f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 4562f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->directMethods); 4563f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4564f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4565f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4566f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Add a RegisterMap to a Method. This is done when we verify the class 456799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * and compute the register maps at class initialization time (i.e. when 456899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * we don't have a pre-generated map). This means "pMap" is on the heap 456999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * and should be freed when the Method is discarded. 4570f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4571f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmSetRegisterMap(Method* method, const RegisterMap* pMap) 4572f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4573f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = method->clazz; 4574f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4575f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (method->registerMap != NULL) { 4576d45a88794c6470d96e2139cbe803002d9d5d3a6cAndy McFadden /* unexpected during class loading, okay on first use (uncompress) */ 45779faa9e6a7df9a5b9ef7c8e9d5c07d2a050c319d3Andy McFadden LOGV("NOTE: registerMap already set for %s.%s\n", 4578f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method->clazz->descriptor, method->name); 4579f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* keep going */ 4580f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 458199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project assert(!dvmIsNativeMethod(method) && !dvmIsAbstractMethod(method)); 4582f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4583f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* might be virtual or direct */ 4584f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->virtualMethods); 4585f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadWrite(clazz->classLoader, clazz->directMethods); 4586f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4587f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method->registerMap = pMap; 4588f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4589f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->virtualMethods); 4590f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmLinearReadOnly(clazz->classLoader, clazz->directMethods); 4591f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4592f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4593f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4594f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmHashForeach callback. A nonzero return value causes foreach to 4595f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * bail out. 4596f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4597f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int findClassCallback(void* vclazz, void* arg) 4598f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4599f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz = vclazz; 4600f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor = (const char*) arg; 4601f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4602f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (strcmp(clazz->descriptor, descriptor) == 0) 4603f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (int) clazz; 4604f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4605f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4606f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4607f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4608f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Find a loaded class by descriptor. Returns the first one found. 4609f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Because there can be more than one if class loaders are involved, 4610f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this is not an especially good API. (Currently only used by the 4611f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * debugger and "checking" JNI.) 4612f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4613f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "descriptor" should have the form "Ljava/lang/Class;" or 4614f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * "[Ljava/lang/Class;", i.e. a descriptor and not an internal-form 4615f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * class name. 4616f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4617f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectClassObject* dvmFindLoadedClass(const char* descriptor) 4618f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4619f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result; 4620f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4621f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4622f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result = dvmHashForeach(gDvm.loadedClasses, findClassCallback, 4623f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (void*) descriptor); 4624f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4625f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4626f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (ClassObject*) result; 4627f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4628f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4629f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4630f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Retrieve the system (a/k/a application) class loader. 4631f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4632f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source ProjectObject* dvmGetSystemClassLoader(void) 4633f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4634f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassObject* clazz; 4635f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Method* getSysMeth; 4636f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object* loader; 4637f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4638f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz = dvmFindSystemClass("Ljava/lang/ClassLoader;"); 4639f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) 4640f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 4641f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4642f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project getSysMeth = dvmFindDirectMethodByDescriptor(clazz, "getSystemClassLoader", 4643f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "()Ljava/lang/ClassLoader;"); 4644f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (getSysMeth == NULL) 4645f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return NULL; 4646f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4647f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project JValue result; 4648f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmCallMethod(dvmThreadSelf(), getSysMeth, NULL, &result); 4649f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loader = (Object*)result.l; 4650f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return loader; 4651f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4652f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4653f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4654f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4655f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This is a dvmHashForeach callback. 4656f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4657f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int dumpClass(void* vclazz, void* varg) 4658f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4659f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 4660f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* super; 4661f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int flags = (int) varg; 4662f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project char* desc; 4663f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4664f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4665f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz == NULL) { 4666f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("dumpClass: ignoring request to dump null class\n"); 4667f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4668f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4669f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4670f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((flags & kDumpClassFullDetail) == 0) { 4671f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool showInit = (flags & kDumpClassInitialized) != 0; 4672f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool showLoader = (flags & kDumpClassClassLoader) != 0; 4673f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* initStr; 4674f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4675f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project initStr = dvmIsClassInitialized(clazz) ? "true" : "false"; 4676f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4677f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (showInit && showLoader) 4678f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %p %s\n", clazz->descriptor, clazz->classLoader, initStr); 4679f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else if (showInit) 4680f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %s\n", clazz->descriptor, initStr); 4681f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else if (showLoader) 4682f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s %p\n", clazz->descriptor, clazz->classLoader); 4683f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 4684f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("%s\n", clazz->descriptor); 4685f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4686f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4687f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4688f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4689f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* clazz->super briefly holds the superclass index during class prep */ 4690f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((u4)clazz->super > 0x10000 && (u4) clazz->super != (u4)-1) 4691f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super = clazz->super; 4692f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project else 4693f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super = NULL; 4694f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4695f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("----- %s '%s' cl=%p ser=0x%08x -----\n", 4696f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmIsInterfaceClass(clazz) ? "interface" : "class", 4697f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->descriptor, clazz->classLoader, clazz->serialNumber); 4698f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" objectSize=%d (%d from super)\n", (int) clazz->objectSize, 4699f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super != NULL ? (int) super->objectSize : -1); 4700f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" access=0x%04x.%04x\n", clazz->accessFlags >> 16, 4701f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->accessFlags & JAVA_FLAGS_MASK); 4702f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (super != NULL) 4703f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" super='%s' (cl=%p)\n", super->descriptor, super->classLoader); 4704f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (dvmIsArrayClass(clazz)) { 4705f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" dimensions=%d elementClass=%s\n", 4706f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->arrayDim, clazz->elementClass->descriptor); 4707f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4708f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->iftableCount > 0) { 4709f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" interfaces (%d):\n", clazz->iftableCount); 4710f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->iftableCount; i++) { 4711f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project InterfaceEntry* ent = &clazz->iftable[i]; 4712f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int j; 4713f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4714f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %s (cl=%p)\n", 4715f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project i, ent->clazz->descriptor, ent->clazz->classLoader); 4716f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4717f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* enable when needed */ 4718f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (false && ent->methodIndexArray != NULL) { 4719f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (j = 0; j < ent->clazz->virtualMethodCount; j++) 4720f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %d %s %s\n", 4721f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project j, ent->methodIndexArray[j], 4722f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ent->clazz->virtualMethods[j].name, 4723f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[ent->methodIndexArray[j]]->name); 4724f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4725f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4726f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4727f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!dvmIsInterfaceClass(clazz)) { 4728f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" vtable (%d entries, %d in super):\n", clazz->vtableCount, 4729f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super != NULL ? super->vtableCount : 0); 4730f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->vtableCount; i++) { 4731f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor(&clazz->vtable[i]->prototype); 4732f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %s%2d: %p %20s %s\n", 4733f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (i != clazz->vtable[i]->methodIndex) ? "*** " : "", 4734f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (u4) clazz->vtable[i]->methodIndex, clazz->vtable[i], 4735f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->vtable[i]->name, desc); 4736f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4737f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4738f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" direct methods (%d entries):\n", clazz->directMethodCount); 4739f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->directMethodCount; i++) { 4740f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor( 4741f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &clazz->directMethods[i].prototype); 4742f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->directMethods[i].name, 4743f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc); 4744f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4745f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4746f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 4747f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" interface methods (%d):\n", clazz->virtualMethodCount); 4748f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->virtualMethodCount; i++) { 4749f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc = dexProtoCopyMethodDescriptor( 4750f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project &clazz->virtualMethods[i].prototype); 4751f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %2d %20s %s\n", i, 4752f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (u4) clazz->virtualMethods[i].methodIndex, 4753f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->virtualMethods[i].name, 4754f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project desc); 4755f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project free(desc); 4756f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4757f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4758f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->sfieldCount > 0) { 4759f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" static fields (%d entries):\n", clazz->sfieldCount); 4760f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->sfieldCount; i++) { 4761f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->sfields[i].field.name, 4762f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->sfields[i].field.signature); 4763f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4764f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4765f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (clazz->ifieldCount > 0) { 4766f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" instance fields (%d entries):\n", clazz->ifieldCount); 4767f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 4768f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI(" %2d: %20s %s\n", i, clazz->ifields[i].field.name, 4769f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project clazz->ifields[i].field.signature); 4770f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4771f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4772f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4773f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4774f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4775f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4776f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of a single class. 4777f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4778f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pass kDumpClassFullDetail into "flags" to get lots of detail. 4779f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4780f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpClass(const ClassObject* clazz, int flags) 4781f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4782f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dumpClass((void*) clazz, (void*) flags); 4783f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4784f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4785f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4786f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the contents of all classes. 4787f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4788f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpAllClasses(int flags) 4789f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4790f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4791f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, dumpClass, (void*) flags); 4792f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4793f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4794f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4795f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4796f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Get the number of loaded classes 4797f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4798f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmGetNumLoadedClasses() 4799f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4800f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int count; 4801f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4802f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project count = dvmHashTableNumEntries(gDvm.loadedClasses); 4803f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4804f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return count; 4805f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4806f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4807f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4808f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Write some statistics to the log file. 4809f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4810f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpLoaderStats(const char* msg) 4811f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4812f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGV("VM stats (%s): cls=%d/%d meth=%d ifld=%d sfld=%d linear=%d\n", 4813f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project msg, gDvm.numLoadedClasses, dvmHashTableNumEntries(gDvm.loadedClasses), 4814f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredMethods, gDvm.numDeclaredInstFields, 4815f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project gDvm.numDeclaredStaticFields, gDvm.pBootLoaderAlloc->curOffset); 4816f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef COUNT_PRECISE_METHODS 4817f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project LOGI("GC precise methods: %d\n", 4818f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmPointerSetGetCount(gDvm.preciseMethods)); 4819f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4820f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4821f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4822f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#ifdef PROFILE_FIELD_ACCESS 4823f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4824f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the field access counts for all fields in this method. 4825f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4826f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int dumpAccessCounts(void* vclazz, void* varg) 4827f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4828f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const ClassObject* clazz = (const ClassObject*) vclazz; 4829f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i; 4830f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4831f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->ifieldCount; i++) { 4832f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Field* field = &clazz->ifields[i].field; 4833f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4834f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->gets != 0) 4835f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("GI %d %s.%s\n", field->gets, 4836f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4837f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->puts != 0) 4838f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("PI %d %s.%s\n", field->puts, 4839f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4840f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4841f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (i = 0; i < clazz->sfieldCount; i++) { 4842f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Field* field = &clazz->sfields[i].field; 4843f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4844f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->gets != 0) 4845f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("GS %d %s.%s\n", field->gets, 4846f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4847f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (field->puts != 0) 4848f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project printf("PS %d %s.%s\n", field->puts, 4849f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project field->clazz->descriptor, field->name); 4850f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4851f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4852f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4853f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4854f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4855f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4856f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Dump the field access counts for all loaded classes. 4857f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4858f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmDumpFieldAccessCounts(void) 4859f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4860f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4861f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, dumpAccessCounts, NULL); 4862f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4863f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4864f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project#endif 4865f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4866f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4867f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4868f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Mark all classes associated with the built-in loader. 4869f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4870f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectstatic int markClassObject(void *clazz, void *arg) 4871f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4872f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project UNUSED_PARAMETER(arg); 4873f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4874f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmMarkObjectNonNull((Object *)clazz); 4875f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 4876f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4877f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4878f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4879f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The garbage collector calls this to mark the class objects for all 4880f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * loaded classes. 4881f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4882f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectvoid dvmGcScanRootClassLoader() 4883f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4884f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* dvmClassStartup() may not have been called before the first GC. 4885f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4886f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (gDvm.loadedClasses != NULL) { 4887f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableLock(gDvm.loadedClasses); 4888f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashForeach(gDvm.loadedClasses, markClassObject, NULL); 4889f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project dvmHashTableUnlock(gDvm.loadedClasses); 4890f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4891f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4892f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4893f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4894f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4895f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 4896f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Method Prototypes and Descriptors 4897f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * =========================================================================== 4898f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4899f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4900f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4901f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare the two method names and prototypes, a la strcmp(). The 4902f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * name is considered the "major" order and the prototype the "minor" 4903f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * order. The prototypes are compared as if by dvmCompareMethodProtos(). 4904f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4905f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareMethodNamesAndProtos(const Method* method1, 4906f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method2) 4907f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4908f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(method1->name, method2->name); 4909f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4910f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4911f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4912f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4913f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4914f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareMethodProtos(method1, method2); 4915f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4916f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4917f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4918f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare the two method names and prototypes, a la strcmp(), ignoring 4919f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the return value. The name is considered the "major" order and the 4920f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * prototype the "minor" order. The prototypes are compared as if by 4921f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dvmCompareMethodArgProtos(). 4922f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4923f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareMethodNamesAndParameterProtos(const Method* method1, 4924f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const Method* method2) 4925f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4926f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(method1->name, method2->name); 4927f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4928f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4929f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4930f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4931f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4932f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareMethodParameterProtos(method1, method2); 4933f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4934f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4935f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4936f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare a (name, prototype) pair with the (name, prototype) of 4937f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a method, a la strcmp(). The name is considered the "major" order and 4938f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the prototype the "minor" order. The descriptor and prototype are 4939f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compared as if by dvmCompareDescriptorAndMethodProto(). 4940f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4941f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareNameProtoAndMethod(const char* name, 4942f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const DexProto* proto, const Method* method) 4943f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4944f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(name, method->name); 4945f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4946f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4947f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4948f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4949f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4950f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dexProtoCompare(proto, &method->prototype); 4951f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4952f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4953f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 4954f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Compare a (name, method descriptor) pair with the (name, prototype) of 4955f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a method, a la strcmp(). The name is considered the "major" order and 4956f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the prototype the "minor" order. The descriptor and prototype are 4957f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * compared as if by dvmCompareDescriptorAndMethodProto(). 4958f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 4959f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectint dvmCompareNameDescriptorAndMethod(const char* name, 4960f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project const char* descriptor, const Method* method) 4961f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project{ 4962f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int result = strcmp(name, method->name); 4963f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4964f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != 0) { 4965f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return result; 4966f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 4967f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 4968f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return dvmCompareDescriptorAndMethodProto(descriptor, method); 4969f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 4970