Elliott Hughes | 2faa5f1 | 2012-01-30 14:42:07 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 16 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 17 | #include "class_linker.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 18 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 19 | #include <fcntl.h> |
| 20 | #include <sys/file.h> |
| 21 | #include <sys/stat.h> |
Brian Carlstrom | dbf05b7 | 2011-12-15 00:55:24 -0800 | [diff] [blame] | 22 | #include <sys/types.h> |
| 23 | #include <sys/wait.h> |
| 24 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 25 | #include <deque> |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 26 | #include <string> |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 27 | #include <utility> |
Elliott Hughes | 90a3369 | 2011-08-30 13:27:07 -0700 | [diff] [blame] | 28 | #include <vector> |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 29 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 30 | #include "casts.h" |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 31 | #include "class_loader.h" |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 32 | #include "debugger.h" |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 33 | #include "dex_cache.h" |
Elliott Hughes | 90a3369 | 2011-08-30 13:27:07 -0700 | [diff] [blame] | 34 | #include "dex_file.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 35 | #include "heap.h" |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 36 | #include "intern_table.h" |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 37 | #include "leb128.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 38 | #include "logging.h" |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 39 | #include "oat_file.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 40 | #include "object.h" |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 41 | #include "object_utils.h" |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 42 | #include "os.h" |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 43 | #include "runtime.h" |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 44 | #include "runtime_support.h" |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 45 | #if defined(ART_USE_LLVM_COMPILER) |
| 46 | #include "compiler_llvm/runtime_support_llvm.h" |
| 47 | #endif |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 48 | #include "ScopedLocalRef.h" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 49 | #include "scoped_thread_state_change.h" |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 50 | #include "space.h" |
Mathieu Chartier | b062fdd | 2012-07-03 09:51:48 -0700 | [diff] [blame] | 51 | #include "space_bitmap.h" |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 52 | #include "stack_indirect_reference_table.h" |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 53 | #include "stl_util.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 54 | #include "thread.h" |
Elliott Hughes | 54e7df1 | 2011-09-16 11:47:04 -0700 | [diff] [blame] | 55 | #include "UniquePtr.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 56 | #include "utils.h" |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 57 | #include "well_known_classes.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 58 | |
| 59 | namespace art { |
| 60 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 61 | static void ThrowNoClassDefFoundError(const char* fmt, ...) |
| 62 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 63 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 64 | static void ThrowNoClassDefFoundError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 65 | va_list args; |
| 66 | va_start(args, fmt); |
| 67 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/NoClassDefFoundError;", fmt, args); |
| 68 | va_end(args); |
| 69 | } |
| 70 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 71 | static void ThrowClassFormatError(const char* fmt, ...) |
| 72 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 73 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 74 | static void ThrowClassFormatError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 75 | va_list args; |
| 76 | va_start(args, fmt); |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 77 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/ClassFormatError;", fmt, args); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 78 | va_end(args); |
| 79 | } |
| 80 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 81 | static void ThrowLinkageError(const char* fmt, ...) |
| 82 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 83 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 84 | static void ThrowLinkageError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 85 | va_list args; |
| 86 | va_start(args, fmt); |
| 87 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/LinkageError;", fmt, args); |
| 88 | va_end(args); |
| 89 | } |
| 90 | |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 91 | static void ThrowNoSuchFieldError(const StringPiece& scope, Class* c, const StringPiece& type, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 92 | const StringPiece& name) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 93 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 94 | ClassHelper kh(c); |
| 95 | std::ostringstream msg; |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 96 | msg << "No " << scope << "field " << name << " of type " << type |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 97 | << " in class " << kh.GetDescriptor() << " or its superclasses"; |
| 98 | std::string location(kh.GetLocation()); |
| 99 | if (!location.empty()) { |
| 100 | msg << " (defined in " << location << ")"; |
| 101 | } |
| 102 | Thread::Current()->ThrowNewException("Ljava/lang/NoSuchFieldError;", msg.str().c_str()); |
| 103 | } |
| 104 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 105 | static void ThrowNullPointerException(const char* fmt, ...) |
| 106 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 107 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 108 | static void ThrowNullPointerException(const char* fmt, ...) { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 109 | va_list args; |
| 110 | va_start(args, fmt); |
| 111 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/NullPointerException;", fmt, args); |
| 112 | va_end(args); |
| 113 | } |
| 114 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 115 | static void ThrowEarlierClassFailure(Class* c) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 116 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 117 | // The class failed to initialize on a previous attempt, so we want to throw |
| 118 | // a NoClassDefFoundError (v2 2.17.5). The exception to this rule is if we |
| 119 | // failed in verification, in which case v2 5.4.1 says we need to re-throw |
| 120 | // the previous error. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 121 | if (!Runtime::Current()->IsCompiler()) { // Give info if this occurs at runtime. |
| 122 | LOG(INFO) << "Rejecting re-init on previously-failed class " << PrettyClass(c); |
| 123 | } |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 124 | |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 125 | CHECK(c->IsErroneous()) << PrettyClass(c) << " " << c->GetStatus(); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 126 | if (c->GetVerifyErrorClass() != NULL) { |
| 127 | // TODO: change the verifier to store an _instance_, with a useful detail message? |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 128 | ClassHelper ve_ch(c->GetVerifyErrorClass()); |
| 129 | std::string error_descriptor(ve_ch.GetDescriptor()); |
| 130 | Thread::Current()->ThrowNewException(error_descriptor.c_str(), PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 131 | } else { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 132 | ThrowNoClassDefFoundError("%s", PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 133 | } |
| 134 | } |
| 135 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 136 | static void WrapExceptionInInitializer() |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 137 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 138 | Thread* self = Thread::Current(); |
| 139 | JNIEnv* env = self->GetJniEnv(); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 140 | |
| 141 | ScopedLocalRef<jthrowable> cause(env, env->ExceptionOccurred()); |
| 142 | CHECK(cause.get() != NULL); |
| 143 | |
| 144 | env->ExceptionClear(); |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 145 | bool is_error = env->IsInstanceOf(cause.get(), WellKnownClasses::java_lang_Error); |
| 146 | env->Throw(cause.get()); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 147 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 148 | // We only wrap non-Error exceptions; an Error can just be used as-is. |
| 149 | if (!is_error) { |
| 150 | self->ThrowNewWrappedException("Ljava/lang/ExceptionInInitializerError;", NULL); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 151 | } |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 152 | } |
| 153 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 154 | static size_t Hash(const char* s) { |
| 155 | // This is the java.lang.String hashcode for convenience, not interoperability. |
| 156 | size_t hash = 0; |
| 157 | for (; *s != '\0'; ++s) { |
| 158 | hash = hash * 31 + *s; |
| 159 | } |
| 160 | return hash; |
| 161 | } |
| 162 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 163 | const char* ClassLinker::class_roots_descriptors_[] = { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 164 | "Ljava/lang/Class;", |
| 165 | "Ljava/lang/Object;", |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 166 | "[Ljava/lang/Class;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 167 | "[Ljava/lang/Object;", |
| 168 | "Ljava/lang/String;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 169 | "Ljava/lang/DexCache;", |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 170 | "Ljava/lang/ref/Reference;", |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 171 | "Ljava/lang/reflect/Constructor;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 172 | "Ljava/lang/reflect/Field;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 173 | "Ljava/lang/reflect/AbstractMethod;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 174 | "Ljava/lang/reflect/Method;", |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 175 | "Ljava/lang/reflect/Proxy;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 176 | "[Ljava/lang/String;", |
| 177 | "[Ljava/lang/reflect/Field;", |
| 178 | "[Ljava/lang/reflect/AbstractMethod;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 179 | "Ljava/lang/ClassLoader;", |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 180 | "Ljava/lang/Throwable;", |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 181 | "Ljava/lang/ClassNotFoundException;", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 182 | "Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 183 | "Z", |
| 184 | "B", |
| 185 | "C", |
| 186 | "D", |
| 187 | "F", |
| 188 | "I", |
| 189 | "J", |
| 190 | "S", |
| 191 | "V", |
| 192 | "[Z", |
| 193 | "[B", |
| 194 | "[C", |
| 195 | "[D", |
| 196 | "[F", |
| 197 | "[I", |
| 198 | "[J", |
| 199 | "[S", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 200 | "[Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 201 | }; |
| 202 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 203 | ClassLinker* ClassLinker::CreateFromCompiler(const std::vector<const DexFile*>& boot_class_path, |
| 204 | InternTable* intern_table) { |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 205 | CHECK_NE(boot_class_path.size(), 0U); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 206 | UniquePtr<ClassLinker> class_linker(new ClassLinker(intern_table)); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 207 | class_linker->InitFromCompiler(boot_class_path); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 208 | return class_linker.release(); |
| 209 | } |
| 210 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 211 | ClassLinker* ClassLinker::CreateFromImage(InternTable* intern_table) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 212 | UniquePtr<ClassLinker> class_linker(new ClassLinker(intern_table)); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 213 | class_linker->InitFromImage(); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 214 | return class_linker.release(); |
| 215 | } |
| 216 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 217 | ClassLinker::ClassLinker(InternTable* intern_table) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 218 | // dex_lock_ is recursive as it may be used in stack dumping. |
| 219 | : dex_lock_("ClassLinker dex lock", kDefaultMutexLevel, true), |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 220 | class_roots_(NULL), |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 221 | array_iftable_(NULL), |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 222 | init_done_(false), |
| 223 | intern_table_(intern_table) { |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 224 | CHECK_EQ(arraysize(class_roots_descriptors_), size_t(kClassRootsMax)); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 225 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 226 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 227 | void ClassLinker::InitFromCompiler(const std::vector<const DexFile*>& boot_class_path) { |
| 228 | VLOG(startup) << "ClassLinker::Init"; |
| 229 | CHECK(Runtime::Current()->IsCompiler()); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 230 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 231 | CHECK(!init_done_); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 232 | |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 233 | // java_lang_Class comes first, it's needed for AllocClass |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 234 | Heap* heap = Runtime::Current()->GetHeap(); |
| 235 | SirtRef<Class> java_lang_Class(down_cast<Class*>(heap->AllocObject(NULL, sizeof(ClassClass)))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 236 | CHECK(java_lang_Class.get() != NULL); |
| 237 | java_lang_Class->SetClass(java_lang_Class.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 238 | java_lang_Class->SetClassSize(sizeof(ClassClass)); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 239 | // AllocClass(Class*) can now be used |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 240 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 241 | // Class[] is used for reflection support. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 242 | SirtRef<Class> class_array_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 243 | class_array_class->SetComponentType(java_lang_Class.get()); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 244 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 245 | // java_lang_Object comes next so that object_array_class can be created |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 246 | SirtRef<Class> java_lang_Object(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 247 | CHECK(java_lang_Object.get() != NULL); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 248 | // backfill Object as the super class of Class |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 249 | java_lang_Class->SetSuperClass(java_lang_Object.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 250 | java_lang_Object->SetStatus(Class::kStatusLoaded); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 251 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 252 | // Object[] next to hold class roots |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 253 | SirtRef<Class> object_array_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 254 | object_array_class->SetComponentType(java_lang_Object.get()); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 255 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 256 | // Setup the char class to be used for char[] |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 257 | SirtRef<Class> char_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 258 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 259 | // Setup the char[] class to be used for String |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 260 | SirtRef<Class> char_array_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 261 | char_array_class->SetComponentType(char_class.get()); |
| 262 | CharArray::SetArrayClass(char_array_class.get()); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 263 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 264 | // Setup String |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 265 | SirtRef<Class> java_lang_String(AllocClass(java_lang_Class.get(), sizeof(StringClass))); |
| 266 | String::SetClass(java_lang_String.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 267 | java_lang_String->SetObjectSize(sizeof(String)); |
| 268 | java_lang_String->SetStatus(Class::kStatusResolved); |
Jesse Wilson | 1415074 | 2011-07-29 19:04:44 -0400 | [diff] [blame] | 269 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 270 | // Create storage for root classes, save away our work so far (requires |
| 271 | // descriptors) |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 272 | class_roots_ = ObjectArray<Class>::Alloc(object_array_class.get(), kClassRootsMax); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 273 | CHECK(class_roots_ != NULL); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 274 | SetClassRoot(kJavaLangClass, java_lang_Class.get()); |
| 275 | SetClassRoot(kJavaLangObject, java_lang_Object.get()); |
| 276 | SetClassRoot(kClassArrayClass, class_array_class.get()); |
| 277 | SetClassRoot(kObjectArrayClass, object_array_class.get()); |
| 278 | SetClassRoot(kCharArrayClass, char_array_class.get()); |
| 279 | SetClassRoot(kJavaLangString, java_lang_String.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 280 | |
| 281 | // Setup the primitive type classes. |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 282 | SetClassRoot(kPrimitiveBoolean, CreatePrimitiveClass(Primitive::kPrimBoolean)); |
| 283 | SetClassRoot(kPrimitiveByte, CreatePrimitiveClass(Primitive::kPrimByte)); |
| 284 | SetClassRoot(kPrimitiveShort, CreatePrimitiveClass(Primitive::kPrimShort)); |
| 285 | SetClassRoot(kPrimitiveInt, CreatePrimitiveClass(Primitive::kPrimInt)); |
| 286 | SetClassRoot(kPrimitiveLong, CreatePrimitiveClass(Primitive::kPrimLong)); |
| 287 | SetClassRoot(kPrimitiveFloat, CreatePrimitiveClass(Primitive::kPrimFloat)); |
| 288 | SetClassRoot(kPrimitiveDouble, CreatePrimitiveClass(Primitive::kPrimDouble)); |
| 289 | SetClassRoot(kPrimitiveVoid, CreatePrimitiveClass(Primitive::kPrimVoid)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 290 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 291 | // Create array interface entries to populate once we can load system classes |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 292 | array_iftable_ = AllocObjectArray<InterfaceEntry>(2); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 293 | |
| 294 | // Create int array type for AllocDexCache (done in AppendToBootClassPath) |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 295 | SirtRef<Class> int_array_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 296 | int_array_class->SetComponentType(GetClassRoot(kPrimitiveInt)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 297 | IntArray::SetArrayClass(int_array_class.get()); |
| 298 | SetClassRoot(kIntArrayClass, int_array_class.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 299 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 300 | // now that these are registered, we can use AllocClass() and AllocObjectArray |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 301 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 302 | // Setup DexCache. This can not be done later since AppendToBootClassPath calls AllocDexCache. |
| 303 | SirtRef<Class> java_lang_DexCache(AllocClass(java_lang_Class.get(), sizeof(DexCacheClass))); |
| 304 | SetClassRoot(kJavaLangDexCache, java_lang_DexCache.get()); |
| 305 | java_lang_DexCache->SetObjectSize(sizeof(DexCacheClass)); |
| 306 | java_lang_DexCache->SetStatus(Class::kStatusResolved); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 307 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 308 | // Constructor, Field, Method, and AbstractMethod are necessary so that FindClass can link members. |
| 309 | SirtRef<Class> java_lang_reflect_Constructor(AllocClass(java_lang_Class.get(), |
| 310 | sizeof(MethodClass))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 311 | CHECK(java_lang_reflect_Constructor.get() != NULL); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 312 | java_lang_reflect_Constructor->SetObjectSize(sizeof(Constructor)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 313 | SetClassRoot(kJavaLangReflectConstructor, java_lang_reflect_Constructor.get()); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 314 | java_lang_reflect_Constructor->SetStatus(Class::kStatusResolved); |
| 315 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 316 | SirtRef<Class> java_lang_reflect_Field(AllocClass(java_lang_Class.get(), sizeof(FieldClass))); |
| 317 | CHECK(java_lang_reflect_Field.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 318 | java_lang_reflect_Field->SetObjectSize(sizeof(Field)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 319 | SetClassRoot(kJavaLangReflectField, java_lang_reflect_Field.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 320 | java_lang_reflect_Field->SetStatus(Class::kStatusResolved); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 321 | Field::SetClass(java_lang_reflect_Field.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 322 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 323 | SirtRef<Class> java_lang_reflect_Method(AllocClass(java_lang_Class.get(), sizeof(MethodClass))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 324 | CHECK(java_lang_reflect_Method.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 325 | java_lang_reflect_Method->SetObjectSize(sizeof(Method)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 326 | SetClassRoot(kJavaLangReflectMethod, java_lang_reflect_Method.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 327 | java_lang_reflect_Method->SetStatus(Class::kStatusResolved); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 328 | |
| 329 | SirtRef<Class> java_lang_reflect_AbstractMethod(AllocClass(java_lang_Class.get(), |
| 330 | sizeof(MethodClass))); |
| 331 | CHECK(java_lang_reflect_AbstractMethod.get() != NULL); |
| 332 | java_lang_reflect_AbstractMethod->SetObjectSize(sizeof(AbstractMethod)); |
| 333 | SetClassRoot(kJavaLangReflectAbstractMethod, java_lang_reflect_AbstractMethod.get()); |
| 334 | java_lang_reflect_AbstractMethod->SetStatus(Class::kStatusResolved); |
| 335 | AbstractMethod::SetClasses(java_lang_reflect_Constructor.get(), java_lang_reflect_Method.get()); |
| 336 | |
| 337 | // Set up array classes for string, field, method |
| 338 | SirtRef<Class> object_array_string(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 339 | object_array_string->SetComponentType(java_lang_String.get()); |
| 340 | SetClassRoot(kJavaLangStringArrayClass, object_array_string.get()); |
| 341 | |
| 342 | SirtRef<Class> object_array_field(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 343 | object_array_field->SetComponentType(java_lang_reflect_Field.get()); |
| 344 | SetClassRoot(kJavaLangReflectFieldArrayClass, object_array_field.get()); |
| 345 | |
| 346 | SirtRef<Class> object_array_abstract_method(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 347 | object_array_abstract_method->SetComponentType(java_lang_reflect_AbstractMethod.get()); |
| 348 | SetClassRoot(kJavaLangReflectAbstractMethodArrayClass, object_array_abstract_method.get()); |
| 349 | |
| 350 | // setup boot_class_path_ and register class_path now that we can |
| 351 | // use AllocObjectArray to create DexCache instances |
| 352 | // Needs to be after String, Field, Method arrays since AllocDexCache uses these roots. |
| 353 | CHECK_NE(0U, boot_class_path.size()); |
| 354 | for (size_t i = 0; i != boot_class_path.size(); ++i) { |
| 355 | const DexFile* dex_file = boot_class_path[i]; |
| 356 | CHECK(dex_file != NULL); |
| 357 | AppendToBootClassPath(*dex_file); |
| 358 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 359 | |
| 360 | // now we can use FindSystemClass |
| 361 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 362 | // run char class through InitializePrimitiveClass to finish init |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 363 | InitializePrimitiveClass(char_class.get(), Primitive::kPrimChar); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 364 | SetClassRoot(kPrimitiveChar, char_class.get()); // needs descriptor |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 365 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 366 | // Object, String and DexCache need to be rerun through FindSystemClass to finish init |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 367 | java_lang_Object->SetStatus(Class::kStatusNotReady); |
| 368 | Class* Object_class = FindSystemClass("Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 369 | CHECK_EQ(java_lang_Object.get(), Object_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 370 | CHECK_EQ(java_lang_Object->GetObjectSize(), sizeof(Object)); |
| 371 | java_lang_String->SetStatus(Class::kStatusNotReady); |
| 372 | Class* String_class = FindSystemClass("Ljava/lang/String;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 373 | CHECK_EQ(java_lang_String.get(), String_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 374 | CHECK_EQ(java_lang_String->GetObjectSize(), sizeof(String)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 375 | java_lang_DexCache->SetStatus(Class::kStatusNotReady); |
| 376 | Class* DexCache_class = FindSystemClass("Ljava/lang/DexCache;"); |
| 377 | CHECK_EQ(java_lang_String.get(), String_class); |
| 378 | CHECK_EQ(java_lang_DexCache.get(), DexCache_class); |
| 379 | CHECK_EQ(java_lang_DexCache->GetObjectSize(), sizeof(DexCache)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 380 | |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 381 | // Setup the primitive array type classes - can't be done until Object has a vtable |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 382 | SetClassRoot(kBooleanArrayClass, FindSystemClass("[Z")); |
| 383 | BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 384 | |
| 385 | SetClassRoot(kByteArrayClass, FindSystemClass("[B")); |
| 386 | ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 387 | |
| 388 | Class* found_char_array_class = FindSystemClass("[C"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 389 | CHECK_EQ(char_array_class.get(), found_char_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 390 | |
| 391 | SetClassRoot(kShortArrayClass, FindSystemClass("[S")); |
| 392 | ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
| 393 | |
| 394 | Class* found_int_array_class = FindSystemClass("[I"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 395 | CHECK_EQ(int_array_class.get(), found_int_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 396 | |
| 397 | SetClassRoot(kLongArrayClass, FindSystemClass("[J")); |
| 398 | LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 399 | |
| 400 | SetClassRoot(kFloatArrayClass, FindSystemClass("[F")); |
| 401 | FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 402 | |
| 403 | SetClassRoot(kDoubleArrayClass, FindSystemClass("[D")); |
| 404 | DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 405 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 406 | Class* found_class_array_class = FindSystemClass("[Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 407 | CHECK_EQ(class_array_class.get(), found_class_array_class); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 408 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 409 | Class* found_object_array_class = FindSystemClass("[Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 410 | CHECK_EQ(object_array_class.get(), found_object_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 411 | |
| 412 | // Setup the single, global copies of "interfaces" and "iftable" |
| 413 | Class* java_lang_Cloneable = FindSystemClass("Ljava/lang/Cloneable;"); |
| 414 | CHECK(java_lang_Cloneable != NULL); |
| 415 | Class* java_io_Serializable = FindSystemClass("Ljava/io/Serializable;"); |
| 416 | CHECK(java_io_Serializable != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 417 | // We assume that Cloneable/Serializable don't have superinterfaces -- |
| 418 | // normally we'd have to crawl up and explicitly list all of the |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 419 | // supers as well. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 420 | array_iftable_->Set(0, AllocInterfaceEntry(java_lang_Cloneable)); |
| 421 | array_iftable_->Set(1, AllocInterfaceEntry(java_io_Serializable)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 422 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 423 | // Sanity check Class[] and Object[]'s interfaces |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 424 | ClassHelper kh(class_array_class.get(), this); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 425 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 426 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 427 | kh.ChangeClass(object_array_class.get()); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 428 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 429 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 430 | // run Class, Constructor, Field, and Method through FindSystemClass. |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 431 | // this initializes their dex_cache_ fields and register them in classes_. |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 432 | Class* Class_class = FindSystemClass("Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 433 | CHECK_EQ(java_lang_Class.get(), Class_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 434 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 435 | java_lang_reflect_AbstractMethod->SetStatus(Class::kStatusNotReady); |
| 436 | Class* Abstract_method_class = FindSystemClass("Ljava/lang/reflect/AbstractMethod;"); |
| 437 | CHECK_EQ(java_lang_reflect_AbstractMethod.get(), Abstract_method_class); |
| 438 | |
| 439 | // Method extends AbstractMethod so must reset after. |
| 440 | java_lang_reflect_Method->SetStatus(Class::kStatusNotReady); |
| 441 | Class* Method_class = FindSystemClass("Ljava/lang/reflect/Method;"); |
| 442 | CHECK_EQ(java_lang_reflect_Method.get(), Method_class); |
| 443 | |
| 444 | // Constructor extends AbstractMethod so must reset after. |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 445 | java_lang_reflect_Constructor->SetStatus(Class::kStatusNotReady); |
| 446 | Class* Constructor_class = FindSystemClass("Ljava/lang/reflect/Constructor;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 447 | CHECK_EQ(java_lang_reflect_Constructor.get(), Constructor_class); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 448 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 449 | java_lang_reflect_Field->SetStatus(Class::kStatusNotReady); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 450 | Class* Field_class = FindSystemClass("Ljava/lang/reflect/Field;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 451 | CHECK_EQ(java_lang_reflect_Field.get(), Field_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 452 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 453 | Class* String_array_class = FindSystemClass(class_roots_descriptors_[kJavaLangStringArrayClass]); |
| 454 | CHECK_EQ(object_array_string.get(), String_array_class); |
| 455 | |
| 456 | Class* Field_array_class = FindSystemClass(class_roots_descriptors_[kJavaLangReflectFieldArrayClass]); |
| 457 | CHECK_EQ(object_array_field.get(), Field_array_class); |
| 458 | |
| 459 | Class* Abstract_method_array_class = |
| 460 | FindSystemClass(class_roots_descriptors_[kJavaLangReflectAbstractMethodArrayClass]); |
| 461 | CHECK_EQ(object_array_abstract_method.get(), Abstract_method_array_class); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 462 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 463 | // End of special init trickery, subsequent classes may be loaded via FindSystemClass |
| 464 | |
| 465 | // Create java.lang.reflect.Proxy root |
| 466 | Class* java_lang_reflect_Proxy = FindSystemClass("Ljava/lang/reflect/Proxy;"); |
| 467 | SetClassRoot(kJavaLangReflectProxy, java_lang_reflect_Proxy); |
| 468 | |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 469 | // java.lang.ref classes need to be specially flagged, but otherwise are normal classes |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 470 | Class* java_lang_ref_Reference = FindSystemClass("Ljava/lang/ref/Reference;"); |
| 471 | SetClassRoot(kJavaLangRefReference, java_lang_ref_Reference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 472 | Class* java_lang_ref_FinalizerReference = FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 473 | java_lang_ref_FinalizerReference->SetAccessFlags( |
| 474 | java_lang_ref_FinalizerReference->GetAccessFlags() | |
| 475 | kAccClassIsReference | kAccClassIsFinalizerReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 476 | Class* java_lang_ref_PhantomReference = FindSystemClass("Ljava/lang/ref/PhantomReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 477 | java_lang_ref_PhantomReference->SetAccessFlags( |
| 478 | java_lang_ref_PhantomReference->GetAccessFlags() | |
| 479 | kAccClassIsReference | kAccClassIsPhantomReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 480 | Class* java_lang_ref_SoftReference = FindSystemClass("Ljava/lang/ref/SoftReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 481 | java_lang_ref_SoftReference->SetAccessFlags( |
| 482 | java_lang_ref_SoftReference->GetAccessFlags() | kAccClassIsReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 483 | Class* java_lang_ref_WeakReference = FindSystemClass("Ljava/lang/ref/WeakReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 484 | java_lang_ref_WeakReference->SetAccessFlags( |
| 485 | java_lang_ref_WeakReference->GetAccessFlags() | |
| 486 | kAccClassIsReference | kAccClassIsWeakReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 487 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 488 | // Setup the ClassLoader, verifying the object_size_ |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 489 | Class* java_lang_ClassLoader = FindSystemClass("Ljava/lang/ClassLoader;"); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 490 | CHECK_EQ(java_lang_ClassLoader->GetObjectSize(), sizeof(ClassLoader)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 491 | SetClassRoot(kJavaLangClassLoader, java_lang_ClassLoader); |
| 492 | |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 493 | // Set up java.lang.Throwable, java.lang.ClassNotFoundException, and |
| 494 | // java.lang.StackTraceElement as a convenience |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 495 | SetClassRoot(kJavaLangThrowable, FindSystemClass("Ljava/lang/Throwable;")); |
| 496 | Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 497 | SetClassRoot(kJavaLangClassNotFoundException, FindSystemClass("Ljava/lang/ClassNotFoundException;")); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 498 | SetClassRoot(kJavaLangStackTraceElement, FindSystemClass("Ljava/lang/StackTraceElement;")); |
| 499 | SetClassRoot(kJavaLangStackTraceElementArrayClass, FindSystemClass("[Ljava/lang/StackTraceElement;")); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 500 | StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 501 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 502 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 503 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 504 | VLOG(startup) << "ClassLinker::InitFromCompiler exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 505 | } |
| 506 | |
| 507 | void ClassLinker::FinishInit() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 508 | VLOG(startup) << "ClassLinker::FinishInit entering"; |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 509 | |
| 510 | // Let the heap know some key offsets into java.lang.ref instances |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 511 | // Note: we hard code the field indexes here rather than using FindInstanceField |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 512 | // as the types of the field can't be resolved prior to the runtime being |
| 513 | // fully initialized |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 514 | Class* java_lang_ref_Reference = GetClassRoot(kJavaLangRefReference); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 515 | Class* java_lang_ref_ReferenceQueue = FindSystemClass("Ljava/lang/ref/ReferenceQueue;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 516 | Class* java_lang_ref_FinalizerReference = FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
| 517 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 518 | const DexFile& java_lang_dex = FindDexFile(java_lang_ref_Reference->GetDexCache()); |
| 519 | |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 520 | Field* pendingNext = java_lang_ref_Reference->GetInstanceField(0); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 521 | FieldHelper fh(pendingNext, this); |
| 522 | CHECK_STREQ(fh.GetName(), "pendingNext"); |
| 523 | CHECK_EQ(java_lang_dex.GetFieldId(pendingNext->GetDexFieldIndex()).type_idx_, |
| 524 | java_lang_ref_Reference->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 525 | |
| 526 | Field* queue = java_lang_ref_Reference->GetInstanceField(1); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 527 | fh.ChangeField(queue); |
| 528 | CHECK_STREQ(fh.GetName(), "queue"); |
| 529 | CHECK_EQ(java_lang_dex.GetFieldId(queue->GetDexFieldIndex()).type_idx_, |
| 530 | java_lang_ref_ReferenceQueue->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 531 | |
| 532 | Field* queueNext = java_lang_ref_Reference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 533 | fh.ChangeField(queueNext); |
| 534 | CHECK_STREQ(fh.GetName(), "queueNext"); |
| 535 | CHECK_EQ(java_lang_dex.GetFieldId(queueNext->GetDexFieldIndex()).type_idx_, |
| 536 | java_lang_ref_Reference->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 537 | |
| 538 | Field* referent = java_lang_ref_Reference->GetInstanceField(3); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 539 | fh.ChangeField(referent); |
| 540 | CHECK_STREQ(fh.GetName(), "referent"); |
| 541 | CHECK_EQ(java_lang_dex.GetFieldId(referent->GetDexFieldIndex()).type_idx_, |
| 542 | GetClassRoot(kJavaLangObject)->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 543 | |
| 544 | Field* zombie = java_lang_ref_FinalizerReference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 545 | fh.ChangeField(zombie); |
| 546 | CHECK_STREQ(fh.GetName(), "zombie"); |
| 547 | CHECK_EQ(java_lang_dex.GetFieldId(zombie->GetDexFieldIndex()).type_idx_, |
| 548 | GetClassRoot(kJavaLangObject)->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 549 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 550 | Heap* heap = Runtime::Current()->GetHeap(); |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 551 | heap->SetReferenceOffsets(referent->GetOffset(), |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 552 | queue->GetOffset(), |
| 553 | queueNext->GetOffset(), |
| 554 | pendingNext->GetOffset(), |
| 555 | zombie->GetOffset()); |
| 556 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 557 | // ensure all class_roots_ are initialized |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 558 | for (size_t i = 0; i < kClassRootsMax; i++) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 559 | ClassRoot class_root = static_cast<ClassRoot>(i); |
| 560 | Class* klass = GetClassRoot(class_root); |
| 561 | CHECK(klass != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 562 | DCHECK(klass->IsArrayClass() || klass->IsPrimitive() || klass->GetDexCache() != NULL); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 563 | // note SetClassRoot does additional validation. |
| 564 | // if possible add new checks there to catch errors early |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 565 | } |
| 566 | |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 567 | CHECK(array_iftable_ != NULL); |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 568 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 569 | // disable the slow paths in FindClass and CreatePrimitiveClass now |
| 570 | // that Object, Class, and Object[] are setup |
| 571 | init_done_ = true; |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 572 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 573 | VLOG(startup) << "ClassLinker::FinishInit exiting"; |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 574 | } |
| 575 | |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 576 | void ClassLinker::RunRootClinits() { |
| 577 | Thread* self = Thread::Current(); |
| 578 | for (size_t i = 0; i < ClassLinker::kClassRootsMax; ++i) { |
| 579 | Class* c = GetClassRoot(ClassRoot(i)); |
| 580 | if (!c->IsArrayClass() && !c->IsPrimitive()) { |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 581 | EnsureInitialized(GetClassRoot(ClassRoot(i)), true, true); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 582 | self->AssertNoPendingException(); |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 583 | } |
| 584 | } |
| 585 | } |
| 586 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 587 | bool ClassLinker::GenerateOatFile(const std::string& dex_filename, |
| 588 | int oat_fd, |
| 589 | const std::string& oat_cache_filename) { |
Brian Carlstrom | a56fcd6 | 2012-02-04 21:23:01 -0800 | [diff] [blame] | 590 | std::string dex2oat_string(GetAndroidRoot()); |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 591 | dex2oat_string += (kIsDebugBuild ? "/bin/dex2oatd" : "/bin/dex2oat"); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 592 | const char* dex2oat = dex2oat_string.c_str(); |
| 593 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 594 | const char* class_path = Runtime::Current()->GetClassPathString().c_str(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 595 | |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 596 | Heap* heap = Runtime::Current()->GetHeap(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 597 | std::string boot_image_option_string("--boot-image="); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 598 | boot_image_option_string += heap->GetImageSpace()->GetImageFilename(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 599 | const char* boot_image_option = boot_image_option_string.c_str(); |
| 600 | |
| 601 | std::string dex_file_option_string("--dex-file="); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 602 | dex_file_option_string += dex_filename; |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 603 | const char* dex_file_option = dex_file_option_string.c_str(); |
| 604 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 605 | std::string oat_fd_option_string("--oat-fd="); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 606 | StringAppendF(&oat_fd_option_string, "%d", oat_fd); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 607 | const char* oat_fd_option = oat_fd_option_string.c_str(); |
| 608 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 609 | std::string oat_location_option_string("--oat-location="); |
| 610 | oat_location_option_string += oat_cache_filename; |
| 611 | const char* oat_location_option = oat_location_option_string.c_str(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 612 | |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 613 | // fork and exec dex2oat |
| 614 | pid_t pid = fork(); |
| 615 | if (pid == 0) { |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 616 | // no allocation allowed between fork and exec |
Ian Rogers | 725aee5 | 2012-01-11 11:56:56 -0800 | [diff] [blame] | 617 | |
| 618 | // change process groups, so we don't get reaped by ProcessManager |
| 619 | setpgid(0, 0); |
| 620 | |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 621 | VLOG(class_linker) << dex2oat |
| 622 | << " --runtime-arg -Xms64m" |
| 623 | << " --runtime-arg -Xmx64m" |
| 624 | << " --runtime-arg -classpath" |
| 625 | << " --runtime-arg " << class_path |
| 626 | << " " << boot_image_option |
| 627 | << " " << dex_file_option |
| 628 | << " " << oat_fd_option |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 629 | << " " << oat_location_option; |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 630 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 631 | execl(dex2oat, dex2oat, |
jeffhao | 5d84040 | 2011-10-24 17:09:45 -0700 | [diff] [blame] | 632 | "--runtime-arg", "-Xms64m", |
| 633 | "--runtime-arg", "-Xmx64m", |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 634 | "--runtime-arg", "-classpath", |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 635 | "--runtime-arg", class_path, |
| 636 | boot_image_option, |
| 637 | dex_file_option, |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 638 | oat_fd_option, |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 639 | oat_location_option, |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 640 | NULL); |
| 641 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 642 | PLOG(FATAL) << "execl(" << dex2oat << ") failed"; |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 643 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 644 | } else { |
| 645 | // wait for dex2oat to finish |
| 646 | int status; |
| 647 | pid_t got_pid = TEMP_FAILURE_RETRY(waitpid(pid, &status, 0)); |
| 648 | if (got_pid != pid) { |
| 649 | PLOG(ERROR) << "waitpid failed: wanted " << pid << ", got " << got_pid; |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 650 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 651 | } |
| 652 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 653 | LOG(ERROR) << dex2oat << " failed with dex-file=" << dex_filename; |
| 654 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 655 | } |
| 656 | } |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 657 | return true; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 658 | } |
| 659 | |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 660 | void ClassLinker::RegisterOatFile(const OatFile& oat_file) { |
| 661 | MutexLock mu(dex_lock_); |
| 662 | RegisterOatFileLocked(oat_file); |
| 663 | } |
| 664 | |
| 665 | void ClassLinker::RegisterOatFileLocked(const OatFile& oat_file) { |
| 666 | dex_lock_.AssertHeld(); |
| 667 | oat_files_.push_back(&oat_file); |
| 668 | } |
| 669 | |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 670 | OatFile* ClassLinker::OpenOat(const ImageSpace* space) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 671 | MutexLock mu(dex_lock_); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 672 | const Runtime* runtime = Runtime::Current(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 673 | const ImageHeader& image_header = space->GetImageHeader(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 674 | // Grab location but don't use Object::AsString as we haven't yet initialized the roots to |
| 675 | // check the down cast |
| 676 | String* oat_location = down_cast<String*>(image_header.GetImageRoot(ImageHeader::kOatLocation)); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 677 | std::string oat_filename; |
| 678 | oat_filename += runtime->GetHostPrefix(); |
| 679 | oat_filename += oat_location->ToModifiedUtf8(); |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 680 | OatFile* oat_file = OatFile::Open(oat_filename, oat_filename, |
| 681 | image_header.GetOatBegin(), |
| 682 | OatFile::kRelocNone); |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 683 | VLOG(startup) << "ClassLinker::OpenOat entering oat_filename=" << oat_filename; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 684 | if (oat_file == NULL) { |
Brian Carlstrom | a9f1978 | 2011-10-13 00:14:47 -0700 | [diff] [blame] | 685 | LOG(ERROR) << "Failed to open oat file " << oat_filename << " referenced from image."; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 686 | return NULL; |
| 687 | } |
| 688 | uint32_t oat_checksum = oat_file->GetOatHeader().GetChecksum(); |
| 689 | uint32_t image_oat_checksum = image_header.GetOatChecksum(); |
| 690 | if (oat_checksum != image_oat_checksum) { |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 691 | LOG(ERROR) << "Failed to match oat file checksum " << std::hex << oat_checksum |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 692 | << " to expected oat checksum " << std::hex << oat_checksum |
| 693 | << " in image"; |
| 694 | return NULL; |
| 695 | } |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 696 | RegisterOatFileLocked(*oat_file); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 697 | VLOG(startup) << "ClassLinker::OpenOat exiting"; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 698 | return oat_file; |
| 699 | } |
| 700 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 701 | const OatFile* ClassLinker::FindOpenedOatFileForDexFile(const DexFile& dex_file) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 702 | MutexLock mu(dex_lock_); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 703 | return FindOpenedOatFileFromDexLocation(dex_file.GetLocation()); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 704 | } |
| 705 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 706 | const OatFile* ClassLinker::FindOpenedOatFileFromDexLocation(const std::string& dex_location) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 707 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 708 | const OatFile* oat_file = oat_files_[i]; |
| 709 | DCHECK(oat_file != NULL); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 710 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, false); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 711 | if (oat_dex_file != NULL) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 712 | return oat_file; |
| 713 | } |
| 714 | } |
| 715 | return NULL; |
| 716 | } |
| 717 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 718 | static const DexFile* FindDexFileInOatLocation(const std::string& dex_location, |
| 719 | uint32_t dex_location_checksum, |
| 720 | const std::string& oat_location) { |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 721 | UniquePtr<OatFile> oat_file( |
| 722 | OatFile::Open(oat_location, oat_location, NULL, OatFile::kRelocAll)); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 723 | if (oat_file.get() == NULL) { |
| 724 | return NULL; |
| 725 | } |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 726 | Runtime* runtime = Runtime::Current(); |
| 727 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
| 728 | if (oat_file->GetOatHeader().GetImageFileLocationChecksum() != image_header.GetOatChecksum()) { |
| 729 | return NULL; |
| 730 | } |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 731 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 732 | if (oat_dex_file == NULL) { |
| 733 | return NULL; |
| 734 | } |
| 735 | if (oat_dex_file->GetDexFileLocationChecksum() != dex_location_checksum) { |
| 736 | return NULL; |
| 737 | } |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 738 | runtime->GetClassLinker()->RegisterOatFile(*oat_file.release()); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 739 | return oat_dex_file->OpenDexFile(); |
| 740 | } |
| 741 | |
| 742 | const DexFile* ClassLinker::FindOrCreateOatFileForDexLocation(const std::string& dex_location, |
| 743 | const std::string& oat_location) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 744 | MutexLock mu(dex_lock_); |
| 745 | return FindOrCreateOatFileForDexLocationLocked(dex_location, oat_location); |
| 746 | } |
| 747 | |
| 748 | const DexFile* ClassLinker::FindOrCreateOatFileForDexLocationLocked(const std::string& dex_location, |
| 749 | const std::string& oat_location) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 750 | uint32_t dex_location_checksum; |
| 751 | if (!DexFile::GetChecksum(dex_location, dex_location_checksum)) { |
| 752 | LOG(ERROR) << "Failed to compute checksum '" << dex_location << "'"; |
| 753 | return NULL; |
| 754 | } |
| 755 | |
| 756 | // Check if we already have an up-to-date output file |
| 757 | const DexFile* dex_file = FindDexFileInOatLocation(dex_location, |
| 758 | dex_location_checksum, |
| 759 | oat_location); |
| 760 | if (dex_file != NULL) { |
| 761 | return dex_file; |
| 762 | } |
| 763 | |
| 764 | // Generate the output oat file for the dex file |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 765 | UniquePtr<File> file(OS::OpenFile(oat_location.c_str(), true)); |
| 766 | if (file.get() == NULL) { |
| 767 | LOG(ERROR) << "Failed to create oat file: " << oat_location; |
| 768 | return NULL; |
| 769 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 770 | if (!GenerateOatFile(dex_location, file->Fd(), oat_location)) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 771 | LOG(ERROR) << "Failed to generate oat file: " << oat_location; |
| 772 | return NULL; |
| 773 | } |
| 774 | // Open the oat from file descriptor we passed to GenerateOatFile |
| 775 | if (lseek(file->Fd(), 0, SEEK_SET) != 0) { |
| 776 | LOG(ERROR) << "Failed to seek to start of generated oat file: " << oat_location; |
| 777 | return NULL; |
| 778 | } |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 779 | const OatFile* oat_file = |
| 780 | OatFile::Open(*file.get(), oat_location, NULL, OatFile::kRelocAll); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 781 | if (oat_file == NULL) { |
| 782 | LOG(ERROR) << "Failed to open generated oat file: " << oat_location; |
| 783 | return NULL; |
| 784 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 785 | RegisterOatFileLocked(*oat_file); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 786 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 787 | if (oat_dex_file == NULL) { |
| 788 | LOG(ERROR) << "Failed to find dex file in generated oat file: " << oat_location; |
| 789 | return NULL; |
| 790 | } |
| 791 | return oat_dex_file->OpenDexFile(); |
| 792 | } |
| 793 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 794 | bool ClassLinker::VerifyOatFileChecksums(const OatFile* oat_file, |
| 795 | const std::string& dex_location, |
| 796 | uint32_t dex_location_checksum) { |
| 797 | Runtime* runtime = Runtime::Current(); |
| 798 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
| 799 | uint32_t image_checksum = image_header.GetOatChecksum(); |
| 800 | bool image_check = (oat_file->GetOatHeader().GetImageFileLocationChecksum() == image_checksum); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 801 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 802 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 803 | if (oat_dex_file == NULL) { |
| 804 | LOG(ERROR) << ".oat file " << oat_file->GetLocation() |
| 805 | << " does not contain contents for " << dex_location; |
| 806 | std::vector<const OatFile::OatDexFile*> oat_dex_files = oat_file->GetOatDexFiles(); |
| 807 | for (size_t i = 0; i < oat_dex_files.size(); i++) { |
| 808 | const OatFile::OatDexFile* oat_dex_file = oat_dex_files[i]; |
| 809 | LOG(ERROR) << ".oat file " << oat_file->GetLocation() |
| 810 | << " contains contents for " << oat_dex_file->GetDexFileLocation(); |
| 811 | } |
| 812 | return false; |
| 813 | } |
| 814 | bool dex_check = (dex_location_checksum == oat_dex_file->GetDexFileLocationChecksum()); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 815 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 816 | if (image_check && dex_check) { |
| 817 | return true; |
| 818 | } |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 819 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 820 | if (!image_check) { |
| 821 | std::string image_file(image_header.GetImageRoot( |
| 822 | ImageHeader::kOatLocation)->AsString()->ToModifiedUtf8()); |
| 823 | LOG(WARNING) << ".oat file " << oat_file->GetLocation() |
| 824 | << " checksum ( " << std::hex << oat_dex_file->GetDexFileLocationChecksum() |
| 825 | << ") mismatch with " << image_file |
| 826 | << " (" << std::hex << image_checksum << ")"; |
| 827 | } |
| 828 | if (!dex_check) { |
| 829 | LOG(WARNING) << ".oat file " << oat_file->GetLocation() |
| 830 | << " checksum ( " << std::hex << oat_dex_file->GetDexFileLocationChecksum() |
| 831 | << ") mismatch with " << dex_location |
| 832 | << " (" << std::hex << dex_location_checksum << ")"; |
| 833 | } |
| 834 | return false; |
| 835 | } |
| 836 | |
| 837 | const DexFile* ClassLinker::VerifyAndOpenDexFileFromOatFile(const OatFile* oat_file, |
| 838 | const std::string& dex_location, |
| 839 | uint32_t dex_location_checksum) { |
| 840 | bool verified = VerifyOatFileChecksums(oat_file, dex_location, dex_location_checksum); |
| 841 | if (!verified) { |
| 842 | return NULL; |
| 843 | } |
| 844 | RegisterOatFileLocked(*oat_file); |
| 845 | return oat_file->GetOatDexFile(dex_location)->OpenDexFile(); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 846 | } |
| 847 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 848 | const DexFile* ClassLinker::FindDexFileInOatFileFromDexLocation(const std::string& dex_location) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 849 | MutexLock mu(dex_lock_); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 850 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 851 | const OatFile* open_oat_file = FindOpenedOatFileFromDexLocation(dex_location); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 852 | if (open_oat_file != NULL) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 853 | return open_oat_file->GetOatDexFile(dex_location)->OpenDexFile(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 854 | } |
| 855 | |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 856 | // Look for an existing file next to dex. for example, for |
| 857 | // /foo/bar/baz.jar, look for /foo/bar/baz.jar.oat. |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 858 | std::string oat_filename(OatFile::DexFilenameToOatFilename(dex_location)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 859 | const OatFile* oat_file = FindOatFileFromOatLocationLocked(oat_filename); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 860 | if (oat_file != NULL) { |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 861 | uint32_t dex_location_checksum; |
| 862 | if (!DexFile::GetChecksum(dex_location, dex_location_checksum)) { |
| 863 | // If no classes.dex found in dex_location, it has been stripped, assume oat is up-to-date. |
| 864 | // This is the common case in user builds for jar's and apk's in the /system directory. |
| 865 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 866 | CHECK(oat_dex_file != NULL) << oat_filename << " " << dex_location; |
| 867 | RegisterOatFileLocked(*oat_file); |
| 868 | return oat_dex_file->OpenDexFile(); |
| 869 | } |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 870 | const DexFile* dex_file = VerifyAndOpenDexFileFromOatFile(oat_file, |
| 871 | dex_location, |
| 872 | dex_location_checksum); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 873 | if (dex_file != NULL) { |
| 874 | return dex_file; |
| 875 | } |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 876 | } |
| 877 | // Look for an existing file in the art-cache, validating the result if found |
| 878 | // not found in /foo/bar/baz.oat? try /data/art-cache/foo@bar@baz.oat |
| 879 | std::string cache_location(GetArtCacheFilenameOrDie(oat_filename)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 880 | oat_file = FindOatFileFromOatLocationLocked(cache_location); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 881 | if (oat_file != NULL) { |
| 882 | uint32_t dex_location_checksum; |
| 883 | if (!DexFile::GetChecksum(dex_location, dex_location_checksum)) { |
| 884 | LOG(WARNING) << "Failed to compute checksum: " << dex_location; |
| 885 | return NULL; |
| 886 | } |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 887 | const DexFile* dex_file = VerifyAndOpenDexFileFromOatFile(oat_file, |
| 888 | dex_location, |
| 889 | dex_location_checksum); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 890 | if (dex_file != NULL) { |
| 891 | return dex_file; |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 892 | } |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 893 | if (TEMP_FAILURE_RETRY(unlink(oat_file->GetLocation().c_str())) != 0) { |
Brian Carlstrom | 5ef7493 | 2012-03-23 17:56:02 -0700 | [diff] [blame] | 894 | PLOG(FATAL) << "Failed to remove obsolete .oat file " << oat_file->GetLocation(); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 895 | } |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 896 | } |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 897 | LOG(INFO) << "Failed to open oat file from " << oat_filename << " or " << cache_location << "."; |
| 898 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 899 | // Try to generate oat file if it wasn't found or was obsolete. |
| 900 | std::string oat_cache_filename(GetArtCacheFilenameOrDie(oat_filename)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 901 | return FindOrCreateOatFileForDexLocationLocked(dex_location, oat_cache_filename); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 902 | } |
| 903 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 904 | const OatFile* ClassLinker::FindOpenedOatFileFromOatLocation(const std::string& oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 905 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 906 | const OatFile* oat_file = oat_files_[i]; |
| 907 | DCHECK(oat_file != NULL); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 908 | if (oat_file->GetLocation() == oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 909 | return oat_file; |
| 910 | } |
| 911 | } |
Brian Carlstrom | fad7143 | 2011-10-16 20:25:10 -0700 | [diff] [blame] | 912 | return NULL; |
| 913 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 914 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 915 | const OatFile* ClassLinker::FindOatFileFromOatLocation(const std::string& oat_location) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 916 | MutexLock mu(dex_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 917 | return FindOatFileFromOatLocationLocked(oat_location); |
| 918 | } |
| 919 | |
| 920 | const OatFile* ClassLinker::FindOatFileFromOatLocationLocked(const std::string& oat_location) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 921 | const OatFile* oat_file = FindOpenedOatFileFromOatLocation(oat_location); |
| 922 | if (oat_file != NULL) { |
| 923 | return oat_file; |
| 924 | } |
| 925 | |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 926 | oat_file = OatFile::Open(oat_location, oat_location, NULL, |
| 927 | OatFile::kRelocAll); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 928 | if (oat_file == NULL) { |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 929 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 930 | } |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 931 | CHECK(oat_file != NULL) << oat_location; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 932 | return oat_file; |
| 933 | } |
| 934 | |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 935 | void ClassLinker::InitFromImage() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 936 | VLOG(startup) << "ClassLinker::InitFromImage entering"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 937 | CHECK(!init_done_); |
| 938 | |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 939 | Heap* heap = Runtime::Current()->GetHeap(); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 940 | ImageSpace* space = heap->GetImageSpace(); |
| 941 | OatFile* oat_file = OpenOat(space); |
| 942 | CHECK(oat_file != NULL) << "Failed to open oat file for image"; |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 943 | CHECK_EQ(oat_file->GetOatHeader().GetImageFileLocationChecksum(), 0U); |
Elliott Hughes | 7484741 | 2012-06-20 18:10:21 -0700 | [diff] [blame] | 944 | CHECK(oat_file->GetOatHeader().GetImageFileLocation().empty()); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 945 | Object* dex_caches_object = space->GetImageHeader().GetImageRoot(ImageHeader::kDexCaches); |
| 946 | ObjectArray<DexCache>* dex_caches = dex_caches_object->AsObjectArray<DexCache>(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 947 | |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 948 | // Special case of setting up the String class early so that we can test arbitrary objects |
| 949 | // as being Strings or not |
| 950 | Class* java_lang_String = space->GetImageHeader().GetImageRoot(ImageHeader::kClassRoots) |
| 951 | ->AsObjectArray<Class>()->Get(kJavaLangString); |
| 952 | String::SetClass(java_lang_String); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 953 | |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 954 | CHECK_EQ(oat_file->GetOatHeader().GetDexFileCount(), |
| 955 | static_cast<uint32_t>(dex_caches->GetLength())); |
| 956 | for (int i = 0; i < dex_caches->GetLength(); i++) { |
| 957 | SirtRef<DexCache> dex_cache(dex_caches->Get(i)); |
| 958 | const std::string& dex_file_location(dex_cache->GetLocation()->ToModifiedUtf8()); |
| 959 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file_location); |
| 960 | const DexFile* dex_file = oat_dex_file->OpenDexFile(); |
| 961 | if (dex_file == NULL) { |
| 962 | LOG(FATAL) << "Failed to open dex file " << dex_file_location |
| 963 | << " from within oat file " << oat_file->GetLocation(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 964 | } |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 965 | |
| 966 | CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); |
| 967 | |
| 968 | AppendToBootClassPath(*dex_file, dex_cache); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 969 | } |
| 970 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 971 | // reinit clases_ table |
Mathieu Chartier | 357e9be | 2012-08-01 11:00:14 -0700 | [diff] [blame] | 972 | { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 973 | ReaderMutexLock mu(*Locks::heap_bitmap_lock_); |
Mathieu Chartier | 357e9be | 2012-08-01 11:00:14 -0700 | [diff] [blame] | 974 | heap->FlushAllocStack(); |
| 975 | const Spaces& vec = heap->GetSpaces(); |
| 976 | // TODO: C++0x auto |
| 977 | for (Spaces::const_iterator it = vec.begin(); it != vec.end(); ++it) { |
| 978 | (*it)->GetLiveBitmap()->Walk(InitFromImageCallback, this); |
| 979 | } |
Mathieu Chartier | b062fdd | 2012-07-03 09:51:48 -0700 | [diff] [blame] | 980 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 981 | |
| 982 | // reinit class_roots_ |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 983 | Object* class_roots_object = |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 984 | heap->GetImageSpace()->GetImageHeader().GetImageRoot(ImageHeader::kClassRoots); |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 985 | class_roots_ = class_roots_object->AsObjectArray<Class>(); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 986 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 987 | // reinit array_iftable_ from any array class instance, they should be == |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 988 | array_iftable_ = GetClassRoot(kObjectArrayClass)->GetIfTable(); |
| 989 | DCHECK(array_iftable_ == GetClassRoot(kBooleanArrayClass)->GetIfTable()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 990 | // String class root was set above |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 991 | Field::SetClass(GetClassRoot(kJavaLangReflectField)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 992 | AbstractMethod::SetClasses(GetClassRoot(kJavaLangReflectConstructor), |
| 993 | GetClassRoot(kJavaLangReflectMethod)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 994 | BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 995 | ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 996 | CharArray::SetArrayClass(GetClassRoot(kCharArrayClass)); |
| 997 | DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 998 | FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 999 | IntArray::SetArrayClass(GetClassRoot(kIntArrayClass)); |
| 1000 | LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 1001 | ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 1002 | Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1003 | StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1004 | |
| 1005 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 1006 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1007 | VLOG(startup) << "ClassLinker::InitFromImage exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1008 | } |
| 1009 | |
Brian Carlstrom | 78128a6 | 2011-09-15 17:21:19 -0700 | [diff] [blame] | 1010 | void ClassLinker::InitFromImageCallback(Object* obj, void* arg) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1011 | DCHECK(obj != NULL); |
| 1012 | DCHECK(arg != NULL); |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 1013 | ClassLinker* class_linker = reinterpret_cast<ClassLinker*>(arg); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1014 | |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1015 | if (obj->GetClass()->IsStringClass()) { |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 1016 | class_linker->intern_table_->RegisterStrong(obj->AsString()); |
Brian Carlstrom | c74255f | 2011-09-11 22:47:39 -0700 | [diff] [blame] | 1017 | return; |
| 1018 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1019 | if (obj->IsClass()) { |
| 1020 | // restore class to ClassLinker::classes_ table |
| 1021 | Class* klass = obj->AsClass(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1022 | ClassHelper kh(klass, class_linker); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1023 | Class* existing = class_linker->InsertClass(kh.GetDescriptor(), klass, true); |
| 1024 | DCHECK(existing == NULL) << kh.GetDescriptor(); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1025 | return; |
| 1026 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1027 | } |
| 1028 | |
| 1029 | // Keep in sync with InitCallback. Anything we visit, we need to |
| 1030 | // reinit references to when reinitializing a ClassLinker from a |
| 1031 | // mapped image. |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 1032 | void ClassLinker::VisitRoots(Heap::RootVisitor* visitor, void* arg) const { |
| 1033 | visitor(class_roots_, arg); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1034 | |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1035 | { |
| 1036 | MutexLock mu(dex_lock_); |
| 1037 | for (size_t i = 0; i < dex_caches_.size(); i++) { |
| 1038 | visitor(dex_caches_[i], arg); |
| 1039 | } |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1040 | } |
| 1041 | |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1042 | { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1043 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1044 | typedef Table::const_iterator It; // TODO: C++0x auto |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1045 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 1046 | visitor(it->second, arg); |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1047 | } |
Mathieu Chartier | 262e5ff | 2012-06-01 17:35:38 -0700 | [diff] [blame] | 1048 | |
| 1049 | // We deliberately ignore the class roots in the image since we |
| 1050 | // handle image roots by using the MS/CMS rescanning of dirty cards. |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1051 | } |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1052 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1053 | visitor(array_iftable_, arg); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1054 | } |
| 1055 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1056 | void ClassLinker::VisitClasses(ClassVisitor* visitor, void* arg) const { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1057 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1058 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 1059 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
| 1060 | if (!visitor(it->second, arg)) { |
| 1061 | return; |
| 1062 | } |
| 1063 | } |
| 1064 | for (It it = image_classes_.begin(), end = image_classes_.end(); it != end; ++it) { |
| 1065 | if (!visitor(it->second, arg)) { |
| 1066 | return; |
| 1067 | } |
| 1068 | } |
| 1069 | } |
| 1070 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1071 | static bool GetClassesVisitor(Class* c, void* arg) { |
| 1072 | std::set<Class*>* classes = reinterpret_cast<std::set<Class*>*>(arg); |
| 1073 | classes->insert(c); |
| 1074 | return true; |
| 1075 | } |
| 1076 | |
| 1077 | void ClassLinker::VisitClassesWithoutClassesLock(ClassVisitor* visitor, void* arg) const { |
| 1078 | std::set<Class*> classes; |
| 1079 | VisitClasses(GetClassesVisitor, &classes); |
| 1080 | typedef std::set<Class*>::const_iterator It; // TODO: C++0x auto |
| 1081 | for (It it = classes.begin(), end = classes.end(); it != end; ++it) { |
| 1082 | if (!visitor(*it, arg)) { |
| 1083 | return; |
| 1084 | } |
| 1085 | } |
| 1086 | } |
| 1087 | |
| 1088 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1089 | ClassLinker::~ClassLinker() { |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1090 | String::ResetClass(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1091 | Field::ResetClass(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1092 | AbstractMethod::ResetClasses(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1093 | BooleanArray::ResetArrayClass(); |
| 1094 | ByteArray::ResetArrayClass(); |
| 1095 | CharArray::ResetArrayClass(); |
| 1096 | DoubleArray::ResetArrayClass(); |
| 1097 | FloatArray::ResetArrayClass(); |
| 1098 | IntArray::ResetArrayClass(); |
| 1099 | LongArray::ResetArrayClass(); |
| 1100 | ShortArray::ResetArrayClass(); |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 1101 | Throwable::ResetClass(); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1102 | StackTraceElement::ResetClass(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1103 | STLDeleteElements(&boot_class_path_); |
| 1104 | STLDeleteElements(&oat_files_); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1105 | } |
| 1106 | |
| 1107 | DexCache* ClassLinker::AllocDexCache(const DexFile& dex_file) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1108 | Heap* heap = Runtime::Current()->GetHeap(); |
| 1109 | Class* dex_cache_class = GetClassRoot(kJavaLangDexCache); |
| 1110 | SirtRef<DexCache> dex_cache( |
| 1111 | down_cast<DexCache*>(heap->AllocObject(dex_cache_class, dex_cache_class->GetObjectSize()))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1112 | if (dex_cache.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1113 | return NULL; |
| 1114 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1115 | SirtRef<String> location(intern_table_->InternStrong(dex_file.GetLocation().c_str())); |
| 1116 | if (location.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1117 | return NULL; |
| 1118 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1119 | SirtRef<ObjectArray<String> > strings(AllocStringArray(dex_file.NumStringIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1120 | if (strings.get() == NULL) { |
| 1121 | return NULL; |
| 1122 | } |
| 1123 | SirtRef<ObjectArray<Class> > types(AllocClassArray(dex_file.NumTypeIds())); |
| 1124 | if (types.get() == NULL) { |
| 1125 | return NULL; |
| 1126 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1127 | SirtRef<ObjectArray<AbstractMethod> > methods(AllocMethodArray(dex_file.NumMethodIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1128 | if (methods.get() == NULL) { |
| 1129 | return NULL; |
| 1130 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1131 | SirtRef<ObjectArray<Field> > fields(AllocFieldArray(dex_file.NumFieldIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1132 | if (fields.get() == NULL) { |
| 1133 | return NULL; |
| 1134 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1135 | SirtRef<ObjectArray<StaticStorageBase> > initialized_static_storage(AllocObjectArray<StaticStorageBase>(dex_file.NumTypeIds())); |
| 1136 | if (initialized_static_storage.get() == NULL) { |
| 1137 | return NULL; |
| 1138 | } |
| 1139 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1140 | dex_cache->Init(&dex_file, |
| 1141 | location.get(), |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1142 | strings.get(), |
| 1143 | types.get(), |
| 1144 | methods.get(), |
| 1145 | fields.get(), |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1146 | initialized_static_storage.get()); |
| 1147 | return dex_cache.get(); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1148 | } |
| 1149 | |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1150 | InterfaceEntry* ClassLinker::AllocInterfaceEntry(Class* interface) { |
| 1151 | DCHECK(interface->IsInterface()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1152 | SirtRef<ObjectArray<Object> > array(AllocObjectArray<Object>(InterfaceEntry::LengthAsArray())); |
| 1153 | SirtRef<InterfaceEntry> interface_entry(down_cast<InterfaceEntry*>(array.get())); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1154 | interface_entry->SetInterface(interface); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1155 | return interface_entry.get(); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1156 | } |
| 1157 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1158 | Class* ClassLinker::AllocClass(Class* java_lang_Class, size_t class_size) { |
| 1159 | DCHECK_GE(class_size, sizeof(Class)); |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 1160 | Heap* heap = Runtime::Current()->GetHeap(); |
| 1161 | SirtRef<Class> klass(heap->AllocObject(java_lang_Class, class_size)->AsClass()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1162 | klass->SetPrimitiveType(Primitive::kPrimNot); // default to not being primitive |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1163 | klass->SetClassSize(class_size); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1164 | return klass.get(); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1165 | } |
| 1166 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1167 | Class* ClassLinker::AllocClass(size_t class_size) { |
| 1168 | return AllocClass(GetClassRoot(kJavaLangClass), class_size); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1169 | } |
| 1170 | |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 1171 | Field* ClassLinker::AllocField() { |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 1172 | return down_cast<Field*>(GetClassRoot(kJavaLangReflectField)->AllocObject()); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1173 | } |
| 1174 | |
| 1175 | Method* ClassLinker::AllocMethod() { |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 1176 | return down_cast<Method*>(GetClassRoot(kJavaLangReflectMethod)->AllocObject()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1177 | } |
| 1178 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1179 | Constructor* ClassLinker::AllocConstructor() { |
| 1180 | return down_cast<Constructor*>(GetClassRoot(kJavaLangReflectConstructor)->AllocObject()); |
| 1181 | } |
| 1182 | |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1183 | ObjectArray<StackTraceElement>* ClassLinker::AllocStackTraceElementArray(size_t length) { |
| 1184 | return ObjectArray<StackTraceElement>::Alloc( |
| 1185 | GetClassRoot(kJavaLangStackTraceElementArrayClass), |
| 1186 | length); |
| 1187 | } |
| 1188 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1189 | static Class* EnsureResolved(Class* klass) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1190 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1191 | DCHECK(klass != NULL); |
| 1192 | // Wait for the class if it has not already been linked. |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1193 | Thread* self = Thread::Current(); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1194 | if (!klass->IsResolved() && !klass->IsErroneous()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1195 | ObjectLock lock(klass); |
| 1196 | // Check for circular dependencies between classes. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1197 | if (!klass->IsResolved() && klass->GetClinitThreadId() == self->GetTid()) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 1198 | self->ThrowNewException("Ljava/lang/ClassCircularityError;", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1199 | PrettyDescriptor(klass).c_str()); |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 1200 | klass->SetStatus(Class::kStatusError); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1201 | return NULL; |
| 1202 | } |
| 1203 | // Wait for the pending initialization to complete. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1204 | while (!klass->IsResolved() && !klass->IsErroneous()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1205 | lock.Wait(); |
| 1206 | } |
| 1207 | } |
| 1208 | if (klass->IsErroneous()) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1209 | ThrowEarlierClassFailure(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1210 | return NULL; |
| 1211 | } |
| 1212 | // Return the loaded class. No exceptions should be pending. |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1213 | CHECK(klass->IsResolved()) << PrettyClass(klass); |
| 1214 | CHECK(!self->IsExceptionPending()) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1215 | << PrettyClass(klass) << " " << PrettyTypeOf(self->GetException()) << "\n" |
| 1216 | << self->GetException()->Dump(); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1217 | return klass; |
| 1218 | } |
| 1219 | |
Elliott Hughes | db7d5e9 | 2011-12-16 18:47:37 -0800 | [diff] [blame] | 1220 | Class* ClassLinker::FindSystemClass(const char* descriptor) { |
| 1221 | return FindClass(descriptor, NULL); |
| 1222 | } |
| 1223 | |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1224 | Class* ClassLinker::FindClass(const char* descriptor, ClassLoader* class_loader) { |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 1225 | DCHECK_NE(*descriptor, '\0') << "descriptor is empty string"; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1226 | Thread* self = Thread::Current(); |
| 1227 | DCHECK(self != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1228 | self->AssertNoPendingException(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1229 | if (descriptor[1] == '\0') { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1230 | // only the descriptors of primitive types should be 1 character long, also avoid class lookup |
| 1231 | // for primitive classes that aren't backed by dex files. |
| 1232 | return FindPrimitiveClass(descriptor[0]); |
| 1233 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1234 | // Find the class in the loaded classes table. |
| 1235 | Class* klass = LookupClass(descriptor, class_loader); |
| 1236 | if (klass != NULL) { |
| 1237 | return EnsureResolved(klass); |
| 1238 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1239 | // Class is not yet loaded. |
| 1240 | if (descriptor[0] == '[') { |
| 1241 | return CreateArrayClass(descriptor, class_loader); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1242 | |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1243 | } else if (class_loader == NULL) { |
| 1244 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, boot_class_path_); |
| 1245 | if (pair.second != NULL) { |
| 1246 | return DefineClass(descriptor, NULL, *pair.first, *pair.second); |
| 1247 | } |
| 1248 | |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 1249 | } else if (Runtime::Current()->UseCompileTimeClassPath()) { |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1250 | // first try the boot class path |
| 1251 | Class* system_class = FindSystemClass(descriptor); |
| 1252 | if (system_class != NULL) { |
| 1253 | return system_class; |
| 1254 | } |
| 1255 | CHECK(self->IsExceptionPending()); |
| 1256 | self->ClearException(); |
| 1257 | |
| 1258 | // next try the compile time class path |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1259 | const std::vector<const DexFile*>* class_path; |
| 1260 | { |
| 1261 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 1262 | ScopedLocalRef<jobject> jclass_loader(soa.Env(), soa.AddLocalReference<jobject>(class_loader)); |
| 1263 | class_path = &Runtime::Current()->GetCompileTimeClassPath(jclass_loader.get()); |
| 1264 | } |
| 1265 | |
| 1266 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, *class_path); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1267 | if (pair.second != NULL) { |
| 1268 | return DefineClass(descriptor, class_loader, *pair.first, *pair.second); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1269 | } |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1270 | |
| 1271 | } else { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1272 | ScopedObjectAccessUnchecked soa(self->GetJniEnv()); |
| 1273 | ScopedLocalRef<jobject> class_loader_object(soa.Env(), |
| 1274 | soa.AddLocalReference<jobject>(class_loader)); |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 1275 | std::string class_name_string(DescriptorToDot(descriptor)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1276 | ScopedLocalRef<jobject> result(soa.Env(), NULL); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1277 | { |
| 1278 | ScopedThreadStateChange tsc(self, kNative); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1279 | ScopedLocalRef<jobject> class_name_object(soa.Env(), |
| 1280 | soa.Env()->NewStringUTF(class_name_string.c_str())); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1281 | if (class_name_object.get() == NULL) { |
| 1282 | return NULL; |
| 1283 | } |
| 1284 | CHECK(class_loader_object.get() != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1285 | result.reset(soa.Env()->CallObjectMethod(class_loader_object.get(), |
| 1286 | WellKnownClasses::java_lang_ClassLoader_loadClass, |
| 1287 | class_name_object.get())); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1288 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1289 | if (soa.Env()->ExceptionCheck()) { |
Elliott Hughes | 748382f | 2012-01-26 18:07:38 -0800 | [diff] [blame] | 1290 | // If the ClassLoader threw, pass that exception up. |
| 1291 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1292 | } else if (result.get() == NULL) { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1293 | // broken loader - throw NPE to be compatible with Dalvik |
| 1294 | ThrowNullPointerException("ClassLoader.loadClass returned null for %s", |
| 1295 | class_name_string.c_str()); |
| 1296 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1297 | } else { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1298 | // success, return Class* |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1299 | return soa.Decode<Class*>(result.get()); |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1300 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1301 | } |
| 1302 | |
Elliott Hughes | 82914b6 | 2012-04-09 15:56:29 -0700 | [diff] [blame] | 1303 | ThrowNoClassDefFoundError("Class %s not found", PrintableString(descriptor).c_str()); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1304 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1305 | } |
| 1306 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1307 | Class* ClassLinker::DefineClass(const StringPiece& descriptor, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1308 | ClassLoader* class_loader, |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1309 | const DexFile& dex_file, |
| 1310 | const DexFile::ClassDef& dex_class_def) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1311 | SirtRef<Class> klass(NULL); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1312 | // Load the class from the dex file. |
| 1313 | if (!init_done_) { |
| 1314 | // finish up init of hand crafted class_roots_ |
| 1315 | if (descriptor == "Ljava/lang/Object;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1316 | klass.reset(GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1317 | } else if (descriptor == "Ljava/lang/Class;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1318 | klass.reset(GetClassRoot(kJavaLangClass)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1319 | } else if (descriptor == "Ljava/lang/String;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1320 | klass.reset(GetClassRoot(kJavaLangString)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1321 | } else if (descriptor == "Ljava/lang/DexCache;") { |
| 1322 | klass.reset(GetClassRoot(kJavaLangDexCache)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1323 | } else if (descriptor == "Ljava/lang/reflect/Field;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1324 | klass.reset(GetClassRoot(kJavaLangReflectField)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1325 | } else if (descriptor == "Ljava/lang/reflect/AbstractMethod;") { |
| 1326 | klass.reset(GetClassRoot(kJavaLangReflectAbstractMethod)); |
| 1327 | } else if (descriptor == "Ljava/lang/reflect/Constructor;") { |
| 1328 | klass.reset(GetClassRoot(kJavaLangReflectConstructor)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1329 | } else if (descriptor == "Ljava/lang/reflect/Method;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1330 | klass.reset(GetClassRoot(kJavaLangReflectMethod)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1331 | } else { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1332 | klass.reset(AllocClass(SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1333 | } |
| 1334 | } else { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1335 | klass.reset(AllocClass(SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1336 | } |
| 1337 | klass->SetDexCache(FindDexCache(dex_file)); |
| 1338 | LoadClass(dex_file, dex_class_def, klass, class_loader); |
| 1339 | // Check for a pending exception during load |
| 1340 | Thread* self = Thread::Current(); |
| 1341 | if (self->IsExceptionPending()) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 1342 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1343 | return NULL; |
| 1344 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1345 | ObjectLock lock(klass.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1346 | klass->SetClinitThreadId(self->GetTid()); |
| 1347 | // Add the newly loaded class to the loaded classes table. |
Brian Carlstrom | 01e076e | 2012-03-30 11:54:16 -0700 | [diff] [blame] | 1348 | SirtRef<Class> existing(InsertClass(descriptor, klass.get(), false)); |
| 1349 | if (existing.get() != NULL) { |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1350 | // We failed to insert because we raced with another thread. |
Brian Carlstrom | 01e076e | 2012-03-30 11:54:16 -0700 | [diff] [blame] | 1351 | return EnsureResolved(existing.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1352 | } |
| 1353 | // Finish loading (if necessary) by finding parents |
| 1354 | CHECK(!klass->IsLoaded()); |
| 1355 | if (!LoadSuperAndInterfaces(klass, dex_file)) { |
| 1356 | // Loading failed. |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1357 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1358 | lock.NotifyAll(); |
| 1359 | return NULL; |
| 1360 | } |
| 1361 | CHECK(klass->IsLoaded()); |
| 1362 | // Link the class (if necessary) |
| 1363 | CHECK(!klass->IsResolved()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1364 | if (!LinkClass(klass, NULL)) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1365 | // Linking failed. |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1366 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1367 | lock.NotifyAll(); |
| 1368 | return NULL; |
| 1369 | } |
| 1370 | CHECK(klass->IsResolved()); |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 1371 | |
| 1372 | /* |
| 1373 | * We send CLASS_PREPARE events to the debugger from here. The |
| 1374 | * definition of "preparation" is creating the static fields for a |
| 1375 | * class and initializing them to the standard default values, but not |
| 1376 | * executing any code (that comes later, during "initialization"). |
| 1377 | * |
| 1378 | * We did the static preparation in LinkClass. |
| 1379 | * |
| 1380 | * The class has been prepared and resolved but possibly not yet verified |
| 1381 | * at this point. |
| 1382 | */ |
| 1383 | Dbg::PostClassPrepare(klass.get()); |
| 1384 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1385 | return klass.get(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1386 | } |
| 1387 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1388 | // Precomputes size that will be needed for Class, matching LinkStaticFields |
| 1389 | size_t ClassLinker::SizeOfClass(const DexFile& dex_file, |
| 1390 | const DexFile::ClassDef& dex_class_def) { |
| 1391 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1392 | size_t num_ref = 0; |
| 1393 | size_t num_32 = 0; |
| 1394 | size_t num_64 = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1395 | if (class_data != NULL) { |
| 1396 | for (ClassDataItemIterator it(dex_file, class_data); it.HasNextStaticField(); it.Next()) { |
| 1397 | const DexFile::FieldId& field_id = dex_file.GetFieldId(it.GetMemberIndex()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1398 | const char* descriptor = dex_file.GetFieldTypeDescriptor(field_id); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1399 | char c = descriptor[0]; |
| 1400 | if (c == 'L' || c == '[') { |
| 1401 | num_ref++; |
| 1402 | } else if (c == 'J' || c == 'D') { |
| 1403 | num_64++; |
| 1404 | } else { |
| 1405 | num_32++; |
| 1406 | } |
| 1407 | } |
| 1408 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1409 | // start with generic class data |
| 1410 | size_t size = sizeof(Class); |
| 1411 | // follow with reference fields which must be contiguous at start |
| 1412 | size += (num_ref * sizeof(uint32_t)); |
| 1413 | // if there are 64-bit fields to add, make sure they are aligned |
| 1414 | if (num_64 != 0 && size != RoundUp(size, 8)) { // for 64-bit alignment |
| 1415 | if (num_32 != 0) { |
| 1416 | // use an available 32-bit field for padding |
| 1417 | num_32--; |
| 1418 | } |
| 1419 | size += sizeof(uint32_t); // either way, we are adding a word |
| 1420 | DCHECK_EQ(size, RoundUp(size, 8)); |
| 1421 | } |
| 1422 | // tack on any 64-bit fields now that alignment is assured |
| 1423 | size += (num_64 * sizeof(uint64_t)); |
| 1424 | // tack on any remaining 32-bit fields |
| 1425 | size += (num_32 * sizeof(uint32_t)); |
| 1426 | return size; |
| 1427 | } |
| 1428 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1429 | const OatFile::OatClass* ClassLinker::GetOatClass(const DexFile& dex_file, const char* descriptor) { |
| 1430 | DCHECK(descriptor != NULL); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1431 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
| 1432 | CHECK(oat_file != NULL) << dex_file.GetLocation() << " " << descriptor; |
| 1433 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation()); |
| 1434 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation() << " " << descriptor; |
| 1435 | uint32_t class_def_index; |
| 1436 | bool found = dex_file.FindClassDefIndex(descriptor, class_def_index); |
| 1437 | CHECK(found) << dex_file.GetLocation() << " " << descriptor; |
| 1438 | const OatFile::OatClass* oat_class = oat_dex_file->GetOatClass(class_def_index); |
| 1439 | CHECK(oat_class != NULL) << dex_file.GetLocation() << " " << descriptor; |
| 1440 | return oat_class; |
| 1441 | } |
| 1442 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1443 | const OatFile::OatMethod ClassLinker::GetOatMethodFor(const AbstractMethod* method) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1444 | // Although we overwrite the trampoline of non-static methods, we may get here via the resolution |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1445 | // method for direct methods (or virtual methods made direct). |
| 1446 | Class* declaring_class = method->GetDeclaringClass(); |
| 1447 | size_t oat_method_index; |
| 1448 | if (method->IsStatic() || method->IsDirect()) { |
| 1449 | // Simple case where the oat method index was stashed at load time. |
| 1450 | oat_method_index = method->GetMethodIndex(); |
| 1451 | } else { |
| 1452 | // We're invoking a virtual method directly (thanks to sharpening), compute the oat_method_index |
| 1453 | // by search for its position in the declared virtual methods. |
| 1454 | oat_method_index = declaring_class->NumDirectMethods(); |
| 1455 | size_t end = declaring_class->NumVirtualMethods(); |
| 1456 | bool found = false; |
| 1457 | for (size_t i = 0; i < end; i++) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1458 | if (declaring_class->GetVirtualMethod(i) == method) { |
| 1459 | found = true; |
| 1460 | break; |
| 1461 | } |
Ian Rogers | f320b63 | 2012-03-13 18:47:47 -0700 | [diff] [blame] | 1462 | oat_method_index++; |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1463 | } |
| 1464 | CHECK(found) << "Didn't find oat method index for virtual method: " << PrettyMethod(method); |
| 1465 | } |
| 1466 | ClassHelper kh(declaring_class); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1467 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(kh.GetDexFile(), kh.GetDescriptor())); |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1468 | CHECK(oat_class.get() != NULL); |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1469 | return oat_class->GetOatMethod(oat_method_index); |
| 1470 | } |
| 1471 | |
| 1472 | // Special case to get oat code without overwriting a trampoline. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1473 | const void* ClassLinker::GetOatCodeFor(const AbstractMethod* method) { |
TDYa127 | ccffd9e | 2012-04-08 14:37:03 -0700 | [diff] [blame] | 1474 | CHECK(Runtime::Current()->IsCompiler() || method->GetDeclaringClass()->IsInitializing()); |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1475 | return GetOatMethodFor(method).GetCode(); |
| 1476 | } |
| 1477 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1478 | void ClassLinker::FixupStaticTrampolines(Class* klass) { |
| 1479 | ClassHelper kh(klass); |
| 1480 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
| 1481 | CHECK(dex_class_def != NULL); |
| 1482 | const DexFile& dex_file = kh.GetDexFile(); |
| 1483 | const byte* class_data = dex_file.GetClassData(*dex_class_def); |
| 1484 | if (class_data == NULL) { |
| 1485 | return; // no fields or methods - for example a marker interface |
| 1486 | } |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1487 | if (!Runtime::Current()->IsStarted() || Runtime::Current()->UseCompileTimeClassPath()) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1488 | // OAT file unavailable |
| 1489 | return; |
| 1490 | } |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1491 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(dex_file, kh.GetDescriptor())); |
| 1492 | CHECK(oat_class.get() != NULL); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1493 | ClassDataItemIterator it(dex_file, class_data); |
| 1494 | // Skip fields |
| 1495 | while (it.HasNextStaticField()) { |
| 1496 | it.Next(); |
| 1497 | } |
| 1498 | while (it.HasNextInstanceField()) { |
| 1499 | it.Next(); |
| 1500 | } |
| 1501 | size_t method_index = 0; |
| 1502 | // Link the code of methods skipped by LinkCode |
| 1503 | const void* trampoline = Runtime::Current()->GetResolutionStubArray(Runtime::kStaticMethod)->GetData(); |
| 1504 | for (size_t i = 0; it.HasNextDirectMethod(); i++, it.Next()) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1505 | AbstractMethod* method = klass->GetDirectMethod(i); |
jeffhao | b5e8185 | 2012-03-12 11:15:45 -0700 | [diff] [blame] | 1506 | if (Runtime::Current()->IsMethodTracingActive()) { |
| 1507 | Trace* tracer = Runtime::Current()->GetTracer(); |
| 1508 | if (tracer->GetSavedCodeFromMap(method) == trampoline) { |
| 1509 | const void* code = oat_class->GetOatMethod(method_index).GetCode(); |
| 1510 | tracer->ResetSavedCode(method); |
| 1511 | method->SetCode(code); |
| 1512 | tracer->SaveAndUpdateCode(method); |
| 1513 | } |
| 1514 | } else if (method->GetCode() == trampoline) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1515 | const void* code = oat_class->GetOatMethod(method_index).GetCode(); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 1516 | CHECK(code != NULL) |
| 1517 | << "Resolving a static trampoline but found no code for: " << PrettyMethod(method); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1518 | method->SetCode(code); |
| 1519 | } |
| 1520 | method_index++; |
| 1521 | } |
| 1522 | } |
| 1523 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1524 | static void LinkCode(SirtRef<AbstractMethod>& method, const OatFile::OatClass* oat_class, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1525 | uint32_t method_index) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1526 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1527 | // Every kind of method should at least get an invoke stub from the oat_method. |
| 1528 | // non-abstract methods also get their code pointers. |
| 1529 | const OatFile::OatMethod oat_method = oat_class->GetOatMethod(method_index); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1530 | oat_method.LinkMethodPointers(method.get()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1531 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1532 | Runtime* runtime = Runtime::Current(); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1533 | if (method->IsAbstract()) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1534 | method->SetCode(runtime->GetAbstractMethodErrorStubArray()->GetData()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1535 | return; |
| 1536 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1537 | |
| 1538 | if (method->IsStatic() && !method->IsConstructor()) { |
| 1539 | // For static methods excluding the class initializer, install the trampoline |
| 1540 | method->SetCode(runtime->GetResolutionStubArray(Runtime::kStaticMethod)->GetData()); |
Ian Rogers | 0d6de04 | 2012-02-29 08:50:26 -0800 | [diff] [blame] | 1541 | } |
| 1542 | if (method->IsNative()) { |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1543 | // unregistering restores the dlsym lookup stub |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1544 | method->UnregisterNative(Thread::Current()); |
jeffhao | 26c0a1a | 2012-01-17 16:28:33 -0800 | [diff] [blame] | 1545 | } |
| 1546 | |
| 1547 | if (Runtime::Current()->IsMethodTracingActive()) { |
jeffhao | 26c0a1a | 2012-01-17 16:28:33 -0800 | [diff] [blame] | 1548 | Trace* tracer = Runtime::Current()->GetTracer(); |
jeffhao | b5e8185 | 2012-03-12 11:15:45 -0700 | [diff] [blame] | 1549 | tracer->SaveAndUpdateCode(method.get()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1550 | } |
| 1551 | } |
| 1552 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1553 | void ClassLinker::LoadClass(const DexFile& dex_file, |
| 1554 | const DexFile::ClassDef& dex_class_def, |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1555 | SirtRef<Class>& klass, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1556 | ClassLoader* class_loader) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1557 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1558 | CHECK(klass->GetDexCache() != NULL); |
| 1559 | CHECK_EQ(Class::kStatusNotReady, klass->GetStatus()); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1560 | const char* descriptor = dex_file.GetClassDescriptor(dex_class_def); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1561 | CHECK(descriptor != NULL); |
| 1562 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1563 | klass->SetClass(GetClassRoot(kJavaLangClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1564 | uint32_t access_flags = dex_class_def.access_flags_; |
Elliott Hughes | 582a7d1 | 2011-10-10 18:38:42 -0700 | [diff] [blame] | 1565 | // Make sure that none of our runtime-only flags are set. |
| 1566 | CHECK_EQ(access_flags & ~kAccJavaFlagsMask, 0U); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1567 | klass->SetAccessFlags(access_flags); |
| 1568 | klass->SetClassLoader(class_loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1569 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1570 | klass->SetStatus(Class::kStatusIdx); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1571 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1572 | klass->SetDexTypeIndex(dex_class_def.class_idx_); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1573 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1574 | // Load fields fields. |
| 1575 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
| 1576 | if (class_data == NULL) { |
| 1577 | return; // no fields or methods - for example a marker interface |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1578 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1579 | ClassDataItemIterator it(dex_file, class_data); |
| 1580 | if (it.NumStaticFields() != 0) { |
| 1581 | klass->SetSFields(AllocObjectArray<Field>(it.NumStaticFields())); |
| 1582 | } |
| 1583 | if (it.NumInstanceFields() != 0) { |
| 1584 | klass->SetIFields(AllocObjectArray<Field>(it.NumInstanceFields())); |
| 1585 | } |
| 1586 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
| 1587 | SirtRef<Field> sfield(AllocField()); |
| 1588 | klass->SetStaticField(i, sfield.get()); |
| 1589 | LoadField(dex_file, it, klass, sfield); |
| 1590 | } |
| 1591 | for (size_t i = 0; it.HasNextInstanceField(); i++, it.Next()) { |
| 1592 | SirtRef<Field> ifield(AllocField()); |
| 1593 | klass->SetInstanceField(i, ifield.get()); |
| 1594 | LoadField(dex_file, it, klass, ifield); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1595 | } |
| 1596 | |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1597 | UniquePtr<const OatFile::OatClass> oat_class; |
| 1598 | if (Runtime::Current()->IsStarted() && !Runtime::Current()->UseCompileTimeClassPath()) { |
| 1599 | oat_class.reset(GetOatClass(dex_file, descriptor)); |
| 1600 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1601 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1602 | // Load methods. |
| 1603 | if (it.NumDirectMethods() != 0) { |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1604 | // TODO: append direct methods to class object |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1605 | klass->SetDirectMethods(AllocObjectArray<AbstractMethod>(it.NumDirectMethods())); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1606 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1607 | if (it.NumVirtualMethods() != 0) { |
| 1608 | // TODO: append direct methods to class object |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1609 | klass->SetVirtualMethods(AllocObjectArray<AbstractMethod>(it.NumVirtualMethods())); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1610 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1611 | size_t class_def_method_index = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1612 | for (size_t i = 0; it.HasNextDirectMethod(); i++, it.Next()) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1613 | SirtRef<AbstractMethod> method(LoadMethod(dex_file, it, klass)); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1614 | klass->SetDirectMethod(i, method.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1615 | if (oat_class.get() != NULL) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1616 | LinkCode(method, oat_class.get(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1617 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1618 | method->SetMethodIndex(class_def_method_index); |
| 1619 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1620 | } |
| 1621 | for (size_t i = 0; it.HasNextVirtualMethod(); i++, it.Next()) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1622 | SirtRef<AbstractMethod> method(LoadMethod(dex_file, it, klass)); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1623 | klass->SetVirtualMethod(i, method.get()); |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1624 | DCHECK_EQ(class_def_method_index, it.NumDirectMethods() + i); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1625 | if (oat_class.get() != NULL) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1626 | LinkCode(method, oat_class.get(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1627 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1628 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1629 | } |
| 1630 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1631 | } |
| 1632 | |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 1633 | void ClassLinker::LoadField(const DexFile& /*dex_file*/, const ClassDataItemIterator& it, |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1634 | SirtRef<Class>& klass, SirtRef<Field>& dst) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1635 | uint32_t field_idx = it.GetMemberIndex(); |
| 1636 | dst->SetDexFieldIndex(field_idx); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1637 | dst->SetDeclaringClass(klass.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1638 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1639 | } |
| 1640 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1641 | AbstractMethod* ClassLinker::LoadMethod(const DexFile& dex_file, const ClassDataItemIterator& it, |
| 1642 | SirtRef<Class>& klass) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1643 | uint32_t dex_method_idx = it.GetMemberIndex(); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1644 | const DexFile::MethodId& method_id = dex_file.GetMethodId(dex_method_idx); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1645 | StringPiece method_name(dex_file.GetMethodName(method_id)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1646 | |
| 1647 | AbstractMethod* dst = NULL; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1648 | if (method_name == "<init>") { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1649 | dst = AllocConstructor(); |
| 1650 | } else { |
| 1651 | dst = AllocMethod(); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 1652 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1653 | DCHECK(dst->IsMethod()) << PrettyDescriptor(dst->GetClass()); |
| 1654 | |
| 1655 | const char* old_cause = Thread::Current()->StartAssertNoThreadSuspension("LoadMethod"); |
| 1656 | dst->SetDexMethodIndex(dex_method_idx); |
| 1657 | dst->SetDeclaringClass(klass.get()); |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 1658 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1659 | if (method_name == "finalize") { |
| 1660 | // Create the prototype for a signature of "()V" |
| 1661 | const DexFile::StringId* void_string_id = dex_file.FindStringId("V"); |
| 1662 | if (void_string_id != NULL) { |
| 1663 | const DexFile::TypeId* void_type_id = |
| 1664 | dex_file.FindTypeId(dex_file.GetIndexForStringId(*void_string_id)); |
| 1665 | if (void_type_id != NULL) { |
| 1666 | std::vector<uint16_t> no_args; |
| 1667 | const DexFile::ProtoId* finalizer_proto = |
| 1668 | dex_file.FindProtoId(dex_file.GetIndexForTypeId(*void_type_id), no_args); |
| 1669 | if (finalizer_proto != NULL) { |
| 1670 | // We have the prototype in the dex file |
| 1671 | if (klass->GetClassLoader() != NULL) { // All non-boot finalizer methods are flagged |
| 1672 | klass->SetFinalizable(); |
| 1673 | } else { |
| 1674 | StringPiece klass_descriptor(dex_file.StringByTypeIdx(klass->GetDexTypeIndex())); |
| 1675 | // The Enum class declares a "final" finalize() method to prevent subclasses from |
| 1676 | // introducing a finalizer. We don't want to set the finalizable flag for Enum or its |
| 1677 | // subclasses, so we exclude it here. |
| 1678 | // We also want to avoid setting the flag on Object, where we know that finalize() is |
| 1679 | // empty. |
| 1680 | if (klass_descriptor != "Ljava/lang/Object;" && |
| 1681 | klass_descriptor != "Ljava/lang/Enum;") { |
| 1682 | klass->SetFinalizable(); |
| 1683 | } |
| 1684 | } |
| 1685 | } |
| 1686 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 1687 | } |
Carl Shapiro | 419ec7b | 2011-08-03 14:48:33 -0700 | [diff] [blame] | 1688 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1689 | dst->SetCodeItemOffset(it.GetMethodCodeItemOffset()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1690 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1691 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1692 | dst->SetDexCacheStrings(klass->GetDexCache()->GetStrings()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1693 | dst->SetDexCacheResolvedMethods(klass->GetDexCache()->GetResolvedMethods()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1694 | dst->SetDexCacheResolvedTypes(klass->GetDexCache()->GetResolvedTypes()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1695 | dst->SetDexCacheInitializedStaticStorage(klass->GetDexCache()->GetInitializedStaticStorage()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1696 | |
| 1697 | CHECK(dst->IsMethod()); |
| 1698 | |
| 1699 | Thread::Current()->EndAssertNoThreadSuspension(old_cause); |
| 1700 | return dst; |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1701 | } |
| 1702 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1703 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1704 | SirtRef<DexCache> dex_cache(AllocDexCache(dex_file)); |
| 1705 | AppendToBootClassPath(dex_file, dex_cache); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1706 | } |
| 1707 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1708 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
| 1709 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1710 | boot_class_path_.push_back(&dex_file); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1711 | RegisterDexFile(dex_file, dex_cache); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1712 | } |
| 1713 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1714 | bool ClassLinker::IsDexFileRegisteredLocked(const DexFile& dex_file) const { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1715 | dex_lock_.AssertHeld(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1716 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1717 | if (dex_caches_[i]->GetDexFile() == &dex_file) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1718 | return true; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1719 | } |
| 1720 | } |
| 1721 | return false; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1722 | } |
| 1723 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1724 | bool ClassLinker::IsDexFileRegistered(const DexFile& dex_file) const { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1725 | MutexLock mu(dex_lock_); |
Brian Carlstrom | 0691851 | 2011-10-16 23:39:12 -0700 | [diff] [blame] | 1726 | return IsDexFileRegisteredLocked(dex_file); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1727 | } |
| 1728 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1729 | void ClassLinker::RegisterDexFileLocked(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1730 | dex_lock_.AssertHeld(); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1731 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 1732 | CHECK(dex_cache->GetLocation()->Equals(dex_file.GetLocation())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1733 | dex_caches_.push_back(dex_cache.get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1734 | dex_cache->SetDexFile(&dex_file); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1735 | } |
| 1736 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1737 | void ClassLinker::RegisterDexFile(const DexFile& dex_file) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1738 | { |
| 1739 | MutexLock mu(dex_lock_); |
| 1740 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 1741 | return; |
| 1742 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1743 | } |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1744 | // Don't alloc while holding the lock, since allocation may need to |
| 1745 | // suspend all threads and another thread may need the dex_lock_ to |
| 1746 | // get to a suspend point. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1747 | SirtRef<DexCache> dex_cache(AllocDexCache(dex_file)); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1748 | { |
| 1749 | MutexLock mu(dex_lock_); |
| 1750 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 1751 | return; |
| 1752 | } |
| 1753 | RegisterDexFileLocked(dex_file, dex_cache); |
| 1754 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1755 | } |
| 1756 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1757 | void ClassLinker::RegisterDexFile(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1758 | MutexLock mu(dex_lock_); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1759 | RegisterDexFileLocked(dex_file, dex_cache); |
| 1760 | } |
| 1761 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1762 | // TODO: Remove. |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1763 | const DexFile& ClassLinker::FindDexFile(const DexCache* dex_cache) const { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 1764 | CHECK(dex_cache != NULL); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1765 | const DexFile* dex_file = dex_cache->GetDexFile(); |
| 1766 | if (dex_file == NULL) { |
| 1767 | LOG(FATAL) << "DexCache has no DexFile " << dex_cache->GetLocation()->ToModifiedUtf8(); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1768 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1769 | return *dex_file; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1770 | } |
| 1771 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1772 | DexCache* ClassLinker::FindDexCache(const DexFile& dex_file) const { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1773 | MutexLock mu(dex_lock_); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1774 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1775 | DexCache* dex_cache = dex_caches_[i]; |
| 1776 | if (dex_cache->GetDexFile() == &dex_file) { |
| 1777 | return dex_cache; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1778 | } |
| 1779 | } |
Elliott Hughes | 7b9d996 | 2012-04-20 18:48:18 -0700 | [diff] [blame] | 1780 | LOG(FATAL) << "Failed to find DexCache for DexFile " << dex_file.GetLocation(); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1781 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1782 | } |
| 1783 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1784 | void ClassLinker::FixupDexCaches(AbstractMethod* resolution_method) const { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1785 | MutexLock mu(dex_lock_); |
| 1786 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1787 | dex_caches_[i]->Fixup(resolution_method); |
| 1788 | } |
| 1789 | } |
| 1790 | |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 1791 | Class* ClassLinker::InitializePrimitiveClass(Class* primitive_class, Primitive::Type type) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1792 | CHECK(primitive_class != NULL); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 1793 | ObjectLock lock(primitive_class); // Must hold lock on object when initializing. |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1794 | primitive_class->SetAccessFlags(kAccPublic | kAccFinal | kAccAbstract); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1795 | primitive_class->SetPrimitiveType(type); |
| 1796 | primitive_class->SetStatus(Class::kStatusInitialized); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 1797 | Class* existing = InsertClass(Primitive::Descriptor(type), primitive_class, false); |
| 1798 | CHECK(existing == NULL) << "InitPrimitiveClass(" << type << ") failed"; |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1799 | return primitive_class; |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 1800 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1801 | |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 1802 | // Create an array class (i.e. the class object for the array, not the |
| 1803 | // array itself). "descriptor" looks like "[C" or "[[[[B" or |
| 1804 | // "[Ljava/lang/String;". |
| 1805 | // |
| 1806 | // If "descriptor" refers to an array of primitives, look up the |
| 1807 | // primitive type's internally-generated class object. |
| 1808 | // |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1809 | // "class_loader" is the class loader of the class that's referring to |
| 1810 | // us. It's used to ensure that we're looking for the element type in |
| 1811 | // the right context. It does NOT become the class loader for the |
| 1812 | // array class; that always comes from the base element class. |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 1813 | // |
| 1814 | // Returns NULL with an exception raised on failure. |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1815 | Class* ClassLinker::CreateArrayClass(const std::string& descriptor, ClassLoader* class_loader) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1816 | CHECK_EQ('[', descriptor[0]); |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1817 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1818 | // Identify the underlying component type |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1819 | Class* component_type = FindClass(descriptor.substr(1).c_str(), class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1820 | if (component_type == NULL) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1821 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1822 | return NULL; |
| 1823 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1824 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1825 | // See if the component type is already loaded. Array classes are |
| 1826 | // always associated with the class loader of their underlying |
| 1827 | // element type -- an array of Strings goes with the loader for |
| 1828 | // java/lang/String -- so we need to look for it there. (The |
| 1829 | // caller should have checked for the existence of the class |
| 1830 | // before calling here, but they did so with *their* class loader, |
| 1831 | // not the component type's loader.) |
| 1832 | // |
| 1833 | // If we find it, the caller adds "loader" to the class' initiating |
| 1834 | // loader list, which should prevent us from going through this again. |
| 1835 | // |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1836 | // This call is unnecessary if "loader" and "component_type->GetClassLoader()" |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1837 | // are the same, because our caller (FindClass) just did the |
| 1838 | // lookup. (Even if we get this wrong we still have correct behavior, |
| 1839 | // because we effectively do this lookup again when we add the new |
| 1840 | // class to the hash table --- necessary because of possible races with |
| 1841 | // other threads.) |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1842 | if (class_loader != component_type->GetClassLoader()) { |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1843 | Class* new_class = LookupClass(descriptor.c_str(), component_type->GetClassLoader()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1844 | if (new_class != NULL) { |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1845 | return new_class; |
| 1846 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1847 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1848 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1849 | // Fill out the fields in the Class. |
| 1850 | // |
| 1851 | // It is possible to execute some methods against arrays, because |
| 1852 | // all arrays are subclasses of java_lang_Object_, so we need to set |
| 1853 | // up a vtable. We can just point at the one in java_lang_Object_. |
| 1854 | // |
| 1855 | // Array classes are simple enough that we don't need to do a full |
| 1856 | // link step. |
| 1857 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1858 | SirtRef<Class> new_class(NULL); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1859 | if (!init_done_) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1860 | // Classes that were hand created, ie not by FindSystemClass |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 1861 | if (descriptor == "[Ljava/lang/Class;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1862 | new_class.reset(GetClassRoot(kClassArrayClass)); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 1863 | } else if (descriptor == "[Ljava/lang/Object;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1864 | new_class.reset(GetClassRoot(kObjectArrayClass)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 1865 | } else if (descriptor == class_roots_descriptors_[kJavaLangStringArrayClass]) { |
| 1866 | new_class.reset(GetClassRoot(kJavaLangStringArrayClass)); |
| 1867 | } else if (descriptor == class_roots_descriptors_[kJavaLangReflectFieldArrayClass]) { |
| 1868 | new_class.reset(GetClassRoot(kJavaLangReflectFieldArrayClass)); |
| 1869 | } else if (descriptor == class_roots_descriptors_[kJavaLangReflectAbstractMethodArrayClass]) { |
| 1870 | new_class.reset(GetClassRoot(kJavaLangReflectAbstractMethodArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1871 | } else if (descriptor == "[C") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1872 | new_class.reset(GetClassRoot(kCharArrayClass)); |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 1873 | } else if (descriptor == "[I") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1874 | new_class.reset(GetClassRoot(kIntArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1875 | } |
| 1876 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1877 | if (new_class.get() == NULL) { |
| 1878 | new_class.reset(AllocClass(sizeof(Class))); |
| 1879 | if (new_class.get() == NULL) { |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1880 | return NULL; |
| 1881 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1882 | new_class->SetComponentType(component_type); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1883 | } |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 1884 | ObjectLock lock(new_class.get()); // Must hold lock on object when initializing. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1885 | DCHECK(new_class->GetComponentType() != NULL); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1886 | Class* java_lang_Object = GetClassRoot(kJavaLangObject); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1887 | new_class->SetSuperClass(java_lang_Object); |
| 1888 | new_class->SetVTable(java_lang_Object->GetVTable()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1889 | new_class->SetPrimitiveType(Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1890 | new_class->SetClassLoader(component_type->GetClassLoader()); |
| 1891 | new_class->SetStatus(Class::kStatusInitialized); |
| 1892 | // don't need to set new_class->SetObjectSize(..) |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1893 | // because Object::SizeOf delegates to Array::SizeOf |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1894 | |
| 1895 | |
| 1896 | // All arrays have java/lang/Cloneable and java/io/Serializable as |
| 1897 | // interfaces. We need to set that up here, so that stuff like |
| 1898 | // "instanceof" works right. |
| 1899 | // |
| 1900 | // Note: The GC could run during the call to FindSystemClass, |
| 1901 | // so we need to make sure the class object is GC-valid while we're in |
| 1902 | // there. Do this by clearing the interface list so the GC will just |
| 1903 | // think that the entries are null. |
| 1904 | |
| 1905 | |
| 1906 | // Use the single, global copies of "interfaces" and "iftable" |
| 1907 | // (remember not to free them for arrays). |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 1908 | CHECK(array_iftable_ != NULL); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1909 | new_class->SetIfTable(array_iftable_); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1910 | |
| 1911 | // Inherit access flags from the component type. Arrays can't be |
| 1912 | // used as a superclass or interface, so we want to add "final" |
| 1913 | // and remove "interface". |
| 1914 | // |
| 1915 | // Don't inherit any non-standard flags (e.g., kAccFinal) |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1916 | // from component_type. We assume that the array class does not |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1917 | // override finalize(). |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1918 | new_class->SetAccessFlags(((new_class->GetComponentType()->GetAccessFlags() & |
| 1919 | ~kAccInterface) | kAccFinal) & kAccJavaFlagsMask); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1920 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1921 | Class* existing = InsertClass(descriptor, new_class.get(), false); |
| 1922 | if (existing == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1923 | return new_class.get(); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1924 | } |
| 1925 | // Another thread must have loaded the class after we |
| 1926 | // started but before we finished. Abandon what we've |
| 1927 | // done. |
| 1928 | // |
| 1929 | // (Yes, this happens.) |
| 1930 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1931 | return existing; |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1932 | } |
| 1933 | |
| 1934 | Class* ClassLinker::FindPrimitiveClass(char type) { |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1935 | switch (Primitive::GetType(type)) { |
| 1936 | case Primitive::kPrimByte: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1937 | return GetClassRoot(kPrimitiveByte); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1938 | case Primitive::kPrimChar: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1939 | return GetClassRoot(kPrimitiveChar); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1940 | case Primitive::kPrimDouble: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1941 | return GetClassRoot(kPrimitiveDouble); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1942 | case Primitive::kPrimFloat: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1943 | return GetClassRoot(kPrimitiveFloat); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1944 | case Primitive::kPrimInt: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1945 | return GetClassRoot(kPrimitiveInt); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1946 | case Primitive::kPrimLong: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1947 | return GetClassRoot(kPrimitiveLong); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1948 | case Primitive::kPrimShort: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1949 | return GetClassRoot(kPrimitiveShort); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1950 | case Primitive::kPrimBoolean: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1951 | return GetClassRoot(kPrimitiveBoolean); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1952 | case Primitive::kPrimVoid: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1953 | return GetClassRoot(kPrimitiveVoid); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1954 | case Primitive::kPrimNot: |
| 1955 | break; |
Carl Shapiro | 744ad05 | 2011-08-06 15:53:36 -0700 | [diff] [blame] | 1956 | } |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 1957 | std::string printable_type(PrintableChar(type)); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1958 | ThrowNoClassDefFoundError("Not a primitive type: %s", printable_type.c_str()); |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 1959 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1960 | } |
| 1961 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1962 | Class* ClassLinker::InsertClass(const StringPiece& descriptor, Class* klass, bool image_class) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1963 | if (VLOG_IS_ON(class_linker)) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1964 | DexCache* dex_cache = klass->GetDexCache(); |
| 1965 | std::string source; |
| 1966 | if (dex_cache != NULL) { |
| 1967 | source += " from "; |
| 1968 | source += dex_cache->GetLocation()->ToModifiedUtf8(); |
| 1969 | } |
| 1970 | LOG(INFO) << "Loaded class " << descriptor << source; |
| 1971 | } |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1972 | size_t hash = StringPieceHash()(descriptor); |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1973 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1974 | Table& classes = image_class ? image_classes_ : classes_; |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1975 | Class* existing = LookupClassLocked(descriptor.data(), klass->GetClassLoader(), hash, classes); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1976 | #ifndef NDEBUG |
| 1977 | // Check we don't have the class in the other table in error |
| 1978 | Table& other_classes = image_class ? classes_ : image_classes_; |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1979 | CHECK(LookupClassLocked(descriptor.data(), klass->GetClassLoader(), hash, other_classes) == NULL); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1980 | #endif |
| 1981 | if (existing != NULL) { |
| 1982 | return existing; |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 1983 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1984 | classes.insert(std::make_pair(hash, klass)); |
| 1985 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1986 | } |
| 1987 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1988 | bool ClassLinker::RemoveClass(const char* descriptor, const ClassLoader* class_loader) { |
| 1989 | size_t hash = Hash(descriptor); |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1990 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Elliott Hughes | e5448b5 | 2012-01-18 16:44:06 -0800 | [diff] [blame] | 1991 | typedef Table::iterator It; // TODO: C++0x auto |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1992 | // TODO: determine if its better to search classes_ or image_classes_ first |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1993 | ClassHelper kh; |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1994 | for (It it = classes_.lower_bound(hash), end = classes_.end(); it != end && it->first == hash; ++it) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1995 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1996 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1997 | if (strcmp(kh.GetDescriptor(), descriptor) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1998 | classes_.erase(it); |
| 1999 | return true; |
| 2000 | } |
| 2001 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2002 | for (It it = image_classes_.lower_bound(hash), end = classes_.end(); it != end && it->first == hash; ++it) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2003 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2004 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2005 | if (strcmp(kh.GetDescriptor(), descriptor) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2006 | image_classes_.erase(it); |
| 2007 | return true; |
| 2008 | } |
| 2009 | } |
| 2010 | return false; |
| 2011 | } |
| 2012 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2013 | Class* ClassLinker::LookupClass(const char* descriptor, const ClassLoader* class_loader) { |
| 2014 | size_t hash = Hash(descriptor); |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2015 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2016 | // TODO: determine if its better to search classes_ or image_classes_ first |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2017 | Class* klass = LookupClassLocked(descriptor, class_loader, hash, classes_); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2018 | if (klass != NULL) { |
| 2019 | return klass; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2020 | } |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2021 | return LookupClassLocked(descriptor, class_loader, hash, image_classes_); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2022 | } |
| 2023 | |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2024 | Class* ClassLinker::LookupClassLocked(const char* descriptor, const ClassLoader* class_loader, |
| 2025 | size_t hash, const Table& classes) { |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2026 | ClassHelper kh(NULL, this); |
| 2027 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 2028 | for (It it = classes.lower_bound(hash), end = classes_.end(); it != end && it->first == hash; ++it) { |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2029 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2030 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2031 | if (strcmp(descriptor, kh.GetDescriptor()) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2032 | #ifndef NDEBUG |
| 2033 | for (++it; it != end && it->first == hash; ++it) { |
Ian Rogers | d85016c | 2012-02-03 18:27:34 -0800 | [diff] [blame] | 2034 | Class* klass2 = it->second; |
| 2035 | kh.ChangeClass(klass2); |
| 2036 | CHECK(!(strcmp(descriptor, kh.GetDescriptor()) == 0 && klass2->GetClassLoader() == class_loader)) |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2037 | << PrettyClass(klass) << " " << klass << " " << klass->GetClassLoader() << " " |
Ian Rogers | d85016c | 2012-02-03 18:27:34 -0800 | [diff] [blame] | 2038 | << PrettyClass(klass2) << " " << klass2 << " " << klass2->GetClassLoader(); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2039 | } |
| 2040 | #endif |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2041 | return klass; |
| 2042 | } |
| 2043 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2044 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2045 | } |
| 2046 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2047 | void ClassLinker::LookupClasses(const char* descriptor, std::vector<Class*>& classes) { |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2048 | classes.clear(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2049 | size_t hash = Hash(descriptor); |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2050 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2051 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 2052 | // TODO: determine if its better to search classes_ or image_classes_ first |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2053 | ClassHelper kh(NULL, this); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2054 | for (It it = classes_.lower_bound(hash), end = classes_.end(); it != end && it->first == hash; ++it) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2055 | Class* klass = it->second; |
| 2056 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2057 | if (strcmp(descriptor, kh.GetDescriptor()) == 0) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2058 | classes.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2059 | } |
| 2060 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2061 | for (It it = image_classes_.lower_bound(hash), end = classes_.end(); it != end && it->first == hash; ++it) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2062 | Class* klass = it->second; |
| 2063 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2064 | if (strcmp(descriptor, kh.GetDescriptor()) == 0) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2065 | classes.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2066 | } |
| 2067 | } |
| 2068 | } |
| 2069 | |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2070 | void ClassLinker::VerifyClass(Class* klass) { |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2071 | // TODO: assert that the monitor on the Class is held |
Elliott Hughes | d9c67be | 2012-02-02 19:54:06 -0800 | [diff] [blame] | 2072 | ObjectLock lock(klass); |
| 2073 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2074 | // Don't attempt to re-verify if already sufficiently verified. |
| 2075 | if (klass->IsVerified() || |
| 2076 | (klass->IsCompileTimeVerified() && Runtime::Current()->IsCompiler())) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2077 | return; |
| 2078 | } |
| 2079 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2080 | // The class might already be erroneous, for example at compile time if we attempted to verify |
| 2081 | // this class as a parent to another. |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2082 | if (klass->IsErroneous()) { |
| 2083 | ThrowEarlierClassFailure(klass); |
| 2084 | return; |
| 2085 | } |
| 2086 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2087 | if (klass->GetStatus() == Class::kStatusResolved) { |
| 2088 | klass->SetStatus(Class::kStatusVerifying); |
| 2089 | } else { |
| 2090 | CHECK_EQ(klass->GetStatus(), Class::kStatusRetryVerificationAtRuntime) << PrettyClass(klass); |
| 2091 | CHECK(!Runtime::Current()->IsCompiler()); |
| 2092 | klass->SetStatus(Class::kStatusVerifyingAtRuntime); |
| 2093 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2094 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2095 | // Verify super class. |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2096 | Class* super = klass->GetSuperClass(); |
| 2097 | std::string error_msg; |
| 2098 | if (super != NULL) { |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2099 | // Acquire lock to prevent races on verifying the super class. |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2100 | ObjectLock lock(super); |
| 2101 | |
| 2102 | if (!super->IsVerified() && !super->IsErroneous()) { |
| 2103 | Runtime::Current()->GetClassLinker()->VerifyClass(super); |
| 2104 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2105 | if (!super->IsCompileTimeVerified()) { |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2106 | error_msg = "Rejecting class "; |
| 2107 | error_msg += PrettyDescriptor(klass); |
| 2108 | error_msg += " that attempts to sub-class erroneous class "; |
| 2109 | error_msg += PrettyDescriptor(super); |
| 2110 | LOG(ERROR) << error_msg << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
| 2111 | Thread* self = Thread::Current(); |
| 2112 | SirtRef<Throwable> cause(self->GetException()); |
| 2113 | if (cause.get() != NULL) { |
| 2114 | self->ClearException(); |
| 2115 | } |
| 2116 | self->ThrowNewException("Ljava/lang/VerifyError;", error_msg.c_str()); |
| 2117 | if (cause.get() != NULL) { |
| 2118 | self->GetException()->SetCause(cause.get()); |
| 2119 | } |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2120 | klass->SetStatus(Class::kStatusError); |
| 2121 | return; |
| 2122 | } |
| 2123 | } |
| 2124 | |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2125 | // Try to use verification information from the oat file, otherwise do runtime verification. |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2126 | const DexFile& dex_file = FindDexFile(klass->GetDexCache()); |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2127 | Class::Status oat_file_class_status(Class::kStatusNotReady); |
| 2128 | bool preverified = VerifyClassUsingOatFile(dex_file, klass, oat_file_class_status); |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2129 | verifier::MethodVerifier::FailureKind verifier_failure = verifier::MethodVerifier::kNoFailure; |
jeffhao | ec01423 | 2012-09-05 10:42:25 -0700 | [diff] [blame] | 2130 | if (oat_file_class_status == Class::kStatusError) { |
| 2131 | LOG(WARNING) << "Skipping runtime verification of erroneous class " << PrettyDescriptor(klass) |
| 2132 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
| 2133 | error_msg = "Rejecting class "; |
| 2134 | error_msg += PrettyDescriptor(klass); |
| 2135 | error_msg += " because it failed compile-time verification"; |
| 2136 | Thread::Current()->ThrowNewException("Ljava/lang/VerifyError;", error_msg.c_str()); |
| 2137 | klass->SetStatus(Class::kStatusError); |
| 2138 | return; |
| 2139 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2140 | if (!preverified) { |
| 2141 | verifier_failure = verifier::MethodVerifier::VerifyClass(klass, error_msg); |
| 2142 | } |
| 2143 | if (preverified || verifier_failure != verifier::MethodVerifier::kHardFailure) { |
Ian Rogers | 529781d | 2012-07-23 17:24:29 -0700 | [diff] [blame] | 2144 | if (!preverified && verifier_failure != verifier::MethodVerifier::kNoFailure) { |
| 2145 | LOG(WARNING) << "Soft verification failure in class " << PrettyDescriptor(klass) |
| 2146 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2147 | << " because: " << error_msg; |
| 2148 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2149 | Thread::Current()->AssertNoPendingException(); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2150 | // Make sure all classes referenced by catch blocks are resolved. |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2151 | ResolveClassExceptionHandlerTypes(dex_file, klass); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2152 | if (verifier_failure == verifier::MethodVerifier::kNoFailure) { |
| 2153 | klass->SetStatus(Class::kStatusVerified); |
| 2154 | } else { |
| 2155 | CHECK_EQ(verifier_failure, verifier::MethodVerifier::kSoftFailure); |
| 2156 | // Soft failures at compile time should be retried at runtime. Soft |
| 2157 | // failures at runtime will be handled by slow paths in the generated |
| 2158 | // code. Set status accordingly. |
| 2159 | if (Runtime::Current()->IsCompiler()) { |
| 2160 | klass->SetStatus(Class::kStatusRetryVerificationAtRuntime); |
| 2161 | } else { |
| 2162 | klass->SetStatus(Class::kStatusVerified); |
| 2163 | } |
| 2164 | } |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2165 | } else { |
Ian Rogers | 09f6b56 | 2012-01-31 21:58:52 -0800 | [diff] [blame] | 2166 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(klass) |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2167 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2168 | << " because: " << error_msg; |
Elliott Hughes | d9cdfe9 | 2011-10-06 16:09:04 -0700 | [diff] [blame] | 2169 | Thread* self = Thread::Current(); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2170 | self->AssertNoPendingException(); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2171 | self->ThrowNewException("Ljava/lang/VerifyError;", error_msg.c_str()); |
Elliott Hughes | d9cdfe9 | 2011-10-06 16:09:04 -0700 | [diff] [blame] | 2172 | klass->SetStatus(Class::kStatusError); |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2173 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2174 | } |
| 2175 | |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2176 | bool ClassLinker::VerifyClassUsingOatFile(const DexFile& dex_file, Class* klass, |
| 2177 | Class::Status& oat_file_class_status) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2178 | if (!Runtime::Current()->IsStarted()) { |
| 2179 | return false; |
| 2180 | } |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 2181 | if (Runtime::Current()->UseCompileTimeClassPath()) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2182 | return false; |
| 2183 | } |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2184 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
| 2185 | CHECK(oat_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2186 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation()); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2187 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2188 | const char* descriptor = ClassHelper(klass).GetDescriptor(); |
| 2189 | uint32_t class_def_index; |
| 2190 | bool found = dex_file.FindClassDefIndex(descriptor, class_def_index); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2191 | CHECK(found) << dex_file.GetLocation() << " " << PrettyClass(klass) << " " << descriptor; |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2192 | UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file->GetOatClass(class_def_index)); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2193 | CHECK(oat_class.get() != NULL) |
| 2194 | << dex_file.GetLocation() << " " << PrettyClass(klass) << " " << descriptor; |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2195 | oat_file_class_status = oat_class->GetStatus(); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2196 | if (oat_file_class_status == Class::kStatusVerified || |
| 2197 | oat_file_class_status == Class::kStatusInitialized) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2198 | return true; |
| 2199 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2200 | if (oat_file_class_status == Class::kStatusRetryVerificationAtRuntime) { |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2201 | // Compile time verification failed with a soft error. Compile time verification can fail |
| 2202 | // because we have incomplete type information. Consider the following: |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2203 | // class ... { |
| 2204 | // Foo x; |
| 2205 | // .... () { |
| 2206 | // if (...) { |
| 2207 | // v1 gets assigned a type of resolved class Foo |
| 2208 | // } else { |
| 2209 | // v1 gets assigned a type of unresolved class Bar |
| 2210 | // } |
| 2211 | // iput x = v1 |
| 2212 | // } } |
| 2213 | // when we merge v1 following the if-the-else it results in Conflict |
| 2214 | // (see verifier::RegType::Merge) as we can't know the type of Bar and we could possibly be |
| 2215 | // allowing an unsafe assignment to the field x in the iput (javac may have compiled this as |
| 2216 | // it knew Bar was a sub-class of Foo, but for us this may have been moved into a separate apk |
| 2217 | // at compile time). |
| 2218 | return false; |
| 2219 | } |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2220 | if (oat_file_class_status == Class::kStatusError) { |
| 2221 | // Compile time verification failed with a hard error. This is caused by invalid instructions |
| 2222 | // in the class. These errors are unrecoverable. |
| 2223 | return false; |
| 2224 | } |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2225 | if (oat_file_class_status == Class::kStatusNotReady) { |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2226 | // Status is uninitialized if we couldn't determine the status at compile time, for example, |
| 2227 | // not loading the class. |
| 2228 | // TODO: when the verifier doesn't rely on Class-es failing to resolve/load the type hierarchy |
| 2229 | // isn't a problem and this case shouldn't occur |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2230 | return false; |
| 2231 | } |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2232 | LOG(FATAL) << "Unexpected class status: " << oat_file_class_status |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2233 | << " " << dex_file.GetLocation() << " " << PrettyClass(klass) << " " << descriptor; |
| 2234 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2235 | return false; |
| 2236 | } |
| 2237 | |
| 2238 | void ClassLinker::ResolveClassExceptionHandlerTypes(const DexFile& dex_file, Class* klass) { |
| 2239 | for (size_t i = 0; i < klass->NumDirectMethods(); i++) { |
| 2240 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetDirectMethod(i)); |
| 2241 | } |
| 2242 | for (size_t i = 0; i < klass->NumVirtualMethods(); i++) { |
| 2243 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetVirtualMethod(i)); |
| 2244 | } |
| 2245 | } |
| 2246 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2247 | void ClassLinker::ResolveMethodExceptionHandlerTypes(const DexFile& dex_file, AbstractMethod* method) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2248 | // similar to DexVerifier::ScanTryCatchBlocks and dex2oat's ResolveExceptionsForMethod. |
| 2249 | const DexFile::CodeItem* code_item = dex_file.GetCodeItem(method->GetCodeItemOffset()); |
| 2250 | if (code_item == NULL) { |
| 2251 | return; // native or abstract method |
| 2252 | } |
| 2253 | if (code_item->tries_size_ == 0) { |
| 2254 | return; // nothing to process |
| 2255 | } |
| 2256 | const byte* handlers_ptr = DexFile::GetCatchHandlerData(*code_item, 0); |
| 2257 | uint32_t handlers_size = DecodeUnsignedLeb128(&handlers_ptr); |
| 2258 | ClassLinker* linker = Runtime::Current()->GetClassLinker(); |
| 2259 | for (uint32_t idx = 0; idx < handlers_size; idx++) { |
| 2260 | CatchHandlerIterator iterator(handlers_ptr); |
| 2261 | for (; iterator.HasNext(); iterator.Next()) { |
| 2262 | // Ensure exception types are resolved so that they don't need resolution to be delivered, |
| 2263 | // unresolved exception types will be ignored by exception delivery |
| 2264 | if (iterator.GetHandlerTypeIndex() != DexFile::kDexNoIndex16) { |
| 2265 | Class* exception_type = linker->ResolveType(iterator.GetHandlerTypeIndex(), method); |
| 2266 | if (exception_type == NULL) { |
| 2267 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 2268 | Thread::Current()->ClearException(); |
| 2269 | } |
| 2270 | } |
| 2271 | } |
| 2272 | handlers_ptr = iterator.EndDataPointer(); |
| 2273 | } |
| 2274 | } |
| 2275 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2276 | static void CheckProxyConstructor(AbstractMethod* constructor); |
| 2277 | static void CheckProxyMethod(AbstractMethod* method, SirtRef<AbstractMethod>& prototype); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2278 | |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2279 | Class* ClassLinker::CreateProxyClass(String* name, ObjectArray<Class>* interfaces, |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2280 | ClassLoader* loader, ObjectArray<AbstractMethod>* methods, |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2281 | ObjectArray<ObjectArray<Class> >* throws) { |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2282 | SirtRef<Class> klass(AllocClass(GetClassRoot(kJavaLangClass), sizeof(SynthesizedProxyClass))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2283 | CHECK(klass.get() != NULL); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2284 | DCHECK(klass->GetClass() != NULL); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2285 | klass->SetObjectSize(sizeof(Proxy)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2286 | klass->SetAccessFlags(kAccClassIsProxy | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2287 | klass->SetClassLoader(loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2288 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2289 | klass->SetName(name); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2290 | Class* proxy_class = GetClassRoot(kJavaLangReflectProxy); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2291 | klass->SetDexCache(proxy_class->GetDexCache()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2292 | |
| 2293 | klass->SetStatus(Class::kStatusIdx); |
| 2294 | |
| 2295 | klass->SetDexTypeIndex(DexFile::kDexNoIndex16); |
| 2296 | |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2297 | // Instance fields are inherited, but we add a couple of static fields... |
| 2298 | klass->SetSFields(AllocObjectArray<Field>(2)); |
| 2299 | // 1. Create a static field 'interfaces' that holds the _declared_ interfaces implemented by |
| 2300 | // our proxy, so Class.getInterfaces doesn't return the flattened set. |
| 2301 | SirtRef<Field> interfaces_sfield(AllocField()); |
| 2302 | klass->SetStaticField(0, interfaces_sfield.get()); |
| 2303 | interfaces_sfield->SetDexFieldIndex(0); |
| 2304 | interfaces_sfield->SetDeclaringClass(klass.get()); |
| 2305 | interfaces_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
| 2306 | // 2. Create a static field 'throws' that holds exceptions thrown by our methods. |
| 2307 | SirtRef<Field> throws_sfield(AllocField()); |
| 2308 | klass->SetStaticField(1, throws_sfield.get()); |
| 2309 | throws_sfield->SetDexFieldIndex(1); |
| 2310 | throws_sfield->SetDeclaringClass(klass.get()); |
| 2311 | throws_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2312 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2313 | // Proxies have 1 direct method, the constructor |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2314 | klass->SetDirectMethods(AllocObjectArray<AbstractMethod>(1)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2315 | klass->SetDirectMethod(0, CreateProxyConstructor(klass, proxy_class)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2316 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2317 | // Create virtual method using specified prototypes |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2318 | size_t num_virtual_methods = methods->GetLength(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2319 | klass->SetVirtualMethods(AllocObjectArray<AbstractMethod>(num_virtual_methods)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2320 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2321 | SirtRef<AbstractMethod> prototype(methods->Get(i)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2322 | klass->SetVirtualMethod(i, CreateProxyMethod(klass, prototype)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2323 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2324 | |
| 2325 | klass->SetSuperClass(proxy_class); // The super class is java.lang.reflect.Proxy |
| 2326 | klass->SetStatus(Class::kStatusLoaded); // Class is now effectively in the loaded state |
| 2327 | DCHECK(!Thread::Current()->IsExceptionPending()); |
| 2328 | |
| 2329 | // Link the fields and virtual methods, creating vtable and iftables |
| 2330 | if (!LinkClass(klass, interfaces)) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 2331 | klass->SetStatus(Class::kStatusError); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2332 | return NULL; |
| 2333 | } |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2334 | { |
| 2335 | ObjectLock lock(klass.get()); // Must hold lock on object when initializing. |
| 2336 | interfaces_sfield->SetObject(NULL, interfaces); |
| 2337 | throws_sfield->SetObject(NULL, throws); |
| 2338 | klass->SetStatus(Class::kStatusInitialized); |
| 2339 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2340 | |
| 2341 | // sanity checks |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 2342 | if (kIsDebugBuild) { |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2343 | CHECK(klass->GetIFields() == NULL); |
| 2344 | CheckProxyConstructor(klass->GetDirectMethod(0)); |
| 2345 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2346 | SirtRef<AbstractMethod> prototype(methods->Get(i)); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2347 | CheckProxyMethod(klass->GetVirtualMethod(i), prototype); |
| 2348 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2349 | |
| 2350 | std::string interfaces_field_name(StringPrintf("java.lang.Class[] %s.interfaces", |
| 2351 | name->ToModifiedUtf8().c_str())); |
| 2352 | CHECK_EQ(PrettyField(klass->GetStaticField(0)), interfaces_field_name); |
| 2353 | |
| 2354 | std::string throws_field_name(StringPrintf("java.lang.Class[][] %s.throws", |
| 2355 | name->ToModifiedUtf8().c_str())); |
| 2356 | CHECK_EQ(PrettyField(klass->GetStaticField(1)), throws_field_name); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2357 | |
| 2358 | SynthesizedProxyClass* synth_proxy_class = down_cast<SynthesizedProxyClass*>(klass.get()); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2359 | CHECK_EQ(synth_proxy_class->GetInterfaces(), interfaces); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2360 | CHECK_EQ(synth_proxy_class->GetThrows(), throws); |
| 2361 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2362 | return klass.get(); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2363 | } |
| 2364 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2365 | std::string ClassLinker::GetDescriptorForProxy(const Class* proxy_class) { |
| 2366 | DCHECK(proxy_class->IsProxyClass()); |
| 2367 | String* name = proxy_class->GetName(); |
| 2368 | DCHECK(name != NULL); |
| 2369 | return DotToDescriptor(name->ToModifiedUtf8().c_str()); |
| 2370 | } |
| 2371 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2372 | AbstractMethod* ClassLinker::FindMethodForProxy(const Class* proxy_class, const AbstractMethod* proxy_method) { |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2373 | DCHECK(proxy_class->IsProxyClass()); |
| 2374 | DCHECK(proxy_method->IsProxyMethod()); |
| 2375 | // Locate the dex cache of the original interface/Object |
| 2376 | DexCache* dex_cache = NULL; |
| 2377 | { |
| 2378 | ObjectArray<Class>* resolved_types = proxy_method->GetDexCacheResolvedTypes(); |
| 2379 | MutexLock mu(dex_lock_); |
| 2380 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 2381 | if (dex_caches_[i]->GetResolvedTypes() == resolved_types) { |
| 2382 | dex_cache = dex_caches_[i]; |
| 2383 | break; |
| 2384 | } |
| 2385 | } |
| 2386 | } |
| 2387 | CHECK(dex_cache != NULL); |
| 2388 | uint32_t method_idx = proxy_method->GetDexMethodIndex(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2389 | AbstractMethod* resolved_method = dex_cache->GetResolvedMethod(method_idx); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2390 | CHECK(resolved_method != NULL); |
| 2391 | return resolved_method; |
| 2392 | } |
| 2393 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2394 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2395 | AbstractMethod* ClassLinker::CreateProxyConstructor(SirtRef<Class>& klass, Class* proxy_class) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2396 | // Create constructor for Proxy that must initialize h |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2397 | ObjectArray<AbstractMethod>* proxy_direct_methods = proxy_class->GetDirectMethods(); |
Jesse Wilson | ecbce8f | 2011-10-21 19:57:36 -0400 | [diff] [blame] | 2398 | CHECK_EQ(proxy_direct_methods->GetLength(), 15); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2399 | AbstractMethod* proxy_constructor = proxy_direct_methods->Get(2); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2400 | // Clone the existing constructor of Proxy (our constructor would just invoke it so steal its |
| 2401 | // code_ too) |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2402 | AbstractMethod* constructor = down_cast<AbstractMethod*>(proxy_constructor->Clone()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2403 | // Make this constructor public and fix the class to be our Proxy version |
| 2404 | constructor->SetAccessFlags((constructor->GetAccessFlags() & ~kAccProtected) | kAccPublic); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2405 | constructor->SetDeclaringClass(klass.get()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2406 | return constructor; |
| 2407 | } |
| 2408 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2409 | static void CheckProxyConstructor(AbstractMethod* constructor) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2410 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2411 | CHECK(constructor->IsConstructor()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2412 | MethodHelper mh(constructor); |
| 2413 | CHECK_STREQ(mh.GetName(), "<init>"); |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 2414 | CHECK_EQ(mh.GetSignature(), std::string("(Ljava/lang/reflect/InvocationHandler;)V")); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2415 | DCHECK(constructor->IsPublic()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2416 | } |
| 2417 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2418 | AbstractMethod* ClassLinker::CreateProxyMethod(SirtRef<Class>& klass, SirtRef<AbstractMethod>& prototype) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2419 | // Ensure prototype is in dex cache so that we can use the dex cache to look up the overridden |
| 2420 | // prototype method |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2421 | prototype->GetDeclaringClass()->GetDexCache()->SetResolvedMethod(prototype->GetDexMethodIndex(), |
| 2422 | prototype.get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2423 | // We steal everything from the prototype (such as DexCache, invoke stub, etc.) then specialize |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2424 | // as necessary |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2425 | AbstractMethod* method = down_cast<AbstractMethod*>(prototype->Clone()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2426 | |
| 2427 | // Set class to be the concrete proxy class and clear the abstract flag, modify exceptions to |
| 2428 | // the intersection of throw exceptions as defined in Proxy |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2429 | method->SetDeclaringClass(klass.get()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2430 | method->SetAccessFlags((method->GetAccessFlags() & ~kAccAbstract) | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2431 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2432 | // At runtime the method looks like a reference and argument saving method, clone the code |
| 2433 | // related parameters from this method. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2434 | AbstractMethod* refs_and_args = Runtime::Current()->GetCalleeSaveMethod(Runtime::kRefsAndArgs); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2435 | method->SetCoreSpillMask(refs_and_args->GetCoreSpillMask()); |
| 2436 | method->SetFpSpillMask(refs_and_args->GetFpSpillMask()); |
| 2437 | method->SetFrameSizeInBytes(refs_and_args->GetFrameSizeInBytes()); |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 2438 | #if !defined(ART_USE_LLVM_COMPILER) |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2439 | method->SetCode(reinterpret_cast<void*>(art_proxy_invoke_handler)); |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 2440 | #else |
Logan Chien | 7a2a23a | 2012-06-06 11:01:00 +0800 | [diff] [blame] | 2441 | OatFile::OatMethod oat_method = GetOatMethodFor(prototype.get()); |
| 2442 | method->SetCode(oat_method.GetProxyStub()); |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 2443 | #endif |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2444 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2445 | return method; |
| 2446 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2447 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2448 | static void CheckProxyMethod(AbstractMethod* method, SirtRef<AbstractMethod>& prototype) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2449 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2450 | // Basic sanity |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2451 | CHECK(!prototype->IsFinal()); |
| 2452 | CHECK(method->IsFinal()); |
| 2453 | CHECK(!method->IsAbstract()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2454 | |
| 2455 | // The proxy method doesn't have its own dex cache or dex file and so it steals those of its |
| 2456 | // interface prototype. The exception to this are Constructors and the Class of the Proxy itself. |
| 2457 | CHECK_EQ(prototype->GetDexCacheStrings(), method->GetDexCacheStrings()); |
| 2458 | CHECK_EQ(prototype->GetDexCacheResolvedMethods(), method->GetDexCacheResolvedMethods()); |
| 2459 | CHECK_EQ(prototype->GetDexCacheResolvedTypes(), method->GetDexCacheResolvedTypes()); |
| 2460 | CHECK_EQ(prototype->GetDexCacheInitializedStaticStorage(), |
| 2461 | method->GetDexCacheInitializedStaticStorage()); |
| 2462 | CHECK_EQ(prototype->GetDexMethodIndex(), method->GetDexMethodIndex()); |
| 2463 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2464 | MethodHelper mh(method); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2465 | MethodHelper mh2(prototype.get()); |
| 2466 | CHECK_STREQ(mh.GetName(), mh2.GetName()); |
| 2467 | CHECK_STREQ(mh.GetShorty(), mh2.GetShorty()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2468 | // More complex sanity - via dex cache |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2469 | CHECK_EQ(mh.GetReturnType(), mh2.GetReturnType()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2470 | } |
| 2471 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2472 | bool ClassLinker::InitializeClass(Class* klass, bool can_run_clinit, bool can_init_statics) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2473 | CHECK(klass->IsResolved() || klass->IsErroneous()) |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2474 | << PrettyClass(klass) << ": state=" << klass->GetStatus(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2475 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 2476 | Thread* self = Thread::Current(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2477 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2478 | AbstractMethod* clinit = NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2479 | { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2480 | // see JLS 3rd edition, 12.4.2 "Detailed Initialization Procedure" for the locking protocol |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2481 | ObjectLock lock(klass); |
| 2482 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2483 | if (klass->GetStatus() == Class::kStatusInitialized) { |
| 2484 | return true; |
| 2485 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2486 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2487 | if (klass->IsErroneous()) { |
| 2488 | ThrowEarlierClassFailure(klass); |
| 2489 | return false; |
| 2490 | } |
| 2491 | |
jeffhao | ebe2e0f | 2012-06-06 15:19:40 -0700 | [diff] [blame] | 2492 | if (klass->GetStatus() == Class::kStatusResolved || |
| 2493 | klass->GetStatus() == Class::kStatusRetryVerificationAtRuntime) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2494 | VerifyClass(klass); |
| 2495 | if (klass->GetStatus() != Class::kStatusVerified) { |
jeffhao | a9b3bf4 | 2012-06-06 17:18:39 -0700 | [diff] [blame] | 2496 | if (klass->GetStatus() == Class::kStatusError) { |
| 2497 | CHECK(self->IsExceptionPending()); |
| 2498 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2499 | return false; |
| 2500 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2501 | } |
| 2502 | |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2503 | clinit = klass->FindDeclaredDirectMethod("<clinit>", "()V"); |
| 2504 | if (clinit != NULL && !can_run_clinit) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2505 | // if the class has a <clinit> but we can't run it during compilation, |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 2506 | // don't bother going to kStatusInitializing. We return false so that |
| 2507 | // sub-classes don't believe this class is initialized. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2508 | // Opportunistically link non-static methods, TODO: don't initialize and dirty pages |
| 2509 | // in second pass. |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 2510 | return false; |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2511 | } |
| 2512 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2513 | // If the class is kStatusInitializing, either this thread is |
| 2514 | // initializing higher up the stack or another thread has beat us |
| 2515 | // to initializing and we need to wait. Either way, this |
| 2516 | // invocation of InitializeClass will not be responsible for |
| 2517 | // running <clinit> and will return. |
| 2518 | if (klass->GetStatus() == Class::kStatusInitializing) { |
Elliott Hughes | 005ab2e | 2011-09-11 17:15:31 -0700 | [diff] [blame] | 2519 | // We caught somebody else in the act; was it us? |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 2520 | if (klass->GetClinitThreadId() == self->GetTid()) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2521 | // Yes. That's fine. Return so we can continue initializing. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2522 | return true; |
| 2523 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2524 | // No. That's fine. Wait for another thread to finish initializing. |
| 2525 | return WaitForInitializeClass(klass, self, lock); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2526 | } |
| 2527 | |
| 2528 | if (!ValidateSuperClassDescriptors(klass)) { |
| 2529 | klass->SetStatus(Class::kStatusError); |
| 2530 | return false; |
| 2531 | } |
| 2532 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2533 | DCHECK_EQ(klass->GetStatus(), Class::kStatusVerified) << PrettyClass(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2534 | |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 2535 | klass->SetClinitThreadId(self->GetTid()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2536 | klass->SetStatus(Class::kStatusInitializing); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2537 | } |
| 2538 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2539 | uint64_t t0 = NanoTime(); |
| 2540 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2541 | if (!InitializeSuperClass(klass, can_run_clinit, can_init_statics)) { |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 2542 | // Super class initialization failed, this can be because we can't run |
| 2543 | // super-class class initializers in which case we'll be verified. |
| 2544 | // Otherwise this class is erroneous. |
| 2545 | if (!can_run_clinit) { |
| 2546 | CHECK(klass->IsVerified()); |
| 2547 | } else { |
| 2548 | CHECK(klass->IsErroneous()); |
| 2549 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2550 | return false; |
| 2551 | } |
| 2552 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2553 | bool has_static_field_initializers = InitializeStaticFields(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2554 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2555 | if (clinit != NULL) { |
Elliott Hughes | f5ecf06 | 2011-09-06 17:37:59 -0700 | [diff] [blame] | 2556 | clinit->Invoke(self, NULL, NULL, NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2557 | } |
| 2558 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2559 | FixupStaticTrampolines(klass); |
| 2560 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2561 | uint64_t t1 = NanoTime(); |
| 2562 | |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2563 | bool success = true; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2564 | { |
| 2565 | ObjectLock lock(klass); |
| 2566 | |
| 2567 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 2568 | WrapExceptionInInitializer(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2569 | klass->SetStatus(Class::kStatusError); |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2570 | success = false; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2571 | } else { |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2572 | RuntimeStats* global_stats = Runtime::Current()->GetStats(); |
| 2573 | RuntimeStats* thread_stats = self->GetStats(); |
| 2574 | ++global_stats->class_init_count; |
| 2575 | ++thread_stats->class_init_count; |
| 2576 | global_stats->class_init_time_ns += (t1 - t0); |
| 2577 | thread_stats->class_init_time_ns += (t1 - t0); |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2578 | // Set the class as initialized except if we can't initialize static fields and static field |
| 2579 | // initialization is necessary. |
| 2580 | if (!can_init_statics && has_static_field_initializers) { |
| 2581 | klass->SetStatus(Class::kStatusVerified); // Don't leave class in initializing state. |
| 2582 | success = false; |
| 2583 | } else { |
| 2584 | klass->SetStatus(Class::kStatusInitialized); |
| 2585 | } |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 2586 | if (VLOG_IS_ON(class_linker)) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2587 | ClassHelper kh(klass); |
| 2588 | LOG(INFO) << "Initialized class " << kh.GetDescriptor() << " from " << kh.GetLocation(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2589 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2590 | } |
| 2591 | lock.NotifyAll(); |
| 2592 | } |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2593 | return success; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2594 | } |
| 2595 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2596 | bool ClassLinker::WaitForInitializeClass(Class* klass, Thread* self, ObjectLock& lock) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2597 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2598 | while (true) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2599 | self->AssertNoPendingException(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2600 | lock.Wait(); |
| 2601 | |
| 2602 | // When we wake up, repeat the test for init-in-progress. If |
| 2603 | // there's an exception pending (only possible if |
| 2604 | // "interruptShouldThrow" was set), bail out. |
| 2605 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 2606 | WrapExceptionInInitializer(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2607 | klass->SetStatus(Class::kStatusError); |
| 2608 | return false; |
| 2609 | } |
| 2610 | // Spurious wakeup? Go back to waiting. |
| 2611 | if (klass->GetStatus() == Class::kStatusInitializing) { |
| 2612 | continue; |
| 2613 | } |
| 2614 | if (klass->IsErroneous()) { |
| 2615 | // The caller wants an exception, but it was thrown in a |
| 2616 | // different thread. Synthesize one here. |
Brian Carlstrom | df14324 | 2011-10-10 18:05:34 -0700 | [diff] [blame] | 2617 | ThrowNoClassDefFoundError("<clinit> failed for class %s; see exception in other thread", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2618 | PrettyDescriptor(klass).c_str()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2619 | return false; |
| 2620 | } |
| 2621 | if (klass->IsInitialized()) { |
| 2622 | return true; |
| 2623 | } |
| 2624 | LOG(FATAL) << "Unexpected class status. " << PrettyClass(klass) << " is " << klass->GetStatus(); |
| 2625 | } |
| 2626 | LOG(FATAL) << "Not Reached" << PrettyClass(klass); |
| 2627 | } |
| 2628 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2629 | bool ClassLinker::ValidateSuperClassDescriptors(const Class* klass) { |
| 2630 | if (klass->IsInterface()) { |
| 2631 | return true; |
| 2632 | } |
| 2633 | // begin with the methods local to the superclass |
| 2634 | if (klass->HasSuperClass() && |
| 2635 | klass->GetClassLoader() != klass->GetSuperClass()->GetClassLoader()) { |
| 2636 | const Class* super = klass->GetSuperClass(); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2637 | for (int i = super->GetVTable()->GetLength() - 1; i >= 0; --i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2638 | const AbstractMethod* method = klass->GetVTable()->Get(i); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2639 | if (method != super->GetVTable()->Get(i) && |
| 2640 | !IsSameMethodSignatureInDifferentClassContexts(method, super, klass)) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2641 | ThrowLinkageError("Class %s method %s resolves differently in superclass %s", |
| 2642 | PrettyDescriptor(klass).c_str(), PrettyMethod(method).c_str(), |
| 2643 | PrettyDescriptor(super).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2644 | return false; |
| 2645 | } |
| 2646 | } |
| 2647 | } |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2648 | for (int32_t i = 0; i < klass->GetIfTableCount(); ++i) { |
| 2649 | InterfaceEntry* interface_entry = klass->GetIfTable()->Get(i); |
| 2650 | Class* interface = interface_entry->GetInterface(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2651 | if (klass->GetClassLoader() != interface->GetClassLoader()) { |
| 2652 | for (size_t j = 0; j < interface->NumVirtualMethods(); ++j) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2653 | const AbstractMethod* method = interface_entry->GetMethodArray()->Get(j); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2654 | if (!IsSameMethodSignatureInDifferentClassContexts(method, interface, |
| 2655 | method->GetDeclaringClass())) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2656 | ThrowLinkageError("Class %s method %s resolves differently in interface %s", |
| 2657 | PrettyDescriptor(method->GetDeclaringClass()).c_str(), |
| 2658 | PrettyMethod(method).c_str(), |
| 2659 | PrettyDescriptor(interface).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2660 | return false; |
| 2661 | } |
| 2662 | } |
| 2663 | } |
| 2664 | } |
| 2665 | return true; |
| 2666 | } |
| 2667 | |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2668 | // Returns true if classes referenced by the signature of the method are the |
| 2669 | // same classes in klass1 as they are in klass2. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2670 | bool ClassLinker::IsSameMethodSignatureInDifferentClassContexts(const AbstractMethod* method, |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2671 | const Class* klass1, |
| 2672 | const Class* klass2) { |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 2673 | if (klass1 == klass2) { |
| 2674 | return true; |
Brian Carlstrom | e10b697 | 2011-09-26 13:49:03 -0700 | [diff] [blame] | 2675 | } |
Brian Carlstrom | 27ec961 | 2011-09-19 20:20:38 -0700 | [diff] [blame] | 2676 | const DexFile& dex_file = FindDexFile(method->GetDeclaringClass()->GetDexCache()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2677 | const DexFile::ProtoId& proto_id = |
| 2678 | dex_file.GetMethodPrototype(dex_file.GetMethodId(method->GetDexMethodIndex())); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2679 | for (DexFileParameterIterator it(dex_file, proto_id); it.HasNext(); it.Next()) { |
| 2680 | const char* descriptor = it.GetDescriptor(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2681 | if (descriptor == NULL) { |
| 2682 | break; |
| 2683 | } |
| 2684 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
| 2685 | // Found a non-primitive type. |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2686 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, klass1, klass2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2687 | return false; |
| 2688 | } |
| 2689 | } |
| 2690 | } |
| 2691 | // Check the return type |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2692 | const char* descriptor = dex_file.GetReturnTypeDescriptor(proto_id); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2693 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2694 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, klass1, klass2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2695 | return false; |
| 2696 | } |
| 2697 | } |
| 2698 | return true; |
| 2699 | } |
| 2700 | |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2701 | // Returns true if the descriptor resolves to the same class in the context of klass1 and klass2. |
| 2702 | bool ClassLinker::IsSameDescriptorInDifferentClassContexts(const char* descriptor, |
| 2703 | const Class* klass1, |
| 2704 | const Class* klass2) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2705 | CHECK(descriptor != NULL); |
| 2706 | CHECK(klass1 != NULL); |
| 2707 | CHECK(klass2 != NULL); |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 2708 | if (klass1 == klass2) { |
| 2709 | return true; |
| 2710 | } |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2711 | Class* found1 = FindClass(descriptor, klass1->GetClassLoader()); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2712 | if (found1 == NULL) { |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 2713 | Thread::Current()->ClearException(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2714 | } |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2715 | Class* found2 = FindClass(descriptor, klass2->GetClassLoader()); |
| 2716 | if (found2 == NULL) { |
| 2717 | Thread::Current()->ClearException(); |
| 2718 | } |
| 2719 | return found1 == found2; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2720 | } |
| 2721 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2722 | bool ClassLinker::InitializeSuperClass(Class* klass, bool can_run_clinit, bool can_init_fields) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2723 | CHECK(klass != NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2724 | if (!klass->IsInterface() && klass->HasSuperClass()) { |
| 2725 | Class* super_class = klass->GetSuperClass(); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2726 | if (!super_class->IsInitialized()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2727 | CHECK(!super_class->IsInterface()); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2728 | ObjectLock lock(klass); // Must hold lock on object when initializing and setting status. |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2729 | bool super_initialized = InitializeClass(super_class, can_run_clinit, can_init_fields); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2730 | // TODO: check for a pending exception |
| 2731 | if (!super_initialized) { |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2732 | if (!can_run_clinit) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 2733 | // Don't set status to error when we can't run <clinit>. |
| 2734 | CHECK_EQ(klass->GetStatus(), Class::kStatusInitializing) << PrettyClass(klass); |
| 2735 | klass->SetStatus(Class::kStatusVerified); |
| 2736 | return false; |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2737 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2738 | klass->SetStatus(Class::kStatusError); |
| 2739 | klass->NotifyAll(); |
| 2740 | return false; |
| 2741 | } |
| 2742 | } |
| 2743 | } |
| 2744 | return true; |
| 2745 | } |
| 2746 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2747 | bool ClassLinker::EnsureInitialized(Class* c, bool can_run_clinit, bool can_init_fields) { |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 2748 | CHECK(c != NULL); |
| 2749 | if (c->IsInitialized()) { |
| 2750 | return true; |
| 2751 | } |
| 2752 | |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 2753 | Thread* self = Thread::Current(); |
Elliott Hughes | 34e0696 | 2012-04-09 13:55:55 -0700 | [diff] [blame] | 2754 | ScopedThreadStateChange tsc(self, kRunnable); |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2755 | bool success = InitializeClass(c, can_run_clinit, can_init_fields); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2756 | if (!success) { |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 2757 | CHECK(self->IsExceptionPending() || !can_run_clinit) << PrettyClass(c); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2758 | } |
| 2759 | return success; |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 2760 | } |
| 2761 | |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2762 | void ClassLinker::ConstructFieldMap(const DexFile& dex_file, const DexFile::ClassDef& dex_class_def, |
Elliott Hughes | a0e1806 | 2012-04-13 15:59:59 -0700 | [diff] [blame] | 2763 | Class* c, SafeMap<uint32_t, Field*>& field_map) { |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 2764 | ClassLoader* cl = c->GetClassLoader(); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2765 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2766 | ClassDataItemIterator it(dex_file, class_data); |
| 2767 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Elliott Hughes | a0e1806 | 2012-04-13 15:59:59 -0700 | [diff] [blame] | 2768 | field_map.Put(i, ResolveField(dex_file, it.GetMemberIndex(), c->GetDexCache(), cl, true)); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2769 | } |
| 2770 | } |
| 2771 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2772 | bool ClassLinker::InitializeStaticFields(Class* klass) { |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2773 | size_t num_static_fields = klass->NumStaticFields(); |
| 2774 | if (num_static_fields == 0) { |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2775 | return false; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2776 | } |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2777 | DexCache* dex_cache = klass->GetDexCache(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2778 | // TODO: this seems like the wrong check. do we really want !IsPrimitive && !IsArray? |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2779 | if (dex_cache == NULL) { |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2780 | return false; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2781 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2782 | ClassHelper kh(klass); |
| 2783 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2784 | CHECK(dex_class_def != NULL); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2785 | const DexFile& dex_file = kh.GetDexFile(); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2786 | EncodedStaticFieldValueIterator it(dex_file, dex_cache, this, *dex_class_def); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2787 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2788 | if (it.HasNext()) { |
| 2789 | // We reordered the fields, so we need to be able to map the field indexes to the right fields. |
Elliott Hughes | a0e1806 | 2012-04-13 15:59:59 -0700 | [diff] [blame] | 2790 | SafeMap<uint32_t, Field*> field_map; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2791 | ConstructFieldMap(dex_file, *dex_class_def, klass, field_map); |
| 2792 | for (size_t i = 0; it.HasNext(); i++, it.Next()) { |
Elliott Hughes | a0e1806 | 2012-04-13 15:59:59 -0700 | [diff] [blame] | 2793 | it.ReadValueToField(field_map.Get(i)); |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2794 | } |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2795 | return true; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2796 | } |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2797 | return false; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2798 | } |
| 2799 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2800 | bool ClassLinker::LinkClass(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2801 | CHECK_EQ(Class::kStatusLoaded, klass->GetStatus()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2802 | if (!LinkSuperClass(klass)) { |
| 2803 | return false; |
| 2804 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2805 | if (!LinkMethods(klass, interfaces)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2806 | return false; |
| 2807 | } |
| 2808 | if (!LinkInstanceFields(klass)) { |
| 2809 | return false; |
| 2810 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2811 | if (!LinkStaticFields(klass)) { |
| 2812 | return false; |
| 2813 | } |
| 2814 | CreateReferenceInstanceOffsets(klass); |
| 2815 | CreateReferenceStaticOffsets(klass); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2816 | CHECK_EQ(Class::kStatusLoaded, klass->GetStatus()); |
| 2817 | klass->SetStatus(Class::kStatusResolved); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2818 | return true; |
| 2819 | } |
| 2820 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2821 | bool ClassLinker::LoadSuperAndInterfaces(SirtRef<Class>& klass, const DexFile& dex_file) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2822 | CHECK_EQ(Class::kStatusIdx, klass->GetStatus()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2823 | StringPiece descriptor(dex_file.StringByTypeIdx(klass->GetDexTypeIndex())); |
| 2824 | const DexFile::ClassDef* class_def = dex_file.FindClassDef(descriptor); |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 2825 | CHECK(class_def != NULL); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2826 | uint16_t super_class_idx = class_def->superclass_idx_; |
| 2827 | if (super_class_idx != DexFile::kDexNoIndex16) { |
| 2828 | Class* super_class = ResolveType(dex_file, super_class_idx, klass.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2829 | if (super_class == NULL) { |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 2830 | DCHECK(Thread::Current()->IsExceptionPending()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2831 | return false; |
| 2832 | } |
Ian Rogers | be125a9 | 2012-01-11 15:19:49 -0800 | [diff] [blame] | 2833 | // Verify |
| 2834 | if (!klass->CanAccess(super_class)) { |
| 2835 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
| 2836 | "Class %s extended by class %s is inaccessible", |
| 2837 | PrettyDescriptor(super_class).c_str(), |
| 2838 | PrettyDescriptor(klass.get()).c_str()); |
| 2839 | return false; |
| 2840 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2841 | klass->SetSuperClass(super_class); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2842 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2843 | const DexFile::TypeList* interfaces = dex_file.GetInterfacesList(*class_def); |
| 2844 | if (interfaces != NULL) { |
| 2845 | for (size_t i = 0; i < interfaces->Size(); i++) { |
| 2846 | uint16_t idx = interfaces->GetTypeItem(i).type_idx_; |
| 2847 | Class* interface = ResolveType(dex_file, idx, klass.get()); |
| 2848 | if (interface == NULL) { |
| 2849 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 2850 | return false; |
| 2851 | } |
| 2852 | // Verify |
| 2853 | if (!klass->CanAccess(interface)) { |
| 2854 | // TODO: the RI seemed to ignore this in my testing. |
| 2855 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
| 2856 | "Interface %s implemented by class %s is inaccessible", |
| 2857 | PrettyDescriptor(interface).c_str(), |
| 2858 | PrettyDescriptor(klass.get()).c_str()); |
| 2859 | return false; |
| 2860 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2861 | } |
| 2862 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2863 | // Mark the class as loaded. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2864 | klass->SetStatus(Class::kStatusLoaded); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2865 | return true; |
| 2866 | } |
| 2867 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2868 | bool ClassLinker::LinkSuperClass(SirtRef<Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2869 | CHECK(!klass->IsPrimitive()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2870 | Class* super = klass->GetSuperClass(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2871 | if (klass.get() == GetClassRoot(kJavaLangObject)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2872 | if (super != NULL) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 2873 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/ClassFormatError;", |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2874 | "java.lang.Object must not have a superclass"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2875 | return false; |
| 2876 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2877 | return true; |
| 2878 | } |
| 2879 | if (super == NULL) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2880 | ThrowLinkageError("No superclass defined for class %s", PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2881 | return false; |
| 2882 | } |
| 2883 | // Verify |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2884 | if (super->IsFinal() || super->IsInterface()) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 2885 | Thread* self = Thread::Current(); |
| 2886 | self->ThrowNewExceptionF("Ljava/lang/IncompatibleClassChangeError;", |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 2887 | "Superclass %s of %s is %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2888 | PrettyDescriptor(super).c_str(), |
| 2889 | PrettyDescriptor(klass.get()).c_str(), |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2890 | super->IsFinal() ? "declared final" : "an interface"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2891 | return false; |
| 2892 | } |
| 2893 | if (!klass->CanAccess(super)) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 2894 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 2895 | "Superclass %s is inaccessible by %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2896 | PrettyDescriptor(super).c_str(), |
| 2897 | PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2898 | return false; |
| 2899 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 2900 | |
| 2901 | // Inherit kAccClassIsFinalizable from the superclass in case this class doesn't override finalize. |
| 2902 | if (super->IsFinalizable()) { |
| 2903 | klass->SetFinalizable(); |
| 2904 | } |
| 2905 | |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 2906 | // Inherit reference flags (if any) from the superclass. |
| 2907 | int reference_flags = (super->GetAccessFlags() & kAccReferenceFlagsMask); |
| 2908 | if (reference_flags != 0) { |
| 2909 | klass->SetAccessFlags(klass->GetAccessFlags() | reference_flags); |
| 2910 | } |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 2911 | // Disallow custom direct subclasses of java.lang.ref.Reference. |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 2912 | if (init_done_ && super == GetClassRoot(kJavaLangRefReference)) { |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 2913 | ThrowLinkageError("Class %s attempts to subclass java.lang.ref.Reference, which is not allowed", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2914 | PrettyDescriptor(klass.get()).c_str()); |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 2915 | return false; |
| 2916 | } |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 2917 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2918 | #ifndef NDEBUG |
| 2919 | // Ensure super classes are fully resolved prior to resolving fields.. |
| 2920 | while (super != NULL) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2921 | CHECK(super->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2922 | super = super->GetSuperClass(); |
| 2923 | } |
| 2924 | #endif |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2925 | return true; |
| 2926 | } |
| 2927 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2928 | // Populate the class vtable and itable. Compute return type indices. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2929 | bool ClassLinker::LinkMethods(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2930 | if (klass->IsInterface()) { |
| 2931 | // No vtable. |
| 2932 | size_t count = klass->NumVirtualMethods(); |
| 2933 | if (!IsUint(16, count)) { |
Elliott Hughes | 92cb498 | 2011-12-16 16:57:28 -0800 | [diff] [blame] | 2934 | ThrowClassFormatError("Too many methods on interface: %zd", count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2935 | return false; |
| 2936 | } |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 2937 | for (size_t i = 0; i < count; ++i) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2938 | klass->GetVirtualMethodDuringLinking(i)->SetMethodIndex(i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2939 | } |
jeffhao | bdb7651 | 2011-09-07 11:43:16 -0700 | [diff] [blame] | 2940 | // Link interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2941 | return LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2942 | } else { |
Elliott Hughes | bc258fa | 2011-10-06 14:45:21 -0700 | [diff] [blame] | 2943 | // Link virtual and interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2944 | return LinkVirtualMethods(klass) && LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2945 | } |
| 2946 | return true; |
| 2947 | } |
| 2948 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2949 | bool ClassLinker::LinkVirtualMethods(SirtRef<Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2950 | if (klass->HasSuperClass()) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2951 | uint32_t max_count = klass->NumVirtualMethods() + klass->GetSuperClass()->GetVTable()->GetLength(); |
| 2952 | size_t actual_count = klass->GetSuperClass()->GetVTable()->GetLength(); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 2953 | CHECK_LE(actual_count, max_count); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 2954 | // TODO: do not assign to the vtable field until it is fully constructed. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2955 | SirtRef<ObjectArray<AbstractMethod> > vtable(klass->GetSuperClass()->GetVTable()->CopyOf(max_count)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2956 | // See if any of our virtual methods override the superclass. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2957 | MethodHelper local_mh(NULL, this); |
| 2958 | MethodHelper super_mh(NULL, this); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2959 | for (size_t i = 0; i < klass->NumVirtualMethods(); ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2960 | AbstractMethod* local_method = klass->GetVirtualMethodDuringLinking(i); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2961 | local_mh.ChangeMethod(local_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2962 | size_t j = 0; |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 2963 | for (; j < actual_count; ++j) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 2964 | AbstractMethod* super_method = vtable->Get(j); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2965 | super_mh.ChangeMethod(super_method); |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 2966 | if (local_mh.HasSameNameAndSignature(&super_mh)) { |
| 2967 | if (klass->CanAccessMember(super_method->GetDeclaringClass(), super_method->GetAccessFlags())) { |
| 2968 | if (super_method->IsFinal()) { |
| 2969 | ThrowLinkageError("Method %s overrides final method in class %s", |
| 2970 | PrettyMethod(local_method).c_str(), |
| 2971 | super_mh.GetDeclaringClassDescriptor()); |
| 2972 | return false; |
| 2973 | } |
| 2974 | vtable->Set(j, local_method); |
| 2975 | local_method->SetMethodIndex(j); |
| 2976 | break; |
| 2977 | } else { |
| 2978 | LOG(WARNING) << "Before Android 4.1, method " << PrettyMethod(local_method) |
| 2979 | << " would have incorrectly overridden the package-private method in " |
| 2980 | << PrettyDescriptor(super_mh.GetDeclaringClassDescriptor()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2981 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2982 | } |
| 2983 | } |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 2984 | if (j == actual_count) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2985 | // Not overriding, append. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2986 | vtable->Set(actual_count, local_method); |
| 2987 | local_method->SetMethodIndex(actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2988 | actual_count += 1; |
| 2989 | } |
| 2990 | } |
| 2991 | if (!IsUint(16, actual_count)) { |
Elliott Hughes | 92cb498 | 2011-12-16 16:57:28 -0800 | [diff] [blame] | 2992 | ThrowClassFormatError("Too many methods defined on class: %zd", actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2993 | return false; |
| 2994 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2995 | // Shrink vtable if possible |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2996 | CHECK_LE(actual_count, max_count); |
| 2997 | if (actual_count < max_count) { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 2998 | vtable.reset(vtable->CopyOf(actual_count)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2999 | } |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3000 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3001 | } else { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3002 | CHECK(klass.get() == GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3003 | uint32_t num_virtual_methods = klass->NumVirtualMethods(); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3004 | if (!IsUint(16, num_virtual_methods)) { |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 3005 | ThrowClassFormatError("Too many methods: %d", num_virtual_methods); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3006 | return false; |
| 3007 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3008 | SirtRef<ObjectArray<AbstractMethod> > vtable(AllocObjectArray<AbstractMethod>(num_virtual_methods)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3009 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3010 | AbstractMethod* virtual_method = klass->GetVirtualMethodDuringLinking(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3011 | vtable->Set(i, virtual_method); |
| 3012 | virtual_method->SetMethodIndex(i & 0xFFFF); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3013 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3014 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3015 | } |
| 3016 | return true; |
| 3017 | } |
| 3018 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3019 | bool ClassLinker::LinkInterfaceMethods(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3020 | size_t super_ifcount; |
| 3021 | if (klass->HasSuperClass()) { |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3022 | super_ifcount = klass->GetSuperClass()->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3023 | } else { |
| 3024 | super_ifcount = 0; |
| 3025 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3026 | size_t ifcount = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3027 | ClassHelper kh(klass.get(), this); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 3028 | uint32_t num_interfaces = interfaces == NULL ? kh.NumDirectInterfaces() : interfaces->GetLength(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3029 | ifcount += num_interfaces; |
| 3030 | for (size_t i = 0; i < num_interfaces; i++) { |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 3031 | Class* interface = interfaces == NULL ? kh.GetDirectInterface(i) : interfaces->Get(i); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3032 | ifcount += interface->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3033 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3034 | if (ifcount == 0) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3035 | // TODO: enable these asserts with klass status validation |
Elliott Hughes | f5a7a47 | 2011-10-07 14:31:02 -0700 | [diff] [blame] | 3036 | // DCHECK_EQ(klass->GetIfTableCount(), 0); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3037 | // DCHECK(klass->GetIfTable() == NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3038 | return true; |
| 3039 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3040 | SirtRef<ObjectArray<InterfaceEntry> > iftable(AllocObjectArray<InterfaceEntry>(ifcount)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3041 | if (super_ifcount != 0) { |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3042 | ObjectArray<InterfaceEntry>* super_iftable = klass->GetSuperClass()->GetIfTable(); |
| 3043 | for (size_t i = 0; i < super_ifcount; i++) { |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3044 | Class* super_interface = super_iftable->Get(i)->GetInterface(); |
| 3045 | iftable->Set(i, AllocInterfaceEntry(super_interface)); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3046 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3047 | } |
| 3048 | // Flatten the interface inheritance hierarchy. |
| 3049 | size_t idx = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3050 | for (size_t i = 0; i < num_interfaces; i++) { |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 3051 | Class* interface = interfaces == NULL ? kh.GetDirectInterface(i) : interfaces->Get(i); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3052 | DCHECK(interface != NULL); |
| 3053 | if (!interface->IsInterface()) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3054 | ClassHelper ih(interface); |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 3055 | Thread* self = Thread::Current(); |
| 3056 | self->ThrowNewExceptionF("Ljava/lang/IncompatibleClassChangeError;", |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 3057 | "Class %s implements non-interface class %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3058 | PrettyDescriptor(klass.get()).c_str(), |
| 3059 | PrettyDescriptor(ih.GetDescriptor()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3060 | return false; |
| 3061 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3062 | // Check if interface is already in iftable |
| 3063 | bool duplicate = false; |
| 3064 | for (size_t j = 0; j < idx; j++) { |
| 3065 | Class* existing_interface = iftable->Get(j)->GetInterface(); |
| 3066 | if (existing_interface == interface) { |
| 3067 | duplicate = true; |
| 3068 | break; |
| 3069 | } |
| 3070 | } |
| 3071 | if (!duplicate) { |
| 3072 | // Add this non-duplicate interface. |
| 3073 | iftable->Set(idx++, AllocInterfaceEntry(interface)); |
| 3074 | // Add this interface's non-duplicate super-interfaces. |
| 3075 | for (int32_t j = 0; j < interface->GetIfTableCount(); j++) { |
| 3076 | Class* super_interface = interface->GetIfTable()->Get(j)->GetInterface(); |
| 3077 | bool super_duplicate = false; |
| 3078 | for (size_t k = 0; k < idx; k++) { |
| 3079 | Class* existing_interface = iftable->Get(k)->GetInterface(); |
| 3080 | if (existing_interface == super_interface) { |
| 3081 | super_duplicate = true; |
| 3082 | break; |
| 3083 | } |
| 3084 | } |
| 3085 | if (!super_duplicate) { |
| 3086 | iftable->Set(idx++, AllocInterfaceEntry(super_interface)); |
| 3087 | } |
| 3088 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3089 | } |
| 3090 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3091 | // Shrink iftable in case duplicates were found |
| 3092 | if (idx < ifcount) { |
| 3093 | iftable.reset(iftable->CopyOf(idx)); |
| 3094 | ifcount = idx; |
| 3095 | } else { |
| 3096 | CHECK_EQ(idx, ifcount); |
| 3097 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3098 | klass->SetIfTable(iftable.get()); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3099 | |
| 3100 | // If we're an interface, we don't need the vtable pointers, so we're done. |
| 3101 | if (klass->IsInterface() /*|| super_ifcount == ifcount*/) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3102 | return true; |
| 3103 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3104 | std::vector<AbstractMethod*> miranda_list; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3105 | MethodHelper vtable_mh(NULL, this); |
| 3106 | MethodHelper interface_mh(NULL, this); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3107 | for (size_t i = 0; i < ifcount; ++i) { |
| 3108 | InterfaceEntry* interface_entry = iftable->Get(i); |
| 3109 | Class* interface = interface_entry->GetInterface(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3110 | ObjectArray<AbstractMethod>* method_array = AllocObjectArray<AbstractMethod>(interface->NumVirtualMethods()); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3111 | interface_entry->SetMethodArray(method_array); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3112 | ObjectArray<AbstractMethod>* vtable = klass->GetVTableDuringLinking(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3113 | for (size_t j = 0; j < interface->NumVirtualMethods(); ++j) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3114 | AbstractMethod* interface_method = interface->GetVirtualMethod(j); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3115 | interface_mh.ChangeMethod(interface_method); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3116 | int32_t k; |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3117 | // For each method listed in the interface's method list, find the |
| 3118 | // matching method in our class's method list. We want to favor the |
| 3119 | // subclass over the superclass, which just requires walking |
| 3120 | // back from the end of the vtable. (This only matters if the |
| 3121 | // superclass defines a private method and this class redefines |
| 3122 | // it -- otherwise it would use the same vtable slot. In .dex files |
| 3123 | // those don't end up in the virtual method table, so it shouldn't |
| 3124 | // matter which direction we go. We walk it backward anyway.) |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3125 | for (k = vtable->GetLength() - 1; k >= 0; --k) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3126 | AbstractMethod* vtable_method = vtable->Get(k); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3127 | vtable_mh.ChangeMethod(vtable_method); |
| 3128 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 3129 | if (!vtable_method->IsPublic()) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 3130 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 3131 | "Implementation not public: %s", PrettyMethod(vtable_method).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3132 | return false; |
| 3133 | } |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3134 | method_array->Set(j, vtable_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3135 | break; |
| 3136 | } |
| 3137 | } |
| 3138 | if (k < 0) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3139 | SirtRef<AbstractMethod> miranda_method(NULL); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3140 | for (size_t mir = 0; mir < miranda_list.size(); mir++) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3141 | AbstractMethod* mir_method = miranda_list[mir]; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3142 | vtable_mh.ChangeMethod(mir_method); |
| 3143 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3144 | miranda_method.reset(miranda_list[mir]); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3145 | break; |
| 3146 | } |
| 3147 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3148 | if (miranda_method.get() == NULL) { |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3149 | // point the interface table at a phantom slot |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3150 | miranda_method.reset(down_cast<AbstractMethod*>(interface_method->Clone())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3151 | miranda_list.push_back(miranda_method.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3152 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3153 | method_array->Set(j, miranda_method.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3154 | } |
| 3155 | } |
| 3156 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3157 | if (!miranda_list.empty()) { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3158 | int old_method_count = klass->NumVirtualMethods(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3159 | int new_method_count = old_method_count + miranda_list.size(); |
Brian Carlstrom | 27ec961 | 2011-09-19 20:20:38 -0700 | [diff] [blame] | 3160 | klass->SetVirtualMethods((old_method_count == 0) |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3161 | ? AllocObjectArray<AbstractMethod>(new_method_count) |
Brian Carlstrom | 27ec961 | 2011-09-19 20:20:38 -0700 | [diff] [blame] | 3162 | : klass->GetVirtualMethods()->CopyOf(new_method_count)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3163 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3164 | SirtRef<ObjectArray<AbstractMethod> > vtable(klass->GetVTableDuringLinking()); |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3165 | CHECK(vtable.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3166 | int old_vtable_count = vtable->GetLength(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3167 | int new_vtable_count = old_vtable_count + miranda_list.size(); |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3168 | vtable.reset(vtable->CopyOf(new_vtable_count)); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3169 | for (size_t i = 0; i < miranda_list.size(); ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3170 | AbstractMethod* method = miranda_list[i]; |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 3171 | // Leave the declaring class alone as type indices are relative to it |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 3172 | method->SetAccessFlags(method->GetAccessFlags() | kAccMiranda); |
| 3173 | method->SetMethodIndex(0xFFFF & (old_vtable_count + i)); |
| 3174 | klass->SetVirtualMethod(old_method_count + i, method); |
| 3175 | vtable->Set(old_vtable_count + i, method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3176 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3177 | // TODO: do not assign to the vtable field until it is fully constructed. |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3178 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3179 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3180 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3181 | ObjectArray<AbstractMethod>* vtable = klass->GetVTableDuringLinking(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3182 | for (int i = 0; i < vtable->GetLength(); ++i) { |
| 3183 | CHECK(vtable->Get(i) != NULL); |
| 3184 | } |
| 3185 | |
| 3186 | // klass->DumpClass(std::cerr, Class::kDumpClassFullDetail); |
| 3187 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3188 | return true; |
| 3189 | } |
| 3190 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3191 | bool ClassLinker::LinkInstanceFields(SirtRef<Class>& klass) { |
| 3192 | CHECK(klass.get() != NULL); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3193 | return LinkFields(klass, false); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3194 | } |
| 3195 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3196 | bool ClassLinker::LinkStaticFields(SirtRef<Class>& klass) { |
| 3197 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3198 | size_t allocated_class_size = klass->GetClassSize(); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3199 | bool success = LinkFields(klass, true); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3200 | CHECK_EQ(allocated_class_size, klass->GetClassSize()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3201 | return success; |
| 3202 | } |
| 3203 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3204 | struct LinkFieldsComparator { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3205 | explicit LinkFieldsComparator(FieldHelper* fh) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3206 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3207 | : fh_(fh) {} |
| 3208 | // No thread safety analysis as will be called from STL. Checked lock held in constructor. |
| 3209 | bool operator()(const Field* field1, const Field* field2) NO_THREAD_SAFETY_ANALYSIS { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3210 | // First come reference fields, then 64-bit, and finally 32-bit |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3211 | fh_->ChangeField(field1); |
| 3212 | Primitive::Type type1 = fh_->GetTypeAsPrimitiveType(); |
| 3213 | fh_->ChangeField(field2); |
| 3214 | Primitive::Type type2 = fh_->GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3215 | bool isPrimitive1 = type1 != Primitive::kPrimNot; |
| 3216 | bool isPrimitive2 = type2 != Primitive::kPrimNot; |
| 3217 | bool is64bit1 = isPrimitive1 && (type1 == Primitive::kPrimLong || type1 == Primitive::kPrimDouble); |
| 3218 | bool is64bit2 = isPrimitive2 && (type2 == Primitive::kPrimLong || type2 == Primitive::kPrimDouble); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3219 | int order1 = (!isPrimitive1 ? 0 : (is64bit1 ? 1 : 2)); |
| 3220 | int order2 = (!isPrimitive2 ? 0 : (is64bit2 ? 1 : 2)); |
| 3221 | if (order1 != order2) { |
| 3222 | return order1 < order2; |
| 3223 | } |
| 3224 | |
| 3225 | // same basic group? then sort by string. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3226 | fh_->ChangeField(field1); |
| 3227 | StringPiece name1(fh_->GetName()); |
| 3228 | fh_->ChangeField(field2); |
| 3229 | StringPiece name2(fh_->GetName()); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3230 | return name1 < name2; |
| 3231 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3232 | |
| 3233 | FieldHelper* fh_; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3234 | }; |
| 3235 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3236 | bool ClassLinker::LinkFields(SirtRef<Class>& klass, bool is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3237 | size_t num_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3238 | is_static ? klass->NumStaticFields() : klass->NumInstanceFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3239 | |
| 3240 | ObjectArray<Field>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3241 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3242 | |
| 3243 | // Initialize size and field_offset |
Brian Carlstrom | 693267a | 2011-09-06 09:25:34 -0700 | [diff] [blame] | 3244 | size_t size; |
| 3245 | MemberOffset field_offset(0); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3246 | if (is_static) { |
| 3247 | size = klass->GetClassSize(); |
| 3248 | field_offset = Class::FieldsOffset(); |
| 3249 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3250 | Class* super_class = klass->GetSuperClass(); |
| 3251 | if (super_class != NULL) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3252 | CHECK(super_class->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3253 | field_offset = MemberOffset(super_class->GetObjectSize()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3254 | } |
| 3255 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3256 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3257 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3258 | CHECK_EQ(num_fields == 0, fields == NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3259 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3260 | // we want a relatively stable order so that adding new fields |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3261 | // minimizes disruption of C++ version such as Class and Method. |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3262 | std::deque<Field*> grouped_and_sorted_fields; |
| 3263 | for (size_t i = 0; i < num_fields; i++) { |
| 3264 | grouped_and_sorted_fields.push_back(fields->Get(i)); |
| 3265 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3266 | FieldHelper fh(NULL, this); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3267 | std::sort(grouped_and_sorted_fields.begin(), |
| 3268 | grouped_and_sorted_fields.end(), |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3269 | LinkFieldsComparator(&fh)); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3270 | |
| 3271 | // References should be at the front. |
| 3272 | size_t current_field = 0; |
| 3273 | size_t num_reference_fields = 0; |
| 3274 | for (; current_field < num_fields; current_field++) { |
| 3275 | Field* field = grouped_and_sorted_fields.front(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3276 | fh.ChangeField(field); |
| 3277 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3278 | bool isPrimitive = type != Primitive::kPrimNot; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3279 | if (isPrimitive) { |
| 3280 | break; // past last reference, move on to the next phase |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3281 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3282 | grouped_and_sorted_fields.pop_front(); |
| 3283 | num_reference_fields++; |
| 3284 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3285 | field->SetOffset(field_offset); |
| 3286 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3287 | } |
| 3288 | |
| 3289 | // Now we want to pack all of the double-wide fields together. If |
| 3290 | // we're not aligned, though, we want to shuffle one 32-bit field |
| 3291 | // into place. If we can't find one, we'll have to pad it. |
Elliott Hughes | 06b37d9 | 2011-10-16 11:51:29 -0700 | [diff] [blame] | 3292 | if (current_field != num_fields && !IsAligned<8>(field_offset.Uint32Value())) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3293 | for (size_t i = 0; i < grouped_and_sorted_fields.size(); i++) { |
| 3294 | Field* field = grouped_and_sorted_fields[i]; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3295 | fh.ChangeField(field); |
| 3296 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3297 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
| 3298 | if (type == Primitive::kPrimLong || type == Primitive::kPrimDouble) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3299 | continue; |
| 3300 | } |
| 3301 | fields->Set(current_field++, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3302 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3303 | // drop the consumed field |
| 3304 | grouped_and_sorted_fields.erase(grouped_and_sorted_fields.begin() + i); |
| 3305 | break; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3306 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3307 | // whether we found a 32-bit field for padding or not, we advance |
| 3308 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3309 | } |
| 3310 | |
| 3311 | // Alignment is good, shuffle any double-wide fields forward, and |
| 3312 | // finish assigning field offsets to all fields. |
Elliott Hughes | 06b37d9 | 2011-10-16 11:51:29 -0700 | [diff] [blame] | 3313 | DCHECK(current_field == num_fields || IsAligned<8>(field_offset.Uint32Value())); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3314 | while (!grouped_and_sorted_fields.empty()) { |
| 3315 | Field* field = grouped_and_sorted_fields.front(); |
| 3316 | grouped_and_sorted_fields.pop_front(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3317 | fh.ChangeField(field); |
| 3318 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3319 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3320 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3321 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3322 | field_offset = MemberOffset(field_offset.Uint32Value() + |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3323 | ((type == Primitive::kPrimLong || type == Primitive::kPrimDouble) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3324 | ? sizeof(uint64_t) |
| 3325 | : sizeof(uint32_t))); |
| 3326 | current_field++; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3327 | } |
| 3328 | |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3329 | // We lie to the GC about the java.lang.ref.Reference.referent field, so it doesn't scan it. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3330 | std::string descriptor(ClassHelper(klass.get(), this).GetDescriptor()); |
| 3331 | if (!is_static && descriptor == "Ljava/lang/ref/Reference;") { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3332 | // We know there are no non-reference fields in the Reference classes, and we know |
| 3333 | // that 'referent' is alphabetically last, so this is easy... |
| 3334 | CHECK_EQ(num_reference_fields, num_fields); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3335 | fh.ChangeField(fields->Get(num_fields - 1)); |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 3336 | CHECK_STREQ(fh.GetName(), "referent"); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3337 | --num_reference_fields; |
| 3338 | } |
| 3339 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3340 | #ifndef NDEBUG |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3341 | // Make sure that all reference fields appear before |
| 3342 | // non-reference fields, and all double-wide fields are aligned. |
| 3343 | bool seen_non_ref = false; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3344 | for (size_t i = 0; i < num_fields; i++) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3345 | Field* field = fields->Get(i); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3346 | if (false) { // enable to debug field layout |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3347 | LOG(INFO) << "LinkFields: " << (is_static ? "static" : "instance") |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3348 | << " class=" << PrettyClass(klass.get()) |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 3349 | << " field=" << PrettyField(field) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3350 | << " offset=" << field->GetField32(MemberOffset(Field::OffsetOffset()), false); |
| 3351 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3352 | fh.ChangeField(field); |
| 3353 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3354 | bool is_primitive = type != Primitive::kPrimNot; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3355 | if (descriptor == "Ljava/lang/ref/Reference;" && StringPiece(fh.GetName()) == "referent") { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3356 | is_primitive = true; // We lied above, so we have to expect a lie here. |
| 3357 | } |
| 3358 | if (is_primitive) { |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3359 | if (!seen_non_ref) { |
| 3360 | seen_non_ref = true; |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3361 | DCHECK_EQ(num_reference_fields, i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3362 | } |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3363 | } else { |
| 3364 | DCHECK(!seen_non_ref); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3365 | } |
| 3366 | } |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3367 | if (!seen_non_ref) { |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3368 | DCHECK_EQ(num_fields, num_reference_fields); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3369 | } |
| 3370 | #endif |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3371 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3372 | // Update klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3373 | if (is_static) { |
| 3374 | klass->SetNumReferenceStaticFields(num_reference_fields); |
| 3375 | klass->SetClassSize(size); |
| 3376 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3377 | klass->SetNumReferenceInstanceFields(num_reference_fields); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3378 | if (!klass->IsVariableSize()) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3379 | klass->SetObjectSize(size); |
| 3380 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3381 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3382 | return true; |
| 3383 | } |
| 3384 | |
| 3385 | // Set the bitmap of reference offsets, refOffsets, from the ifields |
| 3386 | // list. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3387 | void ClassLinker::CreateReferenceInstanceOffsets(SirtRef<Class>& klass) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3388 | uint32_t reference_offsets = 0; |
| 3389 | Class* super_class = klass->GetSuperClass(); |
| 3390 | if (super_class != NULL) { |
| 3391 | reference_offsets = super_class->GetReferenceInstanceOffsets(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3392 | // If our superclass overflowed, we don't stand a chance. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3393 | if (reference_offsets == CLASS_WALK_SUPER) { |
| 3394 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3395 | return; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3396 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3397 | } |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3398 | CreateReferenceOffsets(klass, false, reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3399 | } |
| 3400 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3401 | void ClassLinker::CreateReferenceStaticOffsets(SirtRef<Class>& klass) { |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3402 | CreateReferenceOffsets(klass, true, 0); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3403 | } |
| 3404 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3405 | void ClassLinker::CreateReferenceOffsets(SirtRef<Class>& klass, bool is_static, |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3406 | uint32_t reference_offsets) { |
| 3407 | size_t num_reference_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3408 | is_static ? klass->NumReferenceStaticFieldsDuringLinking() |
| 3409 | : klass->NumReferenceInstanceFieldsDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3410 | const ObjectArray<Field>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3411 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3412 | // All of the fields that contain object references are guaranteed |
| 3413 | // to be at the beginning of the fields list. |
| 3414 | for (size_t i = 0; i < num_reference_fields; ++i) { |
| 3415 | // Note that byte_offset is the offset from the beginning of |
| 3416 | // object, not the offset into instance data |
| 3417 | const Field* field = fields->Get(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3418 | MemberOffset byte_offset = field->GetOffsetDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3419 | CHECK_EQ(byte_offset.Uint32Value() & (CLASS_OFFSET_ALIGNMENT - 1), 0U); |
| 3420 | if (CLASS_CAN_ENCODE_OFFSET(byte_offset.Uint32Value())) { |
| 3421 | uint32_t new_bit = CLASS_BIT_FROM_OFFSET(byte_offset.Uint32Value()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3422 | CHECK_NE(new_bit, 0U); |
| 3423 | reference_offsets |= new_bit; |
| 3424 | } else { |
| 3425 | reference_offsets = CLASS_WALK_SUPER; |
| 3426 | break; |
| 3427 | } |
| 3428 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3429 | // Update fields in klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3430 | if (is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3431 | klass->SetReferenceStaticOffsets(reference_offsets); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3432 | } else { |
| 3433 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3434 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3435 | } |
| 3436 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3437 | String* ClassLinker::ResolveString(const DexFile& dex_file, |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 3438 | uint32_t string_idx, DexCache* dex_cache) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3439 | DCHECK(dex_cache != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3440 | String* resolved = dex_cache->GetResolvedString(string_idx); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3441 | if (resolved != NULL) { |
| 3442 | return resolved; |
| 3443 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3444 | const DexFile::StringId& string_id = dex_file.GetStringId(string_idx); |
| 3445 | int32_t utf16_length = dex_file.GetStringLength(string_id); |
| 3446 | const char* utf8_data = dex_file.GetStringData(string_id); |
Brian Carlstrom | 928bf02 | 2011-10-11 02:48:14 -0700 | [diff] [blame] | 3447 | String* string = intern_table_->InternStrong(utf16_length, utf8_data); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3448 | dex_cache->SetResolvedString(string_idx, string); |
| 3449 | return string; |
| 3450 | } |
| 3451 | |
| 3452 | Class* ClassLinker::ResolveType(const DexFile& dex_file, |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3453 | uint16_t type_idx, |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3454 | DexCache* dex_cache, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 3455 | ClassLoader* class_loader) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3456 | DCHECK(dex_cache != NULL); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3457 | Class* resolved = dex_cache->GetResolvedType(type_idx); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3458 | if (resolved == NULL) { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3459 | const char* descriptor = dex_file.StringByTypeIdx(type_idx); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 3460 | resolved = FindClass(descriptor, class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3461 | if (resolved != NULL) { |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 3462 | // TODO: we used to throw here if resolved's class loader was not the |
| 3463 | // boot class loader. This was to permit different classes with the |
| 3464 | // same name to be loaded simultaneously by different loaders |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3465 | dex_cache->SetResolvedType(type_idx, resolved); |
| 3466 | } else { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 3467 | CHECK(Thread::Current()->IsExceptionPending()) |
| 3468 | << "Expected pending exception for failed resolution of: " << descriptor; |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 3469 | // Convert a ClassNotFoundException to a NoClassDefFoundError |
| 3470 | if (Thread::Current()->GetException()->InstanceOf(GetClassRoot(kJavaLangClassNotFoundException))) { |
| 3471 | Thread::Current()->ClearException(); |
| 3472 | ThrowNoClassDefFoundError("Failed resolution of: %s", descriptor); |
| 3473 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3474 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3475 | } |
| 3476 | return resolved; |
| 3477 | } |
| 3478 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3479 | AbstractMethod* ClassLinker::ResolveMethod(const DexFile& dex_file, |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3480 | uint32_t method_idx, |
| 3481 | DexCache* dex_cache, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 3482 | ClassLoader* class_loader, |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3483 | const AbstractMethod* referrer, |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3484 | InvokeType type) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3485 | DCHECK(dex_cache != NULL); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3486 | // Check for hit in the dex cache. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3487 | AbstractMethod* resolved = dex_cache->GetResolvedMethod(method_idx); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3488 | if (resolved != NULL) { |
| 3489 | return resolved; |
| 3490 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3491 | // Fail, get the declaring class. |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3492 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
| 3493 | Class* klass = ResolveType(dex_file, method_id.class_idx_, dex_cache, class_loader); |
| 3494 | if (klass == NULL) { |
Elliott Hughes | cc5f9a9 | 2011-09-28 19:17:29 -0700 | [diff] [blame] | 3495 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3496 | return NULL; |
| 3497 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3498 | // Scan using method_idx, this saves string compares but will only hit for matching dex |
| 3499 | // caches/files. |
| 3500 | switch (type) { |
| 3501 | case kDirect: // Fall-through. |
| 3502 | case kStatic: |
| 3503 | resolved = klass->FindDirectMethod(dex_cache, method_idx); |
| 3504 | break; |
| 3505 | case kInterface: |
| 3506 | resolved = klass->FindInterfaceMethod(dex_cache, method_idx); |
| 3507 | break; |
| 3508 | case kSuper: // Fall-through. |
| 3509 | case kVirtual: |
| 3510 | resolved = klass->FindVirtualMethod(dex_cache, method_idx); |
| 3511 | break; |
| 3512 | default: |
| 3513 | LOG(FATAL) << "Unreachable - invocation type: " << type; |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3514 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3515 | if (resolved == NULL) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3516 | // Search by name, which works across dex files. |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3517 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
| 3518 | std::string signature(dex_file.CreateMethodSignature(method_id.proto_idx_, NULL)); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3519 | switch (type) { |
| 3520 | case kDirect: // Fall-through. |
| 3521 | case kStatic: |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 3522 | resolved = klass->FindDirectMethod(name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3523 | break; |
| 3524 | case kInterface: |
| 3525 | resolved = klass->FindInterfaceMethod(name, signature); |
| 3526 | break; |
| 3527 | case kSuper: // Fall-through. |
| 3528 | case kVirtual: |
| 3529 | resolved = klass->FindVirtualMethod(name, signature); |
| 3530 | break; |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3531 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3532 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3533 | if (resolved != NULL) { |
| 3534 | // We found a method, check for incompatible class changes. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 3535 | if (resolved->CheckIncompatibleClassChange(type)) { |
| 3536 | resolved = NULL; |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3537 | } |
| 3538 | } |
| 3539 | if (resolved != NULL) { |
| 3540 | // Be a good citizen and update the dex cache to speed subsequent calls. |
| 3541 | dex_cache->SetResolvedMethod(method_idx, resolved); |
| 3542 | return resolved; |
| 3543 | } else { |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 3544 | // We failed to find the method which means either an access error, an incompatible class |
| 3545 | // change, or no such method. First try to find the method among direct and virtual methods. |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3546 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
| 3547 | std::string signature(dex_file.CreateMethodSignature(method_id.proto_idx_, NULL)); |
| 3548 | switch (type) { |
| 3549 | case kDirect: |
| 3550 | case kStatic: |
| 3551 | resolved = klass->FindVirtualMethod(name, signature); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 3552 | break; |
| 3553 | case kInterface: |
| 3554 | case kVirtual: |
| 3555 | case kSuper: |
| 3556 | resolved = klass->FindDirectMethod(name, signature); |
| 3557 | break; |
| 3558 | } |
| 3559 | |
| 3560 | // If we found something, check that it can be accessed by the referrer. |
| 3561 | if (resolved != NULL && referrer != NULL) { |
| 3562 | Class* methods_class = resolved->GetDeclaringClass(); |
| 3563 | Class* referring_class = referrer->GetDeclaringClass(); |
| 3564 | if (!referring_class->CanAccess(methods_class)) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 3565 | ThrowIllegalAccessErrorClassForMethodDispatch(referring_class, methods_class, |
| 3566 | referrer, resolved, type); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 3567 | return NULL; |
| 3568 | } else if (!referring_class->CanAccessMember(methods_class, |
| 3569 | resolved->GetAccessFlags())) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 3570 | ThrowIllegalAccessErrorMethod(referring_class, resolved); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 3571 | return NULL; |
| 3572 | } |
| 3573 | } |
| 3574 | |
| 3575 | // Otherwise, throw an IncompatibleClassChangeError if we found something, and check interface |
| 3576 | // methods and throw if we find the method there. If we find nothing, throw a NoSuchMethodError. |
| 3577 | switch (type) { |
| 3578 | case kDirect: |
| 3579 | case kStatic: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3580 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3581 | ThrowIncompatibleClassChangeError(type, kVirtual, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3582 | } else { |
| 3583 | resolved = klass->FindInterfaceMethod(name, signature); |
| 3584 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3585 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3586 | } else { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3587 | ThrowNoSuchMethodError(type, klass, name, signature, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3588 | } |
| 3589 | } |
| 3590 | break; |
| 3591 | case kInterface: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3592 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3593 | ThrowIncompatibleClassChangeError(type, kDirect, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3594 | } else { |
| 3595 | resolved = klass->FindVirtualMethod(name, signature); |
| 3596 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3597 | ThrowIncompatibleClassChangeError(type, kVirtual, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3598 | } else { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3599 | ThrowNoSuchMethodError(type, klass, name, signature, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3600 | } |
| 3601 | } |
| 3602 | break; |
| 3603 | case kSuper: |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3604 | ThrowNoSuchMethodError(type, klass, name, signature, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3605 | break; |
| 3606 | case kVirtual: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3607 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3608 | ThrowIncompatibleClassChangeError(type, kDirect, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3609 | } else { |
| 3610 | resolved = klass->FindInterfaceMethod(name, signature); |
| 3611 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3612 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3613 | } else { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3614 | ThrowNoSuchMethodError(type, klass, name, signature, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3615 | } |
| 3616 | } |
| 3617 | break; |
| 3618 | } |
| 3619 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 3620 | return NULL; |
| 3621 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3622 | } |
| 3623 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3624 | Field* ClassLinker::ResolveField(const DexFile& dex_file, |
| 3625 | uint32_t field_idx, |
| 3626 | DexCache* dex_cache, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 3627 | ClassLoader* class_loader, |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3628 | bool is_static) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3629 | DCHECK(dex_cache != NULL); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3630 | Field* resolved = dex_cache->GetResolvedField(field_idx); |
| 3631 | if (resolved != NULL) { |
| 3632 | return resolved; |
| 3633 | } |
| 3634 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
| 3635 | Class* klass = ResolveType(dex_file, field_id.class_idx_, dex_cache, class_loader); |
| 3636 | if (klass == NULL) { |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 3637 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3638 | return NULL; |
| 3639 | } |
| 3640 | |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3641 | if (is_static) { |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3642 | resolved = klass->FindStaticField(dex_cache, field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3643 | } else { |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3644 | resolved = klass->FindInstanceField(dex_cache, field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3645 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3646 | |
| 3647 | if (resolved == NULL) { |
| 3648 | const char* name = dex_file.GetFieldName(field_id); |
| 3649 | const char* type = dex_file.GetFieldTypeDescriptor(field_id); |
| 3650 | if (is_static) { |
| 3651 | resolved = klass->FindStaticField(name, type); |
| 3652 | } else { |
| 3653 | resolved = klass->FindInstanceField(name, type); |
| 3654 | } |
| 3655 | if (resolved == NULL) { |
| 3656 | ThrowNoSuchFieldError(is_static ? "static " : "instance ", klass, type, name); |
| 3657 | return NULL; |
| 3658 | } |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 3659 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3660 | dex_cache->SetResolvedField(field_idx, resolved); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 3661 | return resolved; |
| 3662 | } |
| 3663 | |
| 3664 | Field* ClassLinker::ResolveFieldJLS(const DexFile& dex_file, |
| 3665 | uint32_t field_idx, |
| 3666 | DexCache* dex_cache, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 3667 | ClassLoader* class_loader) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3668 | DCHECK(dex_cache != NULL); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 3669 | Field* resolved = dex_cache->GetResolvedField(field_idx); |
| 3670 | if (resolved != NULL) { |
| 3671 | return resolved; |
| 3672 | } |
| 3673 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
| 3674 | Class* klass = ResolveType(dex_file, field_id.class_idx_, dex_cache, class_loader); |
| 3675 | if (klass == NULL) { |
| 3676 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 3677 | return NULL; |
| 3678 | } |
| 3679 | |
| 3680 | const char* name = dex_file.GetFieldName(field_id); |
| 3681 | const char* type = dex_file.GetFieldTypeDescriptor(field_id); |
| 3682 | resolved = klass->FindField(name, type); |
| 3683 | if (resolved != NULL) { |
| 3684 | dex_cache->SetResolvedField(field_idx, resolved); |
| 3685 | } else { |
| 3686 | ThrowNoSuchFieldError("", klass, type, name); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3687 | } |
| 3688 | return resolved; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 3689 | } |
| 3690 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame^] | 3691 | const char* ClassLinker::MethodShorty(uint32_t method_idx, AbstractMethod* referrer, uint32_t* length) { |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 3692 | Class* declaring_class = referrer->GetDeclaringClass(); |
| 3693 | DexCache* dex_cache = declaring_class->GetDexCache(); |
| 3694 | const DexFile& dex_file = FindDexFile(dex_cache); |
| 3695 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 3696 | return dex_file.GetMethodShorty(method_id, length); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 3697 | } |
| 3698 | |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 3699 | void ClassLinker::DumpAllClasses(int flags) const { |
| 3700 | // TODO: at the time this was written, it wasn't safe to call PrettyField with the ClassLinker |
| 3701 | // lock held, because it might need to resolve a field's type, which would try to take the lock. |
| 3702 | std::vector<Class*> all_classes; |
| 3703 | { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3704 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 3705 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 3706 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
| 3707 | all_classes.push_back(it->second); |
| 3708 | } |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 3709 | for (It it = image_classes_.begin(), end = image_classes_.end(); it != end; ++it) { |
| 3710 | all_classes.push_back(it->second); |
| 3711 | } |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 3712 | } |
| 3713 | |
| 3714 | for (size_t i = 0; i < all_classes.size(); ++i) { |
| 3715 | all_classes[i]->DumpClass(std::cerr, flags); |
| 3716 | } |
| 3717 | } |
| 3718 | |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 3719 | void ClassLinker::DumpForSigQuit(std::ostream& os) const { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3720 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 3721 | os << "Loaded classes: " << image_classes_.size() << " image classes; " |
| 3722 | << classes_.size() << " allocated classes\n"; |
| 3723 | } |
| 3724 | |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 3725 | size_t ClassLinker::NumLoadedClasses() const { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3726 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 3727 | return classes_.size() + image_classes_.size(); |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 3728 | } |
| 3729 | |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 3730 | pid_t ClassLinker::GetClassesLockOwner() { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3731 | return Locks::classlinker_classes_lock_->GetExclusiveOwnerTid(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 3732 | } |
| 3733 | |
| 3734 | pid_t ClassLinker::GetDexLockOwner() { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3735 | return dex_lock_.GetExclusiveOwnerTid(); |
Brian Carlstrom | 24a3c2e | 2011-10-17 18:07:52 -0700 | [diff] [blame] | 3736 | } |
| 3737 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3738 | void ClassLinker::SetClassRoot(ClassRoot class_root, Class* klass) { |
| 3739 | DCHECK(!init_done_); |
| 3740 | |
| 3741 | DCHECK(klass != NULL); |
| 3742 | DCHECK(klass->GetClassLoader() == NULL); |
| 3743 | |
| 3744 | DCHECK(class_roots_ != NULL); |
| 3745 | DCHECK(class_roots_->Get(class_root) == NULL); |
| 3746 | class_roots_->Set(class_root, klass); |
| 3747 | } |
| 3748 | |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 3749 | void ClassLinker::RelocateExecutable() { |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 3750 | MutexLock mu(dex_lock_); |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 3751 | for (size_t i = 0; i < oat_files_.size(); ++i) { |
| 3752 | const_cast<OatFile*>(oat_files_[i])->RelocateExecutable(); |
| 3753 | } |
| 3754 | } |
| 3755 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3756 | } // namespace art |